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-rw-r--r--media/libopus/celt/x86/celt_lpc_sse4_1.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/media/libopus/celt/x86/celt_lpc_sse4_1.c b/media/libopus/celt/x86/celt_lpc_sse4_1.c
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+++ b/media/libopus/celt/x86/celt_lpc_sse4_1.c
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+/* 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"
+
+#if defined(FIXED_POINT)
+
+void celt_fir_sse4_1(const opus_val16 *x,
+ const opus_val16 *num,
+ opus_val16 *y,
+ int N,
+ int ord,
+ int arch)
+{
+ int i,j;
+ VARDECL(opus_val16, rnum);
+
+ __m128i vecNoA;
+ opus_int32 noA ;
+ SAVE_STACK;
+
+ ALLOC(rnum, ord, opus_val16);
+ for(i=0;i<ord;i++)
+ rnum[i] = num[ord-i-1];
+ 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-ord, 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-ord]);
+ y[i] = SATURATE16(ADD32(EXTEND32(x[i]), PSHR32(sum, SIG_SHIFT)));
+ }
+
+ RESTORE_STACK;
+}
+
+#endif