diff options
Diffstat (limited to 'deps/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.c')
| -rw-r--r-- | deps/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.c | 255 |
1 files changed, 0 insertions, 255 deletions
diff --git a/deps/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.c b/deps/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.c deleted file mode 100644 index 6a9b4dd..0000000 --- a/deps/flac-1.3.2/src/libFLAC/fixed_intrin_sse2.c +++ /dev/null @@ -1,255 +0,0 @@ -/* 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__INTEGER_ONLY_LIBRARY -#ifndef FLAC__NO_ASM -#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN -#include "private/fixed.h" -#ifdef FLAC__SSE2_SUPPORTED - -#include <emmintrin.h> /* SSE2 */ -#include <math.h> -#include "private/macros.h" -#include "share/compat.h" -#include "FLAC/assert.h" - -#ifdef FLAC__CPU_IA32 -#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src) -#else -#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src) -#endif - -FLAC__SSE_TARGET("sse2") -unsigned FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]) -{ - FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4; - unsigned i, order; - - __m128i total_err0, total_err1, total_err2; - - { - FLAC__int32 itmp; - __m128i last_error; - - last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0 - itmp = data[-2]; - last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0)); - last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1 - itmp -= data[-3]; - last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0)); - last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2 - itmp -= data[-3] - data[-4]; - last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0)); - last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3 - - total_err0 = total_err1 = _mm_setzero_si128(); - for(i = 0; i < data_len; i++) { - __m128i err0, err1, tmp; - err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0 - err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0 -#if 1 /* OPT_SSE */ - err1 = _mm_sub_epi32(err1, last_error); - last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2 - err1 = _mm_sub_epi32(err1, last_error); - last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1 - err1 = _mm_sub_epi32(err1, last_error); - last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0 - err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4 -#else - last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1 - last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0 - err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4 -#endif - tmp = _mm_slli_si128(err0, 12); // e0 0 0 0 - last_error = _mm_srli_si128(err1, 4); // 0 e1 e2 e3 - last_error = _mm_or_si128(last_error, tmp); // e0 e1 e2 e3 - - tmp = _mm_srai_epi32(err0, 31); - err0 = _mm_xor_si128(err0, tmp); - err0 = _mm_sub_epi32(err0, tmp); - tmp = _mm_srai_epi32(err1, 31); - err1 = _mm_xor_si128(err1, tmp); - err1 = _mm_sub_epi32(err1, tmp); - - total_err0 = _mm_add_epi32(total_err0, err0); // 0 0 0 te0 - total_err1 = _mm_add_epi32(total_err1, err1); // te1 te2 te3 te4 - } - } - - total_error_0 = _mm_cvtsi128_si32(total_err0); - total_err2 = total_err1; // te1 te2 te3 te4 - total_err1 = _mm_srli_si128(total_err1, 8); // 0 0 te1 te2 - total_error_4 = _mm_cvtsi128_si32(total_err2); - total_error_2 = _mm_cvtsi128_si32(total_err1); - total_err2 = _mm_srli_si128(total_err2, 4); // 0 te1 te2 te3 - total_err1 = _mm_srli_si128(total_err1, 4); // 0 0 0 te1 - total_error_3 = _mm_cvtsi128_si32(total_err2); - total_error_1 = _mm_cvtsi128_si32(total_err1); - - /* prefer higher order */ - if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4)) - order = 0; - else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4)) - order = 1; - else if(total_error_2 < flac_min(total_error_3, total_error_4)) - order = 2; - else if(total_error_3 < total_error_4) - order = 3; - else - order = 4; - - /* Estimate the expected number of bits per residual signal sample. */ - /* 'total_error*' is linearly related to the variance of the residual */ - /* signal, so we use it directly to compute E(|x|) */ - FLAC__ASSERT(data_len > 0 || total_error_0 == 0); - FLAC__ASSERT(data_len > 0 || total_error_1 == 0); - FLAC__ASSERT(data_len > 0 || total_error_2 == 0); - FLAC__ASSERT(data_len > 0 || total_error_3 == 0); - FLAC__ASSERT(data_len > 0 || total_error_4 == 0); - - residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0); - - return order; -} - -FLAC__SSE_TARGET("sse2") -unsigned FLAC__fixed_compute_best_predictor_wide_intrin_sse2(const FLAC__int32 data[], unsigned data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]) -{ - FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4; - unsigned i, order; - - __m128i total_err0, total_err1, total_err3; - - { - FLAC__int32 itmp; - __m128i last_error, zero = _mm_setzero_si128(); - - last_error = _mm_cvtsi32_si128(data[-1]); // 0 0 0 le0 - itmp = data[-2]; - last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0)); - last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 0 le0 le1 - itmp -= data[-3]; - last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0)); - last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // 0 le0 le1 le2 - itmp -= data[-3] - data[-4]; - last_error = _mm_shuffle_epi32(last_error, _MM_SHUFFLE(2,1,0,0)); - last_error = _mm_sub_epi32(last_error, _mm_cvtsi32_si128(itmp)); // le0 le1 le2 le3 - - total_err0 = total_err1 = total_err3 = _mm_setzero_si128(); - for(i = 0; i < data_len; i++) { - __m128i err0, err1, tmp; - err0 = _mm_cvtsi32_si128(data[i]); // 0 0 0 e0 - err1 = _mm_shuffle_epi32(err0, _MM_SHUFFLE(0,0,0,0)); // e0 e0 e0 e0 -#if 1 /* OPT_SSE */ - err1 = _mm_sub_epi32(err1, last_error); - last_error = _mm_srli_si128(last_error, 4); // 0 le0 le1 le2 - err1 = _mm_sub_epi32(err1, last_error); - last_error = _mm_srli_si128(last_error, 4); // 0 0 le0 le1 - err1 = _mm_sub_epi32(err1, last_error); - last_error = _mm_srli_si128(last_error, 4); // 0 0 0 le0 - err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4 -#else - last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 8)); // le0 le1 le2+le0 le3+le1 - last_error = _mm_add_epi32(last_error, _mm_srli_si128(last_error, 4)); // le0 le1+le0 le2+le0+le1 le3+le1+le2+le0 - err1 = _mm_sub_epi32(err1, last_error); // e1 e2 e3 e4 -#endif - tmp = _mm_slli_si128(err0, 12); // e0 0 0 0 - last_error = _mm_srli_si128(err1, 4); // 0 e1 e2 e3 - last_error = _mm_or_si128(last_error, tmp); // e0 e1 e2 e3 - - tmp = _mm_srai_epi32(err0, 31); - err0 = _mm_xor_si128(err0, tmp); - err0 = _mm_sub_epi32(err0, tmp); - tmp = _mm_srai_epi32(err1, 31); - err1 = _mm_xor_si128(err1, tmp); - err1 = _mm_sub_epi32(err1, tmp); - - total_err0 = _mm_add_epi64(total_err0, err0); // 0 te0 - err0 = _mm_unpacklo_epi32(err1, zero); // 0 |e3| 0 |e4| - err1 = _mm_unpackhi_epi32(err1, zero); // 0 |e1| 0 |e2| - total_err3 = _mm_add_epi64(total_err3, err0); // te3 te4 - total_err1 = _mm_add_epi64(total_err1, err1); // te1 te2 - } - } - - m128i_to_i64(total_error_0, total_err0); - m128i_to_i64(total_error_4, total_err3); - m128i_to_i64(total_error_2, total_err1); - total_err3 = _mm_srli_si128(total_err3, 8); // 0 te3 - total_err1 = _mm_srli_si128(total_err1, 8); // 0 te1 - m128i_to_i64(total_error_3, total_err3); - m128i_to_i64(total_error_1, total_err1); - - /* prefer higher order */ - if(total_error_0 < flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4)) - order = 0; - else if(total_error_1 < flac_min(flac_min(total_error_2, total_error_3), total_error_4)) - order = 1; - else if(total_error_2 < flac_min(total_error_3, total_error_4)) - order = 2; - else if(total_error_3 < total_error_4) - order = 3; - else - order = 4; - - /* Estimate the expected number of bits per residual signal sample. */ - /* 'total_error*' is linearly related to the variance of the residual */ - /* signal, so we use it directly to compute E(|x|) */ - FLAC__ASSERT(data_len > 0 || total_error_0 == 0); - FLAC__ASSERT(data_len > 0 || total_error_1 == 0); - FLAC__ASSERT(data_len > 0 || total_error_2 == 0); - FLAC__ASSERT(data_len > 0 || total_error_3 == 0); - FLAC__ASSERT(data_len > 0 || total_error_4 == 0); - - residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0); - residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0); - - return order; -} - -#endif /* FLAC__SSE2_SUPPORTED */ -#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */ -#endif /* FLAC__NO_ASM */ -#endif /* FLAC__INTEGER_ONLY_LIBRARY */ |