kc3-lang/angle/src/libANGLE/renderer/d3d/FramebufferD3D.h

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• Hash : 5416f753
  Author :
  Date : 2017-03-09T22:02:43
  

  Clear11 Shader Optimizations and Shader Management Rework
  
  - ClearShader made into a class that manages all required shaders and input layouts for clears
  - ClearShader reuses VS for all clear types. This reduces shader compilation time and memory usage
  significantly
  - Use constantBuffer for color/z values instead of VB to decouple VB & VS from clearType and
  allowing for the same VS to be used for multiple clear types
  - FL10+ Devices: Generate positions using SV_VertexID in VS to avoid having to bind VB.
  - FL93 Devices: Use an immutable VB containing only position data (SV_VertexID not supported)
  - Implement CB cache. Incoming color/Z values checked against cache and CB/cache only updated if
  there is a mismatch. Significantly reduces the frequency of expensive CB map/rename operations
  especially in common scenarios where most/all clears use the same color/z values
  
  BUG=angleproject:1935
  
  Change-Id: I2015fbdcc135ba08b65dbecbe9c62499c2801037
  Reviewed-on: https://chromium-review.googlesource.com/453882
  Commit-Queue: Shahmeer Esmail <shahmeer.esmail@intel.com>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/d3d/FramebufferD3D.h

• //
  // Copyright 2014 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.
  //
  
  // FramebufferD3D.h: Defines the DefaultAttachmentD3D and FramebufferD3D classes.
  
  #ifndef LIBANGLE_RENDERER_D3D_FRAMBUFFERD3D_H_
  #define LIBANGLE_RENDERER_D3D_FRAMBUFFERD3D_H_
  
  #include <vector>
  #include <cstdint>
  
  #include "common/Color.h"
  #include "common/Optional.h"
  #include "libANGLE/angletypes.h"
  #include "libANGLE/renderer/FramebufferImpl.h"
  
  namespace gl
  {
  class FramebufferAttachment;
  struct PixelPackState;
  
  typedef std::vector<const FramebufferAttachment *> AttachmentList;
  
  }
  
  namespace rx
  {
  class RendererD3D;
  class RenderTargetD3D;
  
  struct ClearParameters
  {
      bool clearColor[gl::IMPLEMENTATION_MAX_DRAW_BUFFERS];
      gl::ColorF colorF;
      gl::ColorI colorI;
      gl::ColorUI colorUI;
      GLenum colorType;
      bool colorMaskRed;
      bool colorMaskGreen;
      bool colorMaskBlue;
      bool colorMaskAlpha;
  
      bool clearDepth;
      float depthValue;
  
      bool clearStencil;
      GLint stencilValue;
      GLuint stencilWriteMask;
  
      bool scissorEnabled;
      gl::Rectangle scissor;
  };
  
  class FramebufferD3D : public FramebufferImpl
  {
    public:
      FramebufferD3D(const gl::FramebufferState &data, RendererD3D *renderer);
      virtual ~FramebufferD3D();
  
      gl::Error clear(ContextImpl *impl, GLbitfield mask) override;
      gl::Error clearBufferfv(ContextImpl *impl,
                              GLenum buffer,
                              GLint drawbuffer,
                              const GLfloat *values) override;
      gl::Error clearBufferuiv(ContextImpl *impl,
                               GLenum buffer,
                               GLint drawbuffer,
                               const GLuint *values) override;
      gl::Error clearBufferiv(ContextImpl *impl,
                              GLenum buffer,
                              GLint drawbuffer,
                              const GLint *values) override;
      gl::Error clearBufferfi(ContextImpl *impl,
                              GLenum buffer,
                              GLint drawbuffer,
                              GLfloat depth,
                              GLint stencil) override;
  
      GLenum getImplementationColorReadFormat() const override;
      GLenum getImplementationColorReadType() const override;
      gl::Error readPixels(ContextImpl *impl,
                           const gl::Rectangle &area,
                           GLenum format,
                           GLenum type,
                           void *pixels) const override;
  
      gl::Error blit(ContextImpl *impl,
                     const gl::Rectangle &sourceArea,
                     const gl::Rectangle &destArea,
                     GLbitfield mask,
                     GLenum filter) override;
  
      bool checkStatus() const override;
  
      void syncState(ContextImpl *contextImpl, const gl::Framebuffer::DirtyBits &dirtyBits) override;
  
      const gl::AttachmentList &getColorAttachmentsForRender() const;
  
      gl::Error getSamplePosition(size_t index, GLfloat *xy) const override;
  
    private:
      virtual gl::Error clearImpl(ContextImpl *impl, const ClearParameters &clearParams) = 0;
  
      virtual gl::Error readPixelsImpl(const gl::Rectangle &area,
                                       GLenum format,
                                       GLenum type,
                                       size_t outputPitch,
                                       const gl::PixelPackState &pack,
                                       uint8_t *pixels) const = 0;
  
      virtual gl::Error blitImpl(const gl::Rectangle &sourceArea,
                                 const gl::Rectangle &destArea,
                                 const gl::Rectangle *scissor,
                                 bool blitRenderTarget,
                                 bool blitDepth,
                                 bool blitStencil,
                                 GLenum filter,
                                 const gl::Framebuffer *sourceFramebuffer) = 0;
  
      virtual GLenum getRenderTargetImplementationFormat(RenderTargetD3D *renderTarget) const = 0;
  
      RendererD3D *mRenderer;
      Optional<gl::AttachmentList> mColorAttachmentsForRender;
  };
  
  }
  
  #endif // LIBANGLE_RENDERER_D3D_FRAMBUFFERD3D_H_
  

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