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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_VIDEO_FRAME_RESOURCE_PROVIDER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_VIDEO_FRAME_RESOURCE_PROVIDER_H_
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "cc/trees/layer_tree_settings.h"
#include "components/viz/client/client_resource_provider.h"
#include "third_party/blink/public/platform/web_video_frame_submitter.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"
namespace media {
class VideoFrame;
class VideoResourceUpdater;
} // namespace media
namespace viz {
class CompositorRenderPass;
class RasterContextProvider;
}
namespace gpu {
class ClientSharedImageInterface;
}
namespace blink {
// VideoFrameResourceProvider obtains required GPU resources for the video
// frame.
// This class is called from the thread to which |context_provider_| is bound.
class PLATFORM_EXPORT VideoFrameResourceProvider {
public:
// |use_sync_primitives| controls whether we ScopedAllowBaseSyncPrimitives
// when calling into |resource_updater_|. It waits, but the cc impl thread
// doesn't seem to mind. It does mind, however, the ScopedAllow. When this
// is run on the media thread, we need to ScopedAllow first.
VideoFrameResourceProvider(const cc::LayerTreeSettings&,
bool use_sync_primitives);
virtual ~VideoFrameResourceProvider();
virtual void Initialize(
viz::RasterContextProvider* media_context_provider,
scoped_refptr<gpu::ClientSharedImageInterface> shared_image_interface);
virtual void AppendQuads(viz::CompositorRenderPass*,
scoped_refptr<media::VideoFrame>,
media::VideoTransformation,
bool is_opaque);
virtual void ReleaseFrameResources();
virtual void ClearFrameResources();
// Once the context is lost, we must call Initialize again before we can
// continue doing work.
void OnContextLost();
bool IsInitialized() { return resource_updater_.get(); }
virtual std::vector<viz::TransferableResource> PrepareSendToParent(
const std::vector<viz::ResourceId>& resource_ids);
virtual void ReceiveReturnsFromParent(
Vector<viz::ReturnedResource> transferable_resources);
private:
const cc::LayerTreeSettings settings_;
raw_ptr<viz::RasterContextProvider> context_provider_;
std::unique_ptr<viz::ClientResourceProvider> resource_provider_;
std::unique_ptr<media::VideoResourceUpdater> resource_updater_;
bool use_sync_primitives_ = false;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_VIDEO_FRAME_RESOURCE_PROVIDER_H_
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