kc3-lang/angle/src/libANGLE/renderer/d3d/TextureStorage.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/TextureStorage.h

• //
  // Copyright (c) 2002-2013 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.
  //
  
  // TextureStorage.h: Defines the abstract rx::TextureStorage class.
  
  #ifndef LIBANGLE_RENDERER_D3D_TEXTURESTORAGE_H_
  #define LIBANGLE_RENDERER_D3D_TEXTURESTORAGE_H_
  
  #include "libANGLE/Error.h"
  
  #include "common/debug.h"
  #include "libANGLE/Error.h"
  
  #include <GLES2/gl2.h>
  #include <stdint.h>
  
  namespace gl
  {
  struct ImageIndex;
  struct Box;
  struct PixelUnpackState;
  }
  
  namespace rx
  {
  class SwapChainD3D;
  class RenderTargetD3D;
  class ImageD3D;
  
  class TextureStorage : angle::NonCopyable
  {
    public:
      TextureStorage();
      virtual ~TextureStorage() {};
  
      virtual int getTopLevel() const = 0;
      virtual bool isRenderTarget() const = 0;
      virtual bool isManaged() const = 0;
      virtual bool supportsNativeMipmapFunction() const = 0;
      virtual int getLevelCount() const = 0;
  
      virtual gl::Error getRenderTarget(const gl::ImageIndex &index, RenderTargetD3D **outRT) = 0;
      virtual gl::Error generateMipmap(const gl::ImageIndex &sourceIndex, const gl::ImageIndex &destIndex) = 0;
  
      virtual gl::Error copyToStorage(TextureStorage *destStorage) = 0;
      virtual gl::Error setData(const gl::ImageIndex &index, ImageD3D *image, const gl::Box *destBox, GLenum type,
                                const gl::PixelUnpackState &unpack, const uint8_t *pixelData) = 0;
  
      unsigned int getRenderTargetSerial(const gl::ImageIndex &index) const;
      unsigned int getTextureSerial() const;
  
      // This is a no-op for most implementations of TextureStorage. Some (e.g. TextureStorage11_2D) might override it.
      virtual gl::Error useLevelZeroWorkaroundTexture(bool useLevelZeroTexture) { return gl::Error(GL_NO_ERROR); }
  
    protected:
      void initializeSerials(unsigned int rtSerialsToReserve, unsigned int rtSerialsLayerStride);
  
    private:
      unsigned int mFirstRenderTargetSerial;
      unsigned int mRenderTargetSerialsLayerStride;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_TEXTURESTORAGE_H_