149 lines
6.0 KiB
C
149 lines
6.0 KiB
C
|
/* libFLAC - Free Lossless Audio Codec library
|
||
|
|
* Copyright (C) 2000-2009 Josh Coalson
|
||
|
|
* Copyright (C) 2011-2016 Xiph.Org Foundation
|
||
|
|
*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* - Neither the name of the Xiph.org Foundation nor the names of its
|
||
|
|
* contributors may be used to endorse or promote products derived from
|
||
|
|
* this software without specific prior written permission.
|
||
|
|
*
|
||
|
|
* 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 FOUNDATION 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 "private/cpu.h"
|
||
|
|
|
||
|
|
#ifndef FLAC__NO_ASM
|
||
|
|
#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
|
||
|
|
#include "private/stream_encoder.h"
|
||
|
|
#include "private/bitmath.h"
|
||
|
|
#ifdef FLAC__SSSE3_SUPPORTED
|
||
|
|
|
||
|
|
#include <stdlib.h> /* for abs() */
|
||
|
|
#include <tmmintrin.h> /* SSSE3 */
|
||
|
|
#include "FLAC/assert.h"
|
||
|
|
|
||
|
|
FLAC__SSE_TARGET("ssse3")
|
||
|
|
void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
|
||
|
|
uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps)
|
||
|
|
{
|
||
|
|
const uint32_t default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
|
||
|
|
uint32_t partitions = 1u << max_partition_order;
|
||
|
|
|
||
|
|
FLAC__ASSERT(default_partition_samples > predictor_order);
|
||
|
|
|
||
|
|
/* first do max_partition_order */
|
||
|
|
{
|
||
|
|
const uint32_t threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
|
||
|
|
uint32_t partition, residual_sample, end = (uint32_t)(-(int32_t)predictor_order);
|
||
|
|
|
||
|
|
if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
|
||
|
|
for(partition = residual_sample = 0; partition < partitions; partition++) {
|
||
|
|
__m128i mm_sum = _mm_setzero_si128();
|
||
|
|
uint32_t e1, e3;
|
||
|
|
end += default_partition_samples;
|
||
|
|
|
||
|
|
e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
|
||
|
|
if(e1 > end)
|
||
|
|
e1 = end; /* try flac -l 1 -b 16 and you'll be here */
|
||
|
|
|
||
|
|
/* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast */
|
||
|
|
for( ; residual_sample < e1; residual_sample++) {
|
||
|
|
__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
|
||
|
|
mm_sum = _mm_add_epi32(mm_sum, mm_res);
|
||
|
|
}
|
||
|
|
|
||
|
|
for( ; residual_sample < e3; residual_sample+=4) {
|
||
|
|
__m128i mm_res = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
|
||
|
|
mm_sum = _mm_add_epi32(mm_sum, mm_res);
|
||
|
|
}
|
||
|
|
|
||
|
|
for( ; residual_sample < end; residual_sample++) {
|
||
|
|
__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
|
||
|
|
mm_sum = _mm_add_epi32(mm_sum, mm_res);
|
||
|
|
}
|
||
|
|
|
||
|
|
mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
|
||
|
|
mm_sum = _mm_hadd_epi32(mm_sum, mm_sum);
|
||
|
|
abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
|
||
|
|
/* workaround for a bug in MSVC2015U2 - see https://connect.microsoft.com/VisualStudio/feedback/details/2659191/incorrect-code-generation-for-x86-64 */
|
||
|
|
#if (defined _MSC_VER) && (_MSC_FULL_VER == 190023918) && (defined FLAC__CPU_X86_64)
|
||
|
|
abs_residual_partition_sums[partition] &= 0xFFFFFFFF;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
}
|
||
|
|
else { /* have to pessimistically use 64 bits for accumulator */
|
||
|
|
for(partition = residual_sample = 0; partition < partitions; partition++) {
|
||
|
|
__m128i mm_sum = _mm_setzero_si128();
|
||
|
|
uint32_t e1, e3;
|
||
|
|
end += default_partition_samples;
|
||
|
|
|
||
|
|
e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
|
||
|
|
FLAC__ASSERT(e1 <= end);
|
||
|
|
|
||
|
|
for( ; residual_sample < e1; residual_sample++) {
|
||
|
|
__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample])); /* 0 0 0 |r0| == 00 |r0_64| */
|
||
|
|
mm_sum = _mm_add_epi64(mm_sum, mm_res);
|
||
|
|
}
|
||
|
|
|
||
|
|
for( ; residual_sample < e3; residual_sample+=2) {
|
||
|
|
__m128i mm_res = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(residual+residual_sample))); /* 0 0 |r1| |r0| */
|
||
|
|
mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0 |r1| 0 |r0| == |r1_64| |r0_64| */
|
||
|
|
mm_sum = _mm_add_epi64(mm_sum, mm_res);
|
||
|
|
}
|
||
|
|
|
||
|
|
for( ; residual_sample < end; residual_sample++) {
|
||
|
|
__m128i mm_res = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
|
||
|
|
mm_sum = _mm_add_epi64(mm_sum, mm_res);
|
||
|
|
}
|
||
|
|
|
||
|
|
mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
|
||
|
|
_mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), mm_sum);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* now merge partitions for lower orders */
|
||
|
|
{
|
||
|
|
uint32_t from_partition = 0, to_partition = partitions;
|
||
|
|
int partition_order;
|
||
|
|
for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
|
||
|
|
uint32_t i;
|
||
|
|
partitions >>= 1;
|
||
|
|
for(i = 0; i < partitions; i++) {
|
||
|
|
abs_residual_partition_sums[to_partition++] =
|
||
|
|
abs_residual_partition_sums[from_partition ] +
|
||
|
|
abs_residual_partition_sums[from_partition+1];
|
||
|
|
from_partition += 2;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* FLAC__SSSE3_SUPPORTED */
|
||
|
|
#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
|
||
|
|
#endif /* FLAC__NO_ASM */
|