54 lines
2.3 KiB
C
54 lines
2.3 KiB
C
/**
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Copyright (C) powturbo 2013-2017
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GPL v2 License
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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- homepage : https://sites.google.com/site/powturbo/
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- github : https://github.com/powturbo
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- twitter : https://twitter.com/powturbo
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- email : powturbo [_AT_] gmail [_DOT_] com
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**/
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// transpose.h - byte transpose
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Transpose/Shuffle block for further compressing with lz77 or other compressors
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void transpose2 (unsigned char *in, unsigned n, unsigned char *out);
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void transpose3 (unsigned char *in, unsigned n, unsigned char *out);
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void transpose4 (unsigned char *in, unsigned n, unsigned char *out);
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void transpose8 (unsigned char *in, unsigned n, unsigned char *out);
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void transpose16 (unsigned char *in, unsigned n, unsigned char *out);
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void transpose (unsigned char *in, unsigned n, unsigned char *out, unsigned esize);
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void untranspose2 (unsigned char *in, unsigned n, unsigned char *out);
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void untranspose3 (unsigned char *in, unsigned n, unsigned char *out);
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void untranspose4 (unsigned char *in, unsigned n, unsigned char *out);
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void untranspose8 (unsigned char *in, unsigned n, unsigned char *out);
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void untranspose16 (unsigned char *in, unsigned n, unsigned char *out);
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void untranspose (unsigned char *in, unsigned n, unsigned char *out, unsigned esize);
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// scalar transpose
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void _transpose4 (unsigned char *in, unsigned n, unsigned char *out);
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void _untranspose4 (unsigned char *in, unsigned n, unsigned char *out);
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// Nibble transpose
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void transposen4 (unsigned char *in, unsigned n, unsigned char *out);
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void untransposen4 (unsigned char *in, unsigned n, unsigned char *out);
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#ifdef __cplusplus
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}
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#endif
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