12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879 |
- // 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_LAYERS_UI_RESOURCE_LAYER_H_
- #define CC_LAYERS_UI_RESOURCE_LAYER_H_
- #include <memory>
- #include "cc/cc_export.h"
- #include "cc/layers/layer.h"
- #include "cc/resources/ui_resource_client.h"
- #include "third_party/skia/include/core/SkBitmap.h"
- #include "ui/gfx/geometry/rect.h"
- namespace cc {
- class LayerTreeHost;
- class CC_EXPORT UIResourceLayer : public Layer {
- public:
- static scoped_refptr<UIResourceLayer> Create();
- UIResourceLayer(const UIResourceLayer&) = delete;
- UIResourceLayer& operator=(const UIResourceLayer&) = delete;
- void PushPropertiesTo(LayerImpl* layer,
- const CommitState& commit_state,
- const ThreadUnsafeCommitState& unsafe_state) override;
- void SetLayerTreeHost(LayerTreeHost* host) override;
- // Sets the resource. If they don't exist already, the shared UI resource and
- // ID are generated and cached in a map in the associated UIResourceManager.
- // Currently, this resource will never be released by the UIResourceManager.
- void SetBitmap(const SkBitmap& skbitmap);
- // An alternative way of setting the resource where an ID is used directly. If
- // you use this method, you are responsible for updating the ID if the layer
- // moves between compositors.
- void SetUIResourceId(UIResourceId resource_id);
- // Sets a UV transform to be used at draw time. Defaults to (0, 0) and (1, 1).
- void SetUV(const gfx::PointF& top_left, const gfx::PointF& bottom_right);
- // Sets an opacity value per vertex. It will be multiplied by the layer
- // opacity value.
- void SetVertexOpacity(float bottom_left,
- float top_left,
- float top_right,
- float bottom_right);
- protected:
- UIResourceLayer();
- ~UIResourceLayer() override;
- bool HasDrawableContent() const override;
- UIResourceId resource_id() const { return resource_id_.Read(*this); }
- private:
- std::unique_ptr<LayerImpl> CreateLayerImpl(
- LayerTreeImpl* tree_impl) const override;
- void RecreateUIResourceIdFromBitmap();
- void SetUIResourceIdInternal(UIResourceId resource_id);
- // The resource ID will be zero when it's unset or when there's no associated
- // LayerTreeHost.
- ProtectedSequenceReadable<UIResourceId> resource_id_;
- ProtectedSequenceForbidden<SkBitmap> bitmap_;
- ProtectedSequenceReadable<gfx::PointF> uv_top_left_;
- ProtectedSequenceReadable<gfx::PointF> uv_bottom_right_;
- ProtectedSequenceReadable<float[4]> vertex_opacity_;
- };
- } // namespace cc
- #endif // CC_LAYERS_UI_RESOURCE_LAYER_H_
|