/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef mozilla_gfx_layers_d3d11_DeviceAttachmentsD3D11_h
#define mozilla_gfx_layers_d3d11_DeviceAttachmentsD3D11_h

#include "mozilla/EnumeratedArray.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/DeviceManagerDx.h"
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/layers/SyncObject.h"
#include <d3d11.h>
#include <dxgi1_2.h>

namespace mozilla {
namespace layers {

struct ShaderBytes;

class DeviceAttachmentsD3D11
{
  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DeviceAttachmentsD3D11);

public:
  static RefPtr<DeviceAttachmentsD3D11> Create(ID3D11Device* aDevice);

  bool InitBlendShaders();
  bool EnsureTriangleBuffer(size_t aNumTriangles);

  bool IsValid() const {
    return mInitialized;
  }
  const nsCString& GetFailureId() const {
    MOZ_ASSERT(!IsValid());
    return mInitFailureId;
  }

  typedef EnumeratedArray<MaskType, MaskType::NumMaskTypes, RefPtr<ID3D11VertexShader>>
          VertexShaderArray;
  typedef EnumeratedArray<MaskType, MaskType::NumMaskTypes, RefPtr<ID3D11PixelShader>>
          PixelShaderArray;

  RefPtr<ID3D11InputLayout> mInputLayout;
  RefPtr<ID3D11InputLayout> mDynamicInputLayout;

  RefPtr<ID3D11Buffer> mVertexBuffer;
  RefPtr<ID3D11Buffer> mDynamicVertexBuffer;

  VertexShaderArray mVSQuadShader;
  VertexShaderArray mVSQuadBlendShader;

  VertexShaderArray mVSDynamicShader;
  VertexShaderArray mVSDynamicBlendShader;

  PixelShaderArray mSolidColorShader;
  PixelShaderArray mRGBAShader;
  PixelShaderArray mRGBShader;
  PixelShaderArray mYCbCrShader;
  PixelShaderArray mNV12Shader;
  PixelShaderArray mComponentAlphaShader;
  PixelShaderArray mBlendShader;
  RefPtr<ID3D11Buffer> mPSConstantBuffer;
  RefPtr<ID3D11Buffer> mVSConstantBuffer;
  RefPtr<ID3D11RasterizerState> mRasterizerState;
  RefPtr<ID3D11SamplerState> mLinearSamplerState;
  RefPtr<ID3D11SamplerState> mPointSamplerState;

  RefPtr<ID3D11BlendState> mPremulBlendState;
  RefPtr<ID3D11BlendState> mNonPremulBlendState;
  RefPtr<ID3D11BlendState> mComponentBlendState;
  RefPtr<ID3D11BlendState> mDisabledBlendState;

  RefPtr<SyncObjectHost> mSyncObject;

  void SetDeviceReset() {
    mDeviceReset = true;
  }
  bool IsDeviceReset() const {
    return mDeviceReset;
  }

private:
  explicit DeviceAttachmentsD3D11(ID3D11Device* device);
  ~DeviceAttachmentsD3D11();

  bool Initialize();
  bool CreateShaders();
  bool InitSyncObject();

  void InitVertexShader(const ShaderBytes& aShader, VertexShaderArray& aArray, MaskType aMaskType) {
    InitVertexShader(aShader, getter_AddRefs(aArray[aMaskType]));
  }
  void InitPixelShader(const ShaderBytes& aShader, PixelShaderArray& aArray, MaskType aMaskType) {
    InitPixelShader(aShader, getter_AddRefs(aArray[aMaskType]));
  }

  void InitVertexShader(const ShaderBytes& aShader, ID3D11VertexShader** aOut);
  void InitPixelShader(const ShaderBytes& aShader, ID3D11PixelShader** aOut);

  bool Failed(HRESULT hr, const char* aContext);

private:
  size_t mMaximumTriangles;

  // Only used during initialization.
  RefPtr<ID3D11Device> mDevice;
  bool mContinueInit;
  bool mInitialized;
  bool mDeviceReset;
  nsCString mInitFailureId;
};

} // namespace layers
} // namespace mozilla

#endif // mozilla_gfx_layers_d3d11_DeviceAttachmentsD3D11_h
