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#pragma once
#include <mbgl/gl/program.hpp>
#include <cassert>
namespace mbgl {
enum class ProgramDefines : bool {
None = false,
Overdraw = true,
};
template <class Shaders, class Primitive, class Attributes, class Uniforms>
class Program : public gl::Program<Primitive, Attributes, Uniforms> {
public:
using ParentType = gl::Program<Primitive, Attributes, Uniforms>;
Program(gl::Context& context, ProgramDefines defines)
: ParentType(context, Shaders::vertexSource, fragmentSource(defines))
{}
static std::string fragmentSource(ProgramDefines defines) {
std::string fragment = Shaders::fragmentSource;
if (defines == ProgramDefines::Overdraw) {
assert(fragment.find("#ifdef OVERDRAW_INSPECTOR") != std::string::npos);
fragment.replace(fragment.find_first_of('\n'), 1, "\n#define OVERDRAW_INSPECTOR\n");
}
return fragment;
}
};
} // namespace mbgl
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