kc3-lang/angle/src/libANGLE/renderer/null/BufferNULL.h

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• Hash : f197ebac
  Author :
  Date : 2020-11-16T15:16:56
  

  Vulkan: Add EXT_external_buffer support
  
  Addition of buffer support for external memory
  Also adds new end2end tests for these usecases
    * SubData update
    * map/unmap buffer
    * dispatch compute with external buffer
  
  Bug: angleproject:5073
  Test: ExternalBufferTestES31.*Vulkan
  Change-Id: Ib3cccaca77b76830effe49d3731782552e7424ec
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2525105
  Commit-Queue: Mohan Maiya <m.maiya@samsung.com>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/libANGLE/renderer/null/BufferNULL.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.
  //
  // BufferNULL.h:
  //    Defines the class interface for BufferNULL, implementing BufferImpl.
  //
  
  #ifndef LIBANGLE_RENDERER_NULL_BUFFERNULL_H_
  #define LIBANGLE_RENDERER_NULL_BUFFERNULL_H_
  
  #include "libANGLE/renderer/BufferImpl.h"
  
  namespace rx
  {
  
  class AllocationTrackerNULL;
  
  class BufferNULL : public BufferImpl
  {
    public:
      BufferNULL(const gl::BufferState &state, AllocationTrackerNULL *allocationTracker);
      ~BufferNULL() override;
  
      angle::Result setDataWithUsageFlags(const gl::Context *context,
                                          gl::BufferBinding target,
                                          GLeglClientBufferEXT clientBuffer,
                                          const void *data,
                                          size_t size,
                                          gl::BufferUsage usage,
                                          GLbitfield flags) override;
      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 getIndexRange(const gl::Context *context,
                                  gl::DrawElementsType type,
                                  size_t offset,
                                  size_t count,
                                  bool primitiveRestartEnabled,
                                  gl::IndexRange *outRange) override;
  
      uint8_t *getDataPtr();
      const uint8_t *getDataPtr() const;
  
    private:
      std::vector<uint8_t> mData;
  
      AllocationTrackerNULL *mAllocationTracker;
  };
  
  }  // namespace rx
  
  #endif  // LIBANGLE_RENDERER_NULL_BUFFERNULL_H_
  

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