// ShaderData
ShaderData::ShaderData(const string& _fileName) {
fileName = _fileName;
program = glCreateProgram();
if (program == 0) {
Debug::LogError("Shader program error. File '" + fileName + " Error: Cannot create the shader program");
return;
}
if (s_supportedOpenGLLevel == 0) {
int majorVersion;
int minorVersion;
glGetIntegerv(GL_MAJOR_VERSION, &majorVersion);
glGetIntegerv(GL_MINOR_VERSION, &minorVersion);
s_supportedOpenGLLevel = majorVersion * 100 + minorVersion * 10;
if (s_supportedOpenGLLevel >= 330) {
std::ostringstream convert;
convert << s_supportedOpenGLLevel;
s_glslVersion = convert.str();
} else if (s_supportedOpenGLLevel >= 320) {
s_glslVersion = "150";
} else if (s_supportedOpenGLLevel >= 310) {
s_glslVersion = "140";
} else if (s_supportedOpenGLLevel >= 300) {
s_glslVersion = "130";
} else if (s_supportedOpenGLLevel >= 210) {
s_glslVersion = "120";
} else if (s_supportedOpenGLLevel >= 200) {
s_glslVersion = "110";
} else {
fprintf(stderr, "Error: OpenGL Version %d.%d does not support shaders.\n", majorVersion, minorVersion);
exit(1);
}
}
string shaderText = LoadShader(fileName + ".glsl");
string vertexShaderText = "#version " + s_glslVersion + "\n#define VS_BUILD\n#define GLSL_VERSION " + s_glslVersion + "\n" + shaderText;
string fragmentShaderText = "#version " + s_glslVersion + "\n#define FS_BUILD\n#define GLSL_VERSION " + s_glslVersion + "\n" + shaderText;
AddVertexShader(vertexShaderText);
AddFragmentShader(fragmentShaderText);
string attributeKeyword = "uniform";
AddAllAttributes(vertexShaderText, attributeKeyword);
CompileShader();
AddShaderUniforms(shaderText);
}
//--------------------------------------------------------------------------------
// Constructors/Destructors
//--------------------------------------------------------------------------------
ShaderData::ShaderData(const std::string& fileName)
{
std::string actualFileName = fileName;
#if PROFILING_DISABLE_SHADING != 0
actualFileName = "nullShader";
#endif
m_program = glCreateProgram();
if (m_program == 0)
{
fprintf(stderr, "Error creating shader program\n");
exit(1);
}
if(s_supportedOpenGLLevel == 0)
{
int majorVersion;
int minorVersion;
glGetIntegerv(GL_MAJOR_VERSION, &majorVersion);
glGetIntegerv(GL_MINOR_VERSION, &minorVersion);
s_supportedOpenGLLevel = majorVersion * 100 + minorVersion * 10;
if(s_supportedOpenGLLevel >= 330)
{
std::ostringstream convert;
convert << s_supportedOpenGLLevel;
s_glslVersion = convert.str();
}
else if(s_supportedOpenGLLevel >= 320)
{
s_glslVersion = "150";
}
else if(s_supportedOpenGLLevel >= 310)
{
s_glslVersion = "140";
}
else if(s_supportedOpenGLLevel >= 300)
{
s_glslVersion = "130";
}
else if(s_supportedOpenGLLevel >= 210)
{
s_glslVersion = "120";
}
else if(s_supportedOpenGLLevel >= 200)
{
s_glslVersion = "110";
}
else
{
fprintf(stderr, "Error: OpenGL Version %d.%d does not support shaders.\n", majorVersion, minorVersion);
exit(1);
}
}
std::string shaderText = LoadShader(actualFileName + ".glsl");
std::string vertexShaderText = "#version " + s_glslVersion + "\n#define VS_BUILD\n#define GLSL_VERSION " + s_glslVersion + "\n" + shaderText;
std::string fragmentShaderText = "#version " + s_glslVersion + "\n#define FS_BUILD\n#define GLSL_VERSION " + s_glslVersion + "\n" + shaderText;
AddVertexShader(vertexShaderText);
AddFragmentShader(fragmentShaderText);
std::string attributeKeyword = "attribute";
AddAllAttributes(vertexShaderText, attributeKeyword);
CompileShader();
AddShaderUniforms(shaderText);
}