kc3-lang/angle/src/libANGLE/renderer/d3d/d3d9/Buffer9.h

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• Hash : 31c13df5
  Author :
  Date : 2022-05-30T15:06:26
  

  Revert "Initialize buffer contents separately from BufferImpl::setData"
  
  This reverts commit 34cff1a14b635c76a9063b8710e948d04ef98a79.
  
  Reason for revert: Speculative revert for Mac M1 WebGL failures.
  
  Bug: chromium:1330314
  
  Original change's description:
  > Initialize buffer contents separately from BufferImpl::setData
  >
  > Some backends can initialize buffer data faster than allocating a
  > zero-filled scratch buffer (GL can map and memset for example).
  > Allow those backends the opportunity to make these optimizations.
  >
  > Verified that GL, D3D and VK backends do not regress by using a
  > separate set data call.
  >
  > Bug: chromium:983167
  > Change-Id: Ibcbe6016059434dc36ab3c754df6a24f0a6e5e72
  > Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3039778
  > Reviewed-by: Jamie Madill <jmadill@chromium.org>
  > Reviewed-by: Peng Huang <penghuang@chromium.org>
  > Commit-Queue: Geoff Lang <geofflang@chromium.org>
  
  Bug: chromium:983167
  Change-Id: Id1bfa76b832c35fd0b3ade04da16735aa089fdd2
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3677335
  Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
  Commit-Queue: Peng Huang <penghuang@chromium.org>
  

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• src/libANGLE/renderer/d3d/d3d9/Buffer9.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.
  //
  
  // Buffer9.h: Defines the rx::Buffer9 class which implements rx::BufferImpl via rx::BufferD3D.
  
  #ifndef LIBANGLE_RENDERER_D3D_D3D9_BUFFER9_H_
  #define LIBANGLE_RENDERER_D3D_D3D9_BUFFER9_H_
  
  #include "common/MemoryBuffer.h"
  #include "libANGLE/angletypes.h"
  #include "libANGLE/renderer/d3d/BufferD3D.h"
  
  namespace rx
  {
  class Renderer9;
  
  class Buffer9 : public BufferD3D
  {
    public:
      Buffer9(const gl::BufferState &state, Renderer9 *renderer);
      ~Buffer9() override;
  
      // BufferD3D implementation
      size_t getSize() const override;
      bool supportsDirectBinding() const override;
      angle::Result getData(const gl::Context *context, const uint8_t **outData) override;
  
      // BufferImpl implementation
      angle::Result setData(const gl::Context *context,
                            gl::BufferBinding target,
                            const void *data,
                            size_t size,
                            gl::BufferUsage usage) override;
      angle::Result setSubData(const gl::Context *context,
                               gl::BufferBinding target,
                               const void *data,
                               size_t size,
                               size_t offset) override;
      angle::Result copySubData(const gl::Context *context,
                                BufferImpl *source,
                                GLintptr sourceOffset,
                                GLintptr destOffset,
                                GLsizeiptr size) override;
      angle::Result map(const gl::Context *context, GLenum access, void **mapPtr) override;
      angle::Result mapRange(const gl::Context *context,
                             size_t offset,
                             size_t length,
                             GLbitfield access,
                             void **mapPtr) override;
      angle::Result unmap(const gl::Context *context, GLboolean *result) override;
      angle::Result markTransformFeedbackUsage(const gl::Context *context) override;
  
    private:
      angle::MemoryBuffer mMemory;
      size_t mSize;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_D3D_D3D9_BUFFER9_H_
  

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