void GSShaderOGL::UseProgram()
{
if (GLState::dirty_prog) {
if (!GLLoader::found_GL_ARB_separate_shader_objects) {
hash_map<uint64, GLuint >::iterator it;
// Note: shader are integer lookup pointer. They start from 1 and incr
// every time you create a new shader OR a new program.
// Note2: vs & gs are precompiled at startup. FGLRX and radeon got value < 128. GS has only 2 programs
// We migth be able to pack the value in a 32bits int
// I would need to check the behavior on Nvidia (pause/resume).
uint64 sel = (uint64)GLState::vs << 40 | (uint64)GLState::gs << 20 | GLState::ps;
it = m_single_prog.find(sel);
if (it == m_single_prog.end()) {
GLState::program = LinkNewProgram();
m_single_prog[sel] = GLState::program;
ValidateProgram(GLState::program);
glUseProgram(GLState::program);
} else {
GLuint prog = it->second;
if (prog != GLState::program) {
GLState::program = prog;
glUseProgram(GLState::program);
}
}
}
}
GLState::dirty_prog = false;
}
void GSShaderOGL::UseProgram()
{
if (GLState::dirty_prog) {
if (!GLLoader::found_GL_ARB_separate_shader_objects) {
GLState::dirty_subroutine_vs = true;
GLState::dirty_subroutine_ps = true;
GLState::dirty_ressources = true;
hash_map<uint64, GLuint >::iterator it;
// Note: shader are integer lookup pointer. They start from 1 and incr
// every time you create a new shader OR a new program.
// Note2: vs & gs are precompiled at startup. FGLRX and radeon got value < 128.
// We migth be able to pack the value in a 32bits int
// I would need to check the behavior on Nvidia (pause/resume).
uint64 sel = (uint64)GLState::vs << 40 | (uint64)GLState::gs << 20 | GLState::ps;
it = m_single_prog.find(sel);
if (it == m_single_prog.end()) {
GLState::program = LinkNewProgram();
m_single_prog[sel] = GLState::program;
ValidateProgram(GLState::program);
gl_UseProgram(GLState::program);
// warning it must be done after the "setup" of the program
SetupUniform();
} else {
GLuint prog = it->second;
if (prog != GLState::program) {
GLState::program = prog;
gl_UseProgram(GLState::program);
}
}
} else {
ValidatePipeline(m_pipeline);
SetupUniform();
}
}
SetupRessources();
SetupSubroutineUniform();
GLState::dirty_prog = false;
}