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// 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_IO_SURFACE_H_
#define CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_
#include <IOSurface/IOSurface.h>
#include <stddef.h>
#include <stdint.h>
#include "base/mac/scoped_cftyperef.h"
#include "base/macros.h"
#include "content/common/content_export.h"
#include "content/common/gpu/client/gpu_memory_buffer_impl.h"
namespace content {
// Implementation of GPU memory buffer based on IO surfaces.
class CONTENT_EXPORT GpuMemoryBufferImplIOSurface : public GpuMemoryBufferImpl {
public:
~GpuMemoryBufferImplIOSurface() override;
static scoped_ptr<GpuMemoryBufferImplIOSurface> CreateFromHandle(
const gfx::GpuMemoryBufferHandle& handle,
const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
const DestructionCallback& callback);
static bool IsConfigurationSupported(gfx::BufferFormat format,
gfx::BufferUsage usage);
static base::Closure AllocateForTesting(const gfx::Size& size,
gfx::BufferFormat format,
gfx::BufferUsage usage,
gfx::GpuMemoryBufferHandle* handle);
// Overridden from gfx::GpuMemoryBuffer:
bool Map() override;
void* memory(size_t plane) override;
void Unmap() override;
bool IsInUseByMacOSWindowServer() const override;
int stride(size_t plane) const override;
gfx::GpuMemoryBufferHandle GetHandle() const override;
private:
GpuMemoryBufferImplIOSurface(gfx::GpuMemoryBufferId id,
const gfx::Size& size,
gfx::BufferFormat format,
const DestructionCallback& callback,
IOSurfaceRef io_surface,
uint32_t lock_flags);
base::ScopedCFTypeRef<IOSurfaceRef> io_surface_;
uint32_t lock_flags_;
DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferImplIOSurface);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_CLIENT_GPU_MEMORY_BUFFER_IMPL_IO_SURFACE_H_
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