hashirama/xserver
Watch
0
0
Fork
You've already forked xserver
 0
mirror of https://github.com/X11Libre/xserver.git synced 2026-10-14 00:01:20 +00:00
Code Issues Projects Releases Wiki Activity

Use negative strides in Xgl if pixel data have bottom-top scanline order

Browse source
This commit is contained in:
David Reveman 2004-11-05 12:46:29 +00:00
commit 1d994e1d14
4 changed files with 20 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

22
hw/xgl/xglpixmap.c
View file

@ -423,18 +423,30 @@ xglMapPixmapBits (PixmapPtr pPixmap)
{
if (!pPixmap->devPrivate.ptr)
{
CARD8 *bits;
XGL_PIXMAP_PRIV (pPixmap);
if (!pPixmapPriv->buffer)
if (!xglAllocatePixmapBits (pPixmap))
return FALSE;
pPixmap->devKind = pPixmapPriv->stride;
pPixmap->devPrivate.ptr =
glitz_buffer_map (pPixmapPriv->buffer,
GLITZ_BUFFER_ACCESS_READ_WRITE);
if (!pPixmap->devPrivate.ptr)
bits = glitz_buffer_map (pPixmapPriv->buffer,
GLITZ_BUFFER_ACCESS_READ_WRITE);
if (!bits)
return FALSE;
if (XGL_INTERNAL_SCANLINE_ORDER_UPSIDE_DOWN && pPixmapPriv->format)
{
pPixmap->devKind = -pPixmapPriv->stride;
pPixmap->devPrivate.ptr =
bits + (pPixmap->drawable.height - 1) * pPixmapPriv->stride;
}
else
{
pPixmap->devKind = pPixmapPriv->stride;
pPixmap->devPrivate.ptr = bits;
}
}
return TRUE;