106 lines
2.5 KiB
C++
106 lines
2.5 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "base/basic_types.h"
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#include "base/weak_ptr.h"
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#include "lottie/lottie_common.h"
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#include "bmscene.h"
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#include <QImage>
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#include <crl/crl_time.h>
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#include <crl/crl_object_on_queue.h>
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#include <limits>
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class BMBase;
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class QImage;
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namespace Lottie {
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class Animation;
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class JsonObject;
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struct Frame {
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QImage original;
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crl::time position = kTimeUnknown;
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crl::time displayed = kTimeUnknown;
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crl::time display = kTimeUnknown;
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FrameRequest request = FrameRequest::NonStrict();
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QImage prepared;
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};
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QImage PrepareFrameByRequest(
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not_null<Frame*> frame,
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bool useExistingPrepared);
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class SharedState {
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public:
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explicit SharedState(const JsonObject &definition);
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void start(not_null<Animation*> owner, crl::time now);
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[[nodiscard]] Information information() const;
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[[nodiscard]] bool initialized() const;
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[[nodiscard]] not_null<Frame*> frameForPaint();
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[[nodiscard]] crl::time nextFrameDisplayTime() const;
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crl::time markFrameDisplayed(crl::time now);
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crl::time markFrameShown();
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void renderFrame(QImage &image, const FrameRequest &request, int index);
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[[nodiscard]] bool renderNextFrame(const FrameRequest &request);
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private:
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void init(QImage cover);
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void renderNextFrame(
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not_null<Frame*> frame,
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const FrameRequest &request);
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[[nodiscard]] not_null<Frame*> getFrame(int index);
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[[nodiscard]] not_null<const Frame*> getFrame(int index) const;
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[[nodiscard]] int counter() const;
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BMScene _scene;
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static constexpr auto kCounterUninitialized = -1;
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std::atomic<int> _counter = kCounterUninitialized;
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static constexpr auto kFramesCount = 4;
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std::array<Frame, kFramesCount> _frames;
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base::weak_ptr<Animation> _owner;
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crl::time _started = kTimeUnknown;
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crl::time _duration = kTimeUnknown;
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int _frameIndex = 0;
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int _framesCount = 0;
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int _frameRate;
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std::atomic<int> _accumulatedDelayMs = 0;
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};
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class FrameRendererObject;
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class FrameRenderer final {
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public:
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static std::shared_ptr<FrameRenderer> Instance();
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void append(std::unique_ptr<SharedState> entry);
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void updateFrameRequest(
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not_null<SharedState*> entry,
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const FrameRequest &request);
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void frameShown(not_null<SharedState*> entry);
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void remove(not_null<SharedState*> state);
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private:
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using Implementation = FrameRendererObject;
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crl::object_on_queue<Implementation> _wrapped;
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};
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} // namespace Lottie
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