paint_worklet_paint_dispatcher.h | Explore in Territory

// 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 THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_WORKLET_PAINT_DISPATCHER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_WORKLET_PAINT_DISPATCHER_H_

#include <memory>

#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/sequence_checker.h"
#include "base/task/single_thread_task_runner.h"
#include "third_party/blink/renderer/platform/graphics/paint_worklet_painter.h"
#include "third_party/blink/renderer/platform/graphics/platform_paint_worklet_layer_painter.h"
#include "third_party/blink/renderer/platform/heap/cross_thread_persistent.h"
#include "third_party/blink/renderer/platform/wtf/hash_map.h"

namespace blink {

// PaintWorkletPaintDispatcher is responsible for mediating between the raster
// threads and the PaintWorklet thread(s). It receives requests from raster
// threads to paint a paint class instance represented by a PaintWorkletInput,
// dispatches the input to the appropriate PaintWorklet, synchronously receives
// the result, and passes it back to the raster thread.
//
// Each PaintWorklet (there is one per frame, either same-origin or
// same-process-cross-origin) has a backing thread, which may be shared between
// worklets, and a scheduler, which is not shared. All PaintWorklets for a
// single renderer process share one PaintWorkletPaintDispatcher on the
// compositor side.
class PLATFORM_EXPORT PaintWorkletPaintDispatcher { … };

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_WORKLET_PAINT_DISPATCHER_H_
chromium/third_party/blink/renderer/platform/graphics/paint_worklet_paint_dispatcher.h
