Jörg Höhle : winealsa.drv: Fix AudioRenderClient write pointer calculation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 47bc6223e9135bd168c982b6a03ef240eedcae55
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=47bc6223e9135bd168c982b6a03ef240eedcae55

Author: Jörg Höhle <hoehle at users.sourceforge.net>
Date:   Tue Aug  9 23:27:51 2011 +0200

winealsa.drv: Fix AudioRenderClient write pointer calculation.

---

 dlls/winealsa.drv/mmdevdrv.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/dlls/winealsa.drv/mmdevdrv.c b/dlls/winealsa.drv/mmdevdrv.c
index 6c902f5..8ea2f09 100644
--- a/dlls/winealsa.drv/mmdevdrv.c
+++ b/dlls/winealsa.drv/mmdevdrv.c
@@ -2028,8 +2028,8 @@ static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
     }
 
     if(This->buf_state == LOCKED_NORMAL)
-        buffer = This->local_buffer +
-            (This->lcl_offs_frames + This->held_frames) * This->fmt->nBlockAlign;
+        buffer = This->local_buffer + This->fmt->nBlockAlign *
+          ((This->lcl_offs_frames + This->held_frames) % This->bufsize_frames);
     else
         buffer = This->tmp_buffer;