1 // Copyright 2013 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_IO_SURFACE_H_ 6 #define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_ 7 8 #include <IOSurface/IOSurfaceAPI.h> 9 10 #include "base/mac/scoped_cftyperef.h" 11 #include "content/common/gpu/client/gpu_memory_buffer_impl.h" 12 13 namespace content { 14 15 // Implementation of GPU memory buffer based on IO surfaces. 16 class GpuMemoryBufferImplIOSurface : public GpuMemoryBufferImpl { 17 public: 18 static void Create(const gfx::Size& size, 19 unsigned internalformat, 20 unsigned usage, 21 int client_id, 22 const CreationCallback& callback); 23 24 static void AllocateForChildProcess(const gfx::Size& size, 25 unsigned internalformat, 26 unsigned usage, 27 int child_client_id, 28 const AllocationCallback& callback); 29 30 static scoped_ptr<GpuMemoryBufferImpl> CreateFromHandle( 31 const gfx::GpuMemoryBufferHandle& handle, 32 const gfx::Size& size, 33 unsigned internalformat, 34 const DestructionCallback& callback); 35 36 static bool IsFormatSupported(unsigned internalformat); 37 static bool IsUsageSupported(unsigned usage); 38 static bool IsConfigurationSupported(unsigned internalformat, unsigned usage); 39 static uint32 PixelFormat(unsigned internalformat); 40 41 // Overridden from gfx::GpuMemoryBuffer: 42 virtual void* Map() OVERRIDE; 43 virtual void Unmap() OVERRIDE; 44 virtual uint32 GetStride() const OVERRIDE; 45 virtual gfx::GpuMemoryBufferHandle GetHandle() const OVERRIDE; 46 47 private: 48 GpuMemoryBufferImplIOSurface(const gfx::Size& size, 49 unsigned internalformat, 50 const DestructionCallback& callback, 51 IOSurfaceRef io_surface); 52 virtual ~GpuMemoryBufferImplIOSurface(); 53 54 base::ScopedCFTypeRef<IOSurfaceRef> io_surface_; 55 56 DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplIOSurface); 57 }; 58 59 } // namespace content 60 61 #endif // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_ 62
