paint_artifact_compositor.h | Explore in Territory

// Copyright 2015 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_COMPOSITING_PAINT_ARTIFACT_COMPOSITOR_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_COMPOSITING_PAINT_ARTIFACT_COMPOSITOR_H_

#include <memory>

#include "base/dcheck_is_on.h"
#include "base/memory/ptr_util.h"
#include "base/memory/scoped_refptr.h"
#include "cc/layers/content_layer_client.h"
#include "cc/layers/layer_collections.h"
#include "cc/layers/picture_layer.h"
#include "cc/trees/property_tree.h"
#include "third_party/blink/renderer/platform/graphics/compositing/layers_as_json.h"
#include "third_party/blink/renderer/platform/graphics/compositing/pending_layer.h"
#include "third_party/blink/renderer/platform/graphics/compositing/property_tree_manager.h"
#include "third_party/blink/renderer/platform/graphics/compositing_reasons.h"
#include "third_party/blink/renderer/platform/graphics/lcd_text_preference.h"
#include "third_party/blink/renderer/platform/graphics/paint/geometry_mapper.h"
#include "third_party/blink/renderer/platform/graphics/paint/paint_chunk_subset.h"
#include "third_party/blink/renderer/platform/graphics/paint/paint_controller.h"
#include "third_party/blink/renderer/platform/graphics/paint/transform_paint_property_node.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_map.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_hash_set.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/hash_set.h"
#include "third_party/blink/renderer/platform/wtf/vector.h"

namespace cc {
class ViewTransitionRequest;
}

namespace blink {

class ContentLayerClientImpl;
class JSONObject;

CompositorScrollCallbacks;

class LayerListBuilder { … };

// This class maintains unique stable cc effect IDs (and optionally a persistent
// mask layer) for reuse across compositing cycles. The mask layer paints a
// rounded rect, which is an updatable parameter of the class. The caller is
// responsible for inserting the mask layer into layer list and associating with
// property nodes. The mask layer may be omitted if the caller determines it is
// not necessary (e.g. because there is no content to mask).
//
// The typical application of the mask layer is to create an isolating effect
// node to paint the clipped contents, and at the end draw the mask layer with
// a kDstIn blend effect. This is why two stable cc effect IDs are provided.
// Even if the mask layer is not present, it's important for the isolation
// effect node to be stable, to minimize render surface damage.
class SynthesizedClip : public cc::ContentLayerClient { … };

// Responsible for managing compositing in terms of a PaintArtifact.
//
// Owns a subtree of the compositor layer tree, and updates it in response to
// changes in the paint artifact.
class PLATFORM_EXPORT PaintArtifactCompositor final
    : public GarbageCollected<PaintArtifactCompositor>,
      private PropertyTreeManagerClient { … };

}  // namespace blink

WTF_ALLOW_INIT_WITH_MEM_FUNCTIONS(…)

#endif  // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_COMPOSITING_PAINT_ARTIFACT_COMPOSITOR_H_
chromium/third_party/blink/renderer/platform/graphics/compositing/paint_artifact_compositor.h
