From 530ffd0b7d3c39757b20f00716e486b5caf89aff Mon Sep 17 00:00:00 2001 From: sanine Date: Wed, 12 Oct 2022 12:03:23 -0500 Subject: add cairo --- libs/cairo-1.16.0/test/device-offset.c | 82 ++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 libs/cairo-1.16.0/test/device-offset.c (limited to 'libs/cairo-1.16.0/test/device-offset.c') diff --git a/libs/cairo-1.16.0/test/device-offset.c b/libs/cairo-1.16.0/test/device-offset.c new file mode 100644 index 0000000..1bf5283 --- /dev/null +++ b/libs/cairo-1.16.0/test/device-offset.c @@ -0,0 +1,82 @@ +/* + * Copyright © 2006 Red Hat, Inc. + * + * 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 + */ + +#include "cairo-test.h" +#include + +#define SIZE 10 +#define PAD 2 + +static void +draw_square (cairo_t *cr) +{ + cairo_rectangle (cr, + PAD, PAD, + SIZE - 2 * PAD, + SIZE - 2 * PAD); + cairo_fill (cr); +} + +static cairo_test_status_t +draw (cairo_t *cr, int width, int height) +{ + cairo_surface_t *surface, *target; + cairo_t *cr2; + + /* First draw a shape in blue on the original destination. */ + cairo_set_source_rgb (cr, 0, 0, 1); /* blue */ + draw_square (cr); + + /* Then, create an offset surface and repeat the drawing in red. */ + target = cairo_get_group_target (cr); + surface = cairo_surface_create_similar (target, + cairo_surface_get_content (target), + SIZE / 2, SIZE / 2); + cairo_surface_set_device_offset (surface, - SIZE / 2, - SIZE / 2); + cr2 = cairo_create (surface); + cairo_surface_destroy (surface); + + cairo_set_source_rgb (cr2, 1, 0, 0); /* red */ + draw_square (cr2); + + + /* Finally, copy the offset surface to the original destination. + * The final result should be a blue square with the lower-right + * quarter red. */ + cairo_set_source_surface (cr, cairo_get_target (cr2), 0, 0); + cairo_destroy (cr2); + + cairo_paint (cr); + + + return CAIRO_TEST_SUCCESS; +} + +CAIRO_TEST (device_offset, + "Simple test using a surface with a negative device-offset as a source.", + "device-offset", /* keywords */ + NULL, /* requirements */ + SIZE, SIZE, + NULL, draw) -- cgit v1.2.1