diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/clip-rectilinear.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/clip-rectilinear.c | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/clip-rectilinear.c b/libs/cairo-1.16.0/test/clip-rectilinear.c new file mode 100644 index 0000000..98db4a2 --- /dev/null +++ b/libs/cairo-1.16.0/test/clip-rectilinear.c @@ -0,0 +1,90 @@ +/* + * Copyright (c) 2011 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> + */ + +#include "cairo-test.h" + +#define SIZE 120 + +static void L(cairo_t *cr, int w, int h) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, 0, h); + cairo_line_to (cr, w, h); + cairo_line_to (cr, w, h/2); + cairo_line_to (cr, w/2, h/2); + cairo_line_to (cr, w/2, 0); + cairo_close_path (cr); +} + +static void LL(cairo_t *cr, int w, int h) +{ + cairo_save (cr); + + /* aligned */ + cairo_rectangle (cr, 0, 0, w, h); + cairo_clip (cr); + L (cr, w, h); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + /* unaligned */ + cairo_translate (cr, w+.25, .25); + cairo_rectangle (cr, 0, 0, w, h); + cairo_clip (cr); + L (cr, w, h); + cairo_clip (cr); + cairo_paint (cr); + cairo_reset_clip (cr); + + cairo_restore (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + int w = SIZE/2, h = SIZE/2; + + cairo_paint (cr); /* opaque background */ + + cairo_set_source_rgb (cr, 1, 0, 0); + LL (cr, w, h); + + cairo_translate (cr, 0, h); + cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE); + + cairo_set_source_rgb (cr, 0, 0, 1); + LL (cr, w, h); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (clip_rectilinear, + "Test handling of rectilinear clipping", + "clip", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) |