forked from bartvdbraak/blender
db1664ed4c
* Compute MD5 hash to deal with nvidia opencl compiler cache not recognizing changes in #included files, makes it possible to do kernel compile only once and remember it for the next time blender is started. * Kernel tweak to compile with ATI/linux. Enabling any more functionality than simple clay render still chokes the compiler though, without a specific error message ..
60 lines
1.7 KiB
C++
60 lines
1.7 KiB
C++
/*
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* Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* L. Peter Deutsch
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* ghost@aladdin.com
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*/
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/* MD5
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*
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* Simply MD5 hash computation, used by disk cache. Adapted from external
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* code, with minor code modifications done to remove some unused code and
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* change code style. */
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#ifndef __UTIL_MD5_H__
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#define __UTIL_MD5_H__
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#include "util_string.h"
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#include "util_types.h"
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CCL_NAMESPACE_BEGIN
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class MD5Hash {
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public:
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MD5Hash();
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~MD5Hash();
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void append(const uint8_t *data, int size);
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bool append_file(const string& filepath);
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string get_hex();
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protected:
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void process(const uint8_t *data);
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void finish(uint8_t digest[16]);
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uint32_t count[2]; /* message length in bits, lsw first */
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uint32_t abcd[4]; /* digest buffer */
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uint8_t buf[64]; /* accumulate block */
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};
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CCL_NAMESPACE_END
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#endif /* __UTIL_MD5_H__ */
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