ref: af68b857a3a083494bac2c2e5725bc192588afe2
dir: /celt/x86/celt_lpc_sse.c/
/* Copyright (c) 2014, Cisco Systems, INC Written by XiangMingZhu WeiZhou MinPeng YanWang 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. 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 COPYRIGHT OWNER 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. */ #ifdef HAVE_CONFIG_H #include "config.h" #endif #include <xmmintrin.h> #include <emmintrin.h> #include <smmintrin.h> #include "celt_lpc.h" #include "stack_alloc.h" #include "mathops.h" #include "pitch.h" #include "x86cpu.h" void celt_fir_sse4_1(const opus_val16 *_x, const opus_val16 *num, opus_val16 *_y, int N, int ord, opus_val16 *mem, int arch) { int i,j; VARDECL(opus_val16, rnum); VARDECL(opus_val16, x); __m128i vecNoA; opus_int32 noA ; SAVE_STACK; ALLOC(rnum, ord, opus_val16); ALLOC(x, N+ord, opus_val16); for(i=0;i<ord;i++) rnum[i] = num[ord-i-1]; for(i=0;i<ord;i++) x[i] = mem[ord-i-1]; for (i=0;i<N-7;i+=8) { x[i+ord ]=_x[i ]; x[i+ord+1]=_x[i+1]; x[i+ord+2]=_x[i+2]; x[i+ord+3]=_x[i+3]; x[i+ord+4]=_x[i+4]; x[i+ord+5]=_x[i+5]; x[i+ord+6]=_x[i+6]; x[i+ord+7]=_x[i+7]; } for (;i<N-3;i+=4) { x[i+ord ]=_x[i ]; x[i+ord+1]=_x[i+1]; x[i+ord+2]=_x[i+2]; x[i+ord+3]=_x[i+3]; } for (;i<N;i++) x[i+ord]=_x[i]; for(i=0;i<ord;i++) mem[i] = _x[N-i-1]; #ifdef SMALL_FOOTPRINT for (i=0;i<N;i++) { opus_val32 sum = SHL32(EXTEND32(_x[i]), SIG_SHIFT); for (j=0;j<ord;j++) { sum = MAC16_16(sum,rnum[j],x[i+j]); } _y[i] = SATURATE16(PSHR32(sum, SIG_SHIFT)); } #else noA = EXTEND32(1) << SIG_SHIFT >> 1; vecNoA = _mm_set_epi32(noA, noA, noA, noA); for (i=0;i<N-3;i+=4) { opus_val32 sums[4] = {0}; __m128i vecSum, vecX; xcorr_kernel(rnum, x+i, sums, ord, arch); vecSum = _mm_loadu_si128((__m128i *)sums); vecSum = _mm_add_epi32(vecSum, vecNoA); vecSum = _mm_srai_epi32(vecSum, SIG_SHIFT); vecX = OP_CVTEPI16_EPI32_M64(_x + i); vecSum = _mm_add_epi32(vecSum, vecX); vecSum = _mm_packs_epi32(vecSum, vecSum); _mm_storel_epi64((__m128i *)(_y + i), vecSum); } for (;i<N;i++) { opus_val32 sum = 0; for (j=0;j<ord;j++) sum = MAC16_16(sum, rnum[j], x[i + j]); _y[i] = SATURATE16(ADD32(EXTEND32(_x[i]), PSHR32(sum, SIG_SHIFT))); } #endif RESTORE_STACK; }