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/*
* Copyright (c) 2018, Alliance for Open Media. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef AOM_AV1_COMMON_ARM_TRANSPOSE_NEON_H_
#define AOM_AV1_COMMON_ARM_TRANSPOSE_NEON_H_
#include <arm_neon.h>
static INLINE void transpose_u8_8x8(uint8x8_t *a0, uint8x8_t *a1, uint8x8_t *a2,
uint8x8_t *a3, uint8x8_t *a4, uint8x8_t *a5,
uint8x8_t *a6, uint8x8_t *a7) {
// Swap 8 bit elements. Goes from:
// a0: 00 01 02 03 04 05 06 07
// a1: 10 11 12 13 14 15 16 17
// a2: 20 21 22 23 24 25 26 27
// a3: 30 31 32 33 34 35 36 37
// a4: 40 41 42 43 44 45 46 47
// a5: 50 51 52 53 54 55 56 57
// a6: 60 61 62 63 64 65 66 67
// a7: 70 71 72 73 74 75 76 77
// to:
// b0.val[0]: 00 10 02 12 04 14 06 16 40 50 42 52 44 54 46 56
// b0.val[1]: 01 11 03 13 05 15 07 17 41 51 43 53 45 55 47 57
// b1.val[0]: 20 30 22 32 24 34 26 36 60 70 62 72 64 74 66 76
// b1.val[1]: 21 31 23 33 25 35 27 37 61 71 63 73 65 75 67 77
const uint8x16x2_t b0 =
vtrnq_u8(vcombine_u8(*a0, *a4), vcombine_u8(*a1, *a5));
const uint8x16x2_t b1 =
vtrnq_u8(vcombine_u8(*a2, *a6), vcombine_u8(*a3, *a7));
// Swap 16 bit elements resulting in:
// c0.val[0]: 00 10 20 30 04 14 24 34 40 50 60 70 44 54 64 74
// c0.val[1]: 02 12 22 32 06 16 26 36 42 52 62 72 46 56 66 76
// c1.val[0]: 01 11 21 31 05 15 25 35 41 51 61 71 45 55 65 75
// c1.val[1]: 03 13 23 33 07 17 27 37 43 53 63 73 47 57 67 77
const uint16x8x2_t c0 = vtrnq_u16(vreinterpretq_u16_u8(b0.val[0]),
vreinterpretq_u16_u8(b1.val[0]));
const uint16x8x2_t c1 = vtrnq_u16(vreinterpretq_u16_u8(b0.val[1]),
vreinterpretq_u16_u8(b1.val[1]));
// Unzip 32 bit elements resulting in:
// d0.val[0]: 00 10 20 30 40 50 60 70 01 11 21 31 41 51 61 71
// d0.val[1]: 04 14 24 34 44 54 64 74 05 15 25 35 45 55 65 75
// d1.val[0]: 02 12 22 32 42 52 62 72 03 13 23 33 43 53 63 73
// d1.val[1]: 06 16 26 36 46 56 66 76 07 17 27 37 47 57 67 77
const uint32x4x2_t d0 = vuzpq_u32(vreinterpretq_u32_u16(c0.val[0]),
vreinterpretq_u32_u16(c1.val[0]));
const uint32x4x2_t d1 = vuzpq_u32(vreinterpretq_u32_u16(c0.val[1]),
vreinterpretq_u32_u16(c1.val[1]));
*a0 = vreinterpret_u8_u32(vget_low_u32(d0.val[0]));
*a1 = vreinterpret_u8_u32(vget_high_u32(d0.val[0]));
*a2 = vreinterpret_u8_u32(vget_low_u32(d1.val[0]));
*a3 = vreinterpret_u8_u32(vget_high_u32(d1.val[0]));
*a4 = vreinterpret_u8_u32(vget_low_u32(d0.val[1]));
*a5 = vreinterpret_u8_u32(vget_high_u32(d0.val[1]));
*a6 = vreinterpret_u8_u32(vget_low_u32(d1.val[1]));
*a7 = vreinterpret_u8_u32(vget_high_u32(d1.val[1]));
}
static INLINE void transpose_u8_8x4(uint8x8_t *a0, uint8x8_t *a1, uint8x8_t *a2,
uint8x8_t *a3) {
// Swap 8 bit elements. Goes from:
// a0: 00 01 02 03 04 05 06 07
// a1: 10 11 12 13 14 15 16 17
// a2: 20 21 22 23 24 25 26 27
// a3: 30 31 32 33 34 35 36 37
// to:
// b0.val[0]: 00 10 02 12 04 14 06 16
// b0.val[1]: 01 11 03 13 05 15 07 17
// b1.val[0]: 20 30 22 32 24 34 26 36
// b1.val[1]: 21 31 23 33 25 35 27 37
const uint8x8x2_t b0 = vtrn_u8(*a0, *a1);
const uint8x8x2_t b1 = vtrn_u8(*a2, *a3);
// Swap 16 bit elements resulting in:
// c0.val[0]: 00 10 20 30 04 14 24 34
// c0.val[1]: 02 12 22 32 06 16 26 36
// c1.val[0]: 01 11 21 31 05 15 25 35
// c1.val[1]: 03 13 23 33 07 17 27 37
const uint16x4x2_t c0 =
vtrn_u16(vreinterpret_u16_u8(b0.val[0]), vreinterpret_u16_u8(b1.val[0]));
const uint16x4x2_t c1 =
vtrn_u16(vreinterpret_u16_u8(b0.val[1]), vreinterpret_u16_u8(b1.val[1]));
*a0 = vreinterpret_u8_u16(c0.val[0]);
*a1 = vreinterpret_u8_u16(c1.val[0]);
*a2 = vreinterpret_u8_u16(c0.val[1]);
*a3 = vreinterpret_u8_u16(c1.val[1]);
}
static INLINE void transpose_u8_4x4(uint8x8_t *a0, uint8x8_t *a1) {
// Swap 16 bit elements. Goes from:
// a0: 00 01 02 03 10 11 12 13
// a1: 20 21 22 23 30 31 32 33
// to:
// b0.val[0]: 00 01 20 21 10 11 30 31
// b0.val[1]: 02 03 22 23 12 13 32 33
const uint16x4x2_t b0 =
vtrn_u16(vreinterpret_u16_u8(*a0), vreinterpret_u16_u8(*a1));
// Swap 32 bit elements resulting in:
// c0.val[0]: 00 01 20 21 02 03 22 23
// c0.val[1]: 10 11 30 31 12 13 32 33
const uint32x2x2_t c0 = vtrn_u32(vreinterpret_u32_u16(b0.val[0]),
vreinterpret_u32_u16(b0.val[1]));
// Swap 8 bit elements resulting in:
// d0.val[0]: 00 10 20 30 02 12 22 32
// d0.val[1]: 01 11 21 31 03 13 23 33
const uint8x8x2_t d0 =
vtrn_u8(vreinterpret_u8_u32(c0.val[0]), vreinterpret_u8_u32(c0.val[1]));
*a0 = d0.val[0];
*a1 = d0.val[1];
}
static INLINE void transpose_u8_4x8(uint8x8_t *a0, uint8x8_t *a1, uint8x8_t *a2,
uint8x8_t *a3, const uint8x8_t a4,
const uint8x8_t a5, const uint8x8_t a6,
const uint8x8_t a7) {
// Swap 32 bit elements. Goes from:
// a0: 00 01 02 03 XX XX XX XX
// a1: 10 11 12 13 XX XX XX XX
// a2: 20 21 22 23 XX XX XX XX
// a3; 30 31 32 33 XX XX XX XX
// a4: 40 41 42 43 XX XX XX XX
// a5: 50 51 52 53 XX XX XX XX
// a6: 60 61 62 63 XX XX XX XX
// a7: 70 71 72 73 XX XX XX XX
// to:
// b0.val[0]: 00 01 02 03 40 41 42 43
// b1.val[0]: 10 11 12 13 50 51 52 53
// b2.val[0]: 20 21 22 23 60 61 62 63
// b3.val[0]: 30 31 32 33 70 71 72 73
const uint32x2x2_t b0 =
vtrn_u32(vreinterpret_u32_u8(*a0), vreinterpret_u32_u8(a4));
const uint32x2x2_t b1 =
vtrn_u32(vreinterpret_u32_u8(*a1), vreinterpret_u32_u8(a5));
const uint32x2x2_t b2 =
vtrn_u32(vreinterpret_u32_u8(*a2), vreinterpret_u32_u8(a6));
const uint32x2x2_t b3 =
vtrn_u32(vreinterpret_u32_u8(*a3), vreinterpret_u32_u8(a7));
// Swap 16 bit elements resulting in:
// c0.val[0]: 00 01 20 21 40 41 60 61
// c0.val[1]: 02 03 22 23 42 43 62 63
// c1.val[0]: 10 11 30 31 50 51 70 71
// c1.val[1]: 12 13 32 33 52 53 72 73
const uint16x4x2_t c0 = vtrn_u16(vreinterpret_u16_u32(b0.val[0]),
vreinterpret_u16_u32(b2.val[0]));
const uint16x4x2_t c1 = vtrn_u16(vreinterpret_u16_u32(b1.val[0]),
vreinterpret_u16_u32(b3.val[0]));
// Swap 8 bit elements resulting in:
// d0.val[0]: 00 10 20 30 40 50 60 70
// d0.val[1]: 01 11 21 31 41 51 61 71
// d1.val[0]: 02 12 22 32 42 52 62 72
// d1.val[1]: 03 13 23 33 43 53 63 73
const uint8x8x2_t d0 =
vtrn_u8(vreinterpret_u8_u16(c0.val[0]), vreinterpret_u8_u16(c1.val[0]));
const uint8x8x2_t d1 =
vtrn_u8(vreinterpret_u8_u16(c0.val[1]), vreinterpret_u8_u16(c1.val[1]));
*a0 = d0.val[0];
*a1 = d0.val[1];
*a2 = d1.val[0];
*a3 = d1.val[1];
}
static INLINE void transpose_u16_4x8(uint16x4_t *a0, uint16x4_t *a1,
uint16x4_t *a2, uint16x4_t *a3,
uint16x4_t *a4, uint16x4_t *a5,
uint16x4_t *a6, uint16x4_t *a7,
uint16x8_t *o0, uint16x8_t *o1,
uint16x8_t *o2, uint16x8_t *o3) {
// Swap 16 bit elements. Goes from:
// a0: 00 01 02 03
// a1: 10 11 12 13
// a2: 20 21 22 23
// a3: 30 31 32 33
// a4: 40 41 42 43
// a5: 50 51 52 53
// a6: 60 61 62 63
// a7: 70 71 72 73
// to:
// b0.val[0]: 00 10 02 12
// b0.val[1]: 01 11 03 13
// b1.val[0]: 20 30 22 32
// b1.val[1]: 21 31 23 33
// b2.val[0]: 40 50 42 52
// b2.val[1]: 41 51 43 53
// b3.val[0]: 60 70 62 72
// b3.val[1]: 61 71 63 73
uint16x4x2_t b0 = vtrn_u16(*a0, *a1);
uint16x4x2_t b1 = vtrn_u16(*a2, *a3);
uint16x4x2_t b2 = vtrn_u16(*a4, *a5);
uint16x4x2_t b3 = vtrn_u16(*a6, *a7);
// Swap 32 bit elements resulting in:
// c0.val[0]: 00 10 20 30
// c0.val[1]: 02 12 22 32
// c1.val[0]: 01 11 21 31
// c1.val[1]: 03 13 23 33
// c2.val[0]: 40 50 60 70
// c2.val[1]: 42 52 62 72
// c3.val[0]: 41 51 61 71
// c3.val[1]: 43 53 63 73
uint32x2x2_t c0 = vtrn_u32(vreinterpret_u32_u16(b0.val[0]),
vreinterpret_u32_u16(b1.val[0]));
uint32x2x2_t c1 = vtrn_u32(vreinterpret_u32_u16(b0.val[1]),
vreinterpret_u32_u16(b1.val[1]));
uint32x2x2_t c2 = vtrn_u32(vreinterpret_u32_u16(b2.val[0]),
vreinterpret_u32_u16(b3.val[0]));
uint32x2x2_t c3 = vtrn_u32(vreinterpret_u32_u16(b2.val[1]),
vreinterpret_u32_u16(b3.val[1]));
// Swap 64 bit elements resulting in:
// o0: 00 10 20 30 40 50 60 70
// o1: 01 11 21 31 41 51 61 71
// o2: 02 12 22 32 42 52 62 72
// o3: 03 13 23 33 43 53 63 73
*o0 = vcombine_u16(vreinterpret_u16_u32(c0.val[0]),
vreinterpret_u16_u32(c2.val[0]));
*o1 = vcombine_u16(vreinterpret_u16_u32(c1.val[0]),
vreinterpret_u16_u32(c3.val[0]));
*o2 = vcombine_u16(vreinterpret_u16_u32(c0.val[1]),
vreinterpret_u16_u32(c2.val[1]));
*o3 = vcombine_u16(vreinterpret_u16_u32(c1.val[1]),
vreinterpret_u16_u32(c3.val[1]));
}
static INLINE void transpose_u16_8x8(uint16x8_t *a0, uint16x8_t *a1,
uint16x8_t *a2, uint16x8_t *a3,
uint16x8_t *a4, uint16x8_t *a5,
uint16x8_t *a6, uint16x8_t *a7) {
// Swap 16 bit elements. Goes from:
// a0: 00 01 02 03 04 05 06 07
// a1: 10 11 12 13 14 15 16 17
// a2: 20 21 22 23 24 25 26 27
// a3: 30 31 32 33 34 35 36 37
// a4: 40 41 42 43 44 45 46 47
// a5: 50 51 52 53 54 55 56 57
// a6: 60 61 62 63 64 65 66 67
// a7: 70 71 72 73 74 75 76 77
// to:
// b0.val[0]: 00 10 02 12 04 14 06 16
// b0.val[1]: 01 11 03 13 05 15 07 17
// b1.val[0]: 20 30 22 32 24 34 26 36
// b1.val[1]: 21 31 23 33 25 35 27 37
// b2.val[0]: 40 50 42 52 44 54 46 56
// b2.val[1]: 41 51 43 53 45 55 47 57
// b3.val[0]: 60 70 62 72 64 74 66 76
// b3.val[1]: 61 71 63 73 65 75 67 77
const uint16x8x2_t b0 = vtrnq_u16(*a0, *a1);
const uint16x8x2_t b1 = vtrnq_u16(*a2, *a3);
const uint16x8x2_t b2 = vtrnq_u16(*a4, *a5);
const uint16x8x2_t b3 = vtrnq_u16(*a6, *a7);
// Swap 32 bit elements resulting in:
// c0.val[0]: 00 10 20 30 04 14 24 34
// c0.val[1]: 02 12 22 32 06 16 26 36
// c1.val[0]: 01 11 21 31 05 15 25 35
// c1.val[1]: 03 13 23 33 07 17 27 37
// c2.val[0]: 40 50 60 70 44 54 64 74
// c2.val[1]: 42 52 62 72 46 56 66 76
// c3.val[0]: 41 51 61 71 45 55 65 75
// c3.val[1]: 43 53 63 73 47 57 67 77
const uint32x4x2_t c0 = vtrnq_u32(vreinterpretq_u32_u16(b0.val[0]),
vreinterpretq_u32_u16(b1.val[0]));
const uint32x4x2_t c1 = vtrnq_u32(vreinterpretq_u32_u16(b0.val[1]),
vreinterpretq_u32_u16(b1.val[1]));
const uint32x4x2_t c2 = vtrnq_u32(vreinterpretq_u32_u16(b2.val[0]),
vreinterpretq_u32_u16(b3.val[0]));
const uint32x4x2_t c3 = vtrnq_u32(vreinterpretq_u32_u16(b2.val[1]),
vreinterpretq_u32_u16(b3.val[1]));
*a0 = vcombine_u16(vget_low_u16(vreinterpretq_u16_u32(c0.val[0])),
vget_low_u16(vreinterpretq_u16_u32(c2.val[0])));
*a4 = vcombine_u16(vget_high_u16(vreinterpretq_u16_u32(c0.val[0])),
vget_high_u16(vreinterpretq_u16_u32(c2.val[0])));
*a2 = vcombine_u16(vget_low_u16(vreinterpretq_u16_u32(c0.val[1])),
vget_low_u16(vreinterpretq_u16_u32(c2.val[1])));
*a6 = vcombine_u16(vget_high_u16(vreinterpretq_u16_u32(c0.val[1])),
vget_high_u16(vreinterpretq_u16_u32(c2.val[1])));
*a1 = vcombine_u16(vget_low_u16(vreinterpretq_u16_u32(c1.val[0])),
vget_low_u16(vreinterpretq_u16_u32(c3.val[0])));
*a5 = vcombine_u16(vget_high_u16(vreinterpretq_u16_u32(c1.val[0])),
vget_high_u16(vreinterpretq_u16_u32(c3.val[0])));
*a3 = vcombine_u16(vget_low_u16(vreinterpretq_u16_u32(c1.val[1])),
vget_low_u16(vreinterpretq_u16_u32(c3.val[1])));
*a7 = vcombine_u16(vget_high_u16(vreinterpretq_u16_u32(c1.val[1])),
vget_high_u16(vreinterpretq_u16_u32(c3.val[1])));
}
static INLINE void transpose_s16_8x8(int16x8_t *a0, int16x8_t *a1,
int16x8_t *a2, int16x8_t *a3,
int16x8_t *a4, int16x8_t *a5,
int16x8_t *a6, int16x8_t *a7) {
// Swap 16 bit elements. Goes from:
// a0: 00 01 02 03 04 05 06 07
// a1: 10 11 12 13 14 15 16 17
// a2: 20 21 22 23 24 25 26 27
// a3: 30 31 32 33 34 35 36 37
// a4: 40 41 42 43 44 45 46 47
// a5: 50 51 52 53 54 55 56 57
// a6: 60 61 62 63 64 65 66 67
// a7: 70 71 72 73 74 75 76 77
// to:
// b0.val[0]: 00 10 02 12 04 14 06 16
// b0.val[1]: 01 11 03 13 05 15 07 17
// b1.val[0]: 20 30 22 32 24 34 26 36
// b1.val[1]: 21 31 23 33 25 35 27 37
// b2.val[0]: 40 50 42 52 44 54 46 56
// b2.val[1]: 41 51 43 53 45 55 47 57
// b3.val[0]: 60 70 62 72 64 74 66 76
// b3.val[1]: 61 71 63 73 65 75 67 77
const int16x8x2_t b0 = vtrnq_s16(*a0, *a1);
const int16x8x2_t b1 = vtrnq_s16(*a2, *a3);
const int16x8x2_t b2 = vtrnq_s16(*a4, *a5);
const int16x8x2_t b3 = vtrnq_s16(*a6, *a7);
// Swap 32 bit elements resulting in:
// c0.val[0]: 00 10 20 30 04 14 24 34
// c0.val[1]: 02 12 22 32 06 16 26 36
// c1.val[0]: 01 11 21 31 05 15 25 35
// c1.val[1]: 03 13 23 33 07 17 27 37
// c2.val[0]: 40 50 60 70 44 54 64 74
// c2.val[1]: 42 52 62 72 46 56 66 76
// c3.val[0]: 41 51 61 71 45 55 65 75
// c3.val[1]: 43 53 63 73 47 57 67 77
const int32x4x2_t c0 = vtrnq_s32(vreinterpretq_s32_s16(b0.val[0]),
vreinterpretq_s32_s16(b1.val[0]));
const int32x4x2_t c1 = vtrnq_s32(vreinterpretq_s32_s16(b0.val[1]),
vreinterpretq_s32_s16(b1.val[1]));
const int32x4x2_t c2 = vtrnq_s32(vreinterpretq_s32_s16(b2.val[0]),
vreinterpretq_s32_s16(b3.val[0]));
const int32x4x2_t c3 = vtrnq_s32(vreinterpretq_s32_s16(b2.val[1]),
vreinterpretq_s32_s16(b3.val[1]));
*a0 = vcombine_s16(vget_low_s16(vreinterpretq_s16_s32(c0.val[0])),
vget_low_s16(vreinterpretq_s16_s32(c2.val[0])));
*a4 = vcombine_s16(vget_high_s16(vreinterpretq_s16_s32(c0.val[0])),
vget_high_s16(vreinterpretq_s16_s32(c2.val[0])));
*a2 = vcombine_s16(vget_low_s16(vreinterpretq_s16_s32(c0.val[1])),
vget_low_s16(vreinterpretq_s16_s32(c2.val[1])));
*a6 = vcombine_s16(vget_high_s16(vreinterpretq_s16_s32(c0.val[1])),
vget_high_s16(vreinterpretq_s16_s32(c2.val[1])));
*a1 = vcombine_s16(vget_low_s16(vreinterpretq_s16_s32(c1.val[0])),
vget_low_s16(vreinterpretq_s16_s32(c3.val[0])));
*a5 = vcombine_s16(vget_high_s16(vreinterpretq_s16_s32(c1.val[0])),
vget_high_s16(vreinterpretq_s16_s32(c3.val[0])));
*a3 = vcombine_s16(vget_low_s16(vreinterpretq_s16_s32(c1.val[1])),
vget_low_s16(vreinterpretq_s16_s32(c3.val[1])));
*a7 = vcombine_s16(vget_high_s16(vreinterpretq_s16_s32(c1.val[1])),
vget_high_s16(vreinterpretq_s16_s32(c3.val[1])));
}
static INLINE int16x8x2_t vpx_vtrnq_s64_to_s16(int32x4_t a0, int32x4_t a1) {
int16x8x2_t b0;
b0.val[0] = vcombine_s16(vreinterpret_s16_s32(vget_low_s32(a0)),
vreinterpret_s16_s32(vget_low_s32(a1)));
b0.val[1] = vcombine_s16(vreinterpret_s16_s32(vget_high_s32(a0)),
vreinterpret_s16_s32(vget_high_s32(a1)));
return b0;
}
static INLINE void transpose_s16_8x8q(int16x8_t *a0, int16x8_t *out) {
// Swap 16 bit elements. Goes from:
// a0: 00 01 02 03 04 05 06 07
// a1: 10 11 12 13 14 15 16 17
// a2: 20 21 22 23 24 25 26 27
// a3: 30 31 32 33 34 35 36 37
// a4: 40 41 42 43 44 45 46 47
// a5: 50 51 52 53 54 55 56 57
// a6: 60 61 62 63 64 65 66 67
// a7: 70 71 72 73 74 75 76 77
// to:
// b0.val[0]: 00 10 02 12 04 14 06 16
// b0.val[1]: 01 11 03 13 05 15 07 17
// b1.val[0]: 20 30 22 32 24 34 26 36
// b1.val[1]: 21 31 23 33 25 35 27 37
// b2.val[0]: 40 50 42 52 44 54 46 56
// b2.val[1]: 41 51 43 53 45 55 47 57
// b3.val[0]: 60 70 62 72 64 74 66 76
// b3.val[1]: 61 71 63 73 65 75 67 77
const int16x8x2_t b0 = vtrnq_s16(*a0, *(a0 + 1));
const int16x8x2_t b1 = vtrnq_s16(*(a0 + 2), *(a0 + 3));
const int16x8x2_t b2 = vtrnq_s16(*(a0 + 4), *(a0 + 5));
const int16x8x2_t b3 = vtrnq_s16(*(a0 + 6), *(a0 + 7));
// Swap 32 bit elements resulting in:
// c0.val[0]: 00 10 20 30 04 14 24 34
// c0.val[1]: 02 12 22 32 06 16 26 36
// c1.val[0]: 01 11 21 31 05 15 25 35
// c1.val[1]: 03 13 23 33 07 17 27 37
// c2.val[0]: 40 50 60 70 44 54 64 74
// c2.val[1]: 42 52 62 72 46 56 66 76
// c3.val[0]: 41 51 61 71 45 55 65 75
// c3.val[1]: 43 53 63 73 47 57 67 77
const int32x4x2_t c0 = vtrnq_s32(vreinterpretq_s32_s16(b0.val[0]),
vreinterpretq_s32_s16(b1.val[0]));
const int32x4x2_t c1 = vtrnq_s32(vreinterpretq_s32_s16(b0.val[1]),
vreinterpretq_s32_s16(b1.val[1]));
const int32x4x2_t c2 = vtrnq_s32(vreinterpretq_s32_s16(b2.val[0]),
vreinterpretq_s32_s16(b3.val[0]));
const int32x4x2_t c3 = vtrnq_s32(vreinterpretq_s32_s16(b2.val[1]),
vreinterpretq_s32_s16(b3.val[1]));
// Swap 64 bit elements resulting in:
// d0.val[0]: 00 10 20 30 40 50 60 70
// d0.val[1]: 04 14 24 34 44 54 64 74
// d1.val[0]: 01 11 21 31 41 51 61 71
// d1.val[1]: 05 15 25 35 45 55 65 75
// d2.val[0]: 02 12 22 32 42 52 62 72
// d2.val[1]: 06 16 26 36 46 56 66 76
// d3.val[0]: 03 13 23 33 43 53 63 73
// d3.val[1]: 07 17 27 37 47 57 67 77
const int16x8x2_t d0 = vpx_vtrnq_s64_to_s16(c0.val[0], c2.val[0]);
const int16x8x2_t d1 = vpx_vtrnq_s64_to_s16(c1.val[0], c3.val[0]);
const int16x8x2_t d2 = vpx_vtrnq_s64_to_s16(c0.val[1], c2.val[1]);
const int16x8x2_t d3 = vpx_vtrnq_s64_to_s16(c1.val[1], c3.val[1]);
*out = d0.val[0];
*(out + 1) = d1.val[0];
*(out + 2) = d2.val[0];
*(out + 3) = d3.val[0];
*(out + 4) = d0.val[1];
*(out + 5) = d1.val[1];
*(out + 6) = d2.val[1];
*(out + 7) = d3.val[1];
}
static INLINE void transpose_s16_4x4d(int16x4_t *a0, int16x4_t *a1,
int16x4_t *a2, int16x4_t *a3) {
// Swap 16 bit elements. Goes from:
// a0: 00 01 02 03
// a1: 10 11 12 13
// a2: 20 21 22 23
// a3: 30 31 32 33
// to:
// b0.val[0]: 00 10 02 12
// b0.val[1]: 01 11 03 13
// b1.val[0]: 20 30 22 32
// b1.val[1]: 21 31 23 33
const int16x4x2_t b0 = vtrn_s16(*a0, *a1);
const int16x4x2_t b1 = vtrn_s16(*a2, *a3);
// Swap 32 bit elements resulting in:
// c0.val[0]: 00 10 20 30
// c0.val[1]: 02 12 22 32
// c1.val[0]: 01 11 21 31
// c1.val[1]: 03 13 23 33
const int32x2x2_t c0 = vtrn_s32(vreinterpret_s32_s16(b0.val[0]),
vreinterpret_s32_s16(b1.val[0]));
const int32x2x2_t c1 = vtrn_s32(vreinterpret_s32_s16(b0.val[1]),
vreinterpret_s32_s16(b1.val[1]));
*a0 = vreinterpret_s16_s32(c0.val[0]);
*a1 = vreinterpret_s16_s32(c1.val[0]);
*a2 = vreinterpret_s16_s32(c0.val[1]);
*a3 = vreinterpret_s16_s32(c1.val[1]);
}
static INLINE int32x4x2_t aom_vtrnq_s64_to_s32(int32x4_t a0, int32x4_t a1) {
int32x4x2_t b0;
b0.val[0] = vcombine_s32(vget_low_s32(a0), vget_low_s32(a1));
b0.val[1] = vcombine_s32(vget_high_s32(a0), vget_high_s32(a1));
return b0;
}
static INLINE void transpose_s32_4x4(int32x4_t *a0, int32x4_t *a1,
int32x4_t *a2, int32x4_t *a3) {
// Swap 32 bit elements. Goes from:
// a0: 00 01 02 03
// a1: 10 11 12 13
// a2: 20 21 22 23
// a3: 30 31 32 33
// to:
// b0.val[0]: 00 10 02 12
// b0.val[1]: 01 11 03 13
// b1.val[0]: 20 30 22 32
// b1.val[1]: 21 31 23 33
const int32x4x2_t b0 = vtrnq_s32(*a0, *a1);
const int32x4x2_t b1 = vtrnq_s32(*a2, *a3);
// Swap 64 bit elements resulting in:
// c0.val[0]: 00 10 20 30
// c0.val[1]: 02 12 22 32
// c1.val[0]: 01 11 21 31
// c1.val[1]: 03 13 23 33
const int32x4x2_t c0 = aom_vtrnq_s64_to_s32(b0.val[0], b1.val[0]);
const int32x4x2_t c1 = aom_vtrnq_s64_to_s32(b0.val[1], b1.val[1]);
*a0 = c0.val[0];
*a1 = c1.val[0];
*a2 = c0.val[1];
*a3 = c1.val[1];
}
#endif // AOM_AV1_COMMON_ARM_TRANSPOSE_NEON_H_
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