115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
/*
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* Copyright © 1998 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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/** @file glamor_fillspans.c
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*
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* FillSpans implementation, taken from fb_fillsp.c
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*/
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#include "glamor_priv.h"
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void
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glamor_fill_spans(DrawablePtr drawable,
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GCPtr gc,
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int n,
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DDXPointPtr points,
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int *widths,
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int sorted)
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{
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RegionPtr clip = gc->pCompositeClip;
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BoxPtr extents, boxes;
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int nbox;
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int extentX1, extentX2, extentY1, extentY2;
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int fullX1, fullX2, fullY1;
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int partX1, partX2;
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if (gc->fillStyle != FillSolid && gc->fillStyle != FillTiled)
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goto fail;
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extents = REGION_EXTENTS(gc->pScreen, clip);
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extentX1 = extents->x1;
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extentY1 = extents->y1;
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extentX2 = extents->x2;
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extentY2 = extents->y2;
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while (n--) {
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fullX1 = points->x;
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fullY1 = points->y;
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fullX2 = fullX1 + *widths;
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points++;
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widths++;
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if (fullY1 < extentY1 || extentY2 <= fullY1)
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continue;
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if (fullX1 < extentX1)
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fullX1 = extentX1;
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if (fullX2 > extentX2)
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fullX2 = extentX2;
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if (fullX1 >= fullX2)
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continue;
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nbox = REGION_NUM_RECTS (clip);
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if (nbox == 1) {
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glamor_fill(drawable,
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gc,
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fullX1, fullY1, fullX2-fullX1, 1);
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} else {
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boxes = REGION_RECTS(clip);
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while(nbox--)
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{
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if (boxes->y1 <= fullY1 && fullY1 < boxes->y2)
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{
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partX1 = boxes->x1;
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if (partX1 < fullX1)
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partX1 = fullX1;
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partX2 = boxes->x2;
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if (partX2 > fullX2)
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partX2 = fullX2;
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if (partX2 > partX1)
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{
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glamor_fill(drawable, gc,
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partX1, fullY1,
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partX2 - partX1, 1);
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}
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}
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boxes++;
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}
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}
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}
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return;
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fail:
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glamor_fallback("glamor_fillspans(): to %p (%c)\n", drawable,
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glamor_get_drawable_location(drawable));
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if (glamor_prepare_access(drawable, GLAMOR_ACCESS_RW)) {
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if (glamor_prepare_access_gc(gc)) {
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fbFillSpans(drawable, gc, n, points, widths, sorted);
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glamor_finish_access_gc(gc);
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}
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glamor_finish_access(drawable);
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}
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}
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