ref: 71f9da5c7878d1227eb07d0f6578ac2f8fc72ed6
dir: /vp9/common/arm/neon/vp9_highbd_iht8x8_add_neon.c/
/* * Copyright (c) 2018 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_dsp_rtcd.h" #include "vp9/common/vp9_enums.h" #include "vp9/common/arm/neon/vp9_iht_neon.h" #include "vpx_dsp/arm/highbd_idct_neon.h" #include "vpx_dsp/arm/idct_neon.h" #include "vpx_dsp/arm/transpose_neon.h" #include "vpx_dsp/inv_txfm.h" static INLINE void highbd_iadst_half_butterfly_neon(int32x4_t *const x, const int32x2_t c) { const int32x4_t sum = vaddq_s32(x[0], x[1]); const int32x4_t sub = vsubq_s32(x[0], x[1]); const int64x2_t t0_lo = vmull_lane_s32(vget_low_s32(sum), c, 0); const int64x2_t t1_lo = vmull_lane_s32(vget_low_s32(sub), c, 0); const int64x2_t t0_hi = vmull_lane_s32(vget_high_s32(sum), c, 0); const int64x2_t t1_hi = vmull_lane_s32(vget_high_s32(sub), c, 0); const int32x2_t out0_lo = vrshrn_n_s64(t0_lo, DCT_CONST_BITS); const int32x2_t out1_lo = vrshrn_n_s64(t1_lo, DCT_CONST_BITS); const int32x2_t out0_hi = vrshrn_n_s64(t0_hi, DCT_CONST_BITS); const int32x2_t out1_hi = vrshrn_n_s64(t1_hi, DCT_CONST_BITS); x[0] = vcombine_s32(out0_lo, out0_hi); x[1] = vcombine_s32(out1_lo, out1_hi); } static INLINE void highbd_iadst_butterfly_lane_0_1_neon(const int32x4_t in0, const int32x4_t in1, const int32x2_t c, int64x2_t *const s0, int64x2_t *const s1) { const int64x2_t t0_lo = vmull_lane_s32(vget_low_s32(in0), c, 0); const int64x2_t t1_lo = vmull_lane_s32(vget_low_s32(in0), c, 1); const int64x2_t t0_hi = vmull_lane_s32(vget_high_s32(in0), c, 0); const int64x2_t t1_hi = vmull_lane_s32(vget_high_s32(in0), c, 1); s0[0] = vmlal_lane_s32(t0_lo, vget_low_s32(in1), c, 1); s1[0] = vmlsl_lane_s32(t1_lo, vget_low_s32(in1), c, 0); s0[1] = vmlal_lane_s32(t0_hi, vget_high_s32(in1), c, 1); s1[1] = vmlsl_lane_s32(t1_hi, vget_high_s32(in1), c, 0); } static INLINE void highbd_iadst_butterfly_lane_1_0_neon(const int32x4_t in0, const int32x4_t in1, const int32x2_t c, int64x2_t *const s0, int64x2_t *const s1) { const int64x2_t t0_lo = vmull_lane_s32(vget_low_s32(in0), c, 1); const int64x2_t t1_lo = vmull_lane_s32(vget_low_s32(in0), c, 0); const int64x2_t t0_hi = vmull_lane_s32(vget_high_s32(in0), c, 1); const int64x2_t t1_hi = vmull_lane_s32(vget_high_s32(in0), c, 0); s0[0] = vmlal_lane_s32(t0_lo, vget_low_s32(in1), c, 0); s1[0] = vmlsl_lane_s32(t1_lo, vget_low_s32(in1), c, 1); s0[1] = vmlal_lane_s32(t0_hi, vget_high_s32(in1), c, 0); s1[1] = vmlsl_lane_s32(t1_hi, vget_high_s32(in1), c, 1); } static INLINE int32x4_t highbd_add_dct_const_round_shift_low_8( const int64x2_t *const in0, const int64x2_t *const in1) { const int64x2_t sum_lo = vaddq_s64(in0[0], in1[0]); const int64x2_t sum_hi = vaddq_s64(in0[1], in1[1]); const int32x2_t out_lo = vrshrn_n_s64(sum_lo, DCT_CONST_BITS); const int32x2_t out_hi = vrshrn_n_s64(sum_hi, DCT_CONST_BITS); return vcombine_s32(out_lo, out_hi); } static INLINE int32x4_t highbd_sub_dct_const_round_shift_low_8( const int64x2_t *const in0, const int64x2_t *const in1) { const int64x2_t sub_lo = vsubq_s64(in0[0], in1[0]); const int64x2_t sub_hi = vsubq_s64(in0[1], in1[1]); const int32x2_t out_lo = vrshrn_n_s64(sub_lo, DCT_CONST_BITS); const int32x2_t out_hi = vrshrn_n_s64(sub_hi, DCT_CONST_BITS); return vcombine_s32(out_lo, out_hi); } static INLINE void highbd_iadst8(int32x4_t *const io0, int32x4_t *const io1, int32x4_t *const io2, int32x4_t *const io3, int32x4_t *const io4, int32x4_t *const io5, int32x4_t *const io6, int32x4_t *const io7) { const int32x4_t c0 = create_s32x4_neon(cospi_2_64, cospi_30_64, cospi_10_64, cospi_22_64); const int32x4_t c1 = create_s32x4_neon(cospi_18_64, cospi_14_64, cospi_26_64, cospi_6_64); const int32x4_t c2 = create_s32x4_neon(cospi_16_64, 0, cospi_8_64, cospi_24_64); int32x4_t x[8], t[4]; int64x2_t s[8][2]; x[0] = *io7; x[1] = *io0; x[2] = *io5; x[3] = *io2; x[4] = *io3; x[5] = *io4; x[6] = *io1; x[7] = *io6; // stage 1 highbd_iadst_butterfly_lane_0_1_neon(x[0], x[1], vget_low_s32(c0), s[0], s[1]); highbd_iadst_butterfly_lane_0_1_neon(x[2], x[3], vget_high_s32(c0), s[2], s[3]); highbd_iadst_butterfly_lane_0_1_neon(x[4], x[5], vget_low_s32(c1), s[4], s[5]); highbd_iadst_butterfly_lane_0_1_neon(x[6], x[7], vget_high_s32(c1), s[6], s[7]); x[0] = highbd_add_dct_const_round_shift_low_8(s[0], s[4]); x[1] = highbd_add_dct_const_round_shift_low_8(s[1], s[5]); x[2] = highbd_add_dct_const_round_shift_low_8(s[2], s[6]); x[3] = highbd_add_dct_const_round_shift_low_8(s[3], s[7]); x[4] = highbd_sub_dct_const_round_shift_low_8(s[0], s[4]); x[5] = highbd_sub_dct_const_round_shift_low_8(s[1], s[5]); x[6] = highbd_sub_dct_const_round_shift_low_8(s[2], s[6]); x[7] = highbd_sub_dct_const_round_shift_low_8(s[3], s[7]); // stage 2 t[0] = x[0]; t[1] = x[1]; t[2] = x[2]; t[3] = x[3]; highbd_iadst_butterfly_lane_0_1_neon(x[4], x[5], vget_high_s32(c2), s[4], s[5]); highbd_iadst_butterfly_lane_1_0_neon(x[7], x[6], vget_high_s32(c2), s[7], s[6]); x[0] = vaddq_s32(t[0], t[2]); x[1] = vaddq_s32(t[1], t[3]); x[2] = vsubq_s32(t[0], t[2]); x[3] = vsubq_s32(t[1], t[3]); x[4] = highbd_add_dct_const_round_shift_low_8(s[4], s[6]); x[5] = highbd_add_dct_const_round_shift_low_8(s[5], s[7]); x[6] = highbd_sub_dct_const_round_shift_low_8(s[4], s[6]); x[7] = highbd_sub_dct_const_round_shift_low_8(s[5], s[7]); // stage 3 highbd_iadst_half_butterfly_neon(x + 2, vget_low_s32(c2)); highbd_iadst_half_butterfly_neon(x + 6, vget_low_s32(c2)); *io0 = x[0]; *io1 = vnegq_s32(x[4]); *io2 = x[6]; *io3 = vnegq_s32(x[2]); *io4 = x[3]; *io5 = vnegq_s32(x[7]); *io6 = x[5]; *io7 = vnegq_s32(x[1]); } void vp9_highbd_iht8x8_64_add_neon(const tran_low_t *input, uint16_t *dest, int stride, int tx_type, int bd) { int32x4_t a[16]; int16x8_t c[8]; a[0] = vld1q_s32(input); a[1] = vld1q_s32(input + 4); a[2] = vld1q_s32(input + 8); a[3] = vld1q_s32(input + 12); a[4] = vld1q_s32(input + 16); a[5] = vld1q_s32(input + 20); a[6] = vld1q_s32(input + 24); a[7] = vld1q_s32(input + 28); a[8] = vld1q_s32(input + 32); a[9] = vld1q_s32(input + 36); a[10] = vld1q_s32(input + 40); a[11] = vld1q_s32(input + 44); a[12] = vld1q_s32(input + 48); a[13] = vld1q_s32(input + 52); a[14] = vld1q_s32(input + 56); a[15] = vld1q_s32(input + 60); if (bd == 8) { c[0] = vcombine_s16(vmovn_s32(a[0]), vmovn_s32(a[1])); c[1] = vcombine_s16(vmovn_s32(a[2]), vmovn_s32(a[3])); c[2] = vcombine_s16(vmovn_s32(a[4]), vmovn_s32(a[5])); c[3] = vcombine_s16(vmovn_s32(a[6]), vmovn_s32(a[7])); c[4] = vcombine_s16(vmovn_s32(a[8]), vmovn_s32(a[9])); c[5] = vcombine_s16(vmovn_s32(a[10]), vmovn_s32(a[11])); c[6] = vcombine_s16(vmovn_s32(a[12]), vmovn_s32(a[13])); c[7] = vcombine_s16(vmovn_s32(a[14]), vmovn_s32(a[15])); switch (tx_type) { case DCT_DCT: { const int16x8_t cospis = vld1q_s16(kCospi); const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24 const int16x4_t cospis1 = vget_high_s16(cospis); // cospi 4, 12, 20, 28 idct8x8_64_1d_bd8(cospis0, cospis1, c); idct8x8_64_1d_bd8(cospis0, cospis1, c); break; } case ADST_DCT: { const int16x8_t cospis = vld1q_s16(kCospi); const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24 const int16x4_t cospis1 = vget_high_s16(cospis); // cospi 4, 12, 20, 28 idct8x8_64_1d_bd8(cospis0, cospis1, c); transpose_s16_8x8(&c[0], &c[1], &c[2], &c[3], &c[4], &c[5], &c[6], &c[7]); iadst8(c); break; } case DCT_ADST: { const int16x8_t cospis = vld1q_s16(kCospi); const int16x4_t cospis0 = vget_low_s16(cospis); // cospi 0, 8, 16, 24 const int16x4_t cospis1 = vget_high_s16(cospis); // cospi 4, 12, 20, 28 transpose_s16_8x8(&c[0], &c[1], &c[2], &c[3], &c[4], &c[5], &c[6], &c[7]); iadst8(c); idct8x8_64_1d_bd8(cospis0, cospis1, c); break; } default: { transpose_s16_8x8(&c[0], &c[1], &c[2], &c[3], &c[4], &c[5], &c[6], &c[7]); iadst8(c); transpose_s16_8x8(&c[0], &c[1], &c[2], &c[3], &c[4], &c[5], &c[6], &c[7]); iadst8(c); break; } } c[0] = vrshrq_n_s16(c[0], 5); c[1] = vrshrq_n_s16(c[1], 5); c[2] = vrshrq_n_s16(c[2], 5); c[3] = vrshrq_n_s16(c[3], 5); c[4] = vrshrq_n_s16(c[4], 5); c[5] = vrshrq_n_s16(c[5], 5); c[6] = vrshrq_n_s16(c[6], 5); c[7] = vrshrq_n_s16(c[7], 5); } else { switch (tx_type) { case DCT_DCT: { const int32x4_t cospis0 = vld1q_s32(kCospi32); // cospi 0, 8, 16, 24 const int32x4_t cospis1 = vld1q_s32(kCospi32 + 4); // cospi 4, 12, 20, 28 if (bd == 10) { idct8x8_64_half1d_bd10(cospis0, cospis1, &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); idct8x8_64_half1d_bd10(cospis0, cospis1, &a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); idct8x8_64_half1d_bd10(cospis0, cospis1, &a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); idct8x8_64_half1d_bd10(cospis0, cospis1, &a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); } else { idct8x8_64_half1d_bd12(cospis0, cospis1, &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); idct8x8_64_half1d_bd12(cospis0, cospis1, &a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); idct8x8_64_half1d_bd12(cospis0, cospis1, &a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); idct8x8_64_half1d_bd12(cospis0, cospis1, &a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); } break; } case ADST_DCT: { const int32x4_t cospis0 = vld1q_s32(kCospi32); // cospi 0, 8, 16, 24 const int32x4_t cospis1 = vld1q_s32(kCospi32 + 4); // cospi 4, 12, 20, 28 idct8x8_64_half1d_bd12(cospis0, cospis1, &a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); idct8x8_64_half1d_bd12(cospis0, cospis1, &a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); transpose_s32_8x4(&a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); highbd_iadst8(&a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); transpose_s32_8x4(&a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); highbd_iadst8(&a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); break; } case DCT_ADST: { const int32x4_t cospis0 = vld1q_s32(kCospi32); // cospi 0, 8, 16, 24 const int32x4_t cospis1 = vld1q_s32(kCospi32 + 4); // cospi 4, 12, 20, 28 transpose_s32_8x4(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); highbd_iadst8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); transpose_s32_8x4(&a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); highbd_iadst8(&a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); idct8x8_64_half1d_bd12(cospis0, cospis1, &a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); idct8x8_64_half1d_bd12(cospis0, cospis1, &a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); break; } default: { assert(tx_type == ADST_ADST); transpose_s32_8x4(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); highbd_iadst8(&a[0], &a[1], &a[2], &a[3], &a[4], &a[5], &a[6], &a[7]); transpose_s32_8x4(&a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); highbd_iadst8(&a[8], &a[9], &a[10], &a[11], &a[12], &a[13], &a[14], &a[15]); transpose_s32_8x4(&a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); highbd_iadst8(&a[0], &a[8], &a[1], &a[9], &a[2], &a[10], &a[3], &a[11]); transpose_s32_8x4(&a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); highbd_iadst8(&a[4], &a[12], &a[5], &a[13], &a[6], &a[14], &a[7], &a[15]); break; } } c[0] = vcombine_s16(vrshrn_n_s32(a[0], 5), vrshrn_n_s32(a[4], 5)); c[1] = vcombine_s16(vrshrn_n_s32(a[8], 5), vrshrn_n_s32(a[12], 5)); c[2] = vcombine_s16(vrshrn_n_s32(a[1], 5), vrshrn_n_s32(a[5], 5)); c[3] = vcombine_s16(vrshrn_n_s32(a[9], 5), vrshrn_n_s32(a[13], 5)); c[4] = vcombine_s16(vrshrn_n_s32(a[2], 5), vrshrn_n_s32(a[6], 5)); c[5] = vcombine_s16(vrshrn_n_s32(a[10], 5), vrshrn_n_s32(a[14], 5)); c[6] = vcombine_s16(vrshrn_n_s32(a[3], 5), vrshrn_n_s32(a[7], 5)); c[7] = vcombine_s16(vrshrn_n_s32(a[11], 5), vrshrn_n_s32(a[15], 5)); } highbd_add8x8(c, dest, stride, bd); }