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/**
* Copyright (C) 2023 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include "Utils/OverlayUtils.h"
#include <ui/Size.h>
#include <utils/StrongPointer.h>
class SkCanvas;
namespace android {
class HdrSdrRatioOverlay {
private:
// Effectively making the constructor private, while keeping std::make_unique work
struct ConstructorTag {};
public:
static std::unique_ptr<HdrSdrRatioOverlay> create();
void setLayerStack(ui::LayerStack);
void setViewport(ui::Size);
void animate();
void changeHdrSdrRatio(float currentRatio);
HdrSdrRatioOverlay(ConstructorTag);
private:
bool initCheck() const;
static sp<GraphicBuffer> draw(float currentHdrSdrRatio, SkColor, ui::Transform::RotationFlags,
sp<GraphicBuffer>& ringBufer);
static void drawNumber(float number, int left, SkColor, SkCanvas&);
const sp<GraphicBuffer> getOrCreateBuffers(float currentHdrSdrRatio);
float mCurrentHdrSdrRatio = 1.f;
const std::unique_ptr<SurfaceControlHolder> mSurfaceControl;
size_t mIndex = 0;
std::array<sp<GraphicBuffer>, 2> mRingBuffer;
SurfaceComposerClient::Transaction createTransaction() const;
};
} // namespace android
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