ShaderCache.hpp

#pragma once
#include <Gfx/Graph/RenderState.hpp>
 
#include <score/gfx/OpenGL.hpp>
#include <score/tools/std/StringHash.hpp>
 
#include <ossia/detail/hash_map.hpp>
 
#if __has_include(<QtShaderTools/rhi/qshaderbaker.h>)
#include <QtShaderTools/rhi/qshaderbaker.h>
#else
#include <QtShaderTools/private/qshaderbaker_p.h>
#endif
 
namespace score::gfx
{
struct ShaderCache
{
public:
  static const std::pair<QShader, QString>&
  get(const RenderState& v, const QByteArray& shader, QShader::Stage stage);
  static const std::pair<QShader, QString>&
  get(GraphicsApi api, const QShaderVersion& v, const QByteArray& shader,
      QShader::Stage stage);
 
private:
  ShaderCache();
 
  struct Baker
  {
    explicit Baker(GraphicsApi api, const QShaderVersion& v);
 
    GraphicsApi api;
    QShaderVersion version;
    QShaderBaker baker;
    ossia::hash_map<QByteArray, std::pair<QShader, QString>> shaders;
  };
 
  std::vector<std::unique_ptr<Baker>> m_bakers;
};
}