blender/intern/cycles/util/util_md5.h
Ton Roosendaal da376e0237 Cycles render engine, initial commit. This is the engine itself, blender modifications and build instructions will follow later.
Cycles uses code from some great open source projects, many thanks them:

* BVH building and traversal code from NVidia's "Understanding the Efficiency of Ray Traversal on GPUs":
http://code.google.com/p/understanding-the-efficiency-of-ray-traversal-on-gpus/
* Open Shading Language for a large part of the shading system:
http://code.google.com/p/openshadinglanguage/
* Blender for procedural textures and a few other nodes.
* Approximate Catmull Clark subdivision from NVidia Mesh tools:
http://code.google.com/p/nvidia-mesh-tools/
* Sobol direction vectors from:
http://web.maths.unsw.edu.au/~fkuo/sobol/
* Film response functions from:
http://www.cs.columbia.edu/CAVE/software/softlib/dorf.php
2011-04-27 11:58:34 +00:00

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/*
* 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);
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 */
};
CCL_NAMESPACE_END
#endif /* __UTIL_MD5_H__ */