Configuration: add option to use DSP LLE

src/citra/config.cpp

@@ -155,6 +155,7 @@ void Config::ReadValues() {
         static_cast<u16>(sdl2_config->GetInteger("Layout", "custom_bottom_bottom", 480));
 
     // Audio
+    Settings::values.enable_dsp_lle = sdl2_config->GetBoolean("Audio", "enable_dsp_lle", false);
     Settings::values.sink_id = sdl2_config->GetString("Audio", "output_engine", "auto");
     Settings::values.enable_audio_stretching =
         sdl2_config->GetBoolean("Audio", "enable_audio_stretching", true);

src/citra/default_ini.h

@@ -167,6 +167,11 @@ custom_bottom_bottom =
 swap_screen =
 
 [Audio]
+
+# Whether or not to enable DSP LLE
+# 0 (default): No, 1: Yes
+enable_dsp_lle =
+
 # Which audio output engine to use.
 # auto (default): Auto-select, null: No audio output, sdl2: SDL2 (if available)
 output_engine =

src/citra_qt/configuration/config.cpp

@@ -136,6 +136,7 @@ void Config::ReadValues() {
     qt_config->endGroup();
 
     qt_config->beginGroup("Audio");
+    Settings::values.enable_dsp_lle = ReadSetting("enable_dsp_lle", false).toBool();
     Settings::values.sink_id = ReadSetting("output_engine", "auto").toString().toStdString();
     Settings::values.enable_audio_stretching =
         ReadSetting("enable_audio_stretching", true).toBool();
@@ -415,6 +416,7 @@ void Config::SaveValues() {
     qt_config->endGroup();
 
     qt_config->beginGroup("Audio");
+    WriteSetting("enable_dsp_lle", Settings::values.enable_dsp_lle, false);
     WriteSetting("output_engine", QString::fromStdString(Settings::values.sink_id), "auto");
     WriteSetting("enable_audio_stretching", Settings::values.enable_audio_stretching, true);
     WriteSetting("output_device", QString::fromStdString(Settings::values.audio_device_id), "auto");

src/citra_qt/configuration/configure_audio.cpp

@@ -6,6 +6,7 @@
 #include "audio_core/sink.h"
 #include "audio_core/sink_details.h"
 #include "citra_qt/configuration/configure_audio.h"
+#include "core/core.h"
 #include "core/settings.h"
 #include "ui_configure_audio.h"
 
@@ -19,6 +20,10 @@ ConfigureAudio::ConfigureAudio(QWidget* parent)
         ui->output_sink_combo_box->addItem(sink_detail.id);
     }
 
+    ui->emulation_combo_box->addItem(tr("HLE (fast)"));
+    ui->emulation_combo_box->addItem(tr("LLE (accurate)"));
+    ui->emulation_combo_box->setEnabled(!Core::System::GetInstance().IsPoweredOn());
+
     connect(ui->volume_slider, &QSlider::valueChanged, this,
             &ConfigureAudio::setVolumeIndicatorText);
 
@@ -41,6 +46,8 @@ void ConfigureAudio::setConfiguration() {
     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());
+
+    ui->emulation_combo_box->setCurrentIndex(Settings::values.enable_dsp_lle ? 1 : 0);
 }
 
 void ConfigureAudio::setOutputSinkFromSinkID() {
@@ -85,6 +92,7 @@ void ConfigureAudio::applyConfiguration() {
             .toStdString();
     Settings::values.volume =
         static_cast<float>(ui->volume_slider->sliderPosition()) / ui->volume_slider->maximum();
+    Settings::values.enable_dsp_lle = ui->emulation_combo_box->currentIndex() == 1;
 }
 
 void ConfigureAudio::updateAudioDevices(int sink_index) {

src/citra_qt/configuration/configure_audio.ui

@@ -6,7 +6,7 @@
    <rect>
     <x>0</x>
     <y>0</y>
-    <width>188</width>
+    <width>240</width>
     <height>246</height>
    </rect>
   </property>
@@ -17,6 +17,23 @@
       <string>Audio</string>
      </property>
      <layout class="QVBoxLayout">
+      <item>
+       <layout class="QHBoxLayout" name="horizontalLayout_emulation">
+        <property name="bottomMargin">
+         <number>0</number>
+        </property>
+        <item>
+         <widget class="QLabel" name="label_emulation">
+          <property name="text">
+           <string>Emulation:</string>
+          </property>
+         </widget>
+        </item>
+        <item>
+         <widget class="QComboBox" name="emulation_combo_box"/>
+        </item>
+       </layout>
+      </item>
       <item>
        <layout class="QHBoxLayout">
         <item>

src/core/core.cpp

@@ -6,6 +6,7 @@
 #include <utility>
 #include "audio_core/dsp_interface.h"
 #include "audio_core/hle/hle.h"
+#include "audio_core/lle/lle.h"
 #include "common/logging/log.h"
 #include "core/arm/arm_interface.h"
 #ifdef ARCHITECTURE_x86_64
@@ -188,7 +189,12 @@ System::ResultStatus System::Init(EmuWindow& emu_window, u32 system_mode) {
         cpu_core = std::make_unique<ARM_DynCom>(*this, USER32MODE);
     }
 
-    dsp_core = std::make_unique<AudioCore::DspHle>(*memory);
+    if (Settings::values.enable_dsp_lle) {
+        dsp_core = std::make_unique<AudioCore::DspLle>();
+    } else {
+        dsp_core = std::make_unique<AudioCore::DspHle>(*memory);
+    }
+
     dsp_core->SetSink(Settings::values.sink_id, Settings::values.audio_device_id);
     dsp_core->EnableStretching(Settings::values.enable_audio_stretching);
 

src/core/settings.cpp

@@ -79,6 +79,7 @@ void LogSettings() {
     LogSetting("Layout_Factor3d", Settings::values.factor_3d);
     LogSetting("Layout_LayoutOption", static_cast<int>(Settings::values.layout_option));
     LogSetting("Layout_SwapScreen", Settings::values.swap_screen);
+    LogSetting("Audio_EnableDspLle", Settings::values.enable_dsp_lle);
     LogSetting("Audio_OutputEngine", Settings::values.sink_id);
     LogSetting("Audio_EnableAudioStretching", Settings::values.enable_audio_stretching);
     LogSetting("Audio_OutputDevice", Settings::values.audio_device_id);

src/core/settings.h

@@ -147,6 +147,7 @@ struct Values {
     u8 factor_3d;
 
     // Audio
+    bool enable_dsp_lle;
     std::string sink_id;
     bool enable_audio_stretching;
     std::string audio_device_id;