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test: Add stroke-clipped

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Exercise a bug in the determine of clip-bounds when stroking, as
reported by ed44.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-11-02 14:48:40 +00:00
parent e9d4570584
commit 2dd4ff3206
3 changed files with 55 additions and 0 deletions
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1
test/Makefile.sources
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@ -290,6 +290,7 @@ test_sources = \
scale-source-surface-paint.c \
scaled-font-zero-matrix.c \
stroke-ctm-caps.c \
stroke-clipped.c \
stroke-image.c \
stroke-open-box.c \
select-font-face.c \

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54
test/stroke-clipped.c Normal file
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@ -0,0 +1,54 @@
/*
* 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 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.
*/
#include "cairo-test.h"
#define SIZE 200
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
int row;
cairo_set_source_rgb(cr, 1, 1, 1);
cairo_paint(cr);
cairo_set_source_rgb(cr, 1, 0, 0);
for(row = 0; row < SIZE; row++) {
cairo_rectangle(cr, 0, row, SIZE, 1);
cairo_clip(cr);
cairo_arc(cr, SIZE/2, SIZE/2, SIZE/2-8, 0, 2*M_PI);
cairo_stroke(cr);
cairo_reset_clip(cr);
}
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (stroke_clipped,
"Check that the stroke is accurately drawn through smaller clips",
"stroke", /* keywords */
NULL, /* requirements */
SIZE, SIZE,
NULL, draw)