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authorsanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
committersanine <sanine.not@pm.me>2022-10-12 12:03:23 -0500
commit530ffd0b7d3c39757b20f00716e486b5caf89aff (patch)
tree76b35fdf57317038acf6b828871f6ae25fce2ebe /libs/cairo-1.16.0/test/device-offset-positive.c
parent3dbe9332e47c143a237db12440f134caebd1cfbe (diff)
add cairo
Diffstat (limited to 'libs/cairo-1.16.0/test/device-offset-positive.c')
-rw-r--r--libs/cairo-1.16.0/test/device-offset-positive.c82
1 files changed, 82 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/device-offset-positive.c b/libs/cairo-1.16.0/test/device-offset-positive.c
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+++ b/libs/cairo-1.16.0/test/device-offset-positive.c
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+/*
+ * 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 <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+#include <stddef.h>
+
+#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);
+ 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 upper-left
+ * quarter red. */
+ surface = cairo_surface_reference (cairo_get_target (cr2));
+ cairo_destroy (cr2);
+ cairo_surface_set_device_offset (surface, + SIZE / 2, + SIZE / 2);
+ cairo_set_source_surface (cr, surface, SIZE / 2, SIZE / 2);
+ cairo_surface_destroy (surface);
+
+ cairo_paint (cr);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (device_offset_positive,
+ "Simple test using a surface with a positive device-offset as a source.",
+ "device-offset", /* keywords */
+ NULL, /* requirements */
+ SIZE, SIZE,
+ NULL, draw)