R1/2/3/4/5xx: fixed calculation of cliprects in CopyBuffer.

diff --git a/src/mesa/drivers/dri/r200/r200_ioctl.c b/src/mesa/drivers/dri/r200/r200_ioctl.c
index 7008832..20482a4 100644 (file)
--- 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 ) {

diff --git a/src/mesa/drivers/dri/r300/radeon_ioctl.c b/src/mesa/drivers/dri/r300/radeon_ioctl.c
index 31a000d..0c1a195 100644 (file)
--- a/src/mesa/drivers/dri/r300/radeon_ioctl.c
+++ b/src/mesa/drivers/dri/r300/radeon_ioctl.c
@@ -215,16 +215,18 @@ void radeonCopyBuffer(__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++;
                }
                radeon->sarea->nbox = n;
 
+               if (!n)
+                  continue;
+
                ret = drmCommandNone(radeon->dri.fd, DRM_RADEON_SWAP);
 
                if (ret) {

diff --git a/src/mesa/drivers/dri/radeon/radeon_ioctl.c b/src/mesa/drivers/dri/radeon/radeon_ioctl.c
index 078ac9a..446025b 100644 (file)
--- a/src/mesa/drivers/dri/radeon/radeon_ioctl.c
+++ b/src/mesa/drivers/dri/radeon/radeon_ioctl.c
@@ -919,16 +919,18 @@ void radeonCopyBuffer( __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 ) {