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/*
* Copyright (c) 2018, Alliance for Open Media. All rights reserved
*
* This source code is subject to the terms of the BSD 2 Clause License and
* the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
* was not distributed with this source code in the LICENSE file, you can
* obtain it at www.aomedia.org/license/software. If the Alliance for Open
* Media Patent License 1.0 was not distributed with this source code in the
* PATENTS file, you can obtain it at www.aomedia.org/license/patent.
*/
#ifndef AOM_AV1_COMMON_X86_AV1_TXFM_SSE4_H_
#define AOM_AV1_COMMON_X86_AV1_TXFM_SSE4_H_
#include <smmintrin.h>
#ifdef __cplusplus
extern "C" {
#endif
static INLINE __m128i av1_round_shift_32_sse4_1(__m128i vec, int bit) {
__m128i tmp, round;
round = _mm_set1_epi32(1 << (bit - 1));
tmp = _mm_add_epi32(vec, round);
return _mm_srai_epi32(tmp, bit);
}
static INLINE void av1_round_shift_array_32_sse4_1(__m128i *input,
__m128i *output,
const int size,
const int bit) {
if (bit > 0) {
int i;
for (i = 0; i < size; i++) {
output[i] = av1_round_shift_32_sse4_1(input[i], bit);
}
} else {
int i;
for (i = 0; i < size; i++) {
output[i] = _mm_slli_epi32(input[i], -bit);
}
}
}
static INLINE void av1_round_shift_rect_array_32_sse4_1(__m128i *input,
__m128i *output,
const int size,
const int bit,
const int val) {
const __m128i sqrt2 = _mm_set1_epi32(val);
if (bit > 0) {
int i;
for (i = 0; i < size; i++) {
const __m128i r0 = av1_round_shift_32_sse4_1(input[i], bit);
const __m128i r1 = _mm_mullo_epi32(sqrt2, r0);
output[i] = av1_round_shift_32_sse4_1(r1, NewSqrt2Bits);
}
} else {
int i;
for (i = 0; i < size; i++) {
const __m128i r0 = _mm_slli_epi32(input[i], -bit);
const __m128i r1 = _mm_mullo_epi32(sqrt2, r0);
output[i] = av1_round_shift_32_sse4_1(r1, NewSqrt2Bits);
}
}
}
#ifdef __cplusplus
}
#endif
#endif // AOM_AV1_COMMON_X86_AV1_TXFM_SSE4_H_
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