winmm: Don't process audio data during waveOutWrite while playing.

dlls/winmm/tests/wave.c

@@ -1640,7 +1640,6 @@ static void CALLBACK test_reentrant_callback_func(HWAVEOUT hwo, UINT uMsg,
 
         case WOM_DONE:
             /* verify that WOM_DONE is not sent during the following waveOutWrite */
-            todo_wine_if(wom_done_count == 1)
             ok(g_tid == 0, "callback called reentrantly\n");
 
             g_tid = GetCurrentThreadId();

dlls/winmm/waveform.c

@@ -191,6 +191,7 @@ static LRESULT WOD_Close(HWAVEOUT hwave);
 static LRESULT WID_Open(WINMM_OpenInfo *info);
 static LRESULT WID_Close(HWAVEIN hwave);
 static MMRESULT WINMM_BeginPlaying(WINMM_Device *device);
+static void WOD_PushData(WINMM_Device *device);
 
 void WINMM_DeleteWaveform(void)
 {
@@ -775,8 +776,11 @@ static HRESULT reroute_mapper_device(WINMM_Device *device, BOOL is_out)
 
     HeapFree(GetProcessHeap(), 0, info.format);
 
-    if(!stopped)
+    if(!stopped){
+        if(is_out)
+            WOD_PushData(device);
         WINMM_BeginPlaying(device);
+    }
 
     LeaveCriticalSection(&device->lock);
 
@@ -1948,10 +1952,6 @@ static MMRESULT WINMM_BeginPlaying(WINMM_Device *device)
 
     TRACE("(%p)\n", device->handle);
 
-    if(device->render)
-        /* prebuffer data before starting */
-        WOD_PushData(device);
-
     if(device->stopped){
         device->stopped = FALSE;
 
@@ -2893,6 +2893,9 @@ UINT WINAPI waveOutWrite(HWAVEOUT hWaveOut, WAVEHDR *header, UINT uSize)
     header->dwFlags &= ~WHDR_DONE;
     header->dwFlags |= WHDR_INQUEUE;
 
+    if(device->stopped)
+        WOD_PushData(device);
+
     mr = WINMM_BeginPlaying(device);
 
     LeaveCriticalSection(&device->lock);
@@ -2970,6 +2973,9 @@ UINT WINAPI waveOutRestart(HWAVEOUT hWaveOut)
 
     device->stopped = TRUE;
 
+    if(device->render)
+        WOD_PushData(device);
+
     mr = WINMM_BeginPlaying(device);
 
     LeaveCriticalSection(&device->lock);