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suyu/src/yuzu/loading_screen.h

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// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <chrono>
#include <memory>
#include <QString>
#include <QWidget>
#if !QT_CONFIG(movie)
#define YUZU_QT_MOVIE_MISSING 1
#endif
namespace Loader {
class AppLoader;
}
namespace Ui {
class LoadingScreen;
}
namespace VideoCore {
enum class LoadCallbackStage;
}
class QBuffer;
class QByteArray;
class QMovie;
class LoadingScreen : public QWidget {
Q_OBJECT
public:
explicit LoadingScreen(QWidget* parent = nullptr);
~LoadingScreen();
/// Call before showing the loading screen to load the widgets with the logo and banner for the
/// currently loaded application.
void Prepare(Loader::AppLoader& loader);
/// After the loading screen is hidden, the owner of this class can call this to clean up any
/// used resources such as the logo and banner.
void Clear();
void OnLoadProgress(VideoCore::LoadCallbackStage stage, std::size_t value, std::size_t total);
// In order to use a custom widget with a stylesheet, you need to override the paintEvent
// See https://wiki.qt.io/How_to_Change_the_Background_Color_of_QWidget
void paintEvent(QPaintEvent* event) override;
signals:
void LoadProgress(VideoCore::LoadCallbackStage stage, std::size_t value, std::size_t total);
private:
#ifndef YUZU_QT_MOVIE_MISSING
std::unique_ptr<QMovie> animation;
std::unique_ptr<QBuffer> backing_buf;
std::unique_ptr<QByteArray> backing_mem;
#endif
std::unique_ptr<Ui::LoadingScreen> ui;
std::size_t previous_total = 0;
VideoCore::LoadCallbackStage previous_stage;
// Definitions for the differences in text and styling for each stage
std::unordered_map<VideoCore::LoadCallbackStage, const char*> progressbar_style;
std::unordered_map<VideoCore::LoadCallbackStage, QString> stage_translations;
// newly generated shaders are added to the end of the file, so when loading and compiling
// shaders, it will start quickly but end slow if new shaders were added since previous launch.
// These variables are used to detect the change in speed so we can generate an ETA
bool slow_shader_compile_start = false;
std::chrono::high_resolution_clock::time_point slow_shader_start;
std::chrono::high_resolution_clock::time_point previous_time;
std::size_t slow_shader_first_value = 0;
};
Q_DECLARE_METATYPE(VideoCore::LoadCallbackStage);