Make sure sources are deleted with the context

Alc/ALc.c

@@ -1013,6 +1013,7 @@ ALCAPI ALCvoid ALCAPIENTRY alcDestroyContext(ALCcontext *context)
         // Lock context
         SuspendContext(context);
 
+        ReleaseALSources(context);
         ReleaseALAuxiliaryEffectSlots(context);
 
         context->Device->Context = NULL;

OpenAL32/Include/alSource.h

@@ -97,6 +97,8 @@ typedef struct ALsource
     struct ALsource *next;
 } ALsource;
 
+ALvoid ReleaseALSources(ALCcontext *Context);
+
 #ifdef __cplusplus
 }
 #endif

OpenAL32/alSource.c

@@ -2272,3 +2272,23 @@ static ALint GetByteOffset(ALsource *pSource)
 
     return lByteOffset;
 }
+
+
+ALvoid ReleaseALSources(ALCcontext *Context)
+{
+#ifdef _DEBUG
+    if(Context->SourceCount > 0)
+        AL_PRINT("exit() %d Source(s) NOT deleted\n", Context->SourceCount);
+#endif
+
+    while(Context->Source)
+    {
+        ALsource *temp = Context->Source;
+        Context->Source = Context->Source->next;
+
+        // Release source structure
+        memset(temp, 0, sizeof(ALsource));
+        free(temp);
+    }
+    Context->SourceCount = 0;
+}