diff options
Diffstat (limited to 'third_party/aom/aom_dsp/arm/hadamard_neon.c')
-rw-r--r-- | third_party/aom/aom_dsp/arm/hadamard_neon.c | 200 |
1 files changed, 0 insertions, 200 deletions
diff --git a/third_party/aom/aom_dsp/arm/hadamard_neon.c b/third_party/aom/aom_dsp/arm/hadamard_neon.c deleted file mode 100644 index 9baefae47..000000000 --- a/third_party/aom/aom_dsp/arm/hadamard_neon.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * 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. - */ - -#include <arm_neon.h> - -#include "./aom_dsp_rtcd.h" - -static void hadamard8x8_one_pass(int16x8_t *a0, int16x8_t *a1, int16x8_t *a2, - int16x8_t *a3, int16x8_t *a4, int16x8_t *a5, - int16x8_t *a6, int16x8_t *a7) { - const int16x8_t b0 = vaddq_s16(*a0, *a1); - const int16x8_t b1 = vsubq_s16(*a0, *a1); - const int16x8_t b2 = vaddq_s16(*a2, *a3); - const int16x8_t b3 = vsubq_s16(*a2, *a3); - const int16x8_t b4 = vaddq_s16(*a4, *a5); - const int16x8_t b5 = vsubq_s16(*a4, *a5); - const int16x8_t b6 = vaddq_s16(*a6, *a7); - const int16x8_t b7 = vsubq_s16(*a6, *a7); - - const int16x8_t c0 = vaddq_s16(b0, b2); - const int16x8_t c1 = vaddq_s16(b1, b3); - const int16x8_t c2 = vsubq_s16(b0, b2); - const int16x8_t c3 = vsubq_s16(b1, b3); - const int16x8_t c4 = vaddq_s16(b4, b6); - const int16x8_t c5 = vaddq_s16(b5, b7); - const int16x8_t c6 = vsubq_s16(b4, b6); - const int16x8_t c7 = vsubq_s16(b5, b7); - - *a0 = vaddq_s16(c0, c4); - *a1 = vsubq_s16(c2, c6); - *a2 = vsubq_s16(c0, c4); - *a3 = vaddq_s16(c2, c6); - *a4 = vaddq_s16(c3, c7); - *a5 = vsubq_s16(c3, c7); - *a6 = vsubq_s16(c1, c5); - *a7 = vaddq_s16(c1, c5); -} - -// TODO(johannkoenig): Make a transpose library and dedup with idct. Consider -// reversing transpose order which may make it easier for the compiler to -// reconcile the vtrn.64 moves. -static void transpose8x8(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 64 bit elements. Goes from: - // a0: 00 01 02 03 04 05 06 07 - // a1: 08 09 10 11 12 13 14 15 - // a2: 16 17 18 19 20 21 22 23 - // a3: 24 25 26 27 28 29 30 31 - // a4: 32 33 34 35 36 37 38 39 - // a5: 40 41 42 43 44 45 46 47 - // a6: 48 49 50 51 52 53 54 55 - // a7: 56 57 58 59 60 61 62 63 - // to: - // a04_lo: 00 01 02 03 32 33 34 35 - // a15_lo: 08 09 10 11 40 41 42 43 - // a26_lo: 16 17 18 19 48 49 50 51 - // a37_lo: 24 25 26 27 56 57 58 59 - // a04_hi: 04 05 06 07 36 37 38 39 - // a15_hi: 12 13 14 15 44 45 46 47 - // a26_hi: 20 21 22 23 52 53 54 55 - // a37_hi: 28 29 30 31 60 61 62 63 - const int16x8_t a04_lo = vcombine_s16(vget_low_s16(*a0), vget_low_s16(*a4)); - const int16x8_t a15_lo = vcombine_s16(vget_low_s16(*a1), vget_low_s16(*a5)); - const int16x8_t a26_lo = vcombine_s16(vget_low_s16(*a2), vget_low_s16(*a6)); - const int16x8_t a37_lo = vcombine_s16(vget_low_s16(*a3), vget_low_s16(*a7)); - const int16x8_t a04_hi = vcombine_s16(vget_high_s16(*a0), vget_high_s16(*a4)); - const int16x8_t a15_hi = vcombine_s16(vget_high_s16(*a1), vget_high_s16(*a5)); - const int16x8_t a26_hi = vcombine_s16(vget_high_s16(*a2), vget_high_s16(*a6)); - const int16x8_t a37_hi = vcombine_s16(vget_high_s16(*a3), vget_high_s16(*a7)); - - // Swap 32 bit elements resulting in: - // a0246_lo: - // 00 01 16 17 32 33 48 49 - // 02 03 18 19 34 35 50 51 - // a1357_lo: - // 08 09 24 25 40 41 56 57 - // 10 11 26 27 42 43 58 59 - // a0246_hi: - // 04 05 20 21 36 37 52 53 - // 06 07 22 23 38 39 54 55 - // a1657_hi: - // 12 13 28 29 44 45 60 61 - // 14 15 30 31 46 47 62 63 - const int32x4x2_t a0246_lo = - vtrnq_s32(vreinterpretq_s32_s16(a04_lo), vreinterpretq_s32_s16(a26_lo)); - const int32x4x2_t a1357_lo = - vtrnq_s32(vreinterpretq_s32_s16(a15_lo), vreinterpretq_s32_s16(a37_lo)); - const int32x4x2_t a0246_hi = - vtrnq_s32(vreinterpretq_s32_s16(a04_hi), vreinterpretq_s32_s16(a26_hi)); - const int32x4x2_t a1357_hi = - vtrnq_s32(vreinterpretq_s32_s16(a15_hi), vreinterpretq_s32_s16(a37_hi)); - - // Swap 16 bit elements resulting in: - // b0: - // 00 08 16 24 32 40 48 56 - // 01 09 17 25 33 41 49 57 - // b1: - // 02 10 18 26 34 42 50 58 - // 03 11 19 27 35 43 51 59 - // b2: - // 04 12 20 28 36 44 52 60 - // 05 13 21 29 37 45 53 61 - // b3: - // 06 14 22 30 38 46 54 62 - // 07 15 23 31 39 47 55 63 - const int16x8x2_t b0 = vtrnq_s16(vreinterpretq_s16_s32(a0246_lo.val[0]), - vreinterpretq_s16_s32(a1357_lo.val[0])); - const int16x8x2_t b1 = vtrnq_s16(vreinterpretq_s16_s32(a0246_lo.val[1]), - vreinterpretq_s16_s32(a1357_lo.val[1])); - const int16x8x2_t b2 = vtrnq_s16(vreinterpretq_s16_s32(a0246_hi.val[0]), - vreinterpretq_s16_s32(a1357_hi.val[0])); - const int16x8x2_t b3 = vtrnq_s16(vreinterpretq_s16_s32(a0246_hi.val[1]), - vreinterpretq_s16_s32(a1357_hi.val[1])); - - *a0 = b0.val[0]; - *a1 = b0.val[1]; - *a2 = b1.val[0]; - *a3 = b1.val[1]; - *a4 = b2.val[0]; - *a5 = b2.val[1]; - *a6 = b3.val[0]; - *a7 = b3.val[1]; -} - -void aom_hadamard_8x8_neon(const int16_t *src_diff, int src_stride, - int16_t *coeff) { - int16x8_t a0 = vld1q_s16(src_diff); - int16x8_t a1 = vld1q_s16(src_diff + src_stride); - int16x8_t a2 = vld1q_s16(src_diff + 2 * src_stride); - int16x8_t a3 = vld1q_s16(src_diff + 3 * src_stride); - int16x8_t a4 = vld1q_s16(src_diff + 4 * src_stride); - int16x8_t a5 = vld1q_s16(src_diff + 5 * src_stride); - int16x8_t a6 = vld1q_s16(src_diff + 6 * src_stride); - int16x8_t a7 = vld1q_s16(src_diff + 7 * src_stride); - - hadamard8x8_one_pass(&a0, &a1, &a2, &a3, &a4, &a5, &a6, &a7); - - transpose8x8(&a0, &a1, &a2, &a3, &a4, &a5, &a6, &a7); - - hadamard8x8_one_pass(&a0, &a1, &a2, &a3, &a4, &a5, &a6, &a7); - - // Skip the second transpose because it is not required. - - vst1q_s16(coeff + 0, a0); - vst1q_s16(coeff + 8, a1); - vst1q_s16(coeff + 16, a2); - vst1q_s16(coeff + 24, a3); - vst1q_s16(coeff + 32, a4); - vst1q_s16(coeff + 40, a5); - vst1q_s16(coeff + 48, a6); - vst1q_s16(coeff + 56, a7); -} - -void aom_hadamard_16x16_neon(const int16_t *src_diff, int src_stride, - int16_t *coeff) { - int i; - - /* Rearrange 16x16 to 8x32 and remove stride. - * Top left first. */ - aom_hadamard_8x8_neon(src_diff + 0 + 0 * src_stride, src_stride, coeff + 0); - /* Top right. */ - aom_hadamard_8x8_neon(src_diff + 8 + 0 * src_stride, src_stride, coeff + 64); - /* Bottom left. */ - aom_hadamard_8x8_neon(src_diff + 0 + 8 * src_stride, src_stride, coeff + 128); - /* Bottom right. */ - aom_hadamard_8x8_neon(src_diff + 8 + 8 * src_stride, src_stride, coeff + 192); - - for (i = 0; i < 64; i += 8) { - const int16x8_t a0 = vld1q_s16(coeff + 0); - const int16x8_t a1 = vld1q_s16(coeff + 64); - const int16x8_t a2 = vld1q_s16(coeff + 128); - const int16x8_t a3 = vld1q_s16(coeff + 192); - - const int16x8_t b0 = vhaddq_s16(a0, a1); - const int16x8_t b1 = vhsubq_s16(a0, a1); - const int16x8_t b2 = vhaddq_s16(a2, a3); - const int16x8_t b3 = vhsubq_s16(a2, a3); - - const int16x8_t c0 = vaddq_s16(b0, b2); - const int16x8_t c1 = vaddq_s16(b1, b3); - const int16x8_t c2 = vsubq_s16(b0, b2); - const int16x8_t c3 = vsubq_s16(b1, b3); - - vst1q_s16(coeff + 0, c0); - vst1q_s16(coeff + 64, c1); - vst1q_s16(coeff + 128, c2); - vst1q_s16(coeff + 192, c3); - - coeff += 8; - } -} |