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