[pcsx_rearmed.git] / deps / flac-1.3.2 / src / libFLAC / stream_encoder_intrin_sse2.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__SSE2_SUPPORTED

#include <stdlib.h>    /* for abs() */
#include <emmintrin.h> /* SSE2 */
#include "FLAC/assert.h"
#include "share/compat.h"

FLAC__SSE_TARGET("sse2")
static inline __m128i local_abs_epi32(__m128i val)
{
	__m128i mask = _mm_srai_epi32(val, 31);
	val = _mm_xor_si128(val, mask);
	val = _mm_sub_epi32(val, mask);
	return val;
}


FLAC__SSE_TARGET("sse2")
void FLAC__precompute_partition_info_sums_intrin_sse2(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 = local_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 = local_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 = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
					mm_sum = _mm_add_epi32(mm_sum, mm_res);
				}

				mm_sum = _mm_add_epi32(mm_sum, _mm_srli_si128(mm_sum, 8));
				mm_sum = _mm_add_epi32(mm_sum, _mm_srli_si128(mm_sum, 4));
				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 = local_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 = local_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 = local_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__SSE2_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__SSE2_SUPPORTED
	44
	45	#include <stdlib.h> /* for abs() */
	46	#include <emmintrin.h> /* SSE2 */
	47	#include "FLAC/assert.h"
	48	#include "share/compat.h"
	49
	50	FLAC__SSE_TARGET("sse2")
	51	static inline __m128i local_abs_epi32(__m128i val)
	52	{
	53	__m128i mask = _mm_srai_epi32(val, 31);
	54	val = _mm_xor_si128(val, mask);
	55	val = _mm_sub_epi32(val, mask);
	56	return val;
	57	}
	58
	59
	60	FLAC__SSE_TARGET("sse2")
	61	void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
	62	unsigned residual_samples, unsigned predictor_order, unsigned min_partition_order, unsigned max_partition_order, unsigned bps)
	63	{
	64	const unsigned default_partition_samples = (residual_samples + predictor_order) >> max_partition_order;
65	unsigned partitions = 1u << max_partition_order;
66
67	FLAC__ASSERT(default_partition_samples > predictor_order);
68
69	/* first do max_partition_order */
70	{
71	const unsigned threshold = 32 - FLAC__bitmath_ilog2(default_partition_samples);
72	unsigned partition, residual_sample, end = (unsigned)(-(int)predictor_order);
73
74	if(bps + FLAC__MAX_EXTRA_RESIDUAL_BPS < threshold) {
75	for(partition = residual_sample = 0; partition < partitions; partition++) {
76	__m128i mm_sum = _mm_setzero_si128();
77	unsigned e1, e3;
78	end += default_partition_samples;
79
80	e1 = (residual_sample + 3) & ~3; e3 = end & ~3;
81	if(e1 > end)
82	e1 = end; /* try flac -l 1 -b 16 and you'll be here */
83
84	/* assumption: residual[] is properly aligned so (residual + e1) is properly aligned too and _mm_loadu_si128() is fast */
85	for( ; residual_sample < e1; residual_sample++) {
86	__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
87	mm_sum = _mm_add_epi32(mm_sum, mm_res);
88	}
89
90	for( ; residual_sample < e3; residual_sample+=4) {
91	__m128i mm_res = local_abs_epi32(_mm_loadu_si128((const __m128i*)(residual+residual_sample)));
92	mm_sum = _mm_add_epi32(mm_sum, mm_res);
93	}
94
95	for( ; residual_sample < end; residual_sample++) {
96	__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
97	mm_sum = _mm_add_epi32(mm_sum, mm_res);
98	}
99
100	mm_sum = _mm_add_epi32(mm_sum, _mm_srli_si128(mm_sum, 8));
101	mm_sum = _mm_add_epi32(mm_sum, _mm_srli_si128(mm_sum, 4));
102	abs_residual_partition_sums[partition] = (FLAC__uint32)_mm_cvtsi128_si32(mm_sum);
103	/* workaround for a bug in MSVC2015U2 - see https://connect.microsoft.com/VisualStudio/feedback/details/2659191/incorrect-code-generation-for-x86-64 */
104	#if (defined _MSC_VER) && (_MSC_FULL_VER == 190023918) && (defined FLAC__CPU_X86_64)
105	abs_residual_partition_sums[partition] &= 0xFFFFFFFF;
106	#endif
107	}
108	}
109	else { /* have to pessimistically use 64 bits for accumulator */
110	for(partition = residual_sample = 0; partition < partitions; partition++) {
111	__m128i mm_sum = _mm_setzero_si128();
112	unsigned e1, e3;
113	end += default_partition_samples;
114
115	e1 = (residual_sample + 1) & ~1; e3 = end & ~1;
116	FLAC__ASSERT(e1 <= end);
117
118	for( ; residual_sample < e1; residual_sample++) {
119	__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample])); /* 0 0 0 \|r0\| == 00 \|r0_64\| */
120	mm_sum = _mm_add_epi64(mm_sum, mm_res);
121	}
122
123	for( ; residual_sample < e3; residual_sample+=2) {
124	__m128i mm_res = local_abs_epi32(_mm_loadl_epi64((const __m128i)(residual+residual_sample))); / 0 0 \|r1\| \|r0\| */
125	mm_res = _mm_shuffle_epi32(mm_res, _MM_SHUFFLE(3,1,2,0)); /* 0 \|r1\| 0 \|r0\| == \|r1_64\| \|r0_64\| */
126	mm_sum = _mm_add_epi64(mm_sum, mm_res);
127	}
128
129	for( ; residual_sample < end; residual_sample++) {
130	__m128i mm_res = local_abs_epi32(_mm_cvtsi32_si128(residual[residual_sample]));
131	mm_sum = _mm_add_epi64(mm_sum, mm_res);
132	}
133
134	mm_sum = _mm_add_epi64(mm_sum, _mm_srli_si128(mm_sum, 8));
135	_mm_storel_epi64((__m128i*)(abs_residual_partition_sums+partition), mm_sum);
136	}
137	}
138	}
139
140	/* now merge partitions for lower orders */
141	{
142	unsigned from_partition = 0, to_partition = partitions;
143	int partition_order;
144	for(partition_order = (int)max_partition_order - 1; partition_order >= (int)min_partition_order; partition_order--) {
145	unsigned i;
146	partitions >>= 1;
147	for(i = 0; i < partitions; i++) {
148	abs_residual_partition_sums[to_partition++] =
149	abs_residual_partition_sums[from_partition ] +
150	abs_residual_partition_sums[from_partition+1];
151	from_partition += 2;
152	}
153	}
154	}
155	}
156
157	#endif /* FLAC__SSE2_SUPPORTED */
158	#endif /* (FLAC__CPU_IA32 \|\| FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
159	#endif /* FLAC__NO_ASM */