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-rw-r--r--media/libopus/celt/x86/celt_lpc_sse.c132
1 files changed, 132 insertions, 0 deletions
diff --git a/media/libopus/celt/x86/celt_lpc_sse.c b/media/libopus/celt/x86/celt_lpc_sse.c
new file mode 100644
index 000000000..67e5592ac
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+++ b/media/libopus/celt/x86/celt_lpc_sse.c
@@ -0,0 +1,132 @@
+/* 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,
+ 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;
+}
+
+#endif