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

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• Hash : dcc9b51d
  Author :
  Date : 2017-06-05T15:28:45
  

  D3D11: Consolidate input layout application.
  
  This merges all calls to IASetInputLayout to a single place in
  StateManager11. This means we no longer have to invalidate the state
  for D3D11, and can always lazily apply the input layout state.
  
  Introduces a new ResourceSerial class to replace the uintptr_t and
  DirtyPointer design.
  
  BUG=angleproject:2052
  
  Change-Id: I76b874218b754395f25a129967c769b1f8f82115
  Reviewed-on: https://chromium-review.googlesource.com/523025
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Reviewed-by: Corentin Wallez <cwallez@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d11/InputLayoutCache.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.
  //
  
  // InputLayoutCache.h: Defines InputLayoutCache, a class that builds and caches
  // D3D11 input layouts.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D11_INPUTLAYOUTCACHE_H_
  #define LIBANGLE_RENDERER_D3D_D3D11_INPUTLAYOUTCACHE_H_
  
  #include <GLES2/gl2.h>
  
  #include <cstddef>
  
  #include <array>
  #include <map>
  
  #include "common/angleutils.h"
  #include "libANGLE/Constants.h"
  #include "libANGLE/Error.h"
  #include "libANGLE/formatutils.h"
  #include "libANGLE/renderer/d3d/RendererD3D.h"
  #include "libANGLE/renderer/d3d/d3d11/ResourceManager11.h"
  
  namespace gl
  {
  class Program;
  }
  
  namespace rx
  {
  struct TranslatedAttribute;
  struct TranslatedIndexData;
  struct SourceIndexData;
  class ProgramD3D;
  class Renderer11;
  
  class InputLayoutCache : angle::NonCopyable
  {
    public:
      InputLayoutCache();
      virtual ~InputLayoutCache();
  
      void initialize();
      void clear();
      void markDirty();
  
      gl::Error applyVertexBuffers(Renderer11 *renderer,
                                   const gl::State &state,
                                   const std::vector<TranslatedAttribute> &vertexArrayAttribs,
                                   const std::vector<TranslatedAttribute> &currentValueAttribs,
                                   GLenum mode,
                                   GLint start,
                                   TranslatedIndexData *indexInfo,
                                   GLsizei numIndicesPerInstance);
  
      gl::Error updateVertexOffsetsForPointSpritesEmulation(Renderer11 *renderer,
                                                            GLint startVertex,
                                                            GLsizei emulatedInstanceId);
  
      // Useful for testing
      void setCacheSize(unsigned int cacheSize) { mCacheSize = cacheSize; }
  
    private:
      struct PackedAttributeLayout
      {
          PackedAttributeLayout()
              : numAttributes(0),
                flags(0)
          {
          }
  
          void addAttributeData(GLenum glType,
                                UINT semanticIndex,
                                gl::VertexFormatType vertexFormatType,
                                unsigned int divisor);
  
          bool operator<(const PackedAttributeLayout &other) const;
  
          enum Flags
          {
              FLAG_USES_INSTANCED_SPRITES     = 0x1,
              FLAG_INSTANCED_SPRITES_ACTIVE   = 0x2,
              FLAG_INSTANCED_RENDERING_ACTIVE = 0x4,
          };
  
          size_t numAttributes;
          unsigned int flags;
          uint32_t attributeData[gl::MAX_VERTEX_ATTRIBS];
      };
  
      gl::Error updateInputLayout(Renderer11 *renderer,
                                  const gl::State &state,
                                  GLenum mode,
                                  const AttribIndexArray &sortedSemanticIndices,
                                  GLsizei numIndicesPerInstance);
      gl::Error createInputLayout(Renderer11 *renderer,
                                  const AttribIndexArray &sortedSemanticIndices,
                                  GLenum mode,
                                  gl::Program *program,
                                  GLsizei numIndicesPerInstance,
                                  d3d11::InputLayout *inputLayoutOut);
  
      std::map<PackedAttributeLayout, d3d11::InputLayout> mLayoutMap;
  
      std::array<ID3D11Buffer *, gl::MAX_VERTEX_ATTRIBS> mCurrentBuffers;
      std::array<UINT, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexStrides;
      std::array<UINT, gl::MAX_VERTEX_ATTRIBS> mCurrentVertexOffsets;
      std::vector<const TranslatedAttribute *> mCurrentAttributes;
  
      d3d11::Buffer mPointSpriteVertexBuffer;
      d3d11::Buffer mPointSpriteIndexBuffer;
  
      unsigned int mCacheSize;
  };
  
  }  // namespace rx
  
  #endif // LIBANGLE_RENDERER_D3D_D3D11_INPUTLAYOUTCACHE_H_
  

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