kc3-lang/angle/src/libANGLE/renderer/d3d/d3d9/Blit9.h

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• Hash : 46258e1f
  Author :
  Date : 2017-04-10T12:28:34
  

  Blit9: Pass the dest rect to setViewportAndShaderConstants.
  
  Using the sourceRect for calculating the viewport and texture coordinates
  was not enough when the source and destination rectangles were different
  sizes (generating mipmaps).
  
  BUG=709232
  
  Change-Id: I2704ddf6e3da0939ad77d278ab495e53a2d9bc7d
  Reviewed-on: https://chromium-review.googlesource.com/473266
  Commit-Queue: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d9/Blit9.h

• //
  // Copyright (c) 2002-2010 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.
  //
  
  // Blit9.cpp: Surface copy utility class.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D9_BLIT9_H_
  #define LIBANGLE_RENDERER_D3D_D3D9_BLIT9_H_
  
  #include "common/angleutils.h"
  #include "libANGLE/Error.h"
  
  #include <GLES2/gl2.h>
  
  namespace gl
  {
  class Framebuffer;
  class Texture;
  struct Extents;
  struct Offset;
  }
  
  namespace rx
  {
  class Renderer9;
  class TextureStorage;
  
  class Blit9 : angle::NonCopyable
  {
    public:
      explicit Blit9(Renderer9 *renderer);
      ~Blit9();
  
      gl::Error initialize();
  
      // Copy from source surface to dest surface.
      // sourceRect, xoffset, yoffset are in D3D coordinates (0,0 in upper-left)
      gl::Error copy2D(const gl::Framebuffer *framebuffer, const RECT &sourceRect, GLenum destFormat, const gl::Offset &destOffset, TextureStorage *storage, GLint level);
      gl::Error copyCube(const gl::Framebuffer *framebuffer,
                         const RECT &sourceRect,
                         GLenum destFormat,
                         const gl::Offset &destOffset,
                         TextureStorage *storage,
                         GLenum target,
                         GLint level);
      gl::Error copyTexture2D(const gl::Texture *source,
                              GLint sourceLevel,
                              const RECT &sourceRect,
                              GLenum destFormat,
                              const gl::Offset &destOffset,
                              TextureStorage *storage,
                              GLint destLevel,
                              bool flipY,
                              bool premultiplyAlpha,
                              bool unmultiplyAlpha);
  
      // 2x2 box filter sample from source to dest.
      // Requires that source is RGB(A) and dest has the same format as source.
      gl::Error boxFilter(IDirect3DSurface9 *source, IDirect3DSurface9 *dest);
  
    private:
      Renderer9 *mRenderer;
  
      bool mGeometryLoaded;
      IDirect3DVertexBuffer9 *mQuadVertexBuffer;
      IDirect3DVertexDeclaration9 *mQuadVertexDeclaration;
  
      // Copy from source texture to dest surface.
      // sourceRect, xoffset, yoffset are in D3D coordinates (0,0 in upper-left)
      // source is interpreted as RGBA and destFormat specifies the desired result format. For
      // example, if destFormat = GL_RGB, the alpha channel will be forced to 0.
      gl::Error formatConvert(IDirect3DBaseTexture9 *source,
                              const RECT &sourceRect,
                              const gl::Extents &sourceSize,
                              GLenum destFormat,
                              const gl::Offset &destOffset,
                              IDirect3DSurface9 *dest,
                              bool flipY,
                              bool premultiplyAlpha,
                              bool unmultiplyAlpha);
      gl::Error setFormatConvertShaders(GLenum destFormat,
                                        bool flipY,
                                        bool premultiplyAlpha,
                                        bool unmultiplyAlpha);
  
      gl::Error copy(IDirect3DSurface9 *source,
                     IDirect3DBaseTexture9 *sourceTexture,
                     const RECT &sourceRect,
                     GLenum destFormat,
                     const gl::Offset &destOffset,
                     IDirect3DSurface9 *dest,
                     bool flipY,
                     bool premultiplyAlpha,
                     bool unmultiplyAlpha);
      gl::Error copySurfaceToTexture(IDirect3DSurface9 *surface,
                                     const RECT &sourceRect,
                                     IDirect3DBaseTexture9 **outTexture);
      void setViewportAndShaderConstants(const RECT &sourceRect,
                                         const gl::Extents &sourceSize,
                                         const RECT &destRect,
                                         bool flipY);
      void setCommonBlitState();
      RECT getSurfaceRect(IDirect3DSurface9 *surface) const;
      gl::Extents getSurfaceSize(IDirect3DSurface9 *surface) const;
  
      // This enum is used to index mCompiledShaders and mShaderSource.
      enum ShaderId
      {
          SHADER_VS_STANDARD,
          SHADER_PS_PASSTHROUGH,
          SHADER_PS_LUMINANCE,
          SHADER_PS_LUMINANCE_PREMULTIPLY_ALPHA,
          SHADER_PS_LUMINANCE_UNMULTIPLY_ALPHA,
          SHADER_PS_COMPONENTMASK,
          SHADER_PS_COMPONENTMASK_PREMULTIPLY_ALPHA,
          SHADER_PS_COMPONENTMASK_UNMULTIPLY_ALPHA,
          SHADER_COUNT,
      };
  
      // This actually contains IDirect3DVertexShader9 or IDirect3DPixelShader9 casted to IUnknown.
      IUnknown *mCompiledShaders[SHADER_COUNT];
  
      template <class D3DShaderType>
      gl::Error setShader(ShaderId source, const char *profile,
                          gl::Error (Renderer9::*createShader)(const DWORD *, size_t length, D3DShaderType **outShader),
                          HRESULT (WINAPI IDirect3DDevice9::*setShader)(D3DShaderType*));
  
      gl::Error setVertexShader(ShaderId shader);
      gl::Error setPixelShader(ShaderId shader);
      void render();
  
      void saveState();
      void restoreState();
      IDirect3DStateBlock9 *mSavedStateBlock;
      IDirect3DSurface9 *mSavedRenderTarget;
      IDirect3DSurface9 *mSavedDepthStencil;
  };
  
  }
  
  #endif   // LIBANGLE_RENDERER_D3D_D3D9_BLIT9_H_
  

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