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/*
* Id: fbgetsp.c,v 1.1 1999/11/02 03:54:45 keithp Exp $
*
* Copyright © 1998 Keith Packard
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Keith Packard not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. Keith Packard makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $XFree86: xc/programs/Xserver/fb/fbgetsp.c,v 1.5 2000/05/06 21:09:33 keithp Exp $ */
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "fb.h"
void
fbGetSpans(DrawablePtr pDrawable,
int wMax,
DDXPointPtr ppt,
int *pwidth,
int nspans,
char *pchardstStart)
{
FbBits *src, *dst;
FbStride srcStride;
int srcBpp;
int srcXoff, srcYoff;
int xoff;
/*
* XFree86 DDX empties the root borderClip when the VT is
* switched away; this checks for that case
*/
if (!fbDrawableEnabled(pDrawable))
return;
#ifdef FB_24_32BIT
if (pDrawable->bitsPerPixel != BitsPerPixel(pDrawable->depth))
{
fb24_32GetSpans (pDrawable, wMax, ppt, pwidth, nspans, pchardstStart);
return;
}
#endif
fbGetDrawable (pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
while (nspans--)
{
xoff = (int) (((long) pchardstStart) & (FB_MASK >> 3));
dst = (FbBits *) (pchardstStart - xoff);
xoff <<= 3;
fbBlt (src + (ppt->y + srcYoff) * srcStride, srcStride,
(ppt->x + srcXoff) * srcBpp,
dst,
1,
xoff,
*pwidth * srcBpp,
1,
GXcopy,
FB_ALLONES,
srcBpp,
FALSE,
FALSE);
pchardstStart += PixmapBytePad(*pwidth, pDrawable->depth);
ppt++;
pwidth++;
}
}
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