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| 1 // Copyright 2014 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_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_ | |
| 6 #define CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_ | |
| 7 | |
| 8 #include "base/basictypes.h" | |
| 9 #include "base/memory/scoped_ptr.h" | |
| 10 #include "cc/output/overlay_candidate.h" | |
| 11 #include "cc/output/overlay_processor.h" | |
| 12 #include "cc/quads/render_pass.h" | |
| 13 | |
| 14 namespace cc { | |
| 15 class OverlayCandidateValidator; | |
| 16 class StreamVideoDrawQuad; | |
| 17 class TextureDrawQuad; | |
| 18 | |
| 19 class OverlayStrategySingleOnTop : public OverlayProcessor::Strategy { | |
| 20 public: | |
| 21 OverlayStrategySingleOnTop(OverlayCandidateValidator* capability_checker, | |
| 22 ResourceProvider* resource_provider); | |
| 23 bool Attempt(RenderPassList* render_passes_in_draw_order, | |
| 24 OverlayCandidateList* candidate_list) override; | |
| 25 | |
| 26 private: | |
| 27 bool IsOverlayQuad(const DrawQuad* draw_quad); | |
| 28 bool GetCandidateQuadInfo(const DrawQuad& draw_quad, | |
| 29 OverlayCandidate* quad_info); | |
| 30 | |
| 31 // Returns true if |draw_quad| will not block quads underneath from becoming | |
| 32 // an overlay. | |
| 33 bool IsInvisibleQuad(const DrawQuad* draw_quad); | |
| 34 | |
| 35 bool GetTextureQuadInfo(const TextureDrawQuad& quad, | |
| 36 OverlayCandidate* quad_info); | |
| 37 bool GetVideoQuadInfo(const StreamVideoDrawQuad& quad, | |
| 38 OverlayCandidate* quad_info); | |
| 39 | |
| 40 OverlayCandidateValidator* capability_checker_; | |
| 41 ResourceProvider* resource_provider_; | |
| 42 DISALLOW_COPY_AND_ASSIGN(OverlayStrategySingleOnTop); | |
| 43 }; | |
| 44 | |
| 45 } // namespace cc | |
| 46 | |
| 47 #endif // CC_OUTPUT_OVERLAY_STRATEGY_SINGLE_ON_TOP_H_ | |
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