//
//  helper.hpp
//  graphics
//
//  Created by Sam Jaffe on 5/18/19.
//  Copyright © 2019 Sam Jaffe. All rights reserved.
//

#pragma once

#include <string>
#include <utility>

#include "game/graphics/graphics_fwd.h"
#include "game/math/math_fwd.hpp"
#include "vector/vector.hpp"

namespace graphics {
  namespace textures {
    enum class format : unsigned int { RGB, RGBA };
    struct external_data {
      external_data(std::string const & abs_path);
      ~external_data();
      format color;
      math::vec2i size;
      void * buffer;
    };
  }
  namespace shaders {
    enum class type : unsigned int { FRAGMENT, VERTEX };
  }
  namespace materials {
    enum class uniform : unsigned int { NORMAL, DIFFUSE, SPECULAR };
  }
}

namespace std {
  template <> struct hash<graphics::shaders::type> {
    std::size_t operator()(graphics::shaders::type tp) const {
      return std::hash<unsigned int>()(static_cast<unsigned int>(tp));
    }
  };

  template <> struct hash<graphics::materials::uniform> {
    std::size_t operator()(graphics::materials::uniform uf) const {
      return std::hash<unsigned int>()(static_cast<unsigned int>(uf));
    }
  };
}