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1 // Copyright 2015 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 COMPONENTS_DISPLAY_COMPOSITOR_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_AND
ROID_H_ | |
6 #define COMPONENTS_DISPLAY_COMPOSITOR_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_AND
ROID_H_ | |
7 | |
8 #include "base/macros.h" | |
9 #include "components/display_compositor/compositor_overlay_candidate_validator.h
" | |
10 #include "components/display_compositor/display_compositor_export.h" | |
11 | |
12 namespace display_compositor { | |
13 | |
14 // An overlay validator for supporting fullscreen video underlays on Android. | |
15 // Things are a bit different on Android compared with other platforms. By the | |
16 // time a video frame is marked as overlayable it means the video decoder was | |
17 // outputting to a Surface that we can't read back from. As a result, the | |
18 // overlay must always succeed, or the video won't be visible. This is one of of | |
19 // the reasons that only fullscreen is supported: we have to be sure that | |
20 // nothing will cause the overlay to be rejected, because there's no fallback to | |
21 // gl compositing. | |
22 class DISPLAY_COMPOSITOR_EXPORT CompositorOverlayCandidateValidatorAndroid | |
23 : public CompositorOverlayCandidateValidator { | |
24 public: | |
25 CompositorOverlayCandidateValidatorAndroid(); | |
26 ~CompositorOverlayCandidateValidatorAndroid() override; | |
27 | |
28 void GetStrategies(cc::OverlayProcessor::StrategyList* strategies) override; | |
29 void CheckOverlaySupport(cc::OverlayCandidateList* surfaces) override; | |
30 bool AllowCALayerOverlays() override; | |
31 bool AllowDCLayerOverlays() override; | |
32 | |
33 void SetSoftwareMirrorMode(bool enabled) override; | |
34 | |
35 private: | |
36 DISALLOW_COPY_AND_ASSIGN(CompositorOverlayCandidateValidatorAndroid); | |
37 }; | |
38 | |
39 } // namespace display_compositor | |
40 | |
41 #endif // COMPONENTS_DISPLAY_COMPOSITOR_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_
ANDROID_H_ | |
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