From: Jakob Bornecrantz <jakob@vmware.com>
Date: Mon, 25 Jan 2010 11:27:47 +0000 (+0100)
Subject: vmware/xorg: Do buffer round-robin logic differently
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6877c5de3c3ff39da514a74928ea270138cddff9;p=mesa.git

vmware/xorg: Do buffer round-robin logic differently
---

diff --git a/src/gallium/winsys/drm/vmware/xorg/vmw_video.c b/src/gallium/winsys/drm/vmware/xorg/vmw_video.c
index b065b96346a..ff3b992d078 100644
--- a/src/gallium/winsys/drm/vmware/xorg/vmw_video.c
+++ b/src/gallium/winsys/drm/vmware/xorg/vmw_video.c
@@ -649,7 +649,8 @@ vmw_video_port_play(ScrnInfoPtr pScrn, struct vmw_video_port *port,
 	return XvBadAlloc;
     }
 
-    port->currBuf = ++port->currBuf & (VMWARE_VID_NUM_BUFFERS - 1);
+    if (++(port->currBuf) >= VMWARE_VID_NUM_BUFFERS)
+	port->currBuf = 0;
 
     return Success;
 }