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Diffstat (limited to 'libs/cairo-1.16.0/test/create-from-png-stream.c')
-rw-r--r--libs/cairo-1.16.0/test/create-from-png-stream.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/libs/cairo-1.16.0/test/create-from-png-stream.c b/libs/cairo-1.16.0/test/create-from-png-stream.c
new file mode 100644
index 0000000..2e9eeee
--- /dev/null
+++ b/libs/cairo-1.16.0/test/create-from-png-stream.c
@@ -0,0 +1,119 @@
+/*
+ * 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 Worth <cworth@cworth.org>
+ */
+
+#include "cairo-test.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+
+#define WIDTH 2
+#define HEIGHT 2
+
+static cairo_status_t
+read_png_from_file (void *closure, unsigned char *data, unsigned int length)
+{
+ FILE *file = closure;
+ size_t bytes_read;
+
+ bytes_read = fread (data, 1, length, file);
+ if (bytes_read != length)
+ return CAIRO_STATUS_READ_ERROR;
+
+ return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+ const cairo_test_context_t *ctx = cairo_test_get_context (cr);
+ char *filename;
+ FILE *file;
+ cairo_surface_t *surface;
+ cairo_status_t status;
+
+ xasprintf (&filename, "%s/reference/%s", ctx->srcdir,
+ "create-from-png-stream.ref.png");
+
+ file = fopen (filename, "rb");
+ if (file == NULL) {
+ cairo_test_status_t ret;
+
+ ret = CAIRO_TEST_FAILURE;
+ if (errno == ENOMEM)
+ ret = cairo_test_status_from_status (ctx, CAIRO_STATUS_NO_MEMORY);
+
+ if (ret != CAIRO_TEST_NO_MEMORY)
+ cairo_test_log (ctx, "Error: failed to open file: %s\n", filename);
+
+ free (filename);
+ return ret;
+ }
+
+ surface = cairo_image_surface_create_from_png_stream (read_png_from_file,
+ file);
+
+ fclose (file);
+
+ status = cairo_surface_status (surface);
+ if (status) {
+ cairo_test_status_t ret;
+
+ cairo_surface_destroy (surface);
+
+ ret = cairo_test_status_from_status (ctx, status);
+ if (ret != CAIRO_TEST_NO_MEMORY) {
+ cairo_test_log (ctx,
+ "Error: failed to create surface from PNG: %s - %s\n",
+ filename,
+ cairo_status_to_string (status));
+ }
+
+ free (filename);
+
+ return ret;
+ }
+
+ free (filename);
+
+ /* Pretend we modify the surface data (which detaches the PNG mime data) */
+ cairo_surface_flush (surface);
+ cairo_surface_mark_dirty (surface);
+
+ cairo_set_source_surface (cr, surface, 0, 0);
+ cairo_pattern_set_filter (cairo_get_source (cr), CAIRO_FILTER_NEAREST);
+ cairo_paint (cr);
+
+ cairo_surface_destroy (surface);
+
+ return CAIRO_TEST_SUCCESS;
+}
+
+CAIRO_TEST (create_from_png_stream,
+ "Tests the creation of an image surface from a PNG using a FILE *",
+ "png", /* keywords */
+ NULL, /* requirements */
+ WIDTH, HEIGHT,
+ NULL, draw)