gpu_memory_buffer_impl_surface_texture.h revision e5d81f57cb97b3b6b7fccc9c5610d21eb81db09d 
1// Copyright 2014 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 CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SURFACE_TEXTURE_H_
6#define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SURFACE_TEXTURE_H_
7
8#include "content/common/gpu/client/gpu_memory_buffer_impl.h"
9
10struct ANativeWindow;
11
12namespace content {
13
14// Provides implementation of a GPU memory buffer based on a surface texture id.
15class GpuMemoryBufferImplSurfaceTexture : public GpuMemoryBufferImpl {
16 public:
17  GpuMemoryBufferImplSurfaceTexture(gfx::Size size, unsigned internalformat);
18  virtual ~GpuMemoryBufferImplSurfaceTexture();
19
20  bool Initialize(gfx::GpuMemoryBufferHandle handle);
21
22  static bool IsFormatSupported(unsigned internalformat);
23  static int WindowFormat(unsigned internalformat);
24
25  // Overridden from gfx::GpuMemoryBuffer:
26  virtual void* Map(AccessMode mode) OVERRIDE;
27  virtual void Unmap() OVERRIDE;
28  virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE;
29  virtual uint32 GetStride() const OVERRIDE;
30
31 private:
32  gfx::SurfaceTextureId surface_texture_id_;
33  ANativeWindow* native_window_;
34  size_t stride_;
35
36  DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplSurfaceTexture);
37};
38
39}  // namespace content
40
41#endif  // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SURFACE_TEXTURE_H_
42