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https://gitlab.freedesktop.org/cairo/cairo.git
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18f3357c99
src/cairo-clip.c src/cairo-gstate.c: Use them. Move code to fill a pixman_region16_t to here. Document. Use _cairo_surface_fill_region(). Add a return status, use regions to simplify. src/cairoint.h Handle the return value from _cairo_surface_composite_fixup_unbounded(). src/cairo-surface.c src/cairoint.h (_cairo_surface_composite_shape_fixup_unbounded): Add a variant of _cairo_surface_composite_fixup_unbounded() to avoid creating a dummy cairo_surface_attributes_t. Use _cairo_surface_composite_shape_fixup_unbounded(). Call _cairo_surface_composite_shape_fixup_unbounded(), since the source might still be restricted, even though the mask is unbounded. Restore the rectangle optizations when drawing with unbounded operators by adding a clear for the extra area after drawing the rectangles.
83 lines
2.7 KiB
C
83 lines
2.7 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2005 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Red Hat, Inc.
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*
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* Contributor(s):
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* Owen Taylor <otaylor@redhat.com>
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*/
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#include <cairoint.h>
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/**
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* _cairo_region_create_from_rectangle:
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* @rect: a #cairo_rectangle_t
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*
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* Creates a region with extents initialized from the given
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* rectangle.
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*
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* Return value: a newly created #pixman_region16_t or %NULL if
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* memory couldn't a allocated.
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**/
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pixman_region16_t *
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_cairo_region_create_from_rectangle (cairo_rectangle_t *rect)
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{
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/* We can't use pixman_region_create_simple(), because it doesn't
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* have an error return
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*/
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pixman_region16_t *region = pixman_region_create ();
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if (pixman_region_union_rect (region, region,
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rect->x, rect->y,
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rect->width, rect->height) != PIXMAN_REGION_STATUS_SUCCESS) {
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pixman_region_destroy (region);
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return NULL;
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}
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return region;
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}
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/**
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* _cairo_region_extents_rectangle:
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* @region: a #pixman_region16_t
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* @rect: rectangle into which to store the extents
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*
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* Gets the bounding box of a region as a cairo_rectangle_t
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**/
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void
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_cairo_region_extents_rectangle (pixman_region16_t *region,
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cairo_rectangle_t *rect)
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{
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pixman_box16_t *region_extents = pixman_region_extents (region);
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rect->x = region_extents->x1;
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rect->y = region_extents->y1;
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rect->width = region_extents->x2 - region_extents->x1;
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rect->height = region_extents->y2 - region_extents->y1;
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}
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