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/*
* 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.
*/
/** @file glamor_fillspans.c
*
* FillSpans implementation, taken from fb_fillsp.c
*/
#include "glamor_priv.h"
static Bool
_glamor_fill_spans(DrawablePtr drawable,
GCPtr gc,
int n, DDXPointPtr points, int *widths, int sorted,
Bool fallback)
{
DDXPointPtr ppt;
int nbox;
BoxPtr pbox;
int x1, x2, y;
RegionPtr pClip = fbGetCompositeClip(gc);
Bool ret = FALSE;
if (gc->fillStyle != FillSolid && gc->fillStyle != FillTiled)
goto fail;
ppt = points;
while (n--) {
x1 = ppt->x;
y = ppt->y;
x2 = x1 + (int) *widths;
ppt++;
widths++;
nbox = REGION_NUM_RECTS(pClip);
pbox = REGION_RECTS(pClip);
while (nbox--) {
int real_x1 = x1, real_x2 = x2;
if (real_x1 < pbox->x1)
real_x1 = pbox->x1;
if (real_x2 > pbox->x2)
real_x2 = pbox->x2;
if (real_x2 > real_x1 && pbox->y1 <= y && pbox->y2 > y) {
if (!glamor_fill(drawable, gc, real_x1, y,
real_x2 - real_x1, 1, fallback))
goto fail;
}
pbox++;
}
}
ret = TRUE;
goto done;
fail:
if (!fallback && glamor_ddx_fallback_check_pixmap(drawable)
&& glamor_ddx_fallback_check_gc(gc)) {
goto done;
}
glamor_fallback("to %p (%c)\n", drawable,
glamor_get_drawable_location(drawable));
if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW) &&
glamor_prepare_access_gc(gc)) {
fbFillSpans(drawable, gc, n, points, widths, sorted);
}
glamor_finish_access_gc(gc);
glamor_finish_access(drawable);
ret = TRUE;
done:
return ret;
}
void
glamor_fill_spans(DrawablePtr drawable,
GCPtr gc, int n, DDXPointPtr points, int *widths, int sorted)
{
_glamor_fill_spans(drawable, gc, n, points, widths, sorted, TRUE);
}
Bool
glamor_fill_spans_nf(DrawablePtr drawable,
GCPtr gc,
int n, DDXPointPtr points, int *widths, int sorted)
{
return _glamor_fill_spans(drawable, gc, n, points, widths, sorted, FALSE);
}
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