137 lines
4.9 KiB
C
137 lines
4.9 KiB
C
/* Copyright (C) 2004 Jean-Marc Valin */
|
|
/**
|
|
@file cb_search_arm4.h
|
|
@brief Fixed codebook functions (ARM4 version)
|
|
*/
|
|
/*
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
- Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
|
|
- Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
|
|
- Neither the name of the Xiph.org Foundation nor the names of its
|
|
contributors may be used to endorse or promote products derived from
|
|
this software without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
|
|
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
|
|
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/* This optimization is temporaly disabled until it is fixed to account for the fact
|
|
that "r" is now a 16-bit array */
|
|
#if 0
|
|
#define OVERRIDE_COMPUTE_WEIGHTED_CODEBOOK
|
|
static void compute_weighted_codebook(const signed char *shape_cb, const spx_word16_t *r, spx_word16_t *resp, spx_word16_t *resp2, spx_word32_t *E, int shape_cb_size, int subvect_size, char *stack)
|
|
{
|
|
int i, j, k;
|
|
//const signed char *shape;
|
|
for (i=0;i<shape_cb_size;i+=4)
|
|
{
|
|
|
|
//shape = shape_cb;
|
|
E[0]=0;
|
|
E[1]=0;
|
|
E[2]=0;
|
|
E[3]=0;
|
|
|
|
/* Compute codeword response using convolution with impulse response */
|
|
for(j=0;j<subvect_size;j++)
|
|
{
|
|
#if 1
|
|
spx_word16_t *res;
|
|
res = resp+j;
|
|
spx_word32_t resj0,resj1,resj2,resj3;
|
|
spx_word32_t dead1, dead2, dead3, dead4, dead5, dead6, dead7, dead8;
|
|
__asm__ __volatile__ (
|
|
"mov %0, #0 \n\t"
|
|
"mov %1, #0 \n\t"
|
|
"mov %2, #0 \n\t"
|
|
"mov %3, #0 \n\t"
|
|
".weighted%=: \n\t"
|
|
"ldrsb %8, [%6] \n\t"
|
|
"ldr %10, [%5], #-4 \n\t"
|
|
"mov %9, %6 \n\t"
|
|
"ldrsb %11, [%9, %7]! \n\t"
|
|
"mla %0, %10, %8, %0 \n\t"
|
|
"ldrsb %8, [%9, %7]! \n\t"
|
|
"mla %1, %10, %11, %1 \n\t"
|
|
"ldrsb %11, [%9, %7]! \n\t"
|
|
"mla %2, %10, %8, %2 \n\t"
|
|
"subs %4, %4, #1 \n\t"
|
|
"mla %3, %10, %11, %3 \n\t"
|
|
"add %6, %6, #1 \n\t"
|
|
"bne .weighted%= \n\t"
|
|
: "=r" (resj0), "=r" (resj1), "=r" (resj2), "=r" (resj3),
|
|
"=r" (dead1), "=r" (dead2), "=r" (dead3), "=r" (dead4),
|
|
"=r" (dead5), "=r" (dead6), "=r" (dead7), "=r" (dead8)
|
|
: "4" (j+1), "5" (r+j), "6" (shape_cb), "7" (subvect_size)
|
|
: "cc", "memory");
|
|
#else
|
|
spx_word16_t *res;
|
|
res = resp+j;
|
|
spx_word32_t resj0=0;
|
|
spx_word32_t resj1=0;
|
|
spx_word32_t resj2=0;
|
|
spx_word32_t resj3=0;
|
|
for (k=0;k<=j;k++)
|
|
{
|
|
const signed char *shape=shape_cb+k;
|
|
resj0 = MAC16_16(resj0,*shape,r[j-k]);
|
|
shape += subvect_size;
|
|
resj1 = MAC16_16(resj1,*shape,r[j-k]);
|
|
shape += subvect_size;
|
|
resj2 = MAC16_16(resj2,*shape,r[j-k]);
|
|
shape += subvect_size;
|
|
resj3 = MAC16_16(resj3,*shape,r[j-k]);
|
|
shape += subvect_size;
|
|
}
|
|
#endif
|
|
|
|
#ifdef FIXED_POINT
|
|
resj0 = SHR(resj0, 11);
|
|
resj1 = SHR(resj1, 11);
|
|
resj2 = SHR(resj2, 11);
|
|
resj3 = SHR(resj3, 11);
|
|
#else
|
|
resj0 *= 0.03125;
|
|
resj1 *= 0.03125;
|
|
resj2 *= 0.03125;
|
|
resj3 *= 0.03125;
|
|
#endif
|
|
|
|
/* Compute codeword energy */
|
|
E[0]=ADD32(E[0],MULT16_16(resj0,resj0));
|
|
E[1]=ADD32(E[1],MULT16_16(resj1,resj1));
|
|
E[2]=ADD32(E[2],MULT16_16(resj2,resj2));
|
|
E[3]=ADD32(E[3],MULT16_16(resj3,resj3));
|
|
*res = resj0;
|
|
res += subvect_size;
|
|
*res = resj1;
|
|
res += subvect_size;
|
|
*res = resj2;
|
|
res += subvect_size;
|
|
*res = resj3;
|
|
res += subvect_size;
|
|
}
|
|
resp += subvect_size<<2;
|
|
shape_cb += subvect_size<<2;
|
|
E+=4;
|
|
}
|
|
|
|
}
|
|
#endif
|