[pcsx_rearmed.git] / deps / flac-1.3.2 / src / libFLAC / stream_encoder_intrin_avx2.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__AVX2_SUPPORTED

#include <stdlib.h>    /* for abs() */
#include <immintrin.h> /* AVX2 */
#include "FLAC/assert.h"

FLAC__SSE_TARGET("avx2")
void FLAC__precompute_partition_info_sums_intrin_avx2(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++) {
				__m256i sum256 = _mm256_setzero_si256();
				__m128i sum128;
				end += default_partition_samples;

				for( ; (int)residual_sample < (int)end-7; residual_sample+=8) {
					__m256i res256 = _mm256_abs_epi32(_mm256_loadu_si256((const __m256i*)(residual+residual_sample)));
					sum256 = _mm256_add_epi32(sum256, res256);
				}

				sum128 = _mm_add_epi32(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));

				for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
					__m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
					sum128 = _mm_add_epi32(sum128, res128);
				}

				for( ; residual_sample < end; residual_sample++) {
					__m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
					sum128 = _mm_add_epi32(sum128, res128);
				}

				sum128 = _mm_hadd_epi32(sum128, sum128);
				sum128 = _mm_hadd_epi32(sum128, sum128);
				abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(sum128);
/* 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++) {
				__m256i sum256 = _mm256_setzero_si256();
				__m128i sum128;
				end += default_partition_samples;

				for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
					__m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
					__m256i res256 = _mm256_cvtepu32_epi64(res128);
					sum256 = _mm256_add_epi64(sum256, res256);
				}

				sum128 = _mm_add_epi64(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));

				for( ; (int)residual_sample < (int)end-1; residual_sample+=2) {
					__m128i res128 = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(residual+residual_sample)));
					res128 = _mm_cvtepu32_epi64(res128);
					sum128 = _mm_add_epi64(sum128, res128);
				}

				for( ; residual_sample < end; residual_sample++) {
					__m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
					sum128 = _mm_add_epi64(sum128, res128);
				}

				sum128 = _mm_add_epi64(sum128, _mm_srli_si128(sum128, 8));
				_mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), sum128);
			}
		}
	}

	/* 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;
			}
		}
	}
	_mm256_zeroupper();
}

#endif /* FLAC__AVX2_SUPPORTED */
#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
#endif /* FLAC__NO_ASM */
Commit	Line	Data
ce188d4d	1	/* libFLAC - Free Lossless Audio Codec library
	2	* Copyright (C) 2000-2009 Josh Coalson
	3	* Copyright (C) 2011-2016 Xiph.Org Foundation
	4	*
	5	* Redistribution and use in source and binary forms, with or without
	6	* modification, are permitted provided that the following conditions
	7	* are met:
	8	*
	9	* - Redistributions of source code must retain the above copyright
	10	* notice, this list of conditions and the following disclaimer.
	11	*
	12	* - Redistributions in binary form must reproduce the above copyright
	13	* notice, this list of conditions and the following disclaimer in the
	14	* documentation and/or other materials provided with the distribution.
	15	*
	16	* - Neither the name of the Xiph.org Foundation nor the names of its
	17	* contributors may be used to endorse or promote products derived from
	18	* this software without specific prior written permission.
	19	*
	20	* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	21	* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	22	* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	23	* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR
	24	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	25	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	26	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	27	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
	28	* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
	29	* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
	30	* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	31	*/
	32
	33	#ifdef HAVE_CONFIG_H
	34	# include <config.h>
	35	#endif
	36
	37	#include "private/cpu.h"
	38
	39	#ifndef FLAC__NO_ASM
	40	#if (defined FLAC__CPU_IA32 \|\| defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
	41	#include "private/stream_encoder.h"
	42	#include "private/bitmath.h"
	43	#ifdef FLAC__AVX2_SUPPORTED
	44
	45	#include <stdlib.h> /* for abs() */
	46	#include <immintrin.h> /* AVX2 */
	47	#include "FLAC/assert.h"
	48
	49	FLAC__SSE_TARGET("avx2")
	50	void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
	51	unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps)
	52	{
	53	const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
	54	unsigned partitions = 1u << max_partition_order;
	55
	56	FLAC__ASSERT(default_partition_samples > predictor_order);
	57
	58	/* first do max_partition_order */
	59	{
	60	const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
	61	unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
	62
	63	if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
	64	for(partition = residual_sample = 0; partition < partitions; partition++) {
65	__m256i sum256 = _mm256_setzero_si256();
66	__m128i sum128;
67	end += default_partition_samples;
68
69	for( ; (int)residual_sample < (int)end-7; residual_sample+=8) {
70	__m256i res256 = _mm256_abs_epi32(_mm256_loadu_si256((const __m256i*)(residual+residual_sample)));
71	sum256 = _mm256_add_epi32(sum256, res256);
72	}
73
74	sum128 = _mm_add_epi32(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));
75
76	for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
77	__m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
78	sum128 = _mm_add_epi32(sum128, res128);
79	}
80
81	for( ; residual_sample < end; residual_sample++) {
82	__m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
83	sum128 = _mm_add_epi32(sum128, res128);
84	}
85
86	sum128 = _mm_hadd_epi32(sum128, sum128);
87	sum128 = _mm_hadd_epi32(sum128, sum128);
88	abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(sum128);
89	/* workaround for a bug in MSVC2015U2 - see https://connect.microsoft.com/VisualStudio/feedback/details/2659191/incorrect-code-generation-for-x86-64 */
90	#if (defined _MSC_VER) && (_MSC_FULL_VER == 190023918) && (defined FLAC__CPU_X86_64)
91	abs_residual_partition_sums[partition] &= 0xFFFFFFFF; /**/
92	#endif
93	}
94	}
95	else { /* have to pessimistically use 64 bits for accumulator */
96	for(partition = residual_sample = 0; partition < partitions; partition++) {
97	__m256i sum256 = _mm256_setzero_si256();
98	__m128i sum128;
99	end += default_partition_samples;
100
101	for( ; (int)residual_sample < (int)end-3; residual_sample+=4) {
102	__m128i res128 = _mm_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
103	__m256i res256 = _mm256_cvtepu32_epi64(res128);
104	sum256 = _mm256_add_epi64(sum256, res256);
105	}
106
107	sum128 = _mm_add_epi64(_mm256_extracti128_si256(sum256, 1), _mm256_castsi256_si128(sum256));
108
109	for( ; (int)residual_sample < (int)end-1; residual_sample+=2) {
110	__m128i res128 = _mm_abs_epi32(_mm_loadl_epi64((const __m128i*)(residual+residual_sample)));
111	res128 = _mm_cvtepu32_epi64(res128);
112	sum128 = _mm_add_epi64(sum128, res128);
113	}
114
115	for( ; residual_sample < end; residual_sample++) {
116	__m128i res128 = _mm_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
117	sum128 = _mm_add_epi64(sum128, res128);
118	}
119
120	sum128 = _mm_add_epi64(sum128, _mm_srli_si128(sum128, 8));
121	_mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), sum128);
122	}
123	}
124	}
125
126	/* now merge partitions for lower orders */
127	{
128	unsigned from_partition = 0, to_partition = partitions;
129	int partition_order;
130	for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
131	unsigned i;
132	partitions >>= 1;
133	for(i = 0; i < partitions; i++) {
134	abs_residual_partition_sums[to_partition++] =
135	abs_residual_partition_sums[from_partition ] +
136	abs_residual_partition_sums[from_partition+1];
137	from_partition += 2;
138	}
139	}
140	}
141	_mm256_zeroupper();
142	}
143
144	#endif /* FLAC__AVX2_SUPPORTED */
145	#endif /* (FLAC__CPU_IA32 \|\| FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
146	#endif /* FLAC__NO_ASM */