| // 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 CONTENT_BROWSER_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_ANDROID_H_ |
| #define CONTENT_BROWSER_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_ANDROID_H_ |
| |
| #include "base/macros.h" |
| #include "content/browser/compositor/browser_compositor_overlay_candidate_validator.h" |
| #include "content/common/content_export.h" |
| |
| namespace content { |
| |
| // 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 CONTENT_EXPORT BrowserCompositorOverlayCandidateValidatorAndroid |
| : public BrowserCompositorOverlayCandidateValidator { |
| public: |
| BrowserCompositorOverlayCandidateValidatorAndroid(); |
| ~BrowserCompositorOverlayCandidateValidatorAndroid() 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(BrowserCompositorOverlayCandidateValidatorAndroid); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_COMPOSITOR_OVERLAY_CANDIDATE_VALIDATOR_ANDROID_H_ |