1 files changed, 39 insertions, 4 deletions
diff --git a/pixman/test/utils.h b/pixman/test/utils.h
index bc110d847..8fdb2ce4f 100644
--- a/pixman/test/utils.h
+++ b/pixman/test/utils.h
@@ -1,6 +1,41 @@
-#include <stdio.h>
 #include <stdlib.h>
-#include <glib.h>
-#include "pixman.h"
+#include <config.h>
+#include "pixman-private.h" /* For 'inline' definition */
 
-void show_image (pixman_image_t *image);
+/* A primitive pseudorandom number generator,
+ * taken from POSIX.1-2001 example
+ */
+
+extern uint32_t lcg_seed;
+
+static inline uint32_t
+lcg_rand (void)
+{
+    lcg_seed = lcg_seed * 1103515245 + 12345;
+    return ((uint32_t)(lcg_seed / 65536) % 32768);
+}
+
+static inline void
+lcg_srand (uint32_t seed)
+{
+    lcg_seed = seed;
+}
+
+static inline uint32_t
+lcg_rand_n (int max)
+{
+    return lcg_rand () % max;
+}
+
+
+/* CRC 32 computation
+ */
+uint32_t
+compute_crc32 (uint32_t    in_crc32,
+	       const void *buf,
+	       size_t      buf_len);
+
+/* perform endian conversion of pixel data
+ */
+void
+image_endian_swap (pixman_image_t *img, int bpp);