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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/large-source-roi.c
parent3dbe9332e47c143a237db12440f134caebd1cfbe (diff)
add cairo
Diffstat (limited to 'libs/cairo-1.16.0/test/large-source-roi.c')
-rw-r--r--libs/cairo-1.16.0/test/large-source-roi.c78
1 files changed, 78 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/large-source-roi.c b/libs/cairo-1.16.0/test/large-source-roi.c
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+++ b/libs/cairo-1.16.0/test/large-source-roi.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2009 Joonas Pihlaja
+ *
+ * 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 the copyright holders not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission. The copyright holders make no representations
+ * about the suitability of this software for any purpose. It is provided "as
+ * is" without express or implied warranty.
+ *
+ * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDERS 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.
+ */
+
+#include "cairo-test.h"
+
+/* This test attempts to trigger failures in those clone_similar
+ * backend methods that have size restrictions. */
+
+static cairo_surface_t *
+create_large_source (int width, int height)
+{
+ cairo_surface_t *surface;
+ cairo_t *cr;
+
+ surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
+ cr = cairo_create (surface);
+ cairo_surface_destroy (surface);
+
+ cairo_set_source_rgb (cr, 1,0,0); /* red */
+ cairo_paint (cr);
+ surface = cairo_surface_reference (cairo_get_target (cr));
+ cairo_destroy (cr);
+
+ return surface;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ cairo_surface_t *source;
+ /* Since 1cc750ed92a936d84b47cac696aaffd226e1c02e pixman will not
+ * paint on the source surface if source_width > 30582. */
+ double source_width = 30000.0;
+
+ cairo_set_source_rgb (cr, 1,1,1);
+ cairo_paint (cr);
+
+ /* Create an excessively wide source image, all red. */
+ source = create_large_source (source_width, height);
+
+ /* Set a transform so that the source is scaled down to fit in the
+ * destination horizontally and then paint the entire source to
+ * the context. */
+ cairo_scale (cr, width/source_width, 1.0);
+ cairo_set_source_surface (cr, source, 0, 0);
+ cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
+ cairo_paint (cr);
+
+ cairo_surface_destroy (source);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (large_source_roi,
+ "Uses a all of a large source image.",
+ "stress, source", /* keywords */
+ NULL, /* requirements */
+ 7, 7,
+ NULL, draw)