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-rw-r--r--media/libopus/celt/x86/pitch_sse2.c95
1 files changed, 95 insertions, 0 deletions
diff --git a/media/libopus/celt/x86/pitch_sse2.c b/media/libopus/celt/x86/pitch_sse2.c
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+++ b/media/libopus/celt/x86/pitch_sse2.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 "macros.h"
+#include "celt_lpc.h"
+#include "stack_alloc.h"
+#include "mathops.h"
+#include "pitch.h"
+
+#if defined(OPUS_X86_MAY_HAVE_SSE2) && defined(FIXED_POINT)
+opus_val32 celt_inner_prod_sse2(const opus_val16 *x, const opus_val16 *y,
+ int N)
+{
+ opus_int i, dataSize16;
+ opus_int32 sum;
+
+ __m128i inVec1_76543210, inVec1_FEDCBA98, acc1;
+ __m128i inVec2_76543210, inVec2_FEDCBA98, acc2;
+
+ sum = 0;
+ dataSize16 = N & ~15;
+
+ acc1 = _mm_setzero_si128();
+ acc2 = _mm_setzero_si128();
+
+ for (i=0;i<dataSize16;i+=16)
+ {
+ inVec1_76543210 = _mm_loadu_si128((__m128i *)(&x[i + 0]));
+ inVec2_76543210 = _mm_loadu_si128((__m128i *)(&y[i + 0]));
+
+ inVec1_FEDCBA98 = _mm_loadu_si128((__m128i *)(&x[i + 8]));
+ inVec2_FEDCBA98 = _mm_loadu_si128((__m128i *)(&y[i + 8]));
+
+ inVec1_76543210 = _mm_madd_epi16(inVec1_76543210, inVec2_76543210);
+ inVec1_FEDCBA98 = _mm_madd_epi16(inVec1_FEDCBA98, inVec2_FEDCBA98);
+
+ acc1 = _mm_add_epi32(acc1, inVec1_76543210);
+ acc2 = _mm_add_epi32(acc2, inVec1_FEDCBA98);
+ }
+
+ acc1 = _mm_add_epi32( acc1, acc2 );
+
+ if (N - i >= 8)
+ {
+ inVec1_76543210 = _mm_loadu_si128((__m128i *)(&x[i + 0]));
+ inVec2_76543210 = _mm_loadu_si128((__m128i *)(&y[i + 0]));
+
+ inVec1_76543210 = _mm_madd_epi16(inVec1_76543210, inVec2_76543210);
+
+ acc1 = _mm_add_epi32(acc1, inVec1_76543210);
+ i += 8;
+ }
+
+ acc1 = _mm_add_epi32(acc1, _mm_unpackhi_epi64( acc1, acc1));
+ acc1 = _mm_add_epi32(acc1, _mm_shufflelo_epi16( acc1, 0x0E));
+ sum += _mm_cvtsi128_si32(acc1);
+
+ for (;i<N;i++) {
+ sum = silk_SMLABB(sum, x[i], y[i]);
+ }
+
+ return sum;
+}
+#endif