diff --git a/test/Makefile.am b/test/Makefile.am index be6bd24b2..304eca753 100644 --- a/test/Makefile.am +++ b/test/Makefile.am @@ -12,6 +12,7 @@ clip-fill-rule \ clip-fill-rule-pixel-aligned \ clip-nesting \ clip-operator \ +clip-push-group \ clip-twice \ close-path \ composite-integer-translate-source \ @@ -180,6 +181,7 @@ clip-nesting-rgb24-ref.png \ clip-nesting-ps-argb32-ref.png \ clip-operator-ref.png \ clip-operator-rgb24-ref.png \ +clip-push-group-ref \ clip-twice-ref.png \ clip-twice-rgb24-ref.png \ clip-twice-ps-argb32-ref.png \ diff --git a/test/clip-push-group-ref.png b/test/clip-push-group-ref.png new file mode 100644 index 000000000..acaf4d870 Binary files /dev/null and b/test/clip-push-group-ref.png differ diff --git a/test/clip-push-group.c b/test/clip-push-group.c new file mode 100644 index 000000000..f18d13c77 --- /dev/null +++ b/test/clip-push-group.c @@ -0,0 +1,74 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * Permission to use, copy, modify, distribute, and sell this software + * and its documentation for any purpose is hereby granted without + * fee, provided that the above copyright notice appear in all copies + * and that both that copyright notice and this permission notice + * appear in supporting documentation, and that the name of + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL, + * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER + * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR + * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + * + * Author: Carl D. Worth + */ + +/* A test for the crash described here: + * + * http://lists.freedesktop.org/archives/cairo/2006-August/007698.html + * + * The triggering condition for this bug should be setting a + * surface-based clip and then calling cairo_push_group. + */ + +#include "cairo-test.h" + +#define SIZE 10 + +static cairo_test_draw_function_t draw; + +cairo_test_t test = { + "clip-push-group", + "Test that push_group doesn't crash after setting a surface-based clip", + SIZE, SIZE, + draw +}; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + /* An overly complex way of drawing a blue circle onto a red + * background, to trigger the bug. */ + cairo_set_source_rgb (cr, 1, 0, 0); /* red */ + cairo_paint (cr); + + cairo_arc (cr, + SIZE / 2, SIZE / 2, + SIZE / 2, + 0, 2 * M_PI); + cairo_clip (cr); + + cairo_push_group (cr); + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + cairo_paint (cr); + cairo_pop_group_to_source (cr); + cairo_paint (cr); + + return CAIRO_TEST_SUCCESS; +} + +int +main (void) +{ + return cairo_test (&test); +}