tdesktop/Telegram/SourceFiles/lottie/lottie_single_player.h

74 lines
1.8 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#pragma once
#include "lottie/lottie_player.h"
#include "lottie/lottie_animation.h"
#include "base/timer.h"
#include <rpl/event_stream.h>
namespace Lottie {
class FrameRenderer;
struct DisplayFrameRequest {
};
struct Update {
base::variant<
Information,
DisplayFrameRequest> data;
};
class SinglePlayer final : public Player {
public:
SinglePlayer(
const QByteArray &content,
const FrameRequest &request,
std::shared_ptr<FrameRenderer> renderer = nullptr);
SinglePlayer(
FnMut<void(FnMut<void(QByteArray &&cached)>)> get, // Main thread.
FnMut<void(QByteArray &&cached)> put, // Unknown thread.
const QByteArray &content,
const FrameRequest &request,
std::shared_ptr<FrameRenderer> renderer = nullptr);
~SinglePlayer();
void start(
not_null<Animation*> animation,
std::unique_ptr<SharedState> state) override;
void failed(not_null<Animation*> animation, Error error) override;
void updateFrameRequest(
not_null<const Animation*> animation,
const FrameRequest &request) override;
void markFrameShown() override;
void checkStep() override;
rpl::producer<Update, Error> updates() const;
[[nodiscard]] bool ready() const;
[[nodiscard]] QImage frame() const;
[[nodiscard]] QImage frame(const FrameRequest &request) const;
private:
void checkNextFrameAvailability();
void checkNextFrameRender();
Animation _animation;
base::Timer _timer;
const std::shared_ptr<FrameRenderer> _renderer;
SharedState *_state = nullptr;
crl::time _nextFrameTime = kTimeUnknown;
rpl::event_stream<Update, Error> _updates;
rpl::lifetime _lifetime;
};
} // namespace Lottie