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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 GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
#define GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
#include "base/memory/ref_counted.h"
#include "gpu/gpu_export.h"
#include "ui/gfx/geometry/size.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace gfx {
class GLImage;
}
namespace gpu {
class GPU_EXPORT ImageFactory {
public:
ImageFactory();
// Returns a valid GpuMemoryBuffer format given a valid internalformat as
// defined by CHROMIUM_gpu_memory_buffer_image.
static gfx::GpuMemoryBuffer::Format ImageFormatToGpuMemoryBufferFormat(
unsigned internalformat);
// Returns a valid GpuMemoryBuffer usage given a valid usage as defined by
// CHROMIUM_gpu_memory_buffer_image.
static gfx::GpuMemoryBuffer::Usage ImageUsageToGpuMemoryBufferUsage(
unsigned usage);
// Returns true if |internalformat| is compatible with |format|.
static bool IsImageFormatCompatibleWithGpuMemoryBufferFormat(
unsigned internalformat,
gfx::GpuMemoryBuffer::Format format);
// 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,
gfx::GpuMemoryBuffer::Format format,
unsigned internalformat,
int client_id) = 0;
protected:
virtual ~ImageFactory();
};
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_IMAGE_FACTORY_H_
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