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_LAYERS_QUAD_SINK_H_ 6 #define CC_LAYERS_QUAD_SINK_H_ 7 8 #include "base/memory/scoped_ptr.h" 9 #include "cc/base/cc_export.h" 10 11 namespace gfx { 12 class Rect; 13 class Transform; 14 } 15 16 namespace cc { 17 18 class DrawQuad; 19 class LayerImpl; 20 class RenderPass; 21 class RenderSurfaceImpl; 22 class SharedQuadState; 23 template <typename LayerType> 24 class OcclusionTracker; 25 26 class CC_EXPORT QuadSink { 27 public: 28 QuadSink(RenderPass* render_pass, 29 const OcclusionTracker<LayerImpl>* occlusion_tracker); 30 ~QuadSink() {} 31 32 // Call this to add a SharedQuadState before appending quads that refer to it. 33 // Returns a pointer to the given SharedQuadState, that can be set on the 34 // quads to append. 35 virtual SharedQuadState* CreateSharedQuadState(); 36 37 virtual gfx::Rect UnoccludedContentRect(const gfx::Rect& content_rect, 38 const gfx::Transform& draw_transform); 39 40 virtual gfx::Rect UnoccludedContributingSurfaceContentRect( 41 const gfx::Rect& content_rect, 42 const gfx::Transform& draw_transform); 43 44 virtual void Append(scoped_ptr<DrawQuad> draw_quad); 45 46 const RenderPass* render_pass() const { return render_pass_; } 47 48 protected: 49 RenderPass* render_pass_; 50 51 SharedQuadState* current_shared_quad_state_; 52 53 private: 54 const OcclusionTracker<LayerImpl>* occlusion_tracker_; 55 56 DISALLOW_COPY_AND_ASSIGN(QuadSink); 57 }; 58 59 } // namespace cc 60 61 #endif // CC_LAYERS_QUAD_SINK_H_ 62
