| // Copyright 2019 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CC_PAINT_PAINT_WORKLET_LAYER_PAINTER_H_ |
| #define CC_PAINT_PAINT_WORKLET_LAYER_PAINTER_H_ |
| |
| #include "base/functional/callback.h" |
| #include "cc/paint/paint_export.h" |
| #include "cc/paint/paint_record.h" |
| #include "cc/paint/paint_worklet_job.h" |
| |
| namespace cc { |
| |
| // PaintWorkletLayerPainter bridges between the compositor and the PaintWorklet |
| // thread, providing hooks for the compositor to paint PaintWorklet content that |
| // Blink has deferred on. |
| class CC_PAINT_EXPORT PaintWorkletLayerPainter { |
| public: |
| virtual ~PaintWorkletLayerPainter() {} |
| |
| // Asynchronously paints a set of PaintWorklet instances. The results are |
| // returned via the provided callback, on the same thread that originally |
| // called this method. |
| // |
| // Only one dispatch is allowed at a time; the calling code should not call |
| // |DispatchWorklets| again until the passed |DoneCallback| has been called. |
| using DoneCallback = base::OnceCallback<void(PaintWorkletJobMap)>; |
| virtual void DispatchWorklets(PaintWorkletJobMap, DoneCallback) = 0; |
| |
| // Returns whether or not a dispatched set of PaintWorklet instances is |
| // currently being painted. |
| virtual bool HasOngoingDispatch() const = 0; |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_PAINT_PAINT_WORKLET_LAYER_PAINTER_H_ |