From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/test/shape-sierpinski.c | 85 +++++++++++++++++++++++++++++++ 1 file changed, 85 insertions(+) create mode 100644 libs/cairo-1.16.0/test/shape-sierpinski.c (limited to 'libs/cairo-1.16.0/test/shape-sierpinski.c') diff --git a/libs/cairo-1.16.0/test/shape-sierpinski.c b/libs/cairo-1.16.0/test/shape-sierpinski.c new file mode 100644 index 0000000..9d20170 --- /dev/null +++ b/libs/cairo-1.16.0/test/shape-sierpinski.c @@ -0,0 +1,85 @@ +/* + * Copyright © 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 + */ + +/* I thought I spied a bug... */ + +#include "cairo-test.h" + +#define WIDTH (1024) +#define HEIGHT (600) + +static const double m_1_sqrt_3 = 0.577359269; + +static void +T (cairo_t *cr, int size) +{ + cairo_move_to (cr, 0, 0); + cairo_line_to (cr, size, 0); + cairo_line_to (cr, size/2, size*m_1_sqrt_3); + + size /= 2; + if (size >= 4) { + T (cr, size); + cairo_save (cr); { + cairo_translate (cr, size, 0); + T (cr, size); + } cairo_restore (cr); + cairo_save (cr); { + cairo_translate (cr, size/2, size*m_1_sqrt_3); + T (cr, size); + } cairo_restore (cr); + } +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_paint (cr); + + cairo_translate (cr, 0, 8); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 1.); + + T (cr, WIDTH); + + cairo_translate (cr, 0, 2*HEIGHT-16); + cairo_scale (cr, 1, -1); + + T (cr, WIDTH); + + cairo_stroke (cr); + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (shape_sierpinski, + "A fractal triangle", + "stroke", /* keywords */ + NULL, /* requirements */ + WIDTH, 2*HEIGHT, + NULL, draw) -- cgit v1.2.1