cc/trees/quad_culler.h

   1 // Copyright 2012 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_QUAD_CULLER_H_
   6 #define CC_TREES_QUAD_CULLER_H_
   7
   8 #include "cc/base/cc_export.h"
   9 #include "cc/layers/quad_sink.h"
  10 #include "cc/quads/render_pass.h"
  11
  12 namespace cc {
  13 class LayerImpl;
  14 class RenderSurfaceImpl;
  15 template <typename LayerType>
  16 class OcclusionTracker;
  17
  18 class CC_EXPORT QuadCuller : public QuadSink {
  19  public:
  20   QuadCuller(QuadList* quad_list,
  21              SharedQuadStateList* shared_quad_state_list,
  22              const LayerImpl* layer,
  23              const OcclusionTracker<LayerImpl>& occlusion_tracker);
  24   virtual ~QuadCuller() {}
  25
  26   // QuadSink implementation.
  27   virtual SharedQuadState* UseSharedQuadState(
  28       scoped_ptr<SharedQuadState> shared_quad_state) OVERRIDE;
  29   virtual gfx::Rect UnoccludedContentRect(const gfx::Rect& content_rect,
  30                                           const gfx::Transform& draw_transform)
  31       OVERRIDE;
  32   virtual gfx::Rect UnoccludedContributingSurfaceContentRect(
  33       const gfx::Rect& content_rect,
  34       const gfx::Transform& draw_transform) OVERRIDE;
  35   virtual void Append(scoped_ptr<DrawQuad> draw_quad) OVERRIDE;
  36
  37  private:
  38   QuadList* quad_list_;
  39   SharedQuadStateList* shared_quad_state_list_;
  40   const LayerImpl* layer_;
  41   const OcclusionTracker<LayerImpl>& occlusion_tracker_;
  42
  43   SharedQuadState* current_shared_quad_state_;
  44
  45   DISALLOW_COPY_AND_ASSIGN(QuadCuller);
  46 };
  47
  48 }  // namespace cc
  49
  50 #endif  // CC_TREES_QUAD_CULLER_H_