Andrew Eikum : winealsa.drv: Fix AudioRenderClient write pointer calculation.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 96aa86c99deeb12ff7c972370e2ca8fe4d1d8161
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=96aa86c99deeb12ff7c972370e2ca8fe4d1d8161

Author: Andrew Eikum <aeikum at codeweavers.com>
Date:   Wed Jul 27 11:50:42 2011 -0500

winealsa.drv: Fix AudioRenderClient write pointer calculation.

---

 dlls/winealsa.drv/mmdevdrv.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/dlls/winealsa.drv/mmdevdrv.c b/dlls/winealsa.drv/mmdevdrv.c
index 4d92b17..dfbba63 100644
--- a/dlls/winealsa.drv/mmdevdrv.c
+++ b/dlls/winealsa.drv/mmdevdrv.c
@@ -1877,8 +1877,7 @@ static HRESULT WINAPI AudioRenderClient_GetBuffer(IAudioRenderClient *iface,
         *data = This->tmp_buffer;
         This->buf_state = LOCKED_WRAPPED;
     }else{
-        *data = This->local_buffer +
-            This->lcl_offs_frames * This->fmt->nBlockAlign;
+        *data = This->local_buffer + write_pos * This->fmt->nBlockAlign;
         This->buf_state = LOCKED_NORMAL;
     }
 
@@ -1924,7 +1923,7 @@ static HRESULT WINAPI AudioRenderClient_ReleaseBuffer(
 
     if(This->buf_state == LOCKED_NORMAL)
         buffer = This->local_buffer +
-            This->lcl_offs_frames * This->fmt->nBlockAlign;
+            (This->lcl_offs_frames + This->held_frames) * This->fmt->nBlockAlign;
     else
         buffer = This->tmp_buffer;