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Clean up repo.

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sigonasr2 1 year ago
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      Example/assets/Monsters.txt
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      Example/freetype.dll
  17. 51
      Example/include/freetype/config/ftconfig.h
  18. 836
      Example/include/freetype/config/ftheader.h
  19. 33
      Example/include/freetype/config/ftmodule.h
  20. 1014
      Example/include/freetype/config/ftoption.h
  21. 185
      Example/include/freetype/config/ftstdlib.h
  22. 250
      Example/include/freetype/config/integer-types.h
  23. 49
      Example/include/freetype/config/mac-support.h
  24. 138
      Example/include/freetype/config/public-macros.h
  25. 5337
      Example/include/freetype/freetype.h
  26. 188
      Example/include/freetype/ftadvanc.h
  27. 101
      Example/include/freetype/ftbbox.h
  28. 212
      Example/include/freetype/ftbdf.h
  29. 329
      Example/include/freetype/ftbitmap.h
  30. 102
      Example/include/freetype/ftbzip2.h
  31. 1087
      Example/include/freetype/ftcache.h
  32. 168
      Example/include/freetype/ftchapters.h
  33. 167
      Example/include/freetype/ftcid.h
  34. 1667
      Example/include/freetype/ftcolor.h
  35. 1246
      Example/include/freetype/ftdriver.h
  36. 283
      Example/include/freetype/fterrdef.h
  37. 296
      Example/include/freetype/fterrors.h
  38. 93
      Example/include/freetype/ftfntfmt.h
  39. 143
      Example/include/freetype/ftgasp.h
  40. 750
      Example/include/freetype/ftglyph.h
  41. 354
      Example/include/freetype/ftgxval.h
  42. 151
      Example/include/freetype/ftgzip.h
  43. 1284
      Example/include/freetype/ftimage.h
  44. 348
      Example/include/freetype/ftincrem.h
  45. 323
      Example/include/freetype/ftlcdfil.h
  46. 296
      Example/include/freetype/ftlist.h
  47. 184
      Example/include/freetype/ftlogging.h
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      Example/include/freetype/ftlzw.h
  49. 289
      Example/include/freetype/ftmac.h
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      Example/include/freetype/ftmm.h
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      Example/include/freetype/ftmodapi.h
  52. 204
      Example/include/freetype/ftmoderr.h
  53. 206
      Example/include/freetype/ftotval.h
  54. 588
      Example/include/freetype/ftoutln.h
  55. 218
      Example/include/freetype/ftparams.h
  56. 179
      Example/include/freetype/ftpfr.h
  57. 244
      Example/include/freetype/ftrender.h
  58. 159
      Example/include/freetype/ftsizes.h
  59. 272
      Example/include/freetype/ftsnames.h
  60. 773
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  61. 104
      Example/include/freetype/ftsynth.h
  62. 350
      Example/include/freetype/ftsystem.h
  63. 350
      Example/include/freetype/fttrigon.h
  64. 617
      Example/include/freetype/fttypes.h
  65. 276
      Example/include/freetype/ftwinfnt.h
  66. 234
      Example/include/freetype/internal/autohint.h
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      Example/include/freetype/internal/cffotypes.h
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      Example/include/freetype/internal/cfftypes.h
  69. 343
      Example/include/freetype/internal/compiler-macros.h
  70. 581
      Example/include/freetype/internal/ftcalc.h
  71. 442
      Example/include/freetype/internal/ftdebug.h
  72. 289
      Example/include/freetype/internal/ftdrv.h
  73. 147
      Example/include/freetype/internal/ftgloadr.h
  74. 135
      Example/include/freetype/internal/fthash.h
  75. 398
      Example/include/freetype/internal/ftmemory.h
  76. 91
      Example/include/freetype/internal/ftmmtypes.h
  77. 1238
      Example/include/freetype/internal/ftobjs.h
  78. 47
      Example/include/freetype/internal/ftpsprop.h
  79. 245
      Example/include/freetype/internal/ftrfork.h
  80. 495
      Example/include/freetype/internal/ftserv.h
  81. 570
      Example/include/freetype/internal/ftstream.h
  82. 172
      Example/include/freetype/internal/fttrace.h
  83. 160
      Example/include/freetype/internal/ftvalid.h
  84. 1434
      Example/include/freetype/internal/psaux.h
  85. 699
      Example/include/freetype/internal/pshints.h
  86. 66
      Example/include/freetype/internal/services/svbdf.h
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      Example/include/freetype/internal/services/svcfftl.h
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      Example/include/freetype/internal/services/svcid.h
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      Example/include/freetype/internal/services/svfntfmt.h
  90. 72
      Example/include/freetype/internal/services/svgldict.h
  91. 72
      Example/include/freetype/internal/services/svgxval.h
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      Example/include/freetype/internal/services/svkern.h
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      Example/include/freetype/internal/services/svmetric.h
  94. 214
      Example/include/freetype/internal/services/svmm.h
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      Example/include/freetype/internal/services/svotval.h
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      Example/include/freetype/internal/services/svpfr.h
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      Example/include/freetype/internal/services/svpscmap.h
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Monsters
{
GREEN_SLIME = 4, 0.4, TEST
GREEN_SLIME
{
Name = Green Slime
Health = 10
Attack = 5
CollisionDmg = 5
MoveSpd = 110
Size = 80
Strategy = RUN_TOWARDS
ANIMATION[0] = TEST
}
BLUE_SLIME
{
Name = Blue Slime
Health = 30
Attack = 10
CollisionDmg = 0
MoveSpd = 80
Size = 100
Strategy = SHOOT_AFAR
}
RED_SLIME
{
Name = Red Slime
Health = 25
Attack = 10
CollisionDmg = 10
MoveSpd = 95
Size = 120
Strategy = RUN_TOWARDS
}
YELLOW_SLIME
{
Name = Yellow Slime
Health = 175
Attack = 10
CollisionDmg = 15
MoveSpd = 40
Size = 160
Strategy = RUN_TOWARDS
}
FLOWER_TURRET
{
Name = Flower Turret
Health = 40
Attack = 10
CollisionDmg = 0
MoveSpd = 0
Size = 100
Strategy = TURRET
}
TEST[0]=4
TEST[1]=6
TEST[2]=8
}

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# Exported from Wings 3D 2.2.9
newmtl default
Ns 19.999999999999996
d 1.0
illum 2
Kd 0.7898538076923077 0.8133333333333334 0.6940444444444445
Ka 0.0 0.0 0.0
Ks 0.1689853807692308 0.17133333333333334 0.15940444444444446
Ke 0.0 0.0 0.0

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Example/include/freetype/config/ftconfig.h
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/****************************************************************************
*
* ftconfig.h
*
* ANSI-specific configuration file (specification only).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This header file contains a number of macro definitions that are used by
* the rest of the engine. Most of the macros here are automatically
* determined at compile time, and you should not need to change it to port
* FreeType, except to compile the library with a non-ANSI compiler.
*
* Note however that if some specific modifications are needed, we advise
* you to place a modified copy in your build directory.
*
* The build directory is usually `builds/<system>`, and contains
* system-specific files that are always included first when building the
* library.
*
* This ANSI version should stay in `include/config/`.
*
*/
#ifndef FTCONFIG_H_
#define FTCONFIG_H_
#include <ft2build.h>
#include FT_CONFIG_OPTIONS_H
#include FT_CONFIG_STANDARD_LIBRARY_H
#include <freetype/config/integer-types.h>
#include <freetype/config/public-macros.h>
#include <freetype/config/mac-support.h>
#endif /* FTCONFIG_H_ */
/* END */

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/****************************************************************************
*
* ftheader.h
*
* Build macros of the FreeType 2 library.
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTHEADER_H_
#define FTHEADER_H_
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_BEGIN_HEADER */
/* */
/* <Description> */
/* This macro is used in association with @FT_END_HEADER in header */
/* files to ensure that the declarations within are properly */
/* encapsulated in an `extern "C" { .. }` block when included from a */
/* C++ compiler. */
/* */
#ifndef FT_BEGIN_HEADER
# ifdef __cplusplus
# define FT_BEGIN_HEADER extern "C" {
# else
# define FT_BEGIN_HEADER /* nothing */
# endif
#endif
/*@***********************************************************************/
/* */
/* <Macro> */
/* FT_END_HEADER */
/* */
/* <Description> */
/* This macro is used in association with @FT_BEGIN_HEADER in header */
/* files to ensure that the declarations within are properly */
/* encapsulated in an `extern "C" { .. }` block when included from a */
/* C++ compiler. */
/* */
#ifndef FT_END_HEADER
# ifdef __cplusplus
# define FT_END_HEADER }
# else
# define FT_END_HEADER /* nothing */
# endif
#endif
/**************************************************************************
*
* Aliases for the FreeType 2 public and configuration files.
*
*/
/**************************************************************************
*
* @section:
* header_file_macros
*
* @title:
* Header File Macros
*
* @abstract:
* Macro definitions used to `#include` specific header files.
*
* @description:
* In addition to the normal scheme of including header files like
*
* ```
* #include <freetype/freetype.h>
* #include <freetype/ftmm.h>
* #include <freetype/ftglyph.h>
* ```
*
* it is possible to used named macros instead. They can be used
* directly in `#include` statements as in
*
* ```
* #include FT_FREETYPE_H
* #include FT_MULTIPLE_MASTERS_H
* #include FT_GLYPH_H
* ```
*
* These macros were introduced to overcome the infamous 8.3~naming rule
* required by DOS (and `FT_MULTIPLE_MASTERS_H` is a lot more meaningful
* than `ftmm.h`).
*
*/
/* configuration files */
/**************************************************************************
*
* @macro:
* FT_CONFIG_CONFIG_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 configuration data.
*
*/
#ifndef FT_CONFIG_CONFIG_H
#define FT_CONFIG_CONFIG_H <freetype/config/ftconfig.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_STANDARD_LIBRARY_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 interface to the standard C library functions.
*
*/
#ifndef FT_CONFIG_STANDARD_LIBRARY_H
#define FT_CONFIG_STANDARD_LIBRARY_H <freetype/config/ftstdlib.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_OPTIONS_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* FreeType~2 project-specific configuration options.
*
*/
#ifndef FT_CONFIG_OPTIONS_H
#define FT_CONFIG_OPTIONS_H <freetype/config/ftoption.h>
#endif
/**************************************************************************
*
* @macro:
* FT_CONFIG_MODULES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 modules that are statically linked to new library
* instances in @FT_Init_FreeType.
*
*/
#ifndef FT_CONFIG_MODULES_H
#define FT_CONFIG_MODULES_H <freetype/config/ftmodule.h>
#endif
/* */
/* public headers */
/**************************************************************************
*
* @macro:
* FT_FREETYPE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* base FreeType~2 API.
*
*/
#define FT_FREETYPE_H <freetype/freetype.h>
/**************************************************************************
*
* @macro:
* FT_ERRORS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 error codes (and messages).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_ERRORS_H <freetype/fterrors.h>
/**************************************************************************
*
* @macro:
* FT_MODULE_ERRORS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list of FreeType~2 module error offsets (and messages).
*
*/
#define FT_MODULE_ERRORS_H <freetype/ftmoderr.h>
/**************************************************************************
*
* @macro:
* FT_SYSTEM_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 interface to low-level operations (i.e., memory management
* and stream i/o).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_SYSTEM_H <freetype/ftsystem.h>
/**************************************************************************
*
* @macro:
* FT_IMAGE_H
*
* @description:
* A macro used in `#include` statements to name the file containing type
* definitions related to glyph images (i.e., bitmaps, outlines,
* scan-converter parameters).
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_IMAGE_H <freetype/ftimage.h>
/**************************************************************************
*
* @macro:
* FT_TYPES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* basic data types defined by FreeType~2.
*
* It is included by @FT_FREETYPE_H.
*
*/
#define FT_TYPES_H <freetype/fttypes.h>
/**************************************************************************
*
* @macro:
* FT_LIST_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* list management API of FreeType~2.
*
* (Most applications will never need to include this file.)
*
*/
#define FT_LIST_H <freetype/ftlist.h>
/**************************************************************************
*
* @macro:
* FT_OUTLINE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* scalable outline management API of FreeType~2.
*
*/
#define FT_OUTLINE_H <freetype/ftoutln.h>
/**************************************************************************
*
* @macro:
* FT_SIZES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API which manages multiple @FT_Size objects per face.
*
*/
#define FT_SIZES_H <freetype/ftsizes.h>
/**************************************************************************
*
* @macro:
* FT_MODULE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* module management API of FreeType~2.
*
*/
#define FT_MODULE_H <freetype/ftmodapi.h>
/**************************************************************************
*
* @macro:
* FT_RENDER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* renderer module management API of FreeType~2.
*
*/
#define FT_RENDER_H <freetype/ftrender.h>
/**************************************************************************
*
* @macro:
* FT_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the driver modules.
*
*/
#define FT_DRIVER_H <freetype/ftdriver.h>
/**************************************************************************
*
* @macro:
* FT_AUTOHINTER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the auto-hinting module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_AUTOHINTER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_CFF_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the CFF driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_CFF_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the TrueType driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_TRUETYPE_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_PCF_DRIVER_H
*
* @description:
* A macro used in `#include` statements to name the file containing
* structures and macros related to the PCF driver module.
*
* Deprecated since version~2.9; use @FT_DRIVER_H instead.
*
*/
#define FT_PCF_DRIVER_H FT_DRIVER_H
/**************************************************************************
*
* @macro:
* FT_TYPE1_TABLES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* types and API specific to the Type~1 format.
*
*/
#define FT_TYPE1_TABLES_H <freetype/t1tables.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_IDS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* enumeration values which identify name strings, languages, encodings,
* etc. This file really contains a _large_ set of constant macro
* definitions, taken from the TrueType and OpenType specifications.
*
*/
#define FT_TRUETYPE_IDS_H <freetype/ttnameid.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_TABLES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* types and API specific to the TrueType (as well as OpenType) format.
*
*/
#define FT_TRUETYPE_TABLES_H <freetype/tttables.h>
/**************************************************************************
*
* @macro:
* FT_TRUETYPE_TAGS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of TrueType four-byte 'tags' which identify blocks in
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
#define FT_TRUETYPE_TAGS_H <freetype/tttags.h>
/**************************************************************************
*
* @macro:
* FT_BDF_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which accesses BDF-specific strings from a face.
*
*/
#define FT_BDF_H <freetype/ftbdf.h>
/**************************************************************************
*
* @macro:
* FT_CID_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which access CID font information from a face.
*
*/
#define FT_CID_H <freetype/ftcid.h>
/**************************************************************************
*
* @macro:
* FT_GZIP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports gzip-compressed files.
*
*/
#define FT_GZIP_H <freetype/ftgzip.h>
/**************************************************************************
*
* @macro:
* FT_LZW_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports LZW-compressed files.
*
*/
#define FT_LZW_H <freetype/ftlzw.h>
/**************************************************************************
*
* @macro:
* FT_BZIP2_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports bzip2-compressed files.
*
*/
#define FT_BZIP2_H <freetype/ftbzip2.h>
/**************************************************************************
*
* @macro:
* FT_WINFONTS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* definitions of an API which supports Windows FNT files.
*
*/
#define FT_WINFONTS_H <freetype/ftwinfnt.h>
/**************************************************************************
*
* @macro:
* FT_GLYPH_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional glyph management component.
*
*/
#define FT_GLYPH_H <freetype/ftglyph.h>
/**************************************************************************
*
* @macro:
* FT_BITMAP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional bitmap conversion component.
*
*/
#define FT_BITMAP_H <freetype/ftbitmap.h>
/**************************************************************************
*
* @macro:
* FT_BBOX_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional exact bounding box computation routines.
*
*/
#define FT_BBOX_H <freetype/ftbbox.h>
/**************************************************************************
*
* @macro:
* FT_CACHE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* API of the optional FreeType~2 cache sub-system.
*
*/
#define FT_CACHE_H <freetype/ftcache.h>
/**************************************************************************
*
* @macro:
* FT_MAC_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* Macintosh-specific FreeType~2 API. The latter is used to access fonts
* embedded in resource forks.
*
* This header file must be explicitly included by client applications
* compiled on the Mac (note that the base API still works though).
*
*/
#define FT_MAC_H <freetype/ftmac.h>
/**************************************************************************
*
* @macro:
* FT_MULTIPLE_MASTERS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional multiple-masters management API of FreeType~2.
*
*/
#define FT_MULTIPLE_MASTERS_H <freetype/ftmm.h>
/**************************************************************************
*
* @macro:
* FT_SFNT_NAMES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which accesses embedded 'name' strings in
* SFNT-based font formats (i.e., TrueType and OpenType).
*
*/
#define FT_SFNT_NAMES_H <freetype/ftsnames.h>
/**************************************************************************
*
* @macro:
* FT_OPENTYPE_VALIDATE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which validates OpenType tables ('BASE',
* 'GDEF', 'GPOS', 'GSUB', 'JSTF').
*
*/
#define FT_OPENTYPE_VALIDATE_H <freetype/ftotval.h>
/**************************************************************************
*
* @macro:
* FT_GX_VALIDATE_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* optional FreeType~2 API which validates TrueTypeGX/AAT tables ('feat',
* 'mort', 'morx', 'bsln', 'just', 'kern', 'opbd', 'trak', 'prop').
*
*/
#define FT_GX_VALIDATE_H <freetype/ftgxval.h>
/**************************************************************************
*
* @macro:
* FT_PFR_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which accesses PFR-specific data.
*
*/
#define FT_PFR_H <freetype/ftpfr.h>
/**************************************************************************
*
* @macro:
* FT_STROKER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which provides functions to stroke outline paths.
*/
#define FT_STROKER_H <freetype/ftstroke.h>
/**************************************************************************
*
* @macro:
* FT_SYNTHESIS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs artificial obliquing and emboldening.
*/
#define FT_SYNTHESIS_H <freetype/ftsynth.h>
/**************************************************************************
*
* @macro:
* FT_FONT_FORMATS_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which provides functions specific to font formats.
*/
#define FT_FONT_FORMATS_H <freetype/ftfntfmt.h>
/* deprecated */
#define FT_XFREE86_H FT_FONT_FORMATS_H
/**************************************************************************
*
* @macro:
* FT_TRIGONOMETRY_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs trigonometric computations (e.g.,
* cosines and arc tangents).
*/
#define FT_TRIGONOMETRY_H <freetype/fttrigon.h>
/**************************************************************************
*
* @macro:
* FT_LCD_FILTER_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs color filtering for subpixel rendering.
*/
#define FT_LCD_FILTER_H <freetype/ftlcdfil.h>
/**************************************************************************
*
* @macro:
* FT_INCREMENTAL_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which performs incremental glyph loading.
*/
#define FT_INCREMENTAL_H <freetype/ftincrem.h>
/**************************************************************************
*
* @macro:
* FT_GASP_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which returns entries from the TrueType GASP table.
*/
#define FT_GASP_H <freetype/ftgasp.h>
/**************************************************************************
*
* @macro:
* FT_ADVANCES_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which returns individual and ranged glyph advances.
*/
#define FT_ADVANCES_H <freetype/ftadvanc.h>
/**************************************************************************
*
* @macro:
* FT_COLOR_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which handles the OpenType 'CPAL' table.
*/
#define FT_COLOR_H <freetype/ftcolor.h>
/**************************************************************************
*
* @macro:
* FT_OTSVG_H
*
* @description:
* A macro used in `#include` statements to name the file containing the
* FreeType~2 API which handles the OpenType 'SVG~' glyphs.
*/
#define FT_OTSVG_H <freetype/otsvg.h>
/* */
/* These header files don't need to be included by the user. */
#define FT_ERROR_DEFINITIONS_H <freetype/fterrdef.h>
#define FT_PARAMETER_TAGS_H <freetype/ftparams.h>
/* Deprecated macros. */
#define FT_UNPATENTED_HINTING_H <freetype/ftparams.h>
#define FT_TRUETYPE_UNPATENTED_H <freetype/ftparams.h>
/* `FT_CACHE_H` is the only header file needed for the cache subsystem. */
#define FT_CACHE_IMAGE_H FT_CACHE_H
#define FT_CACHE_SMALL_BITMAPS_H FT_CACHE_H
#define FT_CACHE_CHARMAP_H FT_CACHE_H
/* The internals of the cache sub-system are no longer exposed. We */
/* default to `FT_CACHE_H` at the moment just in case, but we know */
/* of no rogue client that uses them. */
/* */
#define FT_CACHE_MANAGER_H FT_CACHE_H
#define FT_CACHE_INTERNAL_MRU_H FT_CACHE_H
#define FT_CACHE_INTERNAL_MANAGER_H FT_CACHE_H
#define FT_CACHE_INTERNAL_CACHE_H FT_CACHE_H
#define FT_CACHE_INTERNAL_GLYPH_H FT_CACHE_H
#define FT_CACHE_INTERNAL_IMAGE_H FT_CACHE_H
#define FT_CACHE_INTERNAL_SBITS_H FT_CACHE_H
/* TODO(david): Move this section below to a different header */
#ifdef FT2_BUILD_LIBRARY
#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
/* We disable the warning `conditional expression is constant' here */
/* in order to compile cleanly with the maximum level of warnings. */
/* In particular, the warning complains about stuff like `while(0)' */
/* which is very useful in macro definitions. There is no benefit */
/* in having it enabled. */
#pragma warning( disable : 4127 )
#endif /* _MSC_VER */
#endif /* FT2_BUILD_LIBRARY */
#endif /* FTHEADER_H_ */
/* END */

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/*
* This file registers the FreeType modules compiled into the library.
*
* If you use GNU make, this file IS NOT USED! Instead, it is created in
* the objects directory (normally `<topdir>/objs/`) based on information
* from `<topdir>/modules.cfg`.
*
* Please read `docs/INSTALL.ANY` and `docs/CUSTOMIZE` how to compile
* FreeType without GNU make.
*
*/
FT_USE_MODULE( FT_Module_Class, autofit_module_class )
FT_USE_MODULE( FT_Driver_ClassRec, tt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t1_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, cff_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t1cid_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
FT_USE_MODULE( FT_Module_Class, psaux_module_class )
FT_USE_MODULE( FT_Module_Class, psnames_module_class )
FT_USE_MODULE( FT_Module_Class, pshinter_module_class )
FT_USE_MODULE( FT_Module_Class, sfnt_module_class )
FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_sdf_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_bitmap_sdf_renderer_class )
FT_USE_MODULE( FT_Renderer_Class, ft_svg_renderer_class )
/* EOF */

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Example/include/freetype/config/ftstdlib.h
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/****************************************************************************
*
* ftstdlib.h
*
* ANSI-specific library and header configuration file (specification
* only).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file is used to group all `#includes` to the ANSI~C library that
* FreeType normally requires. It also defines macros to rename the
* standard functions within the FreeType source code.
*
* Load a file which defines `FTSTDLIB_H_` before this one to override it.
*
*/
#ifndef FTSTDLIB_H_
#define FTSTDLIB_H_
#include <stddef.h>
#define ft_ptrdiff_t ptrdiff_t
/**************************************************************************
*
* integer limits
*
* `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of
* `int` and `long` in bytes at compile-time. So far, this works for all
* platforms the library has been tested on. We also check `ULLONG_MAX`
* to see whether we can use 64-bit `long long` later on.
*
* Note that on the extremely rare platforms that do not provide integer
* types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
* `int` is 36~bits), we do not make any guarantee about the correct
* behaviour of FreeType~2 with all fonts.
*
* In these cases, `ftconfig.h` will refuse to compile anyway with a
* message like 'couldn't find 32-bit type' or something similar.
*
*/
#include <limits.h>
#define FT_CHAR_BIT CHAR_BIT
#define FT_USHORT_MAX USHRT_MAX
#define FT_INT_MAX INT_MAX
#define FT_INT_MIN INT_MIN
#define FT_UINT_MAX UINT_MAX
#define FT_LONG_MIN LONG_MIN
#define FT_LONG_MAX LONG_MAX
#define FT_ULONG_MAX ULONG_MAX
#ifdef LLONG_MAX
#define FT_LLONG_MAX LLONG_MAX
#endif
#ifdef LLONG_MIN
#define FT_LLONG_MIN LLONG_MIN
#endif
#ifdef ULLONG_MAX
#define FT_ULLONG_MAX ULLONG_MAX
#endif
/**************************************************************************
*
* character and string processing
*
*/
#include <string.h>
#define ft_memchr memchr
#define ft_memcmp memcmp
#define ft_memcpy memcpy
#define ft_memmove memmove
#define ft_memset memset
#define ft_strcat strcat
#define ft_strcmp strcmp
#define ft_strcpy strcpy
#define ft_strlen strlen
#define ft_strncmp strncmp
#define ft_strncpy strncpy
#define ft_strrchr strrchr
#define ft_strstr strstr
/**************************************************************************
*
* file handling
*
*/
#include <stdio.h>
#define FT_FILE FILE
#define ft_fclose fclose
#define ft_fopen fopen
#define ft_fread fread
#define ft_fseek fseek
#define ft_ftell ftell
#define ft_snprintf snprintf
/**************************************************************************
*
* sorting
*
*/
#include <stdlib.h>
#define ft_qsort qsort
/**************************************************************************
*
* memory allocation
*
*/
#define ft_scalloc calloc
#define ft_sfree free
#define ft_smalloc malloc
#define ft_srealloc realloc
/**************************************************************************
*
* miscellaneous
*
*/
#define ft_strtol strtol
#define ft_getenv getenv
/**************************************************************************
*
* execution control
*
*/
#include <setjmp.h>
#define ft_jmp_buf jmp_buf /* note: this cannot be a typedef since */
/* `jmp_buf` is defined as a macro */
/* on certain platforms */
#define ft_longjmp longjmp
#define ft_setjmp( b ) setjmp( *(ft_jmp_buf*) &(b) ) /* same thing here */
/* The following is only used for debugging purposes, i.e., if */
/* `FT_DEBUG_LEVEL_ERROR` or `FT_DEBUG_LEVEL_TRACE` are defined. */
#include <stdarg.h>
#endif /* FTSTDLIB_H_ */
/* END */

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/****************************************************************************
*
* config/integer-types.h
*
* FreeType integer types definitions.
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FREETYPE_CONFIG_INTEGER_TYPES_H_
#define FREETYPE_CONFIG_INTEGER_TYPES_H_
/* There are systems (like the Texas Instruments 'C54x) where a `char` */
/* has 16~bits. ANSI~C says that `sizeof(char)` is always~1. Since an */
/* `int` has 16~bits also for this system, `sizeof(int)` gives~1 which */
/* is probably unexpected. */
/* */
/* `CHAR_BIT` (defined in `limits.h`) gives the number of bits in a */
/* `char` type. */
#ifndef FT_CHAR_BIT
#define FT_CHAR_BIT CHAR_BIT
#endif
#ifndef FT_SIZEOF_INT
/* The size of an `int` type. */
#if FT_UINT_MAX == 0xFFFFUL
#define FT_SIZEOF_INT ( 16 / FT_CHAR_BIT )
#elif FT_UINT_MAX == 0xFFFFFFFFUL
#define FT_SIZEOF_INT ( 32 / FT_CHAR_BIT )
#elif FT_UINT_MAX > 0xFFFFFFFFUL && FT_UINT_MAX == 0xFFFFFFFFFFFFFFFFUL
#define FT_SIZEOF_INT ( 64 / FT_CHAR_BIT )
#else
#error "Unsupported size of `int' type!"
#endif
#endif /* !defined(FT_SIZEOF_INT) */
#ifndef FT_SIZEOF_LONG
/* The size of a `long` type. A five-byte `long` (as used e.g. on the */
/* DM642) is recognized but avoided. */
#if FT_ULONG_MAX == 0xFFFFFFFFUL
#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFUL
#define FT_SIZEOF_LONG ( 32 / FT_CHAR_BIT )
#elif FT_ULONG_MAX > 0xFFFFFFFFUL && FT_ULONG_MAX == 0xFFFFFFFFFFFFFFFFUL
#define FT_SIZEOF_LONG ( 64 / FT_CHAR_BIT )
#else
#error "Unsupported size of `long' type!"
#endif
#endif /* !defined(FT_SIZEOF_LONG) */
#ifndef FT_SIZEOF_LONG_LONG
/* The size of a `long long` type if available */
#if defined( FT_ULLONG_MAX ) && FT_ULLONG_MAX >= 0xFFFFFFFFFFFFFFFFULL
#define FT_SIZEOF_LONG_LONG ( 64 / FT_CHAR_BIT )
#else
#define FT_SIZEOF_LONG_LONG 0
#endif
#endif /* !defined(FT_SIZEOF_LONG_LONG) */
/**************************************************************************
*
* @section:
* basic_types
*
*/
/**************************************************************************
*
* @type:
* FT_Int16
*
* @description:
* A typedef for a 16bit signed integer type.
*/
typedef signed short FT_Int16;
/**************************************************************************
*
* @type:
* FT_UInt16
*
* @description:
* A typedef for a 16bit unsigned integer type.
*/
typedef unsigned short FT_UInt16;
/* */
/* this #if 0 ... #endif clause is for documentation purposes */
#if 0
/**************************************************************************
*
* @type:
* FT_Int32
*
* @description:
* A typedef for a 32bit signed integer type. The size depends on the
* configuration.
*/
typedef signed XXX FT_Int32;
/**************************************************************************
*
* @type:
* FT_UInt32
*
* A typedef for a 32bit unsigned integer type. The size depends on the
* configuration.
*/
typedef unsigned XXX FT_UInt32;
/**************************************************************************
*
* @type:
* FT_Int64
*
* A typedef for a 64bit signed integer type. The size depends on the
* configuration. Only defined if there is real 64bit support;
* otherwise, it gets emulated with a structure (if necessary).
*/
typedef signed XXX FT_Int64;
/**************************************************************************
*
* @type:
* FT_UInt64
*
* A typedef for a 64bit unsigned integer type. The size depends on the
* configuration. Only defined if there is real 64bit support;
* otherwise, it gets emulated with a structure (if necessary).
*/
typedef unsigned XXX FT_UInt64;
/* */
#endif
#if FT_SIZEOF_INT == ( 32 / FT_CHAR_BIT )
typedef signed int FT_Int32;
typedef unsigned int FT_UInt32;
#elif FT_SIZEOF_LONG == ( 32 / FT_CHAR_BIT )
typedef signed long FT_Int32;
typedef unsigned long FT_UInt32;
#else
#error "no 32bit type found -- please check your configuration files"
#endif
/* look up an integer type that is at least 32~bits */
#if FT_SIZEOF_INT >= ( 32 / FT_CHAR_BIT )
typedef int FT_Fast;
typedef unsigned int FT_UFast;
#elif FT_SIZEOF_LONG >= ( 32 / FT_CHAR_BIT )
typedef long FT_Fast;
typedef unsigned long FT_UFast;
#endif
/* determine whether we have a 64-bit integer type */
#if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
#define FT_INT64 long
#define FT_UINT64 unsigned long
#elif FT_SIZEOF_LONG_LONG >= ( 64 / FT_CHAR_BIT )
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
/**************************************************************************
*
* A 64-bit data type may create compilation problems if you compile in
* strict ANSI mode. To avoid them, we disable other 64-bit data types if
* `__STDC__` is defined. You can however ignore this rule by defining the
* `FT_CONFIG_OPTION_FORCE_INT64` configuration macro.
*/
#elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
#if defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
/* this compiler provides the `__int64` type */
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
#elif defined( __BORLANDC__ ) /* Borland C++ */
/* XXXX: We should probably check the value of `__BORLANDC__` in order */
/* to test the compiler version. */
/* this compiler provides the `__int64` type */
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
#elif defined( __WATCOMC__ ) && __WATCOMC__ >= 1100 /* Watcom C++ */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __GNUC__ )
/* GCC provides the `long long` type */
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#endif /* !__STDC__ */
#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
#ifdef FT_INT64
typedef FT_INT64 FT_Int64;
typedef FT_UINT64 FT_UInt64;
#endif
#endif /* FREETYPE_CONFIG_INTEGER_TYPES_H_ */

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/****************************************************************************
*
* config/mac-support.h
*
* Mac/OS X support configuration header.
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FREETYPE_CONFIG_MAC_SUPPORT_H_
#define FREETYPE_CONFIG_MAC_SUPPORT_H_
/**************************************************************************
*
* Mac support
*
* This is the only necessary change, so it is defined here instead
* providing a new configuration file.
*/
#if defined( __APPLE__ ) || ( defined( __MWERKS__ ) && defined( macintosh ) )
/* No Carbon frameworks for 64bit 10.4.x. */
/* `AvailabilityMacros.h` is available since Mac OS X 10.2, */
/* so guess the system version by maximum errno before inclusion. */
#include <errno.h>
#ifdef ECANCELED /* defined since 10.2 */
#include "AvailabilityMacros.h"
#endif
#if defined( __LP64__ ) && \
( MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_4 )
#undef FT_MACINTOSH
#endif
#elif defined( __SC__ ) || defined( __MRC__ )
/* Classic MacOS compilers */
#include "ConditionalMacros.h"
#if TARGET_OS_MAC
#define FT_MACINTOSH 1
#endif
#endif /* Mac support */
#endif /* FREETYPE_CONFIG_MAC_SUPPORT_H_ */

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/****************************************************************************
*
* config/public-macros.h
*
* Define a set of compiler macros used in public FreeType headers.
*
* Copyright (C) 2020-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/*
* The definitions in this file are used by the public FreeType headers
* and thus should be considered part of the public API.
*
* Other compiler-specific macro definitions that are not exposed by the
* FreeType API should go into
* `include/freetype/internal/compiler-macros.h` instead.
*/
#ifndef FREETYPE_CONFIG_PUBLIC_MACROS_H_
#define FREETYPE_CONFIG_PUBLIC_MACROS_H_
/*
* `FT_BEGIN_HEADER` and `FT_END_HEADER` might have already been defined
* by `freetype/config/ftheader.h`, but we don't want to include this
* header here, so redefine the macros here only when needed. Their
* definition is very stable, so keeping them in sync with the ones in the
* header should not be a maintenance issue.
*/
#ifndef FT_BEGIN_HEADER
#ifdef __cplusplus
#define FT_BEGIN_HEADER extern "C" {
#else
#define FT_BEGIN_HEADER /* empty */
#endif
#endif /* FT_BEGIN_HEADER */
#ifndef FT_END_HEADER
#ifdef __cplusplus
#define FT_END_HEADER }
#else
#define FT_END_HEADER /* empty */
#endif
#endif /* FT_END_HEADER */
FT_BEGIN_HEADER
/*
* Mark a function declaration as public. This ensures it will be
* properly exported to client code. Place this before a function
* declaration.
*
* NOTE: This macro should be considered an internal implementation
* detail, and not part of the FreeType API. It is only defined here
* because it is needed by `FT_EXPORT`.
*/
/* Visual C, mingw */
#if defined( _WIN32 )
#if defined( FT2_BUILD_LIBRARY ) && defined( DLL_EXPORT )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllexport )
#elif defined( DLL_IMPORT )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __declspec( dllimport )
#endif
/* gcc, clang */
#elif ( defined( __GNUC__ ) && __GNUC__ >= 4 ) || defined( __clang__ )
#define FT_PUBLIC_FUNCTION_ATTRIBUTE \
__attribute__(( visibility( "default" ) ))
/* Sun */
#elif defined( __SUNPRO_C ) && __SUNPRO_C >= 0x550
#define FT_PUBLIC_FUNCTION_ATTRIBUTE __global
#endif
#ifndef FT_PUBLIC_FUNCTION_ATTRIBUTE
#define FT_PUBLIC_FUNCTION_ATTRIBUTE /* empty */
#endif
/*
* Define a public FreeType API function. This ensures it is properly
* exported or imported at build time. The macro parameter is the
* function's return type as in:
*
* FT_EXPORT( FT_Bool )
* FT_Object_Method( FT_Object obj,
* ... );
*
* NOTE: This requires that all `FT_EXPORT` uses are inside
* `FT_BEGIN_HEADER ... FT_END_HEADER` blocks. This guarantees that the
* functions are exported with C linkage, even when the header is included
* by a C++ source file.
*/
#define FT_EXPORT( x ) FT_PUBLIC_FUNCTION_ATTRIBUTE extern x
/*
* `FT_UNUSED` indicates that a given parameter is not used -- this is
* only used to get rid of unpleasant compiler warnings.
*
* Technically, this was not meant to be part of the public API, but some
* third-party code depends on it.
*/
#ifndef FT_UNUSED
#define FT_UNUSED( arg ) ( (arg) = (arg) )
#endif
/*
* Support for casts in both C and C++.
*/
#ifdef __cplusplus
#define FT_STATIC_CAST( type, var ) static_cast<type>(var)
#define FT_REINTERPRET_CAST( type, var ) reinterpret_cast<type>(var)
#define FT_STATIC_BYTE_CAST( type, var ) \
static_cast<type>( static_cast<unsigned char>( var ) )
#else
#define FT_STATIC_CAST( type, var ) (type)(var)
#define FT_REINTERPRET_CAST( type, var ) (type)(var)
#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var)
#endif
FT_END_HEADER
#endif /* FREETYPE_CONFIG_PUBLIC_MACROS_H_ */

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/****************************************************************************
*
* ftadvanc.h
*
* Quick computation of advance widths (specification only).
*
* Copyright (C) 2008-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTADVANC_H_
#define FTADVANC_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* quick_advance
*
* @title:
* Quick retrieval of advance values
*
* @abstract:
* Retrieve horizontal and vertical advance values without processing
* glyph outlines, if possible.
*
* @description:
* This section contains functions to quickly extract advance values
* without handling glyph outlines, if possible.
*
* @order:
* FT_Get_Advance
* FT_Get_Advances
*
*/
/**************************************************************************
*
* @enum:
* FT_ADVANCE_FLAG_FAST_ONLY
*
* @description:
* A bit-flag to be OR-ed with the `flags` parameter of the
* @FT_Get_Advance and @FT_Get_Advances functions.
*
* If set, it indicates that you want these functions to fail if the
* corresponding hinting mode or font driver doesn't allow for very quick
* advance computation.
*
* Typically, glyphs that are either unscaled, unhinted, bitmapped, or
* light-hinted can have their advance width computed very quickly.
*
* Normal and bytecode hinted modes that require loading, scaling, and
* hinting of the glyph outline, are extremely slow by comparison.
*/
#define FT_ADVANCE_FLAG_FAST_ONLY 0x20000000L
/**************************************************************************
*
* @function:
* FT_Get_Advance
*
* @description:
* Retrieve the advance value of a given glyph outline in an @FT_Face.
*
* @input:
* face ::
* The source @FT_Face handle.
*
* gindex ::
* The glyph index.
*
* load_flags ::
* A set of bit flags similar to those used when calling
* @FT_Load_Glyph, used to determine what kind of advances you need.
*
* @output:
* padvance ::
* The advance value. If scaling is performed (based on the value of
* `load_flags`), the advance value is in 16.16 format. Otherwise, it
* is in font units.
*
* If @FT_LOAD_VERTICAL_LAYOUT is set, this is the vertical advance
* corresponding to a vertical layout. Otherwise, it is the horizontal
* advance in a horizontal layout.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
* the corresponding font backend doesn't have a quick way to retrieve
* the advances.
*
* A scaled advance is returned in 16.16 format but isn't transformed by
* the affine transformation specified by @FT_Set_Transform.
*/
FT_EXPORT( FT_Error )
FT_Get_Advance( FT_Face face,
FT_UInt gindex,
FT_Int32 load_flags,
FT_Fixed *padvance );
/**************************************************************************
*
* @function:
* FT_Get_Advances
*
* @description:
* Retrieve the advance values of several glyph outlines in an @FT_Face.
*
* @input:
* face ::
* The source @FT_Face handle.
*
* start ::
* The first glyph index.
*
* count ::
* The number of advance values you want to retrieve.
*
* load_flags ::
* A set of bit flags similar to those used when calling
* @FT_Load_Glyph.
*
* @output:
* padvance ::
* The advance values. This array, to be provided by the caller, must
* contain at least `count` elements.
*
* If scaling is performed (based on the value of `load_flags`), the
* advance values are in 16.16 format. Otherwise, they are in font
* units.
*
* If @FT_LOAD_VERTICAL_LAYOUT is set, these are the vertical advances
* corresponding to a vertical layout. Otherwise, they are the
* horizontal advances in a horizontal layout.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* This function may fail if you use @FT_ADVANCE_FLAG_FAST_ONLY and if
* the corresponding font backend doesn't have a quick way to retrieve
* the advances.
*
* Scaled advances are returned in 16.16 format but aren't transformed by
* the affine transformation specified by @FT_Set_Transform.
*/
FT_EXPORT( FT_Error )
FT_Get_Advances( FT_Face face,
FT_UInt start,
FT_UInt count,
FT_Int32 load_flags,
FT_Fixed *padvances );
/* */
FT_END_HEADER
#endif /* FTADVANC_H_ */
/* END */

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/****************************************************************************
*
* ftbbox.h
*
* FreeType exact bbox computation (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This component has a _single_ role: to compute exact outline bounding
* boxes.
*
* It is separated from the rest of the engine for various technical
* reasons. It may well be integrated in 'ftoutln' later.
*
*/
#ifndef FTBBOX_H_
#define FTBBOX_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* outline_processing
*
*/
/**************************************************************************
*
* @function:
* FT_Outline_Get_BBox
*
* @description:
* Compute the exact bounding box of an outline. This is slower than
* computing the control box. However, it uses an advanced algorithm
* that returns _very_ quickly when the two boxes coincide. Otherwise,
* the outline Bezier arcs are traversed to extract their extrema.
*
* @input:
* outline ::
* A pointer to the source outline.
*
* @output:
* abbox ::
* The outline's exact bounding box.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the font is tricky and the glyph has been loaded with
* @FT_LOAD_NO_SCALE, the resulting BBox is meaningless. To get
* reasonable values for the BBox it is necessary to load the glyph at a
* large ppem value (so that the hinting instructions can properly shift
* and scale the subglyphs), then extracting the BBox, which can be
* eventually converted back to font units.
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_BBox( FT_Outline* outline,
FT_BBox *abbox );
/* */
FT_END_HEADER
#endif /* FTBBOX_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

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Example/include/freetype/ftbdf.h
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/****************************************************************************
*
* ftbdf.h
*
* FreeType API for accessing BDF-specific strings (specification).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTBDF_H_
#define FTBDF_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bdf_fonts
*
* @title:
* BDF and PCF Files
*
* @abstract:
* BDF and PCF specific API.
*
* @description:
* This section contains the declaration of functions specific to BDF and
* PCF fonts.
*
*/
/**************************************************************************
*
* @enum:
* BDF_PropertyType
*
* @description:
* A list of BDF property types.
*
* @values:
* BDF_PROPERTY_TYPE_NONE ::
* Value~0 is used to indicate a missing property.
*
* BDF_PROPERTY_TYPE_ATOM ::
* Property is a string atom.
*
* BDF_PROPERTY_TYPE_INTEGER ::
* Property is a 32-bit signed integer.
*
* BDF_PROPERTY_TYPE_CARDINAL ::
* Property is a 32-bit unsigned integer.
*/
typedef enum BDF_PropertyType_
{
BDF_PROPERTY_TYPE_NONE = 0,
BDF_PROPERTY_TYPE_ATOM = 1,
BDF_PROPERTY_TYPE_INTEGER = 2,
BDF_PROPERTY_TYPE_CARDINAL = 3
} BDF_PropertyType;
/**************************************************************************
*
* @type:
* BDF_Property
*
* @description:
* A handle to a @BDF_PropertyRec structure to model a given BDF/PCF
* property.
*/
typedef struct BDF_PropertyRec_* BDF_Property;
/**************************************************************************
*
* @struct:
* BDF_PropertyRec
*
* @description:
* This structure models a given BDF/PCF property.
*
* @fields:
* type ::
* The property type.
*
* u.atom ::
* The atom string, if type is @BDF_PROPERTY_TYPE_ATOM. May be
* `NULL`, indicating an empty string.
*
* u.integer ::
* A signed integer, if type is @BDF_PROPERTY_TYPE_INTEGER.
*
* u.cardinal ::
* An unsigned integer, if type is @BDF_PROPERTY_TYPE_CARDINAL.
*/
typedef struct BDF_PropertyRec_
{
BDF_PropertyType type;
union {
const char* atom;
FT_Int32 integer;
FT_UInt32 cardinal;
} u;
} BDF_PropertyRec;
/**************************************************************************
*
* @function:
* FT_Get_BDF_Charset_ID
*
* @description:
* Retrieve a BDF font character set identity, according to the BDF
* specification.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* acharset_encoding ::
* Charset encoding, as a C~string, owned by the face.
*
* acharset_registry ::
* Charset registry, as a C~string, owned by the face.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with BDF faces, returning an error otherwise.
*/
FT_EXPORT( FT_Error )
FT_Get_BDF_Charset_ID( FT_Face face,
const char* *acharset_encoding,
const char* *acharset_registry );
/**************************************************************************
*
* @function:
* FT_Get_BDF_Property
*
* @description:
* Retrieve a BDF property from a BDF or PCF font file.
*
* @input:
* face ::
* A handle to the input face.
*
* name ::
* The property name.
*
* @output:
* aproperty ::
* The property.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function works with BDF _and_ PCF fonts. It returns an error
* otherwise. It also returns an error if the property is not in the
* font.
*
* A 'property' is a either key-value pair within the STARTPROPERTIES
* ... ENDPROPERTIES block of a BDF font or a key-value pair from the
* `info->props` array within a `FontRec` structure of a PCF font.
*
* Integer properties are always stored as 'signed' within PCF fonts;
* consequently, @BDF_PROPERTY_TYPE_CARDINAL is a possible return value
* for BDF fonts only.
*
* In case of error, `aproperty->type` is always set to
* @BDF_PROPERTY_TYPE_NONE.
*/
FT_EXPORT( FT_Error )
FT_Get_BDF_Property( FT_Face face,
const char* prop_name,
BDF_PropertyRec *aproperty );
/* */
FT_END_HEADER
#endif /* FTBDF_H_ */
/* END */

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Example/include/freetype/ftbitmap.h
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/****************************************************************************
*
* ftbitmap.h
*
* FreeType utility functions for bitmaps (specification).
*
* Copyright (C) 2004-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTBITMAP_H_
#define FTBITMAP_H_
#include <freetype/freetype.h>
#include <freetype/ftcolor.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bitmap_handling
*
* @title:
* Bitmap Handling
*
* @abstract:
* Handling FT_Bitmap objects.
*
* @description:
* This section contains functions for handling @FT_Bitmap objects,
* automatically adjusting the target's bitmap buffer size as needed.
*
* Note that none of the functions changes the bitmap's 'flow' (as
* indicated by the sign of the `pitch` field in @FT_Bitmap).
*
* To set the flow, assign an appropriate positive or negative value to
* the `pitch` field of the target @FT_Bitmap object after calling
* @FT_Bitmap_Init but before calling any of the other functions
* described here.
*/
/**************************************************************************
*
* @function:
* FT_Bitmap_Init
*
* @description:
* Initialize a pointer to an @FT_Bitmap structure.
*
* @inout:
* abitmap ::
* A pointer to the bitmap structure.
*
* @note:
* A deprecated name for the same function is `FT_Bitmap_New`.
*/
FT_EXPORT( void )
FT_Bitmap_Init( FT_Bitmap *abitmap );
/* deprecated */
FT_EXPORT( void )
FT_Bitmap_New( FT_Bitmap *abitmap );
/**************************************************************************
*
* @function:
* FT_Bitmap_Copy
*
* @description:
* Copy a bitmap into another one.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* A handle to the source bitmap.
*
* @output:
* target ::
* A handle to the target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Copy( FT_Library library,
const FT_Bitmap *source,
FT_Bitmap *target );
/**************************************************************************
*
* @function:
* FT_Bitmap_Embolden
*
* @description:
* Embolden a bitmap. The new bitmap will be about `xStrength` pixels
* wider and `yStrength` pixels higher. The left and bottom borders are
* kept unchanged.
*
* @input:
* library ::
* A handle to a library object.
*
* xStrength ::
* How strong the glyph is emboldened horizontally. Expressed in 26.6
* pixel format.
*
* yStrength ::
* How strong the glyph is emboldened vertically. Expressed in 26.6
* pixel format.
*
* @inout:
* bitmap ::
* A handle to the target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The current implementation restricts `xStrength` to be less than or
* equal to~8 if bitmap is of pixel_mode @FT_PIXEL_MODE_MONO.
*
* If you want to embolden the bitmap owned by a @FT_GlyphSlotRec, you
* should call @FT_GlyphSlot_Own_Bitmap on the slot first.
*
* Bitmaps in @FT_PIXEL_MODE_GRAY2 and @FT_PIXEL_MODE_GRAY@ format are
* converted to @FT_PIXEL_MODE_GRAY format (i.e., 8bpp).
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Embolden( FT_Library library,
FT_Bitmap* bitmap,
FT_Pos xStrength,
FT_Pos yStrength );
/**************************************************************************
*
* @function:
* FT_Bitmap_Convert
*
* @description:
* Convert a bitmap object with depth 1bpp, 2bpp, 4bpp, 8bpp or 32bpp to
* a bitmap object with depth 8bpp, making the number of used bytes per
* line (a.k.a. the 'pitch') a multiple of `alignment`.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* The source bitmap.
*
* alignment ::
* The pitch of the bitmap is a multiple of this argument. Common
* values are 1, 2, or 4.
*
* @output:
* target ::
* The target bitmap.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* It is possible to call @FT_Bitmap_Convert multiple times without
* calling @FT_Bitmap_Done (the memory is simply reallocated).
*
* Use @FT_Bitmap_Done to finally remove the bitmap object.
*
* The `library` argument is taken to have access to FreeType's memory
* handling functions.
*
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Convert( FT_Library library,
const FT_Bitmap *source,
FT_Bitmap *target,
FT_Int alignment );
/**************************************************************************
*
* @function:
* FT_Bitmap_Blend
*
* @description:
* Blend a bitmap onto another bitmap, using a given color.
*
* @input:
* library ::
* A handle to a library object.
*
* source ::
* The source bitmap, which can have any @FT_Pixel_Mode format.
*
* source_offset ::
* The offset vector to the upper left corner of the source bitmap in
* 26.6 pixel format. It should represent an integer offset; the
* function will set the lowest six bits to zero to enforce that.
*
* color ::
* The color used to draw `source` onto `target`.
*
* @inout:
* target ::
* A handle to an `FT_Bitmap` object. It should be either initialized
* as empty with a call to @FT_Bitmap_Init, or it should be of type
* @FT_PIXEL_MODE_BGRA.
*
* atarget_offset ::
* The offset vector to the upper left corner of the target bitmap in
* 26.6 pixel format. It should represent an integer offset; the
* function will set the lowest six bits to zero to enforce that.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function doesn't perform clipping.
*
* The bitmap in `target` gets allocated or reallocated as needed; the
* vector `atarget_offset` is updated accordingly.
*
* In case of allocation or reallocation, the bitmap's pitch is set to
* `4 * width`. Both `source` and `target` must have the same bitmap
* flow (as indicated by the sign of the `pitch` field).
*
* `source->buffer` and `target->buffer` must neither be equal nor
* overlap.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Blend( FT_Library library,
const FT_Bitmap* source,
const FT_Vector source_offset,
FT_Bitmap* target,
FT_Vector *atarget_offset,
FT_Color color );
/**************************************************************************
*
* @function:
* FT_GlyphSlot_Own_Bitmap
*
* @description:
* Make sure that a glyph slot owns `slot->bitmap`.
*
* @input:
* slot ::
* The glyph slot.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function is to be used in combination with @FT_Bitmap_Embolden.
*/
FT_EXPORT( FT_Error )
FT_GlyphSlot_Own_Bitmap( FT_GlyphSlot slot );
/**************************************************************************
*
* @function:
* FT_Bitmap_Done
*
* @description:
* Destroy a bitmap object initialized with @FT_Bitmap_Init.
*
* @input:
* library ::
* A handle to a library object.
*
* bitmap ::
* The bitmap object to be freed.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `library` argument is taken to have access to FreeType's memory
* handling functions.
*/
FT_EXPORT( FT_Error )
FT_Bitmap_Done( FT_Library library,
FT_Bitmap *bitmap );
/* */
FT_END_HEADER
#endif /* FTBITMAP_H_ */
/* END */

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/****************************************************************************
*
* ftbzip2.h
*
* Bzip2-compressed stream support.
*
* Copyright (C) 2010-2023 by
* Joel Klinghed.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTBZIP2_H_
#define FTBZIP2_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* bzip2
*
* @title:
* BZIP2 Streams
*
* @abstract:
* Using bzip2-compressed font files.
*
* @description:
* In certain builds of the library, bzip2 compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a bzip2 compressed
* stream from it and re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of Bzip2-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenBzip2
*
* @description:
* Open a new stream to parse bzip2-compressed font files. This is
* mainly used to support the compressed `*.pcf.bz2` fonts that come with
* XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with bzip2 support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenBzip2( FT_Stream stream,
FT_Stream source );
/* */
FT_END_HEADER
#endif /* FTBZIP2_H_ */
/* END */

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/****************************************************************************
*
* This file defines the structure of the FreeType reference.
* It is used by the python script that generates the HTML files.
*
*/
/**************************************************************************
*
* @chapter:
* general_remarks
*
* @title:
* General Remarks
*
* @sections:
* preamble
* header_inclusion
* user_allocation
*
*/
/**************************************************************************
*
* @chapter:
* core_api
*
* @title:
* Core API
*
* @sections:
* basic_types
* library_setup
* face_creation
* font_testing_macros
* sizing_and_scaling
* glyph_retrieval
* character_mapping
* information_retrieval
* other_api_data
*
*/
/**************************************************************************
*
* @chapter:
* extended_api
*
* @title:
* Extended API
*
* @sections:
* glyph_variants
* color_management
* layer_management
* glyph_management
* mac_specific
* sizes_management
* header_file_macros
*
*/
/**************************************************************************
*
* @chapter:
* format_specific
*
* @title:
* Format-Specific API
*
* @sections:
* multiple_masters
* truetype_tables
* type1_tables
* sfnt_names
* bdf_fonts
* cid_fonts
* pfr_fonts
* winfnt_fonts
* svg_fonts
* font_formats
* gasp_table
*
*/
/**************************************************************************
*
* @chapter:
* module_specific
*
* @title:
* Controlling FreeType Modules
*
* @sections:
* auto_hinter
* cff_driver
* t1_cid_driver
* tt_driver
* pcf_driver
* ot_svg_driver
* properties
* parameter_tags
* lcd_rendering
*
*/
/**************************************************************************
*
* @chapter:
* cache_subsystem
*
* @title:
* Cache Sub-System
*
* @sections:
* cache_subsystem
*
*/
/**************************************************************************
*
* @chapter:
* support_api
*
* @title:
* Support API
*
* @sections:
* computations
* list_processing
* outline_processing
* quick_advance
* bitmap_handling
* raster
* glyph_stroker
* system_interface
* module_management
* gzip
* lzw
* bzip2
* debugging_apis
*
*/
/**************************************************************************
*
* @chapter:
* error_codes
*
* @title:
* Error Codes
*
* @sections:
* error_enumerations
* error_code_values
*
*/
/* END */

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/****************************************************************************
*
* ftcid.h
*
* FreeType API for accessing CID font information (specification).
*
* Copyright (C) 2007-2023 by
* Dereg Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTCID_H_
#define FTCID_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* cid_fonts
*
* @title:
* CID Fonts
*
* @abstract:
* CID-keyed font-specific API.
*
* @description:
* This section contains the declaration of CID-keyed font-specific
* functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_CID_Registry_Ordering_Supplement
*
* @description:
* Retrieve the Registry/Ordering/Supplement triple (also known as the
* "R/O/S") from a CID-keyed font.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* registry ::
* The registry, as a C~string, owned by the face.
*
* ordering ::
* The ordering, as a C~string, owned by the face.
*
* supplement ::
* The supplement.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces, returning an error
* otherwise.
*
* @since:
* 2.3.6
*/
FT_EXPORT( FT_Error )
FT_Get_CID_Registry_Ordering_Supplement( FT_Face face,
const char* *registry,
const char* *ordering,
FT_Int *supplement );
/**************************************************************************
*
* @function:
* FT_Get_CID_Is_Internally_CID_Keyed
*
* @description:
* Retrieve the type of the input face, CID keyed or not. In contrast
* to the @FT_IS_CID_KEYED macro this function returns successfully also
* for CID-keyed fonts in an SFNT wrapper.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* is_cid ::
* The type of the face as an @FT_Bool.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces and OpenType fonts, returning
* an error otherwise.
*
* @since:
* 2.3.9
*/
FT_EXPORT( FT_Error )
FT_Get_CID_Is_Internally_CID_Keyed( FT_Face face,
FT_Bool *is_cid );
/**************************************************************************
*
* @function:
* FT_Get_CID_From_Glyph_Index
*
* @description:
* Retrieve the CID of the input glyph index.
*
* @input:
* face ::
* A handle to the input face.
*
* glyph_index ::
* The input glyph index.
*
* @output:
* cid ::
* The CID as an @FT_UInt.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with CID faces and OpenType fonts, returning
* an error otherwise.
*
* @since:
* 2.3.9
*/
FT_EXPORT( FT_Error )
FT_Get_CID_From_Glyph_Index( FT_Face face,
FT_UInt glyph_index,
FT_UInt *cid );
/* */
FT_END_HEADER
#endif /* FTCID_H_ */
/* END */

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/****************************************************************************
*
* fterrdef.h
*
* FreeType error codes (specification).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* @section:
* error_code_values
*
* @title:
* Error Code Values
*
* @abstract:
* All possible error codes returned by FreeType functions.
*
* @description:
* The list below is taken verbatim from the file `fterrdef.h` (loaded
* automatically by including `FT_FREETYPE_H`). The first argument of the
* `FT_ERROR_DEF_` macro is the error label; by default, the prefix
* `FT_Err_` gets added so that you get error names like
* `FT_Err_Cannot_Open_Resource`. The second argument is the error code,
* and the last argument an error string, which is not used by FreeType.
*
* Within your application you should **only** use error names and
* **never** its numeric values! The latter might (and actually do)
* change in forthcoming FreeType versions.
*
* Macro `FT_NOERRORDEF_` defines `FT_Err_Ok`, which is always zero. See
* the 'Error Enumerations' subsection how to automatically generate a
* list of error strings.
*
*/
/**************************************************************************
*
* @enum:
* FT_Err_XXX
*
*/
/* generic errors */
FT_NOERRORDEF_( Ok, 0x00,
"no error" )
FT_ERRORDEF_( Cannot_Open_Resource, 0x01,
"cannot open resource" )
FT_ERRORDEF_( Unknown_File_Format, 0x02,
"unknown file format" )
FT_ERRORDEF_( Invalid_File_Format, 0x03,
"broken file" )
FT_ERRORDEF_( Invalid_Version, 0x04,
"invalid FreeType version" )
FT_ERRORDEF_( Lower_Module_Version, 0x05,
"module version is too low" )
FT_ERRORDEF_( Invalid_Argument, 0x06,
"invalid argument" )
FT_ERRORDEF_( Unimplemented_Feature, 0x07,
"unimplemented feature" )
FT_ERRORDEF_( Invalid_Table, 0x08,
"broken table" )
FT_ERRORDEF_( Invalid_Offset, 0x09,
"broken offset within table" )
FT_ERRORDEF_( Array_Too_Large, 0x0A,
"array allocation size too large" )
FT_ERRORDEF_( Missing_Module, 0x0B,
"missing module" )
FT_ERRORDEF_( Missing_Property, 0x0C,
"missing property" )
/* glyph/character errors */
FT_ERRORDEF_( Invalid_Glyph_Index, 0x10,
"invalid glyph index" )
FT_ERRORDEF_( Invalid_Character_Code, 0x11,
"invalid character code" )
FT_ERRORDEF_( Invalid_Glyph_Format, 0x12,
"unsupported glyph image format" )
FT_ERRORDEF_( Cannot_Render_Glyph, 0x13,
"cannot render this glyph format" )
FT_ERRORDEF_( Invalid_Outline, 0x14,
"invalid outline" )
FT_ERRORDEF_( Invalid_Composite, 0x15,
"invalid composite glyph" )
FT_ERRORDEF_( Too_Many_Hints, 0x16,
"too many hints" )
FT_ERRORDEF_( Invalid_Pixel_Size, 0x17,
"invalid pixel size" )
FT_ERRORDEF_( Invalid_SVG_Document, 0x18,
"invalid SVG document" )
/* handle errors */
FT_ERRORDEF_( Invalid_Handle, 0x20,
"invalid object handle" )
FT_ERRORDEF_( Invalid_Library_Handle, 0x21,
"invalid library handle" )
FT_ERRORDEF_( Invalid_Driver_Handle, 0x22,
"invalid module handle" )
FT_ERRORDEF_( Invalid_Face_Handle, 0x23,
"invalid face handle" )
FT_ERRORDEF_( Invalid_Size_Handle, 0x24,
"invalid size handle" )
FT_ERRORDEF_( Invalid_Slot_Handle, 0x25,
"invalid glyph slot handle" )
FT_ERRORDEF_( Invalid_CharMap_Handle, 0x26,
"invalid charmap handle" )
FT_ERRORDEF_( Invalid_Cache_Handle, 0x27,
"invalid cache manager handle" )
FT_ERRORDEF_( Invalid_Stream_Handle, 0x28,
"invalid stream handle" )
/* driver errors */
FT_ERRORDEF_( Too_Many_Drivers, 0x30,
"too many modules" )
FT_ERRORDEF_( Too_Many_Extensions, 0x31,
"too many extensions" )
/* memory errors */
FT_ERRORDEF_( Out_Of_Memory, 0x40,
"out of memory" )
FT_ERRORDEF_( Unlisted_Object, 0x41,
"unlisted object" )
/* stream errors */
FT_ERRORDEF_( Cannot_Open_Stream, 0x51,
"cannot open stream" )
FT_ERRORDEF_( Invalid_Stream_Seek, 0x52,
"invalid stream seek" )
FT_ERRORDEF_( Invalid_Stream_Skip, 0x53,
"invalid stream skip" )
FT_ERRORDEF_( Invalid_Stream_Read, 0x54,
"invalid stream read" )
FT_ERRORDEF_( Invalid_Stream_Operation, 0x55,
"invalid stream operation" )
FT_ERRORDEF_( Invalid_Frame_Operation, 0x56,
"invalid frame operation" )
FT_ERRORDEF_( Nested_Frame_Access, 0x57,
"nested frame access" )
FT_ERRORDEF_( Invalid_Frame_Read, 0x58,
"invalid frame read" )
/* raster errors */
FT_ERRORDEF_( Raster_Uninitialized, 0x60,
"raster uninitialized" )
FT_ERRORDEF_( Raster_Corrupted, 0x61,
"raster corrupted" )
FT_ERRORDEF_( Raster_Overflow, 0x62,
"raster overflow" )
FT_ERRORDEF_( Raster_Negative_Height, 0x63,
"negative height while rastering" )
/* cache errors */
FT_ERRORDEF_( Too_Many_Caches, 0x70,
"too many registered caches" )
/* TrueType and SFNT errors */
FT_ERRORDEF_( Invalid_Opcode, 0x80,
"invalid opcode" )
FT_ERRORDEF_( Too_Few_Arguments, 0x81,
"too few arguments" )
FT_ERRORDEF_( Stack_Overflow, 0x82,
"stack overflow" )
FT_ERRORDEF_( Code_Overflow, 0x83,
"code overflow" )
FT_ERRORDEF_( Bad_Argument, 0x84,
"bad argument" )
FT_ERRORDEF_( Divide_By_Zero, 0x85,
"division by zero" )
FT_ERRORDEF_( Invalid_Reference, 0x86,
"invalid reference" )
FT_ERRORDEF_( Debug_OpCode, 0x87,
"found debug opcode" )
FT_ERRORDEF_( ENDF_In_Exec_Stream, 0x88,
"found ENDF opcode in execution stream" )
FT_ERRORDEF_( Nested_DEFS, 0x89,
"nested DEFS" )
FT_ERRORDEF_( Invalid_CodeRange, 0x8A,
"invalid code range" )
FT_ERRORDEF_( Execution_Too_Long, 0x8B,
"execution context too long" )
FT_ERRORDEF_( Too_Many_Function_Defs, 0x8C,
"too many function definitions" )
FT_ERRORDEF_( Too_Many_Instruction_Defs, 0x8D,
"too many instruction definitions" )
FT_ERRORDEF_( Table_Missing, 0x8E,
"SFNT font table missing" )
FT_ERRORDEF_( Horiz_Header_Missing, 0x8F,
"horizontal header (hhea) table missing" )
FT_ERRORDEF_( Locations_Missing, 0x90,
"locations (loca) table missing" )
FT_ERRORDEF_( Name_Table_Missing, 0x91,
"name table missing" )
FT_ERRORDEF_( CMap_Table_Missing, 0x92,
"character map (cmap) table missing" )
FT_ERRORDEF_( Hmtx_Table_Missing, 0x93,
"horizontal metrics (hmtx) table missing" )
FT_ERRORDEF_( Post_Table_Missing, 0x94,
"PostScript (post) table missing" )
FT_ERRORDEF_( Invalid_Horiz_Metrics, 0x95,
"invalid horizontal metrics" )
FT_ERRORDEF_( Invalid_CharMap_Format, 0x96,
"invalid character map (cmap) format" )
FT_ERRORDEF_( Invalid_PPem, 0x97,
"invalid ppem value" )
FT_ERRORDEF_( Invalid_Vert_Metrics, 0x98,
"invalid vertical metrics" )
FT_ERRORDEF_( Could_Not_Find_Context, 0x99,
"could not find context" )
FT_ERRORDEF_( Invalid_Post_Table_Format, 0x9A,
"invalid PostScript (post) table format" )
FT_ERRORDEF_( Invalid_Post_Table, 0x9B,
"invalid PostScript (post) table" )
FT_ERRORDEF_( DEF_In_Glyf_Bytecode, 0x9C,
"found FDEF or IDEF opcode in glyf bytecode" )
FT_ERRORDEF_( Missing_Bitmap, 0x9D,
"missing bitmap in strike" )
FT_ERRORDEF_( Missing_SVG_Hooks, 0x9E,
"SVG hooks have not been set" )
/* CFF, CID, and Type 1 errors */
FT_ERRORDEF_( Syntax_Error, 0xA0,
"opcode syntax error" )
FT_ERRORDEF_( Stack_Underflow, 0xA1,
"argument stack underflow" )
FT_ERRORDEF_( Ignore, 0xA2,
"ignore" )
FT_ERRORDEF_( No_Unicode_Glyph_Name, 0xA3,
"no Unicode glyph name found" )
FT_ERRORDEF_( Glyph_Too_Big, 0xA4,
"glyph too big for hinting" )
/* BDF errors */
FT_ERRORDEF_( Missing_Startfont_Field, 0xB0,
"`STARTFONT' field missing" )
FT_ERRORDEF_( Missing_Font_Field, 0xB1,
"`FONT' field missing" )
FT_ERRORDEF_( Missing_Size_Field, 0xB2,
"`SIZE' field missing" )
FT_ERRORDEF_( Missing_Fontboundingbox_Field, 0xB3,
"`FONTBOUNDINGBOX' field missing" )
FT_ERRORDEF_( Missing_Chars_Field, 0xB4,
"`CHARS' field missing" )
FT_ERRORDEF_( Missing_Startchar_Field, 0xB5,
"`STARTCHAR' field missing" )
FT_ERRORDEF_( Missing_Encoding_Field, 0xB6,
"`ENCODING' field missing" )
FT_ERRORDEF_( Missing_Bbx_Field, 0xB7,
"`BBX' field missing" )
FT_ERRORDEF_( Bbx_Too_Big, 0xB8,
"`BBX' too big" )
FT_ERRORDEF_( Corrupted_Font_Header, 0xB9,
"Font header corrupted or missing fields" )
FT_ERRORDEF_( Corrupted_Font_Glyphs, 0xBA,
"Font glyphs corrupted or missing fields" )
/* */
/* END */

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/****************************************************************************
*
* fterrors.h
*
* FreeType error code handling (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* @section:
* error_enumerations
*
* @title:
* Error Enumerations
*
* @abstract:
* How to handle errors and error strings.
*
* @description:
* The header file `fterrors.h` (which is automatically included by
* `freetype.h`) defines the handling of FreeType's enumeration
* constants. It can also be used to generate error message strings
* with a small macro trick explained below.
*
* **Error Formats**
*
* The configuration macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` can be
* defined in `ftoption.h` in order to make the higher byte indicate the
* module where the error has happened (this is not compatible with
* standard builds of FreeType~2, however). See the file `ftmoderr.h`
* for more details.
*
* **Error Message Strings**
*
* Error definitions are set up with special macros that allow client
* applications to build a table of error message strings. The strings
* are not included in a normal build of FreeType~2 to save space (most
* client applications do not use them).
*
* To do so, you have to define the following macros before including
* this file.
*
* ```
* FT_ERROR_START_LIST
* ```
*
* This macro is called before anything else to define the start of the
* error list. It is followed by several `FT_ERROR_DEF` calls.
*
* ```
* FT_ERROR_DEF( e, v, s )
* ```
*
* This macro is called to define one single error. 'e' is the error
* code identifier (e.g., `Invalid_Argument`), 'v' is the error's
* numerical value, and 's' is the corresponding error string.
*
* ```
* FT_ERROR_END_LIST
* ```
*
* This macro ends the list.
*
* Additionally, you have to undefine `FTERRORS_H_` before #including
* this file.
*
* Here is a simple example.
*
* ```
* #undef FTERRORS_H_
* #define FT_ERRORDEF( e, v, s ) { e, s },
* #define FT_ERROR_START_LIST {
* #define FT_ERROR_END_LIST { 0, NULL } };
*
* const struct
* {
* int err_code;
* const char* err_msg;
* } ft_errors[] =
*
* #include <freetype/fterrors.h>
* ```
*
* An alternative to using an array is a switch statement.
*
* ```
* #undef FTERRORS_H_
* #define FT_ERROR_START_LIST switch ( error_code ) {
* #define FT_ERRORDEF( e, v, s ) case v: return s;
* #define FT_ERROR_END_LIST }
* ```
*
* If you use `FT_CONFIG_OPTION_USE_MODULE_ERRORS`, `error_code` should
* be replaced with `FT_ERROR_BASE(error_code)` in the last example.
*/
/* */
/* In previous FreeType versions we used `__FTERRORS_H__`. However, */
/* using two successive underscores in a non-system symbol name */
/* violates the C (and C++) standard, so it was changed to the */
/* current form. In spite of this, we have to make */
/* */
/* ``` */
/* #undefine __FTERRORS_H__ */
/* ``` */
/* */
/* work for backward compatibility. */
/* */
#if !( defined( FTERRORS_H_ ) && defined ( __FTERRORS_H__ ) )
#define FTERRORS_H_
#define __FTERRORS_H__
/* include module base error codes */
#include <freetype/ftmoderr.h>
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
/* FT_ERR_PREFIX is used as a prefix for error identifiers. */
/* By default, we use `FT_Err_`. */
/* */
#ifndef FT_ERR_PREFIX
#define FT_ERR_PREFIX FT_Err_
#endif
/* FT_ERR_BASE is used as the base for module-specific errors. */
/* */
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#ifndef FT_ERR_BASE
#define FT_ERR_BASE FT_Mod_Err_Base
#endif
#else
#undef FT_ERR_BASE
#define FT_ERR_BASE 0
#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */
/* If FT_ERRORDEF is not defined, we need to define a simple */
/* enumeration type. */
/* */
#ifndef FT_ERRORDEF
#define FT_INCLUDE_ERR_PROTOS
#define FT_ERRORDEF( e, v, s ) e = v,
#define FT_ERROR_START_LIST enum {
#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_ERRORDEF */
/* this macro is used to define an error */
#define FT_ERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s )
/* this is only used for <module>_Err_Ok, which must be 0! */
#define FT_NOERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s )
#ifdef FT_ERROR_START_LIST
FT_ERROR_START_LIST
#endif
/* now include the error codes */
#include <freetype/fterrdef.h>
#ifdef FT_ERROR_END_LIST
FT_ERROR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SIMPLE CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_ERROR_START_LIST
#undef FT_ERROR_END_LIST
#undef FT_ERRORDEF
#undef FT_ERRORDEF_
#undef FT_NOERRORDEF_
#undef FT_NEED_EXTERN_C
#undef FT_ERR_BASE
/* FT_ERR_PREFIX is needed internally */
#ifndef FT2_BUILD_LIBRARY
#undef FT_ERR_PREFIX
#endif
/* FT_INCLUDE_ERR_PROTOS: Control whether function prototypes should be */
/* included with */
/* */
/* #include <freetype/fterrors.h> */
/* */
/* This is only true where `FT_ERRORDEF` is */
/* undefined. */
/* */
/* FT_ERR_PROTOS_DEFINED: Actual multiple-inclusion protection of */
/* `fterrors.h`. */
#ifdef FT_INCLUDE_ERR_PROTOS
#undef FT_INCLUDE_ERR_PROTOS
#ifndef FT_ERR_PROTOS_DEFINED
#define FT_ERR_PROTOS_DEFINED
FT_BEGIN_HEADER
/**************************************************************************
*
* @function:
* FT_Error_String
*
* @description:
* Retrieve the description of a valid FreeType error code.
*
* @input:
* error_code ::
* A valid FreeType error code.
*
* @return:
* A C~string or `NULL`, if any error occurred.
*
* @note:
* FreeType has to be compiled with `FT_CONFIG_OPTION_ERROR_STRINGS` or
* `FT_DEBUG_LEVEL_ERROR` to get meaningful descriptions.
* 'error_string' will be `NULL` otherwise.
*
* Module identification will be ignored:
*
* ```c
* strcmp( FT_Error_String( FT_Err_Unknown_File_Format ),
* FT_Error_String( BDF_Err_Unknown_File_Format ) ) == 0;
* ```
*/
FT_EXPORT( const char* )
FT_Error_String( FT_Error error_code );
/* */
FT_END_HEADER
#endif /* FT_ERR_PROTOS_DEFINED */
#endif /* FT_INCLUDE_ERR_PROTOS */
#endif /* !(FTERRORS_H_ && __FTERRORS_H__) */
/* END */

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/****************************************************************************
*
* ftfntfmt.h
*
* Support functions for font formats.
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTFNTFMT_H_
#define FTFNTFMT_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* font_formats
*
* @title:
* Font Formats
*
* @abstract:
* Getting the font format.
*
* @description:
* The single function in this section can be used to get the font format.
* Note that this information is not needed normally; however, there are
* special cases (like in PDF devices) where it is important to
* differentiate, in spite of FreeType's uniform API.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_Font_Format
*
* @description:
* Return a string describing the format of a given face. Possible values
* are 'TrueType', 'Type~1', 'BDF', 'PCF', 'Type~42', 'CID~Type~1', 'CFF',
* 'PFR', and 'Windows~FNT'.
*
* The return value is suitable to be used as an X11 FONT_PROPERTY.
*
* @input:
* face ::
* Input face handle.
*
* @return:
* Font format string. `NULL` in case of error.
*
* @note:
* A deprecated name for the same function is `FT_Get_X11_Font_Format`.
*/
FT_EXPORT( const char* )
FT_Get_Font_Format( FT_Face face );
/* deprecated */
FT_EXPORT( const char* )
FT_Get_X11_Font_Format( FT_Face face );
/* */
FT_END_HEADER
#endif /* FTFNTFMT_H_ */
/* END */

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/****************************************************************************
*
* ftgasp.h
*
* Access of TrueType's 'gasp' table (specification).
*
* Copyright (C) 2007-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTGASP_H_
#define FTGASP_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gasp_table
*
* @title:
* Gasp Table
*
* @abstract:
* Retrieving TrueType 'gasp' table entries.
*
* @description:
* The function @FT_Get_Gasp can be used to query a TrueType or OpenType
* font for specific entries in its 'gasp' table, if any. This is mainly
* useful when implementing native TrueType hinting with the bytecode
* interpreter to duplicate the Windows text rendering results.
*/
/**************************************************************************
*
* @enum:
* FT_GASP_XXX
*
* @description:
* A list of values and/or bit-flags returned by the @FT_Get_Gasp
* function.
*
* @values:
* FT_GASP_NO_TABLE ::
* This special value means that there is no GASP table in this face.
* It is up to the client to decide what to do.
*
* FT_GASP_DO_GRIDFIT ::
* Grid-fitting and hinting should be performed at the specified ppem.
* This **really** means TrueType bytecode interpretation. If this bit
* is not set, no hinting gets applied.
*
* FT_GASP_DO_GRAY ::
* Anti-aliased rendering should be performed at the specified ppem.
* If not set, do monochrome rendering.
*
* FT_GASP_SYMMETRIC_SMOOTHING ::
* If set, smoothing along multiple axes must be used with ClearType.
*
* FT_GASP_SYMMETRIC_GRIDFIT ::
* Grid-fitting must be used with ClearType's symmetric smoothing.
*
* @note:
* The bit-flags `FT_GASP_DO_GRIDFIT` and `FT_GASP_DO_GRAY` are to be
* used for standard font rasterization only. Independently of that,
* `FT_GASP_SYMMETRIC_SMOOTHING` and `FT_GASP_SYMMETRIC_GRIDFIT` are to
* be used if ClearType is enabled (and `FT_GASP_DO_GRIDFIT` and
* `FT_GASP_DO_GRAY` are consequently ignored).
*
* 'ClearType' is Microsoft's implementation of LCD rendering, partly
* protected by patents.
*
* @since:
* 2.3.0
*/
#define FT_GASP_NO_TABLE -1
#define FT_GASP_DO_GRIDFIT 0x01
#define FT_GASP_DO_GRAY 0x02
#define FT_GASP_SYMMETRIC_GRIDFIT 0x04
#define FT_GASP_SYMMETRIC_SMOOTHING 0x08
/**************************************************************************
*
* @function:
* FT_Get_Gasp
*
* @description:
* For a TrueType or OpenType font file, return the rasterizer behaviour
* flags from the font's 'gasp' table corresponding to a given character
* pixel size.
*
* @input:
* face ::
* The source face handle.
*
* ppem ::
* The vertical character pixel size.
*
* @return:
* Bit flags (see @FT_GASP_XXX), or @FT_GASP_NO_TABLE if there is no
* 'gasp' table in the face.
*
* @note:
* If you want to use the MM functionality of OpenType variation fonts
* (i.e., using @FT_Set_Var_Design_Coordinates and friends), call this
* function **after** setting an instance since the return values can
* change.
*
* @since:
* 2.3.0
*/
FT_EXPORT( FT_Int )
FT_Get_Gasp( FT_Face face,
FT_UInt ppem );
/* */
FT_END_HEADER
#endif /* FTGASP_H_ */
/* END */

750
Example/include/freetype/ftglyph.h
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@ -1,750 +0,0 @@
/****************************************************************************
*
* ftglyph.h
*
* FreeType convenience functions to handle glyphs (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file contains the definition of several convenience functions that
* can be used by client applications to easily retrieve glyph bitmaps and
* outlines from a given face.
*
* These functions should be optional if you are writing a font server or
* text layout engine on top of FreeType. However, they are pretty handy
* for many other simple uses of the library.
*
*/
#ifndef FTGLYPH_H_
#define FTGLYPH_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* glyph_management
*
* @title:
* Glyph Management
*
* @abstract:
* Generic interface to manage individual glyph data.
*
* @description:
* This section contains definitions used to manage glyph data through
* generic @FT_Glyph objects. Each of them can contain a bitmap,
* a vector outline, or even images in other formats. These objects are
* detached from @FT_Face, contrary to @FT_GlyphSlot.
*
*/
/* forward declaration to a private type */
typedef struct FT_Glyph_Class_ FT_Glyph_Class;
/**************************************************************************
*
* @type:
* FT_Glyph
*
* @description:
* Handle to an object used to model generic glyph images. It is a
* pointer to the @FT_GlyphRec structure and can contain a glyph bitmap
* or pointer.
*
* @note:
* Glyph objects are not owned by the library. You must thus release
* them manually (through @FT_Done_Glyph) _before_ calling
* @FT_Done_FreeType.
*/
typedef struct FT_GlyphRec_* FT_Glyph;
/**************************************************************************
*
* @struct:
* FT_GlyphRec
*
* @description:
* The root glyph structure contains a given glyph image plus its advance
* width in 16.16 fixed-point format.
*
* @fields:
* library ::
* A handle to the FreeType library object.
*
* clazz ::
* A pointer to the glyph's class. Private.
*
* format ::
* The format of the glyph's image.
*
* advance ::
* A 16.16 vector that gives the glyph's advance width.
*/
typedef struct FT_GlyphRec_
{
FT_Library library;
const FT_Glyph_Class* clazz;
FT_Glyph_Format format;
FT_Vector advance;
} FT_GlyphRec;
/**************************************************************************
*
* @type:
* FT_BitmapGlyph
*
* @description:
* A handle to an object used to model a bitmap glyph image. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_BitmapGlyphRec.
*/
typedef struct FT_BitmapGlyphRec_* FT_BitmapGlyph;
/**************************************************************************
*
* @struct:
* FT_BitmapGlyphRec
*
* @description:
* A structure used for bitmap glyph images. This really is a
* 'sub-class' of @FT_GlyphRec.
*
* @fields:
* root ::
* The root fields of @FT_Glyph.
*
* left ::
* The left-side bearing, i.e., the horizontal distance from the
* current pen position to the left border of the glyph bitmap.
*
* top ::
* The top-side bearing, i.e., the vertical distance from the current
* pen position to the top border of the glyph bitmap. This distance
* is positive for upwards~y!
*
* bitmap ::
* A descriptor for the bitmap.
*
* @note:
* You can typecast an @FT_Glyph to @FT_BitmapGlyph if you have
* `glyph->format == FT_GLYPH_FORMAT_BITMAP`. This lets you access the
* bitmap's contents easily.
*
* The corresponding pixel buffer is always owned by @FT_BitmapGlyph and
* is thus created and destroyed with it.
*/
typedef struct FT_BitmapGlyphRec_
{
FT_GlyphRec root;
FT_Int left;
FT_Int top;
FT_Bitmap bitmap;
} FT_BitmapGlyphRec;
/**************************************************************************
*
* @type:
* FT_OutlineGlyph
*
* @description:
* A handle to an object used to model an outline glyph image. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_OutlineGlyphRec.
*/
typedef struct FT_OutlineGlyphRec_* FT_OutlineGlyph;
/**************************************************************************
*
* @struct:
* FT_OutlineGlyphRec
*
* @description:
* A structure used for outline (vectorial) glyph images. This really is
* a 'sub-class' of @FT_GlyphRec.
*
* @fields:
* root ::
* The root @FT_Glyph fields.
*
* outline ::
* A descriptor for the outline.
*
* @note:
* You can typecast an @FT_Glyph to @FT_OutlineGlyph if you have
* `glyph->format == FT_GLYPH_FORMAT_OUTLINE`. This lets you access the
* outline's content easily.
*
* As the outline is extracted from a glyph slot, its coordinates are
* expressed normally in 26.6 pixels, unless the flag @FT_LOAD_NO_SCALE
* was used in @FT_Load_Glyph or @FT_Load_Char.
*
* The outline's tables are always owned by the object and are destroyed
* with it.
*/
typedef struct FT_OutlineGlyphRec_
{
FT_GlyphRec root;
FT_Outline outline;
} FT_OutlineGlyphRec;
/**************************************************************************
*
* @type:
* FT_SvgGlyph
*
* @description:
* A handle to an object used to model an SVG glyph. This is a
* 'sub-class' of @FT_Glyph, and a pointer to @FT_SvgGlyphRec.
*
* @since:
* 2.12
*/
typedef struct FT_SvgGlyphRec_* FT_SvgGlyph;
/**************************************************************************
*
* @struct:
* FT_SvgGlyphRec
*
* @description:
* A structure used for OT-SVG glyphs. This is a 'sub-class' of
* @FT_GlyphRec.
*
* @fields:
* root ::
* The root @FT_GlyphRec fields.
*
* svg_document ::
* A pointer to the SVG document.
*
* svg_document_length ::
* The length of `svg_document`.
*
* glyph_index ::
* The index of the glyph to be rendered.
*
* metrics ::
* A metrics object storing the size information.
*
* units_per_EM ::
* The size of the EM square.
*
* start_glyph_id ::
* The first glyph ID in the glyph range covered by this document.
*
* end_glyph_id ::
* The last glyph ID in the glyph range covered by this document.
*
* transform ::
* A 2x2 transformation matrix to apply to the glyph while rendering
* it.
*
* delta ::
* Translation to apply to the glyph while rendering.
*
* @note:
* The Glyph Management API requires @FT_Glyph or its 'sub-class' to have
* all the information needed to completely define the glyph's rendering.
* Outline-based glyphs can directly apply transformations to the outline
* but this is not possible for an SVG document that hasn't been parsed.
* Therefore, the transformation is stored along with the document. In
* the absence of a 'ViewBox' or 'Width'/'Height' attribute, the size of
* the ViewPort should be assumed to be 'units_per_EM'.
*/
typedef struct FT_SvgGlyphRec_
{
FT_GlyphRec root;
FT_Byte* svg_document;
FT_ULong svg_document_length;
FT_UInt glyph_index;
FT_Size_Metrics metrics;
FT_UShort units_per_EM;
FT_UShort start_glyph_id;
FT_UShort end_glyph_id;
FT_Matrix transform;
FT_Vector delta;
} FT_SvgGlyphRec;
/**************************************************************************
*
* @function:
* FT_New_Glyph
*
* @description:
* A function used to create a new empty glyph image. Note that the
* created @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* library ::
* A handle to the FreeType library object.
*
* format ::
* The format of the glyph's image.
*
* @output:
* aglyph ::
* A handle to the glyph object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_New_Glyph( FT_Library library,
FT_Glyph_Format format,
FT_Glyph *aglyph );
/**************************************************************************
*
* @function:
* FT_Get_Glyph
*
* @description:
* A function used to extract a glyph image from a slot. Note that the
* created @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* slot ::
* A handle to the source glyph slot.
*
* @output:
* aglyph ::
* A handle to the glyph object. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Because `*aglyph->advance.x` and `*aglyph->advance.y` are 16.16
* fixed-point numbers, `slot->advance.x` and `slot->advance.y` (which
* are in 26.6 fixed-point format) must be in the range ]-32768;32768[.
*/
FT_EXPORT( FT_Error )
FT_Get_Glyph( FT_GlyphSlot slot,
FT_Glyph *aglyph );
/**************************************************************************
*
* @function:
* FT_Glyph_Copy
*
* @description:
* A function used to copy a glyph image. Note that the created
* @FT_Glyph object must be released with @FT_Done_Glyph.
*
* @input:
* source ::
* A handle to the source glyph object.
*
* @output:
* target ::
* A handle to the target glyph object. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Copy( FT_Glyph source,
FT_Glyph *target );
/**************************************************************************
*
* @function:
* FT_Glyph_Transform
*
* @description:
* Transform a glyph image if its format is scalable.
*
* @inout:
* glyph ::
* A handle to the target glyph object.
*
* @input:
* matrix ::
* A pointer to a 2x2 matrix to apply.
*
* delta ::
* A pointer to a 2d vector to apply. Coordinates are expressed in
* 1/64 of a pixel.
*
* @return:
* FreeType error code (if not 0, the glyph format is not scalable).
*
* @note:
* The 2x2 transformation matrix is also applied to the glyph's advance
* vector.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Transform( FT_Glyph glyph,
const FT_Matrix* matrix,
const FT_Vector* delta );
/**************************************************************************
*
* @enum:
* FT_Glyph_BBox_Mode
*
* @description:
* The mode how the values of @FT_Glyph_Get_CBox are returned.
*
* @values:
* FT_GLYPH_BBOX_UNSCALED ::
* Return unscaled font units.
*
* FT_GLYPH_BBOX_SUBPIXELS ::
* Return unfitted 26.6 coordinates.
*
* FT_GLYPH_BBOX_GRIDFIT ::
* Return grid-fitted 26.6 coordinates.
*
* FT_GLYPH_BBOX_TRUNCATE ::
* Return coordinates in integer pixels.
*
* FT_GLYPH_BBOX_PIXELS ::
* Return grid-fitted pixel coordinates.
*/
typedef enum FT_Glyph_BBox_Mode_
{
FT_GLYPH_BBOX_UNSCALED = 0,
FT_GLYPH_BBOX_SUBPIXELS = 0,
FT_GLYPH_BBOX_GRIDFIT = 1,
FT_GLYPH_BBOX_TRUNCATE = 2,
FT_GLYPH_BBOX_PIXELS = 3
} FT_Glyph_BBox_Mode;
/* these constants are deprecated; use the corresponding */
/* `FT_Glyph_BBox_Mode` values instead */
#define ft_glyph_bbox_unscaled FT_GLYPH_BBOX_UNSCALED
#define ft_glyph_bbox_subpixels FT_GLYPH_BBOX_SUBPIXELS
#define ft_glyph_bbox_gridfit FT_GLYPH_BBOX_GRIDFIT
#define ft_glyph_bbox_truncate FT_GLYPH_BBOX_TRUNCATE
#define ft_glyph_bbox_pixels FT_GLYPH_BBOX_PIXELS
/**************************************************************************
*
* @function:
* FT_Glyph_Get_CBox
*
* @description:
* Return a glyph's 'control box'. The control box encloses all the
* outline's points, including Bezier control points. Though it
* coincides with the exact bounding box for most glyphs, it can be
* slightly larger in some situations (like when rotating an outline that
* contains Bezier outside arcs).
*
* Computing the control box is very fast, while getting the bounding box
* can take much more time as it needs to walk over all segments and arcs
* in the outline. To get the latter, you can use the 'ftbbox'
* component, which is dedicated to this single task.
*
* @input:
* glyph ::
* A handle to the source glyph object.
*
* mode ::
* The mode that indicates how to interpret the returned bounding box
* values.
*
* @output:
* acbox ::
* The glyph coordinate bounding box. Coordinates are expressed in
* 1/64 of pixels if it is grid-fitted.
*
* @note:
* Coordinates are relative to the glyph origin, using the y~upwards
* convention.
*
* If the glyph has been loaded with @FT_LOAD_NO_SCALE, `bbox_mode` must
* be set to @FT_GLYPH_BBOX_UNSCALED to get unscaled font units in 26.6
* pixel format. The value @FT_GLYPH_BBOX_SUBPIXELS is another name for
* this constant.
*
* If the font is tricky and the glyph has been loaded with
* @FT_LOAD_NO_SCALE, the resulting CBox is meaningless. To get
* reasonable values for the CBox it is necessary to load the glyph at a
* large ppem value (so that the hinting instructions can properly shift
* and scale the subglyphs), then extracting the CBox, which can be
* eventually converted back to font units.
*
* Note that the maximum coordinates are exclusive, which means that one
* can compute the width and height of the glyph image (be it in integer
* or 26.6 pixels) as:
*
* ```
* width = bbox.xMax - bbox.xMin;
* height = bbox.yMax - bbox.yMin;
* ```
*
* Note also that for 26.6 coordinates, if `bbox_mode` is set to
* @FT_GLYPH_BBOX_GRIDFIT, the coordinates will also be grid-fitted,
* which corresponds to:
*
* ```
* bbox.xMin = FLOOR(bbox.xMin);
* bbox.yMin = FLOOR(bbox.yMin);
* bbox.xMax = CEILING(bbox.xMax);
* bbox.yMax = CEILING(bbox.yMax);
* ```
*
* To get the bbox in pixel coordinates, set `bbox_mode` to
* @FT_GLYPH_BBOX_TRUNCATE.
*
* To get the bbox in grid-fitted pixel coordinates, set `bbox_mode` to
* @FT_GLYPH_BBOX_PIXELS.
*/
FT_EXPORT( void )
FT_Glyph_Get_CBox( FT_Glyph glyph,
FT_UInt bbox_mode,
FT_BBox *acbox );
/**************************************************************************
*
* @function:
* FT_Glyph_To_Bitmap
*
* @description:
* Convert a given glyph object to a bitmap glyph object.
*
* @inout:
* the_glyph ::
* A pointer to a handle to the target glyph.
*
* @input:
* render_mode ::
* An enumeration that describes how the data is rendered.
*
* origin ::
* A pointer to a vector used to translate the glyph image before
* rendering. Can be~0 (if no translation). The origin is expressed
* in 26.6 pixels.
*
* destroy ::
* A boolean that indicates that the original glyph image should be
* destroyed by this function. It is never destroyed in case of error.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does nothing if the glyph format isn't scalable.
*
* The glyph image is translated with the `origin` vector before
* rendering.
*
* The first parameter is a pointer to an @FT_Glyph handle that will be
* _replaced_ by this function (with newly allocated data). Typically,
* you would do something like the following (omitting error handling).
*
* ```
* FT_Glyph glyph;
* FT_BitmapGlyph glyph_bitmap;
*
*
* // load glyph
* error = FT_Load_Char( face, glyph_index, FT_LOAD_DEFAULT );
*
* // extract glyph image
* error = FT_Get_Glyph( face->glyph, &glyph );
*
* // convert to a bitmap (default render mode + destroying old)
* if ( glyph->format != FT_GLYPH_FORMAT_BITMAP )
* {
* error = FT_Glyph_To_Bitmap( &glyph, FT_RENDER_MODE_NORMAL,
* 0, 1 );
* if ( error ) // `glyph' unchanged
* ...
* }
*
* // access bitmap content by typecasting
* glyph_bitmap = (FT_BitmapGlyph)glyph;
*
* // do funny stuff with it, like blitting/drawing
* ...
*
* // discard glyph image (bitmap or not)
* FT_Done_Glyph( glyph );
* ```
*
* Here is another example, again without error handling.
*
* ```
* FT_Glyph glyphs[MAX_GLYPHS]
*
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* error = FT_Load_Glyph( face, idx, FT_LOAD_DEFAULT ) ||
* FT_Get_Glyph ( face->glyph, &glyphs[idx] );
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* {
* FT_Glyph bitmap = glyphs[idx];
*
*
* ...
*
* // after this call, `bitmap' no longer points into
* // the `glyphs' array (and the old value isn't destroyed)
* FT_Glyph_To_Bitmap( &bitmap, FT_RENDER_MODE_MONO, 0, 0 );
*
* ...
*
* FT_Done_Glyph( bitmap );
* }
*
* ...
*
* for ( idx = 0; i < MAX_GLYPHS; i++ )
* FT_Done_Glyph( glyphs[idx] );
* ```
*/
FT_EXPORT( FT_Error )
FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
FT_Render_Mode render_mode,
const FT_Vector* origin,
FT_Bool destroy );
/**************************************************************************
*
* @function:
* FT_Done_Glyph
*
* @description:
* Destroy a given glyph.
*
* @input:
* glyph ::
* A handle to the target glyph object. Can be `NULL`.
*/
FT_EXPORT( void )
FT_Done_Glyph( FT_Glyph glyph );
/* */
/* other helpful functions */
/**************************************************************************
*
* @section:
* computations
*
*/
/**************************************************************************
*
* @function:
* FT_Matrix_Multiply
*
* @description:
* Perform the matrix operation `b = a*b`.
*
* @input:
* a ::
* A pointer to matrix `a`.
*
* @inout:
* b ::
* A pointer to matrix `b`.
*
* @note:
* The result is undefined if either `a` or `b` is zero.
*
* Since the function uses wrap-around arithmetic, results become
* meaningless if the arguments are very large.
*/
FT_EXPORT( void )
FT_Matrix_Multiply( const FT_Matrix* a,
FT_Matrix* b );
/**************************************************************************
*
* @function:
* FT_Matrix_Invert
*
* @description:
* Invert a 2x2 matrix. Return an error if it can't be inverted.
*
* @inout:
* matrix ::
* A pointer to the target matrix. Remains untouched in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Matrix_Invert( FT_Matrix* matrix );
/* */
FT_END_HEADER
#endif /* FTGLYPH_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

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/****************************************************************************
*
* ftgxval.h
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
* Copyright (C) 2004-2023 by
* Masatake YAMATO, Redhat K.K,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
* gxvalid is derived from both gxlayout module and otvalid module.
* Development of gxlayout is supported by the Information-technology
* Promotion Agency(IPA), Japan.
*
*/
#ifndef FTGXVAL_H_
#define FTGXVAL_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gx_validation
*
* @title:
* TrueTypeGX/AAT Validation
*
* @abstract:
* An API to validate TrueTypeGX/AAT tables.
*
* @description:
* This section contains the declaration of functions to validate some
* TrueTypeGX tables (feat, mort, morx, bsln, just, kern, opbd, trak,
* prop, lcar).
*
* @order:
* FT_TrueTypeGX_Validate
* FT_TrueTypeGX_Free
*
* FT_ClassicKern_Validate
* FT_ClassicKern_Free
*
* FT_VALIDATE_GX_LENGTH
* FT_VALIDATE_GXXXX
* FT_VALIDATE_CKERNXXX
*
*/
/**************************************************************************
*
*
* Warning: Use `FT_VALIDATE_XXX` to validate a table.
* Following definitions are for gxvalid developers.
*
*
*/
#define FT_VALIDATE_feat_INDEX 0
#define FT_VALIDATE_mort_INDEX 1
#define FT_VALIDATE_morx_INDEX 2
#define FT_VALIDATE_bsln_INDEX 3
#define FT_VALIDATE_just_INDEX 4
#define FT_VALIDATE_kern_INDEX 5
#define FT_VALIDATE_opbd_INDEX 6
#define FT_VALIDATE_trak_INDEX 7
#define FT_VALIDATE_prop_INDEX 8
#define FT_VALIDATE_lcar_INDEX 9
#define FT_VALIDATE_GX_LAST_INDEX FT_VALIDATE_lcar_INDEX
/**************************************************************************
*
* @macro:
* FT_VALIDATE_GX_LENGTH
*
* @description:
* The number of tables checked in this module. Use it as a parameter
* for the `table-length` argument of function @FT_TrueTypeGX_Validate.
*/
#define FT_VALIDATE_GX_LENGTH ( FT_VALIDATE_GX_LAST_INDEX + 1 )
/* */
/* Up to 0x1000 is used by otvalid.
Ox2xxx is reserved for feature OT extension. */
#define FT_VALIDATE_GX_START 0x4000
#define FT_VALIDATE_GX_BITFIELD( tag ) \
( FT_VALIDATE_GX_START << FT_VALIDATE_##tag##_INDEX )
/**************************************************************************
*
* @enum:
* FT_VALIDATE_GXXXX
*
* @description:
* A list of bit-field constants used with @FT_TrueTypeGX_Validate to
* indicate which TrueTypeGX/AAT Type tables should be validated.
*
* @values:
* FT_VALIDATE_feat ::
* Validate 'feat' table.
*
* FT_VALIDATE_mort ::
* Validate 'mort' table.
*
* FT_VALIDATE_morx ::
* Validate 'morx' table.
*
* FT_VALIDATE_bsln ::
* Validate 'bsln' table.
*
* FT_VALIDATE_just ::
* Validate 'just' table.
*
* FT_VALIDATE_kern ::
* Validate 'kern' table.
*
* FT_VALIDATE_opbd ::
* Validate 'opbd' table.
*
* FT_VALIDATE_trak ::
* Validate 'trak' table.
*
* FT_VALIDATE_prop ::
* Validate 'prop' table.
*
* FT_VALIDATE_lcar ::
* Validate 'lcar' table.
*
* FT_VALIDATE_GX ::
* Validate all TrueTypeGX tables (feat, mort, morx, bsln, just, kern,
* opbd, trak, prop and lcar).
*
*/
#define FT_VALIDATE_feat FT_VALIDATE_GX_BITFIELD( feat )
#define FT_VALIDATE_mort FT_VALIDATE_GX_BITFIELD( mort )
#define FT_VALIDATE_morx FT_VALIDATE_GX_BITFIELD( morx )
#define FT_VALIDATE_bsln FT_VALIDATE_GX_BITFIELD( bsln )
#define FT_VALIDATE_just FT_VALIDATE_GX_BITFIELD( just )
#define FT_VALIDATE_kern FT_VALIDATE_GX_BITFIELD( kern )
#define FT_VALIDATE_opbd FT_VALIDATE_GX_BITFIELD( opbd )
#define FT_VALIDATE_trak FT_VALIDATE_GX_BITFIELD( trak )
#define FT_VALIDATE_prop FT_VALIDATE_GX_BITFIELD( prop )
#define FT_VALIDATE_lcar FT_VALIDATE_GX_BITFIELD( lcar )
#define FT_VALIDATE_GX ( FT_VALIDATE_feat | \
FT_VALIDATE_mort | \
FT_VALIDATE_morx | \
FT_VALIDATE_bsln | \
FT_VALIDATE_just | \
FT_VALIDATE_kern | \
FT_VALIDATE_opbd | \
FT_VALIDATE_trak | \
FT_VALIDATE_prop | \
FT_VALIDATE_lcar )
/**************************************************************************
*
* @function:
* FT_TrueTypeGX_Validate
*
* @description:
* Validate various TrueTypeGX tables to assure that all offsets and
* indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_GXXXX for possible values.
*
* table_length ::
* The size of the `tables` array. Normally, @FT_VALIDATE_GX_LENGTH
* should be passed.
*
* @output:
* tables ::
* The array where all validated sfnt tables are stored. The array
* itself must be allocated by a client.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with TrueTypeGX fonts, returning an error
* otherwise.
*
* After use, the application should deallocate the buffers pointed to by
* each `tables` element, by calling @FT_TrueTypeGX_Free. A `NULL` value
* indicates that the table either doesn't exist in the font, the
* application hasn't asked for validation, or the validator doesn't have
* the ability to validate the sfnt table.
*/
FT_EXPORT( FT_Error )
FT_TrueTypeGX_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes tables[FT_VALIDATE_GX_LENGTH],
FT_UInt table_length );
/**************************************************************************
*
* @function:
* FT_TrueTypeGX_Free
*
* @description:
* Free the buffer allocated by TrueTypeGX validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer allocated by @FT_TrueTypeGX_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_TrueTypeGX_Validate only.
*/
FT_EXPORT( void )
FT_TrueTypeGX_Free( FT_Face face,
FT_Bytes table );
/**************************************************************************
*
* @enum:
* FT_VALIDATE_CKERNXXX
*
* @description:
* A list of bit-field constants used with @FT_ClassicKern_Validate to
* indicate the classic kern dialect or dialects. If the selected type
* doesn't fit, @FT_ClassicKern_Validate regards the table as invalid.
*
* @values:
* FT_VALIDATE_MS ::
* Handle the 'kern' table as a classic Microsoft kern table.
*
* FT_VALIDATE_APPLE ::
* Handle the 'kern' table as a classic Apple kern table.
*
* FT_VALIDATE_CKERN ::
* Handle the 'kern' as either classic Apple or Microsoft kern table.
*/
#define FT_VALIDATE_MS ( FT_VALIDATE_GX_START << 0 )
#define FT_VALIDATE_APPLE ( FT_VALIDATE_GX_START << 1 )
#define FT_VALIDATE_CKERN ( FT_VALIDATE_MS | FT_VALIDATE_APPLE )
/**************************************************************************
*
* @function:
* FT_ClassicKern_Validate
*
* @description:
* Validate classic (16-bit format) kern table to assure that the
* offsets and indices are valid. The idea is that a higher-level
* library that actually does the text layout can access those tables
* without error checking (which can be quite time consuming).
*
* The 'kern' table validator in @FT_TrueTypeGX_Validate deals with both
* the new 32-bit format and the classic 16-bit format, while
* FT_ClassicKern_Validate only supports the classic 16-bit format.
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the dialect to be validated. See
* @FT_VALIDATE_CKERNXXX for possible values.
*
* @output:
* ckern_table ::
* A pointer to the kern table.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* After use, the application should deallocate the buffers pointed to by
* `ckern_table`, by calling @FT_ClassicKern_Free. A `NULL` value
* indicates that the table doesn't exist in the font.
*/
FT_EXPORT( FT_Error )
FT_ClassicKern_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes *ckern_table );
/**************************************************************************
*
* @function:
* FT_ClassicKern_Free
*
* @description:
* Free the buffer allocated by classic Kern validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer that is allocated by
* @FT_ClassicKern_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_ClassicKern_Validate only.
*/
FT_EXPORT( void )
FT_ClassicKern_Free( FT_Face face,
FT_Bytes table );
/* */
FT_END_HEADER
#endif /* FTGXVAL_H_ */
/* END */

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Example/include/freetype/ftgzip.h
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/****************************************************************************
*
* ftgzip.h
*
* Gzip-compressed stream support.
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTGZIP_H_
#define FTGZIP_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* gzip
*
* @title:
* GZIP Streams
*
* @abstract:
* Using gzip-compressed font files.
*
* @description:
* In certain builds of the library, gzip compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a gzipped stream from it
* and re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of Gzip-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenGzip
*
* @description:
* Open a new stream to parse gzip-compressed font files. This is mainly
* used to support the compressed `*.pcf.gz` fonts that come with
* XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with zlib support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenGzip( FT_Stream stream,
FT_Stream source );
/**************************************************************************
*
* @function:
* FT_Gzip_Uncompress
*
* @description:
* Decompress a zipped input buffer into an output buffer. This function
* is modeled after zlib's `uncompress` function.
*
* @input:
* memory ::
* A FreeType memory handle.
*
* input ::
* The input buffer.
*
* input_len ::
* The length of the input buffer.
*
* @output:
* output ::
* The output buffer.
*
* @inout:
* output_len ::
* Before calling the function, this is the total size of the output
* buffer, which must be large enough to hold the entire uncompressed
* data (so the size of the uncompressed data must be known in
* advance). After calling the function, `output_len` is the size of
* the used data in `output`.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with zlib support.
*
* @since:
* 2.5.1
*/
FT_EXPORT( FT_Error )
FT_Gzip_Uncompress( FT_Memory memory,
FT_Byte* output,
FT_ULong* output_len,
const FT_Byte* input,
FT_ULong input_len );
/* */
FT_END_HEADER
#endif /* FTGZIP_H_ */
/* END */

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Example/include/freetype/ftincrem.h
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/****************************************************************************
*
* ftincrem.h
*
* FreeType incremental loading (specification).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTINCREM_H_
#define FTINCREM_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* incremental
*
* @title:
* Incremental Loading
*
* @abstract:
* Custom Glyph Loading.
*
* @description:
* This section contains various functions used to perform so-called
* 'incremental' glyph loading. This is a mode where all glyphs loaded
* from a given @FT_Face are provided by the client application.
*
* Apart from that, all other tables are loaded normally from the font
* file. This mode is useful when FreeType is used within another
* engine, e.g., a PostScript Imaging Processor.
*
* To enable this mode, you must use @FT_Open_Face, passing an
* @FT_Parameter with the @FT_PARAM_TAG_INCREMENTAL tag and an
* @FT_Incremental_Interface value. See the comments for
* @FT_Incremental_InterfaceRec for an example.
*
*/
/**************************************************************************
*
* @type:
* FT_Incremental
*
* @description:
* An opaque type describing a user-provided object used to implement
* 'incremental' glyph loading within FreeType. This is used to support
* embedded fonts in certain environments (e.g., PostScript
* interpreters), where the glyph data isn't in the font file, or must be
* overridden by different values.
*
* @note:
* It is up to client applications to create and implement
* @FT_Incremental objects, as long as they provide implementations for
* the methods @FT_Incremental_GetGlyphDataFunc,
* @FT_Incremental_FreeGlyphDataFunc and
* @FT_Incremental_GetGlyphMetricsFunc.
*
* See the description of @FT_Incremental_InterfaceRec to understand how
* to use incremental objects with FreeType.
*
*/
typedef struct FT_IncrementalRec_* FT_Incremental;
/**************************************************************************
*
* @struct:
* FT_Incremental_MetricsRec
*
* @description:
* A small structure used to contain the basic glyph metrics returned by
* the @FT_Incremental_GetGlyphMetricsFunc method.
*
* @fields:
* bearing_x ::
* Left bearing, in font units.
*
* bearing_y ::
* Top bearing, in font units.
*
* advance ::
* Horizontal component of glyph advance, in font units.
*
* advance_v ::
* Vertical component of glyph advance, in font units.
*
* @note:
* These correspond to horizontal or vertical metrics depending on the
* value of the `vertical` argument to the function
* @FT_Incremental_GetGlyphMetricsFunc.
*
*/
typedef struct FT_Incremental_MetricsRec_
{
FT_Long bearing_x;
FT_Long bearing_y;
FT_Long advance;
FT_Long advance_v; /* since 2.3.12 */
} FT_Incremental_MetricsRec;
/**************************************************************************
*
* @struct:
* FT_Incremental_Metrics
*
* @description:
* A handle to an @FT_Incremental_MetricsRec structure.
*
*/
typedef struct FT_Incremental_MetricsRec_* FT_Incremental_Metrics;
/**************************************************************************
*
* @type:
* FT_Incremental_GetGlyphDataFunc
*
* @description:
* A function called by FreeType to access a given glyph's data bytes
* during @FT_Load_Glyph or @FT_Load_Char if incremental loading is
* enabled.
*
* Note that the format of the glyph's data bytes depends on the font
* file format. For TrueType, it must correspond to the raw bytes within
* the 'glyf' table. For PostScript formats, it must correspond to the
* **unencrypted** charstring bytes, without any `lenIV` header. It is
* undefined for any other format.
*
* @input:
* incremental ::
* Handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* glyph_index ::
* Index of relevant glyph.
*
* @output:
* adata ::
* A structure describing the returned glyph data bytes (which will be
* accessed as a read-only byte block).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If this function returns successfully the method
* @FT_Incremental_FreeGlyphDataFunc will be called later to release the
* data bytes.
*
* Nested calls to @FT_Incremental_GetGlyphDataFunc can happen for
* compound glyphs.
*
*/
typedef FT_Error
(*FT_Incremental_GetGlyphDataFunc)( FT_Incremental incremental,
FT_UInt glyph_index,
FT_Data* adata );
/**************************************************************************
*
* @type:
* FT_Incremental_FreeGlyphDataFunc
*
* @description:
* A function used to release the glyph data bytes returned by a
* successful call to @FT_Incremental_GetGlyphDataFunc.
*
* @input:
* incremental ::
* A handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* data ::
* A structure describing the glyph data bytes (which will be accessed
* as a read-only byte block).
*
*/
typedef void
(*FT_Incremental_FreeGlyphDataFunc)( FT_Incremental incremental,
FT_Data* data );
/**************************************************************************
*
* @type:
* FT_Incremental_GetGlyphMetricsFunc
*
* @description:
* A function used to retrieve the basic metrics of a given glyph index
* before accessing its data. This allows for handling font types such
* as PCL~XL Format~1, Class~2 downloaded TrueType fonts, where the glyph
* metrics (`hmtx` and `vmtx` tables) are permitted to be omitted from
* the font, and the relevant metrics included in the header of the glyph
* outline data. Importantly, this is not intended to allow custom glyph
* metrics (for example, Postscript Metrics dictionaries), because that
* conflicts with the requirements of outline hinting. Such custom
* metrics must be handled separately, by the calling application.
*
* @input:
* incremental ::
* A handle to an opaque @FT_Incremental handle provided by the client
* application.
*
* glyph_index ::
* Index of relevant glyph.
*
* vertical ::
* If true, return vertical metrics.
*
* ametrics ::
* This parameter is used for both input and output. The original
* glyph metrics, if any, in font units. If metrics are not available
* all the values must be set to zero.
*
* @output:
* ametrics ::
* The glyph metrics in font units.
*
*/
typedef FT_Error
(*FT_Incremental_GetGlyphMetricsFunc)
( FT_Incremental incremental,
FT_UInt glyph_index,
FT_Bool vertical,
FT_Incremental_MetricsRec *ametrics );
/**************************************************************************
*
* @struct:
* FT_Incremental_FuncsRec
*
* @description:
* A table of functions for accessing fonts that load data incrementally.
* Used in @FT_Incremental_InterfaceRec.
*
* @fields:
* get_glyph_data ::
* The function to get glyph data. Must not be null.
*
* free_glyph_data ::
* The function to release glyph data. Must not be null.
*
* get_glyph_metrics ::
* The function to get glyph metrics. May be null if the font does not
* require it.
*
*/
typedef struct FT_Incremental_FuncsRec_
{
FT_Incremental_GetGlyphDataFunc get_glyph_data;
FT_Incremental_FreeGlyphDataFunc free_glyph_data;
FT_Incremental_GetGlyphMetricsFunc get_glyph_metrics;
} FT_Incremental_FuncsRec;
/**************************************************************************
*
* @struct:
* FT_Incremental_InterfaceRec
*
* @description:
* A structure to be used with @FT_Open_Face to indicate that the user
* wants to support incremental glyph loading. You should use it with
* @FT_PARAM_TAG_INCREMENTAL as in the following example:
*
* ```
* FT_Incremental_InterfaceRec inc_int;
* FT_Parameter parameter;
* FT_Open_Args open_args;
*
*
* // set up incremental descriptor
* inc_int.funcs = my_funcs;
* inc_int.object = my_object;
*
* // set up optional parameter
* parameter.tag = FT_PARAM_TAG_INCREMENTAL;
* parameter.data = &inc_int;
*
* // set up FT_Open_Args structure
* open_args.flags = FT_OPEN_PATHNAME | FT_OPEN_PARAMS;
* open_args.pathname = my_font_pathname;
* open_args.num_params = 1;
* open_args.params = &parameter; // we use one optional argument
*
* // open the font
* error = FT_Open_Face( library, &open_args, index, &face );
* ...
* ```
*
*/
typedef struct FT_Incremental_InterfaceRec_
{
const FT_Incremental_FuncsRec* funcs;
FT_Incremental object;
} FT_Incremental_InterfaceRec;
/**************************************************************************
*
* @type:
* FT_Incremental_Interface
*
* @description:
* A pointer to an @FT_Incremental_InterfaceRec structure.
*
*/
typedef FT_Incremental_InterfaceRec* FT_Incremental_Interface;
/* */
FT_END_HEADER
#endif /* FTINCREM_H_ */
/* END */

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Example/include/freetype/ftlcdfil.h
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/****************************************************************************
*
* ftlcdfil.h
*
* FreeType API for color filtering of subpixel bitmap glyphs
* (specification).
*
* Copyright (C) 2006-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTLCDFIL_H_
#define FTLCDFIL_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* lcd_rendering
*
* @title:
* Subpixel Rendering
*
* @abstract:
* API to control subpixel rendering.
*
* @description:
* FreeType provides two alternative subpixel rendering technologies.
* Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your
* `ftoption.h` file, this enables ClearType-style rendering.
* Otherwise, Harmony LCD rendering is enabled. These technologies are
* controlled differently and API described below, although always
* available, performs its function when appropriate method is enabled
* and does nothing otherwise.
*
* ClearType-style LCD rendering exploits the color-striped structure of
* LCD pixels, increasing the available resolution in the direction of
* the stripe (usually horizontal RGB) by a factor of~3. Using the
* subpixel coverages unfiltered can create severe color fringes
* especially when rendering thin features. Indeed, to produce
* black-on-white text, the nearby color subpixels must be dimmed
* evenly. Therefore, an equalizing 5-tap FIR filter should be applied
* to subpixel coverages regardless of pixel boundaries and should have
* these properties:
*
* 1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid
* any shifts in appearance.
*
* 2. It should be color-balanced, meaning a~+ b~=~c, to reduce color
* fringes by distributing the computed coverage for one subpixel to
* all subpixels equally.
*
* 3. It should be normalized, meaning 2a~+ 2b~+ c~=~1.0 to maintain
* overall brightness.
*
* Boxy 3-tap filter {0, 1/3, 1/3, 1/3, 0} is sharper but is less
* forgiving of non-ideal gamma curves of a screen (and viewing angles),
* beveled filters are fuzzier but more tolerant.
*
* Use the @FT_Library_SetLcdFilter or @FT_Library_SetLcdFilterWeights
* API to specify a low-pass filter, which is then applied to
* subpixel-rendered bitmaps generated through @FT_Render_Glyph.
*
* Harmony LCD rendering is suitable to panels with any regular subpixel
* structure, not just monitors with 3 color striped subpixels, as long
* as the color subpixels have fixed positions relative to the pixel
* center. In this case, each color channel can be rendered separately
* after shifting the outline opposite to the subpixel shift so that the
* coverage maps are aligned. This method is immune to color fringes
* because the shifts do not change integral coverage.
*
* The subpixel geometry must be specified by xy-coordinates for each
* subpixel. By convention they may come in the RGB order: {{-1/3, 0},
* {0, 0}, {1/3, 0}} for standard RGB striped panel or {{-1/6, 1/4},
* {-1/6, -1/4}, {1/3, 0}} for a certain PenTile panel.
*
* Use the @FT_Library_SetLcdGeometry API to specify subpixel positions.
* If one follows the RGB order convention, the same order applies to the
* resulting @FT_PIXEL_MODE_LCD and @FT_PIXEL_MODE_LCD_V bitmaps. Note,
* however, that the coordinate frame for the latter must be rotated
* clockwise. Harmony with default LCD geometry is equivalent to
* ClearType with light filter.
*
* As a result of ClearType filtering or Harmony shifts, the resulting
* dimensions of LCD bitmaps can be slightly wider or taller than the
* dimensions the original outline with regard to the pixel grid.
* For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to
* the left, and 2~subpixels to the right. The bitmap offset values are
* adjusted accordingly, so clients shouldn't need to modify their layout
* and glyph positioning code when enabling the filter.
*
* The ClearType and Harmony rendering is applicable to glyph bitmaps
* rendered through @FT_Render_Glyph, @FT_Load_Glyph, @FT_Load_Char, and
* @FT_Glyph_To_Bitmap, when @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V
* is specified. This API does not control @FT_Outline_Render and
* @FT_Outline_Get_Bitmap.
*
* The described algorithms can completely remove color artefacts when
* combined with gamma-corrected alpha blending in linear space. Each of
* the 3~alpha values (subpixels) must by independently used to blend one
* color channel. That is, red alpha blends the red channel of the text
* color with the red channel of the background pixel.
*/
/**************************************************************************
*
* @enum:
* FT_LcdFilter
*
* @description:
* A list of values to identify various types of LCD filters.
*
* @values:
* FT_LCD_FILTER_NONE ::
* Do not perform filtering. When used with subpixel rendering, this
* results in sometimes severe color fringes.
*
* FT_LCD_FILTER_DEFAULT ::
* This is a beveled, normalized, and color-balanced five-tap filter
* with weights of [0x08 0x4D 0x56 0x4D 0x08] in 1/256 units.
*
* FT_LCD_FILTER_LIGHT ::
* this is a boxy, normalized, and color-balanced three-tap filter with
* weights of [0x00 0x55 0x56 0x55 0x00] in 1/256 units.
*
* FT_LCD_FILTER_LEGACY ::
* FT_LCD_FILTER_LEGACY1 ::
* This filter corresponds to the original libXft color filter. It
* provides high contrast output but can exhibit really bad color
* fringes if glyphs are not extremely well hinted to the pixel grid.
* This filter is only provided for comparison purposes, and might be
* disabled or stay unsupported in the future. The second value is
* provided for compatibility with FontConfig, which historically used
* different enumeration, sometimes incorrectly forwarded to FreeType.
*
* @since:
* 2.3.0 (`FT_LCD_FILTER_LEGACY1` since 2.6.2)
*/
typedef enum FT_LcdFilter_
{
FT_LCD_FILTER_NONE = 0,
FT_LCD_FILTER_DEFAULT = 1,
FT_LCD_FILTER_LIGHT = 2,
FT_LCD_FILTER_LEGACY1 = 3,
FT_LCD_FILTER_LEGACY = 16,
FT_LCD_FILTER_MAX /* do not remove */
} FT_LcdFilter;
/**************************************************************************
*
* @function:
* FT_Library_SetLcdFilter
*
* @description:
* This function is used to change filter applied to LCD decimated
* bitmaps, like the ones used when calling @FT_Render_Glyph with
* @FT_RENDER_MODE_LCD or @FT_RENDER_MODE_LCD_V.
*
* @input:
* library ::
* A handle to the target library instance.
*
* filter ::
* The filter type.
*
* You can use @FT_LCD_FILTER_NONE here to disable this feature, or
* @FT_LCD_FILTER_DEFAULT to use a default filter that should work well
* on most LCD screens.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Since 2.10.3 the LCD filtering is enabled with @FT_LCD_FILTER_DEFAULT.
* It is no longer necessary to call this function explicitly except
* to choose a different filter or disable filtering altogether with
* @FT_LCD_FILTER_NONE.
*
* This function does nothing but returns `FT_Err_Unimplemented_Feature`
* if the configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is
* not defined in your build of the library.
*
* @since:
* 2.3.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdFilter( FT_Library library,
FT_LcdFilter filter );
/**************************************************************************
*
* @function:
* FT_Library_SetLcdFilterWeights
*
* @description:
* This function can be used to enable LCD filter with custom weights,
* instead of using presets in @FT_Library_SetLcdFilter.
*
* @input:
* library ::
* A handle to the target library instance.
*
* weights ::
* A pointer to an array; the function copies the first five bytes and
* uses them to specify the filter weights in 1/256 units.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does nothing but returns `FT_Err_Unimplemented_Feature`
* if the configuration macro `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is
* not defined in your build of the library.
*
* LCD filter weights can also be set per face using @FT_Face_Properties
* with @FT_PARAM_TAG_LCD_FILTER_WEIGHTS.
*
* @since:
* 2.4.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdFilterWeights( FT_Library library,
unsigned char *weights );
/**************************************************************************
*
* @type:
* FT_LcdFiveTapFilter
*
* @description:
* A typedef for passing the five LCD filter weights to
* @FT_Face_Properties within an @FT_Parameter structure.
*
* @since:
* 2.8
*
*/
#define FT_LCD_FILTER_FIVE_TAPS 5
typedef FT_Byte FT_LcdFiveTapFilter[FT_LCD_FILTER_FIVE_TAPS];
/**************************************************************************
*
* @function:
* FT_Library_SetLcdGeometry
*
* @description:
* This function can be used to modify default positions of color
* subpixels, which controls Harmony LCD rendering.
*
* @input:
* library ::
* A handle to the target library instance.
*
* sub ::
* A pointer to an array of 3 vectors in 26.6 fractional pixel format;
* the function modifies the default values, see the note below.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Subpixel geometry examples:
*
* - {{-21, 0}, {0, 0}, {21, 0}} is the default, corresponding to 3 color
* stripes shifted by a third of a pixel. This could be an RGB panel.
*
* - {{21, 0}, {0, 0}, {-21, 0}} looks the same as the default but can
* specify a BGR panel instead, while keeping the bitmap in the same
* RGB888 format.
*
* - {{0, 21}, {0, 0}, {0, -21}} is the vertical RGB, but the bitmap
* stays RGB888 as a result.
*
* - {{-11, 16}, {-11, -16}, {22, 0}} is a certain PenTile arrangement.
*
* This function does nothing and returns `FT_Err_Unimplemented_Feature`
* in the context of ClearType-style subpixel rendering when
* `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` is defined in your build of the
* library.
*
* @since:
* 2.10.0
*/
FT_EXPORT( FT_Error )
FT_Library_SetLcdGeometry( FT_Library library,
FT_Vector sub[3] );
/* */
FT_END_HEADER
#endif /* FTLCDFIL_H_ */
/* END */

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/****************************************************************************
*
* ftlist.h
*
* Generic list support for FreeType (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file implements functions relative to list processing. Its data
* structures are defined in `freetype.h`.
*
*/
#ifndef FTLIST_H_
#define FTLIST_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* list_processing
*
* @title:
* List Processing
*
* @abstract:
* Simple management of lists.
*
* @description:
* This section contains various definitions related to list processing
* using doubly-linked nodes.
*
* @order:
* FT_List
* FT_ListNode
* FT_ListRec
* FT_ListNodeRec
*
* FT_List_Add
* FT_List_Insert
* FT_List_Find
* FT_List_Remove
* FT_List_Up
* FT_List_Iterate
* FT_List_Iterator
* FT_List_Finalize
* FT_List_Destructor
*
*/
/**************************************************************************
*
* @function:
* FT_List_Find
*
* @description:
* Find the list node for a given listed object.
*
* @input:
* list ::
* A pointer to the parent list.
* data ::
* The address of the listed object.
*
* @return:
* List node. `NULL` if it wasn't found.
*/
FT_EXPORT( FT_ListNode )
FT_List_Find( FT_List list,
void* data );
/**************************************************************************
*
* @function:
* FT_List_Add
*
* @description:
* Append an element to the end of a list.
*
* @inout:
* list ::
* A pointer to the parent list.
* node ::
* The node to append.
*/
FT_EXPORT( void )
FT_List_Add( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Insert
*
* @description:
* Insert an element at the head of a list.
*
* @inout:
* list ::
* A pointer to parent list.
* node ::
* The node to insert.
*/
FT_EXPORT( void )
FT_List_Insert( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Remove
*
* @description:
* Remove a node from a list. This function doesn't check whether the
* node is in the list!
*
* @input:
* node ::
* The node to remove.
*
* @inout:
* list ::
* A pointer to the parent list.
*/
FT_EXPORT( void )
FT_List_Remove( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @function:
* FT_List_Up
*
* @description:
* Move a node to the head/top of a list. Used to maintain LRU lists.
*
* @inout:
* list ::
* A pointer to the parent list.
* node ::
* The node to move.
*/
FT_EXPORT( void )
FT_List_Up( FT_List list,
FT_ListNode node );
/**************************************************************************
*
* @functype:
* FT_List_Iterator
*
* @description:
* An FT_List iterator function that is called during a list parse by
* @FT_List_Iterate.
*
* @input:
* node ::
* The current iteration list node.
*
* user ::
* A typeless pointer passed to @FT_List_Iterate. Can be used to point
* to the iteration's state.
*/
typedef FT_Error
(*FT_List_Iterator)( FT_ListNode node,
void* user );
/**************************************************************************
*
* @function:
* FT_List_Iterate
*
* @description:
* Parse a list and calls a given iterator function on each element.
* Note that parsing is stopped as soon as one of the iterator calls
* returns a non-zero value.
*
* @input:
* list ::
* A handle to the list.
* iterator ::
* An iterator function, called on each node of the list.
* user ::
* A user-supplied field that is passed as the second argument to the
* iterator.
*
* @return:
* The result (a FreeType error code) of the last iterator call.
*/
FT_EXPORT( FT_Error )
FT_List_Iterate( FT_List list,
FT_List_Iterator iterator,
void* user );
/**************************************************************************
*
* @functype:
* FT_List_Destructor
*
* @description:
* An @FT_List iterator function that is called during a list
* finalization by @FT_List_Finalize to destroy all elements in a given
* list.
*
* @input:
* system ::
* The current system object.
*
* data ::
* The current object to destroy.
*
* user ::
* A typeless pointer passed to @FT_List_Iterate. It can be used to
* point to the iteration's state.
*/
typedef void
(*FT_List_Destructor)( FT_Memory memory,
void* data,
void* user );
/**************************************************************************
*
* @function:
* FT_List_Finalize
*
* @description:
* Destroy all elements in the list as well as the list itself.
*
* @input:
* list ::
* A handle to the list.
*
* destroy ::
* A list destructor that will be applied to each element of the list.
* Set this to `NULL` if not needed.
*
* memory ::
* The current memory object that handles deallocation.
*
* user ::
* A user-supplied field that is passed as the last argument to the
* destructor.
*
* @note:
* This function expects that all nodes added by @FT_List_Add or
* @FT_List_Insert have been dynamically allocated.
*/
FT_EXPORT( void )
FT_List_Finalize( FT_List list,
FT_List_Destructor destroy,
FT_Memory memory,
void* user );
/* */
FT_END_HEADER
#endif /* FTLIST_H_ */
/* END */

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/****************************************************************************
*
* ftlogging.h
*
* Additional debugging APIs.
*
* Copyright (C) 2020-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTLOGGING_H_
#define FTLOGGING_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* debugging_apis
*
* @title:
* External Debugging APIs
*
* @abstract:
* Public APIs to control the `FT_DEBUG_LOGGING` macro.
*
* @description:
* This section contains the declarations of public functions that
* enables fine control of what the `FT_DEBUG_LOGGING` macro outputs.
*
*/
/**************************************************************************
*
* @function:
* FT_Trace_Set_Level
*
* @description:
* Change the levels of tracing components of FreeType at run time.
*
* @input:
* tracing_level ::
* New tracing value.
*
* @example:
* The following call makes FreeType trace everything but the 'memory'
* component.
*
* ```
* FT_Trace_Set_Level( "any:7 memory:0" );
* ```
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Trace_Set_Level( const char* tracing_level );
/**************************************************************************
*
* @function:
* FT_Trace_Set_Default_Level
*
* @description:
* Reset tracing value of FreeType's components to the default value
* (i.e., to the value of the `FT2_DEBUG` environment value or to NULL
* if `FT2_DEBUG` is not set).
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Trace_Set_Default_Level( void );
/**************************************************************************
*
* @functype:
* FT_Custom_Log_Handler
*
* @description:
* A function typedef that is used to handle the logging of tracing and
* debug messages on a file system.
*
* @input:
* ft_component ::
* The name of `FT_COMPONENT` from which the current debug or error
* message is produced.
*
* fmt ::
* Actual debug or tracing message.
*
* args::
* Arguments of debug or tracing messages.
*
* @since:
* 2.11
*
*/
typedef void
(*FT_Custom_Log_Handler)( const char* ft_component,
const char* fmt,
va_list args );
/**************************************************************************
*
* @function:
* FT_Set_Log_Handler
*
* @description:
* A function to set a custom log handler.
*
* @input:
* handler ::
* New logging function.
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Set_Log_Handler( FT_Custom_Log_Handler handler );
/**************************************************************************
*
* @function:
* FT_Set_Default_Log_Handler
*
* @description:
* A function to undo the effect of @FT_Set_Log_Handler, resetting the
* log handler to FreeType's built-in version.
*
* @note:
* This function does nothing if compilation option `FT_DEBUG_LOGGING`
* isn't set.
*
* @since:
* 2.11
*
*/
FT_EXPORT( void )
FT_Set_Default_Log_Handler( void );
/* */
FT_END_HEADER
#endif /* FTLOGGING_H_ */
/* END */

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/****************************************************************************
*
* ftlzw.h
*
* LZW-compressed stream support.
*
* Copyright (C) 2004-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTLZW_H_
#define FTLZW_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* lzw
*
* @title:
* LZW Streams
*
* @abstract:
* Using LZW-compressed font files.
*
* @description:
* In certain builds of the library, LZW compression recognition is
* automatically handled when calling @FT_New_Face or @FT_Open_Face.
* This means that if no font driver is capable of handling the raw
* compressed file, the library will try to open a LZW stream from it and
* re-open the face with it.
*
* The stream implementation is very basic and resets the decompression
* process each time seeking backwards is needed within the stream,
* which significantly undermines the performance.
*
* This section contains the declaration of LZW-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Stream_OpenLZW
*
* @description:
* Open a new stream to parse LZW-compressed font files. This is mainly
* used to support the compressed `*.pcf.Z` fonts that come with XFree86.
*
* @input:
* stream ::
* The target embedding stream.
*
* source ::
* The source stream.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source stream must be opened _before_ calling this function.
*
* Calling the internal function `FT_Stream_Close` on the new stream will
* **not** call `FT_Stream_Close` on the source stream. None of the
* stream objects will be released to the heap.
*
* This function may return `FT_Err_Unimplemented_Feature` if your build
* of FreeType was not compiled with LZW support.
*/
FT_EXPORT( FT_Error )
FT_Stream_OpenLZW( FT_Stream stream,
FT_Stream source );
/* */
FT_END_HEADER
#endif /* FTLZW_H_ */
/* END */

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Example/include/freetype/ftmac.h
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/****************************************************************************
*
* ftmac.h
*
* Additional Mac-specific API.
*
* Copyright (C) 1996-2023 by
* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
* NOTE: Include this file after `FT_FREETYPE_H` and after any
* Mac-specific headers (because this header uses Mac types such as
* 'Handle', 'FSSpec', 'FSRef', etc.)
*
*/
#ifndef FTMAC_H_
#define FTMAC_H_
FT_BEGIN_HEADER
/* gcc-3.1 and later can warn about functions tagged as deprecated */
#ifndef FT_DEPRECATED_ATTRIBUTE
#if defined( __GNUC__ ) && \
( ( __GNUC__ >= 4 ) || \
( ( __GNUC__ == 3 ) && ( __GNUC_MINOR__ >= 1 ) ) )
#define FT_DEPRECATED_ATTRIBUTE __attribute__(( deprecated ))
#else
#define FT_DEPRECATED_ATTRIBUTE
#endif
#endif
/**************************************************************************
*
* @section:
* mac_specific
*
* @title:
* Mac Specific Interface
*
* @abstract:
* Only available on the Macintosh.
*
* @description:
* The following definitions are only available if FreeType is compiled
* on a Macintosh.
*
*/
/**************************************************************************
*
* @function:
* FT_New_Face_From_FOND
*
* @description:
* Create a new face object from a FOND resource.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* fond ::
* A FOND resource.
*
* face_index ::
* Only supported for the -1 'sanity check' special case.
*
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @example:
* This function can be used to create @FT_Face objects from fonts that
* are installed in the system as follows.
*
* ```
* fond = GetResource( 'FOND', fontName );
* error = FT_New_Face_From_FOND( library, fond, 0, &face );
* ```
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FOND( FT_Library library,
Handle fond,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFile_From_Mac_Name
*
* @description:
* Return an FSSpec for the disk file containing the named font.
*
* @input:
* fontName ::
* Mac OS name of the font (e.g., Times New Roman Bold).
*
* @output:
* pathSpec ::
* FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face_From_FSSpec.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFile_From_Mac_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFile_From_Mac_ATS_Name
*
* @description:
* Return an FSSpec for the disk file containing the named font.
*
* @input:
* fontName ::
* Mac OS name of the font in ATS framework.
*
* @output:
* pathSpec ::
* FSSpec to the file. For passing to @FT_New_Face_From_FSSpec.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face_From_FSSpec.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFile_From_Mac_ATS_Name( const char* fontName,
FSSpec* pathSpec,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_GetFilePath_From_Mac_ATS_Name
*
* @description:
* Return a pathname of the disk file and face index for given font name
* that is handled by ATS framework.
*
* @input:
* fontName ::
* Mac OS name of the font in ATS framework.
*
* @output:
* path ::
* Buffer to store pathname of the file. For passing to @FT_New_Face.
* The client must allocate this buffer before calling this function.
*
* maxPathSize ::
* Lengths of the buffer `path` that client allocated.
*
* face_index ::
* Index of the face. For passing to @FT_New_Face.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_GetFilePath_From_Mac_ATS_Name( const char* fontName,
UInt8* path,
UInt32 maxPathSize,
FT_Long* face_index )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_New_Face_From_FSSpec
*
* @description:
* Create a new face object from a given resource and typeface index
* using an FSSpec to the font file.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* spec ::
* FSSpec to the font file.
*
* face_index ::
* The index of the face within the resource. The first face has
* index~0.
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* @FT_New_Face_From_FSSpec is identical to @FT_New_Face except it
* accepts an FSSpec instead of a path.
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FSSpec( FT_Library library,
const FSSpec *spec,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/**************************************************************************
*
* @function:
* FT_New_Face_From_FSRef
*
* @description:
* Create a new face object from a given resource and typeface index
* using an FSRef to the font file.
*
* @inout:
* library ::
* A handle to the library resource.
*
* @input:
* spec ::
* FSRef to the font file.
*
* face_index ::
* The index of the face within the resource. The first face has
* index~0.
* @output:
* aface ::
* A handle to a new face object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* @FT_New_Face_From_FSRef is identical to @FT_New_Face except it accepts
* an FSRef instead of a path.
*/
FT_EXPORT( FT_Error )
FT_New_Face_From_FSRef( FT_Library library,
const FSRef *ref,
FT_Long face_index,
FT_Face *aface )
FT_DEPRECATED_ATTRIBUTE;
/* */
FT_END_HEADER
#endif /* FTMAC_H_ */
/* END */

805
Example/include/freetype/ftmm.h
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/****************************************************************************
*
* ftmm.h
*
* FreeType Multiple Master font interface (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMM_H_
#define FTMM_H_
#include <freetype/t1tables.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* multiple_masters
*
* @title:
* Multiple Masters
*
* @abstract:
* How to manage Multiple Masters fonts.
*
* @description:
* The following types and functions are used to manage Multiple Master
* fonts, i.e., the selection of specific design instances by setting
* design axis coordinates.
*
* Besides Adobe MM fonts, the interface supports Apple's TrueType GX and
* OpenType variation fonts. Some of the routines only work with Adobe
* MM fonts, others will work with all three types. They are similar
* enough that a consistent interface makes sense.
*
* For Adobe MM fonts, macro @FT_IS_SFNT returns false. For GX and
* OpenType variation fonts, it returns true.
*
*/
/**************************************************************************
*
* @struct:
* FT_MM_Axis
*
* @description:
* A structure to model a given axis in design space for Multiple Masters
* fonts.
*
* This structure can't be used for TrueType GX or OpenType variation
* fonts.
*
* @fields:
* name ::
* The axis's name.
*
* minimum ::
* The axis's minimum design coordinate.
*
* maximum ::
* The axis's maximum design coordinate.
*/
typedef struct FT_MM_Axis_
{
FT_String* name;
FT_Long minimum;
FT_Long maximum;
} FT_MM_Axis;
/**************************************************************************
*
* @struct:
* FT_Multi_Master
*
* @description:
* A structure to model the axes and space of a Multiple Masters font.
*
* This structure can't be used for TrueType GX or OpenType variation
* fonts.
*
* @fields:
* num_axis ::
* Number of axes. Cannot exceed~4.
*
* num_designs ::
* Number of designs; should be normally 2^num_axis even though the
* Type~1 specification strangely allows for intermediate designs to be
* present. This number cannot exceed~16.
*
* axis ::
* A table of axis descriptors.
*/
typedef struct FT_Multi_Master_
{
FT_UInt num_axis;
FT_UInt num_designs;
FT_MM_Axis axis[T1_MAX_MM_AXIS];
} FT_Multi_Master;
/**************************************************************************
*
* @struct:
* FT_Var_Axis
*
* @description:
* A structure to model a given axis in design space for Multiple
* Masters, TrueType GX, and OpenType variation fonts.
*
* @fields:
* name ::
* The axis's name. Not always meaningful for TrueType GX or OpenType
* variation fonts.
*
* minimum ::
* The axis's minimum design coordinate.
*
* def ::
* The axis's default design coordinate. FreeType computes meaningful
* default values for Adobe MM fonts.
*
* maximum ::
* The axis's maximum design coordinate.
*
* tag ::
* The axis's tag (the equivalent to 'name' for TrueType GX and
* OpenType variation fonts). FreeType provides default values for
* Adobe MM fonts if possible.
*
* strid ::
* The axis name entry in the font's 'name' table. This is another
* (and often better) version of the 'name' field for TrueType GX or
* OpenType variation fonts. Not meaningful for Adobe MM fonts.
*
* @note:
* The fields `minimum`, `def`, and `maximum` are 16.16 fractional values
* for TrueType GX and OpenType variation fonts. For Adobe MM fonts, the
* values are whole numbers (i.e., the fractional part is zero).
*/
typedef struct FT_Var_Axis_
{
FT_String* name;
FT_Fixed minimum;
FT_Fixed def;
FT_Fixed maximum;
FT_ULong tag;
FT_UInt strid;
} FT_Var_Axis;
/**************************************************************************
*
* @struct:
* FT_Var_Named_Style
*
* @description:
* A structure to model a named instance in a TrueType GX or OpenType
* variation font.
*
* This structure can't be used for Adobe MM fonts.
*
* @fields:
* coords ::
* The design coordinates for this instance. This is an array with one
* entry for each axis.
*
* strid ::
* The entry in 'name' table identifying this instance.
*
* psid ::
* The entry in 'name' table identifying a PostScript name for this
* instance. Value 0xFFFF indicates a missing entry.
*/
typedef struct FT_Var_Named_Style_
{
FT_Fixed* coords;
FT_UInt strid;
FT_UInt psid; /* since 2.7.1 */
} FT_Var_Named_Style;
/**************************************************************************
*
* @struct:
* FT_MM_Var
*
* @description:
* A structure to model the axes and space of an Adobe MM, TrueType GX,
* or OpenType variation font.
*
* Some fields are specific to one format and not to the others.
*
* @fields:
* num_axis ::
* The number of axes. The maximum value is~4 for Adobe MM fonts; no
* limit in TrueType GX or OpenType variation fonts.
*
* num_designs ::
* The number of designs; should be normally 2^num_axis for Adobe MM
* fonts. Not meaningful for TrueType GX or OpenType variation fonts
* (where every glyph could have a different number of designs).
*
* num_namedstyles ::
* The number of named styles; a 'named style' is a tuple of design
* coordinates that has a string ID (in the 'name' table) associated
* with it. The font can tell the user that, for example,
* [Weight=1.5,Width=1.1] is 'Bold'. Another name for 'named style' is
* 'named instance'.
*
* For Adobe Multiple Masters fonts, this value is always zero because
* the format does not support named styles.
*
* axis ::
* An axis descriptor table. TrueType GX and OpenType variation fonts
* contain slightly more data than Adobe MM fonts. Memory management
* of this pointer is done internally by FreeType.
*
* namedstyle ::
* A named style (instance) table. Only meaningful for TrueType GX and
* OpenType variation fonts. Memory management of this pointer is done
* internally by FreeType.
*/
typedef struct FT_MM_Var_
{
FT_UInt num_axis;
FT_UInt num_designs;
FT_UInt num_namedstyles;
FT_Var_Axis* axis;
FT_Var_Named_Style* namedstyle;
} FT_MM_Var;
/**************************************************************************
*
* @function:
* FT_Get_Multi_Master
*
* @description:
* Retrieve a variation descriptor of a given Adobe MM font.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* amaster ::
* The Multiple Masters descriptor.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Get_Multi_Master( FT_Face face,
FT_Multi_Master *amaster );
/**************************************************************************
*
* @function:
* FT_Get_MM_Var
*
* @description:
* Retrieve a variation descriptor for a given font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* amaster ::
* The variation descriptor. Allocates a data structure, which the
* user must deallocate with a call to @FT_Done_MM_Var after use.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Get_MM_Var( FT_Face face,
FT_MM_Var* *amaster );
/**************************************************************************
*
* @function:
* FT_Done_MM_Var
*
* @description:
* Free the memory allocated by @FT_Get_MM_Var.
*
* @input:
* library ::
* A handle of the face's parent library object that was used in the
* call to @FT_Get_MM_Var to create `amaster`.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_MM_Var( FT_Library library,
FT_MM_Var *amaster );
/**************************************************************************
*
* @function:
* FT_Set_MM_Design_Coordinates
*
* @description:
* For Adobe MM fonts, choose an interpolated font design through design
* coordinates.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* An array of design coordinates.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_MM_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
/**************************************************************************
*
* @function:
* FT_Set_Var_Design_Coordinates
*
* @description:
* Choose an interpolated font design through design coordinates.
*
* This function works with all supported variation formats.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* An array of design coordinates.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The design coordinates are 16.16 fractional values for TrueType GX and
* OpenType variation fonts. For Adobe MM fonts, the values are supposed
* to be whole numbers (i.e., the fractional part is zero).
*
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
* [Since 2.9] 'Default values' means the currently selected named
* instance (or the base font if no named instance is selected).
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_Var_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_Var_Design_Coordinates
*
* @description:
* Get the design coordinates of the currently selected interpolated
* font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* num_coords ::
* The number of design coordinates to retrieve. If it is larger than
* the number of axes, set the excess values to~0.
*
* @output:
* coords ::
* The design coordinates array.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The design coordinates are 16.16 fractional values for TrueType GX and
* OpenType variation fonts. For Adobe MM fonts, the values are whole
* numbers (i.e., the fractional part is zero).
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Design_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_MM_Blend_Coordinates
*
* @description:
* Choose an interpolated font design through normalized blend
* coordinates.
*
* This function works with all supported variation formats.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* num_coords ::
* The number of available design coordinates. If it is larger than
* the number of axes, ignore the excess values. If it is smaller than
* the number of axes, use default values for the remaining axes.
*
* coords ::
* The design coordinates array. Each element is a 16.16 fractional
* value and must be between 0 and 1.0 for Adobe MM fonts, and between
* -1.0 and 1.0 for TrueType GX and OpenType variation fonts.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* [Since 2.8.1] To reset all axes to the default values, call the
* function with `num_coords` set to zero and `coords` set to `NULL`.
* [Since 2.9] 'Default values' means the currently selected named
* instance (or the base font if no named instance is selected).
*
* [Since 2.9] If `num_coords` is larger than zero, this function sets
* the @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field
* (i.e., @FT_IS_VARIATION will return true). If `num_coords` is zero,
* this bit flag gets unset.
*/
FT_EXPORT( FT_Error )
FT_Set_MM_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_MM_Blend_Coordinates
*
* @description:
* Get the normalized blend coordinates of the currently selected
* interpolated font.
*
* This function works with all supported variation formats.
*
* @input:
* face ::
* A handle to the source face.
*
* num_coords ::
* The number of normalized blend coordinates to retrieve. If it is
* larger than the number of axes, set the excess values to~0.5 for
* Adobe MM fonts, and to~0 for TrueType GX and OpenType variation
* fonts.
*
* @output:
* coords ::
* The normalized blend coordinates array (as 16.16 fractional values).
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_MM_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_Var_Blend_Coordinates
*
* @description:
* This is another name of @FT_Set_MM_Blend_Coordinates.
*/
FT_EXPORT( FT_Error )
FT_Set_Var_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Get_Var_Blend_Coordinates
*
* @description:
* This is another name of @FT_Get_MM_Blend_Coordinates.
*
* @since:
* 2.7.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Blend_Coordinates( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/**************************************************************************
*
* @function:
* FT_Set_MM_WeightVector
*
* @description:
* For Adobe MM fonts, choose an interpolated font design by directly
* setting the weight vector.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* @input:
* len ::
* The length of the weight vector array. If it is larger than the
* number of designs, the extra values are ignored. If it is less than
* the number of designs, the remaining values are set to zero.
*
* weightvector ::
* An array representing the weight vector.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Adobe Multiple Master fonts limit the number of designs, and thus the
* length of the weight vector to 16~elements.
*
* If `len` is larger than zero, this function sets the
* @FT_FACE_FLAG_VARIATION bit in @FT_Face's `face_flags` field (i.e.,
* @FT_IS_VARIATION will return true). If `len` is zero, this bit flag
* is unset and the weight vector array is reset to the default values.
*
* The Adobe documentation also states that the values in the
* WeightVector array must total 1.0 +/-~0.001. In practice this does
* not seem to be enforced, so is not enforced here, either.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Set_MM_WeightVector( FT_Face face,
FT_UInt len,
FT_Fixed* weightvector );
/**************************************************************************
*
* @function:
* FT_Get_MM_WeightVector
*
* @description:
* For Adobe MM fonts, retrieve the current weight vector of the font.
*
* This function can't be used with TrueType GX or OpenType variation
* fonts.
*
* @inout:
* face ::
* A handle to the source face.
*
* len ::
* A pointer to the size of the array to be filled. If the size of the
* array is less than the number of designs, `FT_Err_Invalid_Argument`
* is returned, and `len` is set to the required size (the number of
* designs). If the size of the array is greater than the number of
* designs, the remaining entries are set to~0. On successful
* completion, `len` is set to the number of designs (i.e., the number
* of values written to the array).
*
* @output:
* weightvector ::
* An array to be filled.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Adobe Multiple Master fonts limit the number of designs, and thus the
* length of the WeightVector to~16.
*
* @since:
* 2.10
*/
FT_EXPORT( FT_Error )
FT_Get_MM_WeightVector( FT_Face face,
FT_UInt* len,
FT_Fixed* weightvector );
/**************************************************************************
*
* @enum:
* FT_VAR_AXIS_FLAG_XXX
*
* @description:
* A list of bit flags used in the return value of
* @FT_Get_Var_Axis_Flags.
*
* @values:
* FT_VAR_AXIS_FLAG_HIDDEN ::
* The variation axis should not be exposed to user interfaces.
*
* @since:
* 2.8.1
*/
#define FT_VAR_AXIS_FLAG_HIDDEN 1
/**************************************************************************
*
* @function:
* FT_Get_Var_Axis_Flags
*
* @description:
* Get the 'flags' field of an OpenType Variation Axis Record.
*
* Not meaningful for Adobe MM fonts (`*flags` is always zero).
*
* @input:
* master ::
* The variation descriptor.
*
* axis_index ::
* The index of the requested variation axis.
*
* @output:
* flags ::
* The 'flags' field. See @FT_VAR_AXIS_FLAG_XXX for possible values.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.8.1
*/
FT_EXPORT( FT_Error )
FT_Get_Var_Axis_Flags( FT_MM_Var* master,
FT_UInt axis_index,
FT_UInt* flags );
/**************************************************************************
*
* @function:
* FT_Set_Named_Instance
*
* @description:
* Set or change the current named instance.
*
* @input:
* face ::
* A handle to the source face.
*
* instance_index ::
* The index of the requested instance, starting with value 1. If set
* to value 0, FreeType switches to font access without a named
* instance.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The function uses the value of `instance_index` to set bits 16-30 of
* the face's `face_index` field. It also resets any variation applied
* to the font, and the @FT_FACE_FLAG_VARIATION bit of the face's
* `face_flags` field gets reset to zero (i.e., @FT_IS_VARIATION will
* return false).
*
* For Adobe MM fonts (which don't have named instances) this function
* simply resets the current face to the default instance.
*
* @since:
* 2.9
*/
FT_EXPORT( FT_Error )
FT_Set_Named_Instance( FT_Face face,
FT_UInt instance_index );
/**************************************************************************
*
* @function:
* FT_Get_Default_Named_Instance
*
* @description:
* Retrieve the index of the default named instance, to be used with
* @FT_Set_Named_Instance.
*
* The default instance of a variation font is that instance for which
* the nth axis coordinate is equal to `axis[n].def` (as specified in the
* @FT_MM_Var structure), with~n covering all axes.
*
* FreeType synthesizes a named instance for the default instance if the
* font does not contain such an entry.
*
* @input:
* face ::
* A handle to the source face.
*
* @output:
* instance_index ::
* The index of the default named instance.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* For Adobe MM fonts (which don't have named instances) this function
* always returns zero for `instance_index`.
*
* @since:
* 2.13.1
*/
FT_EXPORT( FT_Error )
FT_Get_Default_Named_Instance( FT_Face face,
FT_UInt *instance_index );
/* */
FT_END_HEADER
#endif /* FTMM_H_ */
/* END */

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Example/include/freetype/ftmodapi.h
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/****************************************************************************
*
* ftmodapi.h
*
* FreeType modules public interface (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMODAPI_H_
#define FTMODAPI_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* module_management
*
* @title:
* Module Management
*
* @abstract:
* How to add, upgrade, remove, and control modules from FreeType.
*
* @description:
* The definitions below are used to manage modules within FreeType.
* Internal and external modules can be added, upgraded, and removed at
* runtime. For example, an alternative renderer or proprietary font
* driver can be registered and prioritized. Additionally, some module
* properties can also be controlled.
*
* Here is a list of existing values of the `module_name` field in the
* @FT_Module_Class structure.
*
* ```
* autofitter
* bdf
* cff
* gxvalid
* otvalid
* pcf
* pfr
* psaux
* pshinter
* psnames
* raster1
* sfnt
* smooth
* truetype
* type1
* type42
* t1cid
* winfonts
* ```
*
* Note that the FreeType Cache sub-system is not a FreeType module.
*
* @order:
* FT_Module
* FT_Module_Constructor
* FT_Module_Destructor
* FT_Module_Requester
* FT_Module_Class
*
* FT_Add_Module
* FT_Get_Module
* FT_Remove_Module
* FT_Add_Default_Modules
*
* FT_FACE_DRIVER_NAME
* FT_Property_Set
* FT_Property_Get
* FT_Set_Default_Properties
*
* FT_New_Library
* FT_Done_Library
* FT_Reference_Library
*
* FT_Renderer
* FT_Renderer_Class
*
* FT_Get_Renderer
* FT_Set_Renderer
*
* FT_Set_Debug_Hook
*
*/
/* module bit flags */
#define FT_MODULE_FONT_DRIVER 1 /* this module is a font driver */
#define FT_MODULE_RENDERER 2 /* this module is a renderer */
#define FT_MODULE_HINTER 4 /* this module is a glyph hinter */
#define FT_MODULE_STYLER 8 /* this module is a styler */
#define FT_MODULE_DRIVER_SCALABLE 0x100 /* the driver supports */
/* scalable fonts */
#define FT_MODULE_DRIVER_NO_OUTLINES 0x200 /* the driver does not */
/* support vector outlines */
#define FT_MODULE_DRIVER_HAS_HINTER 0x400 /* the driver provides its */
/* own hinter */
#define FT_MODULE_DRIVER_HINTS_LIGHTLY 0x800 /* the driver's hinter */
/* produces LIGHT hints */
/* deprecated values */
#define ft_module_font_driver FT_MODULE_FONT_DRIVER
#define ft_module_renderer FT_MODULE_RENDERER
#define ft_module_hinter FT_MODULE_HINTER
#define ft_module_styler FT_MODULE_STYLER
#define ft_module_driver_scalable FT_MODULE_DRIVER_SCALABLE
#define ft_module_driver_no_outlines FT_MODULE_DRIVER_NO_OUTLINES
#define ft_module_driver_has_hinter FT_MODULE_DRIVER_HAS_HINTER
#define ft_module_driver_hints_lightly FT_MODULE_DRIVER_HINTS_LIGHTLY
typedef FT_Pointer FT_Module_Interface;
/**************************************************************************
*
* @functype:
* FT_Module_Constructor
*
* @description:
* A function used to initialize (not create) a new module object.
*
* @input:
* module ::
* The module to initialize.
*/
typedef FT_Error
(*FT_Module_Constructor)( FT_Module module );
/**************************************************************************
*
* @functype:
* FT_Module_Destructor
*
* @description:
* A function used to finalize (not destroy) a given module object.
*
* @input:
* module ::
* The module to finalize.
*/
typedef void
(*FT_Module_Destructor)( FT_Module module );
/**************************************************************************
*
* @functype:
* FT_Module_Requester
*
* @description:
* A function used to query a given module for a specific interface.
*
* @input:
* module ::
* The module to be searched.
*
* name ::
* The name of the interface in the module.
*/
typedef FT_Module_Interface
(*FT_Module_Requester)( FT_Module module,
const char* name );
/**************************************************************************
*
* @struct:
* FT_Module_Class
*
* @description:
* The module class descriptor. While being a public structure necessary
* for FreeType's module bookkeeping, most of the fields are essentially
* internal, not to be used directly by an application.
*
* @fields:
* module_flags ::
* Bit flags describing the module.
*
* module_size ::
* The size of one module object/instance in bytes.
*
* module_name ::
* The name of the module.
*
* module_version ::
* The version, as a 16.16 fixed number (major.minor).
*
* module_requires ::
* The version of FreeType this module requires, as a 16.16 fixed
* number (major.minor). Starts at version 2.0, i.e., 0x20000.
*
* module_interface ::
* A typeless pointer to a structure (which varies between different
* modules) that holds the module's interface functions. This is
* essentially what `get_interface` returns.
*
* module_init ::
* The initializing function.
*
* module_done ::
* The finalizing function.
*
* get_interface ::
* The interface requesting function.
*/
typedef struct FT_Module_Class_
{
FT_ULong module_flags;
FT_Long module_size;
const FT_String* module_name;
FT_Fixed module_version;
FT_Fixed module_requires;
const void* module_interface;
FT_Module_Constructor module_init;
FT_Module_Destructor module_done;
FT_Module_Requester get_interface;
} FT_Module_Class;
/**************************************************************************
*
* @function:
* FT_Add_Module
*
* @description:
* Add a new module to a given library instance.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* clazz ::
* A pointer to class descriptor for the module.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An error will be returned if a module already exists by that name, or
* if the module requires a version of FreeType that is too great.
*/
FT_EXPORT( FT_Error )
FT_Add_Module( FT_Library library,
const FT_Module_Class* clazz );
/**************************************************************************
*
* @function:
* FT_Get_Module
*
* @description:
* Find a module by its name.
*
* @input:
* library ::
* A handle to the library object.
*
* module_name ::
* The module's name (as an ASCII string).
*
* @return:
* A module handle. 0~if none was found.
*
* @note:
* FreeType's internal modules aren't documented very well, and you
* should look up the source code for details.
*/
FT_EXPORT( FT_Module )
FT_Get_Module( FT_Library library,
const char* module_name );
/**************************************************************************
*
* @function:
* FT_Remove_Module
*
* @description:
* Remove a given module from a library instance.
*
* @inout:
* library ::
* A handle to a library object.
*
* @input:
* module ::
* A handle to a module object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The module object is destroyed by the function in case of success.
*/
FT_EXPORT( FT_Error )
FT_Remove_Module( FT_Library library,
FT_Module module );
/**************************************************************************
*
* @macro:
* FT_FACE_DRIVER_NAME
*
* @description:
* A macro that retrieves the name of a font driver from a face object.
*
* @note:
* The font driver name is a valid `module_name` for @FT_Property_Set
* and @FT_Property_Get. This is not the same as @FT_Get_Font_Format.
*
* @since:
* 2.11
*
*/
#define FT_FACE_DRIVER_NAME( face ) \
( ( *FT_REINTERPRET_CAST( FT_Module_Class**, \
( face )->driver ) )->module_name )
/**************************************************************************
*
* @function:
* FT_Property_Set
*
* @description:
* Set a property for a given module.
*
* @input:
* library ::
* A handle to the library the module is part of.
*
* module_name ::
* The module name.
*
* property_name ::
* The property name. Properties are described in section
* @properties.
*
* Note that only a few modules have properties.
*
* value ::
* A generic pointer to a variable or structure that gives the new
* value of the property. The exact definition of `value` is
* dependent on the property; see section @properties.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `module_name` isn't a valid module name, or `property_name`
* doesn't specify a valid property, or if `value` doesn't represent a
* valid value for the given property, an error is returned.
*
* The following example sets property 'bar' (a simple integer) in
* module 'foo' to value~1.
*
* ```
* FT_UInt bar;
*
*
* bar = 1;
* FT_Property_Set( library, "foo", "bar", &bar );
* ```
*
* Note that the FreeType Cache sub-system doesn't recognize module
* property changes. To avoid glyph lookup confusion within the cache
* you should call @FTC_Manager_Reset to completely flush the cache if a
* module property gets changed after @FTC_Manager_New has been called.
*
* It is not possible to set properties of the FreeType Cache sub-system
* itself with FT_Property_Set; use @FTC_Property_Set instead.
*
* @since:
* 2.4.11
*
*/
FT_EXPORT( FT_Error )
FT_Property_Set( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
const void* value );
/**************************************************************************
*
* @function:
* FT_Property_Get
*
* @description:
* Get a module's property value.
*
* @input:
* library ::
* A handle to the library the module is part of.
*
* module_name ::
* The module name.
*
* property_name ::
* The property name. Properties are described in section
* @properties.
*
* @inout:
* value ::
* A generic pointer to a variable or structure that gives the value
* of the property. The exact definition of `value` is dependent on
* the property; see section @properties.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `module_name` isn't a valid module name, or `property_name`
* doesn't specify a valid property, or if `value` doesn't represent a
* valid value for the given property, an error is returned.
*
* The following example gets property 'baz' (a range) in module 'foo'.
*
* ```
* typedef range_
* {
* FT_Int32 min;
* FT_Int32 max;
*
* } range;
*
* range baz;
*
*
* FT_Property_Get( library, "foo", "baz", &baz );
* ```
*
* It is not possible to retrieve properties of the FreeType Cache
* sub-system with FT_Property_Get; use @FTC_Property_Get instead.
*
* @since:
* 2.4.11
*
*/
FT_EXPORT( FT_Error )
FT_Property_Get( FT_Library library,
const FT_String* module_name,
const FT_String* property_name,
void* value );
/**************************************************************************
*
* @function:
* FT_Set_Default_Properties
*
* @description:
* If compilation option `FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES` is
* set, this function reads the `FREETYPE_PROPERTIES` environment
* variable to control driver properties. See section @properties for
* more.
*
* If the compilation option is not set, this function does nothing.
*
* `FREETYPE_PROPERTIES` has the following syntax form (broken here into
* multiple lines for better readability).
*
* ```
* <optional whitespace>
* <module-name1> ':'
* <property-name1> '=' <property-value1>
* <whitespace>
* <module-name2> ':'
* <property-name2> '=' <property-value2>
* ...
* ```
*
* Example:
*
* ```
* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
* cff:no-stem-darkening=0
* ```
*
* @inout:
* library ::
* A handle to a new library object.
*
* @since:
* 2.8
*/
FT_EXPORT( void )
FT_Set_Default_Properties( FT_Library library );
/**************************************************************************
*
* @function:
* FT_Reference_Library
*
* @description:
* A counter gets initialized to~1 at the time an @FT_Library structure
* is created. This function increments the counter. @FT_Done_Library
* then only destroys a library if the counter is~1, otherwise it simply
* decrements the counter.
*
* This function helps in managing life-cycles of structures that
* reference @FT_Library objects.
*
* @input:
* library ::
* A handle to a target library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @since:
* 2.4.2
*/
FT_EXPORT( FT_Error )
FT_Reference_Library( FT_Library library );
/**************************************************************************
*
* @function:
* FT_New_Library
*
* @description:
* This function is used to create a new FreeType library instance from a
* given memory object. It is thus possible to use libraries with
* distinct memory allocators within the same program. Note, however,
* that the used @FT_Memory structure is expected to remain valid for the
* life of the @FT_Library object.
*
* Normally, you would call this function (followed by a call to
* @FT_Add_Default_Modules or a series of calls to @FT_Add_Module, and a
* call to @FT_Set_Default_Properties) instead of @FT_Init_FreeType to
* initialize the FreeType library.
*
* Don't use @FT_Done_FreeType but @FT_Done_Library to destroy a library
* instance.
*
* @input:
* memory ::
* A handle to the original memory object.
*
* @output:
* alibrary ::
* A pointer to handle of a new library object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Library.
*/
FT_EXPORT( FT_Error )
FT_New_Library( FT_Memory memory,
FT_Library *alibrary );
/**************************************************************************
*
* @function:
* FT_Done_Library
*
* @description:
* Discard a given library object. This closes all drivers and discards
* all resource objects.
*
* @input:
* library ::
* A handle to the target library.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* See the discussion of reference counters in the description of
* @FT_Reference_Library.
*/
FT_EXPORT( FT_Error )
FT_Done_Library( FT_Library library );
/**************************************************************************
*
* @functype:
* FT_DebugHook_Func
*
* @description:
* A drop-in replacement (or rather a wrapper) for the bytecode or
* charstring interpreter's main loop function.
*
* Its job is essentially
*
* - to activate debug mode to enforce single-stepping,
*
* - to call the main loop function to interpret the next opcode, and
*
* - to show the changed context to the user.
*
* An example for such a main loop function is `TT_RunIns` (declared in
* FreeType's internal header file `src/truetype/ttinterp.h`).
*
* Have a look at the source code of the `ttdebug` FreeType demo program
* for an example of a drop-in replacement.
*
* @inout:
* arg ::
* A typeless pointer, to be cast to the main loop function's data
* structure (which depends on the font module). For TrueType fonts
* it is bytecode interpreter's execution context, `TT_ExecContext`,
* which is declared in FreeType's internal header file `tttypes.h`.
*/
typedef FT_Error
(*FT_DebugHook_Func)( void* arg );
/**************************************************************************
*
* @enum:
* FT_DEBUG_HOOK_XXX
*
* @description:
* A list of named debug hook indices.
*
* @values:
* FT_DEBUG_HOOK_TRUETYPE::
* This hook index identifies the TrueType bytecode debugger.
*/
#define FT_DEBUG_HOOK_TRUETYPE 0
/**************************************************************************
*
* @function:
* FT_Set_Debug_Hook
*
* @description:
* Set a debug hook function for debugging the interpreter of a font
* format.
*
* While this is a public API function, an application needs access to
* FreeType's internal header files to do something useful.
*
* Have a look at the source code of the `ttdebug` FreeType demo program
* for an example of its usage.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* hook_index ::
* The index of the debug hook. You should use defined enumeration
* macros like @FT_DEBUG_HOOK_TRUETYPE.
*
* debug_hook ::
* The function used to debug the interpreter.
*
* @note:
* Currently, four debug hook slots are available, but only one (for the
* TrueType interpreter) is defined.
*/
FT_EXPORT( void )
FT_Set_Debug_Hook( FT_Library library,
FT_UInt hook_index,
FT_DebugHook_Func debug_hook );
/**************************************************************************
*
* @function:
* FT_Add_Default_Modules
*
* @description:
* Add the set of default drivers to a given library object. This is
* only useful when you create a library object with @FT_New_Library
* (usually to plug a custom memory manager).
*
* @inout:
* library ::
* A handle to a new library object.
*/
FT_EXPORT( void )
FT_Add_Default_Modules( FT_Library library );
/**************************************************************************
*
* @section:
* truetype_engine
*
* @title:
* The TrueType Engine
*
* @abstract:
* TrueType bytecode support.
*
* @description:
* This section contains a function used to query the level of TrueType
* bytecode support compiled in this version of the library.
*
*/
/**************************************************************************
*
* @enum:
* FT_TrueTypeEngineType
*
* @description:
* A list of values describing which kind of TrueType bytecode engine is
* implemented in a given FT_Library instance. It is used by the
* @FT_Get_TrueType_Engine_Type function.
*
* @values:
* FT_TRUETYPE_ENGINE_TYPE_NONE ::
* The library doesn't implement any kind of bytecode interpreter.
*
* FT_TRUETYPE_ENGINE_TYPE_UNPATENTED ::
* Deprecated and removed.
*
* FT_TRUETYPE_ENGINE_TYPE_PATENTED ::
* The library implements a bytecode interpreter that covers the full
* instruction set of the TrueType virtual machine (this was governed
* by patents until May 2010, hence the name).
*
* @since:
* 2.2
*
*/
typedef enum FT_TrueTypeEngineType_
{
FT_TRUETYPE_ENGINE_TYPE_NONE = 0,
FT_TRUETYPE_ENGINE_TYPE_UNPATENTED,
FT_TRUETYPE_ENGINE_TYPE_PATENTED
} FT_TrueTypeEngineType;
/**************************************************************************
*
* @function:
* FT_Get_TrueType_Engine_Type
*
* @description:
* Return an @FT_TrueTypeEngineType value to indicate which level of the
* TrueType virtual machine a given library instance supports.
*
* @input:
* library ::
* A library instance.
*
* @return:
* A value indicating which level is supported.
*
* @since:
* 2.2
*
*/
FT_EXPORT( FT_TrueTypeEngineType )
FT_Get_TrueType_Engine_Type( FT_Library library );
/* */
FT_END_HEADER
#endif /* FTMODAPI_H_ */
/* END */

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Example/include/freetype/ftmoderr.h
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/****************************************************************************
*
* ftmoderr.h
*
* FreeType module error offsets (specification).
*
* Copyright (C) 2001-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* This file is used to define the FreeType module error codes.
*
* If the macro `FT_CONFIG_OPTION_USE_MODULE_ERRORS` in `ftoption.h` is
* set, the lower byte of an error value identifies the error code as
* usual. In addition, the higher byte identifies the module. For
* example, the error `FT_Err_Invalid_File_Format` has value 0x0003, the
* error `TT_Err_Invalid_File_Format` has value 0x1303, the error
* `T1_Err_Invalid_File_Format` has value 0x1403, etc.
*
* Note that `FT_Err_Ok`, `TT_Err_Ok`, etc. are always equal to zero,
* including the high byte.
*
* If `FT_CONFIG_OPTION_USE_MODULE_ERRORS` isn't set, the higher byte of an
* error value is set to zero.
*
* To hide the various `XXX_Err_` prefixes in the source code, FreeType
* provides some macros in `fttypes.h`.
*
* FT_ERR( err )
*
* Add current error module prefix (as defined with the `FT_ERR_PREFIX`
* macro) to `err`. For example, in the BDF module the line
*
* ```
* error = FT_ERR( Invalid_Outline );
* ```
*
* expands to
*
* ```
* error = BDF_Err_Invalid_Outline;
* ```
*
* For simplicity, you can always use `FT_Err_Ok` directly instead of
* `FT_ERR( Ok )`.
*
* FT_ERR_EQ( errcode, err )
* FT_ERR_NEQ( errcode, err )
*
* Compare error code `errcode` with the error `err` for equality and
* inequality, respectively. Example:
*
* ```
* if ( FT_ERR_EQ( error, Invalid_Outline ) )
* ...
* ```
*
* Using this macro you don't have to think about error prefixes. Of
* course, if module errors are not active, the above example is the
* same as
*
* ```
* if ( error == FT_Err_Invalid_Outline )
* ...
* ```
*
* FT_ERROR_BASE( errcode )
* FT_ERROR_MODULE( errcode )
*
* Get base error and module error code, respectively.
*
* It can also be used to create a module error message table easily with
* something like
*
* ```
* #undef FTMODERR_H_
* #define FT_MODERRDEF( e, v, s ) { FT_Mod_Err_ ## e, s },
* #define FT_MODERR_START_LIST {
* #define FT_MODERR_END_LIST { 0, 0 } };
*
* const struct
* {
* int mod_err_offset;
* const char* mod_err_msg
* } ft_mod_errors[] =
*
* #include <freetype/ftmoderr.h>
* ```
*
*/
#ifndef FTMODERR_H_
#define FTMODERR_H_
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
#ifndef FT_MODERRDEF
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = v,
#else
#define FT_MODERRDEF( e, v, s ) FT_Mod_Err_ ## e = 0,
#endif
#define FT_MODERR_START_LIST enum {
#define FT_MODERR_END_LIST FT_Mod_Err_Max };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_MODERRDEF */
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** LIST MODULE ERROR BASES *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_MODERR_START_LIST
FT_MODERR_START_LIST
#endif
FT_MODERRDEF( Base, 0x000, "base module" )
FT_MODERRDEF( Autofit, 0x100, "autofitter module" )
FT_MODERRDEF( BDF, 0x200, "BDF module" )
FT_MODERRDEF( Bzip2, 0x300, "Bzip2 module" )
FT_MODERRDEF( Cache, 0x400, "cache module" )
FT_MODERRDEF( CFF, 0x500, "CFF module" )
FT_MODERRDEF( CID, 0x600, "CID module" )
FT_MODERRDEF( Gzip, 0x700, "Gzip module" )
FT_MODERRDEF( LZW, 0x800, "LZW module" )
FT_MODERRDEF( OTvalid, 0x900, "OpenType validation module" )
FT_MODERRDEF( PCF, 0xA00, "PCF module" )
FT_MODERRDEF( PFR, 0xB00, "PFR module" )
FT_MODERRDEF( PSaux, 0xC00, "PS auxiliary module" )
FT_MODERRDEF( PShinter, 0xD00, "PS hinter module" )
FT_MODERRDEF( PSnames, 0xE00, "PS names module" )
FT_MODERRDEF( Raster, 0xF00, "raster module" )
FT_MODERRDEF( SFNT, 0x1000, "SFNT module" )
FT_MODERRDEF( Smooth, 0x1100, "smooth raster module" )
FT_MODERRDEF( TrueType, 0x1200, "TrueType module" )
FT_MODERRDEF( Type1, 0x1300, "Type 1 module" )
FT_MODERRDEF( Type42, 0x1400, "Type 42 module" )
FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )
FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" )
FT_MODERRDEF( Sdf, 0x1700, "Signed distance field raster module" )
#ifdef FT_MODERR_END_LIST
FT_MODERR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_MODERR_START_LIST
#undef FT_MODERR_END_LIST
#undef FT_MODERRDEF
#undef FT_NEED_EXTERN_C
#endif /* FTMODERR_H_ */
/* END */

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/****************************************************************************
*
* ftotval.h
*
* FreeType API for validating OpenType tables (specification).
*
* Copyright (C) 2004-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
*
* Warning: This module might be moved to a different library in the
* future to avoid a tight dependency between FreeType and the
* OpenType specification.
*
*
*/
#ifndef FTOTVAL_H_
#define FTOTVAL_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* ot_validation
*
* @title:
* OpenType Validation
*
* @abstract:
* An API to validate OpenType tables.
*
* @description:
* This section contains the declaration of functions to validate some
* OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
*
* @order:
* FT_OpenType_Validate
* FT_OpenType_Free
*
* FT_VALIDATE_OTXXX
*
*/
/**************************************************************************
*
* @enum:
* FT_VALIDATE_OTXXX
*
* @description:
* A list of bit-field constants used with @FT_OpenType_Validate to
* indicate which OpenType tables should be validated.
*
* @values:
* FT_VALIDATE_BASE ::
* Validate BASE table.
*
* FT_VALIDATE_GDEF ::
* Validate GDEF table.
*
* FT_VALIDATE_GPOS ::
* Validate GPOS table.
*
* FT_VALIDATE_GSUB ::
* Validate GSUB table.
*
* FT_VALIDATE_JSTF ::
* Validate JSTF table.
*
* FT_VALIDATE_MATH ::
* Validate MATH table.
*
* FT_VALIDATE_OT ::
* Validate all OpenType tables (BASE, GDEF, GPOS, GSUB, JSTF, MATH).
*
*/
#define FT_VALIDATE_BASE 0x0100
#define FT_VALIDATE_GDEF 0x0200
#define FT_VALIDATE_GPOS 0x0400
#define FT_VALIDATE_GSUB 0x0800
#define FT_VALIDATE_JSTF 0x1000
#define FT_VALIDATE_MATH 0x2000
#define FT_VALIDATE_OT ( FT_VALIDATE_BASE | \
FT_VALIDATE_GDEF | \
FT_VALIDATE_GPOS | \
FT_VALIDATE_GSUB | \
FT_VALIDATE_JSTF | \
FT_VALIDATE_MATH )
/**************************************************************************
*
* @function:
* FT_OpenType_Validate
*
* @description:
* Validate various OpenType tables to assure that all offsets and
* indices are valid. The idea is that a higher-level library that
* actually does the text layout can access those tables without error
* checking (which can be quite time consuming).
*
* @input:
* face ::
* A handle to the input face.
*
* validation_flags ::
* A bit field that specifies the tables to be validated. See
* @FT_VALIDATE_OTXXX for possible values.
*
* @output:
* BASE_table ::
* A pointer to the BASE table.
*
* GDEF_table ::
* A pointer to the GDEF table.
*
* GPOS_table ::
* A pointer to the GPOS table.
*
* GSUB_table ::
* A pointer to the GSUB table.
*
* JSTF_table ::
* A pointer to the JSTF table.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with OpenType fonts, returning an error
* otherwise.
*
* After use, the application should deallocate the five tables with
* @FT_OpenType_Free. A `NULL` value indicates that the table either
* doesn't exist in the font, or the application hasn't asked for
* validation.
*/
FT_EXPORT( FT_Error )
FT_OpenType_Validate( FT_Face face,
FT_UInt validation_flags,
FT_Bytes *BASE_table,
FT_Bytes *GDEF_table,
FT_Bytes *GPOS_table,
FT_Bytes *GSUB_table,
FT_Bytes *JSTF_table );
/**************************************************************************
*
* @function:
* FT_OpenType_Free
*
* @description:
* Free the buffer allocated by OpenType validator.
*
* @input:
* face ::
* A handle to the input face.
*
* table ::
* The pointer to the buffer that is allocated by
* @FT_OpenType_Validate.
*
* @note:
* This function must be used to free the buffer allocated by
* @FT_OpenType_Validate only.
*/
FT_EXPORT( void )
FT_OpenType_Free( FT_Face face,
FT_Bytes table );
/* */
FT_END_HEADER
#endif /* FTOTVAL_H_ */
/* END */

588
Example/include/freetype/ftoutln.h
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/****************************************************************************
*
* ftoutln.h
*
* Support for the FT_Outline type used to store glyph shapes of
* most scalable font formats (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTOUTLN_H_
#define FTOUTLN_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* outline_processing
*
* @title:
* Outline Processing
*
* @abstract:
* Functions to create, transform, and render vectorial glyph images.
*
* @description:
* This section contains routines used to create and destroy scalable
* glyph images known as 'outlines'. These can also be measured,
* transformed, and converted into bitmaps and pixmaps.
*
* @order:
* FT_Outline
* FT_Outline_New
* FT_Outline_Done
* FT_Outline_Copy
* FT_Outline_Translate
* FT_Outline_Transform
* FT_Outline_Embolden
* FT_Outline_EmboldenXY
* FT_Outline_Reverse
* FT_Outline_Check
*
* FT_Outline_Get_CBox
* FT_Outline_Get_BBox
*
* FT_Outline_Get_Bitmap
* FT_Outline_Render
* FT_Outline_Decompose
* FT_Outline_Funcs
* FT_Outline_MoveToFunc
* FT_Outline_LineToFunc
* FT_Outline_ConicToFunc
* FT_Outline_CubicToFunc
*
* FT_Orientation
* FT_Outline_Get_Orientation
*
* FT_OUTLINE_XXX
*
*/
/**************************************************************************
*
* @function:
* FT_Outline_Decompose
*
* @description:
* Walk over an outline's structure to decompose it into individual
* segments and Bezier arcs. This function also emits 'move to'
* operations to indicate the start of new contours in the outline.
*
* @input:
* outline ::
* A pointer to the source target.
*
* func_interface ::
* A table of 'emitters', i.e., function pointers called during
* decomposition to indicate path operations.
*
* @inout:
* user ::
* A typeless pointer that is passed to each emitter during the
* decomposition. It can be used to store the state during the
* decomposition.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* Degenerate contours, segments, and Bezier arcs may be reported. In
* most cases, it is best to filter these out before using the outline
* for stroking or other path modification purposes (which may cause
* degenerate segments to become non-degenrate and visible, like when
* stroke caps are used or the path is otherwise outset). Some glyph
* outlines may contain deliberate degenerate single points for mark
* attachement.
*
* Similarly, the function returns success for an empty outline also
* (doing nothing, that is, not calling any emitter); if necessary, you
* should filter this out, too.
*/
FT_EXPORT( FT_Error )
FT_Outline_Decompose( FT_Outline* outline,
const FT_Outline_Funcs* func_interface,
void* user );
/**************************************************************************
*
* @function:
* FT_Outline_New
*
* @description:
* Create a new outline of a given size.
*
* @input:
* library ::
* A handle to the library object from where the outline is allocated.
* Note however that the new outline will **not** necessarily be
* **freed**, when destroying the library, by @FT_Done_FreeType.
*
* numPoints ::
* The maximum number of points within the outline. Must be smaller
* than or equal to 0xFFFF (65535).
*
* numContours ::
* The maximum number of contours within the outline. This value must
* be in the range 0 to `numPoints`.
*
* @output:
* anoutline ::
* A handle to the new outline.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The reason why this function takes a `library` parameter is simply to
* use the library's memory allocator.
*/
FT_EXPORT( FT_Error )
FT_Outline_New( FT_Library library,
FT_UInt numPoints,
FT_Int numContours,
FT_Outline *anoutline );
/**************************************************************************
*
* @function:
* FT_Outline_Done
*
* @description:
* Destroy an outline created with @FT_Outline_New.
*
* @input:
* library ::
* A handle of the library object used to allocate the outline.
*
* outline ::
* A pointer to the outline object to be discarded.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the outline's 'owner' field is not set, only the outline descriptor
* will be released.
*/
FT_EXPORT( FT_Error )
FT_Outline_Done( FT_Library library,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Check
*
* @description:
* Check the contents of an outline descriptor.
*
* @input:
* outline ::
* A handle to a source outline.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* An empty outline, or an outline with a single point only is also
* valid.
*/
FT_EXPORT( FT_Error )
FT_Outline_Check( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Get_CBox
*
* @description:
* Return an outline's 'control box'. The control box encloses all the
* outline's points, including Bezier control points. Though it
* coincides with the exact bounding box for most glyphs, it can be
* slightly larger in some situations (like when rotating an outline that
* contains Bezier outside arcs).
*
* Computing the control box is very fast, while getting the bounding box
* can take much more time as it needs to walk over all segments and arcs
* in the outline. To get the latter, you can use the 'ftbbox'
* component, which is dedicated to this single task.
*
* @input:
* outline ::
* A pointer to the source outline descriptor.
*
* @output:
* acbox ::
* The outline's control box.
*
* @note:
* See @FT_Glyph_Get_CBox for a discussion of tricky fonts.
*/
FT_EXPORT( void )
FT_Outline_Get_CBox( const FT_Outline* outline,
FT_BBox *acbox );
/**************************************************************************
*
* @function:
* FT_Outline_Translate
*
* @description:
* Apply a simple translation to the points of an outline.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @input:
* xOffset ::
* The horizontal offset.
*
* yOffset ::
* The vertical offset.
*/
FT_EXPORT( void )
FT_Outline_Translate( const FT_Outline* outline,
FT_Pos xOffset,
FT_Pos yOffset );
/**************************************************************************
*
* @function:
* FT_Outline_Copy
*
* @description:
* Copy an outline into another one. Both objects must have the same
* sizes (number of points & number of contours) when this function is
* called.
*
* @input:
* source ::
* A handle to the source outline.
*
* @output:
* target ::
* A handle to the target outline.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Outline_Copy( const FT_Outline* source,
FT_Outline *target );
/**************************************************************************
*
* @function:
* FT_Outline_Transform
*
* @description:
* Apply a simple 2x2 matrix to all of an outline's points. Useful for
* applying rotations, slanting, flipping, etc.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @input:
* matrix ::
* A pointer to the transformation matrix.
*
* @note:
* You can use @FT_Outline_Translate if you need to translate the
* outline's points.
*/
FT_EXPORT( void )
FT_Outline_Transform( const FT_Outline* outline,
const FT_Matrix* matrix );
/**************************************************************************
*
* @function:
* FT_Outline_Embolden
*
* @description:
* Embolden an outline. The new outline will be at most 4~times
* `strength` pixels wider and higher. You may think of the left and
* bottom borders as unchanged.
*
* Negative `strength` values to reduce the outline thickness are
* possible also.
*
* @inout:
* outline ::
* A handle to the target outline.
*
* @input:
* strength ::
* How strong the glyph is emboldened. Expressed in 26.6 pixel format.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The used algorithm to increase or decrease the thickness of the glyph
* doesn't change the number of points; this means that certain
* situations like acute angles or intersections are sometimes handled
* incorrectly.
*
* If you need 'better' metrics values you should call
* @FT_Outline_Get_CBox or @FT_Outline_Get_BBox.
*
* To get meaningful results, font scaling values must be set with
* functions like @FT_Set_Char_Size before calling FT_Render_Glyph.
*
* @example:
* ```
* FT_Load_Glyph( face, index, FT_LOAD_DEFAULT );
*
* if ( face->glyph->format == FT_GLYPH_FORMAT_OUTLINE )
* FT_Outline_Embolden( &face->glyph->outline, strength );
* ```
*
*/
FT_EXPORT( FT_Error )
FT_Outline_Embolden( FT_Outline* outline,
FT_Pos strength );
/**************************************************************************
*
* @function:
* FT_Outline_EmboldenXY
*
* @description:
* Embolden an outline. The new outline will be `xstrength` pixels wider
* and `ystrength` pixels higher. Otherwise, it is similar to
* @FT_Outline_Embolden, which uses the same strength in both directions.
*
* @since:
* 2.4.10
*/
FT_EXPORT( FT_Error )
FT_Outline_EmboldenXY( FT_Outline* outline,
FT_Pos xstrength,
FT_Pos ystrength );
/**************************************************************************
*
* @function:
* FT_Outline_Reverse
*
* @description:
* Reverse the drawing direction of an outline. This is used to ensure
* consistent fill conventions for mirrored glyphs.
*
* @inout:
* outline ::
* A pointer to the target outline descriptor.
*
* @note:
* This function toggles the bit flag @FT_OUTLINE_REVERSE_FILL in the
* outline's `flags` field.
*
* It shouldn't be used by a normal client application, unless it knows
* what it is doing.
*/
FT_EXPORT( void )
FT_Outline_Reverse( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_Get_Bitmap
*
* @description:
* Render an outline within a bitmap. The outline's image is simply
* OR-ed to the target bitmap.
*
* @input:
* library ::
* A handle to a FreeType library object.
*
* outline ::
* A pointer to the source outline descriptor.
*
* @inout:
* abitmap ::
* A pointer to the target bitmap descriptor.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function does **not create** the bitmap, it only renders an
* outline image within the one you pass to it! Consequently, the
* various fields in `abitmap` should be set accordingly.
*
* It will use the raster corresponding to the default glyph format.
*
* The value of the `num_grays` field in `abitmap` is ignored. If you
* select the gray-level rasterizer, and you want less than 256 gray
* levels, you have to use @FT_Outline_Render directly.
*/
FT_EXPORT( FT_Error )
FT_Outline_Get_Bitmap( FT_Library library,
FT_Outline* outline,
const FT_Bitmap *abitmap );
/**************************************************************************
*
* @function:
* FT_Outline_Render
*
* @description:
* Render an outline within a bitmap using the current scan-convert.
*
* @input:
* library ::
* A handle to a FreeType library object.
*
* outline ::
* A pointer to the source outline descriptor.
*
* @inout:
* params ::
* A pointer to an @FT_Raster_Params structure used to describe the
* rendering operation.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This advanced function uses @FT_Raster_Params as an argument.
* The field `params.source` will be set to `outline` before the scan
* converter is called, which means that the value you give to it is
* actually ignored. Either `params.target` must point to preallocated
* bitmap, or @FT_RASTER_FLAG_DIRECT must be set in `params.flags`
* allowing FreeType rasterizer to be used for direct composition,
* translucency, etc. See @FT_Raster_Params for more details.
*/
FT_EXPORT( FT_Error )
FT_Outline_Render( FT_Library library,
FT_Outline* outline,
FT_Raster_Params* params );
/**************************************************************************
*
* @enum:
* FT_Orientation
*
* @description:
* A list of values used to describe an outline's contour orientation.
*
* The TrueType and PostScript specifications use different conventions
* to determine whether outline contours should be filled or unfilled.
*
* @values:
* FT_ORIENTATION_TRUETYPE ::
* According to the TrueType specification, clockwise contours must be
* filled, and counter-clockwise ones must be unfilled.
*
* FT_ORIENTATION_POSTSCRIPT ::
* According to the PostScript specification, counter-clockwise
* contours must be filled, and clockwise ones must be unfilled.
*
* FT_ORIENTATION_FILL_RIGHT ::
* This is identical to @FT_ORIENTATION_TRUETYPE, but is used to
* remember that in TrueType, everything that is to the right of the
* drawing direction of a contour must be filled.
*
* FT_ORIENTATION_FILL_LEFT ::
* This is identical to @FT_ORIENTATION_POSTSCRIPT, but is used to
* remember that in PostScript, everything that is to the left of the
* drawing direction of a contour must be filled.
*
* FT_ORIENTATION_NONE ::
* The orientation cannot be determined. That is, different parts of
* the glyph have different orientation.
*
*/
typedef enum FT_Orientation_
{
FT_ORIENTATION_TRUETYPE = 0,
FT_ORIENTATION_POSTSCRIPT = 1,
FT_ORIENTATION_FILL_RIGHT = FT_ORIENTATION_TRUETYPE,
FT_ORIENTATION_FILL_LEFT = FT_ORIENTATION_POSTSCRIPT,
FT_ORIENTATION_NONE
} FT_Orientation;
/**************************************************************************
*
* @function:
* FT_Outline_Get_Orientation
*
* @description:
* This function analyzes a glyph outline and tries to compute its fill
* orientation (see @FT_Orientation). This is done by integrating the
* total area covered by the outline. The positive integral corresponds
* to the clockwise orientation and @FT_ORIENTATION_POSTSCRIPT is
* returned. The negative integral corresponds to the counter-clockwise
* orientation and @FT_ORIENTATION_TRUETYPE is returned.
*
* Note that this will return @FT_ORIENTATION_TRUETYPE for empty
* outlines.
*
* @input:
* outline ::
* A handle to the source outline.
*
* @return:
* The orientation.
*
*/
FT_EXPORT( FT_Orientation )
FT_Outline_Get_Orientation( FT_Outline* outline );
/* */
FT_END_HEADER
#endif /* FTOUTLN_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

218
Example/include/freetype/ftparams.h
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/****************************************************************************
*
* ftparams.h
*
* FreeType API for possible FT_Parameter tags (specification only).
*
* Copyright (C) 2017-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTPARAMS_H_
#define FTPARAMS_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* parameter_tags
*
* @title:
* Parameter Tags
*
* @abstract:
* Macros for driver property and font loading parameter tags.
*
* @description:
* This section contains macros for the @FT_Parameter structure that are
* used with various functions to activate some special functionality or
* different behaviour of various components of FreeType.
*
*/
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
* family names in the 'name' table (introduced in OpenType version 1.4).
* Use this for backward compatibility with legacy systems that have a
* four-faces-per-family restriction.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY \
FT_MAKE_TAG( 'i', 'g', 'p', 'f' )
/* this constant is deprecated */
#define FT_PARAM_TAG_IGNORE_PREFERRED_FAMILY \
FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_FAMILY
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore typographic
* subfamily names in the 'name' table (introduced in OpenType version
* 1.4). Use this for backward compatibility with legacy systems that
* have a four-faces-per-family restriction.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY \
FT_MAKE_TAG( 'i', 'g', 'p', 's' )
/* this constant is deprecated */
#define FT_PARAM_TAG_IGNORE_PREFERRED_SUBFAMILY \
FT_PARAM_TAG_IGNORE_TYPOGRAPHIC_SUBFAMILY
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_INCREMENTAL
*
* @description:
* An @FT_Parameter tag to be used with @FT_Open_Face to indicate
* incremental glyph loading.
*
*/
#define FT_PARAM_TAG_INCREMENTAL \
FT_MAKE_TAG( 'i', 'n', 'c', 'r' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_IGNORE_SBIX
*
* @description:
* A tag for @FT_Parameter to make @FT_Open_Face ignore an 'sbix' table
* while loading a font. Use this if @FT_FACE_FLAG_SBIX is set and you
* want to access the outline glyphs in the font.
*
*/
#define FT_PARAM_TAG_IGNORE_SBIX \
FT_MAKE_TAG( 'i', 's', 'b', 'x' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_LCD_FILTER_WEIGHTS
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding argument specifies the five LCD filter weights for a
* given face (if using @FT_LOAD_TARGET_LCD, for example), overriding the
* global default values or the values set up with
* @FT_Library_SetLcdFilterWeights.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_LCD_FILTER_WEIGHTS \
FT_MAKE_TAG( 'l', 'c', 'd', 'f' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_RANDOM_SEED
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding 32bit signed integer argument overrides the font
* driver's random seed value with a face-specific one; see @random-seed.
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_RANDOM_SEED \
FT_MAKE_TAG( 's', 'e', 'e', 'd' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_STEM_DARKENING
*
* @description:
* An @FT_Parameter tag to be used with @FT_Face_Properties. The
* corresponding Boolean argument specifies whether to apply stem
* darkening, overriding the global default values or the values set up
* with @FT_Property_Set (see @no-stem-darkening).
*
* This is a passive setting that only takes effect if the font driver or
* autohinter honors it, which the CFF, Type~1, and CID drivers always
* do, but the autohinter only in 'light' hinting mode (as of version
* 2.9).
*
* @since:
* 2.8
*
*/
#define FT_PARAM_TAG_STEM_DARKENING \
FT_MAKE_TAG( 'd', 'a', 'r', 'k' )
/**************************************************************************
*
* @enum:
* FT_PARAM_TAG_UNPATENTED_HINTING
*
* @description:
* Deprecated, no effect.
*
* Previously: A constant used as the tag of an @FT_Parameter structure
* to indicate that unpatented methods only should be used by the
* TrueType bytecode interpreter for a typeface opened by @FT_Open_Face.
*
*/
#define FT_PARAM_TAG_UNPATENTED_HINTING \
FT_MAKE_TAG( 'u', 'n', 'p', 'a' )
/* */
FT_END_HEADER
#endif /* FTPARAMS_H_ */
/* END */

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Example/include/freetype/ftpfr.h
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/****************************************************************************
*
* ftpfr.h
*
* FreeType API for accessing PFR-specific data (specification only).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTPFR_H_
#define FTPFR_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* pfr_fonts
*
* @title:
* PFR Fonts
*
* @abstract:
* PFR/TrueDoc-specific API.
*
* @description:
* This section contains the declaration of PFR-specific functions.
*
*/
/**************************************************************************
*
* @function:
* FT_Get_PFR_Metrics
*
* @description:
* Return the outline and metrics resolutions of a given PFR face.
*
* @input:
* face ::
* Handle to the input face. It can be a non-PFR face.
*
* @output:
* aoutline_resolution ::
* Outline resolution. This is equivalent to `face->units_per_EM` for
* non-PFR fonts. Optional (parameter can be `NULL`).
*
* ametrics_resolution ::
* Metrics resolution. This is equivalent to `outline_resolution` for
* non-PFR fonts. Optional (parameter can be `NULL`).
*
* ametrics_x_scale ::
* A 16.16 fixed-point number used to scale distance expressed in
* metrics units to device subpixels. This is equivalent to
* `face->size->x_scale`, but for metrics only. Optional (parameter
* can be `NULL`).
*
* ametrics_y_scale ::
* Same as `ametrics_x_scale` but for the vertical direction.
* optional (parameter can be `NULL`).
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If the input face is not a PFR, this function will return an error.
* However, in all cases, it will return valid values.
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Metrics( FT_Face face,
FT_UInt *aoutline_resolution,
FT_UInt *ametrics_resolution,
FT_Fixed *ametrics_x_scale,
FT_Fixed *ametrics_y_scale );
/**************************************************************************
*
* @function:
* FT_Get_PFR_Kerning
*
* @description:
* Return the kerning pair corresponding to two glyphs in a PFR face.
* The distance is expressed in metrics units, unlike the result of
* @FT_Get_Kerning.
*
* @input:
* face ::
* A handle to the input face.
*
* left ::
* Index of the left glyph.
*
* right ::
* Index of the right glyph.
*
* @output:
* avector ::
* A kerning vector.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function always return distances in original PFR metrics units.
* This is unlike @FT_Get_Kerning with the @FT_KERNING_UNSCALED mode,
* which always returns distances converted to outline units.
*
* You can use the value of the `x_scale` and `y_scale` parameters
* returned by @FT_Get_PFR_Metrics to scale these to device subpixels.
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Kerning( FT_Face face,
FT_UInt left,
FT_UInt right,
FT_Vector *avector );
/**************************************************************************
*
* @function:
* FT_Get_PFR_Advance
*
* @description:
* Return a given glyph advance, expressed in original metrics units,
* from a PFR font.
*
* @input:
* face ::
* A handle to the input face.
*
* gindex ::
* The glyph index.
*
* @output:
* aadvance ::
* The glyph advance in metrics units.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You can use the `x_scale` or `y_scale` results of @FT_Get_PFR_Metrics
* to convert the advance to device subpixels (i.e., 1/64 of pixels).
*/
FT_EXPORT( FT_Error )
FT_Get_PFR_Advance( FT_Face face,
FT_UInt gindex,
FT_Pos *aadvance );
/* */
FT_END_HEADER
#endif /* FTPFR_H_ */
/* END */

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/****************************************************************************
*
* ftrender.h
*
* FreeType renderer modules public interface (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTRENDER_H_
#define FTRENDER_H_
#include <freetype/ftmodapi.h>
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* module_management
*
*/
/* create a new glyph object */
typedef FT_Error
(*FT_Glyph_InitFunc)( FT_Glyph glyph,
FT_GlyphSlot slot );
/* destroys a given glyph object */
typedef void
(*FT_Glyph_DoneFunc)( FT_Glyph glyph );
typedef void
(*FT_Glyph_TransformFunc)( FT_Glyph glyph,
const FT_Matrix* matrix,
const FT_Vector* delta );
typedef void
(*FT_Glyph_GetBBoxFunc)( FT_Glyph glyph,
FT_BBox* abbox );
typedef FT_Error
(*FT_Glyph_CopyFunc)( FT_Glyph source,
FT_Glyph target );
typedef FT_Error
(*FT_Glyph_PrepareFunc)( FT_Glyph glyph,
FT_GlyphSlot slot );
/* deprecated */
#define FT_Glyph_Init_Func FT_Glyph_InitFunc
#define FT_Glyph_Done_Func FT_Glyph_DoneFunc
#define FT_Glyph_Transform_Func FT_Glyph_TransformFunc
#define FT_Glyph_BBox_Func FT_Glyph_GetBBoxFunc
#define FT_Glyph_Copy_Func FT_Glyph_CopyFunc
#define FT_Glyph_Prepare_Func FT_Glyph_PrepareFunc
struct FT_Glyph_Class_
{
FT_Long glyph_size;
FT_Glyph_Format glyph_format;
FT_Glyph_InitFunc glyph_init;
FT_Glyph_DoneFunc glyph_done;
FT_Glyph_CopyFunc glyph_copy;
FT_Glyph_TransformFunc glyph_transform;
FT_Glyph_GetBBoxFunc glyph_bbox;
FT_Glyph_PrepareFunc glyph_prepare;
};
typedef FT_Error
(*FT_Renderer_RenderFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
FT_Render_Mode mode,
const FT_Vector* origin );
typedef FT_Error
(*FT_Renderer_TransformFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
const FT_Matrix* matrix,
const FT_Vector* delta );
typedef void
(*FT_Renderer_GetCBoxFunc)( FT_Renderer renderer,
FT_GlyphSlot slot,
FT_BBox* cbox );
typedef FT_Error
(*FT_Renderer_SetModeFunc)( FT_Renderer renderer,
FT_ULong mode_tag,
FT_Pointer mode_ptr );
/* deprecated identifiers */
#define FTRenderer_render FT_Renderer_RenderFunc
#define FTRenderer_transform FT_Renderer_TransformFunc
#define FTRenderer_getCBox FT_Renderer_GetCBoxFunc
#define FTRenderer_setMode FT_Renderer_SetModeFunc
/**************************************************************************
*
* @struct:
* FT_Renderer_Class
*
* @description:
* The renderer module class descriptor.
*
* @fields:
* root ::
* The root @FT_Module_Class fields.
*
* glyph_format ::
* The glyph image format this renderer handles.
*
* render_glyph ::
* A method used to render the image that is in a given glyph slot into
* a bitmap.
*
* transform_glyph ::
* A method used to transform the image that is in a given glyph slot.
*
* get_glyph_cbox ::
* A method used to access the glyph's cbox.
*
* set_mode ::
* A method used to pass additional parameters.
*
* raster_class ::
* For @FT_GLYPH_FORMAT_OUTLINE renderers only. This is a pointer to
* its raster's class.
*/
typedef struct FT_Renderer_Class_
{
FT_Module_Class root;
FT_Glyph_Format glyph_format;
FT_Renderer_RenderFunc render_glyph;
FT_Renderer_TransformFunc transform_glyph;
FT_Renderer_GetCBoxFunc get_glyph_cbox;
FT_Renderer_SetModeFunc set_mode;
const FT_Raster_Funcs* raster_class;
} FT_Renderer_Class;
/**************************************************************************
*
* @function:
* FT_Get_Renderer
*
* @description:
* Retrieve the current renderer for a given glyph format.
*
* @input:
* library ::
* A handle to the library object.
*
* format ::
* The glyph format.
*
* @return:
* A renderer handle. 0~if none found.
*
* @note:
* An error will be returned if a module already exists by that name, or
* if the module requires a version of FreeType that is too great.
*
* To add a new renderer, simply use @FT_Add_Module. To retrieve a
* renderer by its name, use @FT_Get_Module.
*/
FT_EXPORT( FT_Renderer )
FT_Get_Renderer( FT_Library library,
FT_Glyph_Format format );
/**************************************************************************
*
* @function:
* FT_Set_Renderer
*
* @description:
* Set the current renderer to use, and set additional mode.
*
* @inout:
* library ::
* A handle to the library object.
*
* @input:
* renderer ::
* A handle to the renderer object.
*
* num_params ::
* The number of additional parameters.
*
* parameters ::
* Additional parameters.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* In case of success, the renderer will be used to convert glyph images
* in the renderer's known format into bitmaps.
*
* This doesn't change the current renderer for other formats.
*
* Currently, no FreeType renderer module uses `parameters`; you should
* thus always pass `NULL` as the value.
*/
FT_EXPORT( FT_Error )
FT_Set_Renderer( FT_Library library,
FT_Renderer renderer,
FT_UInt num_params,
FT_Parameter* parameters );
/* */
FT_END_HEADER
#endif /* FTRENDER_H_ */
/* END */

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/****************************************************************************
*
* ftsizes.h
*
* FreeType size objects management (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* Typical application would normally not need to use these functions.
* However, they have been placed in a public API for the rare cases where
* they are needed.
*
*/
#ifndef FTSIZES_H_
#define FTSIZES_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* sizes_management
*
* @title:
* Size Management
*
* @abstract:
* Managing multiple sizes per face.
*
* @description:
* When creating a new face object (e.g., with @FT_New_Face), an @FT_Size
* object is automatically created and used to store all pixel-size
* dependent information, available in the `face->size` field.
*
* It is however possible to create more sizes for a given face, mostly
* in order to manage several character pixel sizes of the same font
* family and style. See @FT_New_Size and @FT_Done_Size.
*
* Note that @FT_Set_Pixel_Sizes and @FT_Set_Char_Size only modify the
* contents of the current 'active' size; you thus need to use
* @FT_Activate_Size to change it.
*
* 99% of applications won't need the functions provided here, especially
* if they use the caching sub-system, so be cautious when using these.
*
*/
/**************************************************************************
*
* @function:
* FT_New_Size
*
* @description:
* Create a new size object from a given face object.
*
* @input:
* face ::
* A handle to a parent face object.
*
* @output:
* asize ::
* A handle to a new size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You need to call @FT_Activate_Size in order to select the new size for
* upcoming calls to @FT_Set_Pixel_Sizes, @FT_Set_Char_Size,
* @FT_Load_Glyph, @FT_Load_Char, etc.
*/
FT_EXPORT( FT_Error )
FT_New_Size( FT_Face face,
FT_Size* size );
/**************************************************************************
*
* @function:
* FT_Done_Size
*
* @description:
* Discard a given size object. Note that @FT_Done_Face automatically
* discards all size objects allocated with @FT_New_Size.
*
* @input:
* size ::
* A handle to a target size object.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Done_Size( FT_Size size );
/**************************************************************************
*
* @function:
* FT_Activate_Size
*
* @description:
* Even though it is possible to create several size objects for a given
* face (see @FT_New_Size for details), functions like @FT_Load_Glyph or
* @FT_Load_Char only use the one that has been activated last to
* determine the 'current character pixel size'.
*
* This function can be used to 'activate' a previously created size
* object.
*
* @input:
* size ::
* A handle to a target size object.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `face` is the size's parent face object, this function changes the
* value of `face->size` to the input size handle.
*/
FT_EXPORT( FT_Error )
FT_Activate_Size( FT_Size size );
/* */
FT_END_HEADER
#endif /* FTSIZES_H_ */
/* END */

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/****************************************************************************
*
* ftsnames.h
*
* Simple interface to access SFNT 'name' tables (which are used
* to hold font names, copyright info, notices, etc.) (specification).
*
* This is _not_ used to retrieve glyph names!
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSNAMES_H_
#define FTSNAMES_H_
#include <freetype/freetype.h>
#include <freetype/ftparams.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* sfnt_names
*
* @title:
* SFNT Names
*
* @abstract:
* Access the names embedded in TrueType and OpenType files.
*
* @description:
* The TrueType and OpenType specifications allow the inclusion of a
* special names table ('name') in font files. This table contains
* textual (and internationalized) information regarding the font, like
* family name, copyright, version, etc.
*
* The definitions below are used to access them if available.
*
* Note that this has nothing to do with glyph names!
*
*/
/**************************************************************************
*
* @struct:
* FT_SfntName
*
* @description:
* A structure used to model an SFNT 'name' table entry.
*
* @fields:
* platform_id ::
* The platform ID for `string`. See @TT_PLATFORM_XXX for possible
* values.
*
* encoding_id ::
* The encoding ID for `string`. See @TT_APPLE_ID_XXX, @TT_MAC_ID_XXX,
* @TT_ISO_ID_XXX, @TT_MS_ID_XXX, and @TT_ADOBE_ID_XXX for possible
* values.
*
* language_id ::
* The language ID for `string`. See @TT_MAC_LANGID_XXX and
* @TT_MS_LANGID_XXX for possible values.
*
* Registered OpenType values for `language_id` are always smaller than
* 0x8000; values equal or larger than 0x8000 usually indicate a
* language tag string (introduced in OpenType version 1.6). Use
* function @FT_Get_Sfnt_LangTag with `language_id` as its argument to
* retrieve the associated language tag.
*
* name_id ::
* An identifier for `string`. See @TT_NAME_ID_XXX for possible
* values.
*
* string ::
* The 'name' string. Note that its format differs depending on the
* (platform,encoding) pair, being either a string of bytes (without a
* terminating `NULL` byte) or containing UTF-16BE entities.
*
* string_len ::
* The length of `string` in bytes.
*
* @note:
* Please refer to the TrueType or OpenType specification for more
* details.
*/
typedef struct FT_SfntName_
{
FT_UShort platform_id;
FT_UShort encoding_id;
FT_UShort language_id;
FT_UShort name_id;
FT_Byte* string; /* this string is *not* null-terminated! */
FT_UInt string_len; /* in bytes */
} FT_SfntName;
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_Name_Count
*
* @description:
* Retrieve the number of name strings in the SFNT 'name' table.
*
* @input:
* face ::
* A handle to the source face.
*
* @return:
* The number of strings in the 'name' table.
*
* @note:
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_UInt )
FT_Get_Sfnt_Name_Count( FT_Face face );
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_Name
*
* @description:
* Retrieve a string of the SFNT 'name' table for a given index.
*
* @input:
* face ::
* A handle to the source face.
*
* idx ::
* The index of the 'name' string.
*
* @output:
* aname ::
* The indexed @FT_SfntName structure.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `string` array returned in the `aname` structure is not
* null-terminated. Note that you don't have to deallocate `string` by
* yourself; FreeType takes care of it if you call @FT_Done_Face.
*
* Use @FT_Get_Sfnt_Name_Count to get the total number of available
* 'name' table entries, then do a loop until you get the right platform,
* encoding, and name ID.
*
* 'name' table format~1 entries can use language tags also, see
* @FT_Get_Sfnt_LangTag.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*/
FT_EXPORT( FT_Error )
FT_Get_Sfnt_Name( FT_Face face,
FT_UInt idx,
FT_SfntName *aname );
/**************************************************************************
*
* @struct:
* FT_SfntLangTag
*
* @description:
* A structure to model a language tag entry from an SFNT 'name' table.
*
* @fields:
* string ::
* The language tag string, encoded in UTF-16BE (without trailing
* `NULL` bytes).
*
* string_len ::
* The length of `string` in **bytes**.
*
* @note:
* Please refer to the TrueType or OpenType specification for more
* details.
*
* @since:
* 2.8
*/
typedef struct FT_SfntLangTag_
{
FT_Byte* string; /* this string is *not* null-terminated! */
FT_UInt string_len; /* in bytes */
} FT_SfntLangTag;
/**************************************************************************
*
* @function:
* FT_Get_Sfnt_LangTag
*
* @description:
* Retrieve the language tag associated with a language ID of an SFNT
* 'name' table entry.
*
* @input:
* face ::
* A handle to the source face.
*
* langID ::
* The language ID, as returned by @FT_Get_Sfnt_Name. This is always a
* value larger than 0x8000.
*
* @output:
* alangTag ::
* The language tag associated with the 'name' table entry's language
* ID.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The `string` array returned in the `alangTag` structure is not
* null-terminated. Note that you don't have to deallocate `string` by
* yourself; FreeType takes care of it if you call @FT_Done_Face.
*
* Only 'name' table format~1 supports language tags. For format~0
* tables, this function always returns FT_Err_Invalid_Table. For
* invalid format~1 language ID values, FT_Err_Invalid_Argument is
* returned.
*
* This function always returns an error if the config macro
* `TT_CONFIG_OPTION_SFNT_NAMES` is not defined in `ftoption.h`.
*
* @since:
* 2.8
*/
FT_EXPORT( FT_Error )
FT_Get_Sfnt_LangTag( FT_Face face,
FT_UInt langID,
FT_SfntLangTag *alangTag );
/* */
FT_END_HEADER
#endif /* FTSNAMES_H_ */
/* END */

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/****************************************************************************
*
* ftstroke.h
*
* FreeType path stroker (specification).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSTROKE_H_
#define FTSTROKE_H_
#include <freetype/ftoutln.h>
#include <freetype/ftglyph.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* glyph_stroker
*
* @title:
* Glyph Stroker
*
* @abstract:
* Generating bordered and stroked glyphs.
*
* @description:
* This component generates stroked outlines of a given vectorial glyph.
* It also allows you to retrieve the 'outside' and/or the 'inside'
* borders of the stroke.
*
* This can be useful to generate 'bordered' glyph, i.e., glyphs
* displayed with a colored (and anti-aliased) border around their
* shape.
*
* @order:
* FT_Stroker
*
* FT_Stroker_LineJoin
* FT_Stroker_LineCap
* FT_StrokerBorder
*
* FT_Outline_GetInsideBorder
* FT_Outline_GetOutsideBorder
*
* FT_Glyph_Stroke
* FT_Glyph_StrokeBorder
*
* FT_Stroker_New
* FT_Stroker_Set
* FT_Stroker_Rewind
* FT_Stroker_ParseOutline
* FT_Stroker_Done
*
* FT_Stroker_BeginSubPath
* FT_Stroker_EndSubPath
*
* FT_Stroker_LineTo
* FT_Stroker_ConicTo
* FT_Stroker_CubicTo
*
* FT_Stroker_GetBorderCounts
* FT_Stroker_ExportBorder
* FT_Stroker_GetCounts
* FT_Stroker_Export
*
*/
/**************************************************************************
*
* @type:
* FT_Stroker
*
* @description:
* Opaque handle to a path stroker object.
*/
typedef struct FT_StrokerRec_* FT_Stroker;
/**************************************************************************
*
* @enum:
* FT_Stroker_LineJoin
*
* @description:
* These values determine how two joining lines are rendered in a
* stroker.
*
* @values:
* FT_STROKER_LINEJOIN_ROUND ::
* Used to render rounded line joins. Circular arcs are used to join
* two lines smoothly.
*
* FT_STROKER_LINEJOIN_BEVEL ::
* Used to render beveled line joins. The outer corner of the joined
* lines is filled by enclosing the triangular region of the corner
* with a straight line between the outer corners of each stroke.
*
* FT_STROKER_LINEJOIN_MITER_FIXED ::
* Used to render mitered line joins, with fixed bevels if the miter
* limit is exceeded. The outer edges of the strokes for the two
* segments are extended until they meet at an angle. A bevel join
* (see above) is used if the segments meet at too sharp an angle and
* the outer edges meet beyond a distance corresponding to the meter
* limit. This prevents long spikes being created.
* `FT_STROKER_LINEJOIN_MITER_FIXED` generates a miter line join as
* used in PostScript and PDF.
*
* FT_STROKER_LINEJOIN_MITER_VARIABLE ::
* FT_STROKER_LINEJOIN_MITER ::
* Used to render mitered line joins, with variable bevels if the miter
* limit is exceeded. The intersection of the strokes is clipped
* perpendicularly to the bisector, at a distance corresponding to
* the miter limit. This prevents long spikes being created.
* `FT_STROKER_LINEJOIN_MITER_VARIABLE` generates a mitered line join
* as used in XPS. `FT_STROKER_LINEJOIN_MITER` is an alias for
* `FT_STROKER_LINEJOIN_MITER_VARIABLE`, retained for backward
* compatibility.
*/
typedef enum FT_Stroker_LineJoin_
{
FT_STROKER_LINEJOIN_ROUND = 0,
FT_STROKER_LINEJOIN_BEVEL = 1,
FT_STROKER_LINEJOIN_MITER_VARIABLE = 2,
FT_STROKER_LINEJOIN_MITER = FT_STROKER_LINEJOIN_MITER_VARIABLE,
FT_STROKER_LINEJOIN_MITER_FIXED = 3
} FT_Stroker_LineJoin;
/**************************************************************************
*
* @enum:
* FT_Stroker_LineCap
*
* @description:
* These values determine how the end of opened sub-paths are rendered in
* a stroke.
*
* @values:
* FT_STROKER_LINECAP_BUTT ::
* The end of lines is rendered as a full stop on the last point
* itself.
*
* FT_STROKER_LINECAP_ROUND ::
* The end of lines is rendered as a half-circle around the last point.
*
* FT_STROKER_LINECAP_SQUARE ::
* The end of lines is rendered as a square around the last point.
*/
typedef enum FT_Stroker_LineCap_
{
FT_STROKER_LINECAP_BUTT = 0,
FT_STROKER_LINECAP_ROUND,
FT_STROKER_LINECAP_SQUARE
} FT_Stroker_LineCap;
/**************************************************************************
*
* @enum:
* FT_StrokerBorder
*
* @description:
* These values are used to select a given stroke border in
* @FT_Stroker_GetBorderCounts and @FT_Stroker_ExportBorder.
*
* @values:
* FT_STROKER_BORDER_LEFT ::
* Select the left border, relative to the drawing direction.
*
* FT_STROKER_BORDER_RIGHT ::
* Select the right border, relative to the drawing direction.
*
* @note:
* Applications are generally interested in the 'inside' and 'outside'
* borders. However, there is no direct mapping between these and the
* 'left' and 'right' ones, since this really depends on the glyph's
* drawing orientation, which varies between font formats.
*
* You can however use @FT_Outline_GetInsideBorder and
* @FT_Outline_GetOutsideBorder to get these.
*/
typedef enum FT_StrokerBorder_
{
FT_STROKER_BORDER_LEFT = 0,
FT_STROKER_BORDER_RIGHT
} FT_StrokerBorder;
/**************************************************************************
*
* @function:
* FT_Outline_GetInsideBorder
*
* @description:
* Retrieve the @FT_StrokerBorder value corresponding to the 'inside'
* borders of a given outline.
*
* @input:
* outline ::
* The source outline handle.
*
* @return:
* The border index. @FT_STROKER_BORDER_RIGHT for empty or invalid
* outlines.
*/
FT_EXPORT( FT_StrokerBorder )
FT_Outline_GetInsideBorder( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Outline_GetOutsideBorder
*
* @description:
* Retrieve the @FT_StrokerBorder value corresponding to the 'outside'
* borders of a given outline.
*
* @input:
* outline ::
* The source outline handle.
*
* @return:
* The border index. @FT_STROKER_BORDER_LEFT for empty or invalid
* outlines.
*/
FT_EXPORT( FT_StrokerBorder )
FT_Outline_GetOutsideBorder( FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_New
*
* @description:
* Create a new stroker object.
*
* @input:
* library ::
* FreeType library handle.
*
* @output:
* astroker ::
* A new stroker object handle. `NULL` in case of error.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Stroker_New( FT_Library library,
FT_Stroker *astroker );
/**************************************************************************
*
* @function:
* FT_Stroker_Set
*
* @description:
* Reset a stroker object's attributes.
*
* @input:
* stroker ::
* The target stroker handle.
*
* radius ::
* The border radius.
*
* line_cap ::
* The line cap style.
*
* line_join ::
* The line join style.
*
* miter_limit ::
* The maximum reciprocal sine of half-angle at the miter join,
* expressed as 16.16 fixed-point value.
*
* @note:
* The `radius` is expressed in the same units as the outline
* coordinates.
*
* The `miter_limit` multiplied by the `radius` gives the maximum size
* of a miter spike, at which it is clipped for
* @FT_STROKER_LINEJOIN_MITER_VARIABLE or replaced with a bevel join for
* @FT_STROKER_LINEJOIN_MITER_FIXED.
*
* This function calls @FT_Stroker_Rewind automatically.
*/
FT_EXPORT( void )
FT_Stroker_Set( FT_Stroker stroker,
FT_Fixed radius,
FT_Stroker_LineCap line_cap,
FT_Stroker_LineJoin line_join,
FT_Fixed miter_limit );
/**************************************************************************
*
* @function:
* FT_Stroker_Rewind
*
* @description:
* Reset a stroker object without changing its attributes. You should
* call this function before beginning a new series of calls to
* @FT_Stroker_BeginSubPath or @FT_Stroker_EndSubPath.
*
* @input:
* stroker ::
* The target stroker handle.
*/
FT_EXPORT( void )
FT_Stroker_Rewind( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Stroker_ParseOutline
*
* @description:
* A convenience function used to parse a whole outline with the stroker.
* The resulting outline(s) can be retrieved later by functions like
* @FT_Stroker_GetCounts and @FT_Stroker_Export.
*
* @input:
* stroker ::
* The target stroker handle.
*
* outline ::
* The source outline.
*
* opened ::
* A boolean. If~1, the outline is treated as an open path instead of
* a closed one.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* If `opened` is~0 (the default), the outline is treated as a closed
* path, and the stroker generates two distinct 'border' outlines.
*
* If `opened` is~1, the outline is processed as an open path, and the
* stroker generates a single 'stroke' outline.
*
* This function calls @FT_Stroker_Rewind automatically.
*/
FT_EXPORT( FT_Error )
FT_Stroker_ParseOutline( FT_Stroker stroker,
FT_Outline* outline,
FT_Bool opened );
/**************************************************************************
*
* @function:
* FT_Stroker_BeginSubPath
*
* @description:
* Start a new sub-path in the stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* to ::
* A pointer to the start vector.
*
* open ::
* A boolean. If~1, the sub-path is treated as an open one.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function is useful when you need to stroke a path that is not
* stored as an @FT_Outline object.
*/
FT_EXPORT( FT_Error )
FT_Stroker_BeginSubPath( FT_Stroker stroker,
FT_Vector* to,
FT_Bool open );
/**************************************************************************
*
* @function:
* FT_Stroker_EndSubPath
*
* @description:
* Close the current sub-path in the stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function after @FT_Stroker_BeginSubPath. If the
* subpath was not 'opened', this function 'draws' a single line segment
* to the start position when needed.
*/
FT_EXPORT( FT_Error )
FT_Stroker_EndSubPath( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Stroker_LineTo
*
* @description:
* 'Draw' a single line segment in the stroker's current sub-path, from
* the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_LineTo( FT_Stroker stroker,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_ConicTo
*
* @description:
* 'Draw' a single quadratic Bezier in the stroker's current sub-path,
* from the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* control ::
* A pointer to a Bezier control point.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_ConicTo( FT_Stroker stroker,
FT_Vector* control,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_CubicTo
*
* @description:
* 'Draw' a single cubic Bezier in the stroker's current sub-path, from
* the last position.
*
* @input:
* stroker ::
* The target stroker handle.
*
* control1 ::
* A pointer to the first Bezier control point.
*
* control2 ::
* A pointer to second Bezier control point.
*
* to ::
* A pointer to the destination point.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* You should call this function between @FT_Stroker_BeginSubPath and
* @FT_Stroker_EndSubPath.
*/
FT_EXPORT( FT_Error )
FT_Stroker_CubicTo( FT_Stroker stroker,
FT_Vector* control1,
FT_Vector* control2,
FT_Vector* to );
/**************************************************************************
*
* @function:
* FT_Stroker_GetBorderCounts
*
* @description:
* Call this function once you have finished parsing your paths with the
* stroker. It returns the number of points and contours necessary to
* export one of the 'border' or 'stroke' outlines generated by the
* stroker.
*
* @input:
* stroker ::
* The target stroker handle.
*
* border ::
* The border index.
*
* @output:
* anum_points ::
* The number of points.
*
* anum_contours ::
* The number of contours.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* When an outline, or a sub-path, is 'closed', the stroker generates two
* independent 'border' outlines, named 'left' and 'right'.
*
* When the outline, or a sub-path, is 'opened', the stroker merges the
* 'border' outlines with caps. The 'left' border receives all points,
* while the 'right' border becomes empty.
*
* Use the function @FT_Stroker_GetCounts instead if you want to retrieve
* the counts associated to both borders.
*/
FT_EXPORT( FT_Error )
FT_Stroker_GetBorderCounts( FT_Stroker stroker,
FT_StrokerBorder border,
FT_UInt *anum_points,
FT_UInt *anum_contours );
/**************************************************************************
*
* @function:
* FT_Stroker_ExportBorder
*
* @description:
* Call this function after @FT_Stroker_GetBorderCounts to export the
* corresponding border to your own @FT_Outline structure.
*
* Note that this function appends the border points and contours to your
* outline, but does not try to resize its arrays.
*
* @input:
* stroker ::
* The target stroker handle.
*
* border ::
* The border index.
*
* outline ::
* The target outline handle.
*
* @note:
* Always call this function after @FT_Stroker_GetBorderCounts to get
* sure that there is enough room in your @FT_Outline object to receive
* all new data.
*
* When an outline, or a sub-path, is 'closed', the stroker generates two
* independent 'border' outlines, named 'left' and 'right'.
*
* When the outline, or a sub-path, is 'opened', the stroker merges the
* 'border' outlines with caps. The 'left' border receives all points,
* while the 'right' border becomes empty.
*
* Use the function @FT_Stroker_Export instead if you want to retrieve
* all borders at once.
*/
FT_EXPORT( void )
FT_Stroker_ExportBorder( FT_Stroker stroker,
FT_StrokerBorder border,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_GetCounts
*
* @description:
* Call this function once you have finished parsing your paths with the
* stroker. It returns the number of points and contours necessary to
* export all points/borders from the stroked outline/path.
*
* @input:
* stroker ::
* The target stroker handle.
*
* @output:
* anum_points ::
* The number of points.
*
* anum_contours ::
* The number of contours.
*
* @return:
* FreeType error code. 0~means success.
*/
FT_EXPORT( FT_Error )
FT_Stroker_GetCounts( FT_Stroker stroker,
FT_UInt *anum_points,
FT_UInt *anum_contours );
/**************************************************************************
*
* @function:
* FT_Stroker_Export
*
* @description:
* Call this function after @FT_Stroker_GetBorderCounts to export all
* borders to your own @FT_Outline structure.
*
* Note that this function appends the border points and contours to your
* outline, but does not try to resize its arrays.
*
* @input:
* stroker ::
* The target stroker handle.
*
* outline ::
* The target outline handle.
*/
FT_EXPORT( void )
FT_Stroker_Export( FT_Stroker stroker,
FT_Outline* outline );
/**************************************************************************
*
* @function:
* FT_Stroker_Done
*
* @description:
* Destroy a stroker object.
*
* @input:
* stroker ::
* A stroker handle. Can be `NULL`.
*/
FT_EXPORT( void )
FT_Stroker_Done( FT_Stroker stroker );
/**************************************************************************
*
* @function:
* FT_Glyph_Stroke
*
* @description:
* Stroke a given outline glyph object with a given stroker.
*
* @inout:
* pglyph ::
* Source glyph handle on input, new glyph handle on output.
*
* @input:
* stroker ::
* A stroker handle.
*
* destroy ::
* A Boolean. If~1, the source glyph object is destroyed on success.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source glyph is untouched in case of error.
*
* Adding stroke may yield a significantly wider and taller glyph
* depending on how large of a radius was used to stroke the glyph. You
* may need to manually adjust horizontal and vertical advance amounts to
* account for this added size.
*/
FT_EXPORT( FT_Error )
FT_Glyph_Stroke( FT_Glyph *pglyph,
FT_Stroker stroker,
FT_Bool destroy );
/**************************************************************************
*
* @function:
* FT_Glyph_StrokeBorder
*
* @description:
* Stroke a given outline glyph object with a given stroker, but only
* return either its inside or outside border.
*
* @inout:
* pglyph ::
* Source glyph handle on input, new glyph handle on output.
*
* @input:
* stroker ::
* A stroker handle.
*
* inside ::
* A Boolean. If~1, return the inside border, otherwise the outside
* border.
*
* destroy ::
* A Boolean. If~1, the source glyph object is destroyed on success.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* The source glyph is untouched in case of error.
*
* Adding stroke may yield a significantly wider and taller glyph
* depending on how large of a radius was used to stroke the glyph. You
* may need to manually adjust horizontal and vertical advance amounts to
* account for this added size.
*/
FT_EXPORT( FT_Error )
FT_Glyph_StrokeBorder( FT_Glyph *pglyph,
FT_Stroker stroker,
FT_Bool inside,
FT_Bool destroy );
/* */
FT_END_HEADER
#endif /* FTSTROKE_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

104
Example/include/freetype/ftsynth.h
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/****************************************************************************
*
* ftsynth.h
*
* FreeType synthesizing code for emboldening and slanting
* (specification).
*
* Copyright (C) 2000-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/********* *********/
/********* WARNING, THIS IS ALPHA CODE! THIS API *********/
/********* IS DUE TO CHANGE UNTIL STRICTLY NOTIFIED BY THE *********/
/********* FREETYPE DEVELOPMENT TEAM *********/
/********* *********/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* Main reason for not lifting the functions in this module to a */
/* 'standard' API is that the used parameters for emboldening and */
/* slanting are not configurable. Consider the functions as a */
/* code resource that should be copied into the application and */
/* adapted to the particular needs. */
#ifndef FTSYNTH_H_
#define FTSYNTH_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/* Embolden a glyph by a 'reasonable' value (which is highly a matter of */
/* taste). This function is actually a convenience function, providing */
/* a wrapper for @FT_Outline_Embolden and @FT_Bitmap_Embolden. */
/* */
/* For emboldened outlines the height, width, and advance metrics are */
/* increased by the strength of the emboldening -- this even affects */
/* mono-width fonts! */
/* */
/* You can also call @FT_Outline_Get_CBox to get precise values. */
FT_EXPORT( void )
FT_GlyphSlot_Embolden( FT_GlyphSlot slot );
/* Precisely adjust the glyph weight either horizontally or vertically. */
/* The `xdelta` and `ydelta` values are fractions of the face Em size */
/* (in fixed-point format). Considering that a regular face would have */
/* stem widths on the order of 0.1 Em, a delta of 0.05 (0x0CCC) should */
/* be very noticeable. To increase or decrease the weight, use positive */
/* or negative values, respectively. */
FT_EXPORT( void )
FT_GlyphSlot_AdjustWeight( FT_GlyphSlot slot,
FT_Fixed xdelta,
FT_Fixed ydelta );
/* Slant an outline glyph to the right by about 12 degrees. */
FT_EXPORT( void )
FT_GlyphSlot_Oblique( FT_GlyphSlot slot );
/* Slant an outline glyph by a given sine of an angle. You can apply */
/* slant along either x- or y-axis by choosing a corresponding non-zero */
/* argument. If both slants are non-zero, some affine transformation */
/* will result. */
FT_EXPORT( void )
FT_GlyphSlot_Slant( FT_GlyphSlot slot,
FT_Fixed xslant,
FT_Fixed yslant );
/* */
FT_END_HEADER
#endif /* FTSYNTH_H_ */
/* END */

350
Example/include/freetype/ftsystem.h
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/****************************************************************************
*
* ftsystem.h
*
* FreeType low-level system interface definition (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSYSTEM_H_
#define FTSYSTEM_H_
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* system_interface
*
* @title:
* System Interface
*
* @abstract:
* How FreeType manages memory and i/o.
*
* @description:
* This section contains various definitions related to memory management
* and i/o access. You need to understand this information if you want to
* use a custom memory manager or you own i/o streams.
*
*/
/**************************************************************************
*
* M E M O R Y M A N A G E M E N T
*
*/
/**************************************************************************
*
* @type:
* FT_Memory
*
* @description:
* A handle to a given memory manager object, defined with an
* @FT_MemoryRec structure.
*
*/
typedef struct FT_MemoryRec_* FT_Memory;
/**************************************************************************
*
* @functype:
* FT_Alloc_Func
*
* @description:
* A function used to allocate `size` bytes from `memory`.
*
* @input:
* memory ::
* A handle to the source memory manager.
*
* size ::
* The size in bytes to allocate.
*
* @return:
* Address of new memory block. 0~in case of failure.
*
*/
typedef void*
(*FT_Alloc_Func)( FT_Memory memory,
long size );
/**************************************************************************
*
* @functype:
* FT_Free_Func
*
* @description:
* A function used to release a given block of memory.
*
* @input:
* memory ::
* A handle to the source memory manager.
*
* block ::
* The address of the target memory block.
*
*/
typedef void
(*FT_Free_Func)( FT_Memory memory,
void* block );
/**************************************************************************
*
* @functype:
* FT_Realloc_Func
*
* @description:
* A function used to re-allocate a given block of memory.
*
* @input:
* memory ::
* A handle to the source memory manager.
*
* cur_size ::
* The block's current size in bytes.
*
* new_size ::
* The block's requested new size.
*
* block ::
* The block's current address.
*
* @return:
* New block address. 0~in case of memory shortage.
*
* @note:
* In case of error, the old block must still be available.
*
*/
typedef void*
(*FT_Realloc_Func)( FT_Memory memory,
long cur_size,
long new_size,
void* block );
/**************************************************************************
*
* @struct:
* FT_MemoryRec
*
* @description:
* A structure used to describe a given memory manager to FreeType~2.
*
* @fields:
* user ::
* A generic typeless pointer for user data.
*
* alloc ::
* A pointer type to an allocation function.
*
* free ::
* A pointer type to an memory freeing function.
*
* realloc ::
* A pointer type to a reallocation function.
*
*/
struct FT_MemoryRec_
{
void* user;
FT_Alloc_Func alloc;
FT_Free_Func free;
FT_Realloc_Func realloc;
};
/**************************************************************************
*
* I / O M A N A G E M E N T
*
*/
/**************************************************************************
*
* @type:
* FT_Stream
*
* @description:
* A handle to an input stream.
*
* @also:
* See @FT_StreamRec for the publicly accessible fields of a given stream
* object.
*
*/
typedef struct FT_StreamRec_* FT_Stream;
/**************************************************************************
*
* @struct:
* FT_StreamDesc
*
* @description:
* A union type used to store either a long or a pointer. This is used
* to store a file descriptor or a `FILE*` in an input stream.
*
*/
typedef union FT_StreamDesc_
{
long value;
void* pointer;
} FT_StreamDesc;
/**************************************************************************
*
* @functype:
* FT_Stream_IoFunc
*
* @description:
* A function used to seek and read data from a given input stream.
*
* @input:
* stream ::
* A handle to the source stream.
*
* offset ::
* The offset from the start of the stream to seek to.
*
* buffer ::
* The address of the read buffer.
*
* count ::
* The number of bytes to read from the stream.
*
* @return:
* If count >~0, return the number of bytes effectively read by the
* stream (after seeking to `offset`). If count ==~0, return the status
* of the seek operation (non-zero indicates an error).
*
*/
typedef unsigned long
(*FT_Stream_IoFunc)( FT_Stream stream,
unsigned long offset,
unsigned char* buffer,
unsigned long count );
/**************************************************************************
*
* @functype:
* FT_Stream_CloseFunc
*
* @description:
* A function used to close a given input stream.
*
* @input:
* stream ::
* A handle to the target stream.
*
*/
typedef void
(*FT_Stream_CloseFunc)( FT_Stream stream );
/**************************************************************************
*
* @struct:
* FT_StreamRec
*
* @description:
* A structure used to describe an input stream.
*
* @input:
* base ::
* For memory-based streams, this is the address of the first stream
* byte in memory. This field should always be set to `NULL` for
* disk-based streams.
*
* size ::
* The stream size in bytes.
*
* In case of compressed streams where the size is unknown before
* actually doing the decompression, the value is set to 0x7FFFFFFF.
* (Note that this size value can occur for normal streams also; it is
* thus just a hint.)
*
* pos ::
* The current position within the stream.
*
* descriptor ::
* This field is a union that can hold an integer or a pointer. It is
* used by stream implementations to store file descriptors or `FILE*`
* pointers.
*
* pathname ::
* This field is completely ignored by FreeType. However, it is often
* useful during debugging to use it to store the stream's filename
* (where available).
*
* read ::
* The stream's input function.
*
* close ::
* The stream's close function.
*
* memory ::
* The memory manager to use to preload frames. This is set internally
* by FreeType and shouldn't be touched by stream implementations.
*
* cursor ::
* This field is set and used internally by FreeType when parsing
* frames. In particular, the `FT_GET_XXX` macros use this instead of
* the `pos` field.
*
* limit ::
* This field is set and used internally by FreeType when parsing
* frames.
*
*/
typedef struct FT_StreamRec_
{
unsigned char* base;
unsigned long size;
unsigned long pos;
FT_StreamDesc descriptor;
FT_StreamDesc pathname;
FT_Stream_IoFunc read;
FT_Stream_CloseFunc close;
FT_Memory memory;
unsigned char* cursor;
unsigned char* limit;
} FT_StreamRec;
/* */
FT_END_HEADER
#endif /* FTSYSTEM_H_ */
/* END */

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Example/include/freetype/fttrigon.h
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/****************************************************************************
*
* fttrigon.h
*
* FreeType trigonometric functions (specification).
*
* Copyright (C) 2001-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTTRIGON_H_
#define FTTRIGON_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* computations
*
*/
/**************************************************************************
*
* @type:
* FT_Angle
*
* @description:
* This type is used to model angle values in FreeType. Note that the
* angle is a 16.16 fixed-point value expressed in degrees.
*
*/
typedef FT_Fixed FT_Angle;
/**************************************************************************
*
* @macro:
* FT_ANGLE_PI
*
* @description:
* The angle pi expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_PI ( 180L << 16 )
/**************************************************************************
*
* @macro:
* FT_ANGLE_2PI
*
* @description:
* The angle 2*pi expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_2PI ( FT_ANGLE_PI * 2 )
/**************************************************************************
*
* @macro:
* FT_ANGLE_PI2
*
* @description:
* The angle pi/2 expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_PI2 ( FT_ANGLE_PI / 2 )
/**************************************************************************
*
* @macro:
* FT_ANGLE_PI4
*
* @description:
* The angle pi/4 expressed in @FT_Angle units.
*
*/
#define FT_ANGLE_PI4 ( FT_ANGLE_PI / 4 )
/**************************************************************************
*
* @function:
* FT_Sin
*
* @description:
* Return the sinus of a given angle in fixed-point format.
*
* @input:
* angle ::
* The input angle.
*
* @return:
* The sinus value.
*
* @note:
* If you need both the sinus and cosinus for a given angle, use the
* function @FT_Vector_Unit.
*
*/
FT_EXPORT( FT_Fixed )
FT_Sin( FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Cos
*
* @description:
* Return the cosinus of a given angle in fixed-point format.
*
* @input:
* angle ::
* The input angle.
*
* @return:
* The cosinus value.
*
* @note:
* If you need both the sinus and cosinus for a given angle, use the
* function @FT_Vector_Unit.
*
*/
FT_EXPORT( FT_Fixed )
FT_Cos( FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Tan
*
* @description:
* Return the tangent of a given angle in fixed-point format.
*
* @input:
* angle ::
* The input angle.
*
* @return:
* The tangent value.
*
*/
FT_EXPORT( FT_Fixed )
FT_Tan( FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Atan2
*
* @description:
* Return the arc-tangent corresponding to a given vector (x,y) in the 2d
* plane.
*
* @input:
* x ::
* The horizontal vector coordinate.
*
* y ::
* The vertical vector coordinate.
*
* @return:
* The arc-tangent value (i.e. angle).
*
*/
FT_EXPORT( FT_Angle )
FT_Atan2( FT_Fixed x,
FT_Fixed y );
/**************************************************************************
*
* @function:
* FT_Angle_Diff
*
* @description:
* Return the difference between two angles. The result is always
* constrained to the ]-PI..PI] interval.
*
* @input:
* angle1 ::
* First angle.
*
* angle2 ::
* Second angle.
*
* @return:
* Constrained value of `angle2-angle1`.
*
*/
FT_EXPORT( FT_Angle )
FT_Angle_Diff( FT_Angle angle1,
FT_Angle angle2 );
/**************************************************************************
*
* @function:
* FT_Vector_Unit
*
* @description:
* Return the unit vector corresponding to a given angle. After the
* call, the value of `vec.x` will be `cos(angle)`, and the value of
* `vec.y` will be `sin(angle)`.
*
* This function is useful to retrieve both the sinus and cosinus of a
* given angle quickly.
*
* @output:
* vec ::
* The address of target vector.
*
* @input:
* angle ::
* The input angle.
*
*/
FT_EXPORT( void )
FT_Vector_Unit( FT_Vector* vec,
FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Vector_Rotate
*
* @description:
* Rotate a vector by a given angle.
*
* @inout:
* vec ::
* The address of target vector.
*
* @input:
* angle ::
* The input angle.
*
*/
FT_EXPORT( void )
FT_Vector_Rotate( FT_Vector* vec,
FT_Angle angle );
/**************************************************************************
*
* @function:
* FT_Vector_Length
*
* @description:
* Return the length of a given vector.
*
* @input:
* vec ::
* The address of target vector.
*
* @return:
* The vector length, expressed in the same units that the original
* vector coordinates.
*
*/
FT_EXPORT( FT_Fixed )
FT_Vector_Length( FT_Vector* vec );
/**************************************************************************
*
* @function:
* FT_Vector_Polarize
*
* @description:
* Compute both the length and angle of a given vector.
*
* @input:
* vec ::
* The address of source vector.
*
* @output:
* length ::
* The vector length.
*
* angle ::
* The vector angle.
*
*/
FT_EXPORT( void )
FT_Vector_Polarize( FT_Vector* vec,
FT_Fixed *length,
FT_Angle *angle );
/**************************************************************************
*
* @function:
* FT_Vector_From_Polar
*
* @description:
* Compute vector coordinates from a length and angle.
*
* @output:
* vec ::
* The address of source vector.
*
* @input:
* length ::
* The vector length.
*
* angle ::
* The vector angle.
*
*/
FT_EXPORT( void )
FT_Vector_From_Polar( FT_Vector* vec,
FT_Fixed length,
FT_Angle angle );
/* */
FT_END_HEADER
#endif /* FTTRIGON_H_ */
/* END */

617
Example/include/freetype/fttypes.h
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/****************************************************************************
*
* fttypes.h
*
* FreeType simple types definitions (specification only).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTTYPES_H_
#define FTTYPES_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/ftsystem.h>
#include <freetype/ftimage.h>
#include <stddef.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* basic_types
*
* @title:
* Basic Data Types
*
* @abstract:
* The basic data types defined by the library.
*
* @description:
* This section contains the basic data types defined by FreeType~2,
* ranging from simple scalar types to bitmap descriptors. More
* font-specific structures are defined in a different section. Note
* that FreeType does not use floating-point data types. Fractional
* values are represented by fixed-point integers, with lower bits
* storing the fractional part.
*
* @order:
* FT_Byte
* FT_Bytes
* FT_Char
* FT_Int
* FT_UInt
* FT_Int16
* FT_UInt16
* FT_Int32
* FT_UInt32
* FT_Int64
* FT_UInt64
* FT_Short
* FT_UShort
* FT_Long
* FT_ULong
* FT_Bool
* FT_Offset
* FT_PtrDist
* FT_String
* FT_Tag
* FT_Error
* FT_Fixed
* FT_Pointer
* FT_Pos
* FT_Vector
* FT_BBox
* FT_Matrix
* FT_FWord
* FT_UFWord
* FT_F2Dot14
* FT_UnitVector
* FT_F26Dot6
* FT_Data
*
* FT_MAKE_TAG
*
* FT_Generic
* FT_Generic_Finalizer
*
* FT_Bitmap
* FT_Pixel_Mode
* FT_Palette_Mode
* FT_Glyph_Format
* FT_IMAGE_TAG
*
*/
/**************************************************************************
*
* @type:
* FT_Bool
*
* @description:
* A typedef of unsigned char, used for simple booleans. As usual,
* values 1 and~0 represent true and false, respectively.
*/
typedef unsigned char FT_Bool;
/**************************************************************************
*
* @type:
* FT_FWord
*
* @description:
* A signed 16-bit integer used to store a distance in original font
* units.
*/
typedef signed short FT_FWord; /* distance in FUnits */
/**************************************************************************
*
* @type:
* FT_UFWord
*
* @description:
* An unsigned 16-bit integer used to store a distance in original font
* units.
*/
typedef unsigned short FT_UFWord; /* unsigned distance */
/**************************************************************************
*
* @type:
* FT_Char
*
* @description:
* A simple typedef for the _signed_ char type.
*/
typedef signed char FT_Char;
/**************************************************************************
*
* @type:
* FT_Byte
*
* @description:
* A simple typedef for the _unsigned_ char type.
*/
typedef unsigned char FT_Byte;
/**************************************************************************
*
* @type:
* FT_Bytes
*
* @description:
* A typedef for constant memory areas.
*/
typedef const FT_Byte* FT_Bytes;
/**************************************************************************
*
* @type:
* FT_Tag
*
* @description:
* A typedef for 32-bit tags (as used in the SFNT format).
*/
typedef FT_UInt32 FT_Tag;
/**************************************************************************
*
* @type:
* FT_String
*
* @description:
* A simple typedef for the char type, usually used for strings.
*/
typedef char FT_String;
/**************************************************************************
*
* @type:
* FT_Short
*
* @description:
* A typedef for signed short.
*/
typedef signed short FT_Short;
/**************************************************************************
*
* @type:
* FT_UShort
*
* @description:
* A typedef for unsigned short.
*/
typedef unsigned short FT_UShort;
/**************************************************************************
*
* @type:
* FT_Int
*
* @description:
* A typedef for the int type.
*/
typedef signed int FT_Int;
/**************************************************************************
*
* @type:
* FT_UInt
*
* @description:
* A typedef for the unsigned int type.
*/
typedef unsigned int FT_UInt;
/**************************************************************************
*
* @type:
* FT_Long
*
* @description:
* A typedef for signed long.
*/
typedef signed long FT_Long;
/**************************************************************************
*
* @type:
* FT_ULong
*
* @description:
* A typedef for unsigned long.
*/
typedef unsigned long FT_ULong;
/**************************************************************************
*
* @type:
* FT_F2Dot14
*
* @description:
* A signed 2.14 fixed-point type used for unit vectors.
*/
typedef signed short FT_F2Dot14;
/**************************************************************************
*
* @type:
* FT_F26Dot6
*
* @description:
* A signed 26.6 fixed-point type used for vectorial pixel coordinates.
*/
typedef signed long FT_F26Dot6;
/**************************************************************************
*
* @type:
* FT_Fixed
*
* @description:
* This type is used to store 16.16 fixed-point values, like scaling
* values or matrix coefficients.
*/
typedef signed long FT_Fixed;
/**************************************************************************
*
* @type:
* FT_Error
*
* @description:
* The FreeType error code type. A value of~0 is always interpreted as a
* successful operation.
*/
typedef int FT_Error;
/**************************************************************************
*
* @type:
* FT_Pointer
*
* @description:
* A simple typedef for a typeless pointer.
*/
typedef void* FT_Pointer;
/**************************************************************************
*
* @type:
* FT_Offset
*
* @description:
* This is equivalent to the ANSI~C `size_t` type, i.e., the largest
* _unsigned_ integer type used to express a file size or position, or a
* memory block size.
*/
typedef size_t FT_Offset;
/**************************************************************************
*
* @type:
* FT_PtrDist
*
* @description:
* This is equivalent to the ANSI~C `ptrdiff_t` type, i.e., the largest
* _signed_ integer type used to express the distance between two
* pointers.
*/
typedef ft_ptrdiff_t FT_PtrDist;
/**************************************************************************
*
* @struct:
* FT_UnitVector
*
* @description:
* A simple structure used to store a 2D vector unit vector. Uses
* FT_F2Dot14 types.
*
* @fields:
* x ::
* Horizontal coordinate.
*
* y ::
* Vertical coordinate.
*/
typedef struct FT_UnitVector_
{
FT_F2Dot14 x;
FT_F2Dot14 y;
} FT_UnitVector;
/**************************************************************************
*
* @struct:
* FT_Matrix
*
* @description:
* A simple structure used to store a 2x2 matrix. Coefficients are in
* 16.16 fixed-point format. The computation performed is:
*
* ```
* x' = x*xx + y*xy
* y' = x*yx + y*yy
* ```
*
* @fields:
* xx ::
* Matrix coefficient.
*
* xy ::
* Matrix coefficient.
*
* yx ::
* Matrix coefficient.
*
* yy ::
* Matrix coefficient.
*/
typedef struct FT_Matrix_
{
FT_Fixed xx, xy;
FT_Fixed yx, yy;
} FT_Matrix;
/**************************************************************************
*
* @struct:
* FT_Data
*
* @description:
* Read-only binary data represented as a pointer and a length.
*
* @fields:
* pointer ::
* The data.
*
* length ::
* The length of the data in bytes.
*/
typedef struct FT_Data_
{
const FT_Byte* pointer;
FT_UInt length;
} FT_Data;
/**************************************************************************
*
* @functype:
* FT_Generic_Finalizer
*
* @description:
* Describe a function used to destroy the 'client' data of any FreeType
* object. See the description of the @FT_Generic type for details of
* usage.
*
* @input:
* The address of the FreeType object that is under finalization. Its
* client data is accessed through its `generic` field.
*/
typedef void (*FT_Generic_Finalizer)( void* object );
/**************************************************************************
*
* @struct:
* FT_Generic
*
* @description:
* Client applications often need to associate their own data to a
* variety of FreeType core objects. For example, a text layout API
* might want to associate a glyph cache to a given size object.
*
* Some FreeType object contains a `generic` field, of type `FT_Generic`,
* which usage is left to client applications and font servers.
*
* It can be used to store a pointer to client-specific data, as well as
* the address of a 'finalizer' function, which will be called by
* FreeType when the object is destroyed (for example, the previous
* client example would put the address of the glyph cache destructor in
* the `finalizer` field).
*
* @fields:
* data ::
* A typeless pointer to any client-specified data. This field is
* completely ignored by the FreeType library.
*
* finalizer ::
* A pointer to a 'generic finalizer' function, which will be called
* when the object is destroyed. If this field is set to `NULL`, no
* code will be called.
*/
typedef struct FT_Generic_
{
void* data;
FT_Generic_Finalizer finalizer;
} FT_Generic;
/**************************************************************************
*
* @macro:
* FT_MAKE_TAG
*
* @description:
* This macro converts four-letter tags that are used to label TrueType
* tables into an `FT_Tag` type, to be used within FreeType.
*
* @note:
* The produced values **must** be 32-bit integers. Don't redefine this
* macro.
*/
#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
( ( FT_STATIC_BYTE_CAST( FT_Tag, _x1 ) << 24 ) | \
( FT_STATIC_BYTE_CAST( FT_Tag, _x2 ) << 16 ) | \
( FT_STATIC_BYTE_CAST( FT_Tag, _x3 ) << 8 ) | \
FT_STATIC_BYTE_CAST( FT_Tag, _x4 ) )
/*************************************************************************/
/*************************************************************************/
/* */
/* L I S T M A N A G E M E N T */
/* */
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @section:
* list_processing
*
*/
/**************************************************************************
*
* @type:
* FT_ListNode
*
* @description:
* Many elements and objects in FreeType are listed through an @FT_List
* record (see @FT_ListRec). As its name suggests, an FT_ListNode is a
* handle to a single list element.
*/
typedef struct FT_ListNodeRec_* FT_ListNode;
/**************************************************************************
*
* @type:
* FT_List
*
* @description:
* A handle to a list record (see @FT_ListRec).
*/
typedef struct FT_ListRec_* FT_List;
/**************************************************************************
*
* @struct:
* FT_ListNodeRec
*
* @description:
* A structure used to hold a single list element.
*
* @fields:
* prev ::
* The previous element in the list. `NULL` if first.
*
* next ::
* The next element in the list. `NULL` if last.
*
* data ::
* A typeless pointer to the listed object.
*/
typedef struct FT_ListNodeRec_
{
FT_ListNode prev;
FT_ListNode next;
void* data;
} FT_ListNodeRec;
/**************************************************************************
*
* @struct:
* FT_ListRec
*
* @description:
* A structure used to hold a simple doubly-linked list. These are used
* in many parts of FreeType.
*
* @fields:
* head ::
* The head (first element) of doubly-linked list.
*
* tail ::
* The tail (last element) of doubly-linked list.
*/
typedef struct FT_ListRec_
{
FT_ListNode head;
FT_ListNode tail;
} FT_ListRec;
/* */
#define FT_IS_EMPTY( list ) ( (list).head == 0 )
#define FT_BOOL( x ) FT_STATIC_CAST( FT_Bool, (x) != 0 )
/* concatenate C tokens */
#define FT_ERR_XCAT( x, y ) x ## y
#define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y )
/* see `ftmoderr.h` for descriptions of the following macros */
#define FT_ERR( e ) FT_ERR_CAT( FT_ERR_PREFIX, e )
#define FT_ERROR_BASE( x ) ( (x) & 0xFF )
#define FT_ERROR_MODULE( x ) ( (x) & 0xFF00U )
#define FT_ERR_EQ( x, e ) \
( FT_ERROR_BASE( x ) == FT_ERROR_BASE( FT_ERR( e ) ) )
#define FT_ERR_NEQ( x, e ) \
( FT_ERROR_BASE( x ) != FT_ERROR_BASE( FT_ERR( e ) ) )
FT_END_HEADER
#endif /* FTTYPES_H_ */
/* END */

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Example/include/freetype/ftwinfnt.h
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/****************************************************************************
*
* ftwinfnt.h
*
* FreeType API for accessing Windows fnt-specific data.
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTWINFNT_H_
#define FTWINFNT_H_
#include <freetype/freetype.h>
#ifdef FREETYPE_H
#error "freetype.h of FreeType 1 has been loaded!"
#error "Please fix the directory search order for header files"
#error "so that freetype.h of FreeType 2 is found first."
#endif
FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
* winfnt_fonts
*
* @title:
* Window FNT Files
*
* @abstract:
* Windows FNT-specific API.
*
* @description:
* This section contains the declaration of Windows FNT-specific
* functions.
*
*/
/**************************************************************************
*
* @enum:
* FT_WinFNT_ID_XXX
*
* @description:
* A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec.
* Exact mapping tables for the various 'cpXXXX' encodings (except for
* 'cp1361') can be found at 'ftp://ftp.unicode.org/Public/' in the
* `MAPPINGS/VENDORS/MICSFT/WINDOWS` subdirectory. 'cp1361' is roughly a
* superset of `MAPPINGS/OBSOLETE/EASTASIA/KSC/JOHAB.TXT`.
*
* @values:
* FT_WinFNT_ID_DEFAULT ::
* This is used for font enumeration and font creation as a 'don't
* care' value. Valid font files don't contain this value. When
* querying for information about the character set of the font that is
* currently selected into a specified device context, this return
* value (of the related Windows API) simply denotes failure.
*
* FT_WinFNT_ID_SYMBOL ::
* There is no known mapping table available.
*
* FT_WinFNT_ID_MAC ::
* Mac Roman encoding.
*
* FT_WinFNT_ID_OEM ::
* From Michael Poettgen <michael@poettgen.de>:
*
* The 'Windows Font Mapping' article says that `FT_WinFNT_ID_OEM` is
* used for the charset of vector fonts, like `modern.fon`,
* `roman.fon`, and `script.fon` on Windows.
*
* The 'CreateFont' documentation says: The `FT_WinFNT_ID_OEM` value
* specifies a character set that is operating-system dependent.
*
* The 'IFIMETRICS' documentation from the 'Windows Driver Development
* Kit' says: This font supports an OEM-specific character set. The
* OEM character set is system dependent.
*
* In general OEM, as opposed to ANSI (i.e., 'cp1252'), denotes the
* second default codepage that most international versions of Windows
* have. It is one of the OEM codepages from
*
* https://docs.microsoft.com/en-us/windows/desktop/intl/code-page-identifiers
* ,
*
* and is used for the 'DOS boxes', to support legacy applications. A
* German Windows version for example usually uses ANSI codepage 1252
* and OEM codepage 850.
*
* FT_WinFNT_ID_CP874 ::
* A superset of Thai TIS 620 and ISO 8859-11.
*
* FT_WinFNT_ID_CP932 ::
* A superset of Japanese Shift-JIS (with minor deviations).
*
* FT_WinFNT_ID_CP936 ::
* A superset of simplified Chinese GB 2312-1980 (with different
* ordering and minor deviations).
*
* FT_WinFNT_ID_CP949 ::
* A superset of Korean Hangul KS~C 5601-1987 (with different ordering
* and minor deviations).
*
* FT_WinFNT_ID_CP950 ::
* A superset of traditional Chinese Big~5 ETen (with different
* ordering and minor deviations).
*
* FT_WinFNT_ID_CP1250 ::
* A superset of East European ISO 8859-2 (with slightly different
* ordering).
*
* FT_WinFNT_ID_CP1251 ::
* A superset of Russian ISO 8859-5 (with different ordering).
*
* FT_WinFNT_ID_CP1252 ::
* ANSI encoding. A superset of ISO 8859-1.
*
* FT_WinFNT_ID_CP1253 ::
* A superset of Greek ISO 8859-7 (with minor modifications).
*
* FT_WinFNT_ID_CP1254 ::
* A superset of Turkish ISO 8859-9.
*
* FT_WinFNT_ID_CP1255 ::
* A superset of Hebrew ISO 8859-8 (with some modifications).
*
* FT_WinFNT_ID_CP1256 ::
* A superset of Arabic ISO 8859-6 (with different ordering).
*
* FT_WinFNT_ID_CP1257 ::
* A superset of Baltic ISO 8859-13 (with some deviations).
*
* FT_WinFNT_ID_CP1258 ::
* For Vietnamese. This encoding doesn't cover all necessary
* characters.
*
* FT_WinFNT_ID_CP1361 ::
* Korean (Johab).
*/
#define FT_WinFNT_ID_CP1252 0
#define FT_WinFNT_ID_DEFAULT 1
#define FT_WinFNT_ID_SYMBOL 2
#define FT_WinFNT_ID_MAC 77
#define FT_WinFNT_ID_CP932 128
#define FT_WinFNT_ID_CP949 129
#define FT_WinFNT_ID_CP1361 130
#define FT_WinFNT_ID_CP936 134
#define FT_WinFNT_ID_CP950 136
#define FT_WinFNT_ID_CP1253 161
#define FT_WinFNT_ID_CP1254 162
#define FT_WinFNT_ID_CP1258 163
#define FT_WinFNT_ID_CP1255 177
#define FT_WinFNT_ID_CP1256 178
#define FT_WinFNT_ID_CP1257 186
#define FT_WinFNT_ID_CP1251 204
#define FT_WinFNT_ID_CP874 222
#define FT_WinFNT_ID_CP1250 238
#define FT_WinFNT_ID_OEM 255
/**************************************************************************
*
* @struct:
* FT_WinFNT_HeaderRec
*
* @description:
* Windows FNT Header info.
*/
typedef struct FT_WinFNT_HeaderRec_
{
FT_UShort version;
FT_ULong file_size;
FT_Byte copyright[60];
FT_UShort file_type;
FT_UShort nominal_point_size;
FT_UShort vertical_resolution;
FT_UShort horizontal_resolution;
FT_UShort ascent;
FT_UShort internal_leading;
FT_UShort external_leading;
FT_Byte italic;
FT_Byte underline;
FT_Byte strike_out;
FT_UShort weight;
FT_Byte charset;
FT_UShort pixel_width;
FT_UShort pixel_height;
FT_Byte pitch_and_family;
FT_UShort avg_width;
FT_UShort max_width;
FT_Byte first_char;
FT_Byte last_char;
FT_Byte default_char;
FT_Byte break_char;
FT_UShort bytes_per_row;
FT_ULong device_offset;
FT_ULong face_name_offset;
FT_ULong bits_pointer;
FT_ULong bits_offset;
FT_Byte reserved;
FT_ULong flags;
FT_UShort A_space;
FT_UShort B_space;
FT_UShort C_space;
FT_UShort color_table_offset;
FT_ULong reserved1[4];
} FT_WinFNT_HeaderRec;
/**************************************************************************
*
* @struct:
* FT_WinFNT_Header
*
* @description:
* A handle to an @FT_WinFNT_HeaderRec structure.
*/
typedef struct FT_WinFNT_HeaderRec_* FT_WinFNT_Header;
/**************************************************************************
*
* @function:
* FT_Get_WinFNT_Header
*
* @description:
* Retrieve a Windows FNT font info header.
*
* @input:
* face ::
* A handle to the input face.
*
* @output:
* aheader ::
* The WinFNT header.
*
* @return:
* FreeType error code. 0~means success.
*
* @note:
* This function only works with Windows FNT faces, returning an error
* otherwise.
*/
FT_EXPORT( FT_Error )
FT_Get_WinFNT_Header( FT_Face face,
FT_WinFNT_HeaderRec *aheader );
/* */
FT_END_HEADER
#endif /* FTWINFNT_H_ */
/* END */
/* Local Variables: */
/* coding: utf-8 */
/* End: */

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/****************************************************************************
*
* autohint.h
*
* High-level 'autohint' module-specific interface (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* The auto-hinter is used to load and automatically hint glyphs if a
* format-specific hinter isn't available.
*
*/
#ifndef AUTOHINT_H_
#define AUTOHINT_H_
/**************************************************************************
*
* A small technical note regarding automatic hinting in order to clarify
* this module interface.
*
* An automatic hinter might compute two kinds of data for a given face:
*
* - global hints: Usually some metrics that describe global properties
* of the face. It is computed by scanning more or less
* aggressively the glyphs in the face, and thus can be
* very slow to compute (even if the size of global hints
* is really small).
*
* - glyph hints: These describe some important features of the glyph
* outline, as well as how to align them. They are
* generally much faster to compute than global hints.
*
* The current FreeType auto-hinter does a pretty good job while performing
* fast computations for both global and glyph hints. However, we might be
* interested in introducing more complex and powerful algorithms in the
* future, like the one described in the John D. Hobby paper, which
* unfortunately requires a lot more horsepower.
*
* Because a sufficiently sophisticated font management system would
* typically implement an LRU cache of opened face objects to reduce memory
* usage, it is a good idea to be able to avoid recomputing global hints
* every time the same face is re-opened.
*
* We thus provide the ability to cache global hints outside of the face
* object, in order to speed up font re-opening time. Of course, this
* feature is purely optional, so most client programs won't even notice
* it.
*
* I initially thought that it would be a good idea to cache the glyph
* hints too. However, my general idea now is that if you really need to
* cache these too, you are simply in need of a new font format, where all
* this information could be stored within the font file and decoded on the
* fly.
*
*/
#include <freetype/freetype.h>
FT_BEGIN_HEADER
typedef struct FT_AutoHinterRec_ *FT_AutoHinter;
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlobalGetFunc
*
* @description:
* Retrieve the global hints computed for a given face object. The
* resulting data is dissociated from the face and will survive a call to
* FT_Done_Face(). It must be discarded through the API
* FT_AutoHinter_GlobalDoneFunc().
*
* @input:
* hinter ::
* A handle to the source auto-hinter.
*
* face ::
* A handle to the source face object.
*
* @output:
* global_hints ::
* A typeless pointer to the global hints.
*
* global_len ::
* The size in bytes of the global hints.
*/
typedef void
(*FT_AutoHinter_GlobalGetFunc)( FT_AutoHinter hinter,
FT_Face face,
void** global_hints,
long* global_len );
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlobalDoneFunc
*
* @description:
* Discard the global hints retrieved through
* FT_AutoHinter_GlobalGetFunc(). This is the only way these hints are
* freed from memory.
*
* @input:
* hinter ::
* A handle to the auto-hinter module.
*
* global ::
* A pointer to retrieved global hints to discard.
*/
typedef void
(*FT_AutoHinter_GlobalDoneFunc)( FT_AutoHinter hinter,
void* global );
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlobalResetFunc
*
* @description:
* This function is used to recompute the global metrics in a given font.
* This is useful when global font data changes (e.g. Multiple Masters
* fonts where blend coordinates change).
*
* @input:
* hinter ::
* A handle to the source auto-hinter.
*
* face ::
* A handle to the face.
*/
typedef void
(*FT_AutoHinter_GlobalResetFunc)( FT_AutoHinter hinter,
FT_Face face );
/**************************************************************************
*
* @functype:
* FT_AutoHinter_GlyphLoadFunc
*
* @description:
* This function is used to load, scale, and automatically hint a glyph
* from a given face.
*
* @input:
* face ::
* A handle to the face.
*
* glyph_index ::
* The glyph index.
*
* load_flags ::
* The load flags.
*
* @note:
* This function is capable of loading composite glyphs by hinting each
* sub-glyph independently (which improves quality).
*
* It will call the font driver with @FT_Load_Glyph, with
* @FT_LOAD_NO_SCALE set.
*/
typedef FT_Error
(*FT_AutoHinter_GlyphLoadFunc)( FT_AutoHinter hinter,
FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags );
/**************************************************************************
*
* @struct:
* FT_AutoHinter_InterfaceRec
*
* @description:
* The auto-hinter module's interface.
*/
typedef struct FT_AutoHinter_InterfaceRec_
{
FT_AutoHinter_GlobalResetFunc reset_face;
FT_AutoHinter_GlobalGetFunc get_global_hints;
FT_AutoHinter_GlobalDoneFunc done_global_hints;
FT_AutoHinter_GlyphLoadFunc load_glyph;
} FT_AutoHinter_InterfaceRec, *FT_AutoHinter_Interface;
#define FT_DECLARE_AUTOHINTER_INTERFACE( class_ ) \
FT_CALLBACK_TABLE const FT_AutoHinter_InterfaceRec class_;
#define FT_DEFINE_AUTOHINTER_INTERFACE( \
class_, \
reset_face_, \
get_global_hints_, \
done_global_hints_, \
load_glyph_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_AutoHinter_InterfaceRec class_ = \
{ \
reset_face_, \
get_global_hints_, \
done_global_hints_, \
load_glyph_ \
};
FT_END_HEADER
#endif /* AUTOHINT_H_ */
/* END */

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/****************************************************************************
*
* cffotypes.h
*
* Basic OpenType/CFF object type definitions (specification).
*
* Copyright (C) 2017-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef CFFOTYPES_H_
#define CFFOTYPES_H_
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/cfftypes.h>
#include <freetype/internal/tttypes.h>
#include <freetype/internal/services/svpscmap.h>
#include <freetype/internal/pshints.h>
FT_BEGIN_HEADER
typedef TT_Face CFF_Face;
/**************************************************************************
*
* @type:
* CFF_Size
*
* @description:
* A handle to an OpenType size object.
*/
typedef struct CFF_SizeRec_
{
FT_SizeRec root;
FT_ULong strike_index; /* 0xFFFFFFFF to indicate invalid */
} CFF_SizeRec, *CFF_Size;
/**************************************************************************
*
* @type:
* CFF_GlyphSlot
*
* @description:
* A handle to an OpenType glyph slot object.
*/
typedef struct CFF_GlyphSlotRec_
{
FT_GlyphSlotRec root;
FT_Bool hint;
FT_Bool scaled;
FT_Fixed x_scale;
FT_Fixed y_scale;
} CFF_GlyphSlotRec, *CFF_GlyphSlot;
/**************************************************************************
*
* @type:
* CFF_Internal
*
* @description:
* The interface to the 'internal' field of `FT_Size`.
*/
typedef struct CFF_InternalRec_
{
PSH_Globals topfont;
PSH_Globals subfonts[CFF_MAX_CID_FONTS];
} CFF_InternalRec, *CFF_Internal;
/**************************************************************************
*
* Subglyph transformation record.
*/
typedef struct CFF_Transform_
{
FT_Fixed xx, xy; /* transformation matrix coefficients */
FT_Fixed yx, yy;
FT_F26Dot6 ox, oy; /* offsets */
} CFF_Transform;
FT_END_HEADER
#endif /* CFFOTYPES_H_ */
/* END */

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Example/include/freetype/internal/cfftypes.h
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/****************************************************************************
*
* cfftypes.h
*
* Basic OpenType/CFF type definitions and interface (specification
* only).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef CFFTYPES_H_
#define CFFTYPES_H_
#include <freetype/freetype.h>
#include <freetype/t1tables.h>
#include <freetype/internal/ftserv.h>
#include <freetype/internal/services/svpscmap.h>
#include <freetype/internal/pshints.h>
#include <freetype/internal/t1types.h>
FT_BEGIN_HEADER
/**************************************************************************
*
* @struct:
* CFF_IndexRec
*
* @description:
* A structure used to model a CFF Index table.
*
* @fields:
* stream ::
* The source input stream.
*
* start ::
* The position of the first index byte in the input stream.
*
* count ::
* The number of elements in the index.
*
* off_size ::
* The size in bytes of object offsets in index.
*
* data_offset ::
* The position of first data byte in the index's bytes.
*
* data_size ::
* The size of the data table in this index.
*
* offsets ::
* A table of element offsets in the index. Must be loaded explicitly.
*
* bytes ::
* If the index is loaded in memory, its bytes.
*/
typedef struct CFF_IndexRec_
{
FT_Stream stream;
FT_ULong start;
FT_UInt hdr_size;
FT_UInt count;
FT_Byte off_size;
FT_ULong data_offset;
FT_ULong data_size;
FT_ULong* offsets;
FT_Byte* bytes;
} CFF_IndexRec, *CFF_Index;
typedef struct CFF_EncodingRec_
{
FT_UInt format;
FT_ULong offset;
FT_UInt count;
FT_UShort sids [256]; /* avoid dynamic allocations */
FT_UShort codes[256];
} CFF_EncodingRec, *CFF_Encoding;
typedef struct CFF_CharsetRec_
{
FT_UInt format;
FT_ULong offset;
FT_UShort* sids;
FT_UShort* cids; /* the inverse mapping of `sids'; only needed */
/* for CID-keyed fonts */
FT_UInt max_cid;
FT_UInt num_glyphs;
} CFF_CharsetRec, *CFF_Charset;
/* cf. similar fields in file `ttgxvar.h' from the `truetype' module */
typedef struct CFF_VarData_
{
#if 0
FT_UInt itemCount; /* not used; always zero */
FT_UInt shortDeltaCount; /* not used; always zero */
#endif
FT_UInt regionIdxCount; /* number of region indexes */
FT_UInt* regionIndices; /* array of `regionIdxCount' indices; */
/* these index `varRegionList' */
} CFF_VarData;
/* contribution of one axis to a region */
typedef struct CFF_AxisCoords_
{
FT_Fixed startCoord;
FT_Fixed peakCoord; /* zero peak means no effect (factor = 1) */
FT_Fixed endCoord;
} CFF_AxisCoords;
typedef struct CFF_VarRegion_
{
CFF_AxisCoords* axisList; /* array of axisCount records */
} CFF_VarRegion;
typedef struct CFF_VStoreRec_
{
FT_UInt dataCount;
CFF_VarData* varData; /* array of dataCount records */
/* vsindex indexes this array */
FT_UShort axisCount;
FT_UInt regionCount; /* total number of regions defined */
CFF_VarRegion* varRegionList;
} CFF_VStoreRec, *CFF_VStore;
/* forward reference */
typedef struct CFF_FontRec_* CFF_Font;
/* This object manages one cached blend vector. */
/* */
/* There is a BlendRec for Private DICT parsing in each subfont */
/* and a BlendRec for charstrings in CF2_Font instance data. */
/* A cached BV may be used across DICTs or Charstrings if inputs */
/* have not changed. */
/* */
/* `usedBV' is reset at the start of each parse or charstring. */
/* vsindex cannot be changed after a BV is used. */
/* */
/* Note: NDV is long (32/64 bit), while BV is 16.16 (FT_Int32). */
typedef struct CFF_BlendRec_
{
FT_Bool builtBV; /* blendV has been built */
FT_Bool usedBV; /* blendV has been used */
CFF_Font font; /* top level font struct */
FT_UInt lastVsindex; /* last vsindex used */
FT_UInt lenNDV; /* normDV length (aka numAxes) */
FT_Fixed* lastNDV; /* last NDV used */
FT_UInt lenBV; /* BlendV length (aka numMasters) */
FT_Int32* BV; /* current blendV (per DICT/glyph) */
} CFF_BlendRec, *CFF_Blend;
typedef struct CFF_FontRecDictRec_
{
FT_UInt version;
FT_UInt notice;
FT_UInt copyright;
FT_UInt full_name;
FT_UInt family_name;
FT_UInt weight;
FT_Bool is_fixed_pitch;
FT_Fixed italic_angle;
FT_Fixed underline_position;
FT_Fixed underline_thickness;
FT_Int paint_type;
FT_Int charstring_type;
FT_Matrix font_matrix;
FT_Bool has_font_matrix;
FT_ULong units_per_em; /* temporarily used as scaling value also */
FT_Vector font_offset;
FT_ULong unique_id;
FT_BBox font_bbox;
FT_Pos stroke_width;
FT_ULong charset_offset;
FT_ULong encoding_offset;
FT_ULong charstrings_offset;
FT_ULong private_offset;
FT_ULong private_size;
FT_Long synthetic_base;
FT_UInt embedded_postscript;
/* these should only be used for the top-level font dictionary */
FT_UInt cid_registry;
FT_UInt cid_ordering;
FT_Long cid_supplement;
FT_Long cid_font_version;
FT_Long cid_font_revision;
FT_Long cid_font_type;
FT_ULong cid_count;
FT_ULong cid_uid_base;
FT_ULong cid_fd_array_offset;
FT_ULong cid_fd_select_offset;
FT_UInt cid_font_name;
/* the next fields come from the data of the deprecated */
/* `MultipleMaster' operator; they are needed to parse the (also */
/* deprecated) `blend' operator in Type 2 charstrings */
FT_UShort num_designs;
FT_UShort num_axes;
/* fields for CFF2 */
FT_ULong vstore_offset;
FT_UInt maxstack;
} CFF_FontRecDictRec, *CFF_FontRecDict;
/* forward reference */
typedef struct CFF_SubFontRec_* CFF_SubFont;
typedef struct CFF_PrivateRec_
{
FT_Byte num_blue_values;
FT_Byte num_other_blues;
FT_Byte num_family_blues;
FT_Byte num_family_other_blues;
FT_Pos blue_values[14];
FT_Pos other_blues[10];
FT_Pos family_blues[14];
FT_Pos family_other_blues[10];
FT_Fixed blue_scale;
FT_Pos blue_shift;
FT_Pos blue_fuzz;
FT_Pos standard_width;
FT_Pos standard_height;
FT_Byte num_snap_widths;
FT_Byte num_snap_heights;
FT_Pos snap_widths[13];
FT_Pos snap_heights[13];
FT_Bool force_bold;
FT_Fixed force_bold_threshold;
FT_Int lenIV;
FT_Int language_group;
FT_Fixed expansion_factor;
FT_Long initial_random_seed;
FT_ULong local_subrs_offset;
FT_Pos default_width;
FT_Pos nominal_width;
/* fields for CFF2 */
FT_UInt vsindex;
CFF_SubFont subfont;
} CFF_PrivateRec, *CFF_Private;
typedef struct CFF_FDSelectRec_
{
FT_Byte format;
FT_UInt range_count;
/* that's the table, taken from the file `as is' */
FT_Byte* data;
FT_UInt data_size;
/* small cache for format 3 only */
FT_UInt cache_first;
FT_UInt cache_count;
FT_Byte cache_fd;
} CFF_FDSelectRec, *CFF_FDSelect;
/* A SubFont packs a font dict and a private dict together. They are */
/* needed to support CID-keyed CFF fonts. */
typedef struct CFF_SubFontRec_
{
CFF_FontRecDictRec font_dict;
CFF_PrivateRec private_dict;
/* fields for CFF2 */
CFF_BlendRec blend; /* current blend vector */
FT_UInt lenNDV; /* current length NDV or zero */
FT_Fixed* NDV; /* ptr to current NDV or NULL */
/* `blend_stack' is a writable buffer to hold blend results. */
/* This buffer is to the side of the normal cff parser stack; */
/* `cff_parse_blend' and `cff_blend_doBlend' push blend results here. */
/* The normal stack then points to these values instead of the DICT */
/* because all other operators in Private DICT clear the stack. */
/* `blend_stack' could be cleared at each operator other than blend. */
/* Blended values are stored as 5-byte fixed-point values. */
FT_Byte* blend_stack; /* base of stack allocation */
FT_Byte* blend_top; /* first empty slot */
FT_UInt blend_used; /* number of bytes in use */
FT_UInt blend_alloc; /* number of bytes allocated */
CFF_IndexRec local_subrs_index;
FT_Byte** local_subrs; /* array of pointers */
/* into Local Subrs INDEX data */
FT_UInt32 random;
} CFF_SubFontRec;
#define CFF_MAX_CID_FONTS 256
typedef struct CFF_FontRec_
{
FT_Library library;
FT_Stream stream;
FT_Memory memory; /* TODO: take this from stream->memory? */
FT_ULong base_offset; /* offset to start of CFF */
FT_UInt num_faces;
FT_UInt num_glyphs;
FT_Byte version_major;
FT_Byte version_minor;
FT_Byte header_size;
FT_UInt top_dict_length; /* cff2 only */
FT_Bool cff2;
CFF_IndexRec name_index;
CFF_IndexRec top_dict_index;
CFF_IndexRec global_subrs_index;
CFF_EncodingRec encoding;
CFF_CharsetRec charset;
CFF_IndexRec charstrings_index;
CFF_IndexRec font_dict_index;
CFF_IndexRec private_index;
CFF_IndexRec local_subrs_index;
FT_String* font_name;
/* array of pointers into Global Subrs INDEX data */
FT_Byte** global_subrs;
/* array of pointers into String INDEX data stored at string_pool */
FT_UInt num_strings;
FT_Byte** strings;
FT_Byte* string_pool;
FT_ULong string_pool_size;
CFF_SubFontRec top_font;
FT_UInt num_subfonts;
CFF_SubFont subfonts[CFF_MAX_CID_FONTS];
CFF_FDSelectRec fd_select;
/* interface to PostScript hinter */
PSHinter_Service pshinter;
/* interface to Postscript Names service */
FT_Service_PsCMaps psnames;
/* interface to CFFLoad service */
const void* cffload;
/* since version 2.3.0 */
PS_FontInfoRec* font_info; /* font info dictionary */
/* since version 2.3.6 */
FT_String* registry;
FT_String* ordering;
/* since version 2.4.12 */
FT_Generic cf2_instance;
/* since version 2.7.1 */
CFF_VStoreRec vstore; /* parsed vstore structure */
/* since version 2.9 */
PS_FontExtraRec* font_extra;
} CFF_FontRec;
FT_END_HEADER
#endif /* CFFTYPES_H_ */
/* END */

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/****************************************************************************
*
* internal/compiler-macros.h
*
* Compiler-specific macro definitions used internally by FreeType.
*
* Copyright (C) 2020-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef INTERNAL_COMPILER_MACROS_H_
#define INTERNAL_COMPILER_MACROS_H_
#include <freetype/config/public-macros.h>
FT_BEGIN_HEADER
/* Fix compiler warning with sgi compiler. */
#if defined( __sgi ) && !defined( __GNUC__ )
# if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
# pragma set woff 3505
# endif
#endif
/* Fix compiler warning with sgi compiler. */
#if defined( __sgi ) && !defined( __GNUC__ )
# if defined( _COMPILER_VERSION ) && ( _COMPILER_VERSION >= 730 )
# pragma set woff 3505
# endif
#endif
/* Newer compilers warn for fall-through case statements. */
#ifndef FALL_THROUGH
# if ( defined( __STDC_VERSION__ ) && __STDC_VERSION__ > 201710L ) || \
( defined( __cplusplus ) && __cplusplus > 201402L )
# define FALL_THROUGH [[__fallthrough__]]
# elif ( defined( __GNUC__ ) && __GNUC__ >= 7 ) || \
( defined( __clang__ ) && \
( defined( __apple_build_version__ ) \
? __apple_build_version__ >= 12000000 \
: __clang_major__ >= 10 ) )
# define FALL_THROUGH __attribute__(( __fallthrough__ ))
# else
# define FALL_THROUGH ( (void)0 )
# endif
#endif
/*
* When defining a macro that expands to a non-trivial C statement, use
* FT_BEGIN_STMNT and FT_END_STMNT to enclose the macro's body. This
* ensures there are no surprises when the macro is invoked in conditional
* branches.
*
* Example:
*
* #define LOG( ... ) \
* FT_BEGIN_STMNT \
* if ( logging_enabled ) \
* log( __VA_ARGS__ ); \
* FT_END_STMNT
*/
#define FT_BEGIN_STMNT do {
#define FT_END_STMNT } while ( 0 )
/*
* FT_DUMMY_STMNT expands to an empty C statement. Useful for
* conditionally defined statement macros.
*
* Example:
*
* #ifdef BUILD_CONFIG_LOGGING
* #define LOG( ... ) \
* FT_BEGIN_STMNT \
* if ( logging_enabled ) \
* log( __VA_ARGS__ ); \
* FT_END_STMNT
* #else
* # define LOG( ... ) FT_DUMMY_STMNT
* #endif
*/
#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
#ifdef __UINTPTR_TYPE__
/*
* GCC and Clang both provide a `__UINTPTR_TYPE__` that can be used to
* avoid a dependency on `stdint.h`.
*/
# define FT_UINT_TO_POINTER( x ) (void *)(__UINTPTR_TYPE__)(x)
#elif defined( _WIN64 )
/* only 64bit Windows uses the LLP64 data model, i.e., */
/* 32-bit integers, 64-bit pointers. */
# define FT_UINT_TO_POINTER( x ) (void *)(unsigned __int64)(x)
#else
# define FT_UINT_TO_POINTER( x ) (void *)(unsigned long)(x)
#endif
/*
* Use `FT_TYPEOF( type )` to cast a value to `type`. This is useful to
* suppress signedness compilation warnings in macros.
*
* Example:
*
* #define PAD_( x, n ) ( (x) & ~FT_TYPEOF( x )( (n) - 1 ) )
*
* (The `typeof` condition is taken from gnulib's `intprops.h` header
* file.)
*/
#if ( ( defined( __GNUC__ ) && __GNUC__ >= 2 ) || \
( defined( __IBMC__ ) && __IBMC__ >= 1210 && \
defined( __IBM__TYPEOF__ ) ) || \
( defined( __SUNPRO_C ) && __SUNPRO_C >= 0x5110 && !__STDC__ ) )
#define FT_TYPEOF( type ) ( __typeof__ ( type ) )
#else
#define FT_TYPEOF( type ) /* empty */
#endif
/*
* Mark a function declaration as internal to the library. This ensures
* that it will not be exposed by default to client code, and helps
* generate smaller and faster code on ELF-based platforms. Place this
* before a function declaration.
*/
/* Visual C, mingw */
#if defined( _WIN32 )
#define FT_INTERNAL_FUNCTION_ATTRIBUTE /* empty */
/* gcc, clang */
#elif ( defined( __GNUC__ ) && __GNUC__ >= 4 ) || defined( __clang__ )
#define FT_INTERNAL_FUNCTION_ATTRIBUTE \
__attribute__(( visibility( "hidden" ) ))
/* Sun */
#elif defined( __SUNPRO_C ) && __SUNPRO_C >= 0x550
#define FT_INTERNAL_FUNCTION_ATTRIBUTE __hidden
#else
#define FT_INTERNAL_FUNCTION_ATTRIBUTE /* empty */
#endif
/*
* FreeType supports compilation of its C sources with a C++ compiler (in
* C++ mode); this introduces a number of subtle issues.
*
* The main one is that a C++ function declaration and its definition must
* have the same 'linkage'. Because all FreeType headers declare their
* functions with C linkage (i.e., within an `extern "C" { ... }` block
* due to the magic of FT_BEGIN_HEADER and FT_END_HEADER), their
* definition in FreeType sources should also be prefixed with `extern
* "C"` when compiled in C++ mode.
*
* The `FT_FUNCTION_DECLARATION` and `FT_FUNCTION_DEFINITION` macros are
* provided to deal with this case, as well as `FT_CALLBACK_DEF` and its
* siblings below.
*/
/*
* `FT_FUNCTION_DECLARATION( type )` can be used to write a C function
* declaration to ensure it will have C linkage when the library is built
* with a C++ compiler. The parameter is the function's return type, so a
* declaration would look like
*
* FT_FUNCTION_DECLARATION( int )
* foo( int x );
*
* NOTE: This requires that all uses are inside of `FT_BEGIN_HEADER ...
* FT_END_HEADER` blocks, which guarantees that the declarations have C
* linkage when the headers are included by C++ sources.
*
* NOTE: Do not use directly. Use `FT_LOCAL`, `FT_BASE`, and `FT_EXPORT`
* instead.
*/
#define FT_FUNCTION_DECLARATION( x ) extern x
/*
* Same as `FT_FUNCTION_DECLARATION`, but for function definitions instead.
*
* NOTE: Do not use directly. Use `FT_LOCAL_DEF`, `FT_BASE_DEF`, and
* `FT_EXPORT_DEF` instead.
*/
#ifdef __cplusplus
#define FT_FUNCTION_DEFINITION( x ) extern "C" x
#else
#define FT_FUNCTION_DEFINITION( x ) x
#endif
/*
* Use `FT_LOCAL` and `FT_LOCAL_DEF` to declare and define, respectively,
* an internal FreeType function that is only used by the sources of a
* single `src/module/` directory. This ensures that the functions are
* turned into static ones at build time, resulting in smaller and faster
* code.
*/
#ifdef FT_MAKE_OPTION_SINGLE_OBJECT
#define FT_LOCAL( x ) static x
#define FT_LOCAL_DEF( x ) static x
#else
#define FT_LOCAL( x ) FT_INTERNAL_FUNCTION_ATTRIBUTE \
FT_FUNCTION_DECLARATION( x )
#define FT_LOCAL_DEF( x ) FT_FUNCTION_DEFINITION( x )
#endif /* FT_MAKE_OPTION_SINGLE_OBJECT */
/*
* Use `FT_LOCAL_ARRAY` and `FT_LOCAL_ARRAY_DEF` to declare and define,
* respectively, a constant array that must be accessed from several
* sources in the same `src/module/` sub-directory, and which are internal
* to the library.
*/
#define FT_LOCAL_ARRAY( x ) FT_INTERNAL_FUNCTION_ATTRIBUTE \
extern const x
#define FT_LOCAL_ARRAY_DEF( x ) FT_FUNCTION_DEFINITION( const x )
/*
* `Use FT_BASE` and `FT_BASE_DEF` to declare and define, respectively, an
* internal library function that is used by more than a single module.
*/
#define FT_BASE( x ) FT_INTERNAL_FUNCTION_ATTRIBUTE \
FT_FUNCTION_DECLARATION( x )
#define FT_BASE_DEF( x ) FT_FUNCTION_DEFINITION( x )
/*
* NOTE: Conditionally define `FT_EXPORT_VAR` due to its definition in
* `src/smooth/ftgrays.h` to make the header more portable.
*/
#ifndef FT_EXPORT_VAR
#define FT_EXPORT_VAR( x ) FT_FUNCTION_DECLARATION( x )
#endif
/*
* When compiling FreeType as a DLL or DSO with hidden visibility,
* some systems/compilers need a special attribute in front OR after
* the return type of function declarations.
*
* Two macros are used within the FreeType source code to define
* exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`.
*
* - `FT_EXPORT( return_type )`
*
* is used in a function declaration, as in
*
* ```
* FT_EXPORT( FT_Error )
* FT_Init_FreeType( FT_Library* alibrary );
* ```
*
* - `FT_EXPORT_DEF( return_type )`
*
* is used in a function definition, as in
*
* ```
* FT_EXPORT_DEF( FT_Error )
* FT_Init_FreeType( FT_Library* alibrary )
* {
* ... some code ...
* return FT_Err_Ok;
* }
* ```
*
* You can provide your own implementation of `FT_EXPORT` and
* `FT_EXPORT_DEF` here if you want.
*
* To export a variable, use `FT_EXPORT_VAR`.
*/
/* See `freetype/config/public-macros.h` for the `FT_EXPORT` definition */
#define FT_EXPORT_DEF( x ) FT_FUNCTION_DEFINITION( x )
/*
* The following macros are needed to compile the library with a
* C++ compiler and with 16bit compilers.
*/
/*
* This is special. Within C++, you must specify `extern "C"` for
* functions which are used via function pointers, and you also
* must do that for structures which contain function pointers to
* assure C linkage -- it's not possible to have (local) anonymous
* functions which are accessed by (global) function pointers.
*
*
* FT_CALLBACK_DEF is used to _define_ a callback function,
* located in the same source code file as the structure that uses
* it. FT_COMPARE_DEF, in addition, ensures the `cdecl` calling
* convention on x86, required by the C library function `qsort`.
*
* FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare
* and define a callback function, respectively, in a similar way
* as FT_BASE and FT_BASE_DEF work.
*
* FT_CALLBACK_TABLE is used to _declare_ a constant variable that
* contains pointers to callback functions.
*
* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable
* that contains pointers to callback functions.
*
*
* Some 16bit compilers have to redefine these macros to insert
* the infamous `_cdecl` or `__fastcall` declarations.
*/
#ifdef __cplusplus
#define FT_CALLBACK_DEF( x ) extern "C" x
#else
#define FT_CALLBACK_DEF( x ) static x
#endif
#if defined( __GNUC__ ) && defined( __i386__ )
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __attribute__(( cdecl ))
#elif defined( _MSC_VER ) && defined( _M_IX86 )
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __cdecl
#elif defined( __WATCOMC__ ) && __WATCOMC__ >= 1240
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __watcall
#else
#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x )
#endif
#define FT_BASE_CALLBACK( x ) FT_FUNCTION_DECLARATION( x )
#define FT_BASE_CALLBACK_DEF( x ) FT_FUNCTION_DEFINITION( x )
#ifndef FT_CALLBACK_TABLE
#ifdef __cplusplus
#define FT_CALLBACK_TABLE extern "C"
#define FT_CALLBACK_TABLE_DEF extern "C"
#else
#define FT_CALLBACK_TABLE extern
#define FT_CALLBACK_TABLE_DEF /* nothing */
#endif
#endif /* FT_CALLBACK_TABLE */
FT_END_HEADER
#endif /* INTERNAL_COMPILER_MACROS_H_ */

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/****************************************************************************
*
* ftcalc.h
*
* Arithmetic computations (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTCALC_H_
#define FTCALC_H_
#include <freetype/freetype.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* FT_MulDiv() and FT_MulFix() are declared in freetype.h.
*
*/
#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
/* Provide assembler fragments for performance-critical functions. */
/* These must be defined `static __inline__' with GCC. */
#if defined( __CC_ARM ) || defined( __ARMCC__ ) /* RVCT */
#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
/* documentation is in freetype.h */
static __inline FT_Int32
FT_MulFix_arm( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 t, t2;
__asm
{
smull t2, t, b, a /* (lo=t2,hi=t) = a*b */
mov a, t, asr #31 /* a = (hi >> 31) */
add a, a, #0x8000 /* a += 0x8000 */
adds t2, t2, a /* t2 += a */
adc t, t, #0 /* t += carry */
mov a, t2, lsr #16 /* a = t2 >> 16 */
orr a, a, t, lsl #16 /* a |= t << 16 */
}
return a;
}
#endif /* __CC_ARM || __ARMCC__ */
#ifdef __GNUC__
#if defined( __arm__ ) && \
( !defined( __thumb__ ) || defined( __thumb2__ ) ) && \
!( defined( __CC_ARM ) || defined( __ARMCC__ ) )
#define FT_MULFIX_ASSEMBLER FT_MulFix_arm
/* documentation is in freetype.h */
static __inline__ FT_Int32
FT_MulFix_arm( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 t, t2;
__asm__ __volatile__ (
"smull %1, %2, %4, %3\n\t" /* (lo=%1,hi=%2) = a*b */
"mov %0, %2, asr #31\n\t" /* %0 = (hi >> 31) */
#if defined( __clang__ ) && defined( __thumb2__ )
"add.w %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
#else
"add %0, %0, #0x8000\n\t" /* %0 += 0x8000 */
#endif
"adds %1, %1, %0\n\t" /* %1 += %0 */
"adc %2, %2, #0\n\t" /* %2 += carry */
"mov %0, %1, lsr #16\n\t" /* %0 = %1 >> 16 */
"orr %0, %0, %2, lsl #16\n\t" /* %0 |= %2 << 16 */
: "=r"(a), "=&r"(t2), "=&r"(t)
: "r"(a), "r"(b)
: "cc" );
return a;
}
#endif /* __arm__ && */
/* ( __thumb2__ || !__thumb__ ) && */
/* !( __CC_ARM || __ARMCC__ ) */
#if defined( __i386__ )
#define FT_MULFIX_ASSEMBLER FT_MulFix_i386
/* documentation is in freetype.h */
static __inline__ FT_Int32
FT_MulFix_i386( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 result;
__asm__ __volatile__ (
"imul %%edx\n"
"movl %%edx, %%ecx\n"
"sarl $31, %%ecx\n"
"addl $0x8000, %%ecx\n"
"addl %%ecx, %%eax\n"
"adcl $0, %%edx\n"
"shrl $16, %%eax\n"
"shll $16, %%edx\n"
"addl %%edx, %%eax\n"
: "=a"(result), "=d"(b)
: "a"(a), "d"(b)
: "%ecx", "cc" );
return result;
}
#endif /* i386 */
#endif /* __GNUC__ */
#ifdef _MSC_VER /* Visual C++ */
#ifdef _M_IX86
#define FT_MULFIX_ASSEMBLER FT_MulFix_i386
/* documentation is in freetype.h */
static __inline FT_Int32
FT_MulFix_i386( FT_Int32 a,
FT_Int32 b )
{
FT_Int32 result;
__asm
{
mov eax, a
mov edx, b
imul edx
mov ecx, edx
sar ecx, 31
add ecx, 8000h
add eax, ecx
adc edx, 0
shr eax, 16
shl edx, 16
add eax, edx
mov result, eax
}
return result;
}
#endif /* _M_IX86 */
#endif /* _MSC_VER */
#if defined( __GNUC__ ) && defined( __x86_64__ )
#define FT_MULFIX_ASSEMBLER FT_MulFix_x86_64
static __inline__ FT_Int32
FT_MulFix_x86_64( FT_Int32 a,
FT_Int32 b )
{
/* Temporarily disable the warning that C90 doesn't support */
/* `long long'. */
#if __GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 6 )
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wlong-long"
#endif
#if 1
/* Technically not an assembly fragment, but GCC does a really good */
/* job at inlining it and generating good machine code for it. */
long long ret, tmp;
ret = (long long)a * b;
tmp = ret >> 63;
ret += 0x8000 + tmp;
return (FT_Int32)( ret >> 16 );
#else
/* For some reason, GCC 4.6 on Ubuntu 12.04 generates invalid machine */
/* code from the lines below. The main issue is that `wide_a' is not */
/* properly initialized by sign-extending `a'. Instead, the generated */
/* machine code assumes that the register that contains `a' on input */
/* can be used directly as a 64-bit value, which is wrong most of the */
/* time. */
long long wide_a = (long long)a;
long long wide_b = (long long)b;
long long result;
__asm__ __volatile__ (
"imul %2, %1\n"
"mov %1, %0\n"
"sar $63, %0\n"
"lea 0x8000(%1, %0), %0\n"
"sar $16, %0\n"
: "=&r"(result), "=&r"(wide_a)
: "r"(wide_b)
: "cc" );
return (FT_Int32)result;
#endif
#if __GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 6 )
#pragma GCC diagnostic pop
#endif
}
#endif /* __GNUC__ && __x86_64__ */
#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
#ifdef FT_CONFIG_OPTION_INLINE_MULFIX
#ifdef FT_MULFIX_ASSEMBLER
#define FT_MulFix( a, b ) FT_MULFIX_ASSEMBLER( (FT_Int32)(a), (FT_Int32)(b) )
#endif
#endif
/**************************************************************************
*
* @function:
* FT_MulDiv_No_Round
*
* @description:
* A very simple function used to perform the computation '(a*b)/c'
* (without rounding) with maximum accuracy (it uses a 64-bit
* intermediate integer whenever necessary).
*
* This function isn't necessarily as fast as some processor-specific
* operations, but is at least completely portable.
*
* @input:
* a ::
* The first multiplier.
* b ::
* The second multiplier.
* c ::
* The divisor.
*
* @return:
* The result of '(a*b)/c'. This function never traps when trying to
* divide by zero; it simply returns 'MaxInt' or 'MinInt' depending on
* the signs of 'a' and 'b'.
*/
FT_BASE( FT_Long )
FT_MulDiv_No_Round( FT_Long a,
FT_Long b,
FT_Long c );
/**************************************************************************
*
* @function:
* FT_MulAddFix
*
* @description:
* Compute `(s[0] * f[0] + s[1] * f[1] + ...) / 0x10000`, where `s[n]` is
* usually a 16.16 scalar.
*
* @input:
* s ::
* The array of scalars.
* f ::
* The array of factors.
* count ::
* The number of entries in the array.
*
* @return:
* The result of `(s[0] * f[0] + s[1] * f[1] + ...) / 0x10000`.
*
* @note:
* This function is currently used for the scaled delta computation of
* variation stores. It internally uses 64-bit data types when
* available, otherwise it emulates 64-bit math by using 32-bit
* operations, which produce a correct result but most likely at a slower
* performance in comparison to the implementation base on `int64_t`.
*
*/
FT_BASE( FT_Int32 )
FT_MulAddFix( FT_Fixed* s,
FT_Int32* f,
FT_UInt count );
/*
* A variant of FT_Matrix_Multiply which scales its result afterwards. The
* idea is that both `a' and `b' are scaled by factors of 10 so that the
* values are as precise as possible to get a correct result during the
* 64bit multiplication. Let `sa' and `sb' be the scaling factors of `a'
* and `b', respectively, then the scaling factor of the result is `sa*sb'.
*/
FT_BASE( void )
FT_Matrix_Multiply_Scaled( const FT_Matrix* a,
FT_Matrix *b,
FT_Long scaling );
/*
* Check a matrix. If the transformation would lead to extreme shear or
* extreme scaling, for example, return 0. If everything is OK, return 1.
*
* Based on geometric considerations we use the following inequality to
* identify a degenerate matrix.
*
* 50 * abs(xx*yy - xy*yx) < xx^2 + xy^2 + yx^2 + yy^2
*
* Value 50 is heuristic.
*/
FT_BASE( FT_Bool )
FT_Matrix_Check( const FT_Matrix* matrix );
/*
* A variant of FT_Vector_Transform. See comments for
* FT_Matrix_Multiply_Scaled.
*/
FT_BASE( void )
FT_Vector_Transform_Scaled( FT_Vector* vector,
const FT_Matrix* matrix,
FT_Long scaling );
/*
* This function normalizes a vector and returns its original length. The
* normalized vector is a 16.16 fixed-point unit vector with length close
* to 0x10000. The accuracy of the returned length is limited to 16 bits
* also. The function utilizes quick inverse square root approximation
* without divisions and square roots relying on Newton's iterations
* instead.
*/
FT_BASE( FT_UInt32 )
FT_Vector_NormLen( FT_Vector* vector );
/*
* Return -1, 0, or +1, depending on the orientation of a given corner. We
* use the Cartesian coordinate system, with positive vertical values going
* upwards. The function returns +1 if the corner turns to the left, -1 to
* the right, and 0 for undecidable cases.
*/
FT_BASE( FT_Int )
ft_corner_orientation( FT_Pos in_x,
FT_Pos in_y,
FT_Pos out_x,
FT_Pos out_y );
/*
* Return TRUE if a corner is flat or nearly flat. This is equivalent to
* saying that the corner point is close to its neighbors, or inside an
* ellipse defined by the neighbor focal points to be more precise.
*/
FT_BASE( FT_Int )
ft_corner_is_flat( FT_Pos in_x,
FT_Pos in_y,
FT_Pos out_x,
FT_Pos out_y );
/*
* Return the most significant bit index.
*/
#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
#if defined( __clang__ ) || ( defined( __GNUC__ ) && \
( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) ) )
#if FT_SIZEOF_INT == 4
#define FT_MSB( x ) ( 31 - __builtin_clz( x ) )
#elif FT_SIZEOF_LONG == 4
#define FT_MSB( x ) ( 31 - __builtin_clzl( x ) )
#endif
#elif defined( _MSC_VER ) && _MSC_VER >= 1400
#if defined( _WIN32_WCE )
#include <cmnintrin.h>
#pragma intrinsic( _CountLeadingZeros )
#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) )
#elif defined( _M_ARM64 ) || defined( _M_ARM )
#include <intrin.h>
#pragma intrinsic( _CountLeadingZeros )
#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) )
#elif defined( _M_IX86 ) || defined( _M_AMD64 ) || defined( _M_IA64 )
#include <intrin.h>
#pragma intrinsic( _BitScanReverse )
static __inline FT_Int32
FT_MSB_i386( FT_UInt32 x )
{
unsigned long where;
_BitScanReverse( &where, x );
return (FT_Int32)where;
}
#define FT_MSB( x ) FT_MSB_i386( x )
#endif
#elif defined( __WATCOMC__ ) && defined( __386__ )
extern __inline FT_Int32
FT_MSB_i386( FT_UInt32 x );
#pragma aux FT_MSB_i386 = \
"bsr eax, eax" \
__parm [__eax] __nomemory \
__value [__eax] \
__modify __exact [__eax] __nomemory;
#define FT_MSB( x ) FT_MSB_i386( x )
#elif defined( __DECC ) || defined( __DECCXX )
#include <builtins.h>
#define FT_MSB( x ) (FT_Int)( 63 - _leadz( x ) )
#elif defined( _CRAYC )
#include <intrinsics.h>
#define FT_MSB( x ) (FT_Int)( 31 - _leadz32( x ) )
#endif /* FT_MSB macro definitions */
#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
#ifndef FT_MSB
FT_BASE( FT_Int )
FT_MSB( FT_UInt32 z );
#endif
/*
* Return sqrt(x*x+y*y), which is the same as `FT_Vector_Length' but uses
* two fixed-point arguments instead.
*/
FT_BASE( FT_Fixed )
FT_Hypot( FT_Fixed x,
FT_Fixed y );
#if 0
/**************************************************************************
*
* @function:
* FT_SqrtFixed
*
* @description:
* Computes the square root of a 16.16 fixed-point value.
*
* @input:
* x ::
* The value to compute the root for.
*
* @return:
* The result of 'sqrt(x)'.
*
* @note:
* This function is not very fast.
*/
FT_BASE( FT_Int32 )
FT_SqrtFixed( FT_Int32 x );
#endif /* 0 */
#define INT_TO_F26DOT6( x ) ( (FT_Long)(x) * 64 ) /* << 6 */
#define INT_TO_F2DOT14( x ) ( (FT_Long)(x) * 16384 ) /* << 14 */
#define INT_TO_FIXED( x ) ( (FT_Long)(x) * 65536 ) /* << 16 */
#define F2DOT14_TO_FIXED( x ) ( (FT_Long)(x) * 4 ) /* << 2 */
#define FIXED_TO_INT( x ) ( FT_RoundFix( x ) >> 16 )
#define ROUND_F26DOT6( x ) ( ( (x) + 32 - ( x < 0 ) ) & -64 )
/*
* The following macros have two purposes.
*
* - Tag places where overflow is expected and harmless.
*
* - Avoid run-time sanitizer errors.
*
* Use with care!
*/
#define ADD_INT( a, b ) \
(FT_Int)( (FT_UInt)(a) + (FT_UInt)(b) )
#define SUB_INT( a, b ) \
(FT_Int)( (FT_UInt)(a) - (FT_UInt)(b) )
#define MUL_INT( a, b ) \
(FT_Int)( (FT_UInt)(a) * (FT_UInt)(b) )
#define NEG_INT( a ) \
(FT_Int)( (FT_UInt)0 - (FT_UInt)(a) )
#define ADD_LONG( a, b ) \
(FT_Long)( (FT_ULong)(a) + (FT_ULong)(b) )
#define SUB_LONG( a, b ) \
(FT_Long)( (FT_ULong)(a) - (FT_ULong)(b) )
#define MUL_LONG( a, b ) \
(FT_Long)( (FT_ULong)(a) * (FT_ULong)(b) )
#define NEG_LONG( a ) \
(FT_Long)( (FT_ULong)0 - (FT_ULong)(a) )
#define ADD_INT32( a, b ) \
(FT_Int32)( (FT_UInt32)(a) + (FT_UInt32)(b) )
#define SUB_INT32( a, b ) \
(FT_Int32)( (FT_UInt32)(a) - (FT_UInt32)(b) )
#define MUL_INT32( a, b ) \
(FT_Int32)( (FT_UInt32)(a) * (FT_UInt32)(b) )
#define NEG_INT32( a ) \
(FT_Int32)( (FT_UInt32)0 - (FT_UInt32)(a) )
#ifdef FT_INT64
#define ADD_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) + (FT_UInt64)(b) )
#define SUB_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) - (FT_UInt64)(b) )
#define MUL_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) * (FT_UInt64)(b) )
#define NEG_INT64( a ) \
(FT_Int64)( (FT_UInt64)0 - (FT_UInt64)(a) )
#endif /* FT_INT64 */
FT_END_HEADER
#endif /* FTCALC_H_ */
/* END */

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/****************************************************************************
*
* ftdebug.h
*
* Debugging and logging component (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*
* IMPORTANT: A description of FreeType's debugging support can be
* found in 'docs/DEBUG.TXT'. Read it if you need to use or
* understand this code.
*
*/
#ifndef FTDEBUG_H_
#define FTDEBUG_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/freetype.h>
#include "compiler-macros.h"
#ifdef FT_DEBUG_LOGGING
#define DLG_STATIC
#include <dlg/output.h>
#include <dlg/dlg.h>
#include <freetype/ftlogging.h>
#endif /* FT_DEBUG_LOGGING */
FT_BEGIN_HEADER
/* force the definition of FT_DEBUG_LEVEL_TRACE if FT_DEBUG_LOGGING is */
/* already defined. */
/* */
#ifdef FT_DEBUG_LOGGING
#undef FT_DEBUG_LEVEL_TRACE
#define FT_DEBUG_LEVEL_TRACE
#endif
/* force the definition of FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE */
/* is already defined; this simplifies the following #ifdefs */
/* */
#ifdef FT_DEBUG_LEVEL_TRACE
#undef FT_DEBUG_LEVEL_ERROR
#define FT_DEBUG_LEVEL_ERROR
#endif
/**************************************************************************
*
* Define the trace enums as well as the trace levels array when they are
* needed.
*
*/
#ifdef FT_DEBUG_LEVEL_TRACE
#define FT_TRACE_DEF( x ) trace_ ## x ,
/* defining the enumeration */
typedef enum FT_Trace_
{
#include <freetype/internal/fttrace.h>
trace_count
} FT_Trace;
/* a pointer to the array of trace levels, */
/* provided by `src/base/ftdebug.c' */
extern int* ft_trace_levels;
#undef FT_TRACE_DEF
#endif /* FT_DEBUG_LEVEL_TRACE */
/**************************************************************************
*
* Define the FT_TRACE macro
*
* IMPORTANT!
*
* Each component must define the macro FT_COMPONENT to a valid FT_Trace
* value before using any TRACE macro.
*
* To get consistent logging output, there should be no newline character
* (i.e., '\n') or a single trailing one in the message string of
* `FT_TRACEx` and `FT_ERROR`.
*/
/*************************************************************************
*
* If FT_DEBUG_LOGGING is enabled, tracing messages are sent to dlg's API.
* If FT_DEBUG_LOGGING is disabled, tracing messages are sent to
* `FT_Message` (defined in ftdebug.c).
*/
#ifdef FT_DEBUG_LOGGING
/* we need two macros to convert the names of `FT_COMPONENT` to a string */
#define FT_LOGGING_TAG( x ) FT_LOGGING_TAG_( x )
#define FT_LOGGING_TAG_( x ) #x
/* we need two macros to convert the component and the trace level */
/* to a string that combines them */
#define FT_LOGGING_TAGX( x, y ) FT_LOGGING_TAGX_( x, y )
#define FT_LOGGING_TAGX_( x, y ) #x ":" #y
#define FT_LOG( level, varformat ) \
do \
{ \
const char* dlg_tag = FT_LOGGING_TAGX( FT_COMPONENT, level ); \
\
\
ft_add_tag( dlg_tag ); \
if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
{ \
if ( custom_output_handler != NULL ) \
FT_Logging_Callback varformat; \
else \
dlg_trace varformat; \
} \
ft_remove_tag( dlg_tag ); \
} while( 0 )
#else /* !FT_DEBUG_LOGGING */
#define FT_LOG( level, varformat ) \
do \
{ \
if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
FT_Message varformat; \
} while ( 0 )
#endif /* !FT_DEBUG_LOGGING */
#ifdef FT_DEBUG_LEVEL_TRACE
/* we need two macros here to make cpp expand `FT_COMPONENT' */
#define FT_TRACE_COMP( x ) FT_TRACE_COMP_( x )
#define FT_TRACE_COMP_( x ) trace_ ## x
#define FT_TRACE( level, varformat ) FT_LOG( level, varformat )
#else /* !FT_DEBUG_LEVEL_TRACE */
#define FT_TRACE( level, varformat ) do { } while ( 0 ) /* nothing */
#endif /* !FT_DEBUG_LEVEL_TRACE */
/**************************************************************************
*
* @function:
* FT_Trace_Get_Count
*
* @description:
* Return the number of available trace components.
*
* @return:
* The number of trace components. 0 if FreeType 2 is not built with
* FT_DEBUG_LEVEL_TRACE definition.
*
* @note:
* This function may be useful if you want to access elements of the
* internal trace levels array by an index.
*/
FT_BASE( FT_Int )
FT_Trace_Get_Count( void );
/**************************************************************************
*
* @function:
* FT_Trace_Get_Name
*
* @description:
* Return the name of a trace component.
*
* @input:
* The index of the trace component.
*
* @return:
* The name of the trace component. This is a statically allocated
* C~string, so do not free it after use. `NULL` if FreeType is not
* built with FT_DEBUG_LEVEL_TRACE definition.
*
* @note:
* Use @FT_Trace_Get_Count to get the number of available trace
* components.
*/
FT_BASE( const char* )
FT_Trace_Get_Name( FT_Int idx );
/**************************************************************************
*
* @function:
* FT_Trace_Disable
*
* @description:
* Switch off tracing temporarily. It can be activated again with
* @FT_Trace_Enable.
*/
FT_BASE( void )
FT_Trace_Disable( void );
/**************************************************************************
*
* @function:
* FT_Trace_Enable
*
* @description:
* Activate tracing. Use it after tracing has been switched off with
* @FT_Trace_Disable.
*/
FT_BASE( void )
FT_Trace_Enable( void );
/**************************************************************************
*
* You need two opening and closing parentheses!
*
* Example: FT_TRACE0(( "Value is %i", foo ))
*
* Output of the FT_TRACEX macros is sent to stderr.
*
*/
#define FT_TRACE0( varformat ) FT_TRACE( 0, varformat )
#define FT_TRACE1( varformat ) FT_TRACE( 1, varformat )
#define FT_TRACE2( varformat ) FT_TRACE( 2, varformat )
#define FT_TRACE3( varformat ) FT_TRACE( 3, varformat )
#define FT_TRACE4( varformat ) FT_TRACE( 4, varformat )
#define FT_TRACE5( varformat ) FT_TRACE( 5, varformat )
#define FT_TRACE6( varformat ) FT_TRACE( 6, varformat )
#define FT_TRACE7( varformat ) FT_TRACE( 7, varformat )
/**************************************************************************
*
* Define the FT_ERROR macro.
*
* Output of this macro is sent to stderr.
*
*/
#ifdef FT_DEBUG_LEVEL_ERROR
/**************************************************************************
*
* If FT_DEBUG_LOGGING is enabled, error messages are sent to dlg's API.
* If FT_DEBUG_LOGGING is disabled, error messages are sent to `FT_Message`
* (defined in ftdebug.c).
*
*/
#ifdef FT_DEBUG_LOGGING
#define FT_ERROR( varformat ) \
do \
{ \
const char* dlg_tag = FT_LOGGING_TAG( FT_COMPONENT ); \
\
\
ft_add_tag( dlg_tag ); \
dlg_trace varformat; \
ft_remove_tag( dlg_tag ); \
} while ( 0 )
#else /* !FT_DEBUG_LOGGING */
#define FT_ERROR( varformat ) FT_Message varformat
#endif /* !FT_DEBUG_LOGGING */
#else /* !FT_DEBUG_LEVEL_ERROR */
#define FT_ERROR( varformat ) do { } while ( 0 ) /* nothing */
#endif /* !FT_DEBUG_LEVEL_ERROR */
/**************************************************************************
*
* Define the FT_ASSERT and FT_THROW macros. The call to `FT_Throw` makes
* it possible to easily set a breakpoint at this function.
*
*/
#ifdef FT_DEBUG_LEVEL_ERROR
#define FT_ASSERT( condition ) \
do \
{ \
if ( !( condition ) ) \
FT_Panic( "assertion failed on line %d of file %s\n", \
__LINE__, __FILE__ ); \
} while ( 0 )
#define FT_THROW( e ) \
( FT_Throw( FT_ERR_CAT( FT_ERR_PREFIX, e ), \
__LINE__, \
__FILE__ ) | \
FT_ERR_CAT( FT_ERR_PREFIX, e ) )
#else /* !FT_DEBUG_LEVEL_ERROR */
#define FT_ASSERT( condition ) do { } while ( 0 )
#define FT_THROW( e ) FT_ERR_CAT( FT_ERR_PREFIX, e )
#endif /* !FT_DEBUG_LEVEL_ERROR */
/**************************************************************************
*
* Define `FT_Message` and `FT_Panic` when needed.
*
*/
#ifdef FT_DEBUG_LEVEL_ERROR
#include "stdio.h" /* for vfprintf() */
/* print a message */
FT_BASE( void )
FT_Message( const char* fmt,
... );
/* print a message and exit */
FT_BASE( void )
FT_Panic( const char* fmt,
... );
/* report file name and line number of an error */
FT_BASE( int )
FT_Throw( FT_Error error,
int line,
const char* file );
#endif /* FT_DEBUG_LEVEL_ERROR */
FT_BASE( void )
ft_debug_init( void );
#ifdef FT_DEBUG_LOGGING
/**************************************************************************
*
* 'dlg' uses output handlers to control how and where log messages are
* printed. Therefore we need to define a default output handler for
* FreeType.
*/
FT_BASE( void )
ft_log_handler( const struct dlg_origin* origin,
const char* string,
void* data );
/**************************************************************************
*
* 1. `ft_default_log_handler` stores the function pointer that is used
* internally by FreeType to print logs to a file.
*
* 2. `custom_output_handler` stores the function pointer to the callback
* function provided by the user.
*
* It is defined in `ftdebug.c`.
*/
extern dlg_handler ft_default_log_handler;
extern FT_Custom_Log_Handler custom_output_handler;
/**************************************************************************
*
* If FT_DEBUG_LOGGING macro is enabled, FreeType needs to initialize and
* un-initialize `FILE*`.
*
* These functions are defined in `ftdebug.c`.
*/
FT_BASE( void )
ft_logging_init( void );
FT_BASE( void )
ft_logging_deinit( void );
/**************************************************************************
*
* For printing the name of `FT_COMPONENT` along with the actual log we
* need to add a tag with the name of `FT_COMPONENT`.
*
* These functions are defined in `ftdebug.c`.
*/
FT_BASE( void )
ft_add_tag( const char* tag );
FT_BASE( void )
ft_remove_tag( const char* tag );
/**************************************************************************
*
* A function to print log data using a custom callback logging function
* (which is set using `FT_Set_Log_Handler`).
*
* This function is defined in `ftdebug.c`.
*/
FT_BASE( void )
FT_Logging_Callback( const char* fmt,
... );
#endif /* FT_DEBUG_LOGGING */
FT_END_HEADER
#endif /* FTDEBUG_H_ */
/* END */

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Example/include/freetype/internal/ftdrv.h
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/****************************************************************************
*
* ftdrv.h
*
* FreeType internal font driver interface (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTDRV_H_
#define FTDRV_H_
#include <freetype/ftmodapi.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
typedef FT_Error
(*FT_Face_InitFunc)( FT_Stream stream,
FT_Face face,
FT_Int typeface_index,
FT_Int num_params,
FT_Parameter* parameters );
typedef void
(*FT_Face_DoneFunc)( FT_Face face );
typedef FT_Error
(*FT_Size_InitFunc)( FT_Size size );
typedef void
(*FT_Size_DoneFunc)( FT_Size size );
typedef FT_Error
(*FT_Slot_InitFunc)( FT_GlyphSlot slot );
typedef void
(*FT_Slot_DoneFunc)( FT_GlyphSlot slot );
typedef FT_Error
(*FT_Size_RequestFunc)( FT_Size size,
FT_Size_Request req );
typedef FT_Error
(*FT_Size_SelectFunc)( FT_Size size,
FT_ULong size_index );
typedef FT_Error
(*FT_Slot_LoadFunc)( FT_GlyphSlot slot,
FT_Size size,
FT_UInt glyph_index,
FT_Int32 load_flags );
typedef FT_Error
(*FT_Face_GetKerningFunc)( FT_Face face,
FT_UInt left_glyph,
FT_UInt right_glyph,
FT_Vector* kerning );
typedef FT_Error
(*FT_Face_AttachFunc)( FT_Face face,
FT_Stream stream );
typedef FT_Error
(*FT_Face_GetAdvancesFunc)( FT_Face face,
FT_UInt first,
FT_UInt count,
FT_Int32 flags,
FT_Fixed* advances );
/**************************************************************************
*
* @struct:
* FT_Driver_ClassRec
*
* @description:
* The font driver class. This structure mostly contains pointers to
* driver methods.
*
* @fields:
* root ::
* The parent module.
*
* face_object_size ::
* The size of a face object in bytes.
*
* size_object_size ::
* The size of a size object in bytes.
*
* slot_object_size ::
* The size of a glyph object in bytes.
*
* init_face ::
* The format-specific face constructor.
*
* done_face ::
* The format-specific face destructor.
*
* init_size ::
* The format-specific size constructor.
*
* done_size ::
* The format-specific size destructor.
*
* init_slot ::
* The format-specific slot constructor.
*
* done_slot ::
* The format-specific slot destructor.
*
*
* load_glyph ::
* A function handle to load a glyph to a slot. This field is
* mandatory!
*
* get_kerning ::
* A function handle to return the unscaled kerning for a given pair of
* glyphs. Can be set to 0 if the format doesn't support kerning.
*
* attach_file ::
* This function handle is used to read additional data for a face from
* another file/stream. For example, this can be used to add data from
* AFM or PFM files on a Type 1 face, or a CIDMap on a CID-keyed face.
*
* get_advances ::
* A function handle used to return advance widths of 'count' glyphs
* (in font units), starting at 'first'. The 'vertical' flag must be
* set to get vertical advance heights. The 'advances' buffer is
* caller-allocated. The idea of this function is to be able to
* perform device-independent text layout without loading a single
* glyph image.
*
* request_size ::
* A handle to a function used to request the new character size. Can
* be set to 0 if the scaling done in the base layer suffices.
*
* select_size ::
* A handle to a function used to select a new fixed size. It is used
* only if @FT_FACE_FLAG_FIXED_SIZES is set. Can be set to 0 if the
* scaling done in the base layer suffices.
*
* @note:
* Most function pointers, with the exception of `load_glyph`, can be set
* to 0 to indicate a default behaviour.
*/
typedef struct FT_Driver_ClassRec_
{
FT_Module_Class root;
FT_Long face_object_size;
FT_Long size_object_size;
FT_Long slot_object_size;
FT_Face_InitFunc init_face;
FT_Face_DoneFunc done_face;
FT_Size_InitFunc init_size;
FT_Size_DoneFunc done_size;
FT_Slot_InitFunc init_slot;
FT_Slot_DoneFunc done_slot;
FT_Slot_LoadFunc load_glyph;
FT_Face_GetKerningFunc get_kerning;
FT_Face_AttachFunc attach_file;
FT_Face_GetAdvancesFunc get_advances;
/* since version 2.2 */
FT_Size_RequestFunc request_size;
FT_Size_SelectFunc select_size;
} FT_Driver_ClassRec, *FT_Driver_Class;
/**************************************************************************
*
* @macro:
* FT_DECLARE_DRIVER
*
* @description:
* Used to create a forward declaration of an FT_Driver_ClassRec struct
* instance.
*
* @macro:
* FT_DEFINE_DRIVER
*
* @description:
* Used to initialize an instance of FT_Driver_ClassRec struct.
*
* `ftinit.c` (ft_create_default_module_classes) already contains a
* mechanism to call these functions for the default modules described in
* `ftmodule.h`.
*
* The struct will be allocated in the global scope (or the scope where
* the macro is used).
*/
#define FT_DECLARE_DRIVER( class_ ) \
FT_CALLBACK_TABLE \
const FT_Driver_ClassRec class_;
#define FT_DEFINE_DRIVER( \
class_, \
flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_, \
face_object_size_, \
size_object_size_, \
slot_object_size_, \
init_face_, \
done_face_, \
init_size_, \
done_size_, \
init_slot_, \
done_slot_, \
load_glyph_, \
get_kerning_, \
attach_file_, \
get_advances_, \
request_size_, \
select_size_ ) \
FT_CALLBACK_TABLE_DEF \
const FT_Driver_ClassRec class_ = \
{ \
FT_DEFINE_ROOT_MODULE( flags_, \
size_, \
name_, \
version_, \
requires_, \
interface_, \
init_, \
done_, \
get_interface_ ) \
\
face_object_size_, \
size_object_size_, \
slot_object_size_, \
\
init_face_, \
done_face_, \
\
init_size_, \
done_size_, \
\
init_slot_, \
done_slot_, \
\
load_glyph_, \
\
get_kerning_, \
attach_file_, \
get_advances_, \
\
request_size_, \
select_size_ \
};
FT_END_HEADER
#endif /* FTDRV_H_ */
/* END */

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Example/include/freetype/internal/ftgloadr.h
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/****************************************************************************
*
* ftgloadr.h
*
* The FreeType glyph loader (specification).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTGLOADR_H_
#define FTGLOADR_H_
#include <freetype/freetype.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* @struct:
* FT_GlyphLoader
*
* @description:
* The glyph loader is an internal object used to load several glyphs
* together (for example, in the case of composites).
*/
typedef struct FT_SubGlyphRec_
{
FT_Int index;
FT_UShort flags;
FT_Int arg1;
FT_Int arg2;
FT_Matrix transform;
} FT_SubGlyphRec;
typedef struct FT_GlyphLoadRec_
{
FT_Outline outline; /* outline */
FT_Vector* extra_points; /* extra points table */
FT_Vector* extra_points2; /* second extra points table */
FT_UInt num_subglyphs; /* number of subglyphs */
FT_SubGlyph subglyphs; /* subglyphs */
} FT_GlyphLoadRec, *FT_GlyphLoad;
typedef struct FT_GlyphLoaderRec_
{
FT_Memory memory;
FT_UInt max_points;
FT_UInt max_contours;
FT_UInt max_subglyphs;
FT_Bool use_extra;
FT_GlyphLoadRec base;
FT_GlyphLoadRec current;
void* other; /* for possible future extension? */
} FT_GlyphLoaderRec, *FT_GlyphLoader;
/* create new empty glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_New( FT_Memory memory,
FT_GlyphLoader *aloader );
/* add an extra points table to a glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_CreateExtra( FT_GlyphLoader loader );
/* destroy a glyph loader */
FT_BASE( void )
FT_GlyphLoader_Done( FT_GlyphLoader loader );
/* reset a glyph loader (frees everything int it) */
FT_BASE( void )
FT_GlyphLoader_Reset( FT_GlyphLoader loader );
/* rewind a glyph loader */
FT_BASE( void )
FT_GlyphLoader_Rewind( FT_GlyphLoader loader );
/* check that there is enough space to add `n_points' and `n_contours' */
/* to the glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_CheckPoints( FT_GlyphLoader loader,
FT_UInt n_points,
FT_UInt n_contours );
#define FT_GLYPHLOADER_CHECK_P( _loader, _count ) \
( (_count) == 0 || \
( (FT_UInt)(_loader)->base.outline.n_points + \
(FT_UInt)(_loader)->current.outline.n_points + \
(FT_UInt)(_count) ) <= (_loader)->max_points )
#define FT_GLYPHLOADER_CHECK_C( _loader, _count ) \
( (_count) == 0 || \
( (FT_UInt)(_loader)->base.outline.n_contours + \
(FT_UInt)(_loader)->current.outline.n_contours + \
(FT_UInt)(_count) ) <= (_loader)->max_contours )
#define FT_GLYPHLOADER_CHECK_POINTS( _loader, _points, _contours ) \
( ( FT_GLYPHLOADER_CHECK_P( _loader, _points ) && \
FT_GLYPHLOADER_CHECK_C( _loader, _contours ) ) \
? 0 \
: FT_GlyphLoader_CheckPoints( (_loader), \
(FT_UInt)(_points), \
(FT_UInt)(_contours) ) )
/* check that there is enough space to add `n_subs' sub-glyphs to */
/* a glyph loader */
FT_BASE( FT_Error )
FT_GlyphLoader_CheckSubGlyphs( FT_GlyphLoader loader,
FT_UInt n_subs );
/* prepare a glyph loader, i.e. empty the current glyph */
FT_BASE( void )
FT_GlyphLoader_Prepare( FT_GlyphLoader loader );
/* add the current glyph to the base glyph */
FT_BASE( void )
FT_GlyphLoader_Add( FT_GlyphLoader loader );
FT_END_HEADER
#endif /* FTGLOADR_H_ */
/* END */

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Example/include/freetype/internal/fthash.h
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/****************************************************************************
*
* fthash.h
*
* Hashing functions (specification).
*
*/
/*
* Copyright 2000 Computing Research Labs, New Mexico State University
* Copyright 2001-2015
* Francesco Zappa Nardelli
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
* OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
* THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/**************************************************************************
*
* This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50
*
* taken from Mark Leisher's xmbdfed package
*
*/
#ifndef FTHASH_H_
#define FTHASH_H_
#include <freetype/freetype.h>
FT_BEGIN_HEADER
typedef union FT_Hashkey_
{
FT_Int num;
const char* str;
} FT_Hashkey;
typedef struct FT_HashnodeRec_
{
FT_Hashkey key;
size_t data;
} FT_HashnodeRec;
typedef struct FT_HashnodeRec_ *FT_Hashnode;
typedef FT_ULong
(*FT_Hash_LookupFunc)( FT_Hashkey* key );
typedef FT_Bool
(*FT_Hash_CompareFunc)( FT_Hashkey* a,
FT_Hashkey* b );
typedef struct FT_HashRec_
{
FT_UInt limit;
FT_UInt size;
FT_UInt used;
FT_Hash_LookupFunc lookup;
FT_Hash_CompareFunc compare;
FT_Hashnode* table;
} FT_HashRec;
typedef struct FT_HashRec_ *FT_Hash;
FT_Error
ft_hash_str_init( FT_Hash hash,
FT_Memory memory );
FT_Error
ft_hash_num_init( FT_Hash hash,
FT_Memory memory );
void
ft_hash_str_free( FT_Hash hash,
FT_Memory memory );
#define ft_hash_num_free ft_hash_str_free
FT_Error
ft_hash_str_insert( const char* key,
size_t data,
FT_Hash hash,
FT_Memory memory );
FT_Error
ft_hash_num_insert( FT_Int num,
size_t data,
FT_Hash hash,
FT_Memory memory );
size_t*
ft_hash_str_lookup( const char* key,
FT_Hash hash );
size_t*
ft_hash_num_lookup( FT_Int num,
FT_Hash hash );
FT_END_HEADER
#endif /* FTHASH_H_ */
/* END */

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Example/include/freetype/internal/ftmemory.h
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/****************************************************************************
*
* ftmemory.h
*
* The FreeType memory management macros (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMEMORY_H_
#define FTMEMORY_H_
#include <ft2build.h>
#include FT_CONFIG_CONFIG_H
#include <freetype/fttypes.h>
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* @macro:
* FT_SET_ERROR
*
* @description:
* This macro is used to set an implicit 'error' variable to a given
* expression's value (usually a function call), and convert it to a
* boolean which is set whenever the value is != 0.
*/
#undef FT_SET_ERROR
#define FT_SET_ERROR( expression ) \
( ( error = (expression) ) != 0 )
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** M E M O R Y ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* The calculation `NULL + n' is undefined in C. Even if the resulting */
/* pointer doesn't get dereferenced, this causes warnings with */
/* sanitizers. */
/* */
/* We thus provide a macro that should be used if `base' can be NULL. */
#define FT_OFFSET( base, count ) ( (base) ? (base) + (count) : NULL )
/*
* C++ refuses to handle statements like p = (void*)anything, with `p' a
* typed pointer. Since we don't have a `typeof' operator in standard C++,
* we have to use a template to emulate it.
*/
#ifdef __cplusplus
extern "C++"
{
template <typename T> inline T*
cplusplus_typeof( T*,
void *v )
{
return static_cast <T*> ( v );
}
}
#define FT_ASSIGNP( p, val ) (p) = cplusplus_typeof( (p), (val) )
#else
#define FT_ASSIGNP( p, val ) (p) = (val)
#endif
#ifdef FT_DEBUG_MEMORY
FT_BASE( const char* ) ft_debug_file_;
FT_BASE( long ) ft_debug_lineno_;
#define FT_DEBUG_INNER( exp ) ( ft_debug_file_ = __FILE__, \
ft_debug_lineno_ = __LINE__, \
(exp) )
#define FT_ASSIGNP_INNER( p, exp ) ( ft_debug_file_ = __FILE__, \
ft_debug_lineno_ = __LINE__, \
FT_ASSIGNP( p, exp ) )
#else /* !FT_DEBUG_MEMORY */
#define FT_DEBUG_INNER( exp ) (exp)
#define FT_ASSIGNP_INNER( p, exp ) FT_ASSIGNP( p, exp )
#endif /* !FT_DEBUG_MEMORY */
/*
* The allocation functions return a pointer, and the error code is written
* to through the `p_error' parameter.
*/
/* The `q' variants of the functions below (`q' for `quick') don't fill */
/* the allocated or reallocated memory with zero bytes. */
FT_BASE( FT_Pointer )
ft_mem_alloc( FT_Memory memory,
FT_Long size,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_qalloc( FT_Memory memory,
FT_Long size,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_realloc( FT_Memory memory,
FT_Long item_size,
FT_Long cur_count,
FT_Long new_count,
void* block,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_qrealloc( FT_Memory memory,
FT_Long item_size,
FT_Long cur_count,
FT_Long new_count,
void* block,
FT_Error *p_error );
FT_BASE( void )
ft_mem_free( FT_Memory memory,
const void* P );
/* The `Q' variants of the macros below (`Q' for `quick') don't fill */
/* the allocated or reallocated memory with zero bytes. */
#define FT_MEM_ALLOC( ptr, size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_alloc( memory, \
(FT_Long)(size), \
&error ) )
#define FT_MEM_FREE( ptr ) \
FT_BEGIN_STMNT \
FT_DEBUG_INNER( ft_mem_free( memory, (ptr) ) ); \
(ptr) = NULL; \
FT_END_STMNT
#define FT_MEM_NEW( ptr ) \
FT_MEM_ALLOC( ptr, sizeof ( *(ptr) ) )
#define FT_MEM_REALLOC( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
1, \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_MEM_QALLOC( ptr, size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qalloc( memory, \
(FT_Long)(size), \
&error ) )
#define FT_MEM_QNEW( ptr ) \
FT_MEM_QALLOC( ptr, sizeof ( *(ptr) ) )
#define FT_MEM_QREALLOC( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
1, \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_MEM_ALLOC_MULT( ptr, count, item_size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
(FT_Long)(item_size), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
(FT_Long)(itmsz), \
(FT_Long)(oldcnt), \
(FT_Long)(newcnt), \
(ptr), \
&error ) )
#define FT_MEM_QALLOC_MULT( ptr, count, item_size ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
(FT_Long)(item_size), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
(FT_Long)(itmsz), \
(FT_Long)(oldcnt), \
(FT_Long)(newcnt), \
(ptr), \
&error ) )
#define FT_MEM_SET_ERROR( cond ) ( (cond), error != 0 )
#define FT_MEM_SET( dest, byte, count ) \
ft_memset( dest, byte, (FT_Offset)(count) )
#define FT_MEM_COPY( dest, source, count ) \
ft_memcpy( dest, source, (FT_Offset)(count) )
#define FT_MEM_MOVE( dest, source, count ) \
ft_memmove( dest, source, (FT_Offset)(count) )
#define FT_MEM_ZERO( dest, count ) FT_MEM_SET( dest, 0, count )
#define FT_ZERO( p ) FT_MEM_ZERO( p, sizeof ( *(p) ) )
#define FT_ARRAY_ZERO( dest, count ) \
FT_MEM_ZERO( dest, \
(FT_Offset)(count) * sizeof ( *(dest) ) )
#define FT_ARRAY_COPY( dest, source, count ) \
FT_MEM_COPY( dest, \
source, \
(FT_Offset)(count) * sizeof ( *(dest) ) )
#define FT_ARRAY_MOVE( dest, source, count ) \
FT_MEM_MOVE( dest, \
source, \
(FT_Offset)(count) * sizeof ( *(dest) ) )
/*
* Return the maximum number of addressable elements in an array. We limit
* ourselves to INT_MAX, rather than UINT_MAX, to avoid any problems.
*/
#define FT_ARRAY_MAX( ptr ) ( FT_INT_MAX / sizeof ( *(ptr) ) )
#define FT_ARRAY_CHECK( ptr, count ) ( (count) <= FT_ARRAY_MAX( ptr ) )
/**************************************************************************
*
* The following functions macros expect that their pointer argument is
* _typed_ in order to automatically compute array element sizes.
*/
#define FT_MEM_NEW_ARRAY( ptr, count ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
sizeof ( *(ptr) ), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_RENEW_ARRAY( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_realloc( memory, \
sizeof ( *(ptr) ), \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_MEM_QNEW_ARRAY( ptr, count ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
sizeof ( *(ptr) ), \
0, \
(FT_Long)(count), \
NULL, \
&error ) )
#define FT_MEM_QRENEW_ARRAY( ptr, cursz, newsz ) \
FT_ASSIGNP_INNER( ptr, ft_mem_qrealloc( memory, \
sizeof ( *(ptr) ), \
(FT_Long)(cursz), \
(FT_Long)(newsz), \
(ptr), \
&error ) )
#define FT_ALLOC( ptr, size ) \
FT_MEM_SET_ERROR( FT_MEM_ALLOC( ptr, size ) )
#define FT_REALLOC( ptr, cursz, newsz ) \
FT_MEM_SET_ERROR( FT_MEM_REALLOC( ptr, cursz, newsz ) )
#define FT_ALLOC_MULT( ptr, count, item_size ) \
FT_MEM_SET_ERROR( FT_MEM_ALLOC_MULT( ptr, count, item_size ) )
#define FT_REALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_MEM_SET_ERROR( FT_MEM_REALLOC_MULT( ptr, oldcnt, \
newcnt, itmsz ) )
#define FT_QALLOC( ptr, size ) \
FT_MEM_SET_ERROR( FT_MEM_QALLOC( ptr, size ) )
#define FT_QREALLOC( ptr, cursz, newsz ) \
FT_MEM_SET_ERROR( FT_MEM_QREALLOC( ptr, cursz, newsz ) )
#define FT_QALLOC_MULT( ptr, count, item_size ) \
FT_MEM_SET_ERROR( FT_MEM_QALLOC_MULT( ptr, count, item_size ) )
#define FT_QREALLOC_MULT( ptr, oldcnt, newcnt, itmsz ) \
FT_MEM_SET_ERROR( FT_MEM_QREALLOC_MULT( ptr, oldcnt, \
newcnt, itmsz ) )
#define FT_FREE( ptr ) FT_MEM_FREE( ptr )
#define FT_NEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_NEW( ptr ) )
#define FT_NEW_ARRAY( ptr, count ) \
FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) )
#define FT_RENEW_ARRAY( ptr, curcnt, newcnt ) \
FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) )
#define FT_QNEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) )
#define FT_QNEW_ARRAY( ptr, count ) \
FT_MEM_SET_ERROR( FT_MEM_QNEW_ARRAY( ptr, count ) )
#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \
FT_MEM_SET_ERROR( FT_MEM_QRENEW_ARRAY( ptr, curcnt, newcnt ) )
FT_BASE( FT_Pointer )
ft_mem_strdup( FT_Memory memory,
const char* str,
FT_Error *p_error );
FT_BASE( FT_Pointer )
ft_mem_dup( FT_Memory memory,
const void* address,
FT_ULong size,
FT_Error *p_error );
#define FT_MEM_STRDUP( dst, str ) \
(dst) = (char*)ft_mem_strdup( memory, (const char*)(str), &error )
#define FT_STRDUP( dst, str ) \
FT_MEM_SET_ERROR( FT_MEM_STRDUP( dst, str ) )
#define FT_MEM_DUP( dst, address, size ) \
(dst) = ft_mem_dup( memory, (address), (FT_ULong)(size), &error )
#define FT_DUP( dst, address, size ) \
FT_MEM_SET_ERROR( FT_MEM_DUP( dst, address, size ) )
/* Return >= 1 if a truncation occurs. */
/* Return 0 if the source string fits the buffer. */
/* This is *not* the same as strlcpy(). */
FT_BASE( FT_Int )
ft_mem_strcpyn( char* dst,
const char* src,
FT_ULong size );
#define FT_STRCPYN( dst, src, size ) \
ft_mem_strcpyn( (char*)dst, (const char*)(src), (FT_ULong)(size) )
FT_END_HEADER
#endif /* FTMEMORY_H_ */
/* END */

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Example/include/freetype/internal/ftmmtypes.h
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/****************************************************************************
*
* ftmmtypes.h
*
* OpenType Variations type definitions for internal use
* with the multi-masters service (specification).
*
* Copyright (C) 2022-2023 by
* David Turner, Robert Wilhelm, Werner Lemberg, George Williams, and
* Dominik Röttsches.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTMMTYPES_H_
#define FTMMTYPES_H_
FT_BEGIN_HEADER
typedef FT_Int32 FT_ItemVarDelta;
typedef struct GX_ItemVarDataRec_
{
FT_UInt itemCount; /* Number of delta sets per item. */
FT_UInt regionIdxCount; /* Number of region indices. */
FT_UInt* regionIndices; /* Array of `regionCount` indices; */
/* these index `varRegionList`. */
FT_Byte* deltaSet; /* Array of `itemCount` deltas; */
/* use `innerIndex` for this array. */
FT_UShort wordDeltaCount; /* Number of the first 32-bit ints */
/* or 16-bit ints of `deltaSet` */
/* depending on `longWords`. */
FT_Bool longWords; /* If true, `deltaSet` is a 32-bit */
/* array followed by a 16-bit */
/* array, otherwise a 16-bit array */
/* followed by an 8-bit array. */
} GX_ItemVarDataRec, *GX_ItemVarData;
/* contribution of one axis to a region */
typedef struct GX_AxisCoordsRec_
{
FT_Fixed startCoord;
FT_Fixed peakCoord; /* zero means no effect (factor = 1) */
FT_Fixed endCoord;
} GX_AxisCoordsRec, *GX_AxisCoords;
typedef struct GX_VarRegionRec_
{
GX_AxisCoords axisList; /* array of axisCount records */
} GX_VarRegionRec, *GX_VarRegion;
/* item variation store */
typedef struct GX_ItemVarStoreRec_
{
FT_UInt dataCount;
GX_ItemVarData varData; /* array of dataCount records; */
/* use `outerIndex' for this array */
FT_UShort axisCount;
FT_UInt regionCount; /* total number of regions defined */
GX_VarRegion varRegionList;
} GX_ItemVarStoreRec, *GX_ItemVarStore;
typedef struct GX_DeltaSetIdxMapRec_
{
FT_ULong mapCount;
FT_UInt* outerIndex; /* indices to item var data */
FT_UInt* innerIndex; /* indices to delta set */
} GX_DeltaSetIdxMapRec, *GX_DeltaSetIdxMap;
FT_END_HEADER
#endif /* FTMMTYPES_H_ */
/* END */

1238
Example/include/freetype/internal/ftobjs.h
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Example/include/freetype/internal/ftpsprop.h
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/****************************************************************************
*
* ftpsprop.h
*
* Get and set properties of PostScript drivers (specification).
*
* Copyright (C) 2017-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTPSPROP_H_
#define FTPSPROP_H_
#include <freetype/freetype.h>
FT_BEGIN_HEADER
FT_BASE_CALLBACK( FT_Error )
ps_property_set( FT_Module module, /* PS_Driver */
const char* property_name,
const void* value,
FT_Bool value_is_string );
FT_BASE_CALLBACK( FT_Error )
ps_property_get( FT_Module module, /* PS_Driver */
const char* property_name,
void* value );
FT_END_HEADER
#endif /* FTPSPROP_H_ */
/* END */

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Example/include/freetype/internal/ftrfork.h
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/****************************************************************************
*
* ftrfork.h
*
* Embedded resource forks accessor (specification).
*
* Copyright (C) 2004-2023 by
* Masatake YAMATO and Redhat K.K.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
* Development of the code in this file is support of
* Information-technology Promotion Agency, Japan.
*/
#ifndef FTRFORK_H_
#define FTRFORK_H_
#include <freetype/internal/ftobjs.h>
FT_BEGIN_HEADER
/* Number of guessing rules supported in `FT_Raccess_Guess'. */
/* Don't forget to increment the number if you add a new guessing rule. */
#define FT_RACCESS_N_RULES 9
/* A structure to describe a reference in a resource by its resource ID */
/* and internal offset. The `POST' resource expects to be concatenated */
/* by the order of resource IDs instead of its appearance in the file. */
typedef struct FT_RFork_Ref_
{
FT_Short res_id;
FT_Long offset;
} FT_RFork_Ref;
#ifdef FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK
typedef FT_Error
(*ft_raccess_guess_func)( FT_Library library,
FT_Stream stream,
char *base_file_name,
char **result_file_name,
FT_Long *result_offset );
typedef enum FT_RFork_Rule_ {
FT_RFork_Rule_invalid = -2,
FT_RFork_Rule_uknown, /* -1 */
FT_RFork_Rule_apple_double,
FT_RFork_Rule_apple_single,
FT_RFork_Rule_darwin_ufs_export,
FT_RFork_Rule_darwin_newvfs,
FT_RFork_Rule_darwin_hfsplus,
FT_RFork_Rule_vfat,
FT_RFork_Rule_linux_cap,
FT_RFork_Rule_linux_double,
FT_RFork_Rule_linux_netatalk
} FT_RFork_Rule;
/* For fast translation between rule index and rule type,
* the macros FT_RFORK_xxx should be kept consistent with the
* raccess_guess_funcs table
*/
typedef struct ft_raccess_guess_rec_ {
ft_raccess_guess_func func;
FT_RFork_Rule type;
} ft_raccess_guess_rec;
#define CONST_FT_RFORK_RULE_ARRAY_BEGIN( name, type ) \
static const type name[] = {
#define CONST_FT_RFORK_RULE_ARRAY_ENTRY( func_suffix, type_suffix ) \
{ raccess_guess_ ## func_suffix, \
FT_RFork_Rule_ ## type_suffix },
/* this array is a storage, thus a final `;' is needed */
#define CONST_FT_RFORK_RULE_ARRAY_END };
#endif /* FT_CONFIG_OPTION_GUESSING_EMBEDDED_RFORK */
/**************************************************************************
*
* @function:
* FT_Raccess_Guess
*
* @description:
* Guess a file name and offset where the actual resource fork is stored.
* The macro FT_RACCESS_N_RULES holds the number of guessing rules; the
* guessed result for the Nth rule is represented as a triplet: a new
* file name (new_names[N]), a file offset (offsets[N]), and an error
* code (errors[N]).
*
* @input:
* library ::
* A FreeType library instance.
*
* stream ::
* A file stream containing the resource fork.
*
* base_name ::
* The (base) file name of the resource fork used for some guessing
* rules.
*
* @output:
* new_names ::
* An array of guessed file names in which the resource forks may
* exist. If 'new_names[N]' is `NULL`, the guessed file name is equal
* to `base_name`.
*
* offsets ::
* An array of guessed file offsets. 'offsets[N]' holds the file
* offset of the possible start of the resource fork in file
* 'new_names[N]'.
*
* errors ::
* An array of FreeType error codes. 'errors[N]' is the error code of
* Nth guessing rule function. If 'errors[N]' is not FT_Err_Ok,
* 'new_names[N]' and 'offsets[N]' are meaningless.
*/
FT_BASE( void )
FT_Raccess_Guess( FT_Library library,
FT_Stream stream,
char* base_name,
char** new_names,
FT_Long* offsets,
FT_Error* errors );
/**************************************************************************
*
* @function:
* FT_Raccess_Get_HeaderInfo
*
* @description:
* Get the information from the header of resource fork. The information
* includes the file offset where the resource map starts, and the file
* offset where the resource data starts. `FT_Raccess_Get_DataOffsets`
* requires these two data.
*
* @input:
* library ::
* A FreeType library instance.
*
* stream ::
* A file stream containing the resource fork.
*
* rfork_offset ::
* The file offset where the resource fork starts.
*
* @output:
* map_offset ::
* The file offset where the resource map starts.
*
* rdata_pos ::
* The file offset where the resource data starts.
*
* @return:
* FreeType error code. FT_Err_Ok means success.
*/
FT_BASE( FT_Error )
FT_Raccess_Get_HeaderInfo( FT_Library library,
FT_Stream stream,
FT_Long rfork_offset,
FT_Long *map_offset,
FT_Long *rdata_pos );
/**************************************************************************
*
* @function:
* FT_Raccess_Get_DataOffsets
*
* @description:
* Get the data offsets for a tag in a resource fork. Offsets are stored
* in an array because, in some cases, resources in a resource fork have
* the same tag.
*
* @input:
* library ::
* A FreeType library instance.
*
* stream ::
* A file stream containing the resource fork.
*
* map_offset ::
* The file offset where the resource map starts.
*
* rdata_pos ::
* The file offset where the resource data starts.
*
* tag ::
* The resource tag.
*
* sort_by_res_id ::
* A Boolean to sort the fragmented resource by their ids. The
* fragmented resources for 'POST' resource should be sorted to restore
* Type1 font properly. For 'sfnt' resources, sorting may induce a
* different order of the faces in comparison to that by QuickDraw API.
*
* @output:
* offsets ::
* The stream offsets for the resource data specified by 'tag'. This
* array is allocated by the function, so you have to call @ft_mem_free
* after use.
*
* count ::
* The length of offsets array.
*
* @return:
* FreeType error code. FT_Err_Ok means success.
*
* @note:
* Normally you should use `FT_Raccess_Get_HeaderInfo` to get the value
* for `map_offset` and `rdata_pos`.
*/
FT_BASE( FT_Error )
FT_Raccess_Get_DataOffsets( FT_Library library,
FT_Stream stream,
FT_Long map_offset,
FT_Long rdata_pos,
FT_Long tag,
FT_Bool sort_by_res_id,
FT_Long **offsets,
FT_Long *count );
FT_END_HEADER
#endif /* FTRFORK_H_ */
/* END */

495
Example/include/freetype/internal/ftserv.h
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/****************************************************************************
*
* ftserv.h
*
* The FreeType services (specification only).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/**************************************************************************
*
* Each module can export one or more 'services'. Each service is
* identified by a constant string and modeled by a pointer; the latter
* generally corresponds to a structure containing function pointers.
*
* Note that a service's data cannot be a mere function pointer because in
* C it is possible that function pointers might be implemented differently
* than data pointers (e.g. 48 bits instead of 32).
*
*/
#ifndef FTSERV_H_
#define FTSERV_H_
#include "compiler-macros.h"
FT_BEGIN_HEADER
/**************************************************************************
*
* @macro:
* FT_FACE_FIND_SERVICE
*
* @description:
* This macro is used to look up a service from a face's driver module.
*
* @input:
* face ::
* The source face handle.
*
* id ::
* A string describing the service as defined in the service's header
* files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
* 'multi-masters'). It is automatically prefixed with
* `FT_SERVICE_ID_`.
*
* @output:
* ptr ::
* A variable that receives the service pointer. Will be `NULL` if not
* found.
*/
#ifdef __cplusplus
#define FT_FACE_FIND_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_ = NULL; \
FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \
\
\
if ( module->clazz->get_interface ) \
_tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \
*_pptr_ = _tmp_; \
FT_END_STMNT
#else /* !C++ */
#define FT_FACE_FIND_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_ = NULL; \
\
if ( module->clazz->get_interface ) \
_tmp_ = module->clazz->get_interface( module, FT_SERVICE_ID_ ## id ); \
ptr = _tmp_; \
FT_END_STMNT
#endif /* !C++ */
/**************************************************************************
*
* @macro:
* FT_FACE_FIND_GLOBAL_SERVICE
*
* @description:
* This macro is used to look up a service from all modules.
*
* @input:
* face ::
* The source face handle.
*
* id ::
* A string describing the service as defined in the service's header
* files (e.g. FT_SERVICE_ID_MULTI_MASTERS which expands to
* 'multi-masters'). It is automatically prefixed with
* `FT_SERVICE_ID_`.
*
* @output:
* ptr ::
* A variable that receives the service pointer. Will be `NULL` if not
* found.
*/
#ifdef __cplusplus
#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_; \
FT_Pointer* _pptr_ = (FT_Pointer*)&(ptr); \
\
\
_tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id, 1 ); \
*_pptr_ = _tmp_; \
FT_END_STMNT
#else /* !C++ */
#define FT_FACE_FIND_GLOBAL_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Module module = FT_MODULE( FT_FACE( face )->driver ); \
FT_Pointer _tmp_; \
\
\
_tmp_ = ft_module_get_service( module, FT_SERVICE_ID_ ## id, 1 ); \
ptr = _tmp_; \
FT_END_STMNT
#endif /* !C++ */
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** S E R V I C E D E S C R I P T O R S *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*
* The following structure is used to _describe_ a given service to the
* library. This is useful to build simple static service lists.
*/
typedef struct FT_ServiceDescRec_
{
const char* serv_id; /* service name */
const void* serv_data; /* service pointer/data */
} FT_ServiceDescRec;
typedef const FT_ServiceDescRec* FT_ServiceDesc;
/**************************************************************************
*
* @macro:
* FT_DEFINE_SERVICEDESCREC1
* FT_DEFINE_SERVICEDESCREC2
* FT_DEFINE_SERVICEDESCREC3
* FT_DEFINE_SERVICEDESCREC4
* FT_DEFINE_SERVICEDESCREC5
* FT_DEFINE_SERVICEDESCREC6
* FT_DEFINE_SERVICEDESCREC7
* FT_DEFINE_SERVICEDESCREC8
* FT_DEFINE_SERVICEDESCREC9
* FT_DEFINE_SERVICEDESCREC10
*
* @description:
* Used to initialize an array of FT_ServiceDescRec structures.
*
* The array will be allocated in the global scope (or the scope where
* the macro is used).
*/
#define FT_DEFINE_SERVICEDESCREC1( class_, \
serv_id_1, serv_data_1 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC2( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC3( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC4( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC5( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC6( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC7( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC8( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC9( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8, \
serv_id_9, serv_data_9 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ serv_id_9, serv_data_9 }, \
{ NULL, NULL } \
};
#define FT_DEFINE_SERVICEDESCREC10( class_, \
serv_id_1, serv_data_1, \
serv_id_2, serv_data_2, \
serv_id_3, serv_data_3, \
serv_id_4, serv_data_4, \
serv_id_5, serv_data_5, \
serv_id_6, serv_data_6, \
serv_id_7, serv_data_7, \
serv_id_8, serv_data_8, \
serv_id_9, serv_data_9, \
serv_id_10, serv_data_10 ) \
static const FT_ServiceDescRec class_[] = \
{ \
{ serv_id_1, serv_data_1 }, \
{ serv_id_2, serv_data_2 }, \
{ serv_id_3, serv_data_3 }, \
{ serv_id_4, serv_data_4 }, \
{ serv_id_5, serv_data_5 }, \
{ serv_id_6, serv_data_6 }, \
{ serv_id_7, serv_data_7 }, \
{ serv_id_8, serv_data_8 }, \
{ serv_id_9, serv_data_9 }, \
{ serv_id_10, serv_data_10 }, \
{ NULL, NULL } \
};
/*
* Parse a list of FT_ServiceDescRec descriptors and look for a specific
* service by ID. Note that the last element in the array must be { NULL,
* NULL }, and that the function should return NULL if the service isn't
* available.
*
* This function can be used by modules to implement their `get_service'
* method.
*/
FT_BASE( FT_Pointer )
ft_service_list_lookup( FT_ServiceDesc service_descriptors,
const char* service_id );
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** S E R V I C E S C A C H E *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/*
* This structure is used to store a cache for several frequently used
* services. It is the type of `face->internal->services'. You should
* only use FT_FACE_LOOKUP_SERVICE to access it.
*
* All fields should have the type FT_Pointer to relax compilation
* dependencies. We assume the developer isn't completely stupid.
*
* Each field must be named `service_XXXX' where `XXX' corresponds to the
* correct FT_SERVICE_ID_XXXX macro. See the definition of
* FT_FACE_LOOKUP_SERVICE below how this is implemented.
*
*/
typedef struct FT_ServiceCacheRec_
{
FT_Pointer service_POSTSCRIPT_FONT_NAME;
FT_Pointer service_MULTI_MASTERS;
FT_Pointer service_METRICS_VARIATIONS;
FT_Pointer service_GLYPH_DICT;
FT_Pointer service_PFR_METRICS;
FT_Pointer service_WINFNT;
} FT_ServiceCacheRec, *FT_ServiceCache;
/*
* A magic number used within the services cache.
*/
/* ensure that value `1' has the same width as a pointer */
#define FT_SERVICE_UNAVAILABLE ((FT_Pointer)~(FT_PtrDist)1)
/**************************************************************************
*
* @macro:
* FT_FACE_LOOKUP_SERVICE
*
* @description:
* This macro is used to look up a service from a face's driver module
* using its cache.
*
* @input:
* face ::
* The source face handle containing the cache.
*
* field ::
* The field name in the cache.
*
* id ::
* The service ID.
*
* @output:
* ptr ::
* A variable receiving the service data. `NULL` if not available.
*/
#ifdef __cplusplus
#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Pointer svc; \
FT_Pointer* Pptr = (FT_Pointer*)&(ptr); \
\
\
svc = FT_FACE( face )->internal->services. service_ ## id; \
if ( svc == FT_SERVICE_UNAVAILABLE ) \
svc = NULL; \
else if ( svc == NULL ) \
{ \
FT_FACE_FIND_SERVICE( face, svc, id ); \
\
FT_FACE( face )->internal->services. service_ ## id = \
(FT_Pointer)( svc != NULL ? svc \
: FT_SERVICE_UNAVAILABLE ); \
} \
*Pptr = svc; \
FT_END_STMNT
#else /* !C++ */
#define FT_FACE_LOOKUP_SERVICE( face, ptr, id ) \
FT_BEGIN_STMNT \
FT_Pointer svc; \
\
\
svc = FT_FACE( face )->internal->services. service_ ## id; \
if ( svc == FT_SERVICE_UNAVAILABLE ) \
svc = NULL; \
else if ( svc == NULL ) \
{ \
FT_FACE_FIND_SERVICE( face, svc, id ); \
\
FT_FACE( face )->internal->services. service_ ## id = \
(FT_Pointer)( svc != NULL ? svc \
: FT_SERVICE_UNAVAILABLE ); \
} \
ptr = svc; \
FT_END_STMNT
#endif /* !C++ */
/*
* A macro used to define new service structure types.
*/
#define FT_DEFINE_SERVICE( name ) \
typedef struct FT_Service_ ## name ## Rec_ \
FT_Service_ ## name ## Rec ; \
typedef struct FT_Service_ ## name ## Rec_ \
const * FT_Service_ ## name ; \
struct FT_Service_ ## name ## Rec_
/* */
FT_END_HEADER
#endif /* FTSERV_H_ */
/* END */

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Example/include/freetype/internal/ftstream.h
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@ -1,570 +0,0 @@
/****************************************************************************
*
* ftstream.h
*
* Stream handling (specification).
*
* Copyright (C) 1996-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTSTREAM_H_
#define FTSTREAM_H_
#include <ft2build.h>
#include <freetype/ftsystem.h>
#include <freetype/internal/ftobjs.h>
FT_BEGIN_HEADER
/* format of an 8-bit frame_op value: */
/* */
/* bit 76543210 */
/* xxxxxxes */
/* */
/* s is set to 1 if the value is signed. */
/* e is set to 1 if the value is little-endian. */
/* xxx is a command. */
#define FT_FRAME_OP_SHIFT 2
#define FT_FRAME_OP_SIGNED 1
#define FT_FRAME_OP_LITTLE 2
#define FT_FRAME_OP_COMMAND( x ) ( x >> FT_FRAME_OP_SHIFT )
#define FT_MAKE_FRAME_OP( command, little, sign ) \
( ( command << FT_FRAME_OP_SHIFT ) | ( little << 1 ) | sign )
#define FT_FRAME_OP_END 0
#define FT_FRAME_OP_START 1 /* start a new frame */
#define FT_FRAME_OP_BYTE 2 /* read 1-byte value */
#define FT_FRAME_OP_SHORT 3 /* read 2-byte value */
#define FT_FRAME_OP_LONG 4 /* read 4-byte value */
#define FT_FRAME_OP_OFF3 5 /* read 3-byte value */
#define FT_FRAME_OP_BYTES 6 /* read a bytes sequence */
typedef enum FT_Frame_Op_
{
ft_frame_end = 0,
ft_frame_start = FT_MAKE_FRAME_OP( FT_FRAME_OP_START, 0, 0 ),
ft_frame_byte = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 0 ),
ft_frame_schar = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTE, 0, 1 ),
ft_frame_ushort_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 0 ),
ft_frame_short_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 0, 1 ),
ft_frame_ushort_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 0 ),
ft_frame_short_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_SHORT, 1, 1 ),
ft_frame_ulong_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 0 ),
ft_frame_long_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 0, 1 ),
ft_frame_ulong_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 0 ),
ft_frame_long_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_LONG, 1, 1 ),
ft_frame_uoff3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 0 ),
ft_frame_off3_be = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 0, 1 ),
ft_frame_uoff3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 0 ),
ft_frame_off3_le = FT_MAKE_FRAME_OP( FT_FRAME_OP_OFF3, 1, 1 ),
ft_frame_bytes = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 0 ),
ft_frame_skip = FT_MAKE_FRAME_OP( FT_FRAME_OP_BYTES, 0, 1 )
} FT_Frame_Op;
typedef struct FT_Frame_Field_
{
FT_Byte value;
FT_Byte size;
FT_UShort offset;
} FT_Frame_Field;
/* Construct an FT_Frame_Field out of a structure type and a field name. */
/* The structure type must be set in the FT_STRUCTURE macro before */
/* calling the FT_FRAME_START() macro. */
/* */
#define FT_FIELD_SIZE( f ) \
(FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f )
#define FT_FIELD_SIZE_DELTA( f ) \
(FT_Byte)sizeof ( ((FT_STRUCTURE*)0)->f[0] )
#define FT_FIELD_OFFSET( f ) \
(FT_UShort)( offsetof( FT_STRUCTURE, f ) )
#define FT_FRAME_FIELD( frame_op, field ) \
{ \
frame_op, \
FT_FIELD_SIZE( field ), \
FT_FIELD_OFFSET( field ) \
}
#define FT_MAKE_EMPTY_FIELD( frame_op ) { frame_op, 0, 0 }
#define FT_FRAME_START( size ) { ft_frame_start, 0, size }
#define FT_FRAME_END { ft_frame_end, 0, 0 }
#define FT_FRAME_LONG( f ) FT_FRAME_FIELD( ft_frame_long_be, f )
#define FT_FRAME_ULONG( f ) FT_FRAME_FIELD( ft_frame_ulong_be, f )
#define FT_FRAME_SHORT( f ) FT_FRAME_FIELD( ft_frame_short_be, f )
#define FT_FRAME_USHORT( f ) FT_FRAME_FIELD( ft_frame_ushort_be, f )
#define FT_FRAME_OFF3( f ) FT_FRAME_FIELD( ft_frame_off3_be, f )
#define FT_FRAME_UOFF3( f ) FT_FRAME_FIELD( ft_frame_uoff3_be, f )
#define FT_FRAME_BYTE( f ) FT_FRAME_FIELD( ft_frame_byte, f )
#define FT_FRAME_CHAR( f ) FT_FRAME_FIELD( ft_frame_schar, f )
#define FT_FRAME_LONG_LE( f ) FT_FRAME_FIELD( ft_frame_long_le, f )
#define FT_FRAME_ULONG_LE( f ) FT_FRAME_FIELD( ft_frame_ulong_le, f )
#define FT_FRAME_SHORT_LE( f ) FT_FRAME_FIELD( ft_frame_short_le, f )
#define FT_FRAME_USHORT_LE( f ) FT_FRAME_FIELD( ft_frame_ushort_le, f )
#define FT_FRAME_OFF3_LE( f ) FT_FRAME_FIELD( ft_frame_off3_le, f )
#define FT_FRAME_UOFF3_LE( f ) FT_FRAME_FIELD( ft_frame_uoff3_le, f )
#define FT_FRAME_SKIP_LONG { ft_frame_long_be, 0, 0 }
#define FT_FRAME_SKIP_SHORT { ft_frame_short_be, 0, 0 }
#define FT_FRAME_SKIP_BYTE { ft_frame_byte, 0, 0 }
#define FT_FRAME_BYTES( field, count ) \
{ \
ft_frame_bytes, \
count, \
FT_FIELD_OFFSET( field ) \
}
#define FT_FRAME_SKIP_BYTES( count ) { ft_frame_skip, count, 0 }
/**************************************************************************
*
* Integer extraction macros -- the 'buffer' parameter must ALWAYS be of
* type 'char*' or equivalent (1-byte elements).
*/
#define FT_BYTE_( p, i ) ( ((const FT_Byte*)(p))[(i)] )
#define FT_INT16( x ) ( (FT_Int16)(x) )
#define FT_UINT16( x ) ( (FT_UInt16)(x) )
#define FT_INT32( x ) ( (FT_Int32)(x) )
#define FT_UINT32( x ) ( (FT_UInt32)(x) )
#define FT_BYTE_U16( p, i, s ) ( FT_UINT16( FT_BYTE_( p, i ) ) << (s) )
#define FT_BYTE_U32( p, i, s ) ( FT_UINT32( FT_BYTE_( p, i ) ) << (s) )
/*
* function acts on increases does range for emits
* pointer checking frames error
* -------------------------------------------------------------------
* FT_PEEK_XXX buffer pointer no no no no
* FT_NEXT_XXX buffer pointer yes no no no
* FT_GET_XXX stream->cursor yes yes yes no
* FT_READ_XXX stream->pos yes yes no yes
*/
/*
* `FT_PEEK_XXX' are generic macros to get data from a buffer position. No
* safety checks are performed.
*/
#define FT_PEEK_SHORT( p ) FT_INT16( FT_BYTE_U16( p, 0, 8 ) | \
FT_BYTE_U16( p, 1, 0 ) )
#define FT_PEEK_USHORT( p ) FT_UINT16( FT_BYTE_U16( p, 0, 8 ) | \
FT_BYTE_U16( p, 1, 0 ) )
#define FT_PEEK_LONG( p ) FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 2, 8 ) | \
FT_BYTE_U32( p, 3, 0 ) )
#define FT_PEEK_ULONG( p ) FT_UINT32( FT_BYTE_U32( p, 0, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 2, 8 ) | \
FT_BYTE_U32( p, 3, 0 ) )
#define FT_PEEK_OFF3( p ) ( FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 2, 8 ) ) >> 8 )
#define FT_PEEK_UOFF3( p ) FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 2, 0 ) )
#define FT_PEEK_SHORT_LE( p ) FT_INT16( FT_BYTE_U16( p, 1, 8 ) | \
FT_BYTE_U16( p, 0, 0 ) )
#define FT_PEEK_USHORT_LE( p ) FT_UINT16( FT_BYTE_U16( p, 1, 8 ) | \
FT_BYTE_U16( p, 0, 0 ) )
#define FT_PEEK_LONG_LE( p ) FT_INT32( FT_BYTE_U32( p, 3, 24 ) | \
FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
#define FT_PEEK_ULONG_LE( p ) FT_UINT32( FT_BYTE_U32( p, 3, 24 ) | \
FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
#define FT_PEEK_OFF3_LE( p ) ( FT_INT32( FT_BYTE_U32( p, 2, 24 ) | \
FT_BYTE_U32( p, 1, 16 ) | \
FT_BYTE_U32( p, 0, 8 ) ) >> 8 )
#define FT_PEEK_UOFF3_LE( p ) FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
/*
* `FT_NEXT_XXX' are generic macros to get data from a buffer position
* which is then increased appropriately. No safety checks are performed.
*/
#define FT_NEXT_CHAR( buffer ) \
( (signed char)*buffer++ )
#define FT_NEXT_BYTE( buffer ) \
( (unsigned char)*buffer++ )
#define FT_NEXT_SHORT( buffer ) \
( buffer += 2, FT_PEEK_SHORT( buffer - 2 ) )
#define FT_NEXT_USHORT( buffer ) \
( buffer += 2, FT_PEEK_USHORT( buffer - 2 ) )
#define FT_NEXT_OFF3( buffer ) \
( buffer += 3, FT_PEEK_OFF3( buffer - 3 ) )
#define FT_NEXT_UOFF3( buffer ) \
( buffer += 3, FT_PEEK_UOFF3( buffer - 3 ) )
#define FT_NEXT_LONG( buffer ) \
( buffer += 4, FT_PEEK_LONG( buffer - 4 ) )
#define FT_NEXT_ULONG( buffer ) \
( buffer += 4, FT_PEEK_ULONG( buffer - 4 ) )
#define FT_NEXT_SHORT_LE( buffer ) \
( buffer += 2, FT_PEEK_SHORT_LE( buffer - 2 ) )
#define FT_NEXT_USHORT_LE( buffer ) \
( buffer += 2, FT_PEEK_USHORT_LE( buffer - 2 ) )
#define FT_NEXT_OFF3_LE( buffer ) \
( buffer += 3, FT_PEEK_OFF3_LE( buffer - 3 ) )
#define FT_NEXT_UOFF3_LE( buffer ) \
( buffer += 3, FT_PEEK_UOFF3_LE( buffer - 3 ) )
#define FT_NEXT_LONG_LE( buffer ) \
( buffer += 4, FT_PEEK_LONG_LE( buffer - 4 ) )
#define FT_NEXT_ULONG_LE( buffer ) \
( buffer += 4, FT_PEEK_ULONG_LE( buffer - 4 ) )
/**************************************************************************
*
* The `FT_GET_XXX` macros use an implicit 'stream' variable.
*
* Note that a call to `FT_STREAM_SEEK` or `FT_STREAM_POS` has **no**
* effect on `FT_GET_XXX`! They operate on `stream->pos`, while
* `FT_GET_XXX` use `stream->cursor`.
*/
#if 0
#define FT_GET_MACRO( type ) FT_NEXT_ ## type ( stream->cursor )
#define FT_GET_CHAR() FT_GET_MACRO( CHAR )
#define FT_GET_BYTE() FT_GET_MACRO( BYTE )
#define FT_GET_SHORT() FT_GET_MACRO( SHORT )
#define FT_GET_USHORT() FT_GET_MACRO( USHORT )
#define FT_GET_OFF3() FT_GET_MACRO( OFF3 )
#define FT_GET_UOFF3() FT_GET_MACRO( UOFF3 )
#define FT_GET_LONG() FT_GET_MACRO( LONG )
#define FT_GET_ULONG() FT_GET_MACRO( ULONG )
#define FT_GET_TAG4() FT_GET_MACRO( ULONG )
#define FT_GET_SHORT_LE() FT_GET_MACRO( SHORT_LE )
#define FT_GET_USHORT_LE() FT_GET_MACRO( USHORT_LE )
#define FT_GET_LONG_LE() FT_GET_MACRO( LONG_LE )
#define FT_GET_ULONG_LE() FT_GET_MACRO( ULONG_LE )
#else
#define FT_GET_MACRO( func, type ) ( (type)func( stream ) )
#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetByte, FT_Char )
#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetByte, FT_Byte )
#define FT_GET_SHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_Int16 )
#define FT_GET_USHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_UInt16 )
#define FT_GET_UOFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_UInt32 )
#define FT_GET_LONG() FT_GET_MACRO( FT_Stream_GetULong, FT_Int32 )
#define FT_GET_ULONG() FT_GET_MACRO( FT_Stream_GetULong, FT_UInt32 )
#define FT_GET_TAG4() FT_GET_MACRO( FT_Stream_GetULong, FT_UInt32 )
#define FT_GET_SHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_Int16 )
#define FT_GET_USHORT_LE() FT_GET_MACRO( FT_Stream_GetUShortLE, FT_UInt16 )
#define FT_GET_LONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_Int32 )
#define FT_GET_ULONG_LE() FT_GET_MACRO( FT_Stream_GetULongLE, FT_UInt32 )
#endif
#define FT_READ_MACRO( func, type, var ) \
( var = (type)func( stream, &error ), \
error != FT_Err_Ok )
/*
* The `FT_READ_XXX' macros use implicit `stream' and `error' variables.
*
* `FT_READ_XXX' can be controlled with `FT_STREAM_SEEK' and
* `FT_STREAM_POS'. They use the full machinery to check whether a read is
* valid.
*/
#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Byte, var )
#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Char, var )
#define FT_READ_SHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_Int16, var )
#define FT_READ_USHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_UInt16, var )
#define FT_READ_UOFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_UInt32, var )
#define FT_READ_LONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_Int32, var )
#define FT_READ_ULONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_UInt32, var )
#define FT_READ_SHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_Int16, var )
#define FT_READ_USHORT_LE( var ) FT_READ_MACRO( FT_Stream_ReadUShortLE, FT_UInt16, var )
#define FT_READ_LONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_Int32, var )
#define FT_READ_ULONG_LE( var ) FT_READ_MACRO( FT_Stream_ReadULongLE, FT_UInt32, var )
#ifndef FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM
/* initialize a stream for reading a regular system stream */
FT_BASE( FT_Error )
FT_Stream_Open( FT_Stream stream,
const char* filepathname );
#endif /* FT_CONFIG_OPTION_NO_DEFAULT_SYSTEM */
/* create a new (input) stream from an FT_Open_Args structure */
FT_BASE( FT_Error )
FT_Stream_New( FT_Library library,
const FT_Open_Args* args,
FT_Stream *astream );
/* free a stream */
FT_BASE( void )
FT_Stream_Free( FT_Stream stream,
FT_Int external );
/* initialize a stream for reading in-memory data */
FT_BASE( void )
FT_Stream_OpenMemory( FT_Stream stream,
const FT_Byte* base,
FT_ULong size );
/* close a stream (does not destroy the stream structure) */
FT_BASE( void )
FT_Stream_Close( FT_Stream stream );
/* seek within a stream. position is relative to start of stream */
FT_BASE( FT_Error )
FT_Stream_Seek( FT_Stream stream,
FT_ULong pos );
/* skip bytes in a stream */
FT_BASE( FT_Error )
FT_Stream_Skip( FT_Stream stream,
FT_Long distance );
/* return current stream position */
FT_BASE( FT_ULong )
FT_Stream_Pos( FT_Stream stream );
/* read bytes from a stream into a user-allocated buffer, returns an */
/* error if not all bytes could be read. */
FT_BASE( FT_Error )
FT_Stream_Read( FT_Stream stream,
FT_Byte* buffer,
FT_ULong count );
/* read bytes from a stream at a given position */
FT_BASE( FT_Error )
FT_Stream_ReadAt( FT_Stream stream,
FT_ULong pos,
FT_Byte* buffer,
FT_ULong count );
/* try to read bytes at the end of a stream; return number of bytes */
/* really available */
FT_BASE( FT_ULong )
FT_Stream_TryRead( FT_Stream stream,
FT_Byte* buffer,
FT_ULong count );
/* Enter a frame of `count' consecutive bytes in a stream. Returns an */
/* error if the frame could not be read/accessed. The caller can use */
/* the `FT_Stream_GetXXX' functions to retrieve frame data without */
/* error checks. */
/* */
/* You must _always_ call `FT_Stream_ExitFrame' once you have entered */
/* a stream frame! */
/* */
/* Nested frames are not permitted. */
/* */
FT_BASE( FT_Error )
FT_Stream_EnterFrame( FT_Stream stream,
FT_ULong count );
/* exit a stream frame */
FT_BASE( void )
FT_Stream_ExitFrame( FT_Stream stream );
/* Extract a stream frame. If the stream is disk-based, a heap block */
/* is allocated and the frame bytes are read into it. If the stream */
/* is memory-based, this function simply sets a pointer to the data. */
/* */
/* Useful to optimize access to memory-based streams transparently. */
/* */
/* `FT_Stream_GetXXX' functions can't be used. */
/* */
/* An extracted frame must be `freed' with a call to the function */
/* `FT_Stream_ReleaseFrame'. */
/* */
FT_BASE( FT_Error )
FT_Stream_ExtractFrame( FT_Stream stream,
FT_ULong count,
FT_Byte** pbytes );
/* release an extract frame (see `FT_Stream_ExtractFrame') */
FT_BASE( void )
FT_Stream_ReleaseFrame( FT_Stream stream,
FT_Byte** pbytes );
/* read a byte from an entered frame */
FT_BASE( FT_Byte )
FT_Stream_GetByte( FT_Stream stream );
/* read a 16-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_UInt16 )
FT_Stream_GetUShort( FT_Stream stream );
/* read a 24-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_UInt32 )
FT_Stream_GetUOffset( FT_Stream stream );
/* read a 32-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_UInt32 )
FT_Stream_GetULong( FT_Stream stream );
/* read a 16-bit little-endian unsigned integer from an entered frame */
FT_BASE( FT_UInt16 )
FT_Stream_GetUShortLE( FT_Stream stream );
/* read a 32-bit little-endian unsigned integer from an entered frame */
FT_BASE( FT_UInt32 )
FT_Stream_GetULongLE( FT_Stream stream );
/* read a byte from a stream */
FT_BASE( FT_Byte )
FT_Stream_ReadByte( FT_Stream stream,
FT_Error* error );
/* read a 16-bit big-endian unsigned integer from a stream */
FT_BASE( FT_UInt16 )
FT_Stream_ReadUShort( FT_Stream stream,
FT_Error* error );
/* read a 24-bit big-endian unsigned integer from a stream */
FT_BASE( FT_ULong )
FT_Stream_ReadUOffset( FT_Stream stream,
FT_Error* error );
/* read a 32-bit big-endian integer from a stream */
FT_BASE( FT_UInt32 )
FT_Stream_ReadULong( FT_Stream stream,
FT_Error* error );
/* read a 16-bit little-endian unsigned integer from a stream */
FT_BASE( FT_UInt16 )
FT_Stream_ReadUShortLE( FT_Stream stream,
FT_Error* error );
/* read a 32-bit little-endian unsigned integer from a stream */
FT_BASE( FT_UInt32 )
FT_Stream_ReadULongLE( FT_Stream stream,
FT_Error* error );
/* Read a structure from a stream. The structure must be described */
/* by an array of FT_Frame_Field records. */
FT_BASE( FT_Error )
FT_Stream_ReadFields( FT_Stream stream,
const FT_Frame_Field* fields,
void* structure );
#define FT_STREAM_POS() \
FT_Stream_Pos( stream )
#define FT_STREAM_SEEK( position ) \
FT_SET_ERROR( FT_Stream_Seek( stream, \
(FT_ULong)(position) ) )
#define FT_STREAM_SKIP( distance ) \
FT_SET_ERROR( FT_Stream_Skip( stream, \
(FT_Long)(distance) ) )
#define FT_STREAM_READ( buffer, count ) \
FT_SET_ERROR( FT_Stream_Read( stream, \
(FT_Byte*)(buffer), \
(FT_ULong)(count) ) )
#define FT_STREAM_READ_AT( position, buffer, count ) \
FT_SET_ERROR( FT_Stream_ReadAt( stream, \
(FT_ULong)(position), \
(FT_Byte*)(buffer), \
(FT_ULong)(count) ) )
#define FT_STREAM_READ_FIELDS( fields, object ) \
FT_SET_ERROR( FT_Stream_ReadFields( stream, fields, object ) )
#define FT_FRAME_ENTER( size ) \
FT_SET_ERROR( \
FT_DEBUG_INNER( FT_Stream_EnterFrame( stream, \
(FT_ULong)(size) ) ) )
#define FT_FRAME_EXIT() \
FT_DEBUG_INNER( FT_Stream_ExitFrame( stream ) )
#define FT_FRAME_EXTRACT( size, bytes ) \
FT_SET_ERROR( \
FT_DEBUG_INNER( FT_Stream_ExtractFrame( stream, \
(FT_ULong)(size), \
(FT_Byte**)&(bytes) ) ) )
#define FT_FRAME_RELEASE( bytes ) \
FT_DEBUG_INNER( FT_Stream_ReleaseFrame( stream, \
(FT_Byte**)&(bytes) ) )
FT_END_HEADER
#endif /* FTSTREAM_H_ */
/* END */

172
Example/include/freetype/internal/fttrace.h
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/****************************************************************************
*
* fttrace.h
*
* Tracing handling (specification only).
*
* Copyright (C) 2002-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/* definitions of trace levels for FreeType 2 */
/* the maximum string length (if the argument to `FT_TRACE_DEF` */
/* gets used as a string) plus one charachter for ':' plus */
/* another one for the trace level */
#define FT_MAX_TRACE_LEVEL_LENGTH (9 + 1 + 1)
/* the first level must always be `trace_any' */
FT_TRACE_DEF( any )
/* base components */
FT_TRACE_DEF( calc ) /* calculations (ftcalc.c) */
FT_TRACE_DEF( gloader ) /* glyph loader (ftgloadr.c) */
FT_TRACE_DEF( glyph ) /* glyph management (ftglyph.c) */
FT_TRACE_DEF( memory ) /* memory manager (ftobjs.c) */
FT_TRACE_DEF( init ) /* initialization (ftinit.c) */
FT_TRACE_DEF( io ) /* i/o interface (ftsystem.c) */
FT_TRACE_DEF( list ) /* list management (ftlist.c) */
FT_TRACE_DEF( objs ) /* base objects (ftobjs.c) */
FT_TRACE_DEF( outline ) /* outline management (ftoutln.c) */
FT_TRACE_DEF( stream ) /* stream manager (ftstream.c) */
FT_TRACE_DEF( bitmap ) /* bitmap manipulation (ftbitmap.c) */
FT_TRACE_DEF( checksum ) /* bitmap checksum (ftobjs.c) */
FT_TRACE_DEF( mm ) /* MM interface (ftmm.c) */
FT_TRACE_DEF( psprops ) /* PS driver properties (ftpsprop.c) */
FT_TRACE_DEF( raccess ) /* resource fork accessor (ftrfork.c) */
FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */
/* rasterizers */
FT_TRACE_DEF( raster ) /* monochrome rasterizer (ftraster.c) */
FT_TRACE_DEF( smooth ) /* anti-aliasing raster (ftgrays.c) */
/* ot-svg module */
FT_TRACE_DEF( otsvg ) /* OT-SVG renderer (ftsvg.c) */
/* cache sub-system */
FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */
/* SFNT driver components */
FT_TRACE_DEF( sfdriver ) /* SFNT font driver (sfdriver.c) */
FT_TRACE_DEF( sfobjs ) /* SFNT object handler (sfobjs.c) */
FT_TRACE_DEF( sfwoff ) /* WOFF format handler (sfwoff.c) */
FT_TRACE_DEF( sfwoff2 ) /* WOFF2 format handler (sfwoff2.c) */
FT_TRACE_DEF( ttbdf ) /* TrueType embedded BDF (ttbdf.c) */
FT_TRACE_DEF( ttcmap ) /* charmap handler (ttcmap.c) */
FT_TRACE_DEF( ttcolr ) /* glyph layer table (ttcolr.c) */
FT_TRACE_DEF( ttcpal ) /* color palette table (ttcpal.c) */
FT_TRACE_DEF( ttsvg ) /* OpenType SVG table (ttsvg.c) */
FT_TRACE_DEF( ttkern ) /* kerning handler (ttkern.c) */
FT_TRACE_DEF( ttload ) /* basic TrueType tables (ttload.c) */
FT_TRACE_DEF( ttmtx ) /* metrics-related tables (ttmtx.c) */
FT_TRACE_DEF( ttpost ) /* PS table processing (ttpost.c) */
FT_TRACE_DEF( ttsbit ) /* TrueType sbit handling (ttsbit.c) */
/* TrueType driver components */
FT_TRACE_DEF( ttdriver ) /* TT font driver (ttdriver.c) */
FT_TRACE_DEF( ttgload ) /* TT glyph loader (ttgload.c) */
FT_TRACE_DEF( ttgxvar ) /* TrueType GX var handler (ttgxvar.c) */
FT_TRACE_DEF( ttinterp ) /* bytecode interpreter (ttinterp.c) */
FT_TRACE_DEF( ttobjs ) /* TT objects manager (ttobjs.c) */
FT_TRACE_DEF( ttpload ) /* TT data/program loader (ttpload.c) */
/* Type 1 driver components */
FT_TRACE_DEF( t1afm )
FT_TRACE_DEF( t1driver )
FT_TRACE_DEF( t1gload )
FT_TRACE_DEF( t1load )
FT_TRACE_DEF( t1objs )
FT_TRACE_DEF( t1parse )
/* PostScript helper module `psaux' */
FT_TRACE_DEF( afmparse )
FT_TRACE_DEF( cffdecode )
FT_TRACE_DEF( psconv )
FT_TRACE_DEF( psobjs )
FT_TRACE_DEF( t1decode )
/* PostScript hinting module `pshinter' */
FT_TRACE_DEF( pshalgo )
FT_TRACE_DEF( pshrec )
/* Type 2 driver components */
FT_TRACE_DEF( cffdriver )
FT_TRACE_DEF( cffgload )
FT_TRACE_DEF( cffload )
FT_TRACE_DEF( cffobjs )
FT_TRACE_DEF( cffparse )
FT_TRACE_DEF( cf2blues )
FT_TRACE_DEF( cf2hints )
FT_TRACE_DEF( cf2interp )
/* Type 42 driver component */
FT_TRACE_DEF( t42 )
/* CID driver components */
FT_TRACE_DEF( ciddriver )
FT_TRACE_DEF( cidgload )
FT_TRACE_DEF( cidload )
FT_TRACE_DEF( cidobjs )
FT_TRACE_DEF( cidparse )
/* Windows font component */
FT_TRACE_DEF( winfnt )
/* PCF font components */
FT_TRACE_DEF( pcfdriver )
FT_TRACE_DEF( pcfread )
/* BDF font components */
FT_TRACE_DEF( bdfdriver )
FT_TRACE_DEF( bdflib )
/* PFR font component */
FT_TRACE_DEF( pfr )
/* OpenType validation components */
FT_TRACE_DEF( otvcommon )
FT_TRACE_DEF( otvbase )
FT_TRACE_DEF( otvgdef )
FT_TRACE_DEF( otvgpos )
FT_TRACE_DEF( otvgsub )
FT_TRACE_DEF( otvjstf )
FT_TRACE_DEF( otvmath )
FT_TRACE_DEF( otvmodule )
/* TrueTypeGX/AAT validation components */
FT_TRACE_DEF( gxvbsln )
FT_TRACE_DEF( gxvcommon )
FT_TRACE_DEF( gxvfeat )
FT_TRACE_DEF( gxvjust )
FT_TRACE_DEF( gxvkern )
FT_TRACE_DEF( gxvmodule )
FT_TRACE_DEF( gxvmort )
FT_TRACE_DEF( gxvmorx )
FT_TRACE_DEF( gxvlcar )
FT_TRACE_DEF( gxvopbd )
FT_TRACE_DEF( gxvprop )
FT_TRACE_DEF( gxvtrak )
/* autofit components */
FT_TRACE_DEF( afcjk )
FT_TRACE_DEF( afglobal )
FT_TRACE_DEF( afhints )
FT_TRACE_DEF( afmodule )
FT_TRACE_DEF( aflatin )
FT_TRACE_DEF( afshaper )
/* SDF components */
FT_TRACE_DEF( sdf ) /* signed distance raster for outlines (ftsdf.c) */
FT_TRACE_DEF( bsdf ) /* signed distance raster for bitmaps (ftbsdf.c) */
/* END */

160
Example/include/freetype/internal/ftvalid.h
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/****************************************************************************
*
* ftvalid.h
*
* FreeType validation support (specification).
*
* Copyright (C) 2004-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef FTVALID_H_
#define FTVALID_H_
#include <ft2build.h>
#include FT_CONFIG_STANDARD_LIBRARY_H /* for ft_jmpbuf */
#include "compiler-macros.h"
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/**** ****/
/**** ****/
/**** V A L I D A T I O N ****/
/**** ****/
/**** ****/
/*************************************************************************/
/*************************************************************************/
/*************************************************************************/
/* handle to a validation object */
typedef struct FT_ValidatorRec_ volatile* FT_Validator;
/**************************************************************************
*
* There are three distinct validation levels defined here:
*
* FT_VALIDATE_DEFAULT ::
* A table that passes this validation level can be used reliably by
* FreeType. It generally means that all offsets have been checked to
* prevent out-of-bound reads, that array counts are correct, etc.
*
* FT_VALIDATE_TIGHT ::
* A table that passes this validation level can be used reliably and
* doesn't contain invalid data. For example, a charmap table that
* returns invalid glyph indices will not pass, even though it can be
* used with FreeType in default mode (the library will simply return an
* error later when trying to load the glyph).
*
* It also checks that fields which must be a multiple of 2, 4, or 8,
* don't have incorrect values, etc.
*
* FT_VALIDATE_PARANOID ::
* Only for font debugging. Checks that a table follows the
* specification by 100%. Very few fonts will be able to pass this level
* anyway but it can be useful for certain tools like font
* editors/converters.
*/
typedef enum FT_ValidationLevel_
{
FT_VALIDATE_DEFAULT = 0,
FT_VALIDATE_TIGHT,
FT_VALIDATE_PARANOID
} FT_ValidationLevel;
#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
/* We disable the warning `structure was padded due to */
/* __declspec(align())' in order to compile cleanly with */
/* the maximum level of warnings. */
#pragma warning( push )
#pragma warning( disable : 4324 )
#endif /* _MSC_VER */
/* validator structure */
typedef struct FT_ValidatorRec_
{
ft_jmp_buf jump_buffer; /* used for exception handling */
const FT_Byte* base; /* address of table in memory */
const FT_Byte* limit; /* `base' + sizeof(table) in memory */
FT_ValidationLevel level; /* validation level */
FT_Error error; /* error returned. 0 means success */
} FT_ValidatorRec;
#if defined( _MSC_VER )
#pragma warning( pop )
#endif
#define FT_VALIDATOR( x ) ( (FT_Validator)( x ) )
FT_BASE( void )
ft_validator_init( FT_Validator valid,
const FT_Byte* base,
const FT_Byte* limit,
FT_ValidationLevel level );
/* Do not use this. It's broken and will cause your validator to crash */
/* if you run it on an invalid font. */
FT_BASE( FT_Int )
ft_validator_run( FT_Validator valid );
/* Sets the error field in a validator, then calls `longjmp' to return */
/* to high-level caller. Using `setjmp/longjmp' avoids many stupid */
/* error checks within the validation routines. */
/* */
FT_BASE( void )
ft_validator_error( FT_Validator valid,
FT_Error error );
/* Calls ft_validate_error. Assumes that the `valid' local variable */
/* holds a pointer to the current validator object. */
/* */
#define FT_INVALID( _error ) FT_INVALID_( _error )
#define FT_INVALID_( _error ) \
ft_validator_error( valid, FT_THROW( _error ) )
/* called when a broken table is detected */
#define FT_INVALID_TOO_SHORT \
FT_INVALID( Invalid_Table )
/* called when an invalid offset is detected */
#define FT_INVALID_OFFSET \
FT_INVALID( Invalid_Offset )
/* called when an invalid format/value is detected */
#define FT_INVALID_FORMAT \
FT_INVALID( Invalid_Table )
/* called when an invalid glyph index is detected */
#define FT_INVALID_GLYPH_ID \
FT_INVALID( Invalid_Glyph_Index )
/* called when an invalid field value is detected */
#define FT_INVALID_DATA \
FT_INVALID( Invalid_Table )
FT_END_HEADER
#endif /* FTVALID_H_ */
/* END */

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Example/include/freetype/internal/pshints.h
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/****************************************************************************
*
* pshints.h
*
* Interface to Postscript-specific (Type 1 and Type 2) hints
* recorders (specification only). These are used to support native
* T1/T2 hints in the 'type1', 'cid', and 'cff' font drivers.
*
* Copyright (C) 2001-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef PSHINTS_H_
#define PSHINTS_H_
#include <freetype/freetype.h>
#include <freetype/t1tables.h>
FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** INTERNAL REPRESENTATION OF GLOBALS *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
typedef struct PSH_GlobalsRec_* PSH_Globals;
typedef FT_Error
(*PSH_Globals_NewFunc)( FT_Memory memory,
T1_Private* private_dict,
PSH_Globals* aglobals );
typedef void
(*PSH_Globals_SetScaleFunc)( PSH_Globals globals,
FT_Fixed x_scale,
FT_Fixed y_scale,
FT_Fixed x_delta,
FT_Fixed y_delta );
typedef void
(*PSH_Globals_DestroyFunc)( PSH_Globals globals );
typedef struct PSH_Globals_FuncsRec_
{
PSH_Globals_NewFunc create;
PSH_Globals_SetScaleFunc set_scale;
PSH_Globals_DestroyFunc destroy;
} PSH_Globals_FuncsRec, *PSH_Globals_Funcs;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PUBLIC TYPE 1 HINTS RECORDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* T1_Hints
*
* @description:
* This is a handle to an opaque structure used to record glyph hints
* from a Type 1 character glyph character string.
*
* The methods used to operate on this object are defined by the
* @T1_Hints_FuncsRec structure. Recording glyph hints is normally
* achieved through the following scheme:
*
* - Open a new hint recording session by calling the 'open' method.
* This rewinds the recorder and prepare it for new input.
*
* - For each hint found in the glyph charstring, call the corresponding
* method ('stem', 'stem3', or 'reset'). Note that these functions do
* not return an error code.
*
* - Close the recording session by calling the 'close' method. It
* returns an error code if the hints were invalid or something strange
* happened (e.g., memory shortage).
*
* The hints accumulated in the object can later be used by the
* PostScript hinter.
*
*/
typedef struct T1_HintsRec_* T1_Hints;
/**************************************************************************
*
* @type:
* T1_Hints_Funcs
*
* @description:
* A pointer to the @T1_Hints_FuncsRec structure that defines the API of
* a given @T1_Hints object.
*
*/
typedef const struct T1_Hints_FuncsRec_* T1_Hints_Funcs;
/**************************************************************************
*
* @functype:
* T1_Hints_OpenFunc
*
* @description:
* A method of the @T1_Hints class used to prepare it for a new Type 1
* hints recording session.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* @note:
* You should always call the @T1_Hints_CloseFunc method in order to
* close an opened recording session.
*
*/
typedef void
(*T1_Hints_OpenFunc)( T1_Hints hints );
/**************************************************************************
*
* @functype:
* T1_Hints_SetStemFunc
*
* @description:
* A method of the @T1_Hints class used to record a new horizontal or
* vertical stem. This corresponds to the Type 1 'hstem' and 'vstem'
* operators.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* dimension ::
* 0 for horizontal stems (hstem), 1 for vertical ones (vstem).
*
* coords ::
* Array of 2 coordinates in 16.16 format, used as (position,length)
* stem descriptor.
*
* @note:
* Use vertical coordinates (y) for horizontal stems (dim=0). Use
* horizontal coordinates (x) for vertical stems (dim=1).
*
* 'coords[0]' is the absolute stem position (lowest coordinate);
* 'coords[1]' is the length.
*
* The length can be negative, in which case it must be either -20 or
* -21. It is interpreted as a 'ghost' stem, according to the Type 1
* specification.
*
* If the length is -21 (corresponding to a bottom ghost stem), then the
* real stem position is 'coords[0]+coords[1]'.
*
*/
typedef void
(*T1_Hints_SetStemFunc)( T1_Hints hints,
FT_UInt dimension,
FT_Fixed* coords );
/**************************************************************************
*
* @functype:
* T1_Hints_SetStem3Func
*
* @description:
* A method of the @T1_Hints class used to record three
* counter-controlled horizontal or vertical stems at once.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* dimension ::
* 0 for horizontal stems, 1 for vertical ones.
*
* coords ::
* An array of 6 values in 16.16 format, holding 3 (position,length)
* pairs for the counter-controlled stems.
*
* @note:
* Use vertical coordinates (y) for horizontal stems (dim=0). Use
* horizontal coordinates (x) for vertical stems (dim=1).
*
* The lengths cannot be negative (ghost stems are never
* counter-controlled).
*
*/
typedef void
(*T1_Hints_SetStem3Func)( T1_Hints hints,
FT_UInt dimension,
FT_Fixed* coords );
/**************************************************************************
*
* @functype:
* T1_Hints_ResetFunc
*
* @description:
* A method of the @T1_Hints class used to reset the stems hints in a
* recording session.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* end_point ::
* The index of the last point in the input glyph in which the
* previously defined hints apply.
*
*/
typedef void
(*T1_Hints_ResetFunc)( T1_Hints hints,
FT_UInt end_point );
/**************************************************************************
*
* @functype:
* T1_Hints_CloseFunc
*
* @description:
* A method of the @T1_Hints class used to close a hint recording
* session.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* end_point ::
* The index of the last point in the input glyph.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* The error code is set to indicate that an error occurred during the
* recording session.
*
*/
typedef FT_Error
(*T1_Hints_CloseFunc)( T1_Hints hints,
FT_UInt end_point );
/**************************************************************************
*
* @functype:
* T1_Hints_ApplyFunc
*
* @description:
* A method of the @T1_Hints class used to apply hints to the
* corresponding glyph outline. Must be called once all hints have been
* recorded.
*
* @input:
* hints ::
* A handle to the Type 1 hints recorder.
*
* outline ::
* A pointer to the target outline descriptor.
*
* globals ::
* The hinter globals for this font.
*
* hint_mode ::
* Hinting information.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* On input, all points within the outline are in font coordinates. On
* output, they are in 1/64 of pixels.
*
* The scaling transformation is taken from the 'globals' object which
* must correspond to the same font as the glyph.
*
*/
typedef FT_Error
(*T1_Hints_ApplyFunc)( T1_Hints hints,
FT_Outline* outline,
PSH_Globals globals,
FT_Render_Mode hint_mode );
/**************************************************************************
*
* @struct:
* T1_Hints_FuncsRec
*
* @description:
* The structure used to provide the API to @T1_Hints objects.
*
* @fields:
* hints ::
* A handle to the T1 Hints recorder.
*
* open ::
* The function to open a recording session.
*
* close ::
* The function to close a recording session.
*
* stem ::
* The function to set a simple stem.
*
* stem3 ::
* The function to set counter-controlled stems.
*
* reset ::
* The function to reset stem hints.
*
* apply ::
* The function to apply the hints to the corresponding glyph outline.
*
*/
typedef struct T1_Hints_FuncsRec_
{
T1_Hints hints;
T1_Hints_OpenFunc open;
T1_Hints_CloseFunc close;
T1_Hints_SetStemFunc stem;
T1_Hints_SetStem3Func stem3;
T1_Hints_ResetFunc reset;
T1_Hints_ApplyFunc apply;
} T1_Hints_FuncsRec;
/*************************************************************************/
/*************************************************************************/
/***** *****/
/***** PUBLIC TYPE 2 HINTS RECORDER *****/
/***** *****/
/*************************************************************************/
/*************************************************************************/
/**************************************************************************
*
* @type:
* T2_Hints
*
* @description:
* This is a handle to an opaque structure used to record glyph hints
* from a Type 2 character glyph character string.
*
* The methods used to operate on this object are defined by the
* @T2_Hints_FuncsRec structure. Recording glyph hints is normally
* achieved through the following scheme:
*
* - Open a new hint recording session by calling the 'open' method.
* This rewinds the recorder and prepare it for new input.
*
* - For each hint found in the glyph charstring, call the corresponding
* method ('stems', 'hintmask', 'counters'). Note that these functions
* do not return an error code.
*
* - Close the recording session by calling the 'close' method. It
* returns an error code if the hints were invalid or something strange
* happened (e.g., memory shortage).
*
* The hints accumulated in the object can later be used by the
* Postscript hinter.
*
*/
typedef struct T2_HintsRec_* T2_Hints;
/**************************************************************************
*
* @type:
* T2_Hints_Funcs
*
* @description:
* A pointer to the @T2_Hints_FuncsRec structure that defines the API of
* a given @T2_Hints object.
*
*/
typedef const struct T2_Hints_FuncsRec_* T2_Hints_Funcs;
/**************************************************************************
*
* @functype:
* T2_Hints_OpenFunc
*
* @description:
* A method of the @T2_Hints class used to prepare it for a new Type 2
* hints recording session.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* @note:
* You should always call the @T2_Hints_CloseFunc method in order to
* close an opened recording session.
*
*/
typedef void
(*T2_Hints_OpenFunc)( T2_Hints hints );
/**************************************************************************
*
* @functype:
* T2_Hints_StemsFunc
*
* @description:
* A method of the @T2_Hints class used to set the table of stems in
* either the vertical or horizontal dimension. Equivalent to the
* 'hstem', 'vstem', 'hstemhm', and 'vstemhm' Type 2 operators.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* dimension ::
* 0 for horizontal stems (hstem), 1 for vertical ones (vstem).
*
* count ::
* The number of stems.
*
* coords ::
* An array of 'count' (position,length) pairs in 16.16 format.
*
* @note:
* Use vertical coordinates (y) for horizontal stems (dim=0). Use
* horizontal coordinates (x) for vertical stems (dim=1).
*
* There are '2*count' elements in the 'coords' array. Each even element
* is an absolute position in font units, each odd element is a length in
* font units.
*
* A length can be negative, in which case it must be either -20 or -21.
* It is interpreted as a 'ghost' stem, according to the Type 1
* specification.
*
*/
typedef void
(*T2_Hints_StemsFunc)( T2_Hints hints,
FT_UInt dimension,
FT_Int count,
FT_Fixed* coordinates );
/**************************************************************************
*
* @functype:
* T2_Hints_MaskFunc
*
* @description:
* A method of the @T2_Hints class used to set a given hintmask (this
* corresponds to the 'hintmask' Type 2 operator).
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* end_point ::
* The glyph index of the last point to which the previously defined or
* activated hints apply.
*
* bit_count ::
* The number of bits in the hint mask.
*
* bytes ::
* An array of bytes modelling the hint mask.
*
* @note:
* If the hintmask starts the charstring (before any glyph point
* definition), the value of `end_point` should be 0.
*
* `bit_count` is the number of meaningful bits in the 'bytes' array; it
* must be equal to the total number of hints defined so far (i.e.,
* horizontal+verticals).
*
* The 'bytes' array can come directly from the Type 2 charstring and
* respects the same format.
*
*/
typedef void
(*T2_Hints_MaskFunc)( T2_Hints hints,
FT_UInt end_point,
FT_UInt bit_count,
const FT_Byte* bytes );
/**************************************************************************
*
* @functype:
* T2_Hints_CounterFunc
*
* @description:
* A method of the @T2_Hints class used to set a given counter mask (this
* corresponds to the 'hintmask' Type 2 operator).
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* end_point ::
* A glyph index of the last point to which the previously defined or
* active hints apply.
*
* bit_count ::
* The number of bits in the hint mask.
*
* bytes ::
* An array of bytes modelling the hint mask.
*
* @note:
* If the hintmask starts the charstring (before any glyph point
* definition), the value of `end_point` should be 0.
*
* `bit_count` is the number of meaningful bits in the 'bytes' array; it
* must be equal to the total number of hints defined so far (i.e.,
* horizontal+verticals).
*
* The 'bytes' array can come directly from the Type 2 charstring and
* respects the same format.
*
*/
typedef void
(*T2_Hints_CounterFunc)( T2_Hints hints,
FT_UInt bit_count,
const FT_Byte* bytes );
/**************************************************************************
*
* @functype:
* T2_Hints_CloseFunc
*
* @description:
* A method of the @T2_Hints class used to close a hint recording
* session.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* end_point ::
* The index of the last point in the input glyph.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* The error code is set to indicate that an error occurred during the
* recording session.
*
*/
typedef FT_Error
(*T2_Hints_CloseFunc)( T2_Hints hints,
FT_UInt end_point );
/**************************************************************************
*
* @functype:
* T2_Hints_ApplyFunc
*
* @description:
* A method of the @T2_Hints class used to apply hints to the
* corresponding glyph outline. Must be called after the 'close' method.
*
* @input:
* hints ::
* A handle to the Type 2 hints recorder.
*
* outline ::
* A pointer to the target outline descriptor.
*
* globals ::
* The hinter globals for this font.
*
* hint_mode ::
* Hinting information.
*
* @return:
* FreeType error code. 0 means success.
*
* @note:
* On input, all points within the outline are in font coordinates. On
* output, they are in 1/64 of pixels.
*
* The scaling transformation is taken from the 'globals' object which
* must correspond to the same font than the glyph.
*
*/
typedef FT_Error
(*T2_Hints_ApplyFunc)( T2_Hints hints,
FT_Outline* outline,
PSH_Globals globals,
FT_Render_Mode hint_mode );
/**************************************************************************
*
* @struct:
* T2_Hints_FuncsRec
*
* @description:
* The structure used to provide the API to @T2_Hints objects.
*
* @fields:
* hints ::
* A handle to the T2 hints recorder object.
*
* open ::
* The function to open a recording session.
*
* close ::
* The function to close a recording session.
*
* stems ::
* The function to set the dimension's stems table.
*
* hintmask ::
* The function to set hint masks.
*
* counter ::
* The function to set counter masks.
*
* apply ::
* The function to apply the hints on the corresponding glyph outline.
*
*/
typedef struct T2_Hints_FuncsRec_
{
T2_Hints hints;
T2_Hints_OpenFunc open;
T2_Hints_CloseFunc close;
T2_Hints_StemsFunc stems;
T2_Hints_MaskFunc hintmask;
T2_Hints_CounterFunc counter;
T2_Hints_ApplyFunc apply;
} T2_Hints_FuncsRec;
/* */
typedef struct PSHinter_Interface_
{
PSH_Globals_Funcs (*get_globals_funcs)( FT_Module module );
T1_Hints_Funcs (*get_t1_funcs) ( FT_Module module );
T2_Hints_Funcs (*get_t2_funcs) ( FT_Module module );
} PSHinter_Interface;
typedef PSHinter_Interface* PSHinter_Service;
#define FT_DEFINE_PSHINTER_INTERFACE( \
class_, \
get_globals_funcs_, \
get_t1_funcs_, \
get_t2_funcs_ ) \
static const PSHinter_Interface class_ = \
{ \
get_globals_funcs_, \
get_t1_funcs_, \
get_t2_funcs_ \
};
FT_END_HEADER
#endif /* PSHINTS_H_ */
/* END */

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Example/include/freetype/internal/services/svbdf.h
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/****************************************************************************
*
* svbdf.h
*
* The FreeType BDF services (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVBDF_H_
#define SVBDF_H_
#include <freetype/ftbdf.h>
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_BDF "bdf"
typedef FT_Error
(*FT_BDF_GetCharsetIdFunc)( FT_Face face,
const char* *acharset_encoding,
const char* *acharset_registry );
typedef FT_Error
(*FT_BDF_GetPropertyFunc)( FT_Face face,
const char* prop_name,
BDF_PropertyRec *aproperty );
FT_DEFINE_SERVICE( BDF )
{
FT_BDF_GetCharsetIdFunc get_charset_id;
FT_BDF_GetPropertyFunc get_property;
};
#define FT_DEFINE_SERVICE_BDFRec( class_, \
get_charset_id_, \
get_property_ ) \
static const FT_Service_BDFRec class_ = \
{ \
get_charset_id_, get_property_ \
};
/* */
FT_END_HEADER
#endif /* SVBDF_H_ */
/* END */

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Example/include/freetype/internal/services/svcfftl.h
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/****************************************************************************
*
* svcfftl.h
*
* The FreeType CFF tables loader service (specification).
*
* Copyright (C) 2017-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVCFFTL_H_
#define SVCFFTL_H_
#include <freetype/internal/ftserv.h>
#include <freetype/internal/cfftypes.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_CFF_LOAD "cff-load"
typedef FT_UShort
(*FT_Get_Standard_Encoding_Func)( FT_UInt charcode );
typedef FT_Error
(*FT_Load_Private_Dict_Func)( CFF_Font font,
CFF_SubFont subfont,
FT_UInt lenNDV,
FT_Fixed* NDV );
typedef FT_Byte
(*FT_FD_Select_Get_Func)( CFF_FDSelect fdselect,
FT_UInt glyph_index );
typedef FT_Bool
(*FT_Blend_Check_Vector_Func)( CFF_Blend blend,
FT_UInt vsindex,
FT_UInt lenNDV,
FT_Fixed* NDV );
typedef FT_Error
(*FT_Blend_Build_Vector_Func)( CFF_Blend blend,
FT_UInt vsindex,
FT_UInt lenNDV,
FT_Fixed* NDV );
FT_DEFINE_SERVICE( CFFLoad )
{
FT_Get_Standard_Encoding_Func get_standard_encoding;
FT_Load_Private_Dict_Func load_private_dict;
FT_FD_Select_Get_Func fd_select_get;
FT_Blend_Check_Vector_Func blend_check_vector;
FT_Blend_Build_Vector_Func blend_build_vector;
};
#define FT_DEFINE_SERVICE_CFFLOADREC( class_, \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ ) \
static const FT_Service_CFFLoadRec class_ = \
{ \
get_standard_encoding_, \
load_private_dict_, \
fd_select_get_, \
blend_check_vector_, \
blend_build_vector_ \
};
FT_END_HEADER
#endif
/* END */

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Example/include/freetype/internal/services/svcid.h
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/****************************************************************************
*
* svcid.h
*
* The FreeType CID font services (specification).
*
* Copyright (C) 2007-2023 by
* Derek Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVCID_H_
#define SVCID_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_CID "CID"
typedef FT_Error
(*FT_CID_GetRegistryOrderingSupplementFunc)( FT_Face face,
const char* *registry,
const char* *ordering,
FT_Int *supplement );
typedef FT_Error
(*FT_CID_GetIsInternallyCIDKeyedFunc)( FT_Face face,
FT_Bool *is_cid );
typedef FT_Error
(*FT_CID_GetCIDFromGlyphIndexFunc)( FT_Face face,
FT_UInt glyph_index,
FT_UInt *cid );
FT_DEFINE_SERVICE( CID )
{
FT_CID_GetRegistryOrderingSupplementFunc get_ros;
FT_CID_GetIsInternallyCIDKeyedFunc get_is_cid;
FT_CID_GetCIDFromGlyphIndexFunc get_cid_from_glyph_index;
};
#define FT_DEFINE_SERVICE_CIDREC( class_, \
get_ros_, \
get_is_cid_, \
get_cid_from_glyph_index_ ) \
static const FT_Service_CIDRec class_ = \
{ \
get_ros_, get_is_cid_, get_cid_from_glyph_index_ \
};
/* */
FT_END_HEADER
#endif /* SVCID_H_ */
/* END */

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Example/include/freetype/internal/services/svfntfmt.h
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/****************************************************************************
*
* svfntfmt.h
*
* The FreeType font format service (specification only).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVFNTFMT_H_
#define SVFNTFMT_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A trivial service used to return the name of a face's font driver,
* according to the XFree86 nomenclature. Note that the service data is a
* simple constant string pointer.
*/
#define FT_SERVICE_ID_FONT_FORMAT "font-format"
#define FT_FONT_FORMAT_TRUETYPE "TrueType"
#define FT_FONT_FORMAT_TYPE_1 "Type 1"
#define FT_FONT_FORMAT_BDF "BDF"
#define FT_FONT_FORMAT_PCF "PCF"
#define FT_FONT_FORMAT_TYPE_42 "Type 42"
#define FT_FONT_FORMAT_CID "CID Type 1"
#define FT_FONT_FORMAT_CFF "CFF"
#define FT_FONT_FORMAT_PFR "PFR"
#define FT_FONT_FORMAT_WINFNT "Windows FNT"
/* */
FT_END_HEADER
#endif /* SVFNTFMT_H_ */
/* END */

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Example/include/freetype/internal/services/svgldict.h
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/****************************************************************************
*
* svgldict.h
*
* The FreeType glyph dictionary services (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVGLDICT_H_
#define SVGLDICT_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service used to retrieve glyph names, as well as to find the index of
* a given glyph name in a font.
*
*/
#define FT_SERVICE_ID_GLYPH_DICT "glyph-dict"
typedef FT_Error
(*FT_GlyphDict_GetNameFunc)( FT_Face face,
FT_UInt glyph_index,
FT_Pointer buffer,
FT_UInt buffer_max );
typedef FT_UInt
(*FT_GlyphDict_NameIndexFunc)( FT_Face face,
const FT_String* glyph_name );
FT_DEFINE_SERVICE( GlyphDict )
{
FT_GlyphDict_GetNameFunc get_name;
FT_GlyphDict_NameIndexFunc name_index; /* optional */
};
#define FT_DEFINE_SERVICE_GLYPHDICTREC( class_, \
get_name_, \
name_index_ ) \
static const FT_Service_GlyphDictRec class_ = \
{ \
get_name_, name_index_ \
};
/* */
FT_END_HEADER
#endif /* SVGLDICT_H_ */
/* END */

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Example/include/freetype/internal/services/svgxval.h
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/****************************************************************************
*
* svgxval.h
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
* Copyright (C) 2004-2023 by
* Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
/****************************************************************************
*
* gxvalid is derived from both gxlayout module and otvalid module.
* Development of gxlayout is supported by the Information-technology
* Promotion Agency(IPA), Japan.
*
*/
#ifndef SVGXVAL_H_
#define SVGXVAL_H_
#include <freetype/ftgxval.h>
#include <freetype/internal/ftvalid.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_GX_VALIDATE "truetypegx-validate"
#define FT_SERVICE_ID_CLASSICKERN_VALIDATE "classickern-validate"
typedef FT_Error
(*gxv_validate_func)( FT_Face face,
FT_UInt gx_flags,
FT_Bytes tables[FT_VALIDATE_GX_LENGTH],
FT_UInt table_length );
typedef FT_Error
(*ckern_validate_func)( FT_Face face,
FT_UInt ckern_flags,
FT_Bytes *ckern_table );
FT_DEFINE_SERVICE( GXvalidate )
{
gxv_validate_func validate;
};
FT_DEFINE_SERVICE( CKERNvalidate )
{
ckern_validate_func validate;
};
/* */
FT_END_HEADER
#endif /* SVGXVAL_H_ */
/* END */

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Example/include/freetype/internal/services/svkern.h
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/****************************************************************************
*
* svkern.h
*
* The FreeType Kerning service (specification).
*
* Copyright (C) 2006-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVKERN_H_
#define SVKERN_H_
#include <freetype/internal/ftserv.h>
#include <freetype/tttables.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_KERNING "kerning"
typedef FT_Error
(*FT_Kerning_TrackGetFunc)( FT_Face face,
FT_Fixed point_size,
FT_Int degree,
FT_Fixed* akerning );
FT_DEFINE_SERVICE( Kerning )
{
FT_Kerning_TrackGetFunc get_track;
};
/* */
FT_END_HEADER
#endif /* SVKERN_H_ */
/* END */

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Example/include/freetype/internal/services/svmetric.h
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/****************************************************************************
*
* svmetric.h
*
* The FreeType services for metrics variations (specification).
*
* Copyright (C) 2016-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVMETRIC_H_
#define SVMETRIC_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A service to manage the `HVAR, `MVAR', and `VVAR' OpenType tables.
*
*/
#define FT_SERVICE_ID_METRICS_VARIATIONS "metrics-variations"
/* HVAR */
typedef FT_Error
(*FT_HAdvance_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_LSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_RSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
/* VVAR */
typedef FT_Error
(*FT_VAdvance_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_TSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_BSB_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
typedef FT_Error
(*FT_VOrg_Adjust_Func)( FT_Face face,
FT_UInt gindex,
FT_Int *avalue );
/* MVAR */
typedef void
(*FT_Metrics_Adjust_Func)( FT_Face face );
typedef FT_Error
(*FT_Size_Reset_Func)( FT_Size size );
FT_DEFINE_SERVICE( MetricsVariations )
{
FT_HAdvance_Adjust_Func hadvance_adjust;
FT_LSB_Adjust_Func lsb_adjust;
FT_RSB_Adjust_Func rsb_adjust;
FT_VAdvance_Adjust_Func vadvance_adjust;
FT_TSB_Adjust_Func tsb_adjust;
FT_BSB_Adjust_Func bsb_adjust;
FT_VOrg_Adjust_Func vorg_adjust;
FT_Metrics_Adjust_Func metrics_adjust;
FT_Size_Reset_Func size_reset;
};
#define FT_DEFINE_SERVICE_METRICSVARIATIONSREC( class_, \
hadvance_adjust_, \
lsb_adjust_, \
rsb_adjust_, \
vadvance_adjust_, \
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
metrics_adjust_, \
size_reset_ ) \
static const FT_Service_MetricsVariationsRec class_ = \
{ \
hadvance_adjust_, \
lsb_adjust_, \
rsb_adjust_, \
vadvance_adjust_, \
tsb_adjust_, \
bsb_adjust_, \
vorg_adjust_, \
metrics_adjust_, \
size_reset_ \
};
/* */
FT_END_HEADER
#endif /* SVMETRIC_H_ */
/* END */

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Example/include/freetype/internal/services/svmm.h
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/****************************************************************************
*
* svmm.h
*
* The FreeType Multiple Masters and GX var services (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, Werner Lemberg, and Dominik Röttsches.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVMM_H_
#define SVMM_H_
#include <freetype/ftmm.h>
#include <freetype/internal/ftserv.h>
#include <freetype/internal/ftmmtypes.h>
FT_BEGIN_HEADER
/*
* A service used to manage multiple-masters data in a given face.
*
* See the related APIs in `ftmm.h' (FT_MULTIPLE_MASTERS_H).
*
*/
#define FT_SERVICE_ID_MULTI_MASTERS "multi-masters"
typedef FT_Error
(*FT_Get_MM_Func)( FT_Face face,
FT_Multi_Master* master );
typedef FT_Error
(*FT_Get_MM_Var_Func)( FT_Face face,
FT_MM_Var* *master );
typedef FT_Error
(*FT_Set_MM_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Long* coords );
/* use return value -1 to indicate that the new coordinates */
/* are equal to the current ones; no changes are thus needed */
typedef FT_Error
(*FT_Set_Var_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
/* use return value -1 to indicate that the new coordinates */
/* are equal to the current ones; no changes are thus needed */
typedef FT_Error
(*FT_Set_MM_Blend_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
typedef FT_Error
(*FT_Get_Var_Design_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
typedef FT_Error
(*FT_Set_Named_Instance_Func)( FT_Face face,
FT_UInt instance_index );
typedef FT_Error
(*FT_Get_Default_Named_Instance_Func)( FT_Face face,
FT_UInt *instance_index );
typedef FT_Error
(*FT_Get_MM_Blend_Func)( FT_Face face,
FT_UInt num_coords,
FT_Fixed* coords );
typedef FT_Error
(*FT_Get_Var_Blend_Func)( FT_Face face,
FT_UInt *num_coords,
FT_Fixed* *coords,
FT_Fixed* *normalizedcoords,
FT_MM_Var* *mm_var );
typedef void
(*FT_Done_Blend_Func)( FT_Face face );
typedef FT_Error
(*FT_Set_MM_WeightVector_Func)( FT_Face face,
FT_UInt len,
FT_Fixed* weight_vector );
typedef FT_Error
(*FT_Get_MM_WeightVector_Func)( FT_Face face,
FT_UInt* len,
FT_Fixed* weight_vector );
typedef void
(*FT_Construct_PS_Name_Func)( FT_Face face );
typedef FT_Error
(*FT_Var_Load_Delta_Set_Idx_Map_Func)( FT_Face face,
FT_ULong offset,
GX_DeltaSetIdxMap map,
GX_ItemVarStore itemStore,
FT_ULong table_len );
typedef FT_Error
(*FT_Var_Load_Item_Var_Store_Func)( FT_Face face,
FT_ULong offset,
GX_ItemVarStore itemStore );
typedef FT_ItemVarDelta
(*FT_Var_Get_Item_Delta_Func)( FT_Face face,
GX_ItemVarStore itemStore,
FT_UInt outerIndex,
FT_UInt innerIndex );
typedef void
(*FT_Var_Done_Item_Var_Store_Func)( FT_Face face,
GX_ItemVarStore itemStore );
typedef void
(*FT_Var_Done_Delta_Set_Idx_Map_Func)( FT_Face face,
GX_DeltaSetIdxMap deltaSetIdxMap );
FT_DEFINE_SERVICE( MultiMasters )
{
FT_Get_MM_Func get_mm;
FT_Set_MM_Design_Func set_mm_design;
FT_Set_MM_Blend_Func set_mm_blend;
FT_Get_MM_Blend_Func get_mm_blend;
FT_Get_MM_Var_Func get_mm_var;
FT_Set_Var_Design_Func set_var_design;
FT_Get_Var_Design_Func get_var_design;
FT_Set_Named_Instance_Func set_named_instance;
FT_Get_Default_Named_Instance_Func get_default_named_instance;
FT_Set_MM_WeightVector_Func set_mm_weightvector;
FT_Get_MM_WeightVector_Func get_mm_weightvector;
/* for internal use; only needed for code sharing between modules */
FT_Construct_PS_Name_Func construct_ps_name;
FT_Var_Load_Delta_Set_Idx_Map_Func load_delta_set_idx_map;
FT_Var_Load_Item_Var_Store_Func load_item_var_store;
FT_Var_Get_Item_Delta_Func get_item_delta;
FT_Var_Done_Item_Var_Store_Func done_item_var_store;
FT_Var_Done_Delta_Set_Idx_Map_Func done_delta_set_idx_map;
FT_Get_Var_Blend_Func get_var_blend;
FT_Done_Blend_Func done_blend;
};
#define FT_DEFINE_SERVICE_MULTIMASTERSREC( class_, \
get_mm_, \
set_mm_design_, \
set_mm_blend_, \
get_mm_blend_, \
get_mm_var_, \
set_var_design_, \
get_var_design_, \
set_named_instance_, \
get_default_named_instance_, \
set_mm_weightvector_, \
get_mm_weightvector_, \
\
construct_ps_name_, \
load_delta_set_idx_map_, \
load_item_var_store_, \
get_item_delta_, \
done_item_var_store_, \
done_delta_set_idx_map_, \
get_var_blend_, \
done_blend_ ) \
static const FT_Service_MultiMastersRec class_ = \
{ \
get_mm_, \
set_mm_design_, \
set_mm_blend_, \
get_mm_blend_, \
get_mm_var_, \
set_var_design_, \
get_var_design_, \
set_named_instance_, \
get_default_named_instance_, \
set_mm_weightvector_, \
get_mm_weightvector_, \
\
construct_ps_name_, \
load_delta_set_idx_map_, \
load_item_var_store_, \
get_item_delta_, \
done_item_var_store_, \
done_delta_set_idx_map_, \
get_var_blend_, \
done_blend_ \
};
/* */
FT_END_HEADER
#endif /* SVMM_H_ */
/* END */

55
Example/include/freetype/internal/services/svotval.h
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/****************************************************************************
*
* svotval.h
*
* The FreeType OpenType validation service (specification).
*
* Copyright (C) 2004-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVOTVAL_H_
#define SVOTVAL_H_
#include <freetype/ftotval.h>
#include <freetype/internal/ftvalid.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_OPENTYPE_VALIDATE "opentype-validate"
typedef FT_Error
(*otv_validate_func)( FT_Face volatile face,
FT_UInt ot_flags,
FT_Bytes *base,
FT_Bytes *gdef,
FT_Bytes *gpos,
FT_Bytes *gsub,
FT_Bytes *jstf );
FT_DEFINE_SERVICE( OTvalidate )
{
otv_validate_func validate;
};
/* */
FT_END_HEADER
#endif /* SVOTVAL_H_ */
/* END */

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Example/include/freetype/internal/services/svpfr.h
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/****************************************************************************
*
* svpfr.h
*
* Internal PFR service functions (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPFR_H_
#define SVPFR_H_
#include <freetype/ftpfr.h>
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_PFR_METRICS "pfr-metrics"
typedef FT_Error
(*FT_PFR_GetMetricsFunc)( FT_Face face,
FT_UInt *aoutline,
FT_UInt *ametrics,
FT_Fixed *ax_scale,
FT_Fixed *ay_scale );
typedef FT_Error
(*FT_PFR_GetKerningFunc)( FT_Face face,
FT_UInt left,
FT_UInt right,
FT_Vector *avector );
typedef FT_Error
(*FT_PFR_GetAdvanceFunc)( FT_Face face,
FT_UInt gindex,
FT_Pos *aadvance );
FT_DEFINE_SERVICE( PfrMetrics )
{
FT_PFR_GetMetricsFunc get_metrics;
FT_PFR_GetKerningFunc get_kerning;
FT_PFR_GetAdvanceFunc get_advance;
};
FT_END_HEADER
#endif /* SVPFR_H_ */
/* END */

65
Example/include/freetype/internal/services/svpostnm.h
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/****************************************************************************
*
* svpostnm.h
*
* The FreeType PostScript name services (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPOSTNM_H_
#define SVPOSTNM_H_
#include <freetype/internal/ftserv.h>
FT_BEGIN_HEADER
/*
* A trivial service used to retrieve the PostScript name of a given font
* when available. The `get_name' field should never be `NULL`.
*
* The corresponding function can return `NULL` to indicate that the
* PostScript name is not available.
*
* The name is owned by the face and will be destroyed with it.
*/
#define FT_SERVICE_ID_POSTSCRIPT_FONT_NAME "postscript-font-name"
typedef const char*
(*FT_PsName_GetFunc)( FT_Face face );
FT_DEFINE_SERVICE( PsFontName )
{
FT_PsName_GetFunc get_ps_font_name;
};
#define FT_DEFINE_SERVICE_PSFONTNAMEREC( class_, get_ps_font_name_ ) \
static const FT_Service_PsFontNameRec class_ = \
{ \
get_ps_font_name_ \
};
/* */
FT_END_HEADER
#endif /* SVPOSTNM_H_ */
/* END */

66
Example/include/freetype/internal/services/svprop.h
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/****************************************************************************
*
* svprop.h
*
* The FreeType property service (specification).
*
* Copyright (C) 2012-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPROP_H_
#define SVPROP_H_
FT_BEGIN_HEADER
#define FT_SERVICE_ID_PROPERTIES "properties"
typedef FT_Error
(*FT_Properties_SetFunc)( FT_Module module,
const char* property_name,
const void* value,
FT_Bool value_is_string );
typedef FT_Error
(*FT_Properties_GetFunc)( FT_Module module,
const char* property_name,
void* value );
FT_DEFINE_SERVICE( Properties )
{
FT_Properties_SetFunc set_property;
FT_Properties_GetFunc get_property;
};
#define FT_DEFINE_SERVICE_PROPERTIESREC( class_, \
set_property_, \
get_property_ ) \
static const FT_Service_PropertiesRec class_ = \
{ \
set_property_, \
get_property_ \
};
/* */
FT_END_HEADER
#endif /* SVPROP_H_ */
/* END */

145
Example/include/freetype/internal/services/svpscmap.h
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/****************************************************************************
*
* svpscmap.h
*
* The FreeType PostScript charmap service (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPSCMAP_H_
#define SVPSCMAP_H_
#include <freetype/internal/ftobjs.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_POSTSCRIPT_CMAPS "postscript-cmaps"
/*
* Adobe glyph name to unicode value.
*/
typedef FT_UInt32
(*PS_Unicode_ValueFunc)( const char* glyph_name );
/*
* Macintosh name id to glyph name. `NULL` if invalid index.
*/
typedef const char*
(*PS_Macintosh_NameFunc)( FT_UInt name_index );
/*
* Adobe standard string ID to glyph name. `NULL` if invalid index.
*/
typedef const char*
(*PS_Adobe_Std_StringsFunc)( FT_UInt string_index );
/*
* Simple unicode -> glyph index charmap built from font glyph names table.
*/
typedef struct PS_UniMap_
{
FT_UInt32 unicode; /* bit 31 set: is glyph variant */
FT_UInt glyph_index;
} PS_UniMap;
typedef struct PS_UnicodesRec_* PS_Unicodes;
typedef struct PS_UnicodesRec_
{
FT_CMapRec cmap;
FT_UInt num_maps;
PS_UniMap* maps;
} PS_UnicodesRec;
/*
* A function which returns a glyph name for a given index. Returns
* `NULL` if invalid index.
*/
typedef const char*
(*PS_GetGlyphNameFunc)( FT_Pointer data,
FT_UInt string_index );
/*
* A function used to release the glyph name returned by
* PS_GetGlyphNameFunc, when needed
*/
typedef void
(*PS_FreeGlyphNameFunc)( FT_Pointer data,
const char* name );
typedef FT_Error
(*PS_Unicodes_InitFunc)( FT_Memory memory,
PS_Unicodes unicodes,
FT_UInt num_glyphs,
PS_GetGlyphNameFunc get_glyph_name,
PS_FreeGlyphNameFunc free_glyph_name,
FT_Pointer glyph_data );
typedef FT_UInt
(*PS_Unicodes_CharIndexFunc)( PS_Unicodes unicodes,
FT_UInt32 unicode );
typedef FT_UInt
(*PS_Unicodes_CharNextFunc)( PS_Unicodes unicodes,
FT_UInt32 *unicode );
FT_DEFINE_SERVICE( PsCMaps )
{
PS_Unicode_ValueFunc unicode_value;
PS_Unicodes_InitFunc unicodes_init;
PS_Unicodes_CharIndexFunc unicodes_char_index;
PS_Unicodes_CharNextFunc unicodes_char_next;
PS_Macintosh_NameFunc macintosh_name;
PS_Adobe_Std_StringsFunc adobe_std_strings;
const unsigned short* adobe_std_encoding;
const unsigned short* adobe_expert_encoding;
};
#define FT_DEFINE_SERVICE_PSCMAPSREC( class_, \
unicode_value_, \
unicodes_init_, \
unicodes_char_index_, \
unicodes_char_next_, \
macintosh_name_, \
adobe_std_strings_, \
adobe_std_encoding_, \
adobe_expert_encoding_ ) \
static const FT_Service_PsCMapsRec class_ = \
{ \
unicode_value_, unicodes_init_, \
unicodes_char_index_, unicodes_char_next_, macintosh_name_, \
adobe_std_strings_, adobe_std_encoding_, adobe_expert_encoding_ \
};
/* */
FT_END_HEADER
#endif /* SVPSCMAP_H_ */
/* END */

86
Example/include/freetype/internal/services/svpsinfo.h
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/****************************************************************************
*
* svpsinfo.h
*
* The FreeType PostScript info service (specification).
*
* Copyright (C) 2003-2023 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
* modified, and distributed under the terms of the FreeType project
* license, LICENSE.TXT. By continuing to use, modify, or distribute
* this file you indicate that you have read the license and
* understand and accept it fully.
*
*/
#ifndef SVPSINFO_H_
#define SVPSINFO_H_
#include <freetype/internal/ftserv.h>
#include <freetype/internal/t1types.h>
FT_BEGIN_HEADER
#define FT_SERVICE_ID_POSTSCRIPT_INFO "postscript-info"
typedef FT_Error
(*PS_GetFontInfoFunc)( FT_Face face,
PS_FontInfoRec* afont_info );
typedef FT_Error
(*PS_GetFontExtraFunc)( FT_Face face,
PS_FontExtraRec* afont_extra );
typedef FT_Int
(*PS_HasGlyphNamesFunc)( FT_Face face );
typedef FT_Error
(*PS_GetFontPrivateFunc)( FT_Face face,
PS_PrivateRec* afont_private );
typedef FT_Long
(*PS_GetFontValueFunc)( FT_Face face,
PS_Dict_Keys key,
FT_UInt idx,
void *value,
FT_Long value_len );
FT_DEFINE_SERVICE( PsInfo )
{
PS_GetFontInfoFunc ps_get_font_info;
PS_GetFontExtraFunc ps_get_font_extra;
PS_HasGlyphNamesFunc ps_has_glyph_names;
PS_GetFontPrivateFunc ps_get_font_private;
PS_GetFontValueFunc ps_get_font_value;
};
#define FT_DEFINE_SERVICE_PSINFOREC( class_, \
get_font_info_, \
ps_get_font_extra_, \
has_glyph_names_, \
get_font_private_, \
get_font_value_ ) \
static const FT_Service_PsInfoRec class_ = \
{ \
get_font_info_, ps_get_font_extra_, has_glyph_names_, \
get_font_private_, get_font_value_ \
};
/* */
FT_END_HEADER
#endif /* SVPSINFO_H_ */
/* END */

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