src/yuzu/configuration/configure_audio.cpp


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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#include <memory>

#include <QSignalBlocker>

#include "audio_core/sink.h"
#include "audio_core/sink_details.h"
#include "core/core.h"
#include "core/settings.h"
#include "ui_configure_audio.h"
#include "yuzu/configuration/configure_audio.h"

ConfigureAudio::ConfigureAudio(QWidget* parent)
    : QWidget(parent), ui(std::make_unique<Ui::ConfigureAudio>()) {
    ui->setupUi(this);

    InitializeAudioOutputSinkComboBox();

    connect(ui->volume_slider, &QSlider::valueChanged, this,
            &ConfigureAudio::SetVolumeIndicatorText);
    connect(ui->output_sink_combo_box, qOverload<int>(&QComboBox::currentIndexChanged), this,
            &ConfigureAudio::UpdateAudioDevices);

    SetConfiguration();

    const bool is_powered_on = Core::System::GetInstance().IsPoweredOn();
    ui->output_sink_combo_box->setEnabled(!is_powered_on);
    ui->audio_device_combo_box->setEnabled(!is_powered_on);
}

ConfigureAudio::~ConfigureAudio() = default;

void ConfigureAudio::SetConfiguration() {
    SetOutputSinkFromSinkID();

    // The device list cannot be pre-populated (nor listed) until the output sink is known.
    UpdateAudioDevices(ui->output_sink_combo_box->currentIndex());

    SetAudioDeviceFromDeviceID();

    ui->toggle_audio_stretching->setChecked(Settings::values.enable_audio_stretching);
    ui->volume_slider->setValue(Settings::values.volume * ui->volume_slider->maximum());
    SetVolumeIndicatorText(ui->volume_slider->sliderPosition());
}

void ConfigureAudio::SetOutputSinkFromSinkID() {
    [[maybe_unused]] const QSignalBlocker blocker(ui->output_sink_combo_box);

    int new_sink_index = 0;
    const QString sink_id = QString::fromStdString(Settings::values.sink_id);
    for (int index = 0; index < ui->output_sink_combo_box->count(); index++) {
        if (ui->output_sink_combo_box->itemText(index) == sink_id) {
            new_sink_index = index;
            break;
        }
    }

    ui->output_sink_combo_box->setCurrentIndex(new_sink_index);
}

void ConfigureAudio::SetAudioDeviceFromDeviceID() {
    int new_device_index = -1;

    const QString device_id = QString::fromStdString(Settings::values.audio_device_id);
    for (int index = 0; index < ui->audio_device_combo_box->count(); index++) {
        if (ui->audio_device_combo_box->itemText(index) == device_id) {
            new_device_index = index;
            break;
        }
    }

    ui->audio_device_combo_box->setCurrentIndex(new_device_index);
}

void ConfigureAudio::SetVolumeIndicatorText(int percentage) {
    ui->volume_indicator->setText(tr("%1%", "Volume percentage (e.g. 50%)").arg(percentage));
}

void ConfigureAudio::ApplyConfiguration() {
    Settings::values.sink_id =
        ui->output_sink_combo_box->itemText(ui->output_sink_combo_box->currentIndex())
            .toStdString();
    Settings::values.enable_audio_stretching = ui->toggle_audio_stretching->isChecked();
    Settings::values.audio_device_id =
        ui->audio_device_combo_box->itemText(ui->audio_device_combo_box->currentIndex())
            .toStdString();
    Settings::values.volume =
        static_cast<float>(ui->volume_slider->sliderPosition()) / ui->volume_slider->maximum();
}

void ConfigureAudio::changeEvent(QEvent* event) {
    if (event->type() == QEvent::LanguageChange) {
        RetranslateUI();
    }

    QWidget::changeEvent(event);
}

void ConfigureAudio::UpdateAudioDevices(int sink_index) {
    ui->audio_device_combo_box->clear();
    ui->audio_device_combo_box->addItem(QString::fromUtf8(AudioCore::auto_device_name));

    const std::string sink_id = ui->output_sink_combo_box->itemText(sink_index).toStdString();
    for (const auto& device : AudioCore::GetDeviceListForSink(sink_id)) {
        ui->audio_device_combo_box->addItem(QString::fromStdString(device));
    }
}

void ConfigureAudio::InitializeAudioOutputSinkComboBox() {
    ui->output_sink_combo_box->clear();
    ui->output_sink_combo_box->addItem(QString::fromUtf8(AudioCore::auto_device_name));

    for (const char* id : AudioCore::GetSinkIDs()) {
        ui->output_sink_combo_box->addItem(QString::fromUtf8(id));
    }
}

void ConfigureAudio::RetranslateUI() {
    ui->retranslateUi(this);
    SetVolumeIndicatorText(ui->volume_slider->sliderPosition());
}