alEvtqNextEvent

lib/src/unknown_0C9C90.c

@@ -4,14 +4,48 @@
 #include "types.h"
 #include "macros.h"
 #include "audio_internal.h"
+#include "libultra_internal.h"
 
 GLOBAL_ASM("lib/asm/non_matchings/unknown_0C9C90/alEvtqFlushType.s")
 
 
 GLOBAL_ASM("lib/asm/non_matchings/unknown_0C9C90/alEvtqPostEvent.s")
-GLOBAL_ASM("lib/asm/non_matchings/unknown_0C9C90/alEvtqNextEvent.s")
+//GLOBAL_ASM("lib/asm/non_matchings/unknown_0C9C90/alEvtqNextEvent.s")
+
+ALMicroTime alEvtqNextEvent(ALEventQueue *evtq, ALEvent *evt) 
+{
+    ALEventListItem *item;
+    ALMicroTime delta;
+    OSIntMask mask;
+
+    mask = osSetIntMask(OS_IM_NONE);
+    
+    item = (ALEventListItem *)evtq->allocList.next;
+
+    if (item)
+    {
+        alUnlink((ALLink *)item);
+        alCopy(&item->evt, evt, sizeof(*evt));
+        alLink((ALLink *)item, &evtq->freeList);
+	delta = item->delta;
+    }
+    else
+    {
+        /* sct 11/28/95 - If we get here, most like we overflowed the event queue */
+	/* with non-self-perpetuating events.  Eg. if we filled the evtq with volume */
+	/* events, then when the seqp is told to play it will handle all the events */
+	/* at once completely emptying out the queue.  At this point this problem */
+	/* must be treated as an out of resource error and the evtq should be increased. */
+	evt->type = -1;
+	delta = 0;	    
+    }
+
+    osSetIntMask(mask);
+    
+    return delta;
+}
+
 
-//GLOBAL_ASM("lib/asm/non_matchings/unknown_0C9C90/alEvtqNew.s")
 void alEvtqNew(ALEventQueue *evtq, ALEventListItem *items, s32 itemCount)
 {
     s32 i;