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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 <vector>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/common/content_export.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace gfx {
class GLImage;
}
namespace gpu {
class ImageFactory;
}
namespace content {
class CONTENT_EXPORT GpuMemoryBufferFactory {
public:
struct Configuration {
gfx::GpuMemoryBuffer::Format format;
gfx::GpuMemoryBuffer::Usage usage;
};
GpuMemoryBufferFactory() {}
virtual ~GpuMemoryBufferFactory() {}
// Gets system supported GPU memory buffer factory types. Preferred type at
// the front of vector.
static void GetSupportedTypes(std::vector<gfx::GpuMemoryBufferType>* types);
// Creates a new factory instance for |type|.
static scoped_ptr<GpuMemoryBufferFactory> Create(
gfx::GpuMemoryBufferType type);
// Gets supported format/usage configurations.
virtual void GetSupportedGpuMemoryBufferConfigurations(
std::vector<Configuration>* configurations) = 0;
// Creates a new GPU memory buffer instance. A valid handle is returned on
// success.
virtual gfx::GpuMemoryBufferHandle CreateGpuMemoryBuffer(
gfx::GpuMemoryBufferId id,
const gfx::Size& size,
gfx::GpuMemoryBuffer::Format format,
gfx::GpuMemoryBuffer::Usage usage,
int client_id) = 0;
// Destroys GPU memory buffer identified by |id|.
virtual void DestroyGpuMemoryBuffer(gfx::GpuMemoryBufferId id,
int client_id) = 0;
// Type-checking downcast routine.
virtual gpu::ImageFactory* AsImageFactory() = 0;
private:
DISALLOW_COPY_AND_ASSIGN(GpuMemoryBufferFactory);
};
} // namespace content
#endif // CONTENT_COMMON_GPU_GPU_MEMORY_BUFFER_FACTORY_H_
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