You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
74 lines
2.9 KiB
74 lines
2.9 KiB
#pragma once
|
|
#include <string>
|
|
#include <fstream>
|
|
#include <GL/glew.h>
|
|
#include "ShaderError.h"
|
|
|
|
class utils{
|
|
inline static std::string readShaderSource(const char *filePath){
|
|
std::string content;
|
|
std::ifstream fileStream(filePath, std::ios::in);
|
|
std::string line = "";
|
|
if(fileStream.fail()){
|
|
std::cout<<"Could not open shader "<<filePath<<"!"<<std::endl;
|
|
throw;
|
|
}
|
|
while (fileStream.good()) {
|
|
getline(fileStream, line);
|
|
content.append(line + "\n");
|
|
}
|
|
fileStream.close();
|
|
return content;
|
|
}
|
|
inline static void CompileShader(GLuint shader,std::string type){
|
|
GLint compiled;
|
|
glCompileShader(shader);
|
|
ErrorCheck::checkOpenGLError();
|
|
glGetShaderiv(shader,GL_COMPILE_STATUS,&compiled);
|
|
if(compiled!=1){
|
|
std::cout<<type<<" Compilation Failed!"<<std::endl;
|
|
ErrorCheck::printShaderLog(shader);
|
|
throw;
|
|
}
|
|
}
|
|
inline static void CreateShader(GLuint type,std::string shaderName,const char*source,GLuint vfProgram){
|
|
if(source!=nullptr){
|
|
GLuint vShader=glCreateShader(type);
|
|
std::string shaderFile=readShaderSource(source);
|
|
const char*vertShaderSrc=shaderFile.c_str();
|
|
glShaderSource(vShader,1,&vertShaderSrc,NULL);
|
|
CompileShader(vShader,shaderName);
|
|
glAttachShader(vfProgram,vShader);
|
|
}
|
|
};
|
|
public:
|
|
inline static GLuint createShaderProgram(const char*vertex,const char*fragment){
|
|
return createShaderProgram(vertex,nullptr,nullptr,nullptr,fragment);
|
|
}
|
|
inline static GLuint createShaderProgram(const char*vertex,const char*geometry,const char*fragment){
|
|
return createShaderProgram(vertex,nullptr,nullptr,geometry,fragment);
|
|
}
|
|
inline static GLuint createShaderProgram(const char*vertex,const char*tesselationCS,const char*tesselationES,const char*fragment){
|
|
return createShaderProgram(vertex,tesselationCS,tesselationES,nullptr,fragment);
|
|
}
|
|
inline static GLuint createShaderProgram(const char*vertex,const char*tesselationCS,const char*tesselationES,const char*geometry,const char*fragment){
|
|
|
|
GLuint vfProgram=glCreateProgram();
|
|
|
|
CreateShader(GL_VERTEX_SHADER,"Vertex",vertex,vfProgram);
|
|
CreateShader(GL_FRAGMENT_SHADER,"Fragment",fragment,vfProgram);
|
|
CreateShader(GL_TESS_CONTROL_SHADER,"Tesselation Control",tesselationCS,vfProgram);
|
|
CreateShader(GL_TESS_EVALUATION_SHADER,"Tesselation Evaluation",tesselationES,vfProgram);
|
|
CreateShader(GL_GEOMETRY_SHADER,"Geometry",geometry,vfProgram);
|
|
|
|
GLint linked;
|
|
glLinkProgram(vfProgram);
|
|
ErrorCheck::checkOpenGLError();
|
|
glGetProgramiv(vfProgram,GL_LINK_STATUS,&linked);
|
|
if(linked!=1){
|
|
std::cout<<"Linking Failed!"<<std::endl;
|
|
ErrorCheck::printProgramLog(vfProgram);
|
|
}
|
|
return vfProgram;
|
|
}
|
|
}; |