dsound: Fix buffer caps

[Maarten Lankhorst]

XP reports dwUnlockTransferRate as zero, so we should do the same.

Thanks to Peter Don Tychsen for reporting this.
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>From 7fcfe37ca10c901e0fed6ef065a0eee16503b7ca Mon Sep 17 00:00:00 2001
From: Maarten Lankhorst <m.b.lankhorst at gmail.com>
Date: Wed, 30 May 2007 18:32:35 +0200
Subject: [PATCH] dsound: Buffer caps fix

---
 dlls/dsound/buffer.c  |    7 ++-----
 dlls/dsound/primary.c |    7 ++-----
 2 files changed, 4 insertions(+), 10 deletions(-)

diff --git a/dlls/dsound/buffer.c b/dlls/dsound/buffer.c
index 0eb1ac1..27605d1 100644
--- a/dlls/dsound/buffer.c
+++ b/dlls/dsound/buffer.c
@@ -973,11 +973,8 @@ static HRESULT WINAPI IDirectSoundBufferImpl_GetCaps(
 
 	caps->dwBufferBytes = This->buflen;
 
-	/* This value represents the speed of the "unlock" command.
-	   As unlock is quite fast (it does not do anything), I put
-	   4096 ko/s = 4 Mo / s */
-	/* FIXME: hwbuf speed */
-	caps->dwUnlockTransferRate = 4096;
+	/* According to windows, this is zero*/
+	caps->dwUnlockTransferRate = 0;
 	caps->dwPlayCpuOverhead = 0;
 
 	return DS_OK;
diff --git a/dlls/dsound/primary.c b/dlls/dsound/primary.c
index 3537c1e..d45360e 100644
--- a/dlls/dsound/primary.c
+++ b/dlls/dsound/primary.c
@@ -915,11 +915,8 @@ static HRESULT WINAPI PrimaryBufferImpl_GetCaps(
 
 	caps->dwBufferBytes = device->buflen;
 
-	/* This value represents the speed of the "unlock" command.
-	   As unlock is quite fast (it does not do anything), I put
-	   4096 ko/s = 4 Mo / s */
-	/* FIXME: hwbuf speed */
-	caps->dwUnlockTransferRate = 4096;
+	/* Windows reports these as zero */
+	caps->dwUnlockTransferRate = 0;
 	caps->dwPlayCpuOverhead = 0;
 
 	return DS_OK;
-- 
1.4.4.2