| /* |
| * Copyright © 2008 Chris Wilson |
| * |
| * Permission to use, copy, modify, distribute, and sell this software |
| * and its documentation for any purpose is hereby granted without |
| * fee, provided that the above copyright notice appear in all copies |
| * and that both that copyright notice and this permission notice |
| * appear in supporting documentation, and that the name of |
| * Chris Wilson not be used in advertising or publicity pertaining to |
| * distribution of the software without specific, written prior |
| * permission. Chris Wilson makes no representations about the |
| * suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS |
| * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL, |
| * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER |
| * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION |
| * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR |
| * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| * |
| * Author: Chris Wilson <chris@chris-wilson.co.uk> |
| * |
| * Based on an example by Dirk "krit" Schulze found during WebKit integration. |
| */ |
| |
| #include "cairo-test.h" |
| |
| /* we know that this is an inherent limitation in cairo */ |
| #define FAIL CAIRO_TEST_XFAILURE |
| |
| /* Test the idempotency of path construction and copying */ |
| |
| static cairo_test_status_t |
| draw (cairo_t *cr, int width, int height) |
| { |
| cairo_path_data_t path_data[] = { |
| { { CAIRO_PATH_MOVE_TO, 2 }, }, |
| { { 95.000000, 40.000000 }, }, |
| |
| { { CAIRO_PATH_LINE_TO, 2 }, }, |
| { { 94.960533, 41.255810 }, }, |
| |
| { { CAIRO_PATH_LINE_TO, 2 }, }, |
| { { 94.842293, 42.50666 }, }, |
| |
| { { CAIRO_PATH_LINE_TO, 2 }, }, |
| { { 94.645744, 43.747627 }, }, |
| |
| { { CAIRO_PATH_LINE_TO, 2 }, }, |
| { { 94.371666, 44.973797 }, }, |
| }; |
| const cairo_test_context_t *ctx = cairo_test_get_context (cr); |
| cairo_path_t path, *path_copy; |
| int i, j, n; |
| cairo_test_status_t result = CAIRO_TEST_SUCCESS; |
| |
| path.status = CAIRO_STATUS_SUCCESS; |
| path.num_data = sizeof (path_data) / sizeof (path_data[0]); |
| path.data = path_data; |
| |
| cairo_new_path (cr); |
| cairo_append_path (cr, &path); |
| path_copy = cairo_copy_path (cr); |
| |
| if (path_copy->status) |
| return cairo_test_status_from_status (ctx, path_copy->status); |
| |
| for (i = j = n = 0; |
| i < path.num_data && j < path_copy->num_data; |
| i += path.data[i].header.length, |
| j += path_copy->data[j].header.length, |
| n++) |
| { |
| const cairo_path_data_t *src, *dst; |
| |
| src = &path.data[i]; |
| dst = &path_copy->data[j]; |
| |
| if (src->header.type != dst->header.type) { |
| cairo_test_log (ctx, |
| "Paths differ in header type after %d operations.\n" |
| "Expected path operation %d, found %d.\n", |
| n, src->header.type, dst->header.type); |
| result = FAIL; |
| break; |
| } |
| |
| if (memcmp (&src[1].point, &dst[1].point, sizeof (src->point))) { |
| cairo_test_log (ctx, |
| "Paths differ in coordinates after %d operations.\n" |
| "Expected point (%f, %f), found (%f, %f).\n", |
| n, |
| src[1].point.x, src[1].point.y, |
| dst[1].point.x, dst[1].point.y); |
| result = FAIL; |
| break; |
| } |
| } |
| |
| cairo_path_destroy (path_copy); |
| return result; |
| } |
| |
| CAIRO_TEST (path_precision, |
| "Check that the path append/copy is idempotent.", |
| "api", /* keywords */ |
| NULL, /* requirements */ |
| 0, 0, |
| NULL, draw) |