ltp_arm4.h
资源名称:tcpmp.rar [点击查看]
上传用户:wstnjxml
上传日期:2014-04-03
资源大小:7248k
文件大小:7k
源码类别:
Windows CE
开发平台:
C/C++
- /* Copyright (C) 2004 Jean-Marc Valin
- File: ltp.c
- Lont-Term Prediction functions (SSE 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.
- */
- #define OVERRIDE_INNER_PROD
- static spx_word32_t inner_prod(const spx_word16_t *x, const spx_word16_t *y, int len)
- {
- spx_word32_t sum1=0,sum2=0;
- spx_word16_t *deadx, *deady;
- int deadlen, dead1, dead2, dead3, dead4, dead5, dead6;
- __asm__ __volatile__ (
- "tldrsh %5, [%0], #2 n"
- "tldrsh %6, [%1], #2 n"
- ".inner_prod_loop%=:n"
- "tsub %7, %7, %7n"
- "tsub %10, %10, %10n"
- "tldrsh %8, [%0], #2 n"
- "tldrsh %9, [%1], #2 n"
- "tmla %7, %5, %6, %7n"
- "tldrsh %5, [%0], #2 n"
- "tldrsh %6, [%1], #2 n"
- "tmla %10, %8, %9, %10n"
- "tldrsh %8, [%0], #2 n"
- "tldrsh %9, [%1], #2 n"
- "tmla %7, %5, %6, %7n"
- "tldrsh %5, [%0], #2 n"
- "tldrsh %6, [%1], #2 n"
- "tmla %10, %8, %9, %10n"
- "tldrsh %8, [%0], #2 n"
- "tldrsh %9, [%1], #2 n"
- "tmla %7, %5, %6, %7n"
- "tldrsh %5, [%0], #2 n"
- "tldrsh %6, [%1], #2 n"
- "tmla %10, %8, %9, %10n"
- "tldrsh %8, [%0], #2 n"
- "tldrsh %9, [%1], #2 n"
- "tmla %7, %5, %6, %7n"
- "tldrsh %5, [%0], #2 n"
- "tldrsh %6, [%1], #2 n"
- "tmla %10, %8, %9, %10n"
- "tsubs %4, %4, #1n"
- "tadd %2, %2, %7, asr #5n"
- "tadd %3, %3, %10, asr #5n"
- "tbne .inner_prod_loop%=n"
- : "=r" (deadx), "=r" (deady), "=r" (sum1), "=r" (sum2), "=r" (deadlen),
- "=r" (dead1), "=r" (dead2), "=r" (dead3), "=r" (dead4), "=r" (dead5), "=r" (dead6)
- : "0" (x), "1" (y), "2" (sum1), "3" (sum2), "4" (len>>3)
- : "cc"
- );
- return (sum1+sum2)>>1;
- }
- #define OVERRIDE_PITCH_XCORR
- static void pitch_xcorr(const spx_word16_t *_x, const spx_word16_t *_y, spx_word32_t *corr, int len, int nb_pitch, char *stack)
- {
- int i,j;
- for (i=0;i<nb_pitch;i+=4)
- {
- /* Compute correlation*/
- //corr[nb_pitch-1-i]=inner_prod(x, _y+i, len);
- spx_word32_t sum1=0;
- spx_word32_t sum2=0;
- spx_word32_t sum3=0;
- spx_word32_t sum4=0;
- const spx_word16_t *y = _y+i;
- const spx_word16_t *x = _x;
- spx_word32_t y0, y1, y2, y3;
- y0=*y++;
- y1=*y++;
- y2=*y++;
- y3=*y++;
- for (j=0;j<len;j+=4)
- {
- spx_word32_t part1, part2, part3, part4, x0;
- spx_word32_t dead1;
- __asm__ __volatile__ (
- #ifdef SHORTCUTS
- "tldrsh %10, [%8], #4 n"
- "tmul %4, %10, %0 n"
- "tldrsh %15, [%8], #4 n"
- "tmul %5, %10, %1 n"
- "tldrsh %0, [%9], #2 n"
- "tmul %6, %10, %2 n"
- "tldrsh %1, [%9], #2 n"
- "tmul %7, %10, %3 n"
- "tmla %4, %15, %2, %4 n"
- "tldrsh %2, [%9], #2 n"
- "tmla %5, %15, %3, %5 n"
- "tldrsh %3, [%9], #2 n"
- "tmla %6, %15, %0, %6 n"
- "tmla %7, %15, %1, %7 n"
- #else
- "tldrsh %10, [%8], #2 n"
- "tmul %4, %10, %0 n"
- "tmul %5, %10, %1 n"
- "tmul %6, %10, %2 n"
- "tmul %7, %10, %3 n"
- "tldrsh %10, [%8], #2 n"
- "tldrsh %0, [%9], #2 n"
- "tmla %4, %10, %1, %4 n"
- "tmla %5, %10, %2, %5 n"
- "tmla %6, %10, %3, %6 n"
- "tmla %7, %10, %0, %7 n"
- "tldrsh %10, [%8], #2 n"
- "tldrsh %1, [%9], #2 n"
- "tmla %4, %10, %2, %4 n"
- "tmla %5, %10, %3, %5 n"
- "tmla %6, %10, %0, %6 n"
- "tmla %7, %10, %1, %7 n"
- "tldrsh %10, [%8], #2 n"
- "tldrsh %2, [%9], #2 n"
- "tmla %4, %10, %3, %4 n"
- "tmla %5, %10, %0, %5 n"
- "tmla %6, %10, %1, %6 n"
- "tmla %7, %10, %2, %7 n"
- "tldrsh %3, [%9], #2 n"
- #endif
- "tldr %10, %11 n"
- "tldr %15, %12 n"
- "tadd %4, %10, %4, asr #6 n"
- "tstr %4, %11 n"
- "tldr %10, %13 n"
- "tadd %5, %15, %5, asr #6 n"
- "tstr %5, %12 n"
- "tldr %15, %14 n"
- "tadd %6, %10, %6, asr #6 n"
- "tadd %7, %15, %7, asr #6 n"
- "tstr %6, %13 n"
- "tstr %7, %14 n"
- : "=r" (y0), "=r" (y1), "=r" (y2), "=r" (y3),
- "=r" (part1), "=r" (part2), "=r" (part3), "=r" (part4),
- "=r" (x), "=r" (y), "=r" (x0),
- "=m" (sum1), "=m" (sum2), "=m" (sum3), "=m" (sum4), "=r" (dead1)
- : "0" (y0), "1" (y1), "2" (y2), "3" (y3),
- "8" (x), "9" (y),
- "11" (sum1), "12" (sum2), "13" (sum3), "14" (sum4)
- : "cc", "memory"
- );
- }
- corr[nb_pitch-1-i]=sum1;
- corr[nb_pitch-2-i]=sum2;
- corr[nb_pitch-3-i]=sum3;
- corr[nb_pitch-4-i]=sum4;
- }
- }