| // Copyright 2014 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_SHARED_MEMORY_H_ |
| #define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SHARED_MEMORY_H_ |
| |
| #include "content/common/gpu/client/gpu_memory_buffer_impl.h" |
| |
| namespace content { |
| |
| // Implementation of GPU memory buffer based on shared memory. |
| class GpuMemoryBufferImplSharedMemory : public GpuMemoryBufferImpl { |
| public: |
| static void Create(const gfx::Size& size, |
| Format format, |
| const CreationCallback& callback); |
| |
| static void AllocateForChildProcess(const gfx::Size& size, |
| Format format, |
| base::ProcessHandle child_process, |
| const AllocationCallback& callback); |
| |
| static scoped_ptr<GpuMemoryBufferImpl> CreateFromHandle( |
| const gfx::GpuMemoryBufferHandle& handle, |
| const gfx::Size& size, |
| Format format, |
| const DestructionCallback& callback); |
| |
| static bool IsFormatSupported(Format format); |
| static bool IsUsageSupported(Usage usage); |
| static bool IsLayoutSupported(const gfx::Size& size, Format format); |
| static bool IsConfigurationSupported(const gfx::Size& size, |
| Format format, |
| Usage usage); |
| |
| // Overridden from gfx::GpuMemoryBuffer: |
| void* Map() override; |
| void Unmap() override; |
| uint32 GetStride() const override; |
| gfx::GpuMemoryBufferHandle GetHandle() const override; |
| |
| private: |
| GpuMemoryBufferImplSharedMemory(const gfx::Size& size, |
| Format format, |
| const DestructionCallback& callback, |
| scoped_ptr<base::SharedMemory> shared_memory); |
| ~GpuMemoryBufferImplSharedMemory() override; |
| |
| scoped_ptr<base::SharedMemory> shared_memory_; |
| |
| DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplSharedMemory); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_SHARED_MEMORY_H_ |