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/*
* Copyright 2019 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 <SkColor.h>
#include <vector>
#include <ftl/small_map.h>
#include <ui/LayerStack.h>
#include <ui/Size.h>
#include <ui/Transform.h>
#include <utils/StrongPointer.h>
#include <scheduler/Fps.h>
class SkCanvas;
namespace android {
class GraphicBuffer;
class SurfaceControl;
class SurfaceFlinger;
// Helper class to delete the SurfaceControl on a helper thread as
// SurfaceControl assumes its destruction happens without SurfaceFlinger::mStateLock held.
class SurfaceControlHolder {
public:
explicit SurfaceControlHolder(sp<SurfaceControl> sc) : mSurfaceControl(std::move(sc)){};
~SurfaceControlHolder();
const sp<SurfaceControl>& get() const { return mSurfaceControl; }
private:
sp<SurfaceControl> mSurfaceControl;
};
class RefreshRateOverlay {
public:
RefreshRateOverlay(FpsRange, bool showSpinner);
void setLayerStack(ui::LayerStack);
void setViewport(ui::Size);
void changeRefreshRate(Fps);
void animate();
private:
using Buffers = std::vector<sp<GraphicBuffer>>;
class SevenSegmentDrawer {
public:
static Buffers draw(int number, SkColor, ui::Transform::RotationFlags, bool showSpinner);
private:
enum class Segment { Upper, UpperLeft, UpperRight, Middle, LowerLeft, LowerRight, Bottom };
static void drawSegment(Segment, int left, SkColor, SkCanvas&);
static void drawDigit(int digit, int left, SkColor, SkCanvas&);
};
const Buffers& getOrCreateBuffers(Fps);
struct Key {
int fps;
ui::Transform::RotationFlags flags;
bool operator==(Key other) const { return fps == other.fps && flags == other.flags; }
};
using BufferCache = ftl::SmallMap<Key, Buffers, 9>;
BufferCache mBufferCache;
std::optional<Fps> mCurrentFps;
size_t mFrame = 0;
const FpsRange mFpsRange; // For color interpolation.
const bool mShowSpinner;
const std::unique_ptr<SurfaceControlHolder> mSurfaceControl;
};
} // namespace android
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