[cairo-commit] test/Makefile.sources test/negative-stride-image.c test/reference
Andrea Canciani
ranma42 at kemper.freedesktop.org
Thu Jan 12 03:00:00 PST 2012
test/Makefile.sources | 1
test/negative-stride-image.c | 71 +++++++++++++++++++
test/reference/negative-stride-image.image16.ref.png |binary
test/reference/negative-stride-image.ps.ref.png |binary
test/reference/negative-stride-image.ref.png |binary
5 files changed, 72 insertions(+)
New commits:
commit 45d9659665fbce3484228ce5d4d94ac483f894e6
Author: Andrea Canciani <ranma42 at gmail.com>
Date: Fri Jan 6 16:41:41 2012 +0100
test: Add negative-stride-image
Add a test to check that all the backends can handle images with
negative stride.
diff --git a/test/Makefile.sources b/test/Makefile.sources
index 54a2dae..a76f37f 100644
--- a/test/Makefile.sources
+++ b/test/Makefile.sources
@@ -210,6 +210,7 @@ test_sources = \
mime-surface-api.c \
miter-precision.c \
move-to-show-surface.c \
+ negative-stride-image.c \
new-sub-path.c \
nil-surface.c \
operator.c \
diff --git a/test/negative-stride-image.c b/test/negative-stride-image.c
new file mode 100644
index 0000000..a407b8c
--- /dev/null
+++ b/test/negative-stride-image.c
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2012 Andrea Canciani
+ *
+ * Permission is hereby granted, free of charge, to any person
+ * obtaining a copy of this software and associated documentation
+ * files (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy,
+ * modify, merge, publish, distribute, sublicense, and/or sell copies
+ * of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Author: Andrea Canciani <ranma42 at gmail.com>
+ */
+
+#include "cairo-test.h"
+
+static const char *png_filename = "romedalen.png";
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+ cairo_format_t format = CAIRO_FORMAT_ARGB32;
+ cairo_t *cr_inv;
+ cairo_surface_t *png, *inv;
+ uint8_t *data;
+ int stride;
+
+ png = cairo_test_create_surface_from_png (ctx, png_filename);
+
+ stride = cairo_format_stride_for_width (format, width);
+ data = calloc (stride, height);
+ inv = cairo_image_surface_create_for_data (data + stride * (height - 1),
+ format, width, height, -stride);
+
+ cr_inv = cairo_create (inv);
+ cairo_set_source_surface (cr_inv, png, 0, 0);
+ cairo_paint (cr_inv);
+ cairo_destroy (cr_inv);
+
+ cairo_set_source_surface (cr, inv, 0, 0);
+ cairo_paint (cr);
+
+ cairo_surface_destroy (png);
+
+ cairo_surface_finish (inv);
+ cairo_surface_destroy (inv);
+
+ free (data);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (negative_stride_image,
+ "Test that images with a negative stride are handled correctly.",
+ "stride, image", /* keywords */
+ NULL, /* requirements */
+ 256, 192,
+ NULL, draw)
diff --git a/test/reference/negative-stride-image.image16.ref.png b/test/reference/negative-stride-image.image16.ref.png
new file mode 100644
index 0000000..4b15914
Binary files /dev/null and b/test/reference/negative-stride-image.image16.ref.png differ
diff --git a/test/reference/negative-stride-image.ps.ref.png b/test/reference/negative-stride-image.ps.ref.png
new file mode 100644
index 0000000..953c9a1
Binary files /dev/null and b/test/reference/negative-stride-image.ps.ref.png differ
diff --git a/test/reference/negative-stride-image.ref.png b/test/reference/negative-stride-image.ref.png
new file mode 100644
index 0000000..4428456
Binary files /dev/null and b/test/reference/negative-stride-image.ref.png differ
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