diff options
Diffstat (limited to 'deps/flac-1.3.2/src/libFLAC/stream_encoder_intrin_ssse3.c')
| -rw-r--r-- | deps/flac-1.3.2/src/libFLAC/stream_encoder_intrin_ssse3.c | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/deps/flac-1.3.2/src/libFLAC/stream_encoder_intrin_ssse3.c b/deps/flac-1.3.2/src/libFLAC/stream_encoder_intrin_ssse3.c new file mode 100644 index 0000000..21a08fc --- /dev/null +++ b/deps/flac-1.3.2/src/libFLAC/stream_encoder_intrin_ssse3.c @@ -0,0 +1,148 @@ +/* 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[], + unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps) +{ + const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order; + unsigned partitions = 1u << max_partition_order; + + FLAC__ASSERT(default_partition_samples > predictor_order); + + /* first do max_partition_order */ + { + const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples); + unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order); + + if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) { + for(partition = residual_sample = 0; partition < partitions; partition++) { + __m128i mm_sum = _mm_setzero_si128(); + unsigned 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(); + unsigned 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 */ + { + unsigned 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--) { + unsigned 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 */ |