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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/base/cc_export.h"
#include "cc/layers/layer_collections.h"
namespace gfx {
class Rect;
class Transform;
class Vector2dF;
} // namespace gfx
namespace cc {
class ClipTree;
struct DrawProperties;
class Layer;
class LayerImpl;
class RenderSurfaceImpl;
class EffectTree;
class TransformTree;
class PropertyTrees;
namespace draw_property_utils {
// Computes combined clips for every node in |clip_tree|. This function requires
// that |transform_tree| has been updated via |ComputeTransforms|.
void CC_EXPORT ComputeClips(ClipTree* clip_tree,
const TransformTree& transform_tree,
bool non_root_surfaces_enabled);
// 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);
// Computes the visible content rect for every layer under |root_layer|. The
// visible content rect is the clipped content space rect that will be used for
// recording.
void CC_EXPORT BuildPropertyTreesAndComputeVisibleRects(
Layer* root_layer,
const Layer* page_scale_layer,
const Layer* inner_viewport_scroll_layer,
const Layer* outer_viewport_scroll_layer,
const Layer* overscroll_elasticity_layer,
const gfx::Vector2dF& elastic_overscroll,
float page_scale_factor,
float device_scale_factor,
const gfx::Rect& viewport,
const gfx::Transform& device_transform,
bool can_render_to_separate_surface,
PropertyTrees* property_trees,
LayerList* update_layer_list);
void CC_EXPORT BuildPropertyTreesAndComputeVisibleRects(
LayerImpl* root_layer,
const LayerImpl* page_scale_layer,
const LayerImpl* inner_viewport_scroll_layer,
const LayerImpl* outer_viewport_scroll_layer,
const LayerImpl* overscroll_elasticity_layer,
const gfx::Vector2dF& elastic_overscroll,
float page_scale_factor,
float device_scale_factor,
const gfx::Rect& viewport,
const gfx::Transform& device_transform,
bool can_render_to_separate_surface,
PropertyTrees* property_trees,
LayerImplList* visible_layer_list);
void CC_EXPORT ComputeVisibleRects(Layer* root_layer,
PropertyTrees* property_trees,
bool can_render_to_separate_surface,
LayerList* update_layer_list);
void CC_EXPORT ComputeVisibleRects(LayerImpl* root_layer,
PropertyTrees* property_trees,
bool can_render_to_separate_surface,
LayerImplList* visible_layer_list);
void CC_EXPORT ComputeLayerDrawProperties(LayerImpl* layer,
const PropertyTrees* property_trees,
bool layers_always_allowed_lcd_text,
bool can_use_lcd_text);
void CC_EXPORT ComputeSurfaceDrawProperties(const PropertyTrees* property_trees,
RenderSurfaceImpl* render_surface);
gfx::Transform CC_EXPORT DrawTransform(const Layer* layer,
const TransformTree& tree);
gfx::Transform CC_EXPORT DrawTransform(const LayerImpl* layer,
const TransformTree& 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,
const LayerImpl* page_scale_layer,
float page_scale_factor,
float device_scale_factor,
const gfx::Transform device_transform);
void CC_EXPORT UpdatePageScaleFactor(PropertyTrees* property_trees,
const Layer* page_scale_layer,
float page_scale_factor,
float device_scale_factor,
const gfx::Transform device_transform);
void CC_EXPORT
UpdateElasticOverscroll(PropertyTrees* property_trees,
const LayerImpl* overscroll_elasticity_layer,
const gfx::Vector2dF& elastic_overscroll);
void CC_EXPORT
UpdateElasticOverscroll(PropertyTrees* property_trees,
const Layer* overscroll_elasticity_layer,
const gfx::Vector2dF& elastic_overscroll);
} // namespace draw_property_utils
} // namespace cc
#endif // CC_TREES_DRAW_PROPERTY_UTILS_H_
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