ref: 945ccfee59fe2d1bde5fc3f30845a6e0503bec59
dir: /vpx_dsp/arm/highbd_idct16x16_add_neon.c/
/*
* Copyright (c) 2017 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 "vpx_dsp/arm/idct_neon.h"
#include "vpx_dsp/inv_txfm.h"
static INLINE void highbd_idct16x16_add_wrap_low_8x2(const int64x2x2_t *const t,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int32x2x2_t t32[4];
t32[0].val[0] = vrshrn_n_s64(t[0].val[0], DCT_CONST_BITS);
t32[0].val[1] = vrshrn_n_s64(t[0].val[1], DCT_CONST_BITS);
t32[1].val[0] = vrshrn_n_s64(t[1].val[0], DCT_CONST_BITS);
t32[1].val[1] = vrshrn_n_s64(t[1].val[1], DCT_CONST_BITS);
t32[2].val[0] = vrshrn_n_s64(t[2].val[0], DCT_CONST_BITS);
t32[2].val[1] = vrshrn_n_s64(t[2].val[1], DCT_CONST_BITS);
t32[3].val[0] = vrshrn_n_s64(t[3].val[0], DCT_CONST_BITS);
t32[3].val[1] = vrshrn_n_s64(t[3].val[1], DCT_CONST_BITS);
d0->val[0] = vcombine_s32(t32[0].val[0], t32[0].val[1]);
d0->val[1] = vcombine_s32(t32[1].val[0], t32[1].val[1]);
d1->val[0] = vcombine_s32(t32[2].val[0], t32[2].val[1]);
d1->val[1] = vcombine_s32(t32[3].val[0], t32[3].val[1]);
}
static INLINE void highbd_idct_cospi_2_30(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_2_30_10_22,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_low_s32(cospi_2_30_10_22), 1);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_low_s32(cospi_2_30_10_22), 1);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_low_s32(cospi_2_30_10_22), 1);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_low_s32(cospi_2_30_10_22), 1);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_low_s32(cospi_2_30_10_22), 1);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_low_s32(cospi_2_30_10_22), 1);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_low_s32(cospi_2_30_10_22), 1);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_low_s32(cospi_2_30_10_22), 1);
t[0].val[0] = vmlsl_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_low_s32(cospi_2_30_10_22), 0);
t[0].val[1] = vmlsl_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_low_s32(cospi_2_30_10_22), 0);
t[1].val[0] = vmlsl_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_low_s32(cospi_2_30_10_22), 0);
t[1].val[1] = vmlsl_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_low_s32(cospi_2_30_10_22), 0);
t[2].val[0] = vmlal_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_low_s32(cospi_2_30_10_22), 0);
t[2].val[1] = vmlal_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_low_s32(cospi_2_30_10_22), 0);
t[3].val[0] = vmlal_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_low_s32(cospi_2_30_10_22), 0);
t[3].val[1] = vmlal_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_low_s32(cospi_2_30_10_22), 0);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_4_28(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_4_12_20N_28,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_high_s32(cospi_4_12_20N_28), 1);
t[0].val[0] = vmlsl_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[0].val[1] = vmlsl_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[1].val[0] = vmlsl_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[1].val[1] = vmlsl_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[2].val[0] = vmlal_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[2].val[1] = vmlal_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[3].val[0] = vmlal_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_low_s32(cospi_4_12_20N_28), 0);
t[3].val[1] = vmlal_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_low_s32(cospi_4_12_20N_28), 0);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_6_26(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_6_26_14_18N,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_low_s32(cospi_6_26_14_18N), 0);
t[0].val[0] = vmlal_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[0].val[1] = vmlal_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[1].val[0] = vmlal_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[1].val[1] = vmlal_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[2].val[0] = vmlsl_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[2].val[1] = vmlsl_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[3].val[0] = vmlsl_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_low_s32(cospi_6_26_14_18N), 1);
t[3].val[1] = vmlsl_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_low_s32(cospi_6_26_14_18N), 1);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_10_22(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_2_30_10_22,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_high_s32(cospi_2_30_10_22), 1);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_high_s32(cospi_2_30_10_22), 1);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_high_s32(cospi_2_30_10_22), 1);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_high_s32(cospi_2_30_10_22), 1);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_high_s32(cospi_2_30_10_22), 1);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_high_s32(cospi_2_30_10_22), 1);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_high_s32(cospi_2_30_10_22), 1);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_high_s32(cospi_2_30_10_22), 1);
t[0].val[0] = vmlsl_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_high_s32(cospi_2_30_10_22), 0);
t[0].val[1] = vmlsl_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_high_s32(cospi_2_30_10_22), 0);
t[1].val[0] = vmlsl_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_high_s32(cospi_2_30_10_22), 0);
t[1].val[1] = vmlsl_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_high_s32(cospi_2_30_10_22), 0);
t[2].val[0] = vmlal_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_high_s32(cospi_2_30_10_22), 0);
t[2].val[1] = vmlal_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_high_s32(cospi_2_30_10_22), 0);
t[3].val[0] = vmlal_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_high_s32(cospi_2_30_10_22), 0);
t[3].val[1] = vmlal_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_high_s32(cospi_2_30_10_22), 0);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_12_20(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_4_12_20N_28,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_low_s32(cospi_4_12_20N_28), 1);
t[0].val[0] = vmlal_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[0].val[1] = vmlal_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[1].val[0] = vmlal_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[1].val[1] = vmlal_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[2].val[0] = vmlsl_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[2].val[1] = vmlsl_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[3].val[0] = vmlsl_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_high_s32(cospi_4_12_20N_28), 0);
t[3].val[1] = vmlsl_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_high_s32(cospi_4_12_20N_28), 0);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_14_18(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_6_26_14_18N,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_high_s32(cospi_6_26_14_18N), 0);
t[0].val[0] = vmlal_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[0].val[1] = vmlal_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[1].val[0] = vmlal_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[1].val[1] = vmlal_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[2].val[0] = vmlsl_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[2].val[1] = vmlsl_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[3].val[0] = vmlsl_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_high_s32(cospi_6_26_14_18N), 1);
t[3].val[1] = vmlsl_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_high_s32(cospi_6_26_14_18N), 1);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_8_24_q_kernel(
const int32x4x2_t s0, const int32x4x2_t s1, const int32x4_t cospi_0_8_16_24,
int64x2x2_t *const t) {
t[0].val[0] = vmull_lane_s32(vget_low_s32(s0.val[0]),
vget_high_s32(cospi_0_8_16_24), 1);
t[0].val[1] = vmull_lane_s32(vget_high_s32(s0.val[0]),
vget_high_s32(cospi_0_8_16_24), 1);
t[1].val[0] = vmull_lane_s32(vget_low_s32(s0.val[1]),
vget_high_s32(cospi_0_8_16_24), 1);
t[1].val[1] = vmull_lane_s32(vget_high_s32(s0.val[1]),
vget_high_s32(cospi_0_8_16_24), 1);
t[2].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_high_s32(cospi_0_8_16_24), 1);
t[2].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_high_s32(cospi_0_8_16_24), 1);
t[3].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_high_s32(cospi_0_8_16_24), 1);
t[3].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_high_s32(cospi_0_8_16_24), 1);
t[0].val[0] = vmlsl_lane_s32(t[0].val[0], vget_low_s32(s1.val[0]),
vget_low_s32(cospi_0_8_16_24), 1);
t[0].val[1] = vmlsl_lane_s32(t[0].val[1], vget_high_s32(s1.val[0]),
vget_low_s32(cospi_0_8_16_24), 1);
t[1].val[0] = vmlsl_lane_s32(t[1].val[0], vget_low_s32(s1.val[1]),
vget_low_s32(cospi_0_8_16_24), 1);
t[1].val[1] = vmlsl_lane_s32(t[1].val[1], vget_high_s32(s1.val[1]),
vget_low_s32(cospi_0_8_16_24), 1);
t[2].val[0] = vmlal_lane_s32(t[2].val[0], vget_low_s32(s0.val[0]),
vget_low_s32(cospi_0_8_16_24), 1);
t[2].val[1] = vmlal_lane_s32(t[2].val[1], vget_high_s32(s0.val[0]),
vget_low_s32(cospi_0_8_16_24), 1);
t[3].val[0] = vmlal_lane_s32(t[3].val[0], vget_low_s32(s0.val[1]),
vget_low_s32(cospi_0_8_16_24), 1);
t[3].val[1] = vmlal_lane_s32(t[3].val[1], vget_high_s32(s0.val[1]),
vget_low_s32(cospi_0_8_16_24), 1);
}
static INLINE void highbd_idct_cospi_8_24_q(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_0_8_16_24,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
highbd_idct_cospi_8_24_q_kernel(s0, s1, cospi_0_8_16_24, t);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_8_24_neg_q(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_0_8_16_24,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[4];
highbd_idct_cospi_8_24_q_kernel(s0, s1, cospi_0_8_16_24, t);
t[2].val[0] = vsubq_s64(vdupq_n_s64(0), t[2].val[0]);
t[2].val[1] = vsubq_s64(vdupq_n_s64(0), t[2].val[1]);
t[3].val[0] = vsubq_s64(vdupq_n_s64(0), t[3].val[0]);
t[3].val[1] = vsubq_s64(vdupq_n_s64(0), t[3].val[1]);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct_cospi_16_16_q(const int32x4x2_t s0,
const int32x4x2_t s1,
const int32x4_t cospi_0_8_16_24,
int32x4x2_t *const d0,
int32x4x2_t *const d1) {
int64x2x2_t t[6];
t[4].val[0] = vmull_lane_s32(vget_low_s32(s1.val[0]),
vget_high_s32(cospi_0_8_16_24), 0);
t[4].val[1] = vmull_lane_s32(vget_high_s32(s1.val[0]),
vget_high_s32(cospi_0_8_16_24), 0);
t[5].val[0] = vmull_lane_s32(vget_low_s32(s1.val[1]),
vget_high_s32(cospi_0_8_16_24), 0);
t[5].val[1] = vmull_lane_s32(vget_high_s32(s1.val[1]),
vget_high_s32(cospi_0_8_16_24), 0);
t[0].val[0] = vmlsl_lane_s32(t[4].val[0], vget_low_s32(s0.val[0]),
vget_high_s32(cospi_0_8_16_24), 0);
t[0].val[1] = vmlsl_lane_s32(t[4].val[1], vget_high_s32(s0.val[0]),
vget_high_s32(cospi_0_8_16_24), 0);
t[1].val[0] = vmlsl_lane_s32(t[5].val[0], vget_low_s32(s0.val[1]),
vget_high_s32(cospi_0_8_16_24), 0);
t[1].val[1] = vmlsl_lane_s32(t[5].val[1], vget_high_s32(s0.val[1]),
vget_high_s32(cospi_0_8_16_24), 0);
t[2].val[0] = vmlal_lane_s32(t[4].val[0], vget_low_s32(s0.val[0]),
vget_high_s32(cospi_0_8_16_24), 0);
t[2].val[1] = vmlal_lane_s32(t[4].val[1], vget_high_s32(s0.val[0]),
vget_high_s32(cospi_0_8_16_24), 0);
t[3].val[0] = vmlal_lane_s32(t[5].val[0], vget_low_s32(s0.val[1]),
vget_high_s32(cospi_0_8_16_24), 0);
t[3].val[1] = vmlal_lane_s32(t[5].val[1], vget_high_s32(s0.val[1]),
vget_high_s32(cospi_0_8_16_24), 0);
highbd_idct16x16_add_wrap_low_8x2(t, d0, d1);
}
static INLINE void highbd_idct16x16_add_stage7(const int32x4x2_t *const step2,
int32x4x2_t *const out) {
out[0].val[0] = vaddq_s32(step2[0].val[0], step2[15].val[0]);
out[0].val[1] = vaddq_s32(step2[0].val[1], step2[15].val[1]);
out[1].val[0] = vaddq_s32(step2[1].val[0], step2[14].val[0]);
out[1].val[1] = vaddq_s32(step2[1].val[1], step2[14].val[1]);
out[2].val[0] = vaddq_s32(step2[2].val[0], step2[13].val[0]);
out[2].val[1] = vaddq_s32(step2[2].val[1], step2[13].val[1]);
out[3].val[0] = vaddq_s32(step2[3].val[0], step2[12].val[0]);
out[3].val[1] = vaddq_s32(step2[3].val[1], step2[12].val[1]);
out[4].val[0] = vaddq_s32(step2[4].val[0], step2[11].val[0]);
out[4].val[1] = vaddq_s32(step2[4].val[1], step2[11].val[1]);
out[5].val[0] = vaddq_s32(step2[5].val[0], step2[10].val[0]);
out[5].val[1] = vaddq_s32(step2[5].val[1], step2[10].val[1]);
out[6].val[0] = vaddq_s32(step2[6].val[0], step2[9].val[0]);
out[6].val[1] = vaddq_s32(step2[6].val[1], step2[9].val[1]);
out[7].val[0] = vaddq_s32(step2[7].val[0], step2[8].val[0]);
out[7].val[1] = vaddq_s32(step2[7].val[1], step2[8].val[1]);
out[8].val[0] = vsubq_s32(step2[7].val[0], step2[8].val[0]);
out[8].val[1] = vsubq_s32(step2[7].val[1], step2[8].val[1]);
out[9].val[0] = vsubq_s32(step2[6].val[0], step2[9].val[0]);
out[9].val[1] = vsubq_s32(step2[6].val[1], step2[9].val[1]);
out[10].val[0] = vsubq_s32(step2[5].val[0], step2[10].val[0]);
out[10].val[1] = vsubq_s32(step2[5].val[1], step2[10].val[1]);
out[11].val[0] = vsubq_s32(step2[4].val[0], step2[11].val[0]);
out[11].val[1] = vsubq_s32(step2[4].val[1], step2[11].val[1]);
out[12].val[0] = vsubq_s32(step2[3].val[0], step2[12].val[0]);
out[12].val[1] = vsubq_s32(step2[3].val[1], step2[12].val[1]);
out[13].val[0] = vsubq_s32(step2[2].val[0], step2[13].val[0]);
out[13].val[1] = vsubq_s32(step2[2].val[1], step2[13].val[1]);
out[14].val[0] = vsubq_s32(step2[1].val[0], step2[14].val[0]);
out[14].val[1] = vsubq_s32(step2[1].val[1], step2[14].val[1]);
out[15].val[0] = vsubq_s32(step2[0].val[0], step2[15].val[0]);
out[15].val[1] = vsubq_s32(step2[0].val[1], step2[15].val[1]);
}
static void highbd_idct16x16_256_add_half1d(const int32_t *input,
int32_t *output, uint16_t *dest,
const int stride, const int bd) {
const int32x4_t cospi_0_8_16_24 = vld1q_s32(kCospi32 + 0);
const int32x4_t cospi_4_12_20N_28 = vld1q_s32(kCospi32 + 4);
const int32x4_t cospi_2_30_10_22 = vld1q_s32(kCospi32 + 8);
const int32x4_t cospi_6_26_14_18N = vld1q_s32(kCospi32 + 12);
int32x4x2_t in[16], step1[16], step2[16], out[16];
// Load input (16x8)
in[0].val[0] = vld1q_s32(input);
in[0].val[1] = vld1q_s32(input + 4);
input += 8;
in[8].val[0] = vld1q_s32(input);
in[8].val[1] = vld1q_s32(input + 4);
input += 8;
in[1].val[0] = vld1q_s32(input);
in[1].val[1] = vld1q_s32(input + 4);
input += 8;
in[9].val[0] = vld1q_s32(input);
in[9].val[1] = vld1q_s32(input + 4);
input += 8;
in[2].val[0] = vld1q_s32(input);
in[2].val[1] = vld1q_s32(input + 4);
input += 8;
in[10].val[0] = vld1q_s32(input);
in[10].val[1] = vld1q_s32(input + 4);
input += 8;
in[3].val[0] = vld1q_s32(input);
in[3].val[1] = vld1q_s32(input + 4);
input += 8;
in[11].val[0] = vld1q_s32(input);
in[11].val[1] = vld1q_s32(input + 4);
input += 8;
in[4].val[0] = vld1q_s32(input);
in[4].val[1] = vld1q_s32(input + 4);
input += 8;
in[12].val[0] = vld1q_s32(input);
in[12].val[1] = vld1q_s32(input + 4);
input += 8;
in[5].val[0] = vld1q_s32(input);
in[5].val[1] = vld1q_s32(input + 4);
input += 8;
in[13].val[0] = vld1q_s32(input);
in[13].val[1] = vld1q_s32(input + 4);
input += 8;
in[6].val[0] = vld1q_s32(input);
in[6].val[1] = vld1q_s32(input + 4);
input += 8;
in[14].val[0] = vld1q_s32(input);
in[14].val[1] = vld1q_s32(input + 4);
input += 8;
in[7].val[0] = vld1q_s32(input);
in[7].val[1] = vld1q_s32(input + 4);
input += 8;
in[15].val[0] = vld1q_s32(input);
in[15].val[1] = vld1q_s32(input + 4);
// Transpose
transpose_s32_8x8(&in[0], &in[1], &in[2], &in[3], &in[4], &in[5], &in[6],
&in[7]);
transpose_s32_8x8(&in[8], &in[9], &in[10], &in[11], &in[12], &in[13], &in[14],
&in[15]);
// stage 1
step1[0] = in[0 / 2];
step1[1] = in[16 / 2];
step1[2] = in[8 / 2];
step1[3] = in[24 / 2];
step1[4] = in[4 / 2];
step1[5] = in[20 / 2];
step1[6] = in[12 / 2];
step1[7] = in[28 / 2];
step1[8] = in[2 / 2];
step1[9] = in[18 / 2];
step1[10] = in[10 / 2];
step1[11] = in[26 / 2];
step1[12] = in[6 / 2];
step1[13] = in[22 / 2];
step1[14] = in[14 / 2];
step1[15] = in[30 / 2];
// stage 2
step2[0] = step1[0];
step2[1] = step1[1];
step2[2] = step1[2];
step2[3] = step1[3];
step2[4] = step1[4];
step2[5] = step1[5];
step2[6] = step1[6];
step2[7] = step1[7];
highbd_idct_cospi_2_30(step1[8], step1[15], cospi_2_30_10_22, &step2[8],
&step2[15]);
highbd_idct_cospi_14_18(step1[9], step1[14], cospi_6_26_14_18N, &step2[9],
&step2[14]);
highbd_idct_cospi_10_22(step1[10], step1[13], cospi_2_30_10_22, &step2[10],
&step2[13]);
highbd_idct_cospi_6_26(step1[11], step1[12], cospi_6_26_14_18N, &step2[11],
&step2[12]);
// stage 3
step1[0] = step2[0];
step1[1] = step2[1];
step1[2] = step2[2];
step1[3] = step2[3];
highbd_idct_cospi_4_28(step2[4], step2[7], cospi_4_12_20N_28, &step1[4],
&step1[7]);
highbd_idct_cospi_12_20(step2[5], step2[6], cospi_4_12_20N_28, &step1[5],
&step1[6]);
step1[8].val[0] = vaddq_s32(step2[8].val[0], step2[9].val[0]);
step1[8].val[1] = vaddq_s32(step2[8].val[1], step2[9].val[1]);
step1[9].val[0] = vsubq_s32(step2[8].val[0], step2[9].val[0]);
step1[9].val[1] = vsubq_s32(step2[8].val[1], step2[9].val[1]);
step1[10].val[0] = vsubq_s32(step2[11].val[0], step2[10].val[0]);
step1[10].val[1] = vsubq_s32(step2[11].val[1], step2[10].val[1]);
step1[11].val[0] = vaddq_s32(step2[11].val[0], step2[10].val[0]);
step1[11].val[1] = vaddq_s32(step2[11].val[1], step2[10].val[1]);
step1[12].val[0] = vaddq_s32(step2[12].val[0], step2[13].val[0]);
step1[12].val[1] = vaddq_s32(step2[12].val[1], step2[13].val[1]);
step1[13].val[0] = vsubq_s32(step2[12].val[0], step2[13].val[0]);
step1[13].val[1] = vsubq_s32(step2[12].val[1], step2[13].val[1]);
step1[14].val[0] = vsubq_s32(step2[15].val[0], step2[14].val[0]);
step1[14].val[1] = vsubq_s32(step2[15].val[1], step2[14].val[1]);
step1[15].val[0] = vaddq_s32(step2[15].val[0], step2[14].val[0]);
step1[15].val[1] = vaddq_s32(step2[15].val[1], step2[14].val[1]);
// stage 4
highbd_idct_cospi_16_16_q(step1[1], step1[0], cospi_0_8_16_24, &step2[1],
&step2[0]);
highbd_idct_cospi_8_24_q(step1[2], step1[3], cospi_0_8_16_24, &step2[2],
&step2[3]);
step2[4].val[0] = vaddq_s32(step1[4].val[0], step1[5].val[0]);
step2[4].val[1] = vaddq_s32(step1[4].val[1], step1[5].val[1]);
step2[5].val[0] = vsubq_s32(step1[4].val[0], step1[5].val[0]);
step2[5].val[1] = vsubq_s32(step1[4].val[1], step1[5].val[1]);
step2[6].val[0] = vsubq_s32(step1[7].val[0], step1[6].val[0]);
step2[6].val[1] = vsubq_s32(step1[7].val[1], step1[6].val[1]);
step2[7].val[0] = vaddq_s32(step1[7].val[0], step1[6].val[0]);
step2[7].val[1] = vaddq_s32(step1[7].val[1], step1[6].val[1]);
step2[8] = step1[8];
highbd_idct_cospi_8_24_q(step1[14], step1[9], cospi_0_8_16_24, &step2[9],
&step2[14]);
highbd_idct_cospi_8_24_neg_q(step1[13], step1[10], cospi_0_8_16_24,
&step2[13], &step2[10]);
step2[11] = step1[11];
step2[12] = step1[12];
step2[15] = step1[15];
// stage 5
step1[0].val[0] = vaddq_s32(step2[0].val[0], step2[3].val[0]);
step1[0].val[1] = vaddq_s32(step2[0].val[1], step2[3].val[1]);
step1[1].val[0] = vaddq_s32(step2[1].val[0], step2[2].val[0]);
step1[1].val[1] = vaddq_s32(step2[1].val[1], step2[2].val[1]);
step1[2].val[0] = vsubq_s32(step2[1].val[0], step2[2].val[0]);
step1[2].val[1] = vsubq_s32(step2[1].val[1], step2[2].val[1]);
step1[3].val[0] = vsubq_s32(step2[0].val[0], step2[3].val[0]);
step1[3].val[1] = vsubq_s32(step2[0].val[1], step2[3].val[1]);
step1[4] = step2[4];
highbd_idct_cospi_16_16_q(step2[5], step2[6], cospi_0_8_16_24, &step1[5],
&step1[6]);
step1[7] = step2[7];
step1[8].val[0] = vaddq_s32(step2[8].val[0], step2[11].val[0]);
step1[8].val[1] = vaddq_s32(step2[8].val[1], step2[11].val[1]);
step1[9].val[0] = vaddq_s32(step2[9].val[0], step2[10].val[0]);
step1[9].val[1] = vaddq_s32(step2[9].val[1], step2[10].val[1]);
step1[10].val[0] = vsubq_s32(step2[9].val[0], step2[10].val[0]);
step1[10].val[1] = vsubq_s32(step2[9].val[1], step2[10].val[1]);
step1[11].val[0] = vsubq_s32(step2[8].val[0], step2[11].val[0]);
step1[11].val[1] = vsubq_s32(step2[8].val[1], step2[11].val[1]);
step1[12].val[0] = vsubq_s32(step2[15].val[0], step2[12].val[0]);
step1[12].val[1] = vsubq_s32(step2[15].val[1], step2[12].val[1]);
step1[13].val[0] = vsubq_s32(step2[14].val[0], step2[13].val[0]);
step1[13].val[1] = vsubq_s32(step2[14].val[1], step2[13].val[1]);
step1[14].val[0] = vaddq_s32(step2[14].val[0], step2[13].val[0]);
step1[14].val[1] = vaddq_s32(step2[14].val[1], step2[13].val[1]);
step1[15].val[0] = vaddq_s32(step2[15].val[0], step2[12].val[0]);
step1[15].val[1] = vaddq_s32(step2[15].val[1], step2[12].val[1]);
// stage 6
step2[0].val[0] = vaddq_s32(step1[0].val[0], step1[7].val[0]);
step2[0].val[1] = vaddq_s32(step1[0].val[1], step1[7].val[1]);
step2[1].val[0] = vaddq_s32(step1[1].val[0], step1[6].val[0]);
step2[1].val[1] = vaddq_s32(step1[1].val[1], step1[6].val[1]);
step2[2].val[0] = vaddq_s32(step1[2].val[0], step1[5].val[0]);
step2[2].val[1] = vaddq_s32(step1[2].val[1], step1[5].val[1]);
step2[3].val[0] = vaddq_s32(step1[3].val[0], step1[4].val[0]);
step2[3].val[1] = vaddq_s32(step1[3].val[1], step1[4].val[1]);
step2[4].val[0] = vsubq_s32(step1[3].val[0], step1[4].val[0]);
step2[4].val[1] = vsubq_s32(step1[3].val[1], step1[4].val[1]);
step2[5].val[0] = vsubq_s32(step1[2].val[0], step1[5].val[0]);
step2[5].val[1] = vsubq_s32(step1[2].val[1], step1[5].val[1]);
step2[6].val[0] = vsubq_s32(step1[1].val[0], step1[6].val[0]);
step2[6].val[1] = vsubq_s32(step1[1].val[1], step1[6].val[1]);
step2[7].val[0] = vsubq_s32(step1[0].val[0], step1[7].val[0]);
step2[7].val[1] = vsubq_s32(step1[0].val[1], step1[7].val[1]);
highbd_idct_cospi_16_16_q(step1[10], step1[13], cospi_0_8_16_24, &step2[10],
&step2[13]);
highbd_idct_cospi_16_16_q(step1[11], step1[12], cospi_0_8_16_24, &step2[11],
&step2[12]);
step2[8] = step1[8];
step2[9] = step1[9];
step2[14] = step1[14];
step2[15] = step1[15];
// stage 7
highbd_idct16x16_add_stage7(step2, out);
if (output) {
// pass 1: save the result into output
vst1q_s32(output + 0, out[0].val[0]);
vst1q_s32(output + 4, out[0].val[1]);
output += 16;
vst1q_s32(output + 0, out[1].val[0]);
vst1q_s32(output + 4, out[1].val[1]);
output += 16;
vst1q_s32(output + 0, out[2].val[0]);
vst1q_s32(output + 4, out[2].val[1]);
output += 16;
vst1q_s32(output + 0, out[3].val[0]);
vst1q_s32(output + 4, out[3].val[1]);
output += 16;
vst1q_s32(output + 0, out[4].val[0]);
vst1q_s32(output + 4, out[4].val[1]);
output += 16;
vst1q_s32(output + 0, out[5].val[0]);
vst1q_s32(output + 4, out[5].val[1]);
output += 16;
vst1q_s32(output + 0, out[6].val[0]);
vst1q_s32(output + 4, out[6].val[1]);
output += 16;
vst1q_s32(output + 0, out[7].val[0]);
vst1q_s32(output + 4, out[7].val[1]);
output += 16;
vst1q_s32(output + 0, out[8].val[0]);
vst1q_s32(output + 4, out[8].val[1]);
output += 16;
vst1q_s32(output + 0, out[9].val[0]);
vst1q_s32(output + 4, out[9].val[1]);
output += 16;
vst1q_s32(output + 0, out[10].val[0]);
vst1q_s32(output + 4, out[10].val[1]);
output += 16;
vst1q_s32(output + 0, out[11].val[0]);
vst1q_s32(output + 4, out[11].val[1]);
output += 16;
vst1q_s32(output + 0, out[12].val[0]);
vst1q_s32(output + 4, out[12].val[1]);
output += 16;
vst1q_s32(output + 0, out[13].val[0]);
vst1q_s32(output + 4, out[13].val[1]);
output += 16;
vst1q_s32(output + 0, out[14].val[0]);
vst1q_s32(output + 4, out[14].val[1]);
output += 16;
vst1q_s32(output + 0, out[15].val[0]);
vst1q_s32(output + 4, out[15].val[1]);
} else {
// pass 2: add the result to dest.
const int16x8_t max = vdupq_n_s16((1 << bd) - 1);
int16x8_t o[16];
o[0] = vcombine_s16(vrshrn_n_s32(out[0].val[0], 6),
vrshrn_n_s32(out[0].val[1], 6));
o[1] = vcombine_s16(vrshrn_n_s32(out[1].val[0], 6),
vrshrn_n_s32(out[1].val[1], 6));
o[2] = vcombine_s16(vrshrn_n_s32(out[2].val[0], 6),
vrshrn_n_s32(out[2].val[1], 6));
o[3] = vcombine_s16(vrshrn_n_s32(out[3].val[0], 6),
vrshrn_n_s32(out[3].val[1], 6));
o[4] = vcombine_s16(vrshrn_n_s32(out[4].val[0], 6),
vrshrn_n_s32(out[4].val[1], 6));
o[5] = vcombine_s16(vrshrn_n_s32(out[5].val[0], 6),
vrshrn_n_s32(out[5].val[1], 6));
o[6] = vcombine_s16(vrshrn_n_s32(out[6].val[0], 6),
vrshrn_n_s32(out[6].val[1], 6));
o[7] = vcombine_s16(vrshrn_n_s32(out[7].val[0], 6),
vrshrn_n_s32(out[7].val[1], 6));
o[8] = vcombine_s16(vrshrn_n_s32(out[8].val[0], 6),
vrshrn_n_s32(out[8].val[1], 6));
o[9] = vcombine_s16(vrshrn_n_s32(out[9].val[0], 6),
vrshrn_n_s32(out[9].val[1], 6));
o[10] = vcombine_s16(vrshrn_n_s32(out[10].val[0], 6),
vrshrn_n_s32(out[10].val[1], 6));
o[11] = vcombine_s16(vrshrn_n_s32(out[11].val[0], 6),
vrshrn_n_s32(out[11].val[1], 6));
o[12] = vcombine_s16(vrshrn_n_s32(out[12].val[0], 6),
vrshrn_n_s32(out[12].val[1], 6));
o[13] = vcombine_s16(vrshrn_n_s32(out[13].val[0], 6),
vrshrn_n_s32(out[13].val[1], 6));
o[14] = vcombine_s16(vrshrn_n_s32(out[14].val[0], 6),
vrshrn_n_s32(out[14].val[1], 6));
o[15] = vcombine_s16(vrshrn_n_s32(out[15].val[0], 6),
vrshrn_n_s32(out[15].val[1], 6));
highbd_idct16x16_add8x1(o[0], max, &dest, stride);
highbd_idct16x16_add8x1(o[1], max, &dest, stride);
highbd_idct16x16_add8x1(o[2], max, &dest, stride);
highbd_idct16x16_add8x1(o[3], max, &dest, stride);
highbd_idct16x16_add8x1(o[4], max, &dest, stride);
highbd_idct16x16_add8x1(o[5], max, &dest, stride);
highbd_idct16x16_add8x1(o[6], max, &dest, stride);
highbd_idct16x16_add8x1(o[7], max, &dest, stride);
highbd_idct16x16_add8x1(o[8], max, &dest, stride);
highbd_idct16x16_add8x1(o[9], max, &dest, stride);
highbd_idct16x16_add8x1(o[10], max, &dest, stride);
highbd_idct16x16_add8x1(o[11], max, &dest, stride);
highbd_idct16x16_add8x1(o[12], max, &dest, stride);
highbd_idct16x16_add8x1(o[13], max, &dest, stride);
highbd_idct16x16_add8x1(o[14], max, &dest, stride);
highbd_idct16x16_add8x1(o[15], max, &dest, stride);
}
}
void vpx_highbd_idct16x16_256_add_neon(const tran_low_t *input, uint8_t *dest8,
int stride, int bd) {
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
if (bd == 8) {
int16_t row_idct_output[16 * 16];
// pass 1
// Parallel idct on the upper 8 rows
idct16x16_256_add_half1d(input, row_idct_output, dest, stride, 1);
// Parallel idct on the lower 8 rows
idct16x16_256_add_half1d(input + 8 * 16, row_idct_output + 8, dest, stride,
1);
// pass 2
// Parallel idct to get the left 8 columns
idct16x16_256_add_half1d(row_idct_output, NULL, dest, stride, 1);
// Parallel idct to get the right 8 columns
idct16x16_256_add_half1d(row_idct_output + 8 * 16, NULL, dest + 8, stride,
1);
} else {
int32_t row_idct_output[16 * 16];
// pass 1
// Parallel idct on the upper 8 rows
highbd_idct16x16_256_add_half1d(input, row_idct_output, dest, stride, bd);
// Parallel idct on the lower 8 rows
highbd_idct16x16_256_add_half1d(input + 8 * 16, row_idct_output + 8, dest,
stride, bd);
// pass 2
// Parallel idct to get the left 8 columns
highbd_idct16x16_256_add_half1d(row_idct_output, NULL, dest, stride, bd);
// Parallel idct to get the right 8 columns
highbd_idct16x16_256_add_half1d(row_idct_output + 8 * 16, NULL, dest + 8,
stride, bd);
}
}
static INLINE void highbd_idct16x16_1_add_pos_kernel(uint16_t **dest,
const int stride,
const int16x8_t res,
const int16x8_t max) {
const uint16x8_t a0 = vld1q_u16(*dest + 0);
const uint16x8_t a1 = vld1q_u16(*dest + 8);
const int16x8_t b0 = vaddq_s16(res, vreinterpretq_s16_u16(a0));
const int16x8_t b1 = vaddq_s16(res, vreinterpretq_s16_u16(a1));
const int16x8_t c0 = vminq_s16(b0, max);
const int16x8_t c1 = vminq_s16(b1, max);
vst1q_u16(*dest + 0, vreinterpretq_u16_s16(c0));
vst1q_u16(*dest + 8, vreinterpretq_u16_s16(c1));
*dest += stride;
}
static INLINE void highbd_idct16x16_1_add_neg_kernel(uint16_t **dest,
const int stride,
const int16x8_t res) {
const uint16x8_t a0 = vld1q_u16(*dest + 0);
const uint16x8_t a1 = vld1q_u16(*dest + 8);
const int16x8_t b0 = vaddq_s16(res, vreinterpretq_s16_u16(a0));
const int16x8_t b1 = vaddq_s16(res, vreinterpretq_s16_u16(a1));
const uint16x8_t c0 = vqshluq_n_s16(b0, 0);
const uint16x8_t c1 = vqshluq_n_s16(b1, 0);
vst1q_u16(*dest + 0, c0);
vst1q_u16(*dest + 8, c1);
*dest += stride;
}
void vpx_highbd_idct16x16_1_add_neon(const tran_low_t *input, uint8_t *dest8,
int stride, int bd) {
const tran_low_t out0 =
HIGHBD_WRAPLOW(dct_const_round_shift(input[0] * cospi_16_64), bd);
const tran_low_t out1 =
HIGHBD_WRAPLOW(dct_const_round_shift(out0 * cospi_16_64), bd);
const int16_t a1 = ROUND_POWER_OF_TWO(out1, 6);
const int16x8_t dc = vdupq_n_s16(a1);
uint16_t *dest = CONVERT_TO_SHORTPTR(dest8);
int i;
if (a1 >= 0) {
const int16x8_t max = vdupq_n_s16((1 << bd) - 1);
for (i = 0; i < 4; ++i) {
highbd_idct16x16_1_add_pos_kernel(&dest, stride, dc, max);
highbd_idct16x16_1_add_pos_kernel(&dest, stride, dc, max);
highbd_idct16x16_1_add_pos_kernel(&dest, stride, dc, max);
highbd_idct16x16_1_add_pos_kernel(&dest, stride, dc, max);
}
} else {
for (i = 0; i < 4; ++i) {
highbd_idct16x16_1_add_neg_kernel(&dest, stride, dc);
highbd_idct16x16_1_add_neg_kernel(&dest, stride, dc);
highbd_idct16x16_1_add_neg_kernel(&dest, stride, dc);
highbd_idct16x16_1_add_neg_kernel(&dest, stride, dc);
}
}
}