kc3-lang/angle/src/libANGLE/renderer/vulkan/VertexArrayVk.h

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• Hash : 58fd3157
  Author :
  Date : 2022-05-12T00:01:19
  

  Vulkan: Dynamic state for vertex stride
  
  Bug: angleproject:5906
  Change-Id: I73b7e004fc25bf3777982736412adc1ca57504b9
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3644856
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org>
  Reviewed-by: Yuxin Hu <yuxinhu@google.com>
  

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• src/libANGLE/renderer/vulkan/VertexArrayVk.h

• //
  // Copyright 2016 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.
  //
  // VertexArrayVk.h:
  //    Defines the class interface for VertexArrayVk, implementing VertexArrayImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_VULKAN_VERTEXARRAYVK_H_
  #define LIBANGLE_RENDERER_VULKAN_VERTEXARRAYVK_H_
  
  #include "libANGLE/renderer/VertexArrayImpl.h"
  #include "libANGLE/renderer/vulkan/vk_cache_utils.h"
  #include "libANGLE/renderer/vulkan/vk_helpers.h"
  
  namespace rx
  {
  class BufferVk;
  struct ConversionBuffer;
  
  enum class BufferBindingDirty
  {
      No,
      Yes,
  };
  
  class VertexArrayVk : public VertexArrayImpl
  {
    public:
      VertexArrayVk(ContextVk *contextVk, const gl::VertexArrayState &state);
      ~VertexArrayVk() override;
  
      void destroy(const gl::Context *context) override;
  
      angle::Result syncState(const gl::Context *context,
                              const gl::VertexArray::DirtyBits &dirtyBits,
                              gl::VertexArray::DirtyAttribBitsArray *attribBits,
                              gl::VertexArray::DirtyBindingBitsArray *bindingBits) override;
  
      angle::Result updateActiveAttribInfo(ContextVk *contextVk);
  
      angle::Result updateDefaultAttrib(ContextVk *contextVk, size_t attribIndex);
  
      angle::Result updateStreamedAttribs(const gl::Context *context,
                                          GLint firstVertex,
                                          GLsizei vertexOrIndexCount,
                                          GLsizei instanceCount,
                                          gl::DrawElementsType indexTypeOrInvalid,
                                          const void *indices);
  
      angle::Result handleLineLoop(ContextVk *contextVk,
                                   GLint firstVertex,
                                   GLsizei vertexOrIndexCount,
                                   gl::DrawElementsType indexTypeOrInvalid,
                                   const void *indices,
                                   uint32_t *indexCountOut);
  
      angle::Result handleLineLoopIndexIndirect(ContextVk *contextVk,
                                                gl::DrawElementsType glIndexType,
                                                vk::BufferHelper *srcIndirectBuf,
                                                VkDeviceSize indirectBufferOffset,
                                                vk::BufferHelper **indirectBufferOut);
  
      angle::Result handleLineLoopIndirectDraw(const gl::Context *context,
                                               vk::BufferHelper *indirectBufferVk,
                                               VkDeviceSize indirectBufferOffset,
                                               vk::BufferHelper **indirectBufferOut);
  
      const gl::AttribArray<VkBuffer> &getCurrentArrayBufferHandles() const
      {
          return mCurrentArrayBufferHandles;
      }
  
      const gl::AttribArray<VkDeviceSize> &getCurrentArrayBufferOffsets() const
      {
          return mCurrentArrayBufferOffsets;
      }
  
      const gl::AttribArray<vk::BufferHelper *> &getCurrentArrayBuffers() const
      {
          return mCurrentArrayBuffers;
      }
  
      const gl::AttribArray<angle::FormatID> &getCurrentArrayBufferFormats() const
      {
          return mCurrentArrayBufferFormats;
      }
  
      const gl::AttribArray<GLuint> &getCurrentArrayBufferStrides() const
      {
          return mCurrentArrayBufferStrides;
      }
  
      // Update mCurrentElementArrayBuffer based on the vertex array state
      void updateCurrentElementArrayBuffer();
  
      vk::BufferHelper *getCurrentElementArrayBuffer() const { return mCurrentElementArrayBuffer; }
  
      angle::Result convertIndexBufferGPU(ContextVk *contextVk,
                                          BufferVk *bufferVk,
                                          const void *indices);
  
      angle::Result convertIndexBufferIndirectGPU(ContextVk *contextVk,
                                                  vk::BufferHelper *srcIndirectBuf,
                                                  VkDeviceSize srcIndirectBufOffset,
                                                  vk::BufferHelper **indirectBufferVkOut);
  
      angle::Result convertIndexBufferCPU(ContextVk *contextVk,
                                          gl::DrawElementsType indexType,
                                          size_t indexCount,
                                          const void *sourcePointer,
                                          BufferBindingDirty *bufferBindingDirty);
  
      const gl::AttributesMask &getStreamingVertexAttribsMask() const
      {
          return mStreamingVertexAttribsMask;
      }
  
    private:
      angle::Result setDefaultPackedInput(ContextVk *contextVk,
                                          size_t attribIndex,
                                          angle::FormatID *formatOut);
  
      angle::Result convertVertexBufferGPU(ContextVk *contextVk,
                                           BufferVk *srcBuffer,
                                           const gl::VertexBinding &binding,
                                           size_t attribIndex,
                                           const vk::Format &vertexFormat,
                                           ConversionBuffer *conversion,
                                           GLuint relativeOffset,
                                           bool compressed);
      angle::Result convertVertexBufferCPU(ContextVk *contextVk,
                                           BufferVk *srcBuffer,
                                           const gl::VertexBinding &binding,
                                           size_t attribIndex,
                                           const vk::Format &vertexFormat,
                                           ConversionBuffer *conversion,
                                           GLuint relativeOffset,
                                           bool compress);
  
      angle::Result syncDirtyAttrib(ContextVk *contextVk,
                                    const gl::VertexAttribute &attrib,
                                    const gl::VertexBinding &binding,
                                    size_t attribIndex,
                                    bool bufferOnly);
  
      gl::AttribArray<VkBuffer> mCurrentArrayBufferHandles;
      gl::AttribArray<VkDeviceSize> mCurrentArrayBufferOffsets;
      // The offset into the buffer to the first attrib
      gl::AttribArray<GLuint> mCurrentArrayBufferRelativeOffsets;
      gl::AttribArray<vk::BufferHelper *> mCurrentArrayBuffers;
      // Cache strides of attributes for a fast pipeline cache update when VAOs are changed
      gl::AttribArray<angle::FormatID> mCurrentArrayBufferFormats;
      gl::AttribArray<GLuint> mCurrentArrayBufferStrides;
      gl::AttributesMask mCurrentArrayBufferCompressed;
      vk::BufferHelper *mCurrentElementArrayBuffer;
  
      // Cached element array buffers for improving performance.
      vk::BufferHelperPointerVector mCachedStreamIndexBuffers;
  
      vk::BufferHelper mStreamedIndexData;
      vk::BufferHelper mTranslatedByteIndexData;
      vk::BufferHelper mTranslatedByteIndirectData;
  
      vk::LineLoopHelper mLineLoopHelper;
      Optional<GLint> mLineLoopBufferFirstIndex;
      Optional<size_t> mLineLoopBufferLastIndex;
      bool mDirtyLineLoopTranslation;
  
      // Track client and/or emulated attribs that we have to stream their buffer contents
      gl::AttributesMask mStreamingVertexAttribsMask;
  };
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_VULKAN_VERTEXARRAYVK_H_
  

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