win32: fix spu wav writer

desmume/ChangeLog

@@ -6,6 +6,7 @@ Graphics:
  bug: fix texture mapping across texture banks [zeromus]
  bug: fix texture handling for texels with MSB set (fixes some texture corruption) [zeromus]
  bug: fix thumb ROR [zeromus]
+ bug: win32: fix spu wav file writer (regression from 0.8) [zeromus]
  enh: dont memcmp for texcache validity when the texture banks arent unmapping [zeromus]
  
 0.8 -> 0.9

desmume/src/SPU.cpp

@@ -1352,7 +1352,7 @@ void SNDFileUpdateAudio(s16 *buffer, u32 num_samples)
 	size_t elems_written;
 	if (spufp) {
 		elems_written = fwrite((void *)buffer, num_samples*2, 2, spufp);
-		INFO("%i written\n", elems_written);
+		//INFO("%i written\n", elems_written);
 	}
 }
 

desmume/src/windows/main.cpp

@@ -946,6 +946,12 @@ DWORD WINAPI run()
 			   	LeaveCriticalSection(&win_sync);
 	
 			   SPU_Emulate_core();
+
+			   //we are driving the dsound output from another thread
+			   //but there is no thread for the filewriter. so we need to do it here
+			   if(sndcoretype == SNDCORE_FILEWRITE)
+				   SPU_Emulate_user();
+
 			   //avi writing
 				DRV_AviSoundUpdate(SPU_core->outbuf,spu_core_samples);
 			   DRV_AviVideoUpdate((u16*)GPU_screen);