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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 MEDIA_RENDERERS_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
#define MEDIA_RENDERERS_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
#include <vector>
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "gpu/command_buffer/common/mailbox.h"
#include "media/base/media_export.h"
#include "media/video/video_decode_accelerator.h"
#include "media/video/video_encode_accelerator.h"
#include "ui/gfx/gpu_memory_buffer.h"
namespace base {
class SingleThreadTaskRunner;
class SharedMemory;
}
namespace gfx {
class Rect;
class Size;
}
namespace media {
class VideoDecodeAccelerator;
// Helper interface for specifying factories needed to instantiate a hardware
// video accelerator.
// Threading model:
// * The GpuVideoAcceleratorFactories may be constructed on any thread.
// * The GpuVideoAcceleratorFactories has an associated message loop, which may
// be retrieved as |GetMessageLoop()|.
// * All calls to the Factories after construction must be made on its message
// loop.
class MEDIA_EXPORT GpuVideoAcceleratorFactories
: public base::RefCountedThreadSafe<GpuVideoAcceleratorFactories> {
public:
// Return whether GPU encoding/decoding is enabled.
virtual bool IsGpuVideoAcceleratorEnabled() = 0;
// Caller owns returned pointer, but should call Destroy() on it (instead of
// directly deleting) for proper destruction, as per the
// VideoDecodeAccelerator interface.
virtual scoped_ptr<VideoDecodeAccelerator> CreateVideoDecodeAccelerator() = 0;
// Caller owns returned pointer, but should call Destroy() on it (instead of
// directly deleting) for proper destruction, as per the
// VideoEncodeAccelerator interface.
virtual scoped_ptr<VideoEncodeAccelerator> CreateVideoEncodeAccelerator() = 0;
// Allocate & delete native textures.
virtual bool CreateTextures(int32 count,
const gfx::Size& size,
std::vector<uint32>* texture_ids,
std::vector<gpu::Mailbox>* texture_mailboxes,
uint32 texture_target) = 0;
virtual void DeleteTexture(uint32 texture_id) = 0;
virtual void WaitSyncPoint(uint32 sync_point) = 0;
virtual scoped_ptr<gfx::GpuMemoryBuffer> AllocateGpuMemoryBuffer(
const gfx::Size& size,
gfx::GpuMemoryBuffer::Format format,
gfx::GpuMemoryBuffer::Usage usage) = 0;
virtual unsigned ImageTextureTarget() = 0;
virtual bool IsTextureRGSupported() = 0;
virtual gpu::gles2::GLES2Interface* GetGLES2Interface() = 0;
// Allocate & return a shared memory segment.
virtual scoped_ptr<base::SharedMemory> CreateSharedMemory(size_t size) = 0;
// Returns the task runner the video accelerator runs on.
virtual scoped_refptr<base::SingleThreadTaskRunner> GetTaskRunner() = 0;
// Returns the supported codec profiles of video decode accelerator.
virtual VideoDecodeAccelerator::SupportedProfiles
GetVideoDecodeAcceleratorSupportedProfiles() = 0;
// Returns the supported codec profiles of video encode accelerator.
virtual VideoEncodeAccelerator::SupportedProfiles
GetVideoEncodeAcceleratorSupportedProfiles() = 0;
protected:
friend class base::RefCountedThreadSafe<GpuVideoAcceleratorFactories>;
virtual ~GpuVideoAcceleratorFactories() {}
};
} // namespace media
#endif // MEDIA_RENDERERS_GPU_VIDEO_ACCELERATOR_FACTORIES_H_
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