| // Copyright 2017 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 MEDIA_GPU_ANDROID_PROMOTION_HINT_AGGREGATOR_H_ |
| #define MEDIA_GPU_ANDROID_PROMOTION_HINT_AGGREGATOR_H_ |
| |
| #include "base/bind.h" |
| #include "base/callback.h" |
| #include "base/macros.h" |
| #include "media/gpu/media_gpu_export.h" |
| #include "ui/gfx/geometry/rect.h" |
| |
| namespace media { |
| |
| // Receive lots of promotion hints, and aggregate them into a single signal. A |
| // promotion hint is feedback from the compositor about whether a quad could be |
| // promoted to an overlay, or whether the compositor would refuse to do so. |
| // For example, the compositor won't promote a quad that's rotated, since an |
| // overlay can't do that. |
| class MEDIA_GPU_EXPORT PromotionHintAggregator { |
| public: |
| struct Hint { |
| Hint(const gfx::Rect& _screen_rect, bool _is_promotable) |
| : screen_rect(_screen_rect), is_promotable(_is_promotable) {} |
| gfx::Rect screen_rect; |
| bool is_promotable = false; |
| |
| bool operator==(const Hint& other) const { |
| return other.screen_rect == screen_rect && |
| other.is_promotable == is_promotable; |
| } |
| }; |
| |
| // Pass the hint by value to permit thread-hopping callbacks. |
| using NotifyPromotionHintCB = base::Callback<void(Hint hint)>; |
| |
| virtual ~PromotionHintAggregator() = default; |
| |
| // Notify us that an image has / would be drawn with the given hint. |
| virtual void NotifyPromotionHint(const Hint& hint) = 0; |
| |
| // Returns true if and only if it's probably okay to promote the video. |
| virtual bool IsSafeToPromote() = 0; |
| }; |
| |
| } // namespace media |
| |
| #endif // MEDIA_GPU_ANDROID_PROMOTION_HINT_AGGREGATOR_H_ |