diff --git a/test/Makefile.sources b/test/Makefile.sources index 0fc7c52f6..33d6e81af 100644 --- a/test/Makefile.sources +++ b/test/Makefile.sources @@ -25,6 +25,7 @@ test_sources = \ big-trap.c \ bilevel-image.c \ bug-40410.c \ + bug-361.c \ bug-448.c \ bug-51910.c \ bug-75705.c \ diff --git a/test/bug-361.c b/test/bug-361.c new file mode 100644 index 000000000..a0499223e --- /dev/null +++ b/test/bug-361.c @@ -0,0 +1,111 @@ +/* + * Copyright © 2019 Uli Schlachter + * + * 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" + +/* This is basically gears.shape.arrow */ +static void +shape (cairo_t *cr, double width, double height) +{ + double shaft_length = height / 2; + double shaft_width = width / 2; + double head_width = width; + double head_length = height - shaft_length; + + cairo_move_to (cr, width / 2, 0); + cairo_rel_line_to (cr, head_width / 2, head_length); + cairo_rel_line_to (cr, -(head_width - shaft_width) / 2, 0); + cairo_rel_line_to (cr, 0, shaft_length); + cairo_rel_line_to (cr, -shaft_width, 0); + cairo_rel_line_to (cr, 0, -shaft_length); + cairo_rel_line_to (cr, -(head_width - shaft_width) / 2, 0); + cairo_close_path (cr); +} + +/* This is basically the drawing routine of wibox.container.background */ +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + double bw = 1.5; + + cairo_push_group_with_content (cr, CAIRO_CONTENT_COLOR_ALPHA); + + /* Draw background */ + cairo_set_source_rgb (cr, 0, 0, 1); + cairo_paint (cr); + + /* Create shape */ + cairo_translate (cr, bw, bw); + shape (cr, width - 2 * bw, height - 2 * bw); + cairo_translate (cr, -bw, -bw); + + /* Now do the border */ + + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + + /* Mark everything as "is border" */ + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_paint (cr); + + /* Remove inside of the shape */ + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_set_source_rgba (cr, 0, 0, 0, 0); + cairo_fill_preserve (cr); + + cairo_pattern_t *mask = cairo_pop_group (cr); + + /* Now actually draw the border via the mask */ + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE); + cairo_mask (cr, mask); + + cairo_pattern_destroy (mask); + + /* We now have the right content in a temporary surface. Copy it to the + * target surface. Needs another mask. + */ + cairo_push_group_with_content (cr, CAIRO_CONTENT_ALPHA); + + cairo_set_line_width (cr, 2 * bw); + cairo_set_source_rgba (cr, 0, 0, 0, 1); + cairo_stroke_preserve (cr); + cairo_fill (cr); + + mask = cairo_pop_group (cr); + cairo_pop_group_to_source (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_OVER); + cairo_mask (cr, mask); + + cairo_pattern_destroy (mask); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (bug_361, + "Bug 361 (Problem with SVG backend and masks)", + "mask, operator", /* keywords */ + NULL, /* requirements */ + 100, 100, + NULL, draw) diff --git a/test/meson.build b/test/meson.build index 0a7bf6d3a..4dc976d43 100644 --- a/test/meson.build +++ b/test/meson.build @@ -25,6 +25,7 @@ test_sources = [ 'big-trap.c', 'bilevel-image.c', 'bug-40410.c', + 'bug-361.c', 'bug-448.c', 'bug-51910.c', 'bug-75705.c', diff --git a/test/reference/bug-361.ref.png b/test/reference/bug-361.ref.png new file mode 100644 index 000000000..cf0385049 Binary files /dev/null and b/test/reference/bug-361.ref.png differ