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/*
* Copyright © 2009 Intel Corporation
* Copyright © 1998 Keith Packard
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
#include "glamor_priv.h"
/** @file glamor_fillspans.c
*
* GC PolyFillRect implementation, taken straight from fb_fill.c
*/
static Bool
_glamor_poly_fill_rect(DrawablePtr drawable,
GCPtr gc, int nrect, xRectangle * prect, Bool fallback)
{
int fullX1, fullX2, fullY1, fullY2;
int xorg, yorg;
int n;
register BoxPtr pbox;
RegionPtr pClip = fbGetCompositeClip(gc);
Bool ret = FALSE;
xorg = drawable->x;
yorg = drawable->y;
while (nrect--) {
fullX1 = prect->x + xorg;
fullY1 = prect->y + yorg;
fullX2 = fullX1 + (int) prect->width;
fullY2 = fullY1 + (int) prect->height;
n = REGION_NUM_RECTS(pClip);
pbox = REGION_RECTS(pClip);
/*
* clip the rectangle to each box in the clip region
* this is logically equivalent to calling Intersect(),
* but rectangles may overlap each other here.
*/
while (n--) {
int x1 = fullX1;
int x2 = fullX2;
int y1 = fullY1;
int y2 = fullY2;
if (pbox->x1 > x1)
x1 = pbox->x1;
if (pbox->x2 < x2)
x2 = pbox->x2;
if (pbox->y1 > y1)
y1 = pbox->y1;
if (pbox->y2 < y2)
y2 = pbox->y2;
pbox++;
if (x1 >= x2 || y1 >= y2)
continue;
if (!glamor_fill(drawable, gc, x1, y1, x2 - x1,
y2 - y1, fallback)) {
nrect++;
goto fail;
}
}
prect++;
}
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)) {
if (glamor_prepare_access_gc(gc)) {
fbPolyFillRect(drawable, gc, nrect, prect);
glamor_finish_access_gc(gc);
}
glamor_finish_access(drawable, GLAMOR_ACCESS_RW);
}
ret = TRUE;
done:
return ret;
}
void
glamor_poly_fill_rect(DrawablePtr drawable,
GCPtr gc, int nrect, xRectangle * prect)
{
_glamor_poly_fill_rect(drawable, gc, nrect, prect, TRUE);
}
Bool
glamor_poly_fill_rect_nf(DrawablePtr drawable,
GCPtr gc, int nrect, xRectangle * prect)
{
return _glamor_poly_fill_rect(drawable, gc, nrect, prect, FALSE);
}
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