kc3-lang/angle/src/libANGLE/renderer/d3d/d3d11/Image11.h

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• Hash : 80616218
  Author :
  Date : 2017-05-17T15:40:03
  

  Support CHROMIUM_copy_texture for all formats on D3D11.
  
  Adds a CPU readback and conversion path when the destination texture is
  not renderable.
  
  BUG=angleproject:1932
  
  Change-Id: I71461ca991dc10dd636ff38e1ae20db2be0f8d63
  Reviewed-on: https://chromium-review.googlesource.com/508308
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d11/Image11.h

• //
  // Copyright (c) 2012 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.
  //
  
  // Image11.h: Defines the rx::Image11 class, which acts as the interface to
  // the actual underlying resources of a Texture
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D11_IMAGE11_H_
  #define LIBANGLE_RENDERER_D3D_D3D11_IMAGE11_H_
  
  #include "common/debug.h"
  #include "libANGLE/ImageIndex.h"
  #include "libANGLE/renderer/d3d/ImageD3D.h"
  #include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
  
  namespace gl
  {
  class Framebuffer;
  }
  
  namespace rx
  {
  class Renderer11;
  class TextureHelper11;
  class TextureStorage11;
  struct Renderer11DeviceCaps;
  
  class Image11 : public ImageD3D
  {
    public:
      Image11(Renderer11 *renderer);
      virtual ~Image11();
  
      static gl::Error generateMipmap(Image11 *dest,
                                      Image11 *src,
                                      const Renderer11DeviceCaps &rendererCaps);
      static gl::Error copyImage(Image11 *dest,
                                 Image11 *source,
                                 const gl::Rectangle &sourceRect,
                                 const gl::Offset &destOffset,
                                 bool unpackFlipY,
                                 bool unpackPremultiplyAlpha,
                                 bool unpackUnmultiplyAlpha,
                                 const Renderer11DeviceCaps &rendererCaps);
  
      virtual bool isDirty() const;
  
      virtual gl::Error copyToStorage(TextureStorage *storage, const gl::ImageIndex &index, const gl::Box &region);
  
      bool redefine(GLenum target, GLenum internalformat, const gl::Extents &size, bool forceRelease) override;
  
      DXGI_FORMAT getDXGIFormat() const;
  
      gl::Error loadData(const gl::Box &area,
                         const gl::PixelUnpackState &unpack,
                         GLenum type,
                         const void *input,
                         bool applySkipImages) override;
      gl::Error loadCompressedData(const gl::Box &area, const void *input) override;
  
      gl::Error copyFromTexStorage(const gl::ImageIndex &imageIndex, TextureStorage *source) override;
      gl::Error copyFromFramebuffer(const gl::Offset &destOffset,
                                    const gl::Rectangle &sourceArea,
                                    const gl::Framebuffer *source) override;
  
      gl::Error recoverFromAssociatedStorage();
      void verifyAssociatedStorageValid(TextureStorage11 *textureStorage) const;
      void disassociateStorage();
  
    protected:
      gl::Error map(D3D11_MAP mapType, D3D11_MAPPED_SUBRESOURCE *map);
      void unmap();
  
    private:
      gl::Error copyWithoutConversion(const gl::Offset &destOffset,
                                      const gl::Box &sourceArea,
                                      const TextureHelper11 &textureHelper,
                                      UINT sourceSubResource);
  
      gl::Error getStagingTexture(const TextureHelper11 **outStagingTexture,
                                  unsigned int *outSubresourceIndex);
      gl::Error createStagingTexture();
      void releaseStagingTexture();
  
      Renderer11 *mRenderer;
  
      DXGI_FORMAT mDXGIFormat;
      TextureHelper11 mStagingTexture;
      unsigned int mStagingSubresource;
  
      bool mRecoverFromStorage;
      TextureStorage11 *mAssociatedStorage;
      gl::ImageIndex mAssociatedImageIndex;
      unsigned int mRecoveredFromStorageCount;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_D3D11_IMAGE11_H_
  

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