components/view_manager/gles2/mojo_gpu_memory_buffer.h

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_VIEW_MANAGER_GLES2_MOJO_GPU_MEMORY_BUFFER_H_
   6 #define COMPONENTS_VIEW_MANAGER_GLES2_MOJO_GPU_MEMORY_BUFFER_H_
   7
   8 #include "base/memory/scoped_ptr.h"
   9 #include "ui/gfx/geometry/size.h"
  10 #include "ui/gfx/gpu_memory_buffer.h"
  11
  12 namespace gles2 {
  13
  14 class MojoGpuMemoryBufferImpl : public gfx::GpuMemoryBuffer {
  15  public:
  16   MojoGpuMemoryBufferImpl(const gfx::Size& size,
  17                           Format format,
  18                           scoped_ptr<base::SharedMemory> shared_memory);
  19   ~MojoGpuMemoryBufferImpl() override;
  20
  21
  22   static scoped_ptr<gfx::GpuMemoryBuffer> Create(const gfx::Size& size,
  23                                                  Format format,
  24                                                  Usage usage);
  25
  26   static MojoGpuMemoryBufferImpl* FromClientBuffer(ClientBuffer buffer);
  27
  28   // Overridden from gfx::GpuMemoryBuffer:
  29   bool Map(void** data) override;
  30   void Unmap() override;
  31   bool IsMapped() const override;
  32   Format GetFormat() const override;
  33   void GetStride(int* stride) const override;
  34   gfx::GpuMemoryBufferHandle GetHandle() const override;
  35   ClientBuffer AsClientBuffer() override;
  36
  37  private:
  38   const gfx::Size size_;
  39   gfx::GpuMemoryBuffer::Format format_;
  40   scoped_ptr<base::SharedMemory> shared_memory_;
  41   bool mapped_;
  42
  43   DISALLOW_COPY_AND_ASSIGN(MojoGpuMemoryBufferImpl);
  44 };
  45
  46 }  // gles2
  47
  48 #endif  // COMPONENTS_VIEW_MANAGER_GLES2_MOJO_GPU_MEMORY_BUFFER_H_