kc3-lang/angle/src/libANGLE/renderer/d3d/d3d9/RenderTarget9.h

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• Hash : 025e76a0
  Author :
  Date : 2015-08-12T13:59:49
  

  When possible, create RenderTarget9s from textures.
  
  Unless the RenderTarget9 is backed by a texture, it's not possible to
  sample from it.  This is required to sample from D3D9 renderbuffers when
  they are bound to texture targets.
  
  BUG=angleproject:970
  
  Change-Id: Id667a5e44c1f959609bc653a974ede5b93ec9a3e
  Reviewed-on: https://chromium-review.googlesource.com/293290
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Tested-by: Geoff Lang <geofflang@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d9/RenderTarget9.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.
  //
  
  // RenderTarget9.h: Defines a D3D9-specific wrapper for IDirect3DSurface9 pointers
  // retained by Renderbuffers.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D9_RENDERTARGET9_H_
  #define LIBANGLE_RENDERER_D3D_D3D9_RENDERTARGET9_H_
  
  #include "libANGLE/renderer/d3d/RenderTargetD3D.h"
  
  namespace rx
  {
  class Renderer9;
  class SwapChain9;
  
  class RenderTarget9 : public RenderTargetD3D
  {
    public:
      RenderTarget9() { }
      virtual ~RenderTarget9() { }
      // Retrieve the texture that backs this render target, may be null for swap chain render
      // targets.
      virtual IDirect3DBaseTexture9 *getTexture() const = 0;
      virtual size_t getTextureLevel() const = 0;
  
      virtual IDirect3DSurface9 *getSurface() const = 0;
  
      virtual D3DFORMAT getD3DFormat() const = 0;
  };
  
  class TextureRenderTarget9 : public RenderTarget9
  {
    public:
      TextureRenderTarget9(IDirect3DBaseTexture9 *texture,
                           size_t textureLevel,
                           IDirect3DSurface9 *surface,
                           GLenum internalFormat,
                           GLsizei width,
                           GLsizei height,
                           GLsizei depth,
                           GLsizei samples);
      virtual ~TextureRenderTarget9();
  
      GLsizei getWidth() const override;
      GLsizei getHeight() const override;
      GLsizei getDepth() const override;
      GLenum getInternalFormat() const override;
      GLsizei getSamples() const override;
  
      IDirect3DBaseTexture9 *getTexture() const override;
      size_t getTextureLevel() const override;
      IDirect3DSurface9 *getSurface() const override;
  
      D3DFORMAT getD3DFormat() const override;
  
    private:
      GLsizei mWidth;
      GLsizei mHeight;
      GLsizei mDepth;
      GLenum mInternalFormat;
      D3DFORMAT mD3DFormat;
      GLsizei mSamples;
  
      IDirect3DBaseTexture9 *mTexture;
      size_t mTextureLevel;
      IDirect3DSurface9 *mRenderTarget;
  };
  
  class SurfaceRenderTarget9 : public RenderTarget9
  {
    public:
      SurfaceRenderTarget9(SwapChain9 *swapChain, bool depth);
      virtual ~SurfaceRenderTarget9();
  
      GLsizei getWidth() const override;
      GLsizei getHeight() const override;
      GLsizei getDepth() const override;
      GLenum getInternalFormat() const override;
      GLsizei getSamples() const override;
  
      IDirect3DBaseTexture9 *getTexture() const override;
      size_t getTextureLevel() const override;
      IDirect3DSurface9 *getSurface() const override;
  
      D3DFORMAT getD3DFormat() const override;
  
    private:
      SwapChain9 *mSwapChain;
      bool mDepth;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_D3D9_RENDERTARGET9_H_
  

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