520274219a
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13562 a1c6a512-1295-4272-9138-f99709370657
140 lines
3.2 KiB
C
140 lines
3.2 KiB
C
/*
|
|
|
|
libdemac - A Monkey's Audio decoder
|
|
|
|
$Id:$
|
|
|
|
Copyright (C) Dave Chapman 2007
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110, USA
|
|
|
|
*/
|
|
|
|
static inline void vector_add(int16_t* v1, int16_t* v2)
|
|
{
|
|
#if ORDER > 32
|
|
int order = (ORDER >> 5);
|
|
while (order--)
|
|
#endif
|
|
{
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
#if ORDER > 16
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
*v1++ += *v2++;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static inline void vector_sub(int16_t* v1, int16_t* v2)
|
|
{
|
|
#if ORDER > 32
|
|
int order = (ORDER >> 5);
|
|
while (order--)
|
|
#endif
|
|
{
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
#if ORDER > 16
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
*v1++ -= *v2++;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
static inline int32_t scalarproduct(int16_t* v1, int16_t* v2)
|
|
{
|
|
int res = 0;
|
|
|
|
#if ORDER > 16
|
|
int order = (ORDER >> 4);
|
|
while (order--)
|
|
#endif
|
|
{
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
res += *v1++ * *v2++;
|
|
}
|
|
return res;
|
|
}
|