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Diffstat (limited to 'test/in-fill-empty-trapezoid.c')
| -rw-r--r-- | test/in-fill-empty-trapezoid.c | 109 |
1 files changed, 0 insertions, 109 deletions
diff --git a/test/in-fill-empty-trapezoid.c b/test/in-fill-empty-trapezoid.c deleted file mode 100644 index 0797399c5..000000000 --- a/test/in-fill-empty-trapezoid.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * Copyright © 2006 M Joonas Pihlaja - * - * 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: M Joonas Pihlaja <jpihlaja@cc.helsinki.fi> - */ - -/* Bug history - * - * 2006-12-05 M Joonas Pihlaja <jpihlaja@cc.helsinki.fi> - * - * The cairo_in_fill () function can sometimes produce false - * positives when the tessellator produces empty trapezoids - * and the query point lands exactly on a trapezoid edge. - */ - -#include "cairo-test.h" - -static cairo_test_status_t -preamble (cairo_test_context_t *ctx) -{ - int x,y; - int width = 10; - int height = 10; - cairo_surface_t *surf; - cairo_t *cr; - int false_positive_count = 0; - cairo_status_t status; - cairo_test_status_t ret; - - surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height); - cr = cairo_create (surf); - cairo_surface_destroy (surf); - - /* Empty horizontal trapezoid. */ - cairo_move_to (cr, 0, height/3); - cairo_line_to (cr, width, height/3); - cairo_close_path (cr); - - /* Empty non-horizontal trapezoid #1. */ - cairo_move_to (cr, 0, 0); - cairo_line_to (cr, width, height/2); - cairo_close_path (cr); - - /* Empty non-horizontal trapezoid #2 intersecting #1. */ - cairo_move_to (cr, 0, height/2); - cairo_line_to (cr, width, 0); - cairo_close_path (cr); - - status = cairo_status (cr); - - /* Point sample the tessellated path. */ - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - if (cairo_in_fill (cr, x, y)) { - false_positive_count++; - } - } - } - cairo_destroy (cr); - - /* Check that everything went well. */ - ret = CAIRO_TEST_SUCCESS; - if (CAIRO_STATUS_SUCCESS != status) { - cairo_test_log (ctx, "Failed to create a test surface and path: %s\n", - cairo_status_to_string (status)); - ret = CAIRO_TEST_XFAILURE; - } - - if (0 != false_positive_count) { - cairo_test_log (ctx, "Point sampling found %d false positives " - "from cairo_in_fill()\n", - false_positive_count); - ret = CAIRO_TEST_XFAILURE; - } - - return ret; -} - -/* - * XFAIL: The cairo_in_fill () function can sometimes produce false positives - * when the tessellator produces empty trapezoids and the query point lands - * exactly on a trapezoid edge. - */ -CAIRO_TEST (in_fill_empty_trapezoid, - "Test that the tessellator isn't producing obviously empty trapezoids", - "in, trap", /* keywords */ - NULL, /* requirements */ - 0, 0, - preamble, NULL) |