| // Copyright 2014 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_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_ |
| #define CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_ |
| |
| #include "base/basictypes.h" |
| #include "base/memory/scoped_ptr.h" |
| #include "cc/base/cc_export.h" |
| #include "cc/output/overlay_candidate.h" |
| #include "cc/output/overlay_processor.h" |
| #include "cc/quads/render_pass.h" |
| |
| namespace cc { |
| class OverlayCandidateValidator; |
| class StreamVideoDrawQuad; |
| class TextureDrawQuad; |
| |
| class CC_EXPORT OverlayStrategySingleOnTop : public OverlayProcessor::Strategy { |
| public: |
| OverlayStrategySingleOnTop(OverlayCandidateValidator* capability_checker, |
| ResourceProvider* resource_provider); |
| bool Attempt(RenderPassList* render_passes_in_draw_order, |
| OverlayCandidateList* candidate_list) override; |
| |
| private: |
| bool IsOverlayQuad(const DrawQuad* draw_quad); |
| bool GetCandidateQuadInfo(const DrawQuad& draw_quad, |
| OverlayCandidate* quad_info); |
| |
| // Returns true if |draw_quad| will not block quads underneath from becoming |
| // an overlay. |
| bool IsInvisibleQuad(const DrawQuad* draw_quad); |
| |
| bool GetTextureQuadInfo(const TextureDrawQuad& quad, |
| OverlayCandidate* quad_info); |
| bool GetVideoQuadInfo(const StreamVideoDrawQuad& quad, |
| OverlayCandidate* quad_info); |
| |
| OverlayCandidateValidator* capability_checker_; |
| ResourceProvider* resource_provider_; |
| DISALLOW_COPY_AND_ASSIGN(OverlayStrategySingleOnTop); |
| }; |
| |
| } // namespace cc |
| |
| #endif // CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_ |