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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 CC_RESOURCES_VIDEO_RESOURCE_UPDATER_H_
#define CC_RESOURCES_VIDEO_RESOURCE_UPDATER_H_
#include <vector>
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "cc/resources/texture_mailbox.h"
#include "ui/gfx/size.h"
namespace media {
class SkCanvasVideoRenderer;
class VideoFrame;
}
namespace cc {
class ResourceProvider;
class VideoFrameExternalResources {
public:
// Specifies what type of data is contained in the mailboxes, as well as how
// many mailboxes will be present.
enum ResourceType {
NONE,
YUV_RESOURCE,
RGB_RESOURCE,
STREAM_TEXTURE_RESOURCE,
IO_SURFACE,
#if defined(GOOGLE_TV)
// TODO(danakj): Implement this with a solid color layer instead of a video
// frame and video layer.
HOLE,
#endif
// TODO(danakj): Remove this and abstract TextureMailbox into
// "ExternalResource" that can hold a hardware or software backing.
SOFTWARE_RESOURCE
};
ResourceType type;
std::vector<TextureMailbox> mailboxes;
// TODO(danakj): Remove these when we get a Mailbox from VideoFrame.
unsigned hardware_resource;
TextureMailbox::ReleaseCallback hardware_release_callback;
// TODO(danakj): Remove these too.
std::vector<unsigned> software_resources;
TextureMailbox::ReleaseCallback software_release_callback;
VideoFrameExternalResources();
~VideoFrameExternalResources();
};
// VideoResourceUpdater is by the video system to produce frame content as
// resources consumable by the compositor.
class VideoResourceUpdater
: public base::SupportsWeakPtr<VideoResourceUpdater> {
public:
explicit VideoResourceUpdater(ResourceProvider* resource_provider);
~VideoResourceUpdater();
VideoFrameExternalResources CreateForHardwarePlanes(
const scoped_refptr<media::VideoFrame>& video_frame);
VideoFrameExternalResources CreateForSoftwarePlanes(
const scoped_refptr<media::VideoFrame>& video_frame);
private:
struct PlaneResource {
unsigned resource_id;
gfx::Size resource_size;
unsigned resource_format;
unsigned sync_point;
PlaneResource(unsigned resource_id,
gfx::Size resource_size,
unsigned resource_format,
unsigned sync_point)
: resource_id(resource_id),
resource_size(resource_size),
resource_format(resource_format),
sync_point(sync_point) {}
};
bool VerifyFrame(const scoped_refptr<media::VideoFrame>& video_frame);
struct RecycleResourceData {
unsigned resource_id;
gfx::Size resource_size;
unsigned resource_format;
gpu::Mailbox mailbox;
};
static void RecycleResource(base::WeakPtr<VideoResourceUpdater> updater,
ResourceProvider* resource_provider,
RecycleResourceData data,
unsigned sync_point,
bool lost_resource);
static void ReturnTexture(ResourceProvider* resource_provider,
unsigned resource_id,
unsigned sync_point,
bool lost_resource);
ResourceProvider* resource_provider_;
scoped_ptr<media::SkCanvasVideoRenderer> video_renderer_;
std::vector<PlaneResource> recycled_resources_;
DISALLOW_COPY_AND_ASSIGN(VideoResourceUpdater);
};
} // namespace cc
#endif // CC_RESOURCES_VIDEO_RESOURCE_UPDATER_H_
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