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https://gitlab.freedesktop.org/cairo/cairo.git
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973d3a3d14
- Remove cairo_test_expect_failure. cairo-test.c now checks env var CAIRO_XFAIL_TESTS to see if the running test is expected to fail. The reason for expected failure is appended to the test description. - Test description is written out. - Failed/crashed tests also write a line out to stderr (in red), so one can now redirect stdout to /dev/null to only see failures. - cairo_test() has been changed to not take the draw function anymore, instead, draw function is now part of the test struct. - "make check" doesn't allow limiting backends to test using env var anymore. To limit backends to test, one should use the TARGETS variable on the make command line. - "make check-valgrind" now writes its log to valgrind-log instead of valgrind.log, to not interfere with test log file processing.
113 lines
3.1 KiB
C
113 lines
3.1 KiB
C
/*
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* Copyright © 2005 Red Hat, Inc.
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* Copyright © 2006 Red Hat, Inc.
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Red Hat, Inc. not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Red Hat, Inc. makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Carl D. Worth <cworth@cworth.org>
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*/
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#include "cairo-test.h"
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#define PAD 2
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#define SIZE 10
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cairo_test_t test = {
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"fill-and-stroke-alpha-add",
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"Use a group to fill/stroke a path (each with different alpha) using DEST_OUT and ADD to combine",
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2 * SIZE + 4 * PAD, SIZE + 2 * PAD,
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draw
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};
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typedef void (*path_func_t) (cairo_t *cr);
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static void
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rectangle (cairo_t *cr)
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{
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cairo_rectangle (cr, PAD, PAD, SIZE, SIZE);
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}
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static void
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circle (cairo_t *cr)
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{
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cairo_arc (cr,
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PAD + SIZE / 2, PAD + SIZE / 2,
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SIZE / 2,
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0, 2 * M_PI);
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}
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/* Given a path-generating function and two possibly translucent
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* patterns, fill and stroke the path with the patterns (to an
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* offscreen group), then blend the result into the destination.
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*/
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static void
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fill_and_stroke (cairo_t *cr,
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path_func_t path_func,
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cairo_pattern_t *fill_pattern,
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cairo_pattern_t *stroke_pattern)
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{
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cairo_push_group (cr);
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{
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(path_func) (cr);
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cairo_set_source (cr, fill_pattern);
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cairo_fill_preserve (cr);
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/* Use DEST_OUT to subtract stroke from fill. */
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cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
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cairo_set_operator (cr, CAIRO_OPERATOR_DEST_OUT);
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cairo_stroke_preserve (cr);
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/* Then use ADD to draw the stroke without a seam. */
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cairo_set_source (cr, stroke_pattern);
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cairo_set_operator (cr, CAIRO_OPERATOR_ADD);
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cairo_stroke (cr);
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}
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cairo_pop_group_to_source (cr);
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cairo_paint (cr);
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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cairo_pattern_t *blue;
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cairo_pattern_t *red;
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blue = cairo_pattern_create_rgba (0.0, 0.0, 1.0, 0.8);
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red = cairo_pattern_create_rgba (1.0, 0.0, 0.0, 0.2);
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cairo_test_paint_checkered (cr);
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fill_and_stroke (cr, rectangle, blue, red);
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cairo_translate (cr, SIZE + 2 * PAD, 0);
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fill_and_stroke (cr, circle, red, blue);
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cairo_pattern_destroy (blue);
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cairo_pattern_destroy (red);
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return CAIRO_TEST_SUCCESS;
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}
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int
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main (void)
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{
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return cairo_test (&test);
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}
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