ref: 1e2cfa3f0f75c971ccceb9be0e818b207c86303b
dir: /vpx_dsp/ppc/inv_txfm_vsx.c/
/*
* Copyright (c) 2015 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 <math.h>
#include <stdlib.h>
#include <string.h>
#include "vpx_dsp/ppc/bitdepth_conversion_vsx.h"
#include "vpx_dsp/ppc/types_vsx.h"
#include "vpx_dsp/ppc/inv_txfm_vsx.h"
#include "./vpx_dsp_rtcd.h"
#include "vpx_dsp/inv_txfm.h"
static const int16x8_t cospi1_v = { 16364, 16364, 16364, 16364,
16364, 16364, 16364, 16364 };
static const int16x8_t cospi1m_v = { -16364, -16364, -16364, -16364,
-16364, -16364, -16364, -16364 };
static const int16x8_t cospi2_v = { 16305, 16305, 16305, 16305,
16305, 16305, 16305, 16305 };
static const int16x8_t cospi2m_v = { -16305, -16305, -16305, -16305,
-16305, -16305, -16305, -16305 };
static const int16x8_t cospi3_v = { 16207, 16207, 16207, 16207,
16207, 16207, 16207, 16207 };
static const int16x8_t cospi4_v = { 16069, 16069, 16069, 16069,
16069, 16069, 16069, 16069 };
static const int16x8_t cospi4m_v = { -16069, -16069, -16069, -16069,
-16069, -16069, -16069, -16069 };
static const int16x8_t cospi5_v = { 15893, 15893, 15893, 15893,
15893, 15893, 15893, 15893 };
static const int16x8_t cospi5m_v = { -15893, -15893, -15893, -15893,
-15893, -15893, -15893, -15893 };
static const int16x8_t cospi6_v = { 15679, 15679, 15679, 15679,
15679, 15679, 15679, 15679 };
static const int16x8_t cospi7_v = { 15426, 15426, 15426, 15426,
15426, 15426, 15426, 15426 };
static const int16x8_t cospi8_v = { 15137, 15137, 15137, 15137,
15137, 15137, 15137, 15137 };
static const int16x8_t cospi8m_v = { -15137, -15137, -15137, -15137,
-15137, -15137, -15137, -15137 };
static const int16x8_t cospi9_v = { 14811, 14811, 14811, 14811,
14811, 14811, 14811, 14811 };
static const int16x8_t cospi9m_v = { -14811, -14811, -14811, -14811,
-14811, -14811, -14811, -14811 };
static const int16x8_t cospi10_v = { 14449, 14449, 14449, 14449,
14449, 14449, 14449, 14449 };
static const int16x8_t cospi10m_v = { -14449, -14449, -14449, -14449,
-14449, -14449, -14449, -14449 };
static const int16x8_t cospi11_v = { 14053, 14053, 14053, 14053,
14053, 14053, 14053, 14053 };
static const int16x8_t cospi12_v = { 13623, 13623, 13623, 13623,
13623, 13623, 13623, 13623 };
static const int16x8_t cospi12m_v = { -13623, -13623, -13623, -13623,
-13623, -13623, -13623, -13623 };
static const int16x8_t cospi13_v = { 13160, 13160, 13160, 13160,
13160, 13160, 13160, 13160 };
static const int16x8_t cospi13m_v = { -13160, -13160, -13160, -13160,
-13160, -13160, -13160, -13160 };
static const int16x8_t cospi14_v = { 12665, 12665, 12665, 12665,
12665, 12665, 12665, 12665 };
static const int16x8_t cospi15_v = { 12140, 12140, 12140, 12140,
12140, 12140, 12140, 12140 };
static const int16x8_t cospi16_v = { 11585, 11585, 11585, 11585,
11585, 11585, 11585, 11585 };
static const int16x8_t cospi16m_v = { -11585, -11585, -11585, -11585,
-11585, -11585, -11585, -11585 };
static const int16x8_t cospi17_v = { 11003, 11003, 11003, 11003,
11003, 11003, 11003, 11003 };
static const int16x8_t cospi17m_v = { -11003, -11003, -11003, -11003,
-11003, -11003, -11003, -11003 };
static const int16x8_t cospi18_v = { 10394, 10394, 10394, 10394,
10394, 10394, 10394, 10394 };
static const int16x8_t cospi18m_v = { -10394, -10394, -10394, -10394,
-10394, -10394, -10394, -10394 };
static const int16x8_t cospi19_v = { 9760, 9760, 9760, 9760,
9760, 9760, 9760, 9760 };
static const int16x8_t cospi20_v = { 9102, 9102, 9102, 9102,
9102, 9102, 9102, 9102 };
static const int16x8_t cospi20m_v = { -9102, -9102, -9102, -9102,
-9102, -9102, -9102, -9102 };
static const int16x8_t cospi21_v = { 8423, 8423, 8423, 8423,
8423, 8423, 8423, 8423 };
static const int16x8_t cospi21m_v = { -8423, -8423, -8423, -8423,
-8423, -8423, -8423, -8423 };
static const int16x8_t cospi22_v = { 7723, 7723, 7723, 7723,
7723, 7723, 7723, 7723 };
static const int16x8_t cospi23_v = { 7005, 7005, 7005, 7005,
7005, 7005, 7005, 7005 };
static const int16x8_t cospi24_v = { 6270, 6270, 6270, 6270,
6270, 6270, 6270, 6270 };
static const int16x8_t cospi24m_v = { -6270, -6270, -6270, -6270,
-6270, -6270, -6270, -6270 };
static const int16x8_t cospi25_v = { 5520, 5520, 5520, 5520,
5520, 5520, 5520, 5520 };
static const int16x8_t cospi25m_v = { -5520, -5520, -5520, -5520,
-5520, -5520, -5520, -5520 };
static const int16x8_t cospi26_v = { 4756, 4756, 4756, 4756,
4756, 4756, 4756, 4756 };
static const int16x8_t cospi26m_v = { -4756, -4756, -4756, -4756,
-4756, -4756, -4756, -4756 };
static const int16x8_t cospi27_v = { 3981, 3981, 3981, 3981,
3981, 3981, 3981, 3981 };
static const int16x8_t cospi28_v = { 3196, 3196, 3196, 3196,
3196, 3196, 3196, 3196 };
static const int16x8_t cospi28m_v = { -3196, -3196, -3196, -3196,
-3196, -3196, -3196, -3196 };
static const int16x8_t cospi29_v = { 2404, 2404, 2404, 2404,
2404, 2404, 2404, 2404 };
static const int16x8_t cospi29m_v = { -2404, -2404, -2404, -2404,
-2404, -2404, -2404, -2404 };
static const int16x8_t cospi30_v = { 1606, 1606, 1606, 1606,
1606, 1606, 1606, 1606 };
static const int16x8_t cospi31_v = { 804, 804, 804, 804, 804, 804, 804, 804 };
static const int16x8_t sinpi_1_9_v = { 5283, 5283, 5283, 5283,
5283, 5283, 5283, 5283 };
static const int16x8_t sinpi_2_9_v = { 9929, 9929, 9929, 9929,
9929, 9929, 9929, 9929 };
static const int16x8_t sinpi_3_9_v = { 13377, 13377, 13377, 13377,
13377, 13377, 13377, 13377 };
static const int16x8_t sinpi_4_9_v = { 15212, 15212, 15212, 15212,
15212, 15212, 15212, 15212 };
static uint8x16_t tr8_mask0 = {
0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7,
0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17
};
static uint8x16_t tr8_mask1 = {
0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF,
0x18, 0x19, 0x1A, 0x1B, 0x1C, 0x1D, 0x1E, 0x1F
};
#define ROUND_SHIFT_INIT \
const int32x4_t shift = vec_sl(vec_splat_s32(1), vec_splat_u32(13)); \
const uint32x4_t shift14 = vec_splat_u32(14);
#define DCT_CONST_ROUND_SHIFT(vec) vec = vec_sra(vec_add(vec, shift), shift14);
#define PIXEL_ADD_INIT \
int16x8_t add8 = vec_splat_s16(8); \
uint16x8_t shift4 = vec_splat_u16(4);
#define PIXEL_ADD4(out, in) out = vec_sra(vec_add(in, add8), shift4);
#define IDCT4(in0, in1, out0, out1) \
t0 = vec_add(in0, in1); \
t1 = vec_sub(in0, in1); \
tmp16_0 = vec_mergeh(t0, t1); \
temp1 = vec_sra(vec_add(vec_mule(tmp16_0, cospi16_v), shift), shift14); \
temp2 = vec_sra(vec_add(vec_mulo(tmp16_0, cospi16_v), shift), shift14); \
\
tmp16_0 = vec_mergel(in0, in1); \
temp3 = vec_sub(vec_mule(tmp16_0, cospi24_v), vec_mulo(tmp16_0, cospi8_v)); \
DCT_CONST_ROUND_SHIFT(temp3); \
temp4 = vec_add(vec_mule(tmp16_0, cospi8_v), vec_mulo(tmp16_0, cospi24_v)); \
DCT_CONST_ROUND_SHIFT(temp4); \
\
step0 = vec_packs(temp1, temp2); \
step1 = vec_packs(temp4, temp3); \
out0 = vec_add(step0, step1); \
out1 = vec_sub(step0, step1); \
out1 = vec_perm(out1, out1, mask0);
#define PACK_STORE(v0, v1) \
tmp16_0 = vec_add(vec_perm(d_u0, d_u1, tr8_mask0), v0); \
tmp16_1 = vec_add(vec_perm(d_u2, d_u3, tr8_mask0), v1); \
output_v = vec_packsu(tmp16_0, tmp16_1); \
\
vec_vsx_st(output_v, 0, tmp_dest); \
for (i = 0; i < 4; i++) \
for (j = 0; j < 4; j++) dest[j * stride + i] = tmp_dest[j * 4 + i];
void vpx_round_store4x4_vsx(int16x8_t *in, int16x8_t *out, uint8_t *dest,
int stride) {
int i, j;
uint8x16_t dest0 = vec_vsx_ld(0, dest);
uint8x16_t dest1 = vec_vsx_ld(stride, dest);
uint8x16_t dest2 = vec_vsx_ld(2 * stride, dest);
uint8x16_t dest3 = vec_vsx_ld(3 * stride, dest);
uint8x16_t zerov = vec_splat_u8(0);
int16x8_t d_u0 = (int16x8_t)vec_mergeh(dest0, zerov);
int16x8_t d_u1 = (int16x8_t)vec_mergeh(dest1, zerov);
int16x8_t d_u2 = (int16x8_t)vec_mergeh(dest2, zerov);
int16x8_t d_u3 = (int16x8_t)vec_mergeh(dest3, zerov);
int16x8_t tmp16_0, tmp16_1;
uint8x16_t output_v;
uint8_t tmp_dest[16];
PIXEL_ADD_INIT;
PIXEL_ADD4(out[0], in[0]);
PIXEL_ADD4(out[1], in[1]);
PACK_STORE(out[0], out[1]);
}
void vpx_idct4_vsx(int16x8_t *in, int16x8_t *out) {
int32x4_t temp1, temp2, temp3, temp4;
int16x8_t step0, step1, tmp16_0;
uint8x16_t mask0 = { 0x8, 0x9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF,
0x0, 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 };
int16x8_t t0 = vec_mergeh(in[0], in[1]);
int16x8_t t1 = vec_mergel(in[0], in[1]);
ROUND_SHIFT_INIT
in[0] = vec_mergeh(t0, t1);
in[1] = vec_mergel(t0, t1);
IDCT4(in[0], in[1], out[0], out[1]);
}
void vpx_idct4x4_16_add_vsx(const tran_low_t *input, uint8_t *dest,
int stride) {
int16x8_t in[2], out[2];
in[0] = load_tran_low(0, input);
in[1] = load_tran_low(8 * sizeof(*input), input);
// Rows
vpx_idct4_vsx(in, out);
// Columns
vpx_idct4_vsx(out, in);
vpx_round_store4x4_vsx(in, out, dest, stride);
}
#define TRANSPOSE8x8(in0, in1, in2, in3, in4, in5, in6, in7, out0, out1, out2, \
out3, out4, out5, out6, out7) \
out0 = vec_mergeh(in0, in1); \
out1 = vec_mergel(in0, in1); \
out2 = vec_mergeh(in2, in3); \
out3 = vec_mergel(in2, in3); \
out4 = vec_mergeh(in4, in5); \
out5 = vec_mergel(in4, in5); \
out6 = vec_mergeh(in6, in7); \
out7 = vec_mergel(in6, in7); \
in0 = (int16x8_t)vec_mergeh((int32x4_t)out0, (int32x4_t)out2); \
in1 = (int16x8_t)vec_mergel((int32x4_t)out0, (int32x4_t)out2); \
in2 = (int16x8_t)vec_mergeh((int32x4_t)out1, (int32x4_t)out3); \
in3 = (int16x8_t)vec_mergel((int32x4_t)out1, (int32x4_t)out3); \
in4 = (int16x8_t)vec_mergeh((int32x4_t)out4, (int32x4_t)out6); \
in5 = (int16x8_t)vec_mergel((int32x4_t)out4, (int32x4_t)out6); \
in6 = (int16x8_t)vec_mergeh((int32x4_t)out5, (int32x4_t)out7); \
in7 = (int16x8_t)vec_mergel((int32x4_t)out5, (int32x4_t)out7); \
out0 = vec_perm(in0, in4, tr8_mask0); \
out1 = vec_perm(in0, in4, tr8_mask1); \
out2 = vec_perm(in1, in5, tr8_mask0); \
out3 = vec_perm(in1, in5, tr8_mask1); \
out4 = vec_perm(in2, in6, tr8_mask0); \
out5 = vec_perm(in2, in6, tr8_mask1); \
out6 = vec_perm(in3, in7, tr8_mask0); \
out7 = vec_perm(in3, in7, tr8_mask1);
/* for the: temp1 = step[x] * cospi_q - step[y] * cospi_z
* temp2 = step[x] * cospi_z + step[y] * cospi_q */
#define STEP8_0(inpt0, inpt1, outpt0, outpt1, cospi0, cospi1) \
tmp16_0 = vec_mergeh(inpt0, inpt1); \
tmp16_1 = vec_mergel(inpt0, inpt1); \
temp10 = vec_sub(vec_mule(tmp16_0, cospi0), vec_mulo(tmp16_0, cospi1)); \
temp11 = vec_sub(vec_mule(tmp16_1, cospi0), vec_mulo(tmp16_1, cospi1)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt0 = vec_packs(temp10, temp11); \
temp10 = vec_add(vec_mule(tmp16_0, cospi1), vec_mulo(tmp16_0, cospi0)); \
temp11 = vec_add(vec_mule(tmp16_1, cospi1), vec_mulo(tmp16_1, cospi0)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt1 = vec_packs(temp10, temp11);
#define STEP8_1(inpt0, inpt1, outpt0, outpt1, cospi) \
tmp16_2 = vec_sub(inpt0, inpt1); \
tmp16_3 = vec_add(inpt0, inpt1); \
tmp16_0 = vec_mergeh(tmp16_2, tmp16_3); \
tmp16_1 = vec_mergel(tmp16_2, tmp16_3); \
temp10 = vec_mule(tmp16_0, cospi); \
temp11 = vec_mule(tmp16_1, cospi); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt0 = vec_packs(temp10, temp11); \
temp10 = vec_mulo(tmp16_0, cospi); \
temp11 = vec_mulo(tmp16_1, cospi); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt1 = vec_packs(temp10, temp11);
#define IDCT8(in0, in1, in2, in3, in4, in5, in6, in7) \
/* stage 1 */ \
step0 = in0; \
step2 = in4; \
step1 = in2; \
step3 = in6; \
\
STEP8_0(in1, in7, step4, step7, cospi28_v, cospi4_v); \
STEP8_0(in5, in3, step5, step6, cospi12_v, cospi20_v); \
\
/* stage 2 */ \
STEP8_1(step0, step2, in1, in0, cospi16_v); \
STEP8_0(step1, step3, in2, in3, cospi24_v, cospi8_v); \
in4 = vec_add(step4, step5); \
in5 = vec_sub(step4, step5); \
in6 = vec_sub(step7, step6); \
in7 = vec_add(step6, step7); \
\
/* stage 3 */ \
step0 = vec_add(in0, in3); \
step1 = vec_add(in1, in2); \
step2 = vec_sub(in1, in2); \
step3 = vec_sub(in0, in3); \
step4 = in4; \
STEP8_1(in6, in5, step5, step6, cospi16_v); \
step7 = in7; \
\
/* stage 4 */ \
in0 = vec_add(step0, step7); \
in1 = vec_add(step1, step6); \
in2 = vec_add(step2, step5); \
in3 = vec_add(step3, step4); \
in4 = vec_sub(step3, step4); \
in5 = vec_sub(step2, step5); \
in6 = vec_sub(step1, step6); \
in7 = vec_sub(step0, step7);
#define PIXEL_ADD(in, out, add, shiftx) \
out = vec_add(vec_sra(vec_add(in, add), shiftx), out);
void vpx_idct8_vsx(int16x8_t *in, int16x8_t *out) {
int16x8_t step0, step1, step2, step3, step4, step5, step6, step7;
int16x8_t tmp16_0, tmp16_1, tmp16_2, tmp16_3;
int32x4_t temp10, temp11;
ROUND_SHIFT_INIT;
TRANSPOSE8x8(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]);
IDCT8(out[0], out[1], out[2], out[3], out[4], out[5], out[6], out[7]);
}
void vpx_round_store8x8_vsx(int16x8_t *in, uint8_t *dest, int stride) {
uint8x16_t zerov = vec_splat_u8(0);
uint8x16_t dest0 = vec_vsx_ld(0, dest);
uint8x16_t dest1 = vec_vsx_ld(stride, dest);
uint8x16_t dest2 = vec_vsx_ld(2 * stride, dest);
uint8x16_t dest3 = vec_vsx_ld(3 * stride, dest);
uint8x16_t dest4 = vec_vsx_ld(4 * stride, dest);
uint8x16_t dest5 = vec_vsx_ld(5 * stride, dest);
uint8x16_t dest6 = vec_vsx_ld(6 * stride, dest);
uint8x16_t dest7 = vec_vsx_ld(7 * stride, dest);
int16x8_t d_u0 = (int16x8_t)vec_mergeh(dest0, zerov);
int16x8_t d_u1 = (int16x8_t)vec_mergeh(dest1, zerov);
int16x8_t d_u2 = (int16x8_t)vec_mergeh(dest2, zerov);
int16x8_t d_u3 = (int16x8_t)vec_mergeh(dest3, zerov);
int16x8_t d_u4 = (int16x8_t)vec_mergeh(dest4, zerov);
int16x8_t d_u5 = (int16x8_t)vec_mergeh(dest5, zerov);
int16x8_t d_u6 = (int16x8_t)vec_mergeh(dest6, zerov);
int16x8_t d_u7 = (int16x8_t)vec_mergeh(dest7, zerov);
int16x8_t add = vec_sl(vec_splat_s16(8), vec_splat_u16(1));
uint16x8_t shift5 = vec_splat_u16(5);
uint8x16_t output0, output1, output2, output3;
PIXEL_ADD(in[0], d_u0, add, shift5);
PIXEL_ADD(in[1], d_u1, add, shift5);
PIXEL_ADD(in[2], d_u2, add, shift5);
PIXEL_ADD(in[3], d_u3, add, shift5);
PIXEL_ADD(in[4], d_u4, add, shift5);
PIXEL_ADD(in[5], d_u5, add, shift5);
PIXEL_ADD(in[6], d_u6, add, shift5);
PIXEL_ADD(in[7], d_u7, add, shift5);
output0 = vec_packsu(d_u0, d_u1);
output1 = vec_packsu(d_u2, d_u3);
output2 = vec_packsu(d_u4, d_u5);
output3 = vec_packsu(d_u6, d_u7);
vec_vsx_st(xxpermdi(output0, dest0, 1), 0, dest);
vec_vsx_st(xxpermdi(output0, dest1, 3), stride, dest);
vec_vsx_st(xxpermdi(output1, dest2, 1), 2 * stride, dest);
vec_vsx_st(xxpermdi(output1, dest3, 3), 3 * stride, dest);
vec_vsx_st(xxpermdi(output2, dest4, 1), 4 * stride, dest);
vec_vsx_st(xxpermdi(output2, dest5, 3), 5 * stride, dest);
vec_vsx_st(xxpermdi(output3, dest6, 1), 6 * stride, dest);
vec_vsx_st(xxpermdi(output3, dest7, 3), 7 * stride, dest);
}
void vpx_idct8x8_64_add_vsx(const tran_low_t *input, uint8_t *dest,
int stride) {
int16x8_t src[8], tmp[8];
src[0] = load_tran_low(0, input);
src[1] = load_tran_low(8 * sizeof(*input), input);
src[2] = load_tran_low(16 * sizeof(*input), input);
src[3] = load_tran_low(24 * sizeof(*input), input);
src[4] = load_tran_low(32 * sizeof(*input), input);
src[5] = load_tran_low(40 * sizeof(*input), input);
src[6] = load_tran_low(48 * sizeof(*input), input);
src[7] = load_tran_low(56 * sizeof(*input), input);
vpx_idct8_vsx(src, tmp);
vpx_idct8_vsx(tmp, src);
vpx_round_store8x8_vsx(src, dest, stride);
}
#define STEP16_1(inpt0, inpt1, outpt0, outpt1, cospi) \
tmp16_0 = vec_mergeh(inpt0, inpt1); \
tmp16_1 = vec_mergel(inpt0, inpt1); \
temp10 = vec_mule(tmp16_0, cospi); \
temp11 = vec_mule(tmp16_1, cospi); \
temp20 = vec_mulo(tmp16_0, cospi); \
temp21 = vec_mulo(tmp16_1, cospi); \
temp30 = vec_sub(temp10, temp20); \
temp10 = vec_add(temp10, temp20); \
temp20 = vec_sub(temp11, temp21); \
temp21 = vec_add(temp11, temp21); \
DCT_CONST_ROUND_SHIFT(temp30); \
DCT_CONST_ROUND_SHIFT(temp20); \
outpt0 = vec_packs(temp30, temp20); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp21); \
outpt1 = vec_packs(temp10, temp21);
#define IDCT16(in0, in1, in2, in3, in4, in5, in6, in7, in8, in9, inA, inB, \
inC, inD, inE, inF, out0, out1, out2, out3, out4, out5, out6, \
out7, out8, out9, outA, outB, outC, outD, outE, outF) \
/* stage 1 */ \
/* out0 = in0; */ \
out1 = in8; \
out2 = in4; \
out3 = inC; \
out4 = in2; \
out5 = inA; \
out6 = in6; \
out7 = inE; \
out8 = in1; \
out9 = in9; \
outA = in5; \
outB = inD; \
outC = in3; \
outD = inB; \
outE = in7; \
outF = inF; \
\
/* stage 2 */ \
/* in0 = out0; */ \
in1 = out1; \
in2 = out2; \
in3 = out3; \
in4 = out4; \
in5 = out5; \
in6 = out6; \
in7 = out7; \
\
STEP8_0(out8, outF, in8, inF, cospi30_v, cospi2_v); \
STEP8_0(out9, outE, in9, inE, cospi14_v, cospi18_v); \
STEP8_0(outA, outD, inA, inD, cospi22_v, cospi10_v); \
STEP8_0(outB, outC, inB, inC, cospi6_v, cospi26_v); \
\
/* stage 3 */ \
out0 = in0; \
out1 = in1; \
out2 = in2; \
out3 = in3; \
\
STEP8_0(in4, in7, out4, out7, cospi28_v, cospi4_v); \
STEP8_0(in5, in6, out5, out6, cospi12_v, cospi20_v); \
\
out8 = vec_add(in8, in9); \
out9 = vec_sub(in8, in9); \
outA = vec_sub(inB, inA); \
outB = vec_add(inA, inB); \
outC = vec_add(inC, inD); \
outD = vec_sub(inC, inD); \
outE = vec_sub(inF, inE); \
outF = vec_add(inE, inF); \
\
/* stage 4 */ \
STEP16_1(out0, out1, in1, in0, cospi16_v); \
STEP8_0(out2, out3, in2, in3, cospi24_v, cospi8_v); \
in4 = vec_add(out4, out5); \
in5 = vec_sub(out4, out5); \
in6 = vec_sub(out7, out6); \
in7 = vec_add(out6, out7); \
\
in8 = out8; \
inF = outF; \
tmp16_0 = vec_mergeh(out9, outE); \
tmp16_1 = vec_mergel(out9, outE); \
temp10 = vec_sub(vec_mulo(tmp16_0, cospi24_v), vec_mule(tmp16_0, cospi8_v)); \
temp11 = vec_sub(vec_mulo(tmp16_1, cospi24_v), vec_mule(tmp16_1, cospi8_v)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
in9 = vec_packs(temp10, temp11); \
temp10 = vec_add(vec_mule(tmp16_0, cospi24_v), vec_mulo(tmp16_0, cospi8_v)); \
temp11 = vec_add(vec_mule(tmp16_1, cospi24_v), vec_mulo(tmp16_1, cospi8_v)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
inE = vec_packs(temp10, temp11); \
\
tmp16_0 = vec_mergeh(outA, outD); \
tmp16_1 = vec_mergel(outA, outD); \
temp10 = \
vec_sub(vec_mule(tmp16_0, cospi24m_v), vec_mulo(tmp16_0, cospi8_v)); \
temp11 = \
vec_sub(vec_mule(tmp16_1, cospi24m_v), vec_mulo(tmp16_1, cospi8_v)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
inA = vec_packs(temp10, temp11); \
temp10 = vec_sub(vec_mulo(tmp16_0, cospi24_v), vec_mule(tmp16_0, cospi8_v)); \
temp11 = vec_sub(vec_mulo(tmp16_1, cospi24_v), vec_mule(tmp16_1, cospi8_v)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
inD = vec_packs(temp10, temp11); \
\
inB = outB; \
inC = outC; \
\
/* stage 5 */ \
out0 = vec_add(in0, in3); \
out1 = vec_add(in1, in2); \
out2 = vec_sub(in1, in2); \
out3 = vec_sub(in0, in3); \
out4 = in4; \
STEP16_1(in6, in5, out5, out6, cospi16_v); \
out7 = in7; \
\
out8 = vec_add(in8, inB); \
out9 = vec_add(in9, inA); \
outA = vec_sub(in9, inA); \
outB = vec_sub(in8, inB); \
outC = vec_sub(inF, inC); \
outD = vec_sub(inE, inD); \
outE = vec_add(inD, inE); \
outF = vec_add(inC, inF); \
\
/* stage 6 */ \
in0 = vec_add(out0, out7); \
in1 = vec_add(out1, out6); \
in2 = vec_add(out2, out5); \
in3 = vec_add(out3, out4); \
in4 = vec_sub(out3, out4); \
in5 = vec_sub(out2, out5); \
in6 = vec_sub(out1, out6); \
in7 = vec_sub(out0, out7); \
in8 = out8; \
in9 = out9; \
STEP16_1(outD, outA, inA, inD, cospi16_v); \
STEP16_1(outC, outB, inB, inC, cospi16_v); \
inE = outE; \
inF = outF; \
\
/* stage 7 */ \
out0 = vec_add(in0, inF); \
out1 = vec_add(in1, inE); \
out2 = vec_add(in2, inD); \
out3 = vec_add(in3, inC); \
out4 = vec_add(in4, inB); \
out5 = vec_add(in5, inA); \
out6 = vec_add(in6, in9); \
out7 = vec_add(in7, in8); \
out8 = vec_sub(in7, in8); \
out9 = vec_sub(in6, in9); \
outA = vec_sub(in5, inA); \
outB = vec_sub(in4, inB); \
outC = vec_sub(in3, inC); \
outD = vec_sub(in2, inD); \
outE = vec_sub(in1, inE); \
outF = vec_sub(in0, inF);
#define PIXEL_ADD_STORE16(in0, in1, dst, offset) \
d_uh = (int16x8_t)vec_mergeh(dst, zerov); \
d_ul = (int16x8_t)vec_mergel(dst, zerov); \
PIXEL_ADD(in0, d_uh, add, shift6); \
PIXEL_ADD(in1, d_ul, add, shift6); \
vec_vsx_st(vec_packsu(d_uh, d_ul), offset, dest);
static void half_idct16x8_vsx(int16x8_t *src) {
int16x8_t tmp0[8], tmp1[8];
int32x4_t temp10, temp11, temp20, temp21, temp30;
int16x8_t tmp16_0, tmp16_1;
ROUND_SHIFT_INIT;
TRANSPOSE8x8(src[0], src[2], src[4], src[6], src[8], src[10], src[12],
src[14], tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5],
tmp0[6], tmp0[7]);
TRANSPOSE8x8(src[1], src[3], src[5], src[7], src[9], src[11], src[13],
src[15], tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5],
tmp1[6], tmp1[7]);
IDCT16(tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5], tmp0[6], tmp0[7],
tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5], tmp1[6], tmp1[7],
src[0], src[2], src[4], src[6], src[8], src[10], src[12], src[14],
src[1], src[3], src[5], src[7], src[9], src[11], src[13], src[15]);
}
void vpx_idct16_vsx(int16x8_t *src0, int16x8_t *src1) {
int16x8_t tmp0[8], tmp1[8], tmp2[8], tmp3[8];
int32x4_t temp10, temp11, temp20, temp21, temp30;
int16x8_t tmp16_0, tmp16_1;
ROUND_SHIFT_INIT;
TRANSPOSE8x8(src0[0], src0[2], src0[4], src0[6], src0[8], src0[10], src0[12],
src0[14], tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5],
tmp0[6], tmp0[7]);
TRANSPOSE8x8(src0[1], src0[3], src0[5], src0[7], src0[9], src0[11], src0[13],
src0[15], tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5],
tmp1[6], tmp1[7]);
TRANSPOSE8x8(src1[0], src1[2], src1[4], src1[6], src1[8], src1[10], src1[12],
src1[14], tmp2[0], tmp2[1], tmp2[2], tmp2[3], tmp2[4], tmp2[5],
tmp2[6], tmp2[7]);
TRANSPOSE8x8(src1[1], src1[3], src1[5], src1[7], src1[9], src1[11], src1[13],
src1[15], tmp3[0], tmp3[1], tmp3[2], tmp3[3], tmp3[4], tmp3[5],
tmp3[6], tmp3[7]);
IDCT16(tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5], tmp0[6], tmp0[7],
tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5], tmp1[6], tmp1[7],
src0[0], src0[2], src0[4], src0[6], src0[8], src0[10], src0[12],
src0[14], src1[0], src1[2], src1[4], src1[6], src1[8], src1[10],
src1[12], src1[14]);
IDCT16(tmp2[0], tmp2[1], tmp2[2], tmp2[3], tmp2[4], tmp2[5], tmp2[6], tmp2[7],
tmp3[0], tmp3[1], tmp3[2], tmp3[3], tmp3[4], tmp3[5], tmp3[6], tmp3[7],
src0[1], src0[3], src0[5], src0[7], src0[9], src0[11], src0[13],
src0[15], src1[1], src1[3], src1[5], src1[7], src1[9], src1[11],
src1[13], src1[15]);
}
void vpx_round_store16x16_vsx(int16x8_t *src0, int16x8_t *src1, uint8_t *dest,
int stride) {
uint8x16_t destv[16];
int16x8_t d_uh, d_ul;
uint8x16_t zerov = vec_splat_u8(0);
uint16x8_t shift6 = vec_splat_u16(6);
int16x8_t add = vec_sl(vec_splat_s16(8), vec_splat_u16(2));
// load dest
LOAD_INPUT16(vec_vsx_ld, dest, 0, stride, destv);
PIXEL_ADD_STORE16(src0[0], src0[1], destv[0], 0);
PIXEL_ADD_STORE16(src0[2], src0[3], destv[1], stride);
PIXEL_ADD_STORE16(src0[4], src0[5], destv[2], 2 * stride);
PIXEL_ADD_STORE16(src0[6], src0[7], destv[3], 3 * stride);
PIXEL_ADD_STORE16(src0[8], src0[9], destv[4], 4 * stride);
PIXEL_ADD_STORE16(src0[10], src0[11], destv[5], 5 * stride);
PIXEL_ADD_STORE16(src0[12], src0[13], destv[6], 6 * stride);
PIXEL_ADD_STORE16(src0[14], src0[15], destv[7], 7 * stride);
PIXEL_ADD_STORE16(src1[0], src1[1], destv[8], 8 * stride);
PIXEL_ADD_STORE16(src1[2], src1[3], destv[9], 9 * stride);
PIXEL_ADD_STORE16(src1[4], src1[5], destv[10], 10 * stride);
PIXEL_ADD_STORE16(src1[6], src1[7], destv[11], 11 * stride);
PIXEL_ADD_STORE16(src1[8], src1[9], destv[12], 12 * stride);
PIXEL_ADD_STORE16(src1[10], src1[11], destv[13], 13 * stride);
PIXEL_ADD_STORE16(src1[12], src1[13], destv[14], 14 * stride);
PIXEL_ADD_STORE16(src1[14], src1[15], destv[15], 15 * stride);
}
void vpx_idct16x16_256_add_vsx(const tran_low_t *input, uint8_t *dest,
int stride) {
int16x8_t src0[16], src1[16];
int16x8_t tmp0[8], tmp1[8], tmp2[8], tmp3[8];
int32x4_t temp10, temp11, temp20, temp21, temp30;
int16x8_t tmp16_0, tmp16_1;
ROUND_SHIFT_INIT;
LOAD_INPUT16(load_tran_low, input, 0, 8 * sizeof(*input), src0);
LOAD_INPUT16(load_tran_low, input, 8 * 8 * 2 * sizeof(*input),
8 * sizeof(*input), src1);
// transform rows
// transform the upper half of 16x16 matrix
half_idct16x8_vsx(src0);
TRANSPOSE8x8(src0[0], src0[2], src0[4], src0[6], src0[8], src0[10], src0[12],
src0[14], tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5],
tmp0[6], tmp0[7]);
TRANSPOSE8x8(src0[1], src0[3], src0[5], src0[7], src0[9], src0[11], src0[13],
src0[15], tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5],
tmp1[6], tmp1[7]);
// transform the lower half of 16x16 matrix
half_idct16x8_vsx(src1);
TRANSPOSE8x8(src1[0], src1[2], src1[4], src1[6], src1[8], src1[10], src1[12],
src1[14], tmp2[0], tmp2[1], tmp2[2], tmp2[3], tmp2[4], tmp2[5],
tmp2[6], tmp2[7]);
TRANSPOSE8x8(src1[1], src1[3], src1[5], src1[7], src1[9], src1[11], src1[13],
src1[15], tmp3[0], tmp3[1], tmp3[2], tmp3[3], tmp3[4], tmp3[5],
tmp3[6], tmp3[7]);
// transform columns
// left half first
IDCT16(tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5], tmp0[6], tmp0[7],
tmp2[0], tmp2[1], tmp2[2], tmp2[3], tmp2[4], tmp2[5], tmp2[6], tmp2[7],
src0[0], src0[2], src0[4], src0[6], src0[8], src0[10], src0[12],
src0[14], src1[0], src1[2], src1[4], src1[6], src1[8], src1[10],
src1[12], src1[14]);
// right half
IDCT16(tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5], tmp1[6], tmp1[7],
tmp3[0], tmp3[1], tmp3[2], tmp3[3], tmp3[4], tmp3[5], tmp3[6], tmp3[7],
src0[1], src0[3], src0[5], src0[7], src0[9], src0[11], src0[13],
src0[15], src1[1], src1[3], src1[5], src1[7], src1[9], src1[11],
src1[13], src1[15]);
vpx_round_store16x16_vsx(src0, src1, dest, stride);
}
#define LOAD_8x32(load, in00, in01, in02, in03, in10, in11, in12, in13, in20, \
in21, in22, in23, in30, in31, in32, in33, in40, in41, in42, \
in43, in50, in51, in52, in53, in60, in61, in62, in63, in70, \
in71, in72, in73, offset) \
/* load the first row from the 8x32 block*/ \
in00 = load(offset, input); \
in01 = load(offset + 16, input); \
in02 = load(offset + 2 * 16, input); \
in03 = load(offset + 3 * 16, input); \
\
in10 = load(offset + 4 * 16, input); \
in11 = load(offset + 5 * 16, input); \
in12 = load(offset + 6 * 16, input); \
in13 = load(offset + 7 * 16, input); \
\
in20 = load(offset + 8 * 16, input); \
in21 = load(offset + 9 * 16, input); \
in22 = load(offset + 10 * 16, input); \
in23 = load(offset + 11 * 16, input); \
\
in30 = load(offset + 12 * 16, input); \
in31 = load(offset + 13 * 16, input); \
in32 = load(offset + 14 * 16, input); \
in33 = load(offset + 15 * 16, input); \
\
in40 = load(offset + 16 * 16, input); \
in41 = load(offset + 17 * 16, input); \
in42 = load(offset + 18 * 16, input); \
in43 = load(offset + 19 * 16, input); \
\
in50 = load(offset + 20 * 16, input); \
in51 = load(offset + 21 * 16, input); \
in52 = load(offset + 22 * 16, input); \
in53 = load(offset + 23 * 16, input); \
\
in60 = load(offset + 24 * 16, input); \
in61 = load(offset + 25 * 16, input); \
in62 = load(offset + 26 * 16, input); \
in63 = load(offset + 27 * 16, input); \
\
/* load the last row from the 8x32 block*/ \
in70 = load(offset + 28 * 16, input); \
in71 = load(offset + 29 * 16, input); \
in72 = load(offset + 30 * 16, input); \
in73 = load(offset + 31 * 16, input);
/* for the: temp1 = -step[x] * cospi_q + step[y] * cospi_z
* temp2 = step[x] * cospi_z + step[y] * cospi_q */
#define STEP32(inpt0, inpt1, outpt0, outpt1, cospi0, cospi1) \
tmp16_0 = vec_mergeh(inpt0, inpt1); \
tmp16_1 = vec_mergel(inpt0, inpt1); \
temp10 = vec_sub(vec_mulo(tmp16_0, cospi1), vec_mule(tmp16_0, cospi0)); \
temp11 = vec_sub(vec_mulo(tmp16_1, cospi1), vec_mule(tmp16_1, cospi0)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt0 = vec_packs(temp10, temp11); \
temp10 = vec_add(vec_mule(tmp16_0, cospi1), vec_mulo(tmp16_0, cospi0)); \
temp11 = vec_add(vec_mule(tmp16_1, cospi1), vec_mulo(tmp16_1, cospi0)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt1 = vec_packs(temp10, temp11);
/* for the: temp1 = -step[x] * cospi_q - step[y] * cospi_z
* temp2 = -step[x] * cospi_z + step[y] * cospi_q */
#define STEP32_1(inpt0, inpt1, outpt0, outpt1, cospi0, cospi1, cospi1m) \
tmp16_0 = vec_mergeh(inpt0, inpt1); \
tmp16_1 = vec_mergel(inpt0, inpt1); \
temp10 = vec_sub(vec_mulo(tmp16_0, cospi1m), vec_mule(tmp16_0, cospi0)); \
temp11 = vec_sub(vec_mulo(tmp16_1, cospi1m), vec_mule(tmp16_1, cospi0)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt0 = vec_packs(temp10, temp11); \
temp10 = vec_sub(vec_mulo(tmp16_0, cospi0), vec_mule(tmp16_0, cospi1)); \
temp11 = vec_sub(vec_mulo(tmp16_1, cospi0), vec_mule(tmp16_1, cospi1)); \
DCT_CONST_ROUND_SHIFT(temp10); \
DCT_CONST_ROUND_SHIFT(temp11); \
outpt1 = vec_packs(temp10, temp11);
#define IDCT32(in0, in1, in2, in3, out) \
\
/* stage 1 */ \
/* out[0][0] = in[0][0]; */ \
out[0][1] = in2[0]; \
out[0][2] = in1[0]; \
out[0][3] = in3[0]; \
out[0][4] = in0[4]; \
out[0][5] = in2[4]; \
out[0][6] = in1[4]; \
out[0][7] = in3[4]; \
out[1][0] = in0[2]; \
out[1][1] = in2[2]; \
out[1][2] = in1[2]; \
out[1][3] = in3[2]; \
out[1][4] = in0[6]; \
out[1][5] = in2[6]; \
out[1][6] = in1[6]; \
out[1][7] = in3[6]; \
\
STEP8_0(in0[1], in3[7], out[2][0], out[3][7], cospi31_v, cospi1_v); \
STEP8_0(in2[1], in1[7], out[2][1], out[3][6], cospi15_v, cospi17_v); \
STEP8_0(in1[1], in2[7], out[2][2], out[3][5], cospi23_v, cospi9_v); \
STEP8_0(in3[1], in0[7], out[2][3], out[3][4], cospi7_v, cospi25_v); \
STEP8_0(in0[5], in3[3], out[2][4], out[3][3], cospi27_v, cospi5_v); \
STEP8_0(in2[5], in1[3], out[2][5], out[3][2], cospi11_v, cospi21_v); \
STEP8_0(in1[5], in2[3], out[2][6], out[3][1], cospi19_v, cospi13_v); \
STEP8_0(in3[5], in0[3], out[2][7], out[3][0], cospi3_v, cospi29_v); \
\
/* stage 2 */ \
/* in0[0] = out[0][0]; */ \
in0[1] = out[0][1]; \
in0[2] = out[0][2]; \
in0[3] = out[0][3]; \
in0[4] = out[0][4]; \
in0[5] = out[0][5]; \
in0[6] = out[0][6]; \
in0[7] = out[0][7]; \
\
STEP8_0(out[1][0], out[1][7], in1[0], in1[7], cospi30_v, cospi2_v); \
STEP8_0(out[1][1], out[1][6], in1[1], in1[6], cospi14_v, cospi18_v); \
STEP8_0(out[1][2], out[1][5], in1[2], in1[5], cospi22_v, cospi10_v); \
STEP8_0(out[1][3], out[1][4], in1[3], in1[4], cospi6_v, cospi26_v); \
\
in2[0] = vec_add(out[2][0], out[2][1]); \
in2[1] = vec_sub(out[2][0], out[2][1]); \
in2[2] = vec_sub(out[2][3], out[2][2]); \
in2[3] = vec_add(out[2][3], out[2][2]); \
in2[4] = vec_add(out[2][4], out[2][5]); \
in2[5] = vec_sub(out[2][4], out[2][5]); \
in2[6] = vec_sub(out[2][7], out[2][6]); \
in2[7] = vec_add(out[2][7], out[2][6]); \
in3[0] = vec_add(out[3][0], out[3][1]); \
in3[1] = vec_sub(out[3][0], out[3][1]); \
in3[2] = vec_sub(out[3][3], out[3][2]); \
in3[3] = vec_add(out[3][3], out[3][2]); \
in3[4] = vec_add(out[3][4], out[3][5]); \
in3[5] = vec_sub(out[3][4], out[3][5]); \
in3[6] = vec_sub(out[3][7], out[3][6]); \
in3[7] = vec_add(out[3][6], out[3][7]); \
\
/* stage 3 */ \
out[0][0] = in0[0]; \
out[0][1] = in0[1]; \
out[0][2] = in0[2]; \
out[0][3] = in0[3]; \
\
STEP8_0(in0[4], in0[7], out[0][4], out[0][7], cospi28_v, cospi4_v); \
STEP8_0(in0[5], in0[6], out[0][5], out[0][6], cospi12_v, cospi20_v); \
\
out[1][0] = vec_add(in1[0], in1[1]); \
out[1][1] = vec_sub(in1[0], in1[1]); \
out[1][2] = vec_sub(in1[3], in1[2]); \
out[1][3] = vec_add(in1[2], in1[3]); \
out[1][4] = vec_add(in1[4], in1[5]); \
out[1][5] = vec_sub(in1[4], in1[5]); \
out[1][6] = vec_sub(in1[7], in1[6]); \
out[1][7] = vec_add(in1[6], in1[7]); \
\
out[2][0] = in2[0]; \
out[3][7] = in3[7]; \
STEP32(in2[1], in3[6], out[2][1], out[3][6], cospi4_v, cospi28_v); \
STEP32_1(in2[2], in3[5], out[2][2], out[3][5], cospi28_v, cospi4_v, \
cospi4m_v); \
out[2][3] = in2[3]; \
out[2][4] = in2[4]; \
STEP32(in2[5], in3[2], out[2][5], out[3][2], cospi20_v, cospi12_v); \
STEP32_1(in2[6], in3[1], out[2][6], out[3][1], cospi12_v, cospi20_v, \
cospi20m_v); \
out[2][7] = in2[7]; \
out[3][0] = in3[0]; \
out[3][3] = in3[3]; \
out[3][4] = in3[4]; \
\
/* stage 4 */ \
STEP16_1(out[0][0], out[0][1], in0[1], in0[0], cospi16_v); \
STEP8_0(out[0][2], out[0][3], in0[2], in0[3], cospi24_v, cospi8_v); \
in0[4] = vec_add(out[0][4], out[0][5]); \
in0[5] = vec_sub(out[0][4], out[0][5]); \
in0[6] = vec_sub(out[0][7], out[0][6]); \
in0[7] = vec_add(out[0][7], out[0][6]); \
\
in1[0] = out[1][0]; \
in1[7] = out[1][7]; \
STEP32(out[1][1], out[1][6], in1[1], in1[6], cospi8_v, cospi24_v); \
STEP32_1(out[1][2], out[1][5], in1[2], in1[5], cospi24_v, cospi8_v, \
cospi8m_v); \
in1[3] = out[1][3]; \
in1[4] = out[1][4]; \
\
in2[0] = vec_add(out[2][0], out[2][3]); \
in2[1] = vec_add(out[2][1], out[2][2]); \
in2[2] = vec_sub(out[2][1], out[2][2]); \
in2[3] = vec_sub(out[2][0], out[2][3]); \
in2[4] = vec_sub(out[2][7], out[2][4]); \
in2[5] = vec_sub(out[2][6], out[2][5]); \
in2[6] = vec_add(out[2][5], out[2][6]); \
in2[7] = vec_add(out[2][4], out[2][7]); \
\
in3[0] = vec_add(out[3][0], out[3][3]); \
in3[1] = vec_add(out[3][1], out[3][2]); \
in3[2] = vec_sub(out[3][1], out[3][2]); \
in3[3] = vec_sub(out[3][0], out[3][3]); \
in3[4] = vec_sub(out[3][7], out[3][4]); \
in3[5] = vec_sub(out[3][6], out[3][5]); \
in3[6] = vec_add(out[3][5], out[3][6]); \
in3[7] = vec_add(out[3][4], out[3][7]); \
\
/* stage 5 */ \
out[0][0] = vec_add(in0[0], in0[3]); \
out[0][1] = vec_add(in0[1], in0[2]); \
out[0][2] = vec_sub(in0[1], in0[2]); \
out[0][3] = vec_sub(in0[0], in0[3]); \
out[0][4] = in0[4]; \
STEP16_1(in0[6], in0[5], out[0][5], out[0][6], cospi16_v); \
out[0][7] = in0[7]; \
\
out[1][0] = vec_add(in1[0], in1[3]); \
out[1][1] = vec_add(in1[1], in1[2]); \
out[1][2] = vec_sub(in1[1], in1[2]); \
out[1][3] = vec_sub(in1[0], in1[3]); \
out[1][4] = vec_sub(in1[7], in1[4]); \
out[1][5] = vec_sub(in1[6], in1[5]); \
out[1][6] = vec_add(in1[5], in1[6]); \
out[1][7] = vec_add(in1[4], in1[7]); \
\
out[2][0] = in2[0]; \
out[2][1] = in2[1]; \
STEP32(in2[2], in3[5], out[2][2], out[3][5], cospi8_v, cospi24_v); \
STEP32(in2[3], in3[4], out[2][3], out[3][4], cospi8_v, cospi24_v); \
STEP32_1(in2[4], in3[3], out[2][4], out[3][3], cospi24_v, cospi8_v, \
cospi8m_v); \
STEP32_1(in2[5], in3[2], out[2][5], out[3][2], cospi24_v, cospi8_v, \
cospi8m_v); \
out[2][6] = in2[6]; \
out[2][7] = in2[7]; \
out[3][0] = in3[0]; \
out[3][1] = in3[1]; \
out[3][6] = in3[6]; \
out[3][7] = in3[7]; \
\
/* stage 6 */ \
in0[0] = vec_add(out[0][0], out[0][7]); \
in0[1] = vec_add(out[0][1], out[0][6]); \
in0[2] = vec_add(out[0][2], out[0][5]); \
in0[3] = vec_add(out[0][3], out[0][4]); \
in0[4] = vec_sub(out[0][3], out[0][4]); \
in0[5] = vec_sub(out[0][2], out[0][5]); \
in0[6] = vec_sub(out[0][1], out[0][6]); \
in0[7] = vec_sub(out[0][0], out[0][7]); \
in1[0] = out[1][0]; \
in1[1] = out[1][1]; \
STEP16_1(out[1][5], out[1][2], in1[2], in1[5], cospi16_v); \
STEP16_1(out[1][4], out[1][3], in1[3], in1[4], cospi16_v); \
in1[6] = out[1][6]; \
in1[7] = out[1][7]; \
\
in2[0] = vec_add(out[2][0], out[2][7]); \
in2[1] = vec_add(out[2][1], out[2][6]); \
in2[2] = vec_add(out[2][2], out[2][5]); \
in2[3] = vec_add(out[2][3], out[2][4]); \
in2[4] = vec_sub(out[2][3], out[2][4]); \
in2[5] = vec_sub(out[2][2], out[2][5]); \
in2[6] = vec_sub(out[2][1], out[2][6]); \
in2[7] = vec_sub(out[2][0], out[2][7]); \
\
in3[0] = vec_sub(out[3][7], out[3][0]); \
in3[1] = vec_sub(out[3][6], out[3][1]); \
in3[2] = vec_sub(out[3][5], out[3][2]); \
in3[3] = vec_sub(out[3][4], out[3][3]); \
in3[4] = vec_add(out[3][4], out[3][3]); \
in3[5] = vec_add(out[3][5], out[3][2]); \
in3[6] = vec_add(out[3][6], out[3][1]); \
in3[7] = vec_add(out[3][7], out[3][0]); \
\
/* stage 7 */ \
out[0][0] = vec_add(in0[0], in1[7]); \
out[0][1] = vec_add(in0[1], in1[6]); \
out[0][2] = vec_add(in0[2], in1[5]); \
out[0][3] = vec_add(in0[3], in1[4]); \
out[0][4] = vec_add(in0[4], in1[3]); \
out[0][5] = vec_add(in0[5], in1[2]); \
out[0][6] = vec_add(in0[6], in1[1]); \
out[0][7] = vec_add(in0[7], in1[0]); \
out[1][0] = vec_sub(in0[7], in1[0]); \
out[1][1] = vec_sub(in0[6], in1[1]); \
out[1][2] = vec_sub(in0[5], in1[2]); \
out[1][3] = vec_sub(in0[4], in1[3]); \
out[1][4] = vec_sub(in0[3], in1[4]); \
out[1][5] = vec_sub(in0[2], in1[5]); \
out[1][6] = vec_sub(in0[1], in1[6]); \
out[1][7] = vec_sub(in0[0], in1[7]); \
\
out[2][0] = in2[0]; \
out[2][1] = in2[1]; \
out[2][2] = in2[2]; \
out[2][3] = in2[3]; \
STEP16_1(in3[3], in2[4], out[2][4], out[3][3], cospi16_v); \
STEP16_1(in3[2], in2[5], out[2][5], out[3][2], cospi16_v); \
STEP16_1(in3[1], in2[6], out[2][6], out[3][1], cospi16_v); \
STEP16_1(in3[0], in2[7], out[2][7], out[3][0], cospi16_v); \
out[3][4] = in3[4]; \
out[3][5] = in3[5]; \
out[3][6] = in3[6]; \
out[3][7] = in3[7]; \
\
/* final */ \
in0[0] = vec_add(out[0][0], out[3][7]); \
in0[1] = vec_add(out[0][1], out[3][6]); \
in0[2] = vec_add(out[0][2], out[3][5]); \
in0[3] = vec_add(out[0][3], out[3][4]); \
in0[4] = vec_add(out[0][4], out[3][3]); \
in0[5] = vec_add(out[0][5], out[3][2]); \
in0[6] = vec_add(out[0][6], out[3][1]); \
in0[7] = vec_add(out[0][7], out[3][0]); \
in1[0] = vec_add(out[1][0], out[2][7]); \
in1[1] = vec_add(out[1][1], out[2][6]); \
in1[2] = vec_add(out[1][2], out[2][5]); \
in1[3] = vec_add(out[1][3], out[2][4]); \
in1[4] = vec_add(out[1][4], out[2][3]); \
in1[5] = vec_add(out[1][5], out[2][2]); \
in1[6] = vec_add(out[1][6], out[2][1]); \
in1[7] = vec_add(out[1][7], out[2][0]); \
in2[0] = vec_sub(out[1][7], out[2][0]); \
in2[1] = vec_sub(out[1][6], out[2][1]); \
in2[2] = vec_sub(out[1][5], out[2][2]); \
in2[3] = vec_sub(out[1][4], out[2][3]); \
in2[4] = vec_sub(out[1][3], out[2][4]); \
in2[5] = vec_sub(out[1][2], out[2][5]); \
in2[6] = vec_sub(out[1][1], out[2][6]); \
in2[7] = vec_sub(out[1][0], out[2][7]); \
in3[0] = vec_sub(out[0][7], out[3][0]); \
in3[1] = vec_sub(out[0][6], out[3][1]); \
in3[2] = vec_sub(out[0][5], out[3][2]); \
in3[3] = vec_sub(out[0][4], out[3][3]); \
in3[4] = vec_sub(out[0][3], out[3][4]); \
in3[5] = vec_sub(out[0][2], out[3][5]); \
in3[6] = vec_sub(out[0][1], out[3][6]); \
in3[7] = vec_sub(out[0][0], out[3][7]);
// NOT A FULL TRANSPOSE! Transposes just each 8x8 block in each row,
// does not transpose rows
#define TRANSPOSE_8x32(in, out) \
/* transpose 4 of 8x8 blocks */ \
TRANSPOSE8x8(in[0][0], in[0][1], in[0][2], in[0][3], in[0][4], in[0][5], \
in[0][6], in[0][7], out[0][0], out[0][1], out[0][2], out[0][3], \
out[0][4], out[0][5], out[0][6], out[0][7]); \
TRANSPOSE8x8(in[1][0], in[1][1], in[1][2], in[1][3], in[1][4], in[1][5], \
in[1][6], in[1][7], out[1][0], out[1][1], out[1][2], out[1][3], \
out[1][4], out[1][5], out[1][6], out[1][7]); \
TRANSPOSE8x8(in[2][0], in[2][1], in[2][2], in[2][3], in[2][4], in[2][5], \
in[2][6], in[2][7], out[2][0], out[2][1], out[2][2], out[2][3], \
out[2][4], out[2][5], out[2][6], out[2][7]); \
TRANSPOSE8x8(in[3][0], in[3][1], in[3][2], in[3][3], in[3][4], in[3][5], \
in[3][6], in[3][7], out[3][0], out[3][1], out[3][2], out[3][3], \
out[3][4], out[3][5], out[3][6], out[3][7]);
#define PIXEL_ADD_STORE32(in0, in1, in2, in3, step) \
dst = vec_vsx_ld((step)*stride, dest); \
d_uh = (int16x8_t)vec_mergeh(dst, zerov); \
d_ul = (int16x8_t)vec_mergel(dst, zerov); \
PIXEL_ADD(in0, d_uh, add, shift6); \
PIXEL_ADD(in1, d_ul, add, shift6); \
vec_vsx_st(vec_packsu(d_uh, d_ul), (step)*stride, dest); \
dst = vec_vsx_ld((step)*stride + 16, dest); \
d_uh = (int16x8_t)vec_mergeh(dst, zerov); \
d_ul = (int16x8_t)vec_mergel(dst, zerov); \
PIXEL_ADD(in2, d_uh, add, shift6); \
PIXEL_ADD(in3, d_ul, add, shift6); \
vec_vsx_st(vec_packsu(d_uh, d_ul), (step)*stride + 16, dest);
#define ADD_STORE_BLOCK(in, offset) \
PIXEL_ADD_STORE32(in[0][0], in[1][0], in[2][0], in[3][0], (offset) + 0); \
PIXEL_ADD_STORE32(in[0][1], in[1][1], in[2][1], in[3][1], (offset) + 1); \
PIXEL_ADD_STORE32(in[0][2], in[1][2], in[2][2], in[3][2], (offset) + 2); \
PIXEL_ADD_STORE32(in[0][3], in[1][3], in[2][3], in[3][3], (offset) + 3); \
PIXEL_ADD_STORE32(in[0][4], in[1][4], in[2][4], in[3][4], (offset) + 4); \
PIXEL_ADD_STORE32(in[0][5], in[1][5], in[2][5], in[3][5], (offset) + 5); \
PIXEL_ADD_STORE32(in[0][6], in[1][6], in[2][6], in[3][6], (offset) + 6); \
PIXEL_ADD_STORE32(in[0][7], in[1][7], in[2][7], in[3][7], (offset) + 7);
void vpx_idct32x32_1024_add_vsx(const tran_low_t *input, uint8_t *dest,
int stride) {
int16x8_t src0[4][8], src1[4][8], src2[4][8], src3[4][8], tmp[4][8];
int16x8_t tmp16_0, tmp16_1;
int32x4_t temp10, temp11, temp20, temp21, temp30;
uint8x16_t dst;
int16x8_t d_uh, d_ul;
int16x8_t add = vec_sl(vec_splat_s16(8), vec_splat_u16(2));
uint16x8_t shift6 = vec_splat_u16(6);
uint8x16_t zerov = vec_splat_u8(0);
ROUND_SHIFT_INIT;
LOAD_8x32(load_tran_low, src0[0][0], src0[1][0], src0[2][0], src0[3][0],
src0[0][1], src0[1][1], src0[2][1], src0[3][1], src0[0][2],
src0[1][2], src0[2][2], src0[3][2], src0[0][3], src0[1][3],
src0[2][3], src0[3][3], src0[0][4], src0[1][4], src0[2][4],
src0[3][4], src0[0][5], src0[1][5], src0[2][5], src0[3][5],
src0[0][6], src0[1][6], src0[2][6], src0[3][6], src0[0][7],
src0[1][7], src0[2][7], src0[3][7], 0);
// Rows
// transpose the first row of 8x8 blocks
TRANSPOSE_8x32(src0, tmp);
// transform the 32x8 column
IDCT32(tmp[0], tmp[1], tmp[2], tmp[3], src0);
TRANSPOSE_8x32(tmp, src0);
LOAD_8x32(load_tran_low, src1[0][0], src1[1][0], src1[2][0], src1[3][0],
src1[0][1], src1[1][1], src1[2][1], src1[3][1], src1[0][2],
src1[1][2], src1[2][2], src1[3][2], src1[0][3], src1[1][3],
src1[2][3], src1[3][3], src1[0][4], src1[1][4], src1[2][4],
src1[3][4], src1[0][5], src1[1][5], src1[2][5], src1[3][5],
src1[0][6], src1[1][6], src1[2][6], src1[3][6], src1[0][7],
src1[1][7], src1[2][7], src1[3][7], 512);
TRANSPOSE_8x32(src1, tmp);
IDCT32(tmp[0], tmp[1], tmp[2], tmp[3], src1);
TRANSPOSE_8x32(tmp, src1);
LOAD_8x32(load_tran_low, src2[0][0], src2[1][0], src2[2][0], src2[3][0],
src2[0][1], src2[1][1], src2[2][1], src2[3][1], src2[0][2],
src2[1][2], src2[2][2], src2[3][2], src2[0][3], src2[1][3],
src2[2][3], src2[3][3], src2[0][4], src2[1][4], src2[2][4],
src2[3][4], src2[0][5], src2[1][5], src2[2][5], src2[3][5],
src2[0][6], src2[1][6], src2[2][6], src2[3][6], src2[0][7],
src2[1][7], src2[2][7], src2[3][7], 1024);
TRANSPOSE_8x32(src2, tmp);
IDCT32(tmp[0], tmp[1], tmp[2], tmp[3], src2);
TRANSPOSE_8x32(tmp, src2);
LOAD_8x32(load_tran_low, src3[0][0], src3[1][0], src3[2][0], src3[3][0],
src3[0][1], src3[1][1], src3[2][1], src3[3][1], src3[0][2],
src3[1][2], src3[2][2], src3[3][2], src3[0][3], src3[1][3],
src3[2][3], src3[3][3], src3[0][4], src3[1][4], src3[2][4],
src3[3][4], src3[0][5], src3[1][5], src3[2][5], src3[3][5],
src3[0][6], src3[1][6], src3[2][6], src3[3][6], src3[0][7],
src3[1][7], src3[2][7], src3[3][7], 1536);
TRANSPOSE_8x32(src3, tmp);
IDCT32(tmp[0], tmp[1], tmp[2], tmp[3], src3);
TRANSPOSE_8x32(tmp, src3);
// Columns
IDCT32(src0[0], src1[0], src2[0], src3[0], tmp);
IDCT32(src0[1], src1[1], src2[1], src3[1], tmp);
IDCT32(src0[2], src1[2], src2[2], src3[2], tmp);
IDCT32(src0[3], src1[3], src2[3], src3[3], tmp);
ADD_STORE_BLOCK(src0, 0);
ADD_STORE_BLOCK(src1, 8);
ADD_STORE_BLOCK(src2, 16);
ADD_STORE_BLOCK(src3, 24);
}
#define TRANSFORM_COLS \
v32_a = vec_add(v32_a, v32_c); \
v32_d = vec_sub(v32_d, v32_b); \
v32_e = vec_sub(v32_a, v32_d); \
v32_e = vec_sra(v32_e, one); \
v32_b = vec_sub(v32_e, v32_b); \
v32_c = vec_sub(v32_e, v32_c); \
v32_a = vec_sub(v32_a, v32_b); \
v32_d = vec_add(v32_d, v32_c); \
v_a = vec_packs(v32_a, v32_b); \
v_c = vec_packs(v32_c, v32_d);
#define TRANSPOSE_WHT \
tmp_a = vec_mergeh(v_a, v_c); \
tmp_c = vec_mergel(v_a, v_c); \
v_a = vec_mergeh(tmp_a, tmp_c); \
v_c = vec_mergel(tmp_a, tmp_c);
void vpx_iwht4x4_16_add_vsx(const tran_low_t *input, uint8_t *dest,
int stride) {
int16x8_t v_a = load_tran_low(0, input);
int16x8_t v_c = load_tran_low(8 * sizeof(*input), input);
int16x8_t tmp_a, tmp_c;
uint16x8_t two = vec_splat_u16(2);
uint32x4_t one = vec_splat_u32(1);
int16x8_t tmp16_0, tmp16_1;
int32x4_t v32_a, v32_c, v32_d, v32_b, v32_e;
uint8x16_t dest0 = vec_vsx_ld(0, dest);
uint8x16_t dest1 = vec_vsx_ld(stride, dest);
uint8x16_t dest2 = vec_vsx_ld(2 * stride, dest);
uint8x16_t dest3 = vec_vsx_ld(3 * stride, dest);
int16x8_t d_u0 = (int16x8_t)unpack_to_u16_h(dest0);
int16x8_t d_u1 = (int16x8_t)unpack_to_u16_h(dest1);
int16x8_t d_u2 = (int16x8_t)unpack_to_u16_h(dest2);
int16x8_t d_u3 = (int16x8_t)unpack_to_u16_h(dest3);
uint8x16_t output_v;
uint8_t tmp_dest[16];
int i, j;
v_a = vec_sra(v_a, two);
v_c = vec_sra(v_c, two);
TRANSPOSE_WHT;
v32_a = vec_unpackh(v_a);
v32_c = vec_unpackl(v_a);
v32_d = vec_unpackh(v_c);
v32_b = vec_unpackl(v_c);
TRANSFORM_COLS;
TRANSPOSE_WHT;
v32_a = vec_unpackh(v_a);
v32_c = vec_unpackl(v_a);
v32_d = vec_unpackh(v_c);
v32_b = vec_unpackl(v_c);
TRANSFORM_COLS;
PACK_STORE(v_a, v_c);
}
void vp9_iadst4_vsx(int16x8_t *in, int16x8_t *out) {
int16x8_t sinpi_1_3_v, sinpi_4_2_v, sinpi_2_3_v, sinpi_1_4_v, sinpi_12_n3_v;
int32x4_t v_v[5], u_v[4];
int32x4_t zerov = vec_splat_s32(0);
int16x8_t tmp0, tmp1;
int16x8_t zero16v = vec_splat_s16(0);
uint32x4_t shift16 = vec_sl(vec_splat_u32(8), vec_splat_u32(1));
ROUND_SHIFT_INIT;
sinpi_1_3_v = vec_mergel(sinpi_1_9_v, sinpi_3_9_v);
sinpi_4_2_v = vec_mergel(sinpi_4_9_v, sinpi_2_9_v);
sinpi_2_3_v = vec_mergel(sinpi_2_9_v, sinpi_3_9_v);
sinpi_1_4_v = vec_mergel(sinpi_1_9_v, sinpi_4_9_v);
sinpi_12_n3_v = vec_mergel(vec_add(sinpi_1_9_v, sinpi_2_9_v),
vec_sub(zero16v, sinpi_3_9_v));
tmp0 = (int16x8_t)vec_mergeh((int32x4_t)in[0], (int32x4_t)in[1]);
tmp1 = (int16x8_t)vec_mergel((int32x4_t)in[0], (int32x4_t)in[1]);
in[0] = (int16x8_t)vec_mergeh((int32x4_t)tmp0, (int32x4_t)tmp1);
in[1] = (int16x8_t)vec_mergel((int32x4_t)tmp0, (int32x4_t)tmp1);
v_v[0] = vec_msum(in[0], sinpi_1_3_v, zerov);
v_v[1] = vec_msum(in[1], sinpi_4_2_v, zerov);
v_v[2] = vec_msum(in[0], sinpi_2_3_v, zerov);
v_v[3] = vec_msum(in[1], sinpi_1_4_v, zerov);
v_v[4] = vec_msum(in[0], sinpi_12_n3_v, zerov);
in[0] = vec_sub(in[0], in[1]);
in[1] = (int16x8_t)vec_sra((int32x4_t)in[1], shift16);
in[0] = vec_add(in[0], in[1]);
in[0] = (int16x8_t)vec_sl((int32x4_t)in[0], shift16);
u_v[0] = vec_add(v_v[0], v_v[1]);
u_v[1] = vec_sub(v_v[2], v_v[3]);
u_v[2] = vec_msum(in[0], sinpi_1_3_v, zerov);
u_v[3] = vec_sub(v_v[1], v_v[3]);
u_v[3] = vec_add(u_v[3], v_v[4]);
DCT_CONST_ROUND_SHIFT(u_v[0]);
DCT_CONST_ROUND_SHIFT(u_v[1]);
DCT_CONST_ROUND_SHIFT(u_v[2]);
DCT_CONST_ROUND_SHIFT(u_v[3]);
out[0] = vec_packs(u_v[0], u_v[1]);
out[1] = vec_packs(u_v[2], u_v[3]);
}
#define MSUM_ROUND_SHIFT(a, b, cospi) \
b = vec_msums(a, cospi, zerov); \
DCT_CONST_ROUND_SHIFT(b);
#define IADST_WRAPLOW(in0, in1, tmp0, tmp1, out, cospi) \
MSUM_ROUND_SHIFT(in0, tmp0, cospi); \
MSUM_ROUND_SHIFT(in1, tmp1, cospi); \
out = vec_packs(tmp0, tmp1);
void vp9_iadst8_vsx(int16x8_t *in, int16x8_t *out) {
int32x4_t tmp0[16], tmp1[16];
int32x4_t zerov = vec_splat_s32(0);
int16x8_t zero16v = vec_splat_s16(0);
int16x8_t cospi_p02_p30_v = vec_mergel(cospi2_v, cospi30_v);
int16x8_t cospi_p30_m02_v = vec_mergel(cospi30_v, cospi2m_v);
int16x8_t cospi_p10_p22_v = vec_mergel(cospi10_v, cospi22_v);
int16x8_t cospi_p22_m10_v = vec_mergel(cospi22_v, cospi10m_v);
int16x8_t cospi_p18_p14_v = vec_mergel(cospi18_v, cospi14_v);
int16x8_t cospi_p14_m18_v = vec_mergel(cospi14_v, cospi18m_v);
int16x8_t cospi_p26_p06_v = vec_mergel(cospi26_v, cospi6_v);
int16x8_t cospi_p06_m26_v = vec_mergel(cospi6_v, cospi26m_v);
int16x8_t cospi_p08_p24_v = vec_mergel(cospi8_v, cospi24_v);
int16x8_t cospi_p24_m08_v = vec_mergel(cospi24_v, cospi8m_v);
int16x8_t cospi_m24_p08_v = vec_mergel(cospi24m_v, cospi8_v);
int16x8_t cospi_p16_m16_v = vec_mergel(cospi16_v, cospi16m_v);
ROUND_SHIFT_INIT;
TRANSPOSE8x8(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]);
// stage 1
// interleave and multiply/add into 32-bit integer
in[0] = vec_mergeh(out[7], out[0]);
in[1] = vec_mergel(out[7], out[0]);
in[2] = vec_mergeh(out[5], out[2]);
in[3] = vec_mergel(out[5], out[2]);
in[4] = vec_mergeh(out[3], out[4]);
in[5] = vec_mergel(out[3], out[4]);
in[6] = vec_mergeh(out[1], out[6]);
in[7] = vec_mergel(out[1], out[6]);
tmp1[0] = vec_msum(in[0], cospi_p02_p30_v, zerov);
tmp1[1] = vec_msum(in[1], cospi_p02_p30_v, zerov);
tmp1[2] = vec_msum(in[0], cospi_p30_m02_v, zerov);
tmp1[3] = vec_msum(in[1], cospi_p30_m02_v, zerov);
tmp1[4] = vec_msum(in[2], cospi_p10_p22_v, zerov);
tmp1[5] = vec_msum(in[3], cospi_p10_p22_v, zerov);
tmp1[6] = vec_msum(in[2], cospi_p22_m10_v, zerov);
tmp1[7] = vec_msum(in[3], cospi_p22_m10_v, zerov);
tmp1[8] = vec_msum(in[4], cospi_p18_p14_v, zerov);
tmp1[9] = vec_msum(in[5], cospi_p18_p14_v, zerov);
tmp1[10] = vec_msum(in[4], cospi_p14_m18_v, zerov);
tmp1[11] = vec_msum(in[5], cospi_p14_m18_v, zerov);
tmp1[12] = vec_msum(in[6], cospi_p26_p06_v, zerov);
tmp1[13] = vec_msum(in[7], cospi_p26_p06_v, zerov);
tmp1[14] = vec_msum(in[6], cospi_p06_m26_v, zerov);
tmp1[15] = vec_msum(in[7], cospi_p06_m26_v, zerov);
tmp0[0] = vec_add(tmp1[0], tmp1[8]);
tmp0[1] = vec_add(tmp1[1], tmp1[9]);
tmp0[2] = vec_add(tmp1[2], tmp1[10]);
tmp0[3] = vec_add(tmp1[3], tmp1[11]);
tmp0[4] = vec_add(tmp1[4], tmp1[12]);
tmp0[5] = vec_add(tmp1[5], tmp1[13]);
tmp0[6] = vec_add(tmp1[6], tmp1[14]);
tmp0[7] = vec_add(tmp1[7], tmp1[15]);
tmp0[8] = vec_sub(tmp1[0], tmp1[8]);
tmp0[9] = vec_sub(tmp1[1], tmp1[9]);
tmp0[10] = vec_sub(tmp1[2], tmp1[10]);
tmp0[11] = vec_sub(tmp1[3], tmp1[11]);
tmp0[12] = vec_sub(tmp1[4], tmp1[12]);
tmp0[13] = vec_sub(tmp1[5], tmp1[13]);
tmp0[14] = vec_sub(tmp1[6], tmp1[14]);
tmp0[15] = vec_sub(tmp1[7], tmp1[15]);
// shift and rounding
DCT_CONST_ROUND_SHIFT(tmp0[0]);
DCT_CONST_ROUND_SHIFT(tmp0[1]);
DCT_CONST_ROUND_SHIFT(tmp0[2]);
DCT_CONST_ROUND_SHIFT(tmp0[3]);
DCT_CONST_ROUND_SHIFT(tmp0[4]);
DCT_CONST_ROUND_SHIFT(tmp0[5]);
DCT_CONST_ROUND_SHIFT(tmp0[6]);
DCT_CONST_ROUND_SHIFT(tmp0[7]);
DCT_CONST_ROUND_SHIFT(tmp0[8]);
DCT_CONST_ROUND_SHIFT(tmp0[9]);
DCT_CONST_ROUND_SHIFT(tmp0[10]);
DCT_CONST_ROUND_SHIFT(tmp0[11]);
DCT_CONST_ROUND_SHIFT(tmp0[12]);
DCT_CONST_ROUND_SHIFT(tmp0[13]);
DCT_CONST_ROUND_SHIFT(tmp0[14]);
DCT_CONST_ROUND_SHIFT(tmp0[15]);
// back to 16-bit
out[0] = vec_packs(tmp0[0], tmp0[1]);
out[1] = vec_packs(tmp0[2], tmp0[3]);
out[2] = vec_packs(tmp0[4], tmp0[5]);
out[3] = vec_packs(tmp0[6], tmp0[7]);
out[4] = vec_packs(tmp0[8], tmp0[9]);
out[5] = vec_packs(tmp0[10], tmp0[11]);
out[6] = vec_packs(tmp0[12], tmp0[13]);
out[7] = vec_packs(tmp0[14], tmp0[15]);
// stage 2
in[0] = vec_add(out[0], out[2]);
in[1] = vec_add(out[1], out[3]);
in[2] = vec_sub(out[0], out[2]);
in[3] = vec_sub(out[1], out[3]);
in[4] = vec_mergeh(out[4], out[5]);
in[5] = vec_mergel(out[4], out[5]);
in[6] = vec_mergeh(out[6], out[7]);
in[7] = vec_mergel(out[6], out[7]);
tmp1[0] = vec_msum(in[4], cospi_p08_p24_v, zerov);
tmp1[1] = vec_msum(in[5], cospi_p08_p24_v, zerov);
tmp1[2] = vec_msum(in[4], cospi_p24_m08_v, zerov);
tmp1[3] = vec_msum(in[5], cospi_p24_m08_v, zerov);
tmp1[4] = vec_msum(in[6], cospi_m24_p08_v, zerov);
tmp1[5] = vec_msum(in[7], cospi_m24_p08_v, zerov);
tmp1[6] = vec_msum(in[6], cospi_p08_p24_v, zerov);
tmp1[7] = vec_msum(in[7], cospi_p08_p24_v, zerov);
tmp0[0] = vec_add(tmp1[0], tmp1[4]);
tmp0[1] = vec_add(tmp1[1], tmp1[5]);
tmp0[2] = vec_add(tmp1[2], tmp1[6]);
tmp0[3] = vec_add(tmp1[3], tmp1[7]);
tmp0[4] = vec_sub(tmp1[0], tmp1[4]);
tmp0[5] = vec_sub(tmp1[1], tmp1[5]);
tmp0[6] = vec_sub(tmp1[2], tmp1[6]);
tmp0[7] = vec_sub(tmp1[3], tmp1[7]);
DCT_CONST_ROUND_SHIFT(tmp0[0]);
DCT_CONST_ROUND_SHIFT(tmp0[1]);
DCT_CONST_ROUND_SHIFT(tmp0[2]);
DCT_CONST_ROUND_SHIFT(tmp0[3]);
DCT_CONST_ROUND_SHIFT(tmp0[4]);
DCT_CONST_ROUND_SHIFT(tmp0[5]);
DCT_CONST_ROUND_SHIFT(tmp0[6]);
DCT_CONST_ROUND_SHIFT(tmp0[7]);
in[4] = vec_packs(tmp0[0], tmp0[1]);
in[5] = vec_packs(tmp0[2], tmp0[3]);
in[6] = vec_packs(tmp0[4], tmp0[5]);
in[7] = vec_packs(tmp0[6], tmp0[7]);
// stage 3
out[0] = vec_mergeh(in[2], in[3]);
out[1] = vec_mergel(in[2], in[3]);
out[2] = vec_mergeh(in[6], in[7]);
out[3] = vec_mergel(in[6], in[7]);
IADST_WRAPLOW(out[0], out[1], tmp0[0], tmp0[1], in[2], cospi16_v);
IADST_WRAPLOW(out[0], out[1], tmp0[0], tmp0[1], in[3], cospi_p16_m16_v);
IADST_WRAPLOW(out[2], out[3], tmp0[0], tmp0[1], in[6], cospi16_v);
IADST_WRAPLOW(out[2], out[3], tmp0[0], tmp0[1], in[7], cospi_p16_m16_v);
out[0] = in[0];
out[2] = in[6];
out[4] = in[3];
out[6] = in[5];
out[1] = vec_sub(zero16v, in[4]);
out[3] = vec_sub(zero16v, in[2]);
out[5] = vec_sub(zero16v, in[7]);
out[7] = vec_sub(zero16v, in[1]);
}
static void iadst16x8_vsx(int16x8_t *in, int16x8_t *out) {
int32x4_t tmp0[32], tmp1[32];
int16x8_t tmp16_0[8];
int16x8_t cospi_p01_p31 = vec_mergel(cospi1_v, cospi31_v);
int16x8_t cospi_p31_m01 = vec_mergel(cospi31_v, cospi1m_v);
int16x8_t cospi_p05_p27 = vec_mergel(cospi5_v, cospi27_v);
int16x8_t cospi_p27_m05 = vec_mergel(cospi27_v, cospi5m_v);
int16x8_t cospi_p09_p23 = vec_mergel(cospi9_v, cospi23_v);
int16x8_t cospi_p23_m09 = vec_mergel(cospi23_v, cospi9m_v);
int16x8_t cospi_p13_p19 = vec_mergel(cospi13_v, cospi19_v);
int16x8_t cospi_p19_m13 = vec_mergel(cospi19_v, cospi13m_v);
int16x8_t cospi_p17_p15 = vec_mergel(cospi17_v, cospi15_v);
int16x8_t cospi_p15_m17 = vec_mergel(cospi15_v, cospi17m_v);
int16x8_t cospi_p21_p11 = vec_mergel(cospi21_v, cospi11_v);
int16x8_t cospi_p11_m21 = vec_mergel(cospi11_v, cospi21m_v);
int16x8_t cospi_p25_p07 = vec_mergel(cospi25_v, cospi7_v);
int16x8_t cospi_p07_m25 = vec_mergel(cospi7_v, cospi25m_v);
int16x8_t cospi_p29_p03 = vec_mergel(cospi29_v, cospi3_v);
int16x8_t cospi_p03_m29 = vec_mergel(cospi3_v, cospi29m_v);
int16x8_t cospi_p04_p28 = vec_mergel(cospi4_v, cospi28_v);
int16x8_t cospi_p28_m04 = vec_mergel(cospi28_v, cospi4m_v);
int16x8_t cospi_p20_p12 = vec_mergel(cospi20_v, cospi12_v);
int16x8_t cospi_p12_m20 = vec_mergel(cospi12_v, cospi20m_v);
int16x8_t cospi_m28_p04 = vec_mergel(cospi28m_v, cospi4_v);
int16x8_t cospi_m12_p20 = vec_mergel(cospi12m_v, cospi20_v);
int16x8_t cospi_p08_p24 = vec_mergel(cospi8_v, cospi24_v);
int16x8_t cospi_p24_m08 = vec_mergel(cospi24_v, cospi8m_v);
int16x8_t cospi_m24_p08 = vec_mergel(cospi24m_v, cospi8_v);
int32x4_t zerov = vec_splat_s32(0);
ROUND_SHIFT_INIT;
tmp16_0[0] = vec_mergeh(in[15], in[0]);
tmp16_0[1] = vec_mergel(in[15], in[0]);
tmp16_0[2] = vec_mergeh(in[13], in[2]);
tmp16_0[3] = vec_mergel(in[13], in[2]);
tmp16_0[4] = vec_mergeh(in[11], in[4]);
tmp16_0[5] = vec_mergel(in[11], in[4]);
tmp16_0[6] = vec_mergeh(in[9], in[6]);
tmp16_0[7] = vec_mergel(in[9], in[6]);
tmp16_0[8] = vec_mergeh(in[7], in[8]);
tmp16_0[9] = vec_mergel(in[7], in[8]);
tmp16_0[10] = vec_mergeh(in[5], in[10]);
tmp16_0[11] = vec_mergel(in[5], in[10]);
tmp16_0[12] = vec_mergeh(in[3], in[12]);
tmp16_0[13] = vec_mergel(in[3], in[12]);
tmp16_0[14] = vec_mergeh(in[1], in[14]);
tmp16_0[15] = vec_mergel(in[1], in[14]);
tmp0[0] = vec_msum(tmp16_0[0], cospi_p01_p31, zerov);
tmp0[1] = vec_msum(tmp16_0[1], cospi_p01_p31, zerov);
tmp0[2] = vec_msum(tmp16_0[0], cospi_p31_m01, zerov);
tmp0[3] = vec_msum(tmp16_0[1], cospi_p31_m01, zerov);
tmp0[4] = vec_msum(tmp16_0[2], cospi_p05_p27, zerov);
tmp0[5] = vec_msum(tmp16_0[3], cospi_p05_p27, zerov);
tmp0[6] = vec_msum(tmp16_0[2], cospi_p27_m05, zerov);
tmp0[7] = vec_msum(tmp16_0[3], cospi_p27_m05, zerov);
tmp0[8] = vec_msum(tmp16_0[4], cospi_p09_p23, zerov);
tmp0[9] = vec_msum(tmp16_0[5], cospi_p09_p23, zerov);
tmp0[10] = vec_msum(tmp16_0[4], cospi_p23_m09, zerov);
tmp0[11] = vec_msum(tmp16_0[5], cospi_p23_m09, zerov);
tmp0[12] = vec_msum(tmp16_0[6], cospi_p13_p19, zerov);
tmp0[13] = vec_msum(tmp16_0[7], cospi_p13_p19, zerov);
tmp0[14] = vec_msum(tmp16_0[6], cospi_p19_m13, zerov);
tmp0[15] = vec_msum(tmp16_0[7], cospi_p19_m13, zerov);
tmp0[16] = vec_msum(tmp16_0[8], cospi_p17_p15, zerov);
tmp0[17] = vec_msum(tmp16_0[9], cospi_p17_p15, zerov);
tmp0[18] = vec_msum(tmp16_0[8], cospi_p15_m17, zerov);
tmp0[19] = vec_msum(tmp16_0[9], cospi_p15_m17, zerov);
tmp0[20] = vec_msum(tmp16_0[10], cospi_p21_p11, zerov);
tmp0[21] = vec_msum(tmp16_0[11], cospi_p21_p11, zerov);
tmp0[22] = vec_msum(tmp16_0[10], cospi_p11_m21, zerov);
tmp0[23] = vec_msum(tmp16_0[11], cospi_p11_m21, zerov);
tmp0[24] = vec_msum(tmp16_0[12], cospi_p25_p07, zerov);
tmp0[25] = vec_msum(tmp16_0[13], cospi_p25_p07, zerov);
tmp0[26] = vec_msum(tmp16_0[12], cospi_p07_m25, zerov);
tmp0[27] = vec_msum(tmp16_0[13], cospi_p07_m25, zerov);
tmp0[28] = vec_msum(tmp16_0[14], cospi_p29_p03, zerov);
tmp0[29] = vec_msum(tmp16_0[15], cospi_p29_p03, zerov);
tmp0[30] = vec_msum(tmp16_0[14], cospi_p03_m29, zerov);
tmp0[31] = vec_msum(tmp16_0[15], cospi_p03_m29, zerov);
tmp1[0] = vec_add(tmp0[0], tmp0[16]);
tmp1[1] = vec_add(tmp0[1], tmp0[17]);
tmp1[2] = vec_add(tmp0[2], tmp0[18]);
tmp1[3] = vec_add(tmp0[3], tmp0[19]);
tmp1[4] = vec_add(tmp0[4], tmp0[20]);
tmp1[5] = vec_add(tmp0[5], tmp0[21]);
tmp1[6] = vec_add(tmp0[6], tmp0[22]);
tmp1[7] = vec_add(tmp0[7], tmp0[23]);
tmp1[8] = vec_add(tmp0[8], tmp0[24]);
tmp1[9] = vec_add(tmp0[9], tmp0[25]);
tmp1[10] = vec_add(tmp0[10], tmp0[26]);
tmp1[11] = vec_add(tmp0[11], tmp0[27]);
tmp1[12] = vec_add(tmp0[12], tmp0[28]);
tmp1[13] = vec_add(tmp0[13], tmp0[29]);
tmp1[14] = vec_add(tmp0[14], tmp0[30]);
tmp1[15] = vec_add(tmp0[15], tmp0[31]);
tmp1[16] = vec_sub(tmp0[0], tmp0[16]);
tmp1[17] = vec_sub(tmp0[1], tmp0[17]);
tmp1[18] = vec_sub(tmp0[2], tmp0[18]);
tmp1[19] = vec_sub(tmp0[3], tmp0[19]);
tmp1[20] = vec_sub(tmp0[4], tmp0[20]);
tmp1[21] = vec_sub(tmp0[5], tmp0[21]);
tmp1[22] = vec_sub(tmp0[6], tmp0[22]);
tmp1[23] = vec_sub(tmp0[7], tmp0[23]);
tmp1[24] = vec_sub(tmp0[8], tmp0[24]);
tmp1[25] = vec_sub(tmp0[9], tmp0[25]);
tmp1[26] = vec_sub(tmp0[10], tmp0[26]);
tmp1[27] = vec_sub(tmp0[11], tmp0[27]);
tmp1[28] = vec_sub(tmp0[12], tmp0[28]);
tmp1[29] = vec_sub(tmp0[13], tmp0[29]);
tmp1[30] = vec_sub(tmp0[14], tmp0[30]);
tmp1[31] = vec_sub(tmp0[15], tmp0[31]);
DCT_CONST_ROUND_SHIFT(tmp1[0]);
DCT_CONST_ROUND_SHIFT(tmp1[1]);
DCT_CONST_ROUND_SHIFT(tmp1[2]);
DCT_CONST_ROUND_SHIFT(tmp1[3]);
DCT_CONST_ROUND_SHIFT(tmp1[4]);
DCT_CONST_ROUND_SHIFT(tmp1[5]);
DCT_CONST_ROUND_SHIFT(tmp1[6]);
DCT_CONST_ROUND_SHIFT(tmp1[7]);
DCT_CONST_ROUND_SHIFT(tmp1[8]);
DCT_CONST_ROUND_SHIFT(tmp1[9]);
DCT_CONST_ROUND_SHIFT(tmp1[10]);
DCT_CONST_ROUND_SHIFT(tmp1[11]);
DCT_CONST_ROUND_SHIFT(tmp1[12]);
DCT_CONST_ROUND_SHIFT(tmp1[13]);
DCT_CONST_ROUND_SHIFT(tmp1[14]);
DCT_CONST_ROUND_SHIFT(tmp1[15]);
DCT_CONST_ROUND_SHIFT(tmp1[16]);
DCT_CONST_ROUND_SHIFT(tmp1[17]);
DCT_CONST_ROUND_SHIFT(tmp1[18]);
DCT_CONST_ROUND_SHIFT(tmp1[19]);
DCT_CONST_ROUND_SHIFT(tmp1[20]);
DCT_CONST_ROUND_SHIFT(tmp1[21]);
DCT_CONST_ROUND_SHIFT(tmp1[22]);
DCT_CONST_ROUND_SHIFT(tmp1[23]);
DCT_CONST_ROUND_SHIFT(tmp1[24]);
DCT_CONST_ROUND_SHIFT(tmp1[25]);
DCT_CONST_ROUND_SHIFT(tmp1[26]);
DCT_CONST_ROUND_SHIFT(tmp1[27]);
DCT_CONST_ROUND_SHIFT(tmp1[28]);
DCT_CONST_ROUND_SHIFT(tmp1[29]);
DCT_CONST_ROUND_SHIFT(tmp1[30]);
DCT_CONST_ROUND_SHIFT(tmp1[31]);
in[0] = vec_packs(tmp1[0], tmp1[1]);
in[1] = vec_packs(tmp1[2], tmp1[3]);
in[2] = vec_packs(tmp1[4], tmp1[5]);
in[3] = vec_packs(tmp1[6], tmp1[7]);
in[4] = vec_packs(tmp1[8], tmp1[9]);
in[5] = vec_packs(tmp1[10], tmp1[11]);
in[6] = vec_packs(tmp1[12], tmp1[13]);
in[7] = vec_packs(tmp1[14], tmp1[15]);
in[8] = vec_packs(tmp1[16], tmp1[17]);
in[9] = vec_packs(tmp1[18], tmp1[19]);
in[10] = vec_packs(tmp1[20], tmp1[21]);
in[11] = vec_packs(tmp1[22], tmp1[23]);
in[12] = vec_packs(tmp1[24], tmp1[25]);
in[13] = vec_packs(tmp1[26], tmp1[27]);
in[14] = vec_packs(tmp1[28], tmp1[29]);
in[15] = vec_packs(tmp1[30], tmp1[31]);
// stage 2
tmp16_0[0] = vec_mergeh(in[8], in[9]);
tmp16_0[1] = vec_mergel(in[8], in[9]);
tmp16_0[2] = vec_mergeh(in[10], in[11]);
tmp16_0[3] = vec_mergel(in[10], in[11]);
tmp16_0[4] = vec_mergeh(in[12], in[13]);
tmp16_0[5] = vec_mergel(in[12], in[13]);
tmp16_0[6] = vec_mergeh(in[14], in[15]);
tmp16_0[7] = vec_mergel(in[14], in[15]);
tmp0[0] = vec_msum(tmp16_0[0], cospi_p04_p28, zerov);
tmp0[1] = vec_msum(tmp16_0[1], cospi_p04_p28, zerov);
tmp0[2] = vec_msum(tmp16_0[0], cospi_p28_m04, zerov);
tmp0[3] = vec_msum(tmp16_0[1], cospi_p28_m04, zerov);
tmp0[4] = vec_msum(tmp16_0[2], cospi_p20_p12, zerov);
tmp0[5] = vec_msum(tmp16_0[3], cospi_p20_p12, zerov);
tmp0[6] = vec_msum(tmp16_0[2], cospi_p12_m20, zerov);
tmp0[7] = vec_msum(tmp16_0[3], cospi_p12_m20, zerov);
tmp0[8] = vec_msum(tmp16_0[4], cospi_m28_p04, zerov);
tmp0[9] = vec_msum(tmp16_0[5], cospi_m28_p04, zerov);
tmp0[10] = vec_msum(tmp16_0[4], cospi_p04_p28, zerov);
tmp0[11] = vec_msum(tmp16_0[5], cospi_p04_p28, zerov);
tmp0[12] = vec_msum(tmp16_0[6], cospi_m12_p20, zerov);
tmp0[13] = vec_msum(tmp16_0[7], cospi_m12_p20, zerov);
tmp0[14] = vec_msum(tmp16_0[6], cospi_p20_p12, zerov);
tmp0[15] = vec_msum(tmp16_0[7], cospi_p20_p12, zerov);
tmp1[0] = vec_add(tmp0[0], tmp0[8]);
tmp1[1] = vec_add(tmp0[1], tmp0[9]);
tmp1[2] = vec_add(tmp0[2], tmp0[10]);
tmp1[3] = vec_add(tmp0[3], tmp0[11]);
tmp1[4] = vec_add(tmp0[4], tmp0[12]);
tmp1[5] = vec_add(tmp0[5], tmp0[13]);
tmp1[6] = vec_add(tmp0[6], tmp0[14]);
tmp1[7] = vec_add(tmp0[7], tmp0[15]);
tmp1[8] = vec_sub(tmp0[0], tmp0[8]);
tmp1[9] = vec_sub(tmp0[1], tmp0[9]);
tmp1[10] = vec_sub(tmp0[2], tmp0[10]);
tmp1[11] = vec_sub(tmp0[3], tmp0[11]);
tmp1[12] = vec_sub(tmp0[4], tmp0[12]);
tmp1[13] = vec_sub(tmp0[5], tmp0[13]);
tmp1[14] = vec_sub(tmp0[6], tmp0[14]);
tmp1[15] = vec_sub(tmp0[7], tmp0[15]);
DCT_CONST_ROUND_SHIFT(tmp1[0]);
DCT_CONST_ROUND_SHIFT(tmp1[1]);
DCT_CONST_ROUND_SHIFT(tmp1[2]);
DCT_CONST_ROUND_SHIFT(tmp1[3]);
DCT_CONST_ROUND_SHIFT(tmp1[4]);
DCT_CONST_ROUND_SHIFT(tmp1[5]);
DCT_CONST_ROUND_SHIFT(tmp1[6]);
DCT_CONST_ROUND_SHIFT(tmp1[7]);
DCT_CONST_ROUND_SHIFT(tmp1[8]);
DCT_CONST_ROUND_SHIFT(tmp1[9]);
DCT_CONST_ROUND_SHIFT(tmp1[10]);
DCT_CONST_ROUND_SHIFT(tmp1[11]);
DCT_CONST_ROUND_SHIFT(tmp1[12]);
DCT_CONST_ROUND_SHIFT(tmp1[13]);
DCT_CONST_ROUND_SHIFT(tmp1[14]);
DCT_CONST_ROUND_SHIFT(tmp1[15]);
tmp16_0[0] = vec_add(in[0], in[4]);
tmp16_0[1] = vec_add(in[1], in[5]);
tmp16_0[2] = vec_add(in[2], in[6]);
tmp16_0[3] = vec_add(in[3], in[7]);
tmp16_0[4] = vec_sub(in[0], in[4]);
tmp16_0[5] = vec_sub(in[1], in[5]);
tmp16_0[6] = vec_sub(in[2], in[6]);
tmp16_0[7] = vec_sub(in[3], in[7]);
tmp16_0[8] = vec_packs(tmp1[0], tmp1[1]);
tmp16_0[9] = vec_packs(tmp1[2], tmp1[3]);
tmp16_0[10] = vec_packs(tmp1[4], tmp1[5]);
tmp16_0[11] = vec_packs(tmp1[6], tmp1[7]);
tmp16_0[12] = vec_packs(tmp1[8], tmp1[9]);
tmp16_0[13] = vec_packs(tmp1[10], tmp1[11]);
tmp16_0[14] = vec_packs(tmp1[12], tmp1[13]);
tmp16_0[15] = vec_packs(tmp1[14], tmp1[15]);
// stage 3
in[0] = vec_mergeh(tmp16_0[4], tmp16_0[5]);
in[1] = vec_mergel(tmp16_0[4], tmp16_0[5]);
in[2] = vec_mergeh(tmp16_0[6], tmp16_0[7]);
in[3] = vec_mergel(tmp16_0[6], tmp16_0[7]);
in[4] = vec_mergeh(tmp16_0[12], tmp16_0[13]);
in[5] = vec_mergel(tmp16_0[12], tmp16_0[13]);
in[6] = vec_mergeh(tmp16_0[14], tmp16_0[15]);
in[7] = vec_mergel(tmp16_0[14], tmp16_0[15]);
tmp0[0] = vec_msum(in[0], cospi_p08_p24, zerov);
tmp0[1] = vec_msum(in[1], cospi_p08_p24, zerov);
tmp0[2] = vec_msum(in[0], cospi_p24_m08, zerov);
tmp0[3] = vec_msum(in[1], cospi_p24_m08, zerov);
tmp0[4] = vec_msum(in[2], cospi_m24_p08, zerov);
tmp0[5] = vec_msum(in[3], cospi_m24_p08, zerov);
tmp0[6] = vec_msum(in[2], cospi_p08_p24, zerov);
tmp0[7] = vec_msum(in[3], cospi_p08_p24, zerov);
tmp0[8] = vec_msum(in[4], cospi_p08_p24, zerov);
tmp0[9] = vec_msum(in[5], cospi_p08_p24, zerov);
tmp0[10] = vec_msum(in[4], cospi_p24_m08, zerov);
tmp0[11] = vec_msum(in[5], cospi_p24_m08, zerov);
tmp0[12] = vec_msum(in[6], cospi_m24_p08, zerov);
tmp0[13] = vec_msum(in[7], cospi_m24_p08, zerov);
tmp0[14] = vec_msum(in[6], cospi_p08_p24, zerov);
tmp0[15] = vec_msum(in[7], cospi_p08_p24, zerov);
tmp1[0] = vec_add(tmp0[0], tmp0[4]);
tmp1[1] = vec_add(tmp0[1], tmp0[5]);
tmp1[2] = vec_add(tmp0[2], tmp0[6]);
tmp1[3] = vec_add(tmp0[3], tmp0[7]);
tmp1[4] = vec_sub(tmp0[0], tmp0[4]);
tmp1[5] = vec_sub(tmp0[1], tmp0[5]);
tmp1[6] = vec_sub(tmp0[2], tmp0[6]);
tmp1[7] = vec_sub(tmp0[3], tmp0[7]);
tmp1[8] = vec_add(tmp0[8], tmp0[12]);
tmp1[9] = vec_add(tmp0[9], tmp0[13]);
tmp1[10] = vec_add(tmp0[10], tmp0[14]);
tmp1[11] = vec_add(tmp0[11], tmp0[15]);
tmp1[12] = vec_sub(tmp0[8], tmp0[12]);
tmp1[13] = vec_sub(tmp0[9], tmp0[13]);
tmp1[14] = vec_sub(tmp0[10], tmp0[14]);
tmp1[15] = vec_sub(tmp0[11], tmp0[15]);
DCT_CONST_ROUND_SHIFT(tmp1[0]);
DCT_CONST_ROUND_SHIFT(tmp1[1]);
DCT_CONST_ROUND_SHIFT(tmp1[2]);
DCT_CONST_ROUND_SHIFT(tmp1[3]);
DCT_CONST_ROUND_SHIFT(tmp1[4]);
DCT_CONST_ROUND_SHIFT(tmp1[5]);
DCT_CONST_ROUND_SHIFT(tmp1[6]);
DCT_CONST_ROUND_SHIFT(tmp1[7]);
DCT_CONST_ROUND_SHIFT(tmp1[8]);
DCT_CONST_ROUND_SHIFT(tmp1[9]);
DCT_CONST_ROUND_SHIFT(tmp1[10]);
DCT_CONST_ROUND_SHIFT(tmp1[11]);
DCT_CONST_ROUND_SHIFT(tmp1[12]);
DCT_CONST_ROUND_SHIFT(tmp1[13]);
DCT_CONST_ROUND_SHIFT(tmp1[14]);
DCT_CONST_ROUND_SHIFT(tmp1[15]);
in[0] = vec_add(tmp16_0[0], tmp16_0[2]);
in[1] = vec_add(tmp16_0[1], tmp16_0[3]);
in[2] = vec_sub(tmp16_0[0], tmp16_0[2]);
in[3] = vec_sub(tmp16_0[1], tmp16_0[3]);
in[4] = vec_packs(tmp1[0], tmp1[1]);
in[5] = vec_packs(tmp1[2], tmp1[3]);
in[6] = vec_packs(tmp1[4], tmp1[5]);
in[7] = vec_packs(tmp1[6], tmp1[7]);
in[8] = vec_add(tmp16_0[8], tmp16_0[10]);
in[9] = vec_add(tmp16_0[9], tmp16_0[11]);
in[10] = vec_sub(tmp16_0[8], tmp16_0[10]);
in[11] = vec_sub(tmp16_0[9], tmp16_0[11]);
in[12] = vec_packs(tmp1[8], tmp1[9]);
in[13] = vec_packs(tmp1[10], tmp1[11]);
in[14] = vec_packs(tmp1[12], tmp1[13]);
in[15] = vec_packs(tmp1[14], tmp1[15]);
// stage 4
out[0] = vec_mergeh(in[2], in[3]);
out[1] = vec_mergel(in[2], in[3]);
out[2] = vec_mergeh(in[6], in[7]);
out[3] = vec_mergel(in[6], in[7]);
out[4] = vec_mergeh(in[10], in[11]);
out[5] = vec_mergel(in[10], in[11]);
out[6] = vec_mergeh(in[14], in[15]);
out[7] = vec_mergel(in[14], in[15]);
}
void vpx_iadst16_vsx(int16x8_t *src0, int16x8_t *src1) {
int16x8_t tmp0[16], tmp1[16], tmp2[8];
int32x4_t tmp3, tmp4;
int16x8_t zero16v = vec_splat_s16(0);
int32x4_t zerov = vec_splat_s32(0);
int16x8_t cospi_p16_m16 = vec_mergel(cospi16_v, cospi16m_v);
int16x8_t cospi_m16_p16 = vec_mergel(cospi16m_v, cospi16_v);
ROUND_SHIFT_INIT;
TRANSPOSE8x8(src0[0], src0[2], src0[4], src0[6], src0[8], src0[10], src0[12],
src0[14], tmp0[0], tmp0[1], tmp0[2], tmp0[3], tmp0[4], tmp0[5],
tmp0[6], tmp0[7]);
TRANSPOSE8x8(src1[0], src1[2], src1[4], src1[6], src1[8], src1[10], src1[12],
src1[14], tmp1[0], tmp1[1], tmp1[2], tmp1[3], tmp1[4], tmp1[5],
tmp1[6], tmp1[7]);
TRANSPOSE8x8(src0[1], src0[3], src0[5], src0[7], src0[9], src0[11], src0[13],
src0[15], tmp0[8], tmp0[9], tmp0[10], tmp0[11], tmp0[12],
tmp0[13], tmp0[14], tmp0[15]);
TRANSPOSE8x8(src1[1], src1[3], src1[5], src1[7], src1[9], src1[11], src1[13],
src1[15], tmp1[8], tmp1[9], tmp1[10], tmp1[11], tmp1[12],
tmp1[13], tmp1[14], tmp1[15]);
iadst16x8_vsx(tmp0, tmp2);
IADST_WRAPLOW(tmp2[0], tmp2[1], tmp3, tmp4, src0[14], cospi16m_v);
IADST_WRAPLOW(tmp2[0], tmp2[1], tmp3, tmp4, src1[0], cospi_p16_m16);
IADST_WRAPLOW(tmp2[2], tmp2[3], tmp3, tmp4, src0[8], cospi16_v);
IADST_WRAPLOW(tmp2[2], tmp2[3], tmp3, tmp4, src1[6], cospi_m16_p16);
IADST_WRAPLOW(tmp2[4], tmp2[5], tmp3, tmp4, src0[12], cospi16_v);
IADST_WRAPLOW(tmp2[4], tmp2[5], tmp3, tmp4, src1[2], cospi_m16_p16);
IADST_WRAPLOW(tmp2[6], tmp2[7], tmp3, tmp4, src0[10], cospi16m_v);
IADST_WRAPLOW(tmp2[6], tmp2[7], tmp3, tmp4, src1[4], cospi_p16_m16);
src0[0] = tmp0[0];
src0[2] = vec_sub(zero16v, tmp0[8]);
src0[4] = tmp0[12];
src0[6] = vec_sub(zero16v, tmp0[4]);
src1[8] = tmp0[5];
src1[10] = vec_sub(zero16v, tmp0[13]);
src1[12] = tmp0[9];
src1[14] = vec_sub(zero16v, tmp0[1]);
iadst16x8_vsx(tmp1, tmp2);
IADST_WRAPLOW(tmp2[0], tmp2[1], tmp3, tmp4, src0[15], cospi16m_v);
IADST_WRAPLOW(tmp2[0], tmp2[1], tmp3, tmp4, src1[1], cospi_p16_m16);
IADST_WRAPLOW(tmp2[2], tmp2[3], tmp3, tmp4, src0[9], cospi16_v);
IADST_WRAPLOW(tmp2[2], tmp2[3], tmp3, tmp4, src1[7], cospi_m16_p16);
IADST_WRAPLOW(tmp2[4], tmp2[5], tmp3, tmp4, src0[13], cospi16_v);
IADST_WRAPLOW(tmp2[4], tmp2[5], tmp3, tmp4, src1[3], cospi_m16_p16);
IADST_WRAPLOW(tmp2[6], tmp2[7], tmp3, tmp4, src0[11], cospi16m_v);
IADST_WRAPLOW(tmp2[6], tmp2[7], tmp3, tmp4, src1[5], cospi_p16_m16);
src0[1] = tmp1[0];
src0[3] = vec_sub(zero16v, tmp1[8]);
src0[5] = tmp1[12];
src0[7] = vec_sub(zero16v, tmp1[4]);
src1[9] = tmp1[5];
src1[11] = vec_sub(zero16v, tmp1[13]);
src1[13] = tmp1[9];
src1[15] = vec_sub(zero16v, tmp1[1]);
}