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/*
* Copyright (c) 2016, 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 _HIGHBD_TXFM_UTILITY_SSE4_H
#define _HIGHBD_TXFM_UTILITY_SSE4_H
#include <smmintrin.h> /* SSE4.1 */
#define TRANSPOSE_4X4(x0, x1, x2, x3, y0, y1, y2, y3) \
do { \
__m128i u0, u1, u2, u3; \
u0 = _mm_unpacklo_epi32(x0, x1); \
u1 = _mm_unpackhi_epi32(x0, x1); \
u2 = _mm_unpacklo_epi32(x2, x3); \
u3 = _mm_unpackhi_epi32(x2, x3); \
y0 = _mm_unpacklo_epi64(u0, u2); \
y1 = _mm_unpackhi_epi64(u0, u2); \
y2 = _mm_unpacklo_epi64(u1, u3); \
y3 = _mm_unpackhi_epi64(u1, u3); \
} while (0)
static INLINE void transpose_8x8(const __m128i *in, __m128i *out) {
TRANSPOSE_4X4(in[0], in[2], in[4], in[6], out[0], out[2], out[4], out[6]);
TRANSPOSE_4X4(in[1], in[3], in[5], in[7], out[8], out[10], out[12], out[14]);
TRANSPOSE_4X4(in[8], in[10], in[12], in[14], out[1], out[3], out[5], out[7]);
TRANSPOSE_4X4(in[9], in[11], in[13], in[15], out[9], out[11], out[13],
out[15]);
}
static INLINE void transpose_16x16(const __m128i *in, __m128i *out) {
// Upper left 8x8
TRANSPOSE_4X4(in[0], in[4], in[8], in[12], out[0], out[4], out[8], out[12]);
TRANSPOSE_4X4(in[1], in[5], in[9], in[13], out[16], out[20], out[24],
out[28]);
TRANSPOSE_4X4(in[16], in[20], in[24], in[28], out[1], out[5], out[9],
out[13]);
TRANSPOSE_4X4(in[17], in[21], in[25], in[29], out[17], out[21], out[25],
out[29]);
// Upper right 8x8
TRANSPOSE_4X4(in[2], in[6], in[10], in[14], out[32], out[36], out[40],
out[44]);
TRANSPOSE_4X4(in[3], in[7], in[11], in[15], out[48], out[52], out[56],
out[60]);
TRANSPOSE_4X4(in[18], in[22], in[26], in[30], out[33], out[37], out[41],
out[45]);
TRANSPOSE_4X4(in[19], in[23], in[27], in[31], out[49], out[53], out[57],
out[61]);
// Lower left 8x8
TRANSPOSE_4X4(in[32], in[36], in[40], in[44], out[2], out[6], out[10],
out[14]);
TRANSPOSE_4X4(in[33], in[37], in[41], in[45], out[18], out[22], out[26],
out[30]);
TRANSPOSE_4X4(in[48], in[52], in[56], in[60], out[3], out[7], out[11],
out[15]);
TRANSPOSE_4X4(in[49], in[53], in[57], in[61], out[19], out[23], out[27],
out[31]);
// Lower right 8x8
TRANSPOSE_4X4(in[34], in[38], in[42], in[46], out[34], out[38], out[42],
out[46]);
TRANSPOSE_4X4(in[35], in[39], in[43], in[47], out[50], out[54], out[58],
out[62]);
TRANSPOSE_4X4(in[50], in[54], in[58], in[62], out[35], out[39], out[43],
out[47]);
TRANSPOSE_4X4(in[51], in[55], in[59], in[63], out[51], out[55], out[59],
out[63]);
}
// Note:
// rounding = 1 << (bit - 1)
static INLINE __m128i half_btf_sse4_1(__m128i w0, __m128i n0, __m128i w1,
__m128i n1, __m128i rounding, int bit) {
__m128i x, y;
x = _mm_mullo_epi32(w0, n0);
y = _mm_mullo_epi32(w1, n1);
x = _mm_add_epi32(x, y);
x = _mm_add_epi32(x, rounding);
x = _mm_srai_epi32(x, bit);
return x;
}
#endif // _HIGHBD_TXFM_UTILITY_SSE4_H
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