Maarten Lankhorst : quartz: Start DirectSound renderer as soon as possible.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: 64b14c0ecdd13530a92ff636c451523a99253a0b
URL:    http://source.winehq.org/git/wine.git/?a=commit;h=64b14c0ecdd13530a92ff636c4...

Author: Maarten Lankhorst 
Date:   Thu Nov 11 14:03:28 2010 +0100

quartz: Start DirectSound renderer as soon as possible.

Makes directsound switch to silent playback even when no buffers are
playing, fixes glitching on starting playback from a stopped buffer.

---

dlls/quartz/dsoundrender.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/dlls/quartz/dsoundrender.c b/dlls/quartz/dsoundrender.c
index d8dd45b..ca58b98 100644
--- a/dlls/quartz/dsoundrender.c
+++ b/dlls/quartz/dsoundrender.c
@@ -457,6 +457,19 @@ HRESULT DSoundRender_create(IUnknown * pUnkOuter, LPVOID * ppv)
             ERR("Cannot create Direct Sound object (%x)\n", hr);
         else
             hr = IDirectSound_SetCooperativeLevel(pDSoundRender->dsound, GetDesktopWindow(), DSSCL_PRIORITY);
+        if (SUCCEEDED(hr)) {
+            IDirectSoundBuffer *buf;
+            DSBUFFERDESC buf_desc;
+            memset(&buf_desc,0,sizeof(DSBUFFERDESC));
+            buf_desc.dwSize = sizeof(DSBUFFERDESC);
+            buf_desc.dwFlags = DSBCAPS_PRIMARYBUFFER;
+            hr = IDirectSound_CreateSoundBuffer(pDSoundRender->dsound, &buf_desc, &buf, NULL);
+            if (SUCCEEDED(hr)) {
+                IDirectSoundBuffer_Play(buf, 0, 0, DSBPLAY_LOOPING);
+                IUnknown_Release(buf);
+            }
+            hr = S_OK;
+        }
     }

if (SUCCEEDED(hr))