Settings: Add audio backend, move sync settings to Display/Audio

src/core/settings.cpp

@@ -16,8 +16,6 @@ void Settings::SetDefaults()
   region = ConsoleRegion::Auto;
   cpu_execution_mode = CPUExecutionMode::Interpreter;
 
-  audio_sync_enabled = true;
-  video_sync_enabled = true;
   speed_limiter_enabled = true;
   start_paused = false;
 
@@ -26,8 +24,11 @@ void Settings::SetDefaults()
   gpu_true_color = true;
   gpu_texture_filtering = false;
   gpu_force_progressive_scan = true;
-
   display_linear_filtering = true;
+  video_sync_enabled = true;
+
+  audio_backend = AudioBackend::Default;
+  audio_sync_enabled = true;
 
   bios_path = "scph1001.bin";
   bios_patch_tty_enable = false;
@@ -53,8 +54,6 @@ void Settings::Load(const char* filename)
 
   region = ParseConsoleRegionName(ini.GetValue("Console", "Region", "NTSC-U")).value_or(ConsoleRegion::NTSC_U);
 
-  audio_sync_enabled = ini.GetBoolValue("General", "SyncToAudio", true);
-  video_sync_enabled = ini.GetBoolValue("General", "SyncToVideo", true);
   speed_limiter_enabled = ini.GetBoolValue("General", "SpeedLimiterEnabled", true);
   start_paused = ini.GetBoolValue("General", "StartPaused", false);
 
@@ -67,6 +66,10 @@ void Settings::Load(const char* filename)
   gpu_texture_filtering = ini.GetBoolValue("GPU", "TextureFiltering", false);
 
   display_linear_filtering = ini.GetBoolValue("Display", "LinearFiltering", true);
+  video_sync_enabled = ini.GetBoolValue("Display", "VSync", true);
+
+  audio_backend = ParseAudioBackend(ini.GetValue("Audio", "Backend", "Default")).value_or(AudioBackend::Default);
+  audio_sync_enabled = ini.GetBoolValue("Audio", "Sync", true);
 
   bios_path = ini.GetValue("BIOS", "Path", "scph1001.bin");
   bios_patch_tty_enable = ini.GetBoolValue("BIOS", "PatchTTYEnable", true);
@@ -91,8 +94,6 @@ bool Settings::Save(const char* filename) const
 
   ini.SetValue("Console", "Region", GetConsoleRegionName(region));
 
-  ini.SetBoolValue("General", "SyncToAudio", audio_sync_enabled);
-  ini.SetBoolValue("General", "SyncToVideo", video_sync_enabled);
   ini.SetBoolValue("General", "SpeedLimiterEnabled", speed_limiter_enabled);
   ini.SetBoolValue("General", "StartPaused", start_paused);
 
@@ -100,11 +101,14 @@ bool Settings::Save(const char* filename) const
 
   ini.SetValue("GPU", "Renderer", GetRendererName(gpu_renderer));
   ini.SetLongValue("GPU", "ResolutionScale", static_cast<long>(gpu_resolution_scale));
-  ini.SetBoolValue("GPU", "VSync", video_sync_enabled);
   ini.SetBoolValue("GPU", "TrueColor", gpu_true_color);
   ini.SetBoolValue("GPU", "TextureFiltering", gpu_texture_filtering);
 
   ini.SetBoolValue("Display", "LinearFiltering", display_linear_filtering);
+  ini.SetBoolValue("Display", "VSync", video_sync_enabled);
+
+  ini.SetValue("Audio", "Backend", GetAudioBackendName(audio_backend));
+  ini.SetBoolValue("Audio", "Sync", audio_sync_enabled);
 
   ini.SetValue("BIOS", "Path", bios_path.c_str());
   ini.SetBoolValue("BIOS", "PatchTTYEnable", bios_patch_tty_enable);
@@ -224,6 +228,33 @@ const char* Settings::GetRendererDisplayName(GPURenderer renderer)
   return s_gpu_renderer_display_names[static_cast<int>(renderer)];
 }
 
+static std::array<const char*, 2> s_audio_backend_names = {{"Null", "Default"}};
+static std::array<const char*, 2> s_audio_backend_display_names = {{"Null (No Output)", "Default"}};
+
+std::optional<AudioBackend> Settings::ParseAudioBackend(const char* str)
+{
+  int index = 0;
+  for (const char* name : s_audio_backend_names)
+  {
+    if (strcasecmp(name, str) == 0)
+      return static_cast<AudioBackend>(index);
+
+    index++;
+  }
+
+  return std::nullopt;
+}
+
+const char* Settings::GetAudioBackendName(AudioBackend backend)
+{
+  return s_audio_backend_names[static_cast<int>(backend)];
+}
+
+const char* Settings::GetAudioBackendDisplayName(AudioBackend backend)
+{
+  return s_audio_backend_display_names[static_cast<int>(backend)];
+}
+
 static std::array<const char*, 3> s_controller_type_names = {{"None", "DigitalController", "AnalogController"}};
 static std::array<const char*, 3> s_controller_display_names = {
   {"None", "Digital Controller", "Analog Controller (DualShock)"}};

src/core/settings.h

@@ -14,8 +14,6 @@ struct Settings
 
   bool start_paused = false;
   bool speed_limiter_enabled = true;
-  bool audio_sync_enabled = true;
-  bool video_sync_enabled = true;
 
   GPURenderer gpu_renderer = GPURenderer::Software;
   u32 gpu_resolution_scale = 1;
@@ -25,6 +23,10 @@ struct Settings
   bool gpu_force_progressive_scan = false;
   bool display_linear_filtering = true;
   bool display_fullscreen = false;
+  bool video_sync_enabled = true;
+
+  AudioBackend audio_backend = AudioBackend::Default;
+  bool audio_sync_enabled = true;
 
   struct DebugSettings
   {
@@ -65,6 +67,10 @@ struct Settings
   static const char* GetRendererName(GPURenderer renderer);
   static const char* GetRendererDisplayName(GPURenderer renderer);
 
+  static std::optional<AudioBackend> ParseAudioBackend(const char* str);
+  static const char* GetAudioBackendName(AudioBackend backend);
+  static const char* GetAudioBackendDisplayName(AudioBackend backend);
+
   static std::optional<ControllerType> ParseControllerTypeName(const char* str);
   static const char* GetControllerTypeName(ControllerType type);
   static const char* GetControllerTypeDisplayName(ControllerType type);

src/core/types.h

@@ -47,6 +47,13 @@ enum class GPURenderer : u8
   Count
 };
 
+enum class AudioBackend : u8
+{
+  Null,
+  Default,
+  Count
+};
+
 enum class ControllerType
 {
   None,