blob: 40cae04287c5ffea36f52ea764cfc29d688db528 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
// Copyright 2014 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 CC_OUTPUT_OVERLAY_STRATEGY_UNDERLAY_H_
#define CC_OUTPUT_OVERLAY_STRATEGY_UNDERLAY_H_
#include "base/macros.h"
#include "cc/output/overlay_processor.h"
namespace cc {
class OverlayCandidateValidator;
// The underlay strategy looks for a video quad without regard to quads above
// it. The video is "underlaid" through a black transparent quad substituted
// for the video quad. The overlay content can then be blended in by the
// hardware under the the scene. This is only valid for overlay contents that
// are fully opaque.
class CC_EXPORT OverlayStrategyUnderlay : public OverlayProcessor::Strategy {
public:
explicit OverlayStrategyUnderlay(
OverlayCandidateValidator* capability_checker);
~OverlayStrategyUnderlay() override;
bool Attempt(ResourceProvider* resource_provider,
RenderPass* render_pass,
OverlayCandidateList* candidate_list) override;
private:
OverlayCandidateValidator* capability_checker_; // Weak.
DISALLOW_COPY_AND_ASSIGN(OverlayStrategyUnderlay);
};
} // namespace cc
#endif // CC_OUTPUT_OVERLAY_STRATEGY_UNDERLAY_H_
|
