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

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work with negative stride
This commit is contained in:
Dave Airlie 2006-01-18 06:49:17 +00:00
commit 8ccf4f2b8f
2 changed files with 16 additions and 3 deletions
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11
fb/fbgc.c
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@ -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;
}
}