kc3-lang/angle/src/libANGLE/renderer/d3d/d3d9/TextureStorage9.h

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• Author : Gregoire Payen de La Garanderie
  Date : 2015-04-14 11:11:12
  Hash : 752ce192
  Message : D3D11: Use DX generateMips to generate mipmaps whenever possible. BUG=angleproject:974 Change-Id: I95937fe7a0833de77c52f838ebb3ecba55dfbf8a Reviewed-on: https://chromium-review.googlesource.com/265640 Tested-by: Gregoire Payen de La Garanderie <Gregory.Payen@imgtec.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/libANGLE/renderer/d3d/d3d9/TextureStorage9.h

• //
  // Copyright (c) 2012-2013 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  // TextureStorage9.h: Defines the abstract rx::TextureStorage9 class and its concrete derived
  // classes TextureStorage9_2D and TextureStorage9_Cube, which act as the interface to the
  // D3D9 texture.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D9_TEXTURESTORAGE9_H_
  #define LIBANGLE_RENDERER_D3D_D3D9_TEXTURESTORAGE9_H_
  
  #include "libANGLE/renderer/d3d/TextureStorage.h"
  #include "common/debug.h"
  
  namespace rx
  {
  class Renderer9;
  class SwapChain9;
  class RenderTargetD3D;
  class RenderTarget9;
  
  class TextureStorage9 : public TextureStorage
  {
    public:
      virtual ~TextureStorage9();
  
      static DWORD GetTextureUsage(GLenum internalformat, bool renderTarget);
  
      D3DPOOL getPool() const;
      DWORD getUsage() const;
  
      virtual gl::Error getBaseTexture(IDirect3DBaseTexture9 **outTexture) = 0;
      virtual gl::Error getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT) = 0;
  
      virtual int getTopLevel() const;
      virtual bool isRenderTarget() const;
      virtual bool isManaged() const;
      bool supportsNativeMipmapFunction() const override;
      virtual int getLevelCount() const;
  
      virtual gl::Error setData(const gl::ImageIndex &index, ImageD3D *image, const gl::Box *destBox, GLenum type,
                                const gl::PixelUnpackState &unpack, const uint8_t *pixelData);
  
    protected:
      int mTopLevel;
      size_t mMipLevels;
      size_t mTextureWidth;
      size_t mTextureHeight;
      GLenum mInternalFormat;
      D3DFORMAT mTextureFormat;
  
      Renderer9 *mRenderer;
  
      TextureStorage9(Renderer9 *renderer, DWORD usage);
  
    private:
      const DWORD mD3DUsage;
      const D3DPOOL mD3DPool;
  };
  
  class TextureStorage9_2D : public TextureStorage9
  {
    public:
      TextureStorage9_2D(Renderer9 *renderer, SwapChain9 *swapchain);
      TextureStorage9_2D(Renderer9 *renderer, GLenum internalformat, bool renderTarget, GLsizei width, GLsizei height, int levels);
      virtual ~TextureStorage9_2D();
  
      gl::Error getSurfaceLevel(int level, bool dirty, IDirect3DSurface9 **outSurface);
      virtual gl::Error getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT);
      virtual gl::Error getBaseTexture(IDirect3DBaseTexture9 **outTexture);
      virtual gl::Error generateMipmap(const gl::ImageIndex &sourceIndex, const gl::ImageIndex &destIndex);
      virtual gl::Error copyToStorage(TextureStorage *destStorage);
  
    private:
      IDirect3DTexture9 *mTexture;
      RenderTarget9 *mRenderTarget;
  };
  
  class TextureStorage9_Cube : public TextureStorage9
  {
    public:
      TextureStorage9_Cube(Renderer9 *renderer, GLenum internalformat, bool renderTarget, int size, int levels, bool hintLevelZeroOnly);
      virtual ~TextureStorage9_Cube();
  
      gl::Error getCubeMapSurface(GLenum faceTarget, int level, bool dirty, IDirect3DSurface9 **outSurface);
      virtual gl::Error getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT);
      virtual gl::Error getBaseTexture(IDirect3DBaseTexture9 **outTexture);
      virtual gl::Error generateMipmap(const gl::ImageIndex &sourceIndex, const gl::ImageIndex &destIndex);
      virtual gl::Error copyToStorage(TextureStorage *destStorage);
  
    private:
      static const size_t CUBE_FACE_COUNT = 6;
  
      IDirect3DCubeTexture9 *mTexture;
      RenderTarget9 *mRenderTarget[CUBE_FACE_COUNT];
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_D3D9_TEXTURESTORAGE9_H_