cc/layers/render_surface.h

   1 // Copyright 2010 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
   6 #ifndef CC_LAYERS_RENDER_SURFACE_H_
   7 #define CC_LAYERS_RENDER_SURFACE_H_
   8
   9 #include <vector>
  10
  11 #include "base/basictypes.h"
  12 #include "base/memory/ref_counted.h"
  13 #include "cc/base/cc_export.h"
  14 #include "cc/layers/layer_lists.h"
  15 #include "ui/gfx/geometry/rect.h"
  16 #include "ui/gfx/geometry/rect_f.h"
  17 #include "ui/gfx/transform.h"
  18
  19 namespace cc {
  20
  21 class Layer;
  22
  23 class CC_EXPORT RenderSurface {
  24  public:
  25   explicit RenderSurface(Layer* owning_layer);
  26   ~RenderSurface();
  27
  28   // Returns the rect that encloses the RenderSurfaceImpl including any
  29   // reflection.
  30   gfx::RectF DrawableContentRect() const;
  31
  32   void SetContentRect(const gfx::Rect& content_rect) {
  33       content_rect_ = content_rect;
  34   }
  35   gfx::Rect content_rect() const { return content_rect_; }
  36
  37   void SetDrawOpacity(float opacity) { draw_opacity_ = opacity; }
  38   float draw_opacity() const { return draw_opacity_; }
  39
  40   void SetDrawTransform(const gfx::Transform& draw_transform) {
  41     draw_transform_ = draw_transform;
  42   }
  43   const gfx::Transform& draw_transform() const { return draw_transform_; }
  44
  45   void SetScreenSpaceTransform(const gfx::Transform& screen_space_transform) {
  46     screen_space_transform_ = screen_space_transform;
  47   }
  48   const gfx::Transform& screen_space_transform() const {
  49     return screen_space_transform_;
  50   }
  51
  52   void SetReplicaDrawTransform(const gfx::Transform& replica_draw_transform) {
  53     replica_draw_transform_ = replica_draw_transform;
  54   }
  55   const gfx::Transform& replica_draw_transform() const {
  56     return replica_draw_transform_;
  57   }
  58
  59   void SetReplicaScreenSpaceTransform(
  60       const gfx::Transform& replica_screen_space_transform) {
  61     replica_screen_space_transform_ = replica_screen_space_transform;
  62   }
  63   const gfx::Transform& replica_screen_space_transform() const {
  64     return replica_screen_space_transform_;
  65   }
  66
  67   bool is_clipped() const { return is_clipped_; }
  68   void SetIsClipped(bool is_clipped) { is_clipped_ = is_clipped; }
  69
  70   gfx::Rect clip_rect() const { return clip_rect_; }
  71   void SetClipRect(const gfx::Rect& clip_rect) { clip_rect_ = clip_rect; }
  72
  73   // When false, the RenderSurface does not contribute to another target
  74   // RenderSurface that is being drawn for the current frame. It could still be
  75   // drawn to as a target, but its output will not be a part of any other
  76   // surface.
  77   bool contributes_to_drawn_surface() const {
  78     return contributes_to_drawn_surface_;
  79   }
  80   void set_contributes_to_drawn_surface(bool contributes_to_drawn_surface) {
  81     contributes_to_drawn_surface_ = contributes_to_drawn_surface;
  82   }
  83
  84   LayerList& layer_list() { return layer_list_; }
  85   // A no-op since DelegatedRendererLayers on the main thread don't have any
  86   // RenderPasses so they can't contribute to a surface.
  87   void AddContributingDelegatedRenderPassLayer(Layer* layer) {}
  88
  89   void SetNearestOcclusionImmuneAncestor(RenderSurface* surface) {
  90     nearest_occlusion_immune_ancestor_ = surface;
  91   }
  92   const RenderSurface* nearest_occlusion_immune_ancestor() const {
  93     return nearest_occlusion_immune_ancestor_;
  94   }
  95
  96   void ClearLayerLists();
  97
  98  private:
  99   Layer* owning_layer_;
 100
 101   // Uses this surface's space.
 102   gfx::Rect content_rect_;
 103
 104   float draw_opacity_;
 105   gfx::Transform draw_transform_;
 106   gfx::Transform screen_space_transform_;
 107   gfx::Transform replica_draw_transform_;
 108   gfx::Transform replica_screen_space_transform_;
 109
 110   bool is_clipped_;
 111   bool contributes_to_drawn_surface_;
 112
 113   // Uses the space of the surface's target surface.
 114   gfx::Rect clip_rect_;
 115
 116   LayerList layer_list_;
 117
 118   // The nearest ancestor target surface that will contain the contents of this
 119   // surface, and that ignores outside occlusion. This can point to itself.
 120   RenderSurface* nearest_occlusion_immune_ancestor_;
 121
 122   DISALLOW_COPY_AND_ASSIGN(RenderSurface);
 123 };
 124
 125 }  // namespace cc
 126 #endif  // CC_LAYERS_RENDER_SURFACE_H_