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Diffstat (limited to 'test/device-offset-fractional.c')
| -rw-r--r-- | test/device-offset-fractional.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/test/device-offset-fractional.c b/test/device-offset-fractional.c new file mode 100644 index 000000000..adc21161f --- /dev/null +++ b/test/device-offset-fractional.c @@ -0,0 +1,72 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * 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 + * Red Hat, Inc. not be used in advertising or publicity pertaining to + * distribution of the software without specific, written prior + * permission. Red Hat, Inc. makes no representations about the + * suitability of this software for any purpose. It is provided "as + * is" without express or implied warranty. + * + * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND + * FITNESS, IN NO EVENT SHALL RED HAT, INC. 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: Carl D. Worth <cworth@cworth.org> + * Chris Wilson <chris@chris-wilson.co.uk> + */ + +#include "cairo-test.h" + +#define SIZE 10 +#define PAD 4 +#define COUNT 4 + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface; + cairo_t *cr2; + int i,j; + + /* Fill the background */ + cairo_set_source_rgb (cr, 1, 1, 1); /* white */ + cairo_paint (cr); + + surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, SIZE, SIZE); + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr2, 0, 0, 1); /* blue */ + cairo_paint (cr2); + + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + for (i = 0; i < COUNT; i++) { + for (j = 0; j < COUNT; j++) { + cairo_surface_set_device_offset (surface, + -i*(SIZE+PAD+.5)-PAD, + -j*(SIZE+PAD+.5)-PAD); + cairo_paint (cr); + } + } + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (device_offset_fractional, + "Test using image surfaces with fractional device-offsets as sources.", + "device-offset", /* keywords */ + NULL, /* requirements */ + COUNT*(SIZE+PAD+.5)+PAD, COUNT*(SIZE+PAD+.5)+PAD, + NULL, draw) |