diff options
Diffstat (limited to 'libs/cairo-1.16.0/test/path-precision.c')
| -rw-r--r-- | libs/cairo-1.16.0/test/path-precision.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/path-precision.c b/libs/cairo-1.16.0/test/path-precision.c new file mode 100644 index 0000000..3a7fb11 --- /dev/null +++ b/libs/cairo-1.16.0/test/path-precision.c @@ -0,0 +1,111 @@ +/* + * 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 = ARRAY_LENGTH (path_data); + 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) |