[PATCH xserver/dri2 1/3] Fix glitches in DRI2SwapComplete() and DRI2WakeupClient()

[Mario Kleiner]

DRI2SwapComplete(): Increment pPriv->swap_count++; before calling
into callback for INTEL_swap_events extension, so the swap event
contains the current SBC after swap completion instead of the
previous one.

DRI2WakeupClient: Check for pPriv->target_sbc <= pPriv->swap_count,
had wrong comparison pPriv->target_sbc >= pPriv->swap_count for
unblocking of clients of DRI2WaitSBC().

Signed-off-by: Mario Kleiner <mario.kleiner at tuebingen.mpg.de>
---
 hw/xfree86/dri2/dri2.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/hw/xfree86/dri2/dri2.c b/hw/xfree86/dri2/dri2.c
index 3db826e..baf0df8 100644
--- a/hw/xfree86/dri2/dri2.c
+++ b/hw/xfree86/dri2/dri2.c
@@ -474,7 +474,7 @@ DRI2WakeClient(ClientPtr client, DrawablePtr pDraw, int frame,
      * blocked due to GLX activity during a swap.
      */
     if (pPriv->target_sbc != -1 &&
-	pPriv->target_sbc >= pPriv->swap_count) {
+	pPriv->target_sbc <= pPriv->swap_count) {
 	ProcDRI2WaitMSCReply(client, ((CARD64)tv_sec * 1000000) + tv_usec,
 			     frame, pPriv->swap_count);
 	pPriv->target_sbc = -1;
@@ -511,13 +511,13 @@ DRI2SwapComplete(ClientPtr client, DrawablePtr pDraw, int frame,
 	return;
     }
 
+    pPriv->swapsPending--;
+    pPriv->swap_count++;
+
     ust = ((CARD64)tv_sec * 1000000) + tv_usec;
     if (swap_complete)
 	swap_complete(client, swap_data, type, ust, frame, pPriv->swap_count);
 
-    pPriv->swapsPending--;
-    pPriv->swap_count++;
-
     DRI2WakeClient(client, pDraw, frame, tv_sec, tv_usec);
 }
 
-- 
1.6.6