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Improve x86 instrinsic implementation.
* Splits lpc_x86intrin.c to lpc_intrin_sse.c and lpc_intrin_sse2.c * Add FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2() function to lpc_intrin_sse2.c * Add lpc_intrin_sse41.c with two ..._wide_intrin_sse41() functions (useful for 24-bit en-/decoding) * Add precompute_partition_info_sums_intrin_sse2() / ...ssse3() and disables precompute_partition_info_sums_32bit_asm_ia32_(). SSE2 version uses 4 SSE2 instructions instead of 1 SSSE3 instruction PABSD so it is slightly slower. Patch-from: lvqcl <lvqcl.mail@gmail.com>
This commit is contained in:
Erik de Castro Lopo
161
src/libFLAC/stream_encoder_intrin_ssse3.c
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src/libFLAC/stream_encoder_intrin_ssse3.c
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/* libFLAC - Free Lossless Audio Codec library
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* Copyright (C) 2000-2009 Josh Coalson
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* Copyright (C) 2011-2013 Xiph.Org Foundation
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* - Neither the name of the Xiph.org Foundation nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "share/compat.h"
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#ifndef FLAC__NO_ASM
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#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
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#ifdef FLAC__SSSE3_SUPPORTED
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#include <stdlib.h> /* for abs() */
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#include <tmmintrin.h> /* SSSE3 */
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#include "FLAC/assert.h"
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#include "private/stream_encoder.h"
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void precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
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unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps)
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{
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const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
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unsigned partitions = 1u << max_partition_order;
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FLAC__ASSERT(default_partition_samples > predictor_order);
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/* first do max_partition_order */
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{
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unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
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unsigned e1, e3;
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__m128i mm_res, mm_sum;
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if(bps <= 16) {
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FLAC__uint32 abs_residual_partition_sum;
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for(partition = residual_sample = 0; partition < partitions; partition++) {
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end += default_partition_samples;
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abs_residual_partition_sum = 0;
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mm_sum = _mm_setzero_si128();
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e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
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if(e1 > end)
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e1 = end; /* try flac -l 1 -b 16 and you'll be here */
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/* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast*/
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for( ; residual_sample < e1; residual_sample++)
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abs_residual_partition_sum += abs(residual[residual_sample]); /* abs(INT_MIN) is undefined, but if the residual is INT_MIN we have bigger problems */
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for( ; residual_sample < e3; residual_sample+=4) {
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mm_res = _mm_loadu_si128((const __m128i*)(residual+residual_sample));
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mm_res = _mm_abs_epi32(mm_res);
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mm_sum = _mm_add_epi32(mm_sum, mm_res);
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}
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mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
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mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
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abs_residual_partition_sum += _mm_cvtsi128_si32(mm_sum);
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for( ; residual_sample < end; residual_sample++)
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abs_residual_partition_sum += abs(residual[residual_sample]);
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abs_residual_partition_sums[partition] = abs_residual_partition_sum;
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}
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}
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else { /* have to pessimistically use 64 bits for accumulator */
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FLAC__uint64 abs_residual_partition_sum;
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for(partition = residual_sample = 0; partition < partitions; partition++) {
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end += default_partition_samples;
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abs_residual_partition_sum = 0;
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mm_sum = _mm_setzero_si128();
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e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
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FLAC__ASSERT(e1 <= end);
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for( ; residual_sample < e1; residual_sample++)
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abs_residual_partition_sum += abs(residual[residual_sample]);
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for( ; residual_sample < e3; residual_sample+=2) {
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mm_res = _mm_loadl_epi64((const __m128i*)(residual+residual_sample)); /* 0 0 r1 r0 */
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mm_res = _mm_abs_epi32(mm_res); /* 0 0 |r1| |r0| */
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mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0 |r1| 0 |r0| == |r1_64| |r0_64| */
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mm_sum = _mm_add_epi64(mm_sum, mm_res);
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}
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mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
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#ifdef FLAC__CPU_IA32
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#ifdef _MSC_VER
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abs_residual_partition_sum += mm_sum.m128i_u64[0];
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#else
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{
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FLAC__uint64 tmp[2];
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_mm_storel_epi64((__m128i *)tmp, mm_sum);
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abs_residual_partition_sum += tmp[0];
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}
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#endif
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#else
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abs_residual_partition_sum += _mm_cvtsi128_si64(mm_sum);
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#endif
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for( ; residual_sample < end; residual_sample++)
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abs_residual_partition_sum += abs(residual[residual_sample]);
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abs_residual_partition_sums[partition] = abs_residual_partition_sum;
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}
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}
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}
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/* now merge partitions for lower orders */
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{
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unsigned from_partition = 0, to_partition = partitions;
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int partition_order;
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for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
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unsigned i;
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partitions >>= 1;
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for(i = 0; i < partitions; i++) {
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abs_residual_partition_sums[to_partition++] =
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abs_residual_partition_sums[from_partition ] +
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abs_residual_partition_sums[from_partition+1];
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from_partition += 2;
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}
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}
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}
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}
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#endif /* FLAC__SSSE3_SUPPORTED */
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#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
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#endif /* FLAC__NO_ASM */
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