bool CgGLShader::initialize(const ResourcePtr& resource, const ShaderDesc& desc) {
CGprofile profile;
mDesc = desc;
switch (desc.type) {
case ukn::ST_FragmentShader:
profile = cgGLGetLatestProfile(CG_GL_FRAGMENT);
break;
case ukn::ST_VertexShader:
profile = cgGLGetLatestProfile(CG_GL_VERTEX);
break;
case ukn::ST_GeometryShader:
profile = cgGLGetLatestProfile(CG_GL_GEOMETRY);
break;
}
StreamPtr stream = resource->readIntoMemory();
if(!stream)
return false;
MemoryStream* memStream = ((MemoryStream*)stream.get());
std::string content(memStream->data(), memStream->data() + memStream->size());
mProgram = cgCreateProgram(mContext,
CG_SOURCE,
content.c_str(),
profile,
desc.entry.c_str(),
cgGLGetOptimalOptions(profile));
if(_check_error(mContext)) {
cgGLLoadProgram(mProgram);
mProfile = profile;
return _check_error(mContext);
}
return false;;
}
bool CgShaderProgramGL::compileCg(
const io::stringc &SourceCodeString, const io::stringc &EntryPoint, const c8** CompilerOptions)
{
if (!createProgram(SourceCodeString, EntryPoint, CompilerOptions ? CompilerOptions : cgGLGetOptimalOptions(cgProfile_)))
return false;
cgGLSetOptimalOptions(cgProfile_);
cgGLLoadProgram(cgProgram_);
return !CgShaderContext::checkForError("shader program loading");
}
