141 lines
3.2 KiB
C
141 lines
3.2 KiB
C
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/*
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libdemac - A Monkey's Audio decoder
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$Id:$
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Copyright (C) Dave Chapman 2007
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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
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
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*/
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static inline void vector_add(int16_t* v1, int16_t* v2)
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{
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#if ORDER > 32
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int order = (ORDER >> 5);
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while (order--)
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#endif
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{
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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#if ORDER > 16
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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*v1++ += *v2++;
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#endif
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}
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}
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static inline void vector_sub(int16_t* v1, int16_t* v2)
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{
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#if ORDER > 32
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int order = (ORDER >> 5);
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while (order--)
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#endif
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{
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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#if ORDER > 16
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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*v1++ -= *v2++;
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#endif
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}
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}
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static inline int32_t scalarproduct(int16_t* v1, int16_t* v2)
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{
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int res = 0;
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#if ORDER > 16
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int order = (ORDER >> 4);
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while (order--)
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#endif
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{
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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res += *v1++ * *v2++;
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}
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return res;
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}
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