ref: 3252e6b63d69b7bf0add1a5a35e3af5b61c72995
dir: /vpx_dsp/arm/idct32x32_135_add_neon.c/
/* * Copyright (c) 2016 The WebM project authors. 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. */ #include <arm_neon.h> #include "./vpx_config.h" #include "./vpx_dsp_rtcd.h" #include "vpx_dsp/arm/idct_neon.h" #include "vpx_dsp/arm/transpose_neon.h" #include "vpx_dsp/txfm_common.h" static INLINE void load_8x8_s16(const tran_low_t *input, int16x8_t *const in0, int16x8_t *const in1, int16x8_t *const in2, int16x8_t *const in3, int16x8_t *const in4, int16x8_t *const in5, int16x8_t *const in6, int16x8_t *const in7) { *in0 = load_tran_low_to_s16q(input); input += 32; *in1 = load_tran_low_to_s16q(input); input += 32; *in2 = load_tran_low_to_s16q(input); input += 32; *in3 = load_tran_low_to_s16q(input); input += 32; *in4 = load_tran_low_to_s16q(input); input += 32; *in5 = load_tran_low_to_s16q(input); input += 32; *in6 = load_tran_low_to_s16q(input); input += 32; *in7 = load_tran_low_to_s16q(input); } static INLINE void load_4x8_s16(const tran_low_t *input, int16x4_t *const in0, int16x4_t *const in1, int16x4_t *const in2, int16x4_t *const in3, int16x4_t *const in4, int16x4_t *const in5, int16x4_t *const in6, int16x4_t *const in7) { *in0 = load_tran_low_to_s16d(input); input += 32; *in1 = load_tran_low_to_s16d(input); input += 32; *in2 = load_tran_low_to_s16d(input); input += 32; *in3 = load_tran_low_to_s16d(input); input += 32; *in4 = load_tran_low_to_s16d(input); input += 32; *in5 = load_tran_low_to_s16d(input); input += 32; *in6 = load_tran_low_to_s16d(input); input += 32; *in7 = load_tran_low_to_s16d(input); } // Only for the first pass of the _135_ variant. Since it only uses values from // the top left 16x16 it can safely assume all the remaining values are 0 and // skip an awful lot of calculations. In fact, only the first 12 columns make // the cut. None of the elements in the 13th, 14th, 15th or 16th columns are // used so it skips any calls to input[12|13|14|15] too. // In C this does a single row of 32 for each call. Here it transposes the top // left 12x8 to allow using SIMD. // vp9/common/vp9_scan.c:vp9_default_iscan_32x32 arranges the first 135 non-zero // coefficients as follows: // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 // 0 0 2 5 10 17 25 38 47 62 83 101 121 // 1 1 4 8 15 22 30 45 58 74 92 112 133 // 2 3 7 12 18 28 36 52 64 82 102 118 // 3 6 11 16 23 31 43 60 73 90 109 126 // 4 9 14 19 29 37 50 65 78 98 116 134 // 5 13 20 26 35 44 54 72 85 105 123 // 6 21 27 33 42 53 63 80 94 113 132 // 7 24 32 39 48 57 71 88 104 120 // 8 34 40 46 56 68 81 96 111 130 // 9 41 49 55 67 77 91 107 124 // 10 51 59 66 76 89 99 119 131 // 11 61 69 75 87 100 114 129 // 12 70 79 86 97 108 122 // 13 84 93 103 110 125 // 14 98 106 115 127 // 15 117 128 void vpx_idct32_12_neon(const tran_low_t *const input, int16_t *output) { int16x4_t tmp[8]; int16x8_t in[12], s1[32], s2[32], s3[32], s4[32], s5[32], s6[32], s7[32]; load_8x8_s16(input, &in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6], &in[7]); transpose_s16_8x8(&in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6], &in[7]); load_4x8_s16(input + 8, &tmp[0], &tmp[1], &tmp[2], &tmp[3], &tmp[4], &tmp[5], &tmp[6], &tmp[7]); transpose_s16_4x8(tmp[0], tmp[1], tmp[2], tmp[3], tmp[4], tmp[5], tmp[6], tmp[7], &in[8], &in[9], &in[10], &in[11]); // stage 1 s1[16] = multiply_shift_and_narrow_s16(in[1], cospi_31_64); s1[31] = multiply_shift_and_narrow_s16(in[1], cospi_1_64); s1[18] = multiply_shift_and_narrow_s16(in[9], cospi_23_64); s1[29] = multiply_shift_and_narrow_s16(in[9], cospi_9_64); s1[19] = multiply_shift_and_narrow_s16(in[7], -cospi_25_64); s1[28] = multiply_shift_and_narrow_s16(in[7], cospi_7_64); s1[20] = multiply_shift_and_narrow_s16(in[5], cospi_27_64); s1[27] = multiply_shift_and_narrow_s16(in[5], cospi_5_64); s1[21] = multiply_shift_and_narrow_s16(in[11], -cospi_21_64); s1[26] = multiply_shift_and_narrow_s16(in[11], cospi_11_64); s1[23] = multiply_shift_and_narrow_s16(in[3], -cospi_29_64); s1[24] = multiply_shift_and_narrow_s16(in[3], cospi_3_64); // stage 2 s2[8] = multiply_shift_and_narrow_s16(in[2], cospi_30_64); s2[15] = multiply_shift_and_narrow_s16(in[2], cospi_2_64); s2[10] = multiply_shift_and_narrow_s16(in[10], cospi_22_64); s2[13] = multiply_shift_and_narrow_s16(in[10], cospi_10_64); s2[11] = multiply_shift_and_narrow_s16(in[6], -cospi_26_64); s2[12] = multiply_shift_and_narrow_s16(in[6], cospi_6_64); s2[18] = vsubq_s16(s1[19], s1[18]); s2[19] = vaddq_s16(s1[18], s1[19]); s2[20] = vaddq_s16(s1[20], s1[21]); s2[21] = vsubq_s16(s1[20], s1[21]); s2[26] = vsubq_s16(s1[27], s1[26]); s2[27] = vaddq_s16(s1[26], s1[27]); s2[28] = vaddq_s16(s1[28], s1[29]); s2[29] = vsubq_s16(s1[28], s1[29]); // stage 3 s3[4] = multiply_shift_and_narrow_s16(in[4], cospi_28_64); s3[7] = multiply_shift_and_narrow_s16(in[4], cospi_4_64); s3[10] = vsubq_s16(s2[11], s2[10]); s3[11] = vaddq_s16(s2[10], s2[11]); s3[12] = vaddq_s16(s2[12], s2[13]); s3[13] = vsubq_s16(s2[12], s2[13]); s3[17] = multiply_accumulate_shift_and_narrow_s16(s1[16], -cospi_4_64, s1[31], cospi_28_64); s3[30] = multiply_accumulate_shift_and_narrow_s16(s1[16], cospi_28_64, s1[31], cospi_4_64); s3[18] = multiply_accumulate_shift_and_narrow_s16(s2[18], -cospi_28_64, s2[29], -cospi_4_64); s3[29] = multiply_accumulate_shift_and_narrow_s16(s2[18], -cospi_4_64, s2[29], cospi_28_64); s3[21] = multiply_accumulate_shift_and_narrow_s16(s2[21], -cospi_20_64, s2[26], cospi_12_64); s3[26] = multiply_accumulate_shift_and_narrow_s16(s2[21], cospi_12_64, s2[26], cospi_20_64); s3[22] = multiply_accumulate_shift_and_narrow_s16(s1[23], -cospi_12_64, s1[24], -cospi_20_64); s3[25] = multiply_accumulate_shift_and_narrow_s16(s1[23], -cospi_20_64, s1[24], cospi_12_64); // stage 4 s4[0] = multiply_shift_and_narrow_s16(in[0], cospi_16_64); s4[2] = multiply_shift_and_narrow_s16(in[8], cospi_24_64); s4[3] = multiply_shift_and_narrow_s16(in[8], cospi_8_64); s4[9] = multiply_accumulate_shift_and_narrow_s16(s2[8], -cospi_8_64, s2[15], cospi_24_64); s4[14] = multiply_accumulate_shift_and_narrow_s16(s2[8], cospi_24_64, s2[15], cospi_8_64); s4[10] = multiply_accumulate_shift_and_narrow_s16(s3[10], -cospi_24_64, s3[13], -cospi_8_64); s4[13] = multiply_accumulate_shift_and_narrow_s16(s3[10], -cospi_8_64, s3[13], cospi_24_64); s4[16] = vaddq_s16(s1[16], s2[19]); s4[17] = vaddq_s16(s3[17], s3[18]); s4[18] = vsubq_s16(s3[17], s3[18]); s4[19] = vsubq_s16(s1[16], s2[19]); s4[20] = vsubq_s16(s1[23], s2[20]); s4[21] = vsubq_s16(s3[22], s3[21]); s4[22] = vaddq_s16(s3[21], s3[22]); s4[23] = vaddq_s16(s2[20], s1[23]); s4[24] = vaddq_s16(s1[24], s2[27]); s4[25] = vaddq_s16(s3[25], s3[26]); s4[26] = vsubq_s16(s3[25], s3[26]); s4[27] = vsubq_s16(s1[24], s2[27]); s4[28] = vsubq_s16(s1[31], s2[28]); s4[29] = vsubq_s16(s3[30], s3[29]); s4[30] = vaddq_s16(s3[29], s3[30]); s4[31] = vaddq_s16(s2[28], s1[31]); // stage 5 s5[0] = vaddq_s16(s4[0], s4[3]); s5[1] = vaddq_s16(s4[0], s4[2]); s5[2] = vsubq_s16(s4[0], s4[2]); s5[3] = vsubq_s16(s4[0], s4[3]); s5[5] = sub_multiply_shift_and_narrow_s16(s3[7], s3[4], cospi_16_64); s5[6] = add_multiply_shift_and_narrow_s16(s3[4], s3[7], cospi_16_64); s5[8] = vaddq_s16(s2[8], s3[11]); s5[9] = vaddq_s16(s4[9], s4[10]); s5[10] = vsubq_s16(s4[9], s4[10]); s5[11] = vsubq_s16(s2[8], s3[11]); s5[12] = vsubq_s16(s2[15], s3[12]); s5[13] = vsubq_s16(s4[14], s4[13]); s5[14] = vaddq_s16(s4[13], s4[14]); s5[15] = vaddq_s16(s2[15], s3[12]); s5[18] = multiply_accumulate_shift_and_narrow_s16(s4[18], -cospi_8_64, s4[29], cospi_24_64); s5[29] = multiply_accumulate_shift_and_narrow_s16(s4[18], cospi_24_64, s4[29], cospi_8_64); s5[19] = multiply_accumulate_shift_and_narrow_s16(s4[19], -cospi_8_64, s4[28], cospi_24_64); s5[28] = multiply_accumulate_shift_and_narrow_s16(s4[19], cospi_24_64, s4[28], cospi_8_64); s5[20] = multiply_accumulate_shift_and_narrow_s16(s4[20], -cospi_24_64, s4[27], -cospi_8_64); s5[27] = multiply_accumulate_shift_and_narrow_s16(s4[20], -cospi_8_64, s4[27], cospi_24_64); s5[21] = multiply_accumulate_shift_and_narrow_s16(s4[21], -cospi_24_64, s4[26], -cospi_8_64); s5[26] = multiply_accumulate_shift_and_narrow_s16(s4[21], -cospi_8_64, s4[26], cospi_24_64); // stage 6 s6[0] = vaddq_s16(s5[0], s3[7]); s6[1] = vaddq_s16(s5[1], s5[6]); s6[2] = vaddq_s16(s5[2], s5[5]); s6[3] = vaddq_s16(s5[3], s3[4]); s6[4] = vsubq_s16(s5[3], s3[4]); s6[5] = vsubq_s16(s5[2], s5[5]); s6[6] = vsubq_s16(s5[1], s5[6]); s6[7] = vsubq_s16(s5[0], s3[7]); s6[10] = sub_multiply_shift_and_narrow_s16(s5[13], s5[10], cospi_16_64); s6[13] = add_multiply_shift_and_narrow_s16(s5[10], s5[13], cospi_16_64); s6[11] = sub_multiply_shift_and_narrow_s16(s5[12], s5[11], cospi_16_64); s6[12] = add_multiply_shift_and_narrow_s16(s5[11], s5[12], cospi_16_64); s6[16] = vaddq_s16(s4[16], s4[23]); s6[17] = vaddq_s16(s4[17], s4[22]); s6[18] = vaddq_s16(s5[18], s5[21]); s6[19] = vaddq_s16(s5[19], s5[20]); s6[20] = vsubq_s16(s5[19], s5[20]); s6[21] = vsubq_s16(s5[18], s5[21]); s6[22] = vsubq_s16(s4[17], s4[22]); s6[23] = vsubq_s16(s4[16], s4[23]); s6[24] = vsubq_s16(s4[31], s4[24]); s6[25] = vsubq_s16(s4[30], s4[25]); s6[26] = vsubq_s16(s5[29], s5[26]); s6[27] = vsubq_s16(s5[28], s5[27]); s6[28] = vaddq_s16(s5[27], s5[28]); s6[29] = vaddq_s16(s5[26], s5[29]); s6[30] = vaddq_s16(s4[25], s4[30]); s6[31] = vaddq_s16(s4[24], s4[31]); // stage 7 s7[0] = vaddq_s16(s6[0], s5[15]); s7[1] = vaddq_s16(s6[1], s5[14]); s7[2] = vaddq_s16(s6[2], s6[13]); s7[3] = vaddq_s16(s6[3], s6[12]); s7[4] = vaddq_s16(s6[4], s6[11]); s7[5] = vaddq_s16(s6[5], s6[10]); s7[6] = vaddq_s16(s6[6], s5[9]); s7[7] = vaddq_s16(s6[7], s5[8]); s7[8] = vsubq_s16(s6[7], s5[8]); s7[9] = vsubq_s16(s6[6], s5[9]); s7[10] = vsubq_s16(s6[5], s6[10]); s7[11] = vsubq_s16(s6[4], s6[11]); s7[12] = vsubq_s16(s6[3], s6[12]); s7[13] = vsubq_s16(s6[2], s6[13]); s7[14] = vsubq_s16(s6[1], s5[14]); s7[15] = vsubq_s16(s6[0], s5[15]); s7[20] = sub_multiply_shift_and_narrow_s16(s6[27], s6[20], cospi_16_64); s7[27] = add_multiply_shift_and_narrow_s16(s6[20], s6[27], cospi_16_64); s7[21] = sub_multiply_shift_and_narrow_s16(s6[26], s6[21], cospi_16_64); s7[26] = add_multiply_shift_and_narrow_s16(s6[21], s6[26], cospi_16_64); s7[22] = sub_multiply_shift_and_narrow_s16(s6[25], s6[22], cospi_16_64); s7[25] = add_multiply_shift_and_narrow_s16(s6[22], s6[25], cospi_16_64); s7[23] = sub_multiply_shift_and_narrow_s16(s6[24], s6[23], cospi_16_64); s7[24] = add_multiply_shift_and_narrow_s16(s6[23], s6[24], cospi_16_64); // final stage vst1q_s16(output, vaddq_s16(s7[0], s6[31])); output += 16; vst1q_s16(output, vaddq_s16(s7[1], s6[30])); output += 16; vst1q_s16(output, vaddq_s16(s7[2], s6[29])); output += 16; vst1q_s16(output, vaddq_s16(s7[3], s6[28])); output += 16; vst1q_s16(output, vaddq_s16(s7[4], s7[27])); output += 16; vst1q_s16(output, vaddq_s16(s7[5], s7[26])); output += 16; vst1q_s16(output, vaddq_s16(s7[6], s7[25])); output += 16; vst1q_s16(output, vaddq_s16(s7[7], s7[24])); output += 16; vst1q_s16(output, vaddq_s16(s7[8], s7[23])); output += 16; vst1q_s16(output, vaddq_s16(s7[9], s7[22])); output += 16; vst1q_s16(output, vaddq_s16(s7[10], s7[21])); output += 16; vst1q_s16(output, vaddq_s16(s7[11], s7[20])); output += 16; vst1q_s16(output, vaddq_s16(s7[12], s6[19])); output += 16; vst1q_s16(output, vaddq_s16(s7[13], s6[18])); output += 16; vst1q_s16(output, vaddq_s16(s7[14], s6[17])); output += 16; vst1q_s16(output, vaddq_s16(s7[15], s6[16])); output += 16; vst1q_s16(output, vsubq_s16(s7[15], s6[16])); output += 16; vst1q_s16(output, vsubq_s16(s7[14], s6[17])); output += 16; vst1q_s16(output, vsubq_s16(s7[13], s6[18])); output += 16; vst1q_s16(output, vsubq_s16(s7[12], s6[19])); output += 16; vst1q_s16(output, vsubq_s16(s7[11], s7[20])); output += 16; vst1q_s16(output, vsubq_s16(s7[10], s7[21])); output += 16; vst1q_s16(output, vsubq_s16(s7[9], s7[22])); output += 16; vst1q_s16(output, vsubq_s16(s7[8], s7[23])); output += 16; vst1q_s16(output, vsubq_s16(s7[7], s7[24])); output += 16; vst1q_s16(output, vsubq_s16(s7[6], s7[25])); output += 16; vst1q_s16(output, vsubq_s16(s7[5], s7[26])); output += 16; vst1q_s16(output, vsubq_s16(s7[4], s7[27])); output += 16; vst1q_s16(output, vsubq_s16(s7[3], s6[28])); output += 16; vst1q_s16(output, vsubq_s16(s7[2], s6[29])); output += 16; vst1q_s16(output, vsubq_s16(s7[1], s6[30])); output += 16; vst1q_s16(output, vsubq_s16(s7[0], s6[31])); } void vpx_idct32_16_neon(const int16_t *const input, void *const output, const int stride, const int highbd_flag) { int16x8_t in[16], s1[32], s2[32], s3[32], s4[32], s5[32], s6[32], s7[32], out[32]; load_and_transpose_s16_8x8(input, 16, &in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6], &in[7]); load_and_transpose_s16_8x8(input + 8, 16, &in[8], &in[9], &in[10], &in[11], &in[12], &in[13], &in[14], &in[15]); // stage 1 s1[16] = multiply_shift_and_narrow_s16(in[1], cospi_31_64); s1[31] = multiply_shift_and_narrow_s16(in[1], cospi_1_64); s1[17] = multiply_shift_and_narrow_s16(in[15], -cospi_17_64); s1[30] = multiply_shift_and_narrow_s16(in[15], cospi_15_64); s1[18] = multiply_shift_and_narrow_s16(in[9], cospi_23_64); s1[29] = multiply_shift_and_narrow_s16(in[9], cospi_9_64); s1[19] = multiply_shift_and_narrow_s16(in[7], -cospi_25_64); s1[28] = multiply_shift_and_narrow_s16(in[7], cospi_7_64); s1[20] = multiply_shift_and_narrow_s16(in[5], cospi_27_64); s1[27] = multiply_shift_and_narrow_s16(in[5], cospi_5_64); s1[21] = multiply_shift_and_narrow_s16(in[11], -cospi_21_64); s1[26] = multiply_shift_and_narrow_s16(in[11], cospi_11_64); s1[22] = multiply_shift_and_narrow_s16(in[13], cospi_19_64); s1[25] = multiply_shift_and_narrow_s16(in[13], cospi_13_64); s1[23] = multiply_shift_and_narrow_s16(in[3], -cospi_29_64); s1[24] = multiply_shift_and_narrow_s16(in[3], cospi_3_64); // stage 2 s2[8] = multiply_shift_and_narrow_s16(in[2], cospi_30_64); s2[15] = multiply_shift_and_narrow_s16(in[2], cospi_2_64); s2[9] = multiply_shift_and_narrow_s16(in[14], -cospi_18_64); s2[14] = multiply_shift_and_narrow_s16(in[14], cospi_14_64); s2[10] = multiply_shift_and_narrow_s16(in[10], cospi_22_64); s2[13] = multiply_shift_and_narrow_s16(in[10], cospi_10_64); s2[11] = multiply_shift_and_narrow_s16(in[6], -cospi_26_64); s2[12] = multiply_shift_and_narrow_s16(in[6], cospi_6_64); s2[16] = vaddq_s16(s1[16], s1[17]); s2[17] = vsubq_s16(s1[16], s1[17]); s2[18] = vsubq_s16(s1[19], s1[18]); s2[19] = vaddq_s16(s1[18], s1[19]); s2[20] = vaddq_s16(s1[20], s1[21]); s2[21] = vsubq_s16(s1[20], s1[21]); s2[22] = vsubq_s16(s1[23], s1[22]); s2[23] = vaddq_s16(s1[22], s1[23]); s2[24] = vaddq_s16(s1[24], s1[25]); s2[25] = vsubq_s16(s1[24], s1[25]); s2[26] = vsubq_s16(s1[27], s1[26]); s2[27] = vaddq_s16(s1[26], s1[27]); s2[28] = vaddq_s16(s1[28], s1[29]); s2[29] = vsubq_s16(s1[28], s1[29]); s2[30] = vsubq_s16(s1[31], s1[30]); s2[31] = vaddq_s16(s1[30], s1[31]); // stage 3 s3[4] = multiply_shift_and_narrow_s16(in[4], cospi_28_64); s3[7] = multiply_shift_and_narrow_s16(in[4], cospi_4_64); s3[5] = multiply_shift_and_narrow_s16(in[12], -cospi_20_64); s3[6] = multiply_shift_and_narrow_s16(in[12], cospi_12_64); s3[8] = vaddq_s16(s2[8], s2[9]); s3[9] = vsubq_s16(s2[8], s2[9]); s3[10] = vsubq_s16(s2[11], s2[10]); s3[11] = vaddq_s16(s2[10], s2[11]); s3[12] = vaddq_s16(s2[12], s2[13]); s3[13] = vsubq_s16(s2[12], s2[13]); s3[14] = vsubq_s16(s2[15], s2[14]); s3[15] = vaddq_s16(s2[14], s2[15]); s3[17] = multiply_accumulate_shift_and_narrow_s16(s2[17], -cospi_4_64, s2[30], cospi_28_64); s3[30] = multiply_accumulate_shift_and_narrow_s16(s2[17], cospi_28_64, s2[30], cospi_4_64); s3[18] = multiply_accumulate_shift_and_narrow_s16(s2[18], -cospi_28_64, s2[29], -cospi_4_64); s3[29] = multiply_accumulate_shift_and_narrow_s16(s2[18], -cospi_4_64, s2[29], cospi_28_64); s3[21] = multiply_accumulate_shift_and_narrow_s16(s2[21], -cospi_20_64, s2[26], cospi_12_64); s3[26] = multiply_accumulate_shift_and_narrow_s16(s2[21], cospi_12_64, s2[26], cospi_20_64); s3[22] = multiply_accumulate_shift_and_narrow_s16(s2[22], -cospi_12_64, s2[25], -cospi_20_64); s3[25] = multiply_accumulate_shift_and_narrow_s16(s2[22], -cospi_20_64, s2[25], cospi_12_64); // stage 4 s4[0] = multiply_shift_and_narrow_s16(in[0], cospi_16_64); s4[2] = multiply_shift_and_narrow_s16(in[8], cospi_24_64); s4[3] = multiply_shift_and_narrow_s16(in[8], cospi_8_64); s4[4] = vaddq_s16(s3[4], s3[5]); s4[5] = vsubq_s16(s3[4], s3[5]); s4[6] = vsubq_s16(s3[7], s3[6]); s4[7] = vaddq_s16(s3[6], s3[7]); s4[9] = multiply_accumulate_shift_and_narrow_s16(s3[9], -cospi_8_64, s3[14], cospi_24_64); s4[14] = multiply_accumulate_shift_and_narrow_s16(s3[9], cospi_24_64, s3[14], cospi_8_64); s4[10] = multiply_accumulate_shift_and_narrow_s16(s3[10], -cospi_24_64, s3[13], -cospi_8_64); s4[13] = multiply_accumulate_shift_and_narrow_s16(s3[10], -cospi_8_64, s3[13], cospi_24_64); s4[16] = vaddq_s16(s2[16], s2[19]); s4[17] = vaddq_s16(s3[17], s3[18]); s4[18] = vsubq_s16(s3[17], s3[18]); s4[19] = vsubq_s16(s2[16], s2[19]); s4[20] = vsubq_s16(s2[23], s2[20]); s4[21] = vsubq_s16(s3[22], s3[21]); s4[22] = vaddq_s16(s3[21], s3[22]); s4[23] = vaddq_s16(s2[20], s2[23]); s4[24] = vaddq_s16(s2[24], s2[27]); s4[25] = vaddq_s16(s3[25], s3[26]); s4[26] = vsubq_s16(s3[25], s3[26]); s4[27] = vsubq_s16(s2[24], s2[27]); s4[28] = vsubq_s16(s2[31], s2[28]); s4[29] = vsubq_s16(s3[30], s3[29]); s4[30] = vaddq_s16(s3[29], s3[30]); s4[31] = vaddq_s16(s2[28], s2[31]); // stage 5 s5[0] = vaddq_s16(s4[0], s4[3]); s5[1] = vaddq_s16(s4[0], s4[2]); s5[2] = vsubq_s16(s4[0], s4[2]); s5[3] = vsubq_s16(s4[0], s4[3]); s5[5] = sub_multiply_shift_and_narrow_s16(s4[6], s4[5], cospi_16_64); s5[6] = add_multiply_shift_and_narrow_s16(s4[5], s4[6], cospi_16_64); s5[8] = vaddq_s16(s3[8], s3[11]); s5[9] = vaddq_s16(s4[9], s4[10]); s5[10] = vsubq_s16(s4[9], s4[10]); s5[11] = vsubq_s16(s3[8], s3[11]); s5[12] = vsubq_s16(s3[15], s3[12]); s5[13] = vsubq_s16(s4[14], s4[13]); s5[14] = vaddq_s16(s4[13], s4[14]); s5[15] = vaddq_s16(s3[15], s3[12]); s5[18] = multiply_accumulate_shift_and_narrow_s16(s4[18], -cospi_8_64, s4[29], cospi_24_64); s5[29] = multiply_accumulate_shift_and_narrow_s16(s4[18], cospi_24_64, s4[29], cospi_8_64); s5[19] = multiply_accumulate_shift_and_narrow_s16(s4[19], -cospi_8_64, s4[28], cospi_24_64); s5[28] = multiply_accumulate_shift_and_narrow_s16(s4[19], cospi_24_64, s4[28], cospi_8_64); s5[20] = multiply_accumulate_shift_and_narrow_s16(s4[20], -cospi_24_64, s4[27], -cospi_8_64); s5[27] = multiply_accumulate_shift_and_narrow_s16(s4[20], -cospi_8_64, s4[27], cospi_24_64); s5[21] = multiply_accumulate_shift_and_narrow_s16(s4[21], -cospi_24_64, s4[26], -cospi_8_64); s5[26] = multiply_accumulate_shift_and_narrow_s16(s4[21], -cospi_8_64, s4[26], cospi_24_64); // stage 6 s6[0] = vaddq_s16(s5[0], s4[7]); s6[1] = vaddq_s16(s5[1], s5[6]); s6[2] = vaddq_s16(s5[2], s5[5]); s6[3] = vaddq_s16(s5[3], s4[4]); s6[4] = vsubq_s16(s5[3], s4[4]); s6[5] = vsubq_s16(s5[2], s5[5]); s6[6] = vsubq_s16(s5[1], s5[6]); s6[7] = vsubq_s16(s5[0], s4[7]); s6[10] = sub_multiply_shift_and_narrow_s16(s5[13], s5[10], cospi_16_64); s6[13] = add_multiply_shift_and_narrow_s16(s5[10], s5[13], cospi_16_64); s6[11] = sub_multiply_shift_and_narrow_s16(s5[12], s5[11], cospi_16_64); s6[12] = add_multiply_shift_and_narrow_s16(s5[11], s5[12], cospi_16_64); s6[16] = vaddq_s16(s4[16], s4[23]); s6[17] = vaddq_s16(s4[17], s4[22]); s6[18] = vaddq_s16(s5[18], s5[21]); s6[19] = vaddq_s16(s5[19], s5[20]); s6[20] = vsubq_s16(s5[19], s5[20]); s6[21] = vsubq_s16(s5[18], s5[21]); s6[22] = vsubq_s16(s4[17], s4[22]); s6[23] = vsubq_s16(s4[16], s4[23]); s6[24] = vsubq_s16(s4[31], s4[24]); s6[25] = vsubq_s16(s4[30], s4[25]); s6[26] = vsubq_s16(s5[29], s5[26]); s6[27] = vsubq_s16(s5[28], s5[27]); s6[28] = vaddq_s16(s5[27], s5[28]); s6[29] = vaddq_s16(s5[26], s5[29]); s6[30] = vaddq_s16(s4[25], s4[30]); s6[31] = vaddq_s16(s4[24], s4[31]); // stage 7 s7[0] = vaddq_s16(s6[0], s5[15]); s7[1] = vaddq_s16(s6[1], s5[14]); s7[2] = vaddq_s16(s6[2], s6[13]); s7[3] = vaddq_s16(s6[3], s6[12]); s7[4] = vaddq_s16(s6[4], s6[11]); s7[5] = vaddq_s16(s6[5], s6[10]); s7[6] = vaddq_s16(s6[6], s5[9]); s7[7] = vaddq_s16(s6[7], s5[8]); s7[8] = vsubq_s16(s6[7], s5[8]); s7[9] = vsubq_s16(s6[6], s5[9]); s7[10] = vsubq_s16(s6[5], s6[10]); s7[11] = vsubq_s16(s6[4], s6[11]); s7[12] = vsubq_s16(s6[3], s6[12]); s7[13] = vsubq_s16(s6[2], s6[13]); s7[14] = vsubq_s16(s6[1], s5[14]); s7[15] = vsubq_s16(s6[0], s5[15]); s7[20] = sub_multiply_shift_and_narrow_s16(s6[27], s6[20], cospi_16_64); s7[27] = add_multiply_shift_and_narrow_s16(s6[20], s6[27], cospi_16_64); s7[21] = sub_multiply_shift_and_narrow_s16(s6[26], s6[21], cospi_16_64); s7[26] = add_multiply_shift_and_narrow_s16(s6[21], s6[26], cospi_16_64); s7[22] = sub_multiply_shift_and_narrow_s16(s6[25], s6[22], cospi_16_64); s7[25] = add_multiply_shift_and_narrow_s16(s6[22], s6[25], cospi_16_64); s7[23] = sub_multiply_shift_and_narrow_s16(s6[24], s6[23], cospi_16_64); s7[24] = add_multiply_shift_and_narrow_s16(s6[23], s6[24], cospi_16_64); // final stage out[0] = final_add(s7[0], s6[31]); out[1] = final_add(s7[1], s6[30]); out[2] = final_add(s7[2], s6[29]); out[3] = final_add(s7[3], s6[28]); out[4] = final_add(s7[4], s7[27]); out[5] = final_add(s7[5], s7[26]); out[6] = final_add(s7[6], s7[25]); out[7] = final_add(s7[7], s7[24]); out[8] = final_add(s7[8], s7[23]); out[9] = final_add(s7[9], s7[22]); out[10] = final_add(s7[10], s7[21]); out[11] = final_add(s7[11], s7[20]); out[12] = final_add(s7[12], s6[19]); out[13] = final_add(s7[13], s6[18]); out[14] = final_add(s7[14], s6[17]); out[15] = final_add(s7[15], s6[16]); out[16] = final_sub(s7[15], s6[16]); out[17] = final_sub(s7[14], s6[17]); out[18] = final_sub(s7[13], s6[18]); out[19] = final_sub(s7[12], s6[19]); out[20] = final_sub(s7[11], s7[20]); out[21] = final_sub(s7[10], s7[21]); out[22] = final_sub(s7[9], s7[22]); out[23] = final_sub(s7[8], s7[23]); out[24] = final_sub(s7[7], s7[24]); out[25] = final_sub(s7[6], s7[25]); out[26] = final_sub(s7[5], s7[26]); out[27] = final_sub(s7[4], s7[27]); out[28] = final_sub(s7[3], s6[28]); out[29] = final_sub(s7[2], s6[29]); out[30] = final_sub(s7[1], s6[30]); out[31] = final_sub(s7[0], s6[31]); if (highbd_flag) { highbd_add_and_store_bd8(out, output, stride); } else { uint8_t *const outputT = (uint8_t *)output; add_and_store_u8_s16(out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7], outputT, stride); add_and_store_u8_s16(out[8], out[9], out[10], out[11], out[12], out[13], out[14], out[15], outputT + (8 * stride), stride); add_and_store_u8_s16(out[16], out[17], out[18], out[19], out[20], out[21], out[22], out[23], outputT + (16 * stride), stride); add_and_store_u8_s16(out[24], out[25], out[26], out[27], out[28], out[29], out[30], out[31], outputT + (24 * stride), stride); } } void vpx_idct32x32_135_add_neon(const tran_low_t *input, uint8_t *dest, int stride) { int i; int16_t temp[32 * 16]; int16_t *t = temp; vpx_idct32_12_neon(input, temp); vpx_idct32_12_neon(input + 32 * 8, temp + 8); for (i = 0; i < 32; i += 8) { vpx_idct32_16_neon(t, dest, stride, 0); t += (16 * 8); dest += 8; } }