diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/clip-shape.c')
-rw-r--r-- | libs/cairo-1.16.0/test/clip-shape.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clip-shape.c b/libs/cairo-1.16.0/test/clip-shape.c new file mode 100644 index 0000000..6a74a6e --- /dev/null +++ b/libs/cairo-1.16.0/test/clip-shape.c @@ -0,0 +1,86 @@ +/* + * Copyright (c) 2010 Intel Corporation + * + * 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. + * + * Author: Chris Wilson <chris@chris-wilson.co.uk> + */ + +/* Adapted from a bug report by <cairouser@yahoo.com> */ + +#include "cairo-test.h" + +static const struct xy { + double x; + double y; +} gp[] = { + { 100, 250 }, + { 100, 100 }, + { 150, 230 }, + { 239, 100 }, + { 239, 250 }, +}; + +static const double vp[3] = { 100, 144, 238.5 }; + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int i; + + cairo_paint (cr); /* opaque background */ + + for (i = 0; i < 5; ++i) + cairo_line_to (cr, gp[i].x, gp[i].y); + cairo_close_path (cr); + + cairo_set_source_rgb (cr, 1, 0, 0); + cairo_set_line_width (cr, 1.5); + cairo_stroke_preserve (cr); + cairo_clip (cr); + + for (i = 1; i < 3; ++i) { + double x1 = vp[i - 1]; + double x2 = vp[i]; + + cairo_move_to (cr, x1, 0); + cairo_line_to (cr, x1, height); + cairo_line_to (cr, x2, height); + cairo_line_to (cr, x2, 0); + cairo_close_path (cr); + + if (i & 1) + cairo_set_source_rgb (cr, 0, 1, 0); + else + cairo_set_source_rgb (cr, 1, 1, 0); + + cairo_fill (cr); + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_shape, + "Test handling of clipping with a non-aligned shape", + "clip", /* keywords */ + NULL, /* requirements */ + 400, 300, + NULL, draw) |