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
  11 namespace cc {
  12 class LayerImpl;
  13 class RenderPass;
  14 class RenderSurfaceImpl;
  15 template <typename LayerType>
  16 class OcclusionTracker;
  17
  18 class CC_EXPORT QuadCuller : public QuadSink {
  19  public:
  20   QuadCuller(RenderPass* render_pass,
  21              const LayerImpl* layer,
  22              const OcclusionTracker<LayerImpl>& occlusion_tracker);
  23   virtual ~QuadCuller() {}
  24
  25   // QuadSink implementation.
  26   virtual SharedQuadState* CreateSharedQuadState() OVERRIDE;
  27   virtual gfx::Rect UnoccludedContentRect(const gfx::Rect& content_rect,
  28                                           const gfx::Transform& draw_transform)
  29       OVERRIDE;
  30   virtual gfx::Rect UnoccludedContributingSurfaceContentRect(
  31       const gfx::Rect& content_rect,
  32       const gfx::Transform& draw_transform) OVERRIDE;
  33   virtual void Append(scoped_ptr<DrawQuad> draw_quad) OVERRIDE;
  34
  35  private:
  36   RenderPass* render_pass_;
  37   const LayerImpl* layer_;
  38   const OcclusionTracker<LayerImpl>& occlusion_tracker_;
  39
  40   SharedQuadState* current_shared_quad_state_;
  41
  42   DISALLOW_COPY_AND_ASSIGN(QuadCuller);
  43 };
  44
  45 }  // namespace cc
  46
  47 #endif  // CC_TREES_QUAD_CULLER_H_