Program::Program(map<string, GLint> params, string shader_name) : params(params) {
if ((vs = create_shader((shader_name+".v.glsl").c_str(), GL_VERTEX_SHADER)) == 0) exit(-1);
if ((fs = create_shader((shader_name+".f.glsl").c_str(), GL_FRAGMENT_SHADER)) == 0) exit(-1);
GLint compile_ok = GL_FALSE, link_ok = GL_FALSE;
id = glCreateProgram();
glAttachShader(id, vs);
glAttachShader(id, fs);
glLinkProgram(id);
glGetProgramiv(id, GL_LINK_STATUS, &link_ok);
if (!link_ok) {
fprintf(stderr, "glLinkProgram:");
print_log(id);
exit(-1);
}
for(auto& kv : this->params){
if(kv.first.substr(0, 7) == "uniform"){
bindUniform(kv.first.substr(8).c_str(), kv.second, id); /*uniform*/
}
else{
bindAttribute(kv.first.substr(10).c_str(), kv.second, id); /*attribute*/
}
}
}
virtual void bindUniform( ShaderLocation *location, size_t value ) { bindUniform( location, ( int ) value ); }
virtual void bindUniform( ShaderLocation *location, bool value ) { bindUniform( location, value ? 1 : 0 ); }
