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// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_LAYERS_QUAD_SINK_H_
#define CC_LAYERS_QUAD_SINK_H_
#include "base/memory/scoped_ptr.h"
#include "cc/base/cc_export.h"
namespace gfx {
class Rect;
class Transform;
}
namespace cc {
class DrawQuad;
class LayerImpl;
class RenderPass;
class RenderSurfaceImpl;
class SharedQuadState;
template <typename LayerType>
class OcclusionTracker;
class CC_EXPORT QuadSink {
public:
QuadSink(RenderPass* render_pass,
const OcclusionTracker<LayerImpl>* occlusion_tracker);
~QuadSink() {}
// Call this to add a SharedQuadState before appending quads that refer to it.
// Returns a pointer to the given SharedQuadState, that can be set on the
// quads to append.
virtual SharedQuadState* CreateSharedQuadState();
virtual gfx::Rect UnoccludedContentRect(const gfx::Rect& content_rect,
const gfx::Transform& draw_transform);
virtual gfx::Rect UnoccludedContributingSurfaceContentRect(
const gfx::Rect& content_rect,
const gfx::Transform& draw_transform);
virtual void Append(scoped_ptr<DrawQuad> draw_quad);
protected:
RenderPass* render_pass_;
SharedQuadState* current_shared_quad_state_;
private:
const OcclusionTracker<LayerImpl>* occlusion_tracker_;
DISALLOW_COPY_AND_ASSIGN(QuadSink);
};
} // namespace cc
#endif // CC_LAYERS_QUAD_SINK_H_
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