// Copyright 2011 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.

#pragma once

#include "VideoBackends/D3D/TextureEncoder.h"

#include "VideoCommon/TextureCacheBase.h"

struct ID3D11Texture2D;
struct ID3D11RenderTargetView;
struct ID3D11Buffer;
struct ID3D11InputLayout;
struct ID3D11VertexShader;
struct ID3D11PixelShader;
struct ID3D11ClassLinkage;
struct ID3D11ClassInstance;
struct ID3D11BlendState;
struct ID3D11DepthStencilState;
struct ID3D11RasterizerState;
struct ID3D11SamplerState;

namespace DX11
{
class PSTextureEncoder : public TextureEncoder
{
public:
  PSTextureEncoder();

  void Init();
  void Shutdown();
  void Encode(u8* dst, u32 format, u32 native_width, u32 bytes_per_row, u32 num_blocks_y,
              u32 memory_stride, PEControl::PixelFormat srcFormat, const EFBRectangle& srcRect,
              bool isIntensity, bool scaleByHalf);

private:
  bool m_ready;

  ID3D11Texture2D* m_out;
  ID3D11RenderTargetView* m_outRTV;
  ID3D11Texture2D* m_outStage;
  ID3D11Buffer* m_encodeParams;

  ID3D11PixelShader* SetStaticShader(unsigned int dstFormat, PEControl::PixelFormat srcFormat,
                                     bool isIntensity, bool scaleByHalf);

  typedef unsigned int ComboKey;  // Key for a shader combination

  ComboKey MakeComboKey(unsigned int dstFormat, PEControl::PixelFormat srcFormat, bool isIntensity,
                        bool scaleByHalf)
  {
    return (dstFormat << 4) | (static_cast<int>(srcFormat) << 2) | (isIntensity ? (1 << 1) : 0) |
           (scaleByHalf ? (1 << 0) : 0);
  }

  typedef std::map<ComboKey, ID3D11PixelShader*> ComboMap;

  ComboMap m_staticShaders;
};
}
