Merge branch 'master' into soc-2020-io-performancesoc-2020-io-performance

1 files changed, 61 insertions, 0 deletions

diff --git a/intern/cycles/util/md5.h b/intern/cycles/util/md5.h
new file mode 100644
index 00000000000..cc7cbef6a49
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+++ b/intern/cycles/util/md5.h
@@ -0,0 +1,61 @@
+/*
+ * Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ *
+ * L. Peter Deutsch
+ * ghost@aladdin.com
+ */
+
+/* MD5
+ *
+ * Simply MD5 hash computation, used by disk cache. Adapted from external
+ * code, with minor code modifications done to remove some unused code and
+ * change code style. */
+
+#ifndef __UTIL_MD5_H__
+#define __UTIL_MD5_H__
+
+#include "util/string.h"
+#include "util/types.h"
+
+CCL_NAMESPACE_BEGIN
+
+class MD5Hash {
+ public:
+  MD5Hash();
+  ~MD5Hash();
+
+  void append(const uint8_t *data, int size);
+  void append(const string &str);
+  bool append_file(const string &filepath);
+  string get_hex();
+
+ protected:
+  void process(const uint8_t *data);
+  void finish(uint8_t digest[16]);
+
+  uint32_t count[2]; /* message length in bits, LSW first. */
+  uint32_t abcd[4];  /* digest buffer */
+  uint8_t buf[64];   /* accumulate block */
+};
+
+string util_md5_string(const string &str);
+
+CCL_NAMESPACE_END
+
+#endif /* __UTIL_MD5_H__ */