| // Copyright 2015 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 COMPONENTS_DISPLAY_COMPOSITOR_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_ANDROID_H_ |
| #define COMPONENTS_DISPLAY_COMPOSITOR_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_ANDROID_H_ |
| |
| #include "base/macros.h" |
| #include "components/display_compositor/compositor_overlay_candidate_validator.h" |
| #include "components/display_compositor/display_compositor_export.h" |
| |
| namespace display_compositor { |
| |
| // An overlay validator for supporting fullscreen video underlays on Android. |
| // Things are a bit different on Android compared with other platforms. By the |
| // time a video frame is marked as overlayable it means the video decoder was |
| // outputting to a Surface that we can't read back from. As a result, the |
| // overlay must always succeed, or the video won't be visible. This is one of of |
| // the reasons that only fullscreen is supported: we have to be sure that |
| // nothing will cause the overlay to be rejected, because there's no fallback to |
| // gl compositing. |
| class DISPLAY_COMPOSITOR_EXPORT CompositorOverlayCandidateValidatorAndroid |
| : public CompositorOverlayCandidateValidator { |
| public: |
| CompositorOverlayCandidateValidatorAndroid(); |
| ~CompositorOverlayCandidateValidatorAndroid() override; |
| |
| void GetStrategies(cc::OverlayProcessor::StrategyList* strategies) override; |
| void CheckOverlaySupport(cc::OverlayCandidateList* surfaces) override; |
| bool AllowCALayerOverlays() override; |
| |
| void SetSoftwareMirrorMode(bool enabled) override; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(CompositorOverlayCandidateValidatorAndroid); |
| }; |
| |
| } // namespace display_compositor |
| |
| #endif // COMPONENTS_DISPLAY_COMPOSITOR_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_ANDROID_H_ |