Ticket #3220: null_audio.patch

null_multi.c

@@ -155 +155 @@
 
     parent = create_group_control(data->controls +0, 0, 0, 0, "Record");
     parent = create_group_control(data->controls +1, 1, 0, 0, "Playback");
-    data->control_count = 2;
+    
+    data->controls[2].id = MULTI_AUDIO_BASE_ID + 100;
+    data->controls[2].parent = parent;
+    data->controls[2].flags = B_MULTI_MIX_GAIN;
+    data->controls[2].master = MULTI_AUDIO_MASTER_ID;
+    data->controls[2].string = S_GAIN;
+    data->controls[2].u.gain.min_gain = 0.;
+    data->controls[2].u.gain.max_gain = 100.;
+    data->controls[2].u.gain.granularity = 1.;
+    
+    data->controls[3].id = MULTI_AUDIO_BASE_ID + 200;
+    data->controls[3].parent = parent;
+    data->controls[3].flags = B_MULTI_MIX_GAIN;
+    data->controls[3].master = data->controls[2].id;
+    data->controls[3].string = S_GAIN;
+    data->controls[3].u.gain.min_gain = 0.;
+    data->controls[3].u.gain.max_gain = 100.;
+    data->controls[3].u.gain.granularity = 1.;
 
+    data->control_count = 4;
+
     return B_OK;
 }
 
@@ -334 +353 @@
         case B_MULTI_SET_GLOBAL_FORMAT:         return set_global_format(cookie, arg);
         case B_MULTI_GET_CHANNEL_FORMATS:       return B_ERROR;
         case B_MULTI_SET_CHANNEL_FORMATS:       return B_ERROR;
-        case B_MULTI_GET_MIX:                   return B_ERROR;
-        case B_MULTI_SET_MIX:                   return B_ERROR;
+        case B_MULTI_GET_MIX:                   return B_OK;
+        case B_MULTI_SET_MIX:                   
+        {
+            multi_mix_value_info *info = (multi_mix_value_info *)arg;
+            int i = 0;
+            for(i=0; i < info->item_count; i++) {
+                dprintf("SET_MIX:item #%d id:%d\n", i, info->values[i].id);
+            }
+            return B_OK;
+        }
         case B_MULTI_LIST_MIX_CHANNELS:         return list_mix_channels(cookie, arg);
         case B_MULTI_LIST_MIX_CONTROLS:         return list_mix_controls(cookie, arg);
         case B_MULTI_LIST_MIX_CONNECTIONS:      return list_mix_connections(cookie, arg);