This is a fix from David Reveman from the xserver tree, Make fbPadPixmap

    work with negative stride

2 files changed, 16 insertions, 3 deletions

diff --git a/ChangeLog b/ChangeLog
index 8e753f66f..f6919d6a2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2006-01-18  Dave Airlie  <airlied@linux.ie>
+
+	reviewed by: keithp, ajax, anholt (well they all read it...)
+
+	* fb/fbgc.c: (fbPadPixmap):
+	This is a fix from David Reveman from the xserver tree,
+	Make fbPadPixmap work with negative stride
+
 Thu Jan 12 17:09:18 2006  Søren Sandmann  <sandmann@redhat.com>
 
 	* include/window.[ch]: Add new functions to enable and disable
diff --git a/fb/fbgc.c b/fb/fbgc.c
index 4c581a630..5a0d0bcb3 100644
--- a/fb/fbgc.c
+++ b/fb/fbgc.c
@@ -21,7 +21,7 @@
  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  * PERFORMANCE OF THIS SOFTWARE.
  */
-/* $XdotOrg: xc/programs/Xserver/fb/fbgc.c,v 1.3 2004/12/04 00:42:50 kuhn Exp $ */
+/* $XdotOrg: xserver/xorg/fb/fbgc.c,v 1.5 2005/07/03 07:01:23 daniels Exp $ */
 /* $XFree86: xc/programs/Xserver/fb/fbgc.c,v 1.14 2003/12/18 15:22:32 alanh Exp $ */
 
 #ifdef HAVE_DIX_CONFIG_H
@@ -101,9 +101,13 @@ fbPadPixmap (PixmapPtr pPixmap)
     FbBits  mask;
     int	    height;
     int	    w;
+    int     stride;
+    int     bpp;
+    int     xOff, yOff;
+
+    fbGetDrawable (&pPixmap->drawable, bits, stride, bpp, xOff, yOff);
 
     width = pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel;
-    bits = pPixmap->devPrivate.ptr;
     height = pPixmap->drawable.height;
     mask = FbBitsMask (0, width);
     while (height--)
@@ -115,7 +119,8 @@ fbPadPixmap (PixmapPtr pPixmap)
 	    b = b | FbScrRight(b, w);
 	    w <<= 1;
 	}
-	*bits++ = b;
+	*bits = b;
+	bits += stride;
     }
 }