add cairo

1 files changed, 170 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/nil-surface.c b/libs/cairo-1.16.0/test/nil-surface.c
new file mode 100644
index 0000000..30a1f97
--- /dev/null
+++ b/libs/cairo-1.16.0/test/nil-surface.c
@@ -0,0 +1,170 @@
+/*
+ * Copyright © 2005 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>
+
+/* Test to verify fixes for the following similar bugs:
+ *
+ *	https://bugs.freedesktop.org/show_bug.cgi?id=4088
+ *	https://bugs.freedesktop.org/show_bug.cgi?id=3915
+ *	https://bugs.freedesktop.org/show_bug.cgi?id=9906
+ */
+
+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_surface_t *surface;
+    cairo_pattern_t *pattern;
+    cairo_t *cr2;
+
+    /*
+     * 1. Test file-not-found from surface->pattern->cairo_t
+     */
+
+    /* Make a custom context to not interfere with the one passed in. */
+    cr2 = cairo_create (cairo_get_target (cr));
+
+    /* First, let's make a nil surface. */
+    surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___");
+
+    /* Let the error propagate into a nil pattern. */
+    pattern = cairo_pattern_create_for_surface (surface);
+
+    /* Then let it propagate into the cairo_t. */
+    cairo_set_source (cr2, pattern);
+    cairo_paint (cr2);
+
+    cairo_pattern_destroy (pattern);
+    cairo_surface_destroy (surface);
+
+    /* Check that the error made it all that way. */
+    if (cairo_status (cr2) != CAIRO_STATUS_FILE_NOT_FOUND) {
+	cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
+			cairo_status_to_string (cairo_status (cr2)),
+			cairo_status_to_string (CAIRO_STATUS_FILE_NOT_FOUND));
+	cairo_destroy (cr2);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    cairo_destroy (cr2);
+
+    /*
+     * 2. Test NULL pointer pattern->cairo_t
+     */
+    cr2 = cairo_create (cairo_get_target (cr));
+
+    /* First, trigger the NULL pointer status. */
+    pattern = cairo_pattern_create_for_surface (NULL);
+
+    /* Then let it propagate into the cairo_t. */
+    cairo_set_source (cr2, pattern);
+    cairo_paint (cr2);
+
+    cairo_pattern_destroy (pattern);
+
+    /* Check that the error made it all that way. */
+    if (cairo_status (cr2) != CAIRO_STATUS_NULL_POINTER) {
+	cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
+			cairo_status_to_string (cairo_status (cr2)),
+			cairo_status_to_string (CAIRO_STATUS_NULL_POINTER));
+	cairo_destroy (cr2);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    cairo_destroy (cr2);
+
+    /*
+     * 3. Test that cairo_surface_finish can accept NULL or a nil
+     *    surface without crashing.
+     */
+
+    cairo_surface_finish (NULL);
+
+    surface = cairo_image_surface_create_from_png ("___THIS_FILE_DOES_NOT_EXIST___");
+    cairo_surface_finish (surface);
+    cairo_surface_destroy (surface);
+
+    /*
+     * 4. OK, we're straying from the original name, but it's still a
+     * similar kind of testing of error paths. Here we're making sure
+     * we can still call a cairo_get_* function after triggering an
+     * INVALID_RESTORE error.
+     */
+    cr2 = cairo_create (cairo_get_target (cr));
+
+    /* Trigger invalid restore. */
+    cairo_restore (cr2);
+    if (cairo_status (cr2) != CAIRO_STATUS_INVALID_RESTORE) {
+	cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
+			cairo_status_to_string (cairo_status (cr2)),
+			cairo_status_to_string (CAIRO_STATUS_INVALID_RESTORE));
+	cairo_destroy (cr2);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    /* Test that we can still call cairo_get_fill_rule without crashing. */
+    cairo_get_fill_rule (cr2);
+
+    cairo_destroy (cr2);
+
+    /*
+     * 5. Create a cairo_t for the NULL surface.
+     */
+    cr2 = cairo_create (NULL);
+
+    if (cairo_status (cr2) != CAIRO_STATUS_NULL_POINTER) {
+	cairo_test_log (ctx, "Error: Received status of \"%s\" rather than expected \"%s\"\n",
+			cairo_status_to_string (cairo_status (cr2)),
+			cairo_status_to_string (CAIRO_STATUS_NULL_POINTER));
+	cairo_destroy (cr2);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    /* Test that get_target returns something valid */
+    if (cairo_get_target (cr2) == NULL) {
+	cairo_test_log (ctx, "Error: cairo_get_target() returned NULL\n");
+	cairo_destroy (cr2);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    /* Test that push_group doesn't crash */
+    cairo_push_group (cr2);
+    cairo_stroke (cr2);
+    pattern = cairo_pop_group (cr2);
+    cairo_pattern_destroy (pattern);
+
+    cairo_destroy (cr2);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (nil_surface,
+	    "Test that nil surfaces do not make cairo crash.",
+	    "api", /* keywords */
+	    NULL, /* requirements */
+	    1, 1,
+	    NULL, draw)