Don't apply this; more survey of alternate sound cards shows that DSP_POST does not work as well as advertised everywhere.
Jer
Jeremy White wrote:
When we get down to the last fragment or two in our output to the DSP, we should use the SND_DSP_POST ioctl to let the sound card know to flush those fragments. This allows us to precisely know when the buffer is empty, and fixes another set of winmm tests.
------------------------------------------------------------------------
Index: dlls/winmm/wineoss/audio.c
===================================================================
RCS file: /home/wine/wine/dlls/winmm/wineoss/audio.c,v
retrieving revision 1.152
diff -u -r1.152 audio.c
--- dlls/winmm/wineoss/audio.c 28 Jan 2005 17:21:07 -0000 1.152
+++ dlls/winmm/wineoss/audio.c 22 Feb 2005 22:17:22 -0000
@@ -1665,12 +1665,13 @@
/* input queue empty and output buffer with less than one fragment to play
* actually some cards do not play the fragment before the last if this one is partially feed
- * so we need to test for full the availability of 2 fragments
+ * so we need to test for full the availability of 2 fragments ; the DSP_POST ioctl
+ * will let the card know to play out the rest of the fragments
*/
if (!wwo->lpPlayPtr && wwo->dwBufferSize < availInQ + 2 * wwo->dwFragmentSize &&
!wwo->bNeedPost) {
- TRACE("Run out of wavehdr:s...\n");
- return INFINITE;
+ TRACE("Run out of wavehdr's, requesting a POST...\n");
+ wwo->bNeedPost = TRUE;
}
/* no more room... no need to try to feed */
