| // Copyright 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_ |
| #define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_ |
| |
| #include "base/memory/scoped_ptr.h" |
| #include "ui/gfx/gpu_memory_buffer.h" |
| #include "ui/gfx/size.h" |
| |
| namespace content { |
| |
| // Provides common implementation of a GPU memory buffer based |
| // on a shared memory handle. |
| class GpuMemoryBufferImpl : public gfx::GpuMemoryBuffer { |
| public: |
| GpuMemoryBufferImpl(scoped_ptr<base::SharedMemory> shared_memory, |
| size_t width, |
| size_t height, |
| unsigned internalformat); |
| virtual ~GpuMemoryBufferImpl(); |
| |
| // Overridden from gfx::GpuMemoryBuffer: |
| virtual void Map(AccessMode mode, void** vaddr) OVERRIDE; |
| virtual void Unmap() OVERRIDE; |
| virtual bool IsMapped() const OVERRIDE; |
| virtual uint32 GetStride() const OVERRIDE; |
| virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE; |
| |
| static bool IsFormatValid(unsigned internalformat); |
| static size_t BytesPerPixel(unsigned internalformat); |
| |
| private: |
| scoped_ptr<base::SharedMemory> shared_memory_; |
| const gfx::Size size_; |
| unsigned internalformat_; |
| bool mapped_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImpl); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_H_ |