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110 lines
2.7 KiB
110 lines
2.7 KiB
1 year ago
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/*
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MONOTONE module for SoLoud audio engine
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Copyright (c) 2013-2020 Jari Komppa
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*/
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#ifndef MONOTONE_H
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#define MONOTONE_H
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#include "soloud.h"
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#include "soloud_misc.h"
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namespace SoLoud
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{
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class Monotone;
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class File;
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struct MonotoneSong
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{
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char *mTitle;
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char *mComment;
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unsigned char mVersion; // must be 1
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unsigned char mTotalPatterns;
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unsigned char mTotalTracks;
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unsigned char mCellSize; // must be 2 for version 1
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unsigned char mOrder[256];
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unsigned int *mPatternData; // 64 rows * mTotalPatterns * mTotalTracks
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};
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struct MonotoneChannel
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{
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int mEnabled;
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int mActive;
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int mFreq[3];
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int mPortamento;
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int mArpCounter;
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int mArp;
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int mLastNote;
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int mPortamentoToNote;
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int mVibrato;
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int mVibratoIndex;
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int mVibratoDepth;
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int mVibratoSpeed;
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};
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struct MonotoneHardwareChannel
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{
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int mEnabled;
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float mSamplePos;
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float mSamplePosInc;
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};
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class MonotoneInstance : public AudioSourceInstance
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{
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Monotone *mParent;
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public:
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MonotoneChannel mChannel[12];
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MonotoneHardwareChannel mOutput[12];
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int mNextChannel;
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int mTempo; // ticks / row. Tick = 60hz. Default 4.
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int mOrder;
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int mRow;
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int mSampleCount;
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int mRowTick;
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MonotoneInstance(Monotone *aParent);
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virtual unsigned int getAudio(float *aBuffer, unsigned int aSamples, unsigned int aBufferSize);
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virtual bool hasEnded();
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};
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class Monotone : public AudioSource
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{
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public:
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int mNotesHz[800];
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int mVibTable[32];
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int mHardwareChannels;
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int mWaveform;
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MonotoneSong mSong;
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Monotone();
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~Monotone();
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result setParams(int aHardwareChannels, int aWaveform = SoLoud::Misc::WAVE_SQUARE);
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result load(const char *aFilename);
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result loadMem(const unsigned char *aMem, unsigned int aLength, bool aCopy = false, bool aTakeOwnership = true);
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result loadFile(File *aFile);
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virtual AudioSourceInstance *createInstance();
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public:
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void clear();
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};
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};
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#endif
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