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// Copyright 2014 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_TREES_DRAW_PROPERTY_UTILS_H_
#define CC_TREES_DRAW_PROPERTY_UTILS_H_
#include "cc/cc_export.h"
#include "cc/layers/layer_collections.h"
namespace gfx {
class Transform;
class Vector2dF;
} // namespace gfx
namespace cc {
class Layer;
class LayerImpl;
class LayerTreeHost;
class LayerTreeImpl;
class RenderSurfaceImpl;
class EffectTree;
class TransformTree;
class PropertyTrees;
struct EffectNode;
struct TransformNode;
struct ElementId;
namespace draw_property_utils {
void CC_EXPORT ConcatInverseSurfaceContentsScale(const EffectNode* effect_node,
gfx::Transform* transform);
// Computes combined (screen space) transforms for every node in the transform
// tree. This must be done prior to calling |ComputeClips|.
void CC_EXPORT ComputeTransforms(TransformTree* transform_tree);
// Computes screen space opacity for every node in the opacity tree.
void CC_EXPORT ComputeEffects(EffectTree* effect_tree);
void CC_EXPORT UpdatePropertyTrees(LayerTreeHost* layer_tree_host,
PropertyTrees* property_trees);
void CC_EXPORT
UpdatePropertyTreesAndRenderSurfaces(LayerImpl* root_layer,
PropertyTrees* property_trees);
void CC_EXPORT FindLayersThatNeedUpdates(LayerTreeHost* layer_tree_host,
const PropertyTrees* property_trees,
LayerList* update_layer_list);
void CC_EXPORT
FindLayersThatNeedUpdates(LayerTreeImpl* layer_tree_impl,
const PropertyTrees* property_trees,
std::vector<LayerImpl*>* visible_layer_list);
void CC_EXPORT
ComputeDrawPropertiesOfVisibleLayers(const LayerImplList* layer_list,
PropertyTrees* property_trees);
void CC_EXPORT ComputeMaskDrawProperties(LayerImpl* mask_layer,
PropertyTrees* property_trees);
void CC_EXPORT ComputeSurfaceDrawProperties(PropertyTrees* property_trees,
RenderSurfaceImpl* render_surface);
bool CC_EXPORT LayerShouldBeSkippedForDrawPropertiesComputation(
LayerImpl* layer,
const TransformTree& transform_tree,
const EffectTree& effect_tree);
bool CC_EXPORT LayerNeedsUpdate(Layer* layer,
bool layer_is_drawn,
const PropertyTrees* property_trees);
bool CC_EXPORT LayerNeedsUpdate(LayerImpl* layer,
bool layer_is_drawn,
const PropertyTrees* property_trees);
gfx::Transform CC_EXPORT DrawTransform(const LayerImpl* layer,
const TransformTree& transform_tree,
const EffectTree& effect_tree);
gfx::Transform CC_EXPORT ScreenSpaceTransform(const Layer* layer,
const TransformTree& tree);
gfx::Transform CC_EXPORT ScreenSpaceTransform(const LayerImpl* layer,
const TransformTree& tree);
void CC_EXPORT UpdatePageScaleFactor(PropertyTrees* property_trees,
TransformNode* page_scale_node,
float page_scale_factor);
void CC_EXPORT
UpdateElasticOverscroll(PropertyTrees* property_trees,
const ElementId overscroll_elasticity_element_id,
const gfx::Vector2dF& elastic_overscroll);
} // namespace draw_property_utils
} // namespace cc
#endif // CC_TREES_DRAW_PROPERTY_UTILS_H_