Allow to force audio driver

source/carla_backend.py

@@ -1212,6 +1212,7 @@ class CarlaHostMeta(object):
         self.transportMode     = ENGINE_TRANSPORT_MODE_INTERNAL
         self.nextProcessMode   = ENGINE_PROCESS_MODE_PATCHBAY
         self.processModeForced = False
+        self.audioDriverForced = None
 
         # settings
         self.forceStereo         = False

source/carla_host.py

@@ -2327,10 +2327,11 @@ def loadHostSettings(host):
         return
 
     # enums
-    try:
-        host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)
-    except:
-        host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE
+    if host.audioDriverForced is None:
+        try:
+            host.transportMode = settings.value(CARLA_KEY_ENGINE_TRANSPORT_MODE, CARLA_DEFAULT_TRANSPORT_MODE, type=int)
+        except:
+            host.transportMode = CARLA_DEFAULT_TRANSPORT_MODE
 
     if not host.processModeForced:
         try:
@@ -2430,10 +2431,13 @@ def setEngineSettings(host):
     # driver and device settings
 
     # driver name
-    try:
-        audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)
-    except:
-        audioDriver = CARLA_DEFAULT_AUDIO_DRIVER
+    if host.audioDriverForced is not None:
+        audioDriver = host.audioDriverForced
+    else:
+        try:
+            audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)
+        except:
+            audioDriver = CARLA_DEFAULT_AUDIO_DRIVER
 
     # driver options
     try:

source/carla_settings.py

@@ -261,6 +261,10 @@ class CarlaSettingsW(QDialog):
         if host.isPlugin:
             self.ui.cb_engine_audio_driver.setEnabled(False)
 
+        if host.audioDriverForced is not None:
+            self.ui.cb_engine_audio_driver.setEnabled(False)
+            self.ui.tb_engine_driver_config.setEnabled(False)
+
         if host.processModeForced:
             self.ui.cb_engine_process_mode_jack.setEnabled(False)
             self.ui.cb_engine_process_mode_other.setEnabled(False)
@@ -361,6 +365,9 @@ class CarlaSettingsW(QDialog):
         if self.host.isPlugin:
             audioDriver = "Plugin"
             self.ui.cb_engine_audio_driver.setCurrentIndex(0)
+        elif self.host.audioDriverForced:
+            audioDriver = self.host.audioDriverForced
+            self.ui.cb_engine_audio_driver.setCurrentIndex(0)
         else:
             audioDriver = settings.value(CARLA_KEY_ENGINE_AUDIO_DRIVER, CARLA_DEFAULT_AUDIO_DRIVER, type=str)
 
@@ -376,7 +383,7 @@ class CarlaSettingsW(QDialog):
             self.ui.tb_engine_driver_config.setEnabled(False)
         else:
             self.ui.sw_engine_process_mode.setCurrentIndex(1)
-            self.ui.tb_engine_driver_config.setEnabled(not self.host.isPlugin)
+            self.ui.tb_engine_driver_config.setEnabled(self.host.audioDriverForced is None and not self.host.isPlugin)
 
         self.ui.cb_engine_process_mode_jack.setCurrentIndex(self.host.nextProcessMode)
 
@@ -489,7 +496,7 @@ class CarlaSettingsW(QDialog):
 
         audioDriver = self.ui.cb_engine_audio_driver.currentText()
 
-        if audioDriver and not self.host.isPlugin:
+        if audioDriver and self.host.audioDriverForced is None and not self.host.isPlugin:
             settings.setValue(CARLA_KEY_ENGINE_AUDIO_DRIVER, audioDriver)
 
         if not self.host.processModeForced: