add example_util.[hc]
moves ReadFile to a common location
Change-Id: Ia81230671f16d7d4d218b9954a5be55577a85413
diff --git a/examples/example_util.h b/examples/example_util.h
new file mode 100644
index 0000000..54d1ebe
--- /dev/null
+++ b/examples/example_util.h
@@ -0,0 +1,30 @@
+// Copyright 2012 Google Inc. All Rights Reserved.
+//
+// This code is licensed under the same terms as WebM:
+// Software License Agreement: http://www.webmproject.org/license/software/
+// Additional IP Rights Grant: http://www.webmproject.org/license/additional/
+// -----------------------------------------------------------------------------
+//
+// Utility functions used by the example programs.
+//
+
+#ifndef WEBP_EXAMPLES_EXAMPLE_UTIL_H_
+#define WEBP_EXAMPLES_EXAMPLE_UTIL_H_
+
+#include "webp/types.h"
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+// Allocates storage for entire file 'file_name' and returns contents and size
+// in 'data' and 'data_size'. Returns 1 on success, 0 otherwise. '*data' should
+// be deleted using free().
+int ExUtilReadFile(const char* const file_name,
+ const uint8_t** data, size_t* data_size);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+} // extern "C"
+#endif
+
+#endif // WEBP_EXAMPLES_EXAMPLE_UTIL_H_