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-rw-r--r--src/mesa/drivers/dri/r200/r200_ioctl.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/r200/r200_ioctl.c b/src/mesa/drivers/dri/r200/r200_ioctl.c
index 7008832965a..20482a41244 100644
--- a/src/mesa/drivers/dri/r200/r200_ioctl.c
+++ b/src/mesa/drivers/dri/r200/r200_ioctl.c
@@ -477,16 +477,18 @@ void r200CopyBuffer( __DRIdrawablePrivate *dPriv,
if (rect->y2 < b->y2)
b->y2 = rect->y2;
- if (b->x1 < b->x2 && b->y1 < b->y2)
- b++;
+ if (b->x1 >= b->x2 || b->y1 >= b->y2)
+ continue;
}
- else
- b++;
+ b++;
n++;
}
rmesa->sarea->nbox = n;
+ if (!n)
+ continue;
+
ret = drmCommandNone( rmesa->dri.fd, DRM_RADEON_SWAP );
if ( ret ) {