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Diffstat (limited to 'test/drunkard-tails.c')
| -rw-r--r-- | test/drunkard-tails.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/test/drunkard-tails.c b/test/drunkard-tails.c deleted file mode 100644 index f55c7becf..000000000 --- a/test/drunkard-tails.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * 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 <chris@chris-wilson.co.uk> - */ - -#include "cairo-test.h" - -#define LINE_WIDTH 10. -#define SIZE (5 * LINE_WIDTH) -#define PAD (3 * LINE_WIDTH) - -static uint32_t state; - -static double -uniform_random (double minval, double maxval) -{ - static uint32_t const poly = 0x9a795537U; - uint32_t n = 32; - while (n-->0) - state = 2*state < state ? (2*state ^ poly) : 2*state; - return minval + state * (maxval - minval) / 4294967296.0; -} - -static void -make_path (cairo_t *cr) -{ - int i; - - state = 0xdeadbeef; - - cairo_move_to (cr, SIZE/2, SIZE/2); - for (i = 0; i < 200; i++) { - double theta = uniform_random (-M_PI, M_PI); - cairo_rel_line_to (cr, - cos (theta) * LINE_WIDTH / 4, - sin (theta) * LINE_WIDTH / 4); - } -} - -static void -draw_caps_joins (cairo_t *cr) -{ - cairo_save (cr); - - cairo_translate (cr, PAD, PAD); - - cairo_reset_clip (cr); - cairo_rectangle (cr, 0, 0, SIZE, SIZE); - cairo_clip (cr); - - make_path (cr); - cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT); - cairo_set_line_join (cr, CAIRO_LINE_JOIN_BEVEL); - cairo_stroke (cr); - - cairo_translate (cr, SIZE + PAD, 0.); - - cairo_reset_clip (cr); - cairo_rectangle (cr, 0, 0, SIZE, SIZE); - cairo_clip (cr); - - make_path (cr); - cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); - cairo_set_line_join (cr, CAIRO_LINE_JOIN_ROUND); - cairo_stroke (cr); - - cairo_translate (cr, SIZE + PAD, 0.); - - cairo_reset_clip (cr); - cairo_rectangle (cr, 0, 0, SIZE, SIZE); - cairo_clip (cr); - - make_path (cr); - cairo_set_line_cap (cr, CAIRO_LINE_CAP_SQUARE); - cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER); - cairo_stroke (cr); - - cairo_restore (cr); -} - -static cairo_test_status_t -draw (cairo_t *cr, int width, int height) -{ - /* We draw in the default black, so paint white first. */ - cairo_save (cr); - cairo_set_source_rgb (cr, 1.0, 1.0, 1.0); /* white */ - cairo_paint (cr); - cairo_restore (cr); - - cairo_set_line_width (cr, LINE_WIDTH); - - draw_caps_joins (cr); - - cairo_save (cr); - /* and reflect to generate the opposite vertex ordering */ - cairo_translate (cr, 0, height); - cairo_scale (cr, 1, -1); - - draw_caps_joins (cr); - cairo_restore (cr); - - cairo_translate (cr, 0, SIZE + PAD); - - return CAIRO_TEST_SUCCESS; -} - -CAIRO_TEST (drunkard_tails, - "Test caps and joins on short tail segments", - "stroke, cap, join", /* keywords */ - NULL, /* requirements */ - 3 * (PAD + SIZE) + PAD, - 2 * (PAD + SIZE) + PAD, - NULL, draw) - |