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// 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_GPU_MEMORY_BUFFER_FACTORY_H_
#define CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace gfx {
class GLImage;
}
namespace content {
class GpuMemoryBufferFactory {
public:
GpuMemoryBufferFactory() {}
virtual ~GpuMemoryBufferFactory() {}
// Creates a new platform specific factory instance.
static scoped_ptr<GpuMemoryBufferFactory> Create();
// Creates a GPU memory buffer instance from |handle|. Whether the storage for
// the buffer is passed with the handle or allocated as part of buffer
// creation depends on the type. A valid handle is returned on success.
virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
const gfx::GpuMemoryBufferHandle& handle,
const gfx::Size& size,
unsigned internalformat,
unsigned usage) = 0;
// Destroys GPU memory buffer identified by |handle|.
virtual void DestroyGpuMemoryBuffer(
const gfx::GpuMemoryBufferHandle& handle) = 0;
// Creates a GLImage instance for GPU memory buffer identified by |handle|.
// |client_id| should be set to the client requesting the creation of instance
// and can be used by factory implementation to verify access rights.
virtual scoped_refptr<gfx::GLImage> CreateImageForGpuMemoryBuffer(
const gfx::GpuMemoryBufferHandle& handle,
const gfx::Size& size,
unsigned internalformat,
int client_id) = 0;
private:
DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactory);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
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