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Diffstat (limited to '')
| -rw-r--r-- | third_party/aom/aom_dsp/arm/transpose_neon.h | 1263 |
1 files changed, 1263 insertions, 0 deletions
diff --git a/third_party/aom/aom_dsp/arm/transpose_neon.h b/third_party/aom/aom_dsp/arm/transpose_neon.h new file mode 100644 index 0000000000..8027018235 --- /dev/null +++ b/third_party/aom/aom_dsp/arm/transpose_neon.h @@ -0,0 +1,1263 @@ +/* + * 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_AOM_DSP_ARM_TRANSPOSE_NEON_H_ +#define AOM_AOM_DSP_ARM_TRANSPOSE_NEON_H_ + +#include <arm_neon.h> + +#include "aom/aom_integer.h" // For AOM_FORCE_INLINE. +#include "config/aom_config.h" + +static INLINE void transpose_elems_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, uint8x8_t *o0, uint8x8_t *o1, + uint8x8_t *o2, uint8x8_t *o3, uint8x8_t *o4, uint8x8_t *o5, uint8x8_t *o6, + uint8x8_t *o7) { + // 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])); + + *o0 = vreinterpret_u8_u32(vget_low_u32(d0.val[0])); + *o1 = vreinterpret_u8_u32(vget_high_u32(d0.val[0])); + *o2 = vreinterpret_u8_u32(vget_low_u32(d1.val[0])); + *o3 = vreinterpret_u8_u32(vget_high_u32(d1.val[0])); + *o4 = vreinterpret_u8_u32(vget_low_u32(d0.val[1])); + *o5 = vreinterpret_u8_u32(vget_high_u32(d0.val[1])); + *o6 = vreinterpret_u8_u32(vget_low_u32(d1.val[1])); + *o7 = vreinterpret_u8_u32(vget_high_u32(d1.val[1])); +} + +static INLINE void transpose_elems_inplace_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) { + transpose_elems_u8_8x8(*a0, *a1, *a2, *a3, *a4, *a5, *a6, *a7, a0, a1, a2, a3, + a4, a5, a6, a7); +} + +static INLINE void transpose_arrays_u8_8x8(const uint8x8_t *in, + uint8x8_t *out) { + transpose_elems_u8_8x8(in[0], in[1], in[2], in[3], in[4], in[5], in[6], in[7], + &out[0], &out[1], &out[2], &out[3], &out[4], &out[5], + &out[6], &out[7]); +} + +static AOM_FORCE_INLINE void transpose_arrays_u8_8x16(const uint8x8_t *x, + uint8x16_t *d) { + uint8x8x2_t w0 = vzip_u8(x[0], x[1]); + uint8x8x2_t w1 = vzip_u8(x[2], x[3]); + uint8x8x2_t w2 = vzip_u8(x[4], x[5]); + uint8x8x2_t w3 = vzip_u8(x[6], x[7]); + + uint8x8x2_t w8 = vzip_u8(x[8], x[9]); + uint8x8x2_t w9 = vzip_u8(x[10], x[11]); + uint8x8x2_t w10 = vzip_u8(x[12], x[13]); + uint8x8x2_t w11 = vzip_u8(x[14], x[15]); + + uint16x4x2_t w4 = + vzip_u16(vreinterpret_u16_u8(w0.val[0]), vreinterpret_u16_u8(w1.val[0])); + uint16x4x2_t w5 = + vzip_u16(vreinterpret_u16_u8(w2.val[0]), vreinterpret_u16_u8(w3.val[0])); + uint16x4x2_t w12 = + vzip_u16(vreinterpret_u16_u8(w8.val[0]), vreinterpret_u16_u8(w9.val[0])); + uint16x4x2_t w13 = vzip_u16(vreinterpret_u16_u8(w10.val[0]), + vreinterpret_u16_u8(w11.val[0])); + + uint32x2x2_t w6 = vzip_u32(vreinterpret_u32_u16(w4.val[0]), + vreinterpret_u32_u16(w5.val[0])); + uint32x2x2_t w7 = vzip_u32(vreinterpret_u32_u16(w4.val[1]), + vreinterpret_u32_u16(w5.val[1])); + uint32x2x2_t w14 = vzip_u32(vreinterpret_u32_u16(w12.val[0]), + vreinterpret_u32_u16(w13.val[0])); + uint32x2x2_t w15 = vzip_u32(vreinterpret_u32_u16(w12.val[1]), + vreinterpret_u32_u16(w13.val[1])); + + // Store first 4-line result + d[0] = vreinterpretq_u8_u32(vcombine_u32(w6.val[0], w14.val[0])); + d[1] = vreinterpretq_u8_u32(vcombine_u32(w6.val[1], w14.val[1])); + d[2] = vreinterpretq_u8_u32(vcombine_u32(w7.val[0], w15.val[0])); + d[3] = vreinterpretq_u8_u32(vcombine_u32(w7.val[1], w15.val[1])); + + w4 = vzip_u16(vreinterpret_u16_u8(w0.val[1]), vreinterpret_u16_u8(w1.val[1])); + w5 = vzip_u16(vreinterpret_u16_u8(w2.val[1]), vreinterpret_u16_u8(w3.val[1])); + w12 = + vzip_u16(vreinterpret_u16_u8(w8.val[1]), vreinterpret_u16_u8(w9.val[1])); + w13 = vzip_u16(vreinterpret_u16_u8(w10.val[1]), + vreinterpret_u16_u8(w11.val[1])); + + w6 = vzip_u32(vreinterpret_u32_u16(w4.val[0]), + vreinterpret_u32_u16(w5.val[0])); + w7 = vzip_u32(vreinterpret_u32_u16(w4.val[1]), + vreinterpret_u32_u16(w5.val[1])); + w14 = vzip_u32(vreinterpret_u32_u16(w12.val[0]), + vreinterpret_u32_u16(w13.val[0])); + w15 = vzip_u32(vreinterpret_u32_u16(w12.val[1]), + vreinterpret_u32_u16(w13.val[1])); + + // Store second 4-line result + d[4] = vreinterpretq_u8_u32(vcombine_u32(w6.val[0], w14.val[0])); + d[5] = vreinterpretq_u8_u32(vcombine_u32(w6.val[1], w14.val[1])); + d[6] = vreinterpretq_u8_u32(vcombine_u32(w7.val[0], w15.val[0])); + d[7] = vreinterpretq_u8_u32(vcombine_u32(w7.val[1], w15.val[1])); +} + +static AOM_FORCE_INLINE void transpose_arrays_u8_16x8(const uint8x16_t *x, + uint8x8_t *d) { + uint8x16x2_t w0 = vzipq_u8(x[0], x[1]); + uint8x16x2_t w1 = vzipq_u8(x[2], x[3]); + uint8x16x2_t w2 = vzipq_u8(x[4], x[5]); + uint8x16x2_t w3 = vzipq_u8(x[6], x[7]); + + uint16x8x2_t w4 = vzipq_u16(vreinterpretq_u16_u8(w0.val[0]), + vreinterpretq_u16_u8(w1.val[0])); + uint16x8x2_t w5 = vzipq_u16(vreinterpretq_u16_u8(w2.val[0]), + vreinterpretq_u16_u8(w3.val[0])); + uint16x8x2_t w6 = vzipq_u16(vreinterpretq_u16_u8(w0.val[1]), + vreinterpretq_u16_u8(w1.val[1])); + uint16x8x2_t w7 = vzipq_u16(vreinterpretq_u16_u8(w2.val[1]), + vreinterpretq_u16_u8(w3.val[1])); + + uint32x4x2_t w8 = vzipq_u32(vreinterpretq_u32_u16(w4.val[0]), + vreinterpretq_u32_u16(w5.val[0])); + uint32x4x2_t w9 = vzipq_u32(vreinterpretq_u32_u16(w6.val[0]), + vreinterpretq_u32_u16(w7.val[0])); + uint32x4x2_t w10 = vzipq_u32(vreinterpretq_u32_u16(w4.val[1]), + vreinterpretq_u32_u16(w5.val[1])); + uint32x4x2_t w11 = vzipq_u32(vreinterpretq_u32_u16(w6.val[1]), + vreinterpretq_u32_u16(w7.val[1])); + + d[0] = vreinterpret_u8_u32(vget_low_u32(w8.val[0])); + d[1] = vreinterpret_u8_u32(vget_high_u32(w8.val[0])); + d[2] = vreinterpret_u8_u32(vget_low_u32(w8.val[1])); + d[3] = vreinterpret_u8_u32(vget_high_u32(w8.val[1])); + d[4] = vreinterpret_u8_u32(vget_low_u32(w10.val[0])); + d[5] = vreinterpret_u8_u32(vget_high_u32(w10.val[0])); + d[6] = vreinterpret_u8_u32(vget_low_u32(w10.val[1])); + d[7] = vreinterpret_u8_u32(vget_high_u32(w10.val[1])); + d[8] = vreinterpret_u8_u32(vget_low_u32(w9.val[0])); + d[9] = vreinterpret_u8_u32(vget_high_u32(w9.val[0])); + d[10] = vreinterpret_u8_u32(vget_low_u32(w9.val[1])); + d[11] = vreinterpret_u8_u32(vget_high_u32(w9.val[1])); + d[12] = vreinterpret_u8_u32(vget_low_u32(w11.val[0])); + d[13] = vreinterpret_u8_u32(vget_high_u32(w11.val[0])); + d[14] = vreinterpret_u8_u32(vget_low_u32(w11.val[1])); + d[15] = vreinterpret_u8_u32(vget_high_u32(w11.val[1])); +} + +static INLINE uint16x8x2_t aom_vtrnq_u64_to_u16(uint32x4_t a0, uint32x4_t a1) { + uint16x8x2_t b0; +#if AOM_ARCH_AARCH64 + b0.val[0] = vreinterpretq_u16_u64( + vtrn1q_u64(vreinterpretq_u64_u32(a0), vreinterpretq_u64_u32(a1))); + b0.val[1] = vreinterpretq_u16_u64( + vtrn2q_u64(vreinterpretq_u64_u32(a0), vreinterpretq_u64_u32(a1))); +#else + b0.val[0] = vcombine_u16(vreinterpret_u16_u32(vget_low_u32(a0)), + vreinterpret_u16_u32(vget_low_u32(a1))); + b0.val[1] = vcombine_u16(vreinterpret_u16_u32(vget_high_u32(a0)), + vreinterpret_u16_u32(vget_high_u32(a1))); +#endif + return b0; +} + +static INLINE void transpose_arrays_u8_16x16(const uint8x16_t *x, + uint8x16_t *d) { + uint8x16x2_t w0 = vzipq_u8(x[0], x[1]); + uint8x16x2_t w1 = vzipq_u8(x[2], x[3]); + uint8x16x2_t w2 = vzipq_u8(x[4], x[5]); + uint8x16x2_t w3 = vzipq_u8(x[6], x[7]); + + uint8x16x2_t w4 = vzipq_u8(x[8], x[9]); + uint8x16x2_t w5 = vzipq_u8(x[10], x[11]); + uint8x16x2_t w6 = vzipq_u8(x[12], x[13]); + uint8x16x2_t w7 = vzipq_u8(x[14], x[15]); + + uint16x8x2_t w8 = vzipq_u16(vreinterpretq_u16_u8(w0.val[0]), + vreinterpretq_u16_u8(w1.val[0])); + uint16x8x2_t w9 = vzipq_u16(vreinterpretq_u16_u8(w2.val[0]), + vreinterpretq_u16_u8(w3.val[0])); + uint16x8x2_t w10 = vzipq_u16(vreinterpretq_u16_u8(w4.val[0]), + vreinterpretq_u16_u8(w5.val[0])); + uint16x8x2_t w11 = vzipq_u16(vreinterpretq_u16_u8(w6.val[0]), + vreinterpretq_u16_u8(w7.val[0])); + + uint32x4x2_t w12 = vzipq_u32(vreinterpretq_u32_u16(w8.val[0]), + vreinterpretq_u32_u16(w9.val[0])); + uint32x4x2_t w13 = vzipq_u32(vreinterpretq_u32_u16(w10.val[0]), + vreinterpretq_u32_u16(w11.val[0])); + uint32x4x2_t w14 = vzipq_u32(vreinterpretq_u32_u16(w8.val[1]), + vreinterpretq_u32_u16(w9.val[1])); + uint32x4x2_t w15 = vzipq_u32(vreinterpretq_u32_u16(w10.val[1]), + vreinterpretq_u32_u16(w11.val[1])); + + uint16x8x2_t d01 = aom_vtrnq_u64_to_u16(w12.val[0], w13.val[0]); + d[0] = vreinterpretq_u8_u16(d01.val[0]); + d[1] = vreinterpretq_u8_u16(d01.val[1]); + uint16x8x2_t d23 = aom_vtrnq_u64_to_u16(w12.val[1], w13.val[1]); + d[2] = vreinterpretq_u8_u16(d23.val[0]); + d[3] = vreinterpretq_u8_u16(d23.val[1]); + uint16x8x2_t d45 = aom_vtrnq_u64_to_u16(w14.val[0], w15.val[0]); + d[4] = vreinterpretq_u8_u16(d45.val[0]); + d[5] = vreinterpretq_u8_u16(d45.val[1]); + uint16x8x2_t d67 = aom_vtrnq_u64_to_u16(w14.val[1], w15.val[1]); + d[6] = vreinterpretq_u8_u16(d67.val[0]); + d[7] = vreinterpretq_u8_u16(d67.val[1]); + + // upper half + w8 = vzipq_u16(vreinterpretq_u16_u8(w0.val[1]), + vreinterpretq_u16_u8(w1.val[1])); + w9 = vzipq_u16(vreinterpretq_u16_u8(w2.val[1]), + vreinterpretq_u16_u8(w3.val[1])); + w10 = vzipq_u16(vreinterpretq_u16_u8(w4.val[1]), + vreinterpretq_u16_u8(w5.val[1])); + w11 = vzipq_u16(vreinterpretq_u16_u8(w6.val[1]), + vreinterpretq_u16_u8(w7.val[1])); + + w12 = vzipq_u32(vreinterpretq_u32_u16(w8.val[0]), + vreinterpretq_u32_u16(w9.val[0])); + w13 = vzipq_u32(vreinterpretq_u32_u16(w10.val[0]), + vreinterpretq_u32_u16(w11.val[0])); + w14 = vzipq_u32(vreinterpretq_u32_u16(w8.val[1]), + vreinterpretq_u32_u16(w9.val[1])); + w15 = vzipq_u32(vreinterpretq_u32_u16(w10.val[1]), + vreinterpretq_u32_u16(w11.val[1])); + + d01 = aom_vtrnq_u64_to_u16(w12.val[0], w13.val[0]); + d[8] = vreinterpretq_u8_u16(d01.val[0]); + d[9] = vreinterpretq_u8_u16(d01.val[1]); + d23 = aom_vtrnq_u64_to_u16(w12.val[1], w13.val[1]); + d[10] = vreinterpretq_u8_u16(d23.val[0]); + d[11] = vreinterpretq_u8_u16(d23.val[1]); + d45 = aom_vtrnq_u64_to_u16(w14.val[0], w15.val[0]); + d[12] = vreinterpretq_u8_u16(d45.val[0]); + d[13] = vreinterpretq_u8_u16(d45.val[1]); + d67 = aom_vtrnq_u64_to_u16(w14.val[1], w15.val[1]); + d[14] = vreinterpretq_u8_u16(d67.val[0]); + d[15] = vreinterpretq_u8_u16(d67.val[1]); +} + +static AOM_FORCE_INLINE void transpose_arrays_u8_32x16(const uint8x16x2_t *x, + uint8x16_t *d) { + uint8x16_t x2[32]; + for (int i = 0; i < 16; ++i) { + x2[i] = x[i].val[0]; + x2[i + 16] = x[i].val[1]; + } + transpose_arrays_u8_16x16(x2, d); + transpose_arrays_u8_16x16(x2 + 16, d + 16); +} + +static INLINE void transpose_elems_inplace_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_elems_inplace_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_elems_u8_4x8(uint8x8_t a0, uint8x8_t a1, + uint8x8_t a2, uint8x8_t a3, + uint8x8_t a4, uint8x8_t a5, + uint8x8_t a6, uint8x8_t a7, + uint8x8_t *o0, uint8x8_t *o1, + uint8x8_t *o2, uint8x8_t *o3) { + // 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])); + + *o0 = d0.val[0]; + *o1 = d0.val[1]; + *o2 = d1.val[0]; + *o3 = d1.val[1]; +} + +static INLINE void transpose_array_inplace_u16_4x4(uint16x4_t a[4]) { + // Input: + // 00 01 02 03 + // 10 11 12 13 + // 20 21 22 23 + // 30 31 32 33 + + // b: + // 00 10 02 12 + // 01 11 03 13 + const uint16x4x2_t b = vtrn_u16(a[0], a[1]); + // c: + // 20 30 22 32 + // 21 31 23 33 + const uint16x4x2_t c = vtrn_u16(a[2], a[3]); + // d: + // 00 10 20 30 + // 02 12 22 32 + const uint32x2x2_t d = + vtrn_u32(vreinterpret_u32_u16(b.val[0]), vreinterpret_u32_u16(c.val[0])); + // e: + // 01 11 21 31 + // 03 13 23 33 + const uint32x2x2_t e = + vtrn_u32(vreinterpret_u32_u16(b.val[1]), vreinterpret_u32_u16(c.val[1])); + + // Output: + // 00 10 20 30 + // 01 11 21 31 + // 02 12 22 32 + // 03 13 23 33 + a[0] = vreinterpret_u16_u32(d.val[0]); + a[1] = vreinterpret_u16_u32(e.val[0]); + a[2] = vreinterpret_u16_u32(d.val[1]); + a[3] = vreinterpret_u16_u32(e.val[1]); +} + +static INLINE void transpose_array_inplace_u16_4x8(uint16x8_t a[4]) { + // 4x8 Input: + // a[0]: 00 01 02 03 04 05 06 07 + // a[1]: 10 11 12 13 14 15 16 17 + // a[2]: 20 21 22 23 24 25 26 27 + // a[3]: 30 31 32 33 34 35 36 37 + + // 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 uint16x8x2_t b0 = vtrnq_u16(a[0], a[1]); + const uint16x8x2_t b1 = vtrnq_u16(a[2], a[3]); + + // 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 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])); + + // 8x4 Output: + // a[0]: 00 10 20 30 04 14 24 34 + // a[1]: 01 11 21 31 05 15 25 35 + // a[2]: 02 12 22 32 06 16 26 36 + // a[3]: 03 13 23 33 07 17 27 37 + a[0] = vreinterpretq_u16_u32(c0.val[0]); + a[1] = vreinterpretq_u16_u32(c1.val[0]); + a[2] = vreinterpretq_u16_u32(c0.val[1]); + a[3] = vreinterpretq_u16_u32(c1.val[1]); +} + +// Special transpose for loop filter. +// 4x8 Input: +// p_q: p3 p2 p1 p0 q0 q1 q2 q3 +// a[0]: 00 01 02 03 04 05 06 07 +// a[1]: 10 11 12 13 14 15 16 17 +// a[2]: 20 21 22 23 24 25 26 27 +// a[3]: 30 31 32 33 34 35 36 37 +// 8x4 Output: +// a[0]: 03 13 23 33 04 14 24 34 p0q0 +// a[1]: 02 12 22 32 05 15 25 35 p1q1 +// a[2]: 01 11 21 31 06 16 26 36 p2q2 +// a[3]: 00 10 20 30 07 17 27 37 p3q3 +// Direct reapplication of the function will reset the high halves, but +// reverse the low halves: +// p_q: p0 p1 p2 p3 q0 q1 q2 q3 +// a[0]: 33 32 31 30 04 05 06 07 +// a[1]: 23 22 21 20 14 15 16 17 +// a[2]: 13 12 11 10 24 25 26 27 +// a[3]: 03 02 01 00 34 35 36 37 +// Simply reordering the inputs (3, 2, 1, 0) will reset the low halves, but +// reverse the high halves. +// The standard transpose_u16_4x8q will produce the same reversals, but with the +// order of the low halves also restored relative to the high halves. This is +// preferable because it puts all values from the same source row back together, +// but some post-processing is inevitable. +static INLINE void loop_filter_transpose_u16_4x8q(uint16x8_t a[4]) { + // 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 uint16x8x2_t b0 = vtrnq_u16(a[0], a[1]); + const uint16x8x2_t b1 = vtrnq_u16(a[2], a[3]); + + // Reverse odd vectors to bring the appropriate items to the front of zips. + // b0.val[0]: 00 10 02 12 04 14 06 16 + // r0 : 03 13 01 11 07 17 05 15 + // b1.val[0]: 20 30 22 32 24 34 26 36 + // r1 : 23 33 21 31 27 37 25 35 + const uint32x4_t r0 = vrev64q_u32(vreinterpretq_u32_u16(b0.val[1])); + const uint32x4_t r1 = vrev64q_u32(vreinterpretq_u32_u16(b1.val[1])); + + // Zip to complete the halves. + // c0.val[0]: 00 10 20 30 02 12 22 32 p3p1 + // c0.val[1]: 04 14 24 34 06 16 26 36 q0q2 + // c1.val[0]: 03 13 23 33 01 11 21 31 p0p2 + // c1.val[1]: 07 17 27 37 05 15 25 35 q3q1 + const uint32x4x2_t c0 = vzipq_u32(vreinterpretq_u32_u16(b0.val[0]), + vreinterpretq_u32_u16(b1.val[0])); + const uint32x4x2_t c1 = vzipq_u32(r0, r1); + + // d0.val[0]: 00 10 20 30 07 17 27 37 p3q3 + // d0.val[1]: 02 12 22 32 05 15 25 35 p1q1 + // d1.val[0]: 03 13 23 33 04 14 24 34 p0q0 + // d1.val[1]: 01 11 21 31 06 16 26 36 p2q2 + const uint16x8x2_t d0 = aom_vtrnq_u64_to_u16(c0.val[0], c1.val[1]); + // The third row of c comes first here to swap p2 with q0. + const uint16x8x2_t d1 = aom_vtrnq_u64_to_u16(c1.val[0], c0.val[1]); + + // 8x4 Output: + // a[0]: 03 13 23 33 04 14 24 34 p0q0 + // a[1]: 02 12 22 32 05 15 25 35 p1q1 + // a[2]: 01 11 21 31 06 16 26 36 p2q2 + // a[3]: 00 10 20 30 07 17 27 37 p3q3 + a[0] = d1.val[0]; // p0q0 + a[1] = d0.val[1]; // p1q1 + a[2] = d1.val[1]; // p2q2 + a[3] = d0.val[0]; // p3q3 +} + +static INLINE void transpose_elems_u16_4x8( + const uint16x4_t a0, const uint16x4_t a1, const uint16x4_t a2, + const uint16x4_t a3, const uint16x4_t a4, const uint16x4_t a5, + const uint16x4_t a6, const uint16x4_t a7, uint16x8_t *o0, uint16x8_t *o1, + uint16x8_t *o2, uint16x8_t *o3) { + // Combine rows. 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: 00 01 02 03 40 41 42 43 + // b1: 10 11 12 13 50 51 52 53 + // b2: 20 21 22 23 60 61 62 63 + // b3: 30 31 32 33 70 71 72 73 + + const uint16x8_t b0 = vcombine_u16(a0, a4); + const uint16x8_t b1 = vcombine_u16(a1, a5); + const uint16x8_t b2 = vcombine_u16(a2, a6); + const uint16x8_t b3 = vcombine_u16(a3, a7); + + // Swap 16 bit elements resulting in: + // c0.val[0]: 00 10 02 12 40 50 42 52 + // c0.val[1]: 01 11 03 13 41 51 43 53 + // c1.val[0]: 20 30 22 32 60 70 62 72 + // c1.val[1]: 21 31 23 33 61 71 63 73 + + const uint16x8x2_t c0 = vtrnq_u16(b0, b1); + const uint16x8x2_t c1 = vtrnq_u16(b2, b3); + + // Swap 32 bit elements resulting in: + // d0.val[0]: 00 10 20 30 40 50 60 70 + // d0.val[1]: 02 12 22 32 42 52 62 72 + // d1.val[0]: 01 11 21 31 41 51 61 71 + // d1.val[1]: 03 13 23 33 43 53 63 73 + + const uint32x4x2_t d0 = vtrnq_u32(vreinterpretq_u32_u16(c0.val[0]), + vreinterpretq_u32_u16(c1.val[0])); + const uint32x4x2_t d1 = vtrnq_u32(vreinterpretq_u32_u16(c0.val[1]), + vreinterpretq_u32_u16(c1.val[1])); + + *o0 = vreinterpretq_u16_u32(d0.val[0]); + *o1 = vreinterpretq_u16_u32(d1.val[0]); + *o2 = vreinterpretq_u16_u32(d0.val[1]); + *o3 = vreinterpretq_u16_u32(d1.val[1]); +} + +static INLINE void transpose_elems_s16_4x8( + const int16x4_t a0, const int16x4_t a1, const int16x4_t a2, + const int16x4_t a3, const int16x4_t a4, const int16x4_t a5, + const int16x4_t a6, const int16x4_t a7, int16x8_t *o0, int16x8_t *o1, + int16x8_t *o2, int16x8_t *o3) { + // Combine rows. 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: 00 01 02 03 40 41 42 43 + // b1: 10 11 12 13 50 51 52 53 + // b2: 20 21 22 23 60 61 62 63 + // b3: 30 31 32 33 70 71 72 73 + + const int16x8_t b0 = vcombine_s16(a0, a4); + const int16x8_t b1 = vcombine_s16(a1, a5); + const int16x8_t b2 = vcombine_s16(a2, a6); + const int16x8_t b3 = vcombine_s16(a3, a7); + + // Swap 16 bit elements resulting in: + // c0.val[0]: 00 10 02 12 40 50 42 52 + // c0.val[1]: 01 11 03 13 41 51 43 53 + // c1.val[0]: 20 30 22 32 60 70 62 72 + // c1.val[1]: 21 31 23 33 61 71 63 73 + + const int16x8x2_t c0 = vtrnq_s16(b0, b1); + const int16x8x2_t c1 = vtrnq_s16(b2, b3); + + // Swap 32 bit elements resulting in: + // d0.val[0]: 00 10 20 30 40 50 60 70 + // d0.val[1]: 02 12 22 32 42 52 62 72 + // d1.val[0]: 01 11 21 31 41 51 61 71 + // d1.val[1]: 03 13 23 33 43 53 63 73 + + const int32x4x2_t d0 = vtrnq_s32(vreinterpretq_s32_s16(c0.val[0]), + vreinterpretq_s32_s16(c1.val[0])); + const int32x4x2_t d1 = vtrnq_s32(vreinterpretq_s32_s16(c0.val[1]), + vreinterpretq_s32_s16(c1.val[1])); + + *o0 = vreinterpretq_s16_s32(d0.val[0]); + *o1 = vreinterpretq_s16_s32(d1.val[0]); + *o2 = vreinterpretq_s16_s32(d0.val[1]); + *o3 = vreinterpretq_s16_s32(d1.val[1]); +} + +static INLINE void transpose_elems_inplace_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])); + + // 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 uint16x8x2_t d0 = aom_vtrnq_u64_to_u16(c0.val[0], c2.val[0]); + const uint16x8x2_t d1 = aom_vtrnq_u64_to_u16(c1.val[0], c3.val[0]); + const uint16x8x2_t d2 = aom_vtrnq_u64_to_u16(c0.val[1], c2.val[1]); + const uint16x8x2_t d3 = aom_vtrnq_u64_to_u16(c1.val[1], c3.val[1]); + + *a0 = d0.val[0]; + *a1 = d1.val[0]; + *a2 = d2.val[0]; + *a3 = d3.val[0]; + *a4 = d0.val[1]; + *a5 = d1.val[1]; + *a6 = d2.val[1]; + *a7 = d3.val[1]; +} + +static INLINE int16x8x2_t aom_vtrnq_s64_to_s16(int32x4_t a0, int32x4_t a1) { + int16x8x2_t b0; +#if AOM_ARCH_AARCH64 + b0.val[0] = vreinterpretq_s16_s64( + vtrn1q_s64(vreinterpretq_s64_s32(a0), vreinterpretq_s64_s32(a1))); + b0.val[1] = vreinterpretq_s16_s64( + vtrn2q_s64(vreinterpretq_s64_s32(a0), vreinterpretq_s64_s32(a1))); +#else + 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))); +#endif + return b0; +} + +static INLINE void transpose_elems_inplace_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])); + + // 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 = aom_vtrnq_s64_to_s16(c0.val[0], c2.val[0]); + const int16x8x2_t d1 = aom_vtrnq_s64_to_s16(c1.val[0], c3.val[0]); + const int16x8x2_t d2 = aom_vtrnq_s64_to_s16(c0.val[1], c2.val[1]); + const int16x8x2_t d3 = aom_vtrnq_s64_to_s16(c1.val[1], c3.val[1]); + + *a0 = d0.val[0]; + *a1 = d1.val[0]; + *a2 = d2.val[0]; + *a3 = d3.val[0]; + *a4 = d0.val[1]; + *a5 = d1.val[1]; + *a6 = d2.val[1]; + *a7 = d3.val[1]; +} + +static INLINE void transpose_arrays_s16_8x8(const int16x8_t *a, + 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(a[0], a[1]); + const int16x8x2_t b1 = vtrnq_s16(a[2], a[3]); + const int16x8x2_t b2 = vtrnq_s16(a[4], a[5]); + const int16x8x2_t b3 = vtrnq_s16(a[6], a[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 = aom_vtrnq_s64_to_s16(c0.val[0], c2.val[0]); + const int16x8x2_t d1 = aom_vtrnq_s64_to_s16(c1.val[0], c3.val[0]); + const int16x8x2_t d2 = aom_vtrnq_s64_to_s16(c0.val[1], c2.val[1]); + const int16x8x2_t d3 = aom_vtrnq_s64_to_s16(c1.val[1], c3.val[1]); + + out[0] = 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_elems_inplace_u16_4x4(uint16x4_t *a0, + uint16x4_t *a1, + uint16x4_t *a2, + uint16x4_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 uint16x4x2_t b0 = vtrn_u16(*a0, *a1); + const uint16x4x2_t b1 = vtrn_u16(*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 uint32x2x2_t c0 = vtrn_u32(vreinterpret_u32_u16(b0.val[0]), + vreinterpret_u32_u16(b1.val[0])); + const uint32x2x2_t c1 = vtrn_u32(vreinterpret_u32_u16(b0.val[1]), + vreinterpret_u32_u16(b1.val[1])); + + *a0 = vreinterpret_u16_u32(c0.val[0]); + *a1 = vreinterpret_u16_u32(c1.val[0]); + *a2 = vreinterpret_u16_u32(c0.val[1]); + *a3 = vreinterpret_u16_u32(c1.val[1]); +} + +static INLINE void transpose_elems_inplace_s16_4x4(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; +#if AOM_ARCH_AARCH64 + b0.val[0] = vreinterpretq_s32_s64( + vtrn1q_s64(vreinterpretq_s64_s32(a0), vreinterpretq_s64_s32(a1))); + b0.val[1] = vreinterpretq_s32_s64( + vtrn2q_s64(vreinterpretq_s64_s32(a0), vreinterpretq_s64_s32(a1))); +#else + 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)); +#endif + return b0; +} + +static INLINE void transpose_elems_s32_4x4(const int32x4_t a0, + const int32x4_t a1, + const int32x4_t a2, + const int32x4_t a3, int32x4_t *o0, + int32x4_t *o1, int32x4_t *o2, + int32x4_t *o3) { + // 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]); + + *o0 = c0.val[0]; + *o1 = c1.val[0]; + *o2 = c0.val[1]; + *o3 = c1.val[1]; +} + +static INLINE void transpose_elems_inplace_s32_4x4(int32x4_t *a0, int32x4_t *a1, + int32x4_t *a2, + int32x4_t *a3) { + transpose_elems_s32_4x4(*a0, *a1, *a2, *a3, a0, a1, a2, a3); +} + +static INLINE void transpose_arrays_s32_4x4(const int32x4_t *in, + int32x4_t *out) { + transpose_elems_s32_4x4(in[0], in[1], in[2], in[3], &out[0], &out[1], &out[2], + &out[3]); +} + +static AOM_FORCE_INLINE void transpose_arrays_s32_4nx4n(const int32x4_t *in, + int32x4_t *out, + const int width, + const int height) { + const int h = height >> 2; + const int w = width >> 2; + for (int j = 0; j < w; j++) { + for (int i = 0; i < h; i++) { + transpose_arrays_s32_4x4(in + j * height + i * 4, + out + i * width + j * 4); + } + } +} + +#define TRANSPOSE_ARRAYS_S32_WXH_NEON(w, h) \ + static AOM_FORCE_INLINE void transpose_arrays_s32_##w##x##h( \ + const int32x4_t *in, int32x4_t *out) { \ + transpose_arrays_s32_4nx4n(in, out, w, h); \ + } + +TRANSPOSE_ARRAYS_S32_WXH_NEON(4, 8) +TRANSPOSE_ARRAYS_S32_WXH_NEON(4, 16) +TRANSPOSE_ARRAYS_S32_WXH_NEON(8, 4) +TRANSPOSE_ARRAYS_S32_WXH_NEON(8, 8) +TRANSPOSE_ARRAYS_S32_WXH_NEON(8, 16) +TRANSPOSE_ARRAYS_S32_WXH_NEON(8, 32) +TRANSPOSE_ARRAYS_S32_WXH_NEON(16, 8) +TRANSPOSE_ARRAYS_S32_WXH_NEON(16, 16) +TRANSPOSE_ARRAYS_S32_WXH_NEON(16, 32) +TRANSPOSE_ARRAYS_S32_WXH_NEON(16, 64) +TRANSPOSE_ARRAYS_S32_WXH_NEON(32, 8) +TRANSPOSE_ARRAYS_S32_WXH_NEON(32, 16) +TRANSPOSE_ARRAYS_S32_WXH_NEON(32, 32) +TRANSPOSE_ARRAYS_S32_WXH_NEON(32, 64) +TRANSPOSE_ARRAYS_S32_WXH_NEON(64, 16) +TRANSPOSE_ARRAYS_S32_WXH_NEON(64, 32) + +#undef TRANSPOSE_ARRAYS_S32_WXH_NEON + +static INLINE int64x2_t aom_vtrn1q_s64(int64x2_t a, int64x2_t b) { +#if AOM_ARCH_AARCH64 + return vtrn1q_s64(a, b); +#else + return vcombine_s64(vget_low_s64(a), vget_low_s64(b)); +#endif +} + +static INLINE int64x2_t aom_vtrn2q_s64(int64x2_t a, int64x2_t b) { +#if AOM_ARCH_AARCH64 + return vtrn2q_s64(a, b); +#else + return vcombine_s64(vget_high_s64(a), vget_high_s64(b)); +#endif +} + +static INLINE void transpose_elems_s32_4x8(int32x4_t a0, int32x4_t a1, + int32x4_t a2, int32x4_t a3, + int32x4_t a4, int32x4_t a5, + int32x4_t a6, int32x4_t a7, + int32x4x2_t *o0, int32x4x2_t *o1, + int32x4x2_t *o2, int32x4x2_t *o3) { + // Perform a 4 x 8 matrix transpose by building on top of the existing 4 x 4 + // matrix transpose implementation: + // [ A ]^T => [ A^T B^T ] + // [ B ] + + transpose_elems_inplace_s32_4x4(&a0, &a1, &a2, &a3); // A^T + transpose_elems_inplace_s32_4x4(&a4, &a5, &a6, &a7); // B^T + + o0->val[0] = a0; + o1->val[0] = a1; + o2->val[0] = a2; + o3->val[0] = a3; + + o0->val[1] = a4; + o1->val[1] = a5; + o2->val[1] = a6; + o3->val[1] = a7; +} + +static INLINE void transpose_elems_inplace_s32_8x8( + int32x4x2_t *a0, int32x4x2_t *a1, int32x4x2_t *a2, int32x4x2_t *a3, + int32x4x2_t *a4, int32x4x2_t *a5, int32x4x2_t *a6, int32x4x2_t *a7) { + // Perform an 8 x 8 matrix transpose by building on top of the existing 4 x 4 + // matrix transpose implementation: + // [ A B ]^T => [ A^T C^T ] + // [ C D ] [ B^T D^T ] + + int32x4_t q0_v1 = a0->val[0]; + int32x4_t q0_v2 = a1->val[0]; + int32x4_t q0_v3 = a2->val[0]; + int32x4_t q0_v4 = a3->val[0]; + + int32x4_t q1_v1 = a0->val[1]; + int32x4_t q1_v2 = a1->val[1]; + int32x4_t q1_v3 = a2->val[1]; + int32x4_t q1_v4 = a3->val[1]; + + int32x4_t q2_v1 = a4->val[0]; + int32x4_t q2_v2 = a5->val[0]; + int32x4_t q2_v3 = a6->val[0]; + int32x4_t q2_v4 = a7->val[0]; + + int32x4_t q3_v1 = a4->val[1]; + int32x4_t q3_v2 = a5->val[1]; + int32x4_t q3_v3 = a6->val[1]; + int32x4_t q3_v4 = a7->val[1]; + + transpose_elems_inplace_s32_4x4(&q0_v1, &q0_v2, &q0_v3, &q0_v4); // A^T + transpose_elems_inplace_s32_4x4(&q1_v1, &q1_v2, &q1_v3, &q1_v4); // B^T + transpose_elems_inplace_s32_4x4(&q2_v1, &q2_v2, &q2_v3, &q2_v4); // C^T + transpose_elems_inplace_s32_4x4(&q3_v1, &q3_v2, &q3_v3, &q3_v4); // D^T + + a0->val[0] = q0_v1; + a1->val[0] = q0_v2; + a2->val[0] = q0_v3; + a3->val[0] = q0_v4; + + a0->val[1] = q2_v1; + a1->val[1] = q2_v2; + a2->val[1] = q2_v3; + a3->val[1] = q2_v4; + + a4->val[0] = q1_v1; + a5->val[0] = q1_v2; + a6->val[0] = q1_v3; + a7->val[0] = q1_v4; + + a4->val[1] = q3_v1; + a5->val[1] = q3_v2; + a6->val[1] = q3_v3; + a7->val[1] = q3_v4; +} + +static INLINE void transpose_arrays_s16_4x4(const int16x4_t *const in, + int16x4_t *const out) { + int16x4_t a0 = in[0]; + int16x4_t a1 = in[1]; + int16x4_t a2 = in[2]; + int16x4_t a3 = in[3]; + + transpose_elems_inplace_s16_4x4(&a0, &a1, &a2, &a3); + + out[0] = a0; + out[1] = a1; + out[2] = a2; + out[3] = a3; +} + +static INLINE void transpose_arrays_s16_4x8(const int16x4_t *const in, + int16x8_t *const out) { +#if AOM_ARCH_AARCH64 + const int16x8_t a0 = vzip1q_s16(vcombine_s16(in[0], vdup_n_s16(0)), + vcombine_s16(in[1], vdup_n_s16(0))); + const int16x8_t a1 = vzip1q_s16(vcombine_s16(in[2], vdup_n_s16(0)), + vcombine_s16(in[3], vdup_n_s16(0))); + const int16x8_t a2 = vzip1q_s16(vcombine_s16(in[4], vdup_n_s16(0)), + vcombine_s16(in[5], vdup_n_s16(0))); + const int16x8_t a3 = vzip1q_s16(vcombine_s16(in[6], vdup_n_s16(0)), + vcombine_s16(in[7], vdup_n_s16(0))); +#else + int16x4x2_t temp; + temp = vzip_s16(in[0], in[1]); + const int16x8_t a0 = vcombine_s16(temp.val[0], temp.val[1]); + temp = vzip_s16(in[2], in[3]); + const int16x8_t a1 = vcombine_s16(temp.val[0], temp.val[1]); + temp = vzip_s16(in[4], in[5]); + const int16x8_t a2 = vcombine_s16(temp.val[0], temp.val[1]); + temp = vzip_s16(in[6], in[7]); + const int16x8_t a3 = vcombine_s16(temp.val[0], temp.val[1]); +#endif + + const int32x4x2_t b02 = + vzipq_s32(vreinterpretq_s32_s16(a0), vreinterpretq_s32_s16(a1)); + const int32x4x2_t b13 = + vzipq_s32(vreinterpretq_s32_s16(a2), vreinterpretq_s32_s16(a3)); + +#if AOM_ARCH_AARCH64 + out[0] = vreinterpretq_s16_s64(vzip1q_s64(vreinterpretq_s64_s32(b02.val[0]), + vreinterpretq_s64_s32(b13.val[0]))); + out[1] = vreinterpretq_s16_s64(vzip2q_s64(vreinterpretq_s64_s32(b02.val[0]), + vreinterpretq_s64_s32(b13.val[0]))); + out[2] = vreinterpretq_s16_s64(vzip1q_s64(vreinterpretq_s64_s32(b02.val[1]), + vreinterpretq_s64_s32(b13.val[1]))); + out[3] = vreinterpretq_s16_s64(vzip2q_s64(vreinterpretq_s64_s32(b02.val[1]), + vreinterpretq_s64_s32(b13.val[1]))); +#else + out[0] = vreinterpretq_s16_s32( + vextq_s32(vextq_s32(b02.val[0], b02.val[0], 2), b13.val[0], 2)); + out[2] = vreinterpretq_s16_s32( + vextq_s32(vextq_s32(b02.val[1], b02.val[1], 2), b13.val[1], 2)); + out[1] = vreinterpretq_s16_s32( + vextq_s32(b02.val[0], vextq_s32(b13.val[0], b13.val[0], 2), 2)); + out[3] = vreinterpretq_s16_s32( + vextq_s32(b02.val[1], vextq_s32(b13.val[1], b13.val[1], 2), 2)); +#endif +} + +static INLINE void transpose_arrays_s16_8x4(const int16x8_t *const in, + int16x4_t *const out) { + // Swap 16 bit elements. Goes from: + // in[0]: 00 01 02 03 04 05 06 07 + // in[1]: 10 11 12 13 14 15 16 17 + // in[2]: 20 21 22 23 24 25 26 27 + // in[3]: 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 int16x8x2_t b0 = vtrnq_s16(in[0], in[1]); + const int16x8x2_t b1 = vtrnq_s16(in[2], in[3]); + + // 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 + + const uint32x4x2_t c0 = vtrnq_u32(vreinterpretq_u32_s16(b0.val[0]), + vreinterpretq_u32_s16(b1.val[0])); + const uint32x4x2_t c1 = vtrnq_u32(vreinterpretq_u32_s16(b0.val[1]), + vreinterpretq_u32_s16(b1.val[1])); + + // Unpack 64 bit elements resulting in: + // out[0]: 00 10 20 30 + // out[1]: 01 11 21 31 + // out[2]: 02 12 22 32 + // out[3]: 03 13 23 33 + // out[4]: 04 14 24 34 + // out[5]: 05 15 25 35 + // out[6]: 06 16 26 36 + // out[7]: 07 17 27 37 + + out[0] = vget_low_s16(vreinterpretq_s16_u32(c0.val[0])); + out[1] = vget_low_s16(vreinterpretq_s16_u32(c1.val[0])); + out[2] = vget_low_s16(vreinterpretq_s16_u32(c0.val[1])); + out[3] = vget_low_s16(vreinterpretq_s16_u32(c1.val[1])); + out[4] = vget_high_s16(vreinterpretq_s16_u32(c0.val[0])); + out[5] = vget_high_s16(vreinterpretq_s16_u32(c1.val[0])); + out[6] = vget_high_s16(vreinterpretq_s16_u32(c0.val[1])); + out[7] = vget_high_s16(vreinterpretq_s16_u32(c1.val[1])); +} + +#endif // AOM_AOM_DSP_ARM_TRANSPOSE_NEON_H_ |