cc/trees/draw_property_utils.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CC_TREES_DRAW_PROPERTY_UTILS_H_
   6 #define CC_TREES_DRAW_PROPERTY_UTILS_H_
   7
   8 #include "cc/base/cc_export.h"
   9 #include "cc/layers/layer_lists.h"
  10
  11 namespace gfx {
  12 class Rect;
  13 class Transform;
  14 }  // namespace gfx
  15
  16 namespace cc {
  17
  18 class ClipTree;
  19 class Layer;
  20 class LayerImpl;
  21 class OpacityTree;
  22 class TransformTree;
  23 class PropertyTrees;
  24
  25 // Computes combined clips for every node in |clip_tree|. This function requires
  26 // that |transform_tree| has been updated via |ComputeTransforms|.
  27 // TODO(vollick): ComputeClips and ComputeTransforms will eventually need to be
  28 // done on both threads.
  29 void CC_EXPORT
  30 ComputeClips(ClipTree* clip_tree, const TransformTree& transform_tree);
  31
  32 // Computes combined (screen space) transforms for every node in the transform
  33 // tree. This must be done prior to calling |ComputeClips|.
  34 void CC_EXPORT ComputeTransforms(TransformTree* transform_tree);
  35
  36 // Computes the visible content rect for every layer under |root_layer|. The
  37 // visible content rect is the clipped content space rect that will be used for
  38 // recording.
  39 void CC_EXPORT
  40 BuildPropertyTreesAndComputeVisibleRects(Layer* root_layer,
  41                                          const Layer* page_scale_layer,
  42                                          float page_scale_factor,
  43                                          float device_scale_factor,
  44                                          const gfx::Rect& viewport,
  45                                          const gfx::Transform& device_transform,
  46                                          PropertyTrees* property_trees,
  47                                          LayerList* update_layer_list);
  48
  49 void CC_EXPORT
  50 BuildPropertyTreesAndComputeVisibleRects(LayerImpl* root_layer,
  51                                          const LayerImpl* page_scale_layer,
  52                                          float page_scale_factor,
  53                                          float device_scale_factor,
  54                                          const gfx::Rect& viewport,
  55                                          const gfx::Transform& device_transform,
  56                                          PropertyTrees* property_trees,
  57                                          LayerImplList* update_layer_list);
  58
  59 void CC_EXPORT
  60 ComputeVisibleRectsUsingPropertyTrees(Layer* root_layer,
  61                                       PropertyTrees* property_trees,
  62                                       LayerList* update_layer_list);
  63
  64 void CC_EXPORT
  65 ComputeVisibleRectsUsingPropertyTrees(LayerImpl* root_layer,
  66                                       PropertyTrees* property_trees,
  67                                       LayerImplList* update_layer_list);
  68
  69 gfx::Transform CC_EXPORT
  70 DrawTransformFromPropertyTrees(const Layer* layer, const TransformTree& tree);
  71
  72 gfx::Transform CC_EXPORT
  73 DrawTransformFromPropertyTrees(const LayerImpl* layer,
  74                                const TransformTree& tree);
  75
  76 gfx::Transform CC_EXPORT
  77 ScreenSpaceTransformFromPropertyTrees(const Layer* layer,
  78                                       const TransformTree& tree);
  79
  80 gfx::Transform CC_EXPORT
  81 ScreenSpaceTransformFromPropertyTrees(const LayerImpl* layer,
  82                                       const TransformTree& tree);
  83
  84 float CC_EXPORT
  85 DrawOpacityFromPropertyTrees(const Layer* layer, const OpacityTree& tree);
  86
  87 float CC_EXPORT
  88 DrawOpacityFromPropertyTrees(const LayerImpl* layer, const OpacityTree& tree);
  89
  90 }  // namespace cc
  91
  92 #endif  // CC_TREES_DRAW_PROPERTY_UTILS_H_