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FFmpeg/libswscale/loongarch/swscale_lasx.c

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/*
* Copyright (C) 2022 Loongson Technology Corporation Limited
* Contributed by Hao Chen(chenhao@loongson.cn)
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "swscale_loongarch.h"
#include "libavutil/loongarch/loongson_intrinsics.h"
#include "libavutil/intreadwrite.h"
#define SCALE_8_16(_sh) \
{ \
src0 = __lasx_xvldrepl_d(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_d(src + filterPos[1], 0); \
src2 = __lasx_xvldrepl_d(src + filterPos[2], 0); \
src3 = __lasx_xvldrepl_d(src + filterPos[3], 0); \
src4 = __lasx_xvldrepl_d(src + filterPos[4], 0); \
src5 = __lasx_xvldrepl_d(src + filterPos[5], 0); \
src6 = __lasx_xvldrepl_d(src + filterPos[6], 0); \
src7 = __lasx_xvldrepl_d(src + filterPos[7], 0); \
src8 = __lasx_xvldrepl_d(src + filterPos[8], 0); \
src9 = __lasx_xvldrepl_d(src + filterPos[9], 0); \
src10 = __lasx_xvldrepl_d(src + filterPos[10], 0); \
src11 = __lasx_xvldrepl_d(src + filterPos[11], 0); \
src12 = __lasx_xvldrepl_d(src + filterPos[12], 0); \
src13 = __lasx_xvldrepl_d(src + filterPos[13], 0); \
src14 = __lasx_xvldrepl_d(src + filterPos[14], 0); \
src15 = __lasx_xvldrepl_d(src + filterPos[15], 0); \
DUP4_ARG2(__lasx_xvld, filter, 0, filter, 32, filter, 64, \
filter, 96, filter0, filter1, filter2, filter3); \
DUP4_ARG2(__lasx_xvld, filter, 128, filter, 160, \
filter, 192, filter, 224, filter4, \
filter5, filter6, filter7); \
DUP4_ARG2(__lasx_xvilvl_d, src1, src0, src3, src2, \
src5, src4, src7, src6, src0, src2, src4, src6); \
DUP4_ARG2(__lasx_xvilvl_d, src9, src8, src11, src10, \
src13, src12, src15, src14, src8, src10, src12, src14); \
DUP4_ARG1(__lasx_vext2xv_hu_bu, src0, src2, src4, src6, \
src0, src2, src4, src6); \
DUP4_ARG1(__lasx_vext2xv_hu_bu, src8, src10, src12, \
src14, src8, src10, src12, src14); \
DUP4_ARG2(__lasx_xvdp2_w_h, filter0, src0, filter1, src2, \
filter2, src4, filter3, src6, src0, src1, src2, src3); \
DUP4_ARG2(__lasx_xvdp2_w_h, filter4, src8, filter5, src10, \
filter6, src12, filter7, src14, src4, src5, src6, src7);\
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src2 = __lasx_xvhaddw_d_w(src2, src2); \
src3 = __lasx_xvhaddw_d_w(src3, src3); \
src4 = __lasx_xvhaddw_d_w(src4, src4); \
src5 = __lasx_xvhaddw_d_w(src5, src5); \
src6 = __lasx_xvhaddw_d_w(src6, src6); \
src7 = __lasx_xvhaddw_d_w(src7, src7); \
DUP4_ARG2(__lasx_xvpickev_w, src1, src0, src3, src2, \
src5, src4, src7, src6, src0, src1, src2, src3); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src2 = __lasx_xvhaddw_d_w(src2, src2); \
src3 = __lasx_xvhaddw_d_w(src3, src3); \
src0 = __lasx_xvpickev_w(src1, src0); \
src1 = __lasx_xvpickev_w(src3, src2); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src1 = __lasx_xvsrai_w(src1, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
src1 = __lasx_xvmin_w(src1, vmax); \
src0 = __lasx_xvperm_w(src0, shuf); \
src1 = __lasx_xvperm_w(src1, shuf); \
src0 = __lasx_xvpickev_h(src1, src0); \
src0 = __lasx_xvpermi_d(src0, 0xd8); \
__lasx_xvst(src0, dst, 0); \
filterPos += 16; \
filter += 128; \
dst += 16; \
}
#define SCALE_8_8(_sh) \
{ \
src0 = __lasx_xvldrepl_d(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_d(src + filterPos[1], 0); \
src2 = __lasx_xvldrepl_d(src + filterPos[2], 0); \
src3 = __lasx_xvldrepl_d(src + filterPos[3], 0); \
src4 = __lasx_xvldrepl_d(src + filterPos[4], 0); \
src5 = __lasx_xvldrepl_d(src + filterPos[5], 0); \
src6 = __lasx_xvldrepl_d(src + filterPos[6], 0); \
src7 = __lasx_xvldrepl_d(src + filterPos[7], 0); \
DUP4_ARG2(__lasx_xvld, filter, 0, filter, 32, filter, 64, \
filter, 96, filter0, filter1, filter2, filter3); \
filterPos += 8; \
filter += 64; \
DUP4_ARG2(__lasx_xvilvl_d, src1, src0, src3, src2, \
src5, src4, src7, src6, src0, src2, src4, src6); \
DUP4_ARG1(__lasx_vext2xv_hu_bu, src0, src2, src4, src6, \
src0, src2, src4, src6); \
DUP4_ARG2(__lasx_xvdp2_w_h, filter0, src0, filter1, src2, \
filter2, src4, filter3, src6, src0, src1, src2,src3); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src2 = __lasx_xvhaddw_d_w(src2, src2); \
src3 = __lasx_xvhaddw_d_w(src3, src3); \
src0 = __lasx_xvpickev_w(src1, src0); \
src1 = __lasx_xvpickev_w(src3, src2); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src0 = __lasx_xvpickev_w(src1, src0); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
src0 = __lasx_xvperm_w(src0, shuf); \
}
#define SCALE_8_4(_sh) \
{ \
src0 = __lasx_xvldrepl_d(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_d(src + filterPos[1], 0); \
src2 = __lasx_xvldrepl_d(src + filterPos[2], 0); \
src3 = __lasx_xvldrepl_d(src + filterPos[3], 0); \
filter0 = __lasx_xvld(filter, 0); \
filter1 = __lasx_xvld(filter, 32); \
filterPos += 4; \
filter += 32; \
src0 = __lasx_xvilvl_d(src1, src0); \
src2 = __lasx_xvilvl_d(src3, src2); \
src0 = __lasx_vext2xv_hu_bu(src0); \
src2 = __lasx_vext2xv_hu_bu(src2); \
src0 = __lasx_xvdp2_w_h(src0, filter0); \
src1 = __lasx_xvdp2_w_h(src2, filter1); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src0 = __lasx_xvpickev_w(src1, src0); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src0 = __lasx_xvpickev_w(src0, src0); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
src0 = __lasx_xvperm_w(src0, shuf); \
}
#define SCALE_8_2(_sh) \
{ \
src0 = __lasx_xvldrepl_d(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_d(src + filterPos[1], 0); \
filter0 = __lasx_xvld(filter, 0); \
src0 = __lasx_xvilvl_d(src1, src0); \
src0 = __lasx_vext2xv_hu_bu(src0); \
src0 = __lasx_xvdp2_w_h(filter0, src0); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src0 = __lasx_xvhaddw_q_d(src0, src0); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
dst[0] = __lasx_xvpickve2gr_w(src0, 0); \
dst[1] = __lasx_xvpickve2gr_w(src0, 4); \
filterPos += 2; \
filter += 16; \
dst += 2; \
}
#define SCALE_4_16(_sh) \
{ \
src0 = __lasx_xvldrepl_w(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_w(src + filterPos[1], 0); \
src2 = __lasx_xvldrepl_w(src + filterPos[2], 0); \
src3 = __lasx_xvldrepl_w(src + filterPos[3], 0); \
src4 = __lasx_xvldrepl_w(src + filterPos[4], 0); \
src5 = __lasx_xvldrepl_w(src + filterPos[5], 0); \
src6 = __lasx_xvldrepl_w(src + filterPos[6], 0); \
src7 = __lasx_xvldrepl_w(src + filterPos[7], 0); \
src8 = __lasx_xvldrepl_w(src + filterPos[8], 0); \
src9 = __lasx_xvldrepl_w(src + filterPos[9], 0); \
src10 = __lasx_xvldrepl_w(src + filterPos[10], 0); \
src11 = __lasx_xvldrepl_w(src + filterPos[11], 0); \
src12 = __lasx_xvldrepl_w(src + filterPos[12], 0); \
src13 = __lasx_xvldrepl_w(src + filterPos[13], 0); \
src14 = __lasx_xvldrepl_w(src + filterPos[14], 0); \
src15 = __lasx_xvldrepl_w(src + filterPos[15], 0); \
DUP4_ARG2(__lasx_xvld, filter, 0, filter, 32, filter, 64, \
filter, 96, filter0, filter1, filter2, filter3); \
DUP4_ARG2(__lasx_xvilvl_w, src1, src0, src3, src2, src5, \
src4, src7, src6, src0, src2, src4, src6); \
DUP4_ARG2(__lasx_xvilvl_w, src9, src8, src11, src10, src13, \
src12, src15, src14, src8, src10, src12, src14); \
DUP4_ARG2(__lasx_xvilvl_d, src2, src0, src6, src4, src10, \
src8, src14, src12, src0, src1, src2, src3); \
DUP4_ARG1(__lasx_vext2xv_hu_bu, src0, src1, src2, src3, \
src0, src1, src2, src3); \
DUP4_ARG2(__lasx_xvdp2_w_h, filter0, src0, filter1, src1, \
filter2, src2, filter3, src3, src0, src1, src2, src3); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src2 = __lasx_xvhaddw_d_w(src2, src2); \
src3 = __lasx_xvhaddw_d_w(src3, src3); \
src0 = __lasx_xvpickev_w(src1, src0); \
src1 = __lasx_xvpickev_w(src3, src2); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src1 = __lasx_xvsrai_w(src1, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
src1 = __lasx_xvmin_w(src1, vmax); \
src0 = __lasx_xvpickev_h(src1, src0); \
src0 = __lasx_xvperm_w(src0, shuf); \
__lasx_xvst(src0, dst, 0); \
filterPos += 16; \
filter += 64; \
dst += 16; \
}
#define SCALE_4_8(_sh) \
{ \
src0 = __lasx_xvldrepl_w(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_w(src + filterPos[1], 0); \
src2 = __lasx_xvldrepl_w(src + filterPos[2], 0); \
src3 = __lasx_xvldrepl_w(src + filterPos[3], 0); \
src4 = __lasx_xvldrepl_w(src + filterPos[4], 0); \
src5 = __lasx_xvldrepl_w(src + filterPos[5], 0); \
src6 = __lasx_xvldrepl_w(src + filterPos[6], 0); \
src7 = __lasx_xvldrepl_w(src + filterPos[7], 0); \
filter0 = __lasx_xvld(filter, 0); \
filter1 = __lasx_xvld(filter, 32); \
filterPos += 8; \
filter += 32; \
DUP4_ARG2(__lasx_xvilvl_w, src1, src0, src3, src2, src5, \
src4, src7, src6, src0, src2, src4, src6); \
src0 = __lasx_xvilvl_d(src2, src0); \
src1 = __lasx_xvilvl_d(src6, src4); \
\
src0 = __lasx_vext2xv_hu_bu(src0); \
src1 = __lasx_vext2xv_hu_bu(src1); \
src0 = __lasx_xvdp2_w_h(filter0, src0); \
src1 = __lasx_xvdp2_w_h(filter1, src1); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src1 = __lasx_xvhaddw_d_w(src1, src1); \
src0 = __lasx_xvpickev_w(src1, src0); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
}
#define SCALE_4_4(_sh) \
{ \
src0 = __lasx_xvldrepl_w(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_w(src + filterPos[1], 0); \
src2 = __lasx_xvldrepl_w(src + filterPos[2], 0); \
src3 = __lasx_xvldrepl_w(src + filterPos[3], 0); \
filter0 = __lasx_xvld(filter, 0); \
filterPos += 4; \
filter += 16; \
src0 = __lasx_xvilvl_w(src1, src0); \
src1 = __lasx_xvilvl_w(src3, src2); \
\
src0 = __lasx_xvilvl_d(src1, src0); \
src0 = __lasx_vext2xv_hu_bu(src0); \
src0 = __lasx_xvdp2_w_h(filter0, src0); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
src0 = __lasx_xvpickev_w(src0, src0); \
src0 = __lasx_xvpermi_d(src0, 0xd8); \
}
#define SCALE_4_2(_sh) \
{ \
src0 = __lasx_xvldrepl_w(src + filterPos[0], 0); \
src1 = __lasx_xvldrepl_w(src + filterPos[1], 0); \
filter0 = __lasx_xvld(filter, 0); \
src0 = __lasx_xvilvl_w(src1, src0); \
src0 = __lasx_vext2xv_hu_bu(src0); \
src0 = __lasx_xvdp2_w_h(filter0, src0); \
src0 = __lasx_xvhaddw_d_w(src0, src0); \
src0 = __lasx_xvsrai_w(src0, _sh); \
src0 = __lasx_xvmin_w(src0, vmax); \
dst[0] = __lasx_xvpickve2gr_w(src0, 0); \
dst[1] = __lasx_xvpickve2gr_w(src0, 2); \
filterPos += 2; \
filter += 8; \
dst += 2; \
}
#define SCALE_16 \
{ \
int dex = j << 1; \
src0 = __lasx_xvldrepl_d((srcPos1 + j), 0); \
src1 = __lasx_xvldrepl_d((srcPos2 + j), 0); \
src2 = __lasx_xvldrepl_d((srcPos3 + j), 0); \
src3 = __lasx_xvldrepl_d((srcPos4 + j), 0); \
DUP4_ARG2(__lasx_xvldx, filterStart1, dex, filterStart2, dex, \
filterStart3, dex, filterStart4, dex, filter0, \
filter1, filter2, filter3); \
src0 = __lasx_xvpermi_q(src0, src1, 0x02); \
src1 = __lasx_xvpermi_q(src2, src3, 0x02); \
filter0 = __lasx_xvpermi_q(filter0, filter1, 0x02); \
filter1 = __lasx_xvpermi_q(filter2, filter3, 0x02); \
src0 = __lasx_xvilvl_b(zero, src0); \
src1 = __lasx_xvilvl_b(zero, src1); \
out0 = __lasx_xvdp2_w_h(filter0, src0); \
out1 = __lasx_xvdp2_w_h(filter1, src1); \
src0 = __lasx_xvhaddw_d_w(out0, out0); \
src1 = __lasx_xvhaddw_d_w(out1, out1); \
out0 = __lasx_xvpackev_d(src1, src0); \
out1 = __lasx_xvpackod_d(src1, src0); \
out0 = __lasx_xvadd_w(out0, out1); \
out = __lasx_xvadd_w(out, out0); \
}
void ff_hscale_8_to_15_lasx(SwsContext *c, int16_t *dst, int dstW,
const uint8_t *src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
int max = (1 << 15) - 1;
if (filterSize == 8) {
__m256i src0, src1, src2, src3, src4, src5, src6, src7;
__m256i src8, src9, src10, src11, src12, src13, src14, src15;
__m256i filter0, filter1, filter2, filter3;
__m256i filter4, filter5, filter6, filter7;
__m256i vmax = __lasx_xvreplgr2vr_w(max);
__m256i shuf = {0x0000000400000000, 0x0000000500000001,
0x0000000600000002, 0x0000000700000003};
int len = dstW >> 4;
int res = dstW & 15;
while (len--) {
SCALE_8_16(7);
}
if (res & 8) {
SCALE_8_8(7);
src0 = __lasx_xvpickev_h(src0, src0);
__lasx_xvstelm_d(src0, dst, 0, 0);
__lasx_xvstelm_d(src0, dst, 8, 2);
dst += 8;
}
if (res & 4) {
SCALE_8_4(7);
src0 = __lasx_xvpickev_h(src0, src0);
__lasx_xvstelm_d(src0, dst, 0, 0);
dst += 4;
}
if (res & 2) {
SCALE_8_2(7);
}
if (res & 1) {
int val = 0;
src0 = __lasx_xvldrepl_d(src + filterPos[0], 0);
filter0 = __lasx_xvld(filter, 0);
src0 = __lasx_vext2xv_hu_bu(src0);
src0 = __lasx_xvdp2_w_h(filter0, src0);
src0 = __lasx_xvhaddw_d_w(src0, src0);
src0 = __lasx_xvhaddw_q_d(src0, src0);
val = __lasx_xvpickve2gr_w(src0, 0);
dst[0] = FFMIN(val >> 7, max);
}
} else if (filterSize == 4) {
__m256i src0, src1, src2, src3, src4, src5, src6, src7;
__m256i src8, src9, src10, src11, src12, src13, src14, src15;
__m256i filter0, filter1, filter2, filter3;
__m256i vmax = __lasx_xvreplgr2vr_w(max);
__m256i shuf = {0x0000000400000000, 0x0000000500000001,
0x0000000600000002, 0x0000000700000003};
int len = dstW >> 4;
int res = dstW & 15;
while (len--) {
SCALE_4_16(7);
}
if (res & 8) {
SCALE_4_8(7);
src0 = __lasx_xvpickev_h(src1, src0);
src0 = __lasx_xvperm_w(src0, shuf);
__lasx_xvstelm_d(src0, dst, 0, 0);
__lasx_xvstelm_d(src0, dst, 8, 1);
dst += 8;
}
if (res & 4) {
SCALE_4_4(7);
src0 = __lasx_xvpickev_h(src0, src0);
__lasx_xvstelm_d(src0, dst, 0, 0);
dst += 4;
}
if (res & 2) {
SCALE_4_2(7);
}
if (res & 1) {
int val = 0;
const uint8_t *srcPos = src + filterPos[0];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[0] = FFMIN(val >> 7, max);
}
} else if (filterSize > 8) {
int filterlen = filterSize - 7;
int len = dstW >> 2;
int res = dstW & 3;
__m256i zero = __lasx_xvldi(0);
while (len--) {
__m256i src0, src1, src2, src3;
__m256i filter0, filter1, filter2, filter3, out0, out1;
__m256i out = zero;
const uint8_t *srcPos1 = src + filterPos[0];
const uint8_t *srcPos2 = src + filterPos[1];
const uint8_t *srcPos3 = src + filterPos[2];
const uint8_t *srcPos4 = src + filterPos[3];
const int16_t *filterStart1 = filter;
const int16_t *filterStart2 = filterStart1 + filterSize;
const int16_t *filterStart3 = filterStart2 + filterSize;
const int16_t *filterStart4 = filterStart3 + filterSize;
int j, val1 = 0, val2 = 0, val3 = 0, val4 = 0;
for (j = 0; j < filterlen; j += 8) {
SCALE_16
}
val1 = __lasx_xvpickve2gr_w(out, 0);
val2 = __lasx_xvpickve2gr_w(out, 4);
val3 = __lasx_xvpickve2gr_w(out, 2);
val4 = __lasx_xvpickve2gr_w(out, 6);
for (; j < filterSize; j++) {
val1 += ((int)srcPos1[j]) * filterStart1[j];
val2 += ((int)srcPos2[j]) * filterStart2[j];
val3 += ((int)srcPos3[j]) * filterStart3[j];
val4 += ((int)srcPos4[j]) * filterStart4[j];
}
dst[0] = FFMIN(val1 >> 7, max);
dst[1] = FFMIN(val2 >> 7, max);
dst[2] = FFMIN(val3 >> 7, max);
dst[3] = FFMIN(val4 >> 7, max);
dst += 4;
filterPos += 4;
filter = filterStart4 + filterSize;
}
for(i = 0; i < res; i++) {
int j, val = 0;
const uint8_t *srcPos = src + filterPos[i];
__m256i src1, filter0, out0;
for (j = 0; j < filterlen; j += 8) {
src1 = __lasx_xvldrepl_d((srcPos + j), 0);
filter0 = __lasx_xvld(filter + j, 0);
src1 = __lasx_xvilvl_b(zero, src1);
out0 = __lasx_xvdp2_w_h(filter0, src1);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val += __lasx_xvpickve2gr_w(out0, 0);
}
for (; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> 7, max);
filter += filterSize;
}
} else {
for (i = 0; i < dstW; i++) {
int val = 0;
const uint8_t *srcPos = src + filterPos[i];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> 7, max);
filter += filterSize;
}
}
}
void ff_hscale_8_to_19_lasx(SwsContext *c, int16_t *_dst, int dstW,
const uint8_t *src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
int i;
int max = (1 << 19) - 1;
int32_t *dst = (int32_t *) _dst;
if (filterSize == 8) {
__m256i src0, src1, src2, src3, src4, src5, src6, src7;
__m256i filter0, filter1, filter2, filter3;
__m256i vmax = __lasx_xvreplgr2vr_w(max);
__m256i shuf = {0x0000000400000000, 0x0000000500000001,
0x0000000600000002, 0x0000000700000003};
int len = dstW >> 3;
int res = dstW & 7;
while (len--) {
SCALE_8_8(3);
__lasx_xvst(src0, dst, 0);
dst += 8;
}
if (res & 4) {
SCALE_8_4(3);
__lasx_xvstelm_d(src0, dst, 0, 0);
__lasx_xvstelm_d(src0, dst, 8, 1);
dst += 4;
}
if (res & 2) {
SCALE_8_2(3);
}
if (res & 1) {
int val = 0;
__m256i src0, filter0, out0;
src0 = __lasx_xvldrepl_d(src + filterPos[0], 0);
filter0 = __lasx_xvld(filter, 0);
src0 = __lasx_vext2xv_hu_bu(src0);
out0 = __lasx_xvdp2_w_h(filter0, src0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val = __lasx_xvpickve2gr_w(out0, 0);
dst[0] = FFMIN(val >> 3, max);
}
} else if (filterSize == 4) {
__m256i src0, src1, src2, src3, src4, src5, src6, src7;
__m256i filter0, filter1;
__m256i vmax = __lasx_xvreplgr2vr_w(max);
__m256i shuf = {0x0000000100000000, 0x0000000500000004,
0x0000000300000002, 0x0000000700000006};
int len = dstW >> 3;
int res = dstW & 7;
while (len--) {
SCALE_4_8(3);
src0 = __lasx_xvperm_w(src0, shuf);
__lasx_xvst(src0, dst, 0);
dst += 8;
}
if (res & 4) {
SCALE_4_4(3);
__lasx_xvstelm_d(src0, dst, 0, 0);
__lasx_xvstelm_d(src0, dst, 8, 1);
dst += 4;
}
if (res & 2) {
SCALE_4_2(3);
}
if (res & 1) {
int val = 0;
const uint8_t *srcPos = src + filterPos[0];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[0] = FFMIN(val >> 3, max);
}
} else if (filterSize > 8) {
int len = dstW >> 2;
int res = dstW & 3;
int filterlen = filterSize - 7;
__m256i zero = __lasx_xvldi(0);
while (len--) {
__m256i src0, src1, src2, src3;
__m256i filter0, filter1, filter2, filter3, out0, out1;
__m256i out = zero;
const uint8_t *srcPos1 = src + filterPos[0];
const uint8_t *srcPos2 = src + filterPos[1];
const uint8_t *srcPos3 = src + filterPos[2];
const uint8_t *srcPos4 = src + filterPos[3];
const int16_t *filterStart1 = filter;
const int16_t *filterStart2 = filterStart1 + filterSize;
const int16_t *filterStart3 = filterStart2 + filterSize;
const int16_t *filterStart4 = filterStart3 + filterSize;
int j, val1 = 0, val2 = 0, val3 = 0, val4 = 0;
for (j = 0; j < filterlen; j += 8) {
SCALE_16
}
val1 = __lasx_xvpickve2gr_w(out, 0);
val2 = __lasx_xvpickve2gr_w(out, 4);
val3 = __lasx_xvpickve2gr_w(out, 2);
val4 = __lasx_xvpickve2gr_w(out, 6);
for (; j < filterSize; j++) {
val1 += ((int)srcPos1[j]) * filterStart1[j];
val2 += ((int)srcPos2[j]) * filterStart2[j];
val3 += ((int)srcPos3[j]) * filterStart3[j];
val4 += ((int)srcPos4[j]) * filterStart4[j];
}
dst[0] = FFMIN(val1 >> 3, max);
dst[1] = FFMIN(val2 >> 3, max);
dst[2] = FFMIN(val3 >> 3, max);
dst[3] = FFMIN(val4 >> 3, max);
dst += 4;
filterPos += 4;
filter = filterStart4 + filterSize;
}
for (i = 0; i < res; i++) {
int j, val = 0;
const uint8_t *srcPos = src + filterPos[i];
__m256i src1, filter0, out0;
for (j = 0; j < filterlen; j += 8) {
src1 = __lasx_xvldrepl_d((srcPos + j), 0);
filter0 = __lasx_xvld(filter + j, 0);
src1 = __lasx_xvilvl_b(zero, src1);
out0 = __lasx_xvdp2_w_h(filter0, src1);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val += __lasx_xvpickve2gr_w(out0, 0);
}
for (; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> 3, max);
filter += filterSize;
}
} else {
for (i = 0; i < dstW; i++) {
int val = 0;
const uint8_t *srcPos = src + filterPos[i];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> 3, max);
filter += filterSize;
}
}
}
#undef SCALE_16
#define SCALE_8 \
{ \
__m256i src0, src1, src2, src3, filter0, filter1, out0, out1; \
DUP4_ARG2(__lasx_xvld, src + filterPos[0], 0, src + filterPos[1], 0, \
src + filterPos[2], 0, src + filterPos[3], 0, src0, src1, src2,\
src3); \
filter0 = __lasx_xvld(filter, 0); \
filter1 = __lasx_xvld(filter, 32); \
src0 = __lasx_xvpermi_q(src0, src1, 0x02); \
src2 = __lasx_xvpermi_q(src2, src3, 0x02); \
out0 = __lasx_xvdp2_w_hu_h(src0, filter0); \
out1 = __lasx_xvdp2_w_hu_h(src2, filter1); \
src0 = __lasx_xvhaddw_d_w(out0, out0); \
src1 = __lasx_xvhaddw_d_w(out1, out1); \
out0 = __lasx_xvpackev_d(src1, src0); \
out1 = __lasx_xvpackod_d(src1, src0); \
out0 = __lasx_xvadd_w(out0, out1); \
out0 = __lasx_xvsra_w(out0, shift); \
out0 = __lasx_xvmin_w(out0, v_max); \
dst[0] = __lasx_xvpickve2gr_w(out0, 0); \
dst[1] = __lasx_xvpickve2gr_w(out0, 4); \
dst[2] = __lasx_xvpickve2gr_w(out0, 2); \
dst[3] = __lasx_xvpickve2gr_w(out0, 6); \
filterPos += 4; \
filter += 32; \
dst += 4; \
}
#define SCALE_16 \
{ \
int dex = j << 1; \
DUP4_ARG2(__lasx_xvldx, srcPos1, dex, srcPos2, dex, srcPos3, dex, \
srcPos4, dex, src0, src1, src2, src3); \
DUP4_ARG2(__lasx_xvldx, filterStart1, dex, filterStart2, dex, \
filterStart3, dex, filterStart4, dex, filter0, \
filter1, filter2, filter3); \
src0 = __lasx_xvpermi_q(src0, src1, 0x02); \
src1 = __lasx_xvpermi_q(src2, src3, 0x02); \
filter0 = __lasx_xvpermi_q(filter0, filter1, 0x02); \
filter1 = __lasx_xvpermi_q(filter2, filter3, 0x02); \
out0 = __lasx_xvdp2_w_hu_h(src0, filter0); \
out1 = __lasx_xvdp2_w_hu_h(src1, filter1); \
src0 = __lasx_xvhaddw_d_w(out0, out0); \
src1 = __lasx_xvhaddw_d_w(out1, out1); \
out0 = __lasx_xvpackev_d(src1, src0); \
out1 = __lasx_xvpackod_d(src1, src0); \
out0 = __lasx_xvadd_w(out0, out1); \
out = __lasx_xvadd_w(out, out0); \
}
void ff_hscale_16_to_15_lasx(SwsContext *c, int16_t *dst, int dstW,
const uint8_t *_src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
int i;
const uint16_t *src = (const uint16_t *) _src;
int sh = desc->comp[0].depth - 1;
int max = (1 << 15) - 1;
int len = dstW >> 2;
int res = dstW & 3;
__m256i shift;
__m256i zero = __lasx_xvldi(0);
if (sh < 15) {
sh = isAnyRGB(c->srcFormat) || c->srcFormat==AV_PIX_FMT_PAL8 ? 13 :
(desc->comp[0].depth - 1);
} else if (desc->flags && AV_PIX_FMT_FLAG_FLOAT) {
sh = 15;
}
shift = __lasx_xvreplgr2vr_w(sh);
if (filterSize == 8) {
__m256i v_max = __lasx_xvreplgr2vr_w(max);
for (i = 0; i < len; i++) {
SCALE_8
}
for (i = 0; i < res; i++) {
int val = 0;
__m256i src0, filter0, out0;
src0 = __lasx_xvld(src + filterPos[i], 0);
filter0 = __lasx_xvld(filter, 0);
out0 = __lasx_xvdp2_w_hu_h(src0, filter0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val = __lasx_xvpickve2gr_w(out0, 0);
dst[i] = FFMIN(val >> sh, max);
filter += 8;
}
} else if (filterSize == 4) {
__m256i v_max = __lasx_xvreplgr2vr_w(max);
for (i = 0; i < len; i++) {
__m256i src1, src2, src3, src4, src0, filter0, out0;
src1 = __lasx_xvldrepl_d(src + filterPos[0], 0);
src2 = __lasx_xvldrepl_d(src + filterPos[1], 0);
src3 = __lasx_xvldrepl_d(src + filterPos[2], 0);
src4 = __lasx_xvldrepl_d(src + filterPos[3], 0);
filter0 = __lasx_xvld(filter, 0);
src1 = __lasx_xvextrins_d(src1, src2, 0x10);
src3 = __lasx_xvextrins_d(src3, src4, 0x10);
src0 = __lasx_xvpermi_q(src1, src3, 0x02);
out0 = __lasx_xvdp2_w_hu_h(src0, filter0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvsra_w(out0, shift);
out0 = __lasx_xvmin_w(out0, v_max);
dst[0] = __lasx_xvpickve2gr_w(out0, 0);
dst[1] = __lasx_xvpickve2gr_w(out0, 2);
dst[2] = __lasx_xvpickve2gr_w(out0, 4);
dst[3] = __lasx_xvpickve2gr_w(out0, 6);
dst += 4;
filterPos += 4;
filter += 16;
}
for (i = 0; i < res; i++) {
int val = 0;
const uint16_t *srcPos = src + filterPos[i];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> sh, max);
filter += 4;
}
} else if (filterSize > 8) {
int filterlen = filterSize - 7;
for (i = 0; i < len; i++) {
__m256i src0, src1, src2, src3;
__m256i filter0, filter1, filter2, filter3, out0, out1;
__m256i out = zero;
const uint16_t *srcPos1 = src + filterPos[0];
const uint16_t *srcPos2 = src + filterPos[1];
const uint16_t *srcPos3 = src + filterPos[2];
const uint16_t *srcPos4 = src + filterPos[3];
const int16_t *filterStart1 = filter;
const int16_t *filterStart2 = filterStart1 + filterSize;
const int16_t *filterStart3 = filterStart2 + filterSize;
const int16_t *filterStart4 = filterStart3 + filterSize;
int j, val1 = 0, val2 = 0, val3 = 0, val4 = 0;
for (j = 0; j < filterlen; j += 8) {
SCALE_16
}
val1 = __lasx_xvpickve2gr_w(out, 0);
val2 = __lasx_xvpickve2gr_w(out, 4);
val3 = __lasx_xvpickve2gr_w(out, 2);
val4 = __lasx_xvpickve2gr_w(out, 6);
for (; j < filterSize; j++) {
val1 += ((int)srcPos1[j]) * filterStart1[j];
val2 += ((int)srcPos2[j]) * filterStart2[j];
val3 += ((int)srcPos3[j]) * filterStart3[j];
val4 += ((int)srcPos4[j]) * filterStart4[j];
}
dst[0] = FFMIN(val1 >> sh, max);
dst[1] = FFMIN(val2 >> sh, max);
dst[2] = FFMIN(val3 >> sh, max);
dst[3] = FFMIN(val4 >> sh, max);
dst += 4;
filterPos += 4;
filter = filterStart4 + filterSize;
}
for (i = 0; i < res; i++) {
int j, val = 0;
const uint16_t *srcPos = src + filterPos[i];
__m256i src0, filter0, out0;
for (j = 0; j < filterlen; j += 8) {
int dex = j << 1;
src0 = __lasx_xvldx(srcPos, dex);
filter0 = __lasx_xvldx(filter, dex);
out0 = __lasx_xvdp2_w_hu_h(src0, filter0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val += __lasx_xvpickve2gr_w(out0, 0);
}
for (; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> sh, max);
filter += filterSize;
}
} else {
for (i = 0; i < dstW; i++) {
int val = 0;
const uint16_t *srcPos = src + filterPos[i];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> sh, max);
filter += filterSize;
}
}
}
void ff_hscale_16_to_19_lasx(SwsContext *c, int16_t *_dst, int dstW,
const uint8_t *_src, const int16_t *filter,
const int32_t *filterPos, int filterSize)
{
const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
int i;
int32_t *dst = (int32_t *) _dst;
const uint16_t *src = (const uint16_t *) _src;
int sh = desc->comp[0].depth - 5;
int max = (1 << 19) - 1;
int len = dstW >> 2;
int res = dstW & 3;
__m256i shift;
__m256i zero = __lasx_xvldi(0);
if ((isAnyRGB(c->srcFormat) || c->srcFormat == AV_PIX_FMT_PAL8)
&& desc->comp[0].depth<16) {
sh = 9;
} else if (desc->flags & AV_PIX_FMT_FLAG_FLOAT) {
sh = 11;
}
shift = __lasx_xvreplgr2vr_w(sh);
if (filterSize == 8) {
__m256i v_max = __lasx_xvreplgr2vr_w(max);
for (i = 0; i < len; i++) {
SCALE_8
}
for (i = 0; i < res; i++) {
int val = 0;
__m256i src0, filter0, out0;
src0 = __lasx_xvld(src + filterPos[i], 0);
filter0 = __lasx_xvld(filter, 0);
out0 = __lasx_xvdp2_w_hu_h(src0, filter0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val = __lasx_xvpickve2gr_w(out0, 0);
dst[i] = FFMIN(val >> sh, max);
filter += 8;
}
} else if (filterSize == 4) {
__m256i v_max = __lasx_xvreplgr2vr_w(max);
for (i = 0; i < len; i++) {
__m256i src1, src2, src3, src4, src0, filter0, out0;
src1 = __lasx_xvldrepl_d(src + filterPos[0], 0);
src2 = __lasx_xvldrepl_d(src + filterPos[1], 0);
src3 = __lasx_xvldrepl_d(src + filterPos[2], 0);
src4 = __lasx_xvldrepl_d(src + filterPos[3], 0);
filter0 = __lasx_xvld(filter, 0);
src1 = __lasx_xvextrins_d(src1, src2, 0x10);
src3 = __lasx_xvextrins_d(src3, src4, 0x10);
src0 = __lasx_xvpermi_q(src1, src3, 0x02);
out0 = __lasx_xvdp2_w_hu_h(src0, filter0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvsra_w(out0, shift);
out0 = __lasx_xvmin_w(out0, v_max);
dst[0] = __lasx_xvpickve2gr_w(out0, 0);
dst[1] = __lasx_xvpickve2gr_w(out0, 2);
dst[2] = __lasx_xvpickve2gr_w(out0, 4);
dst[3] = __lasx_xvpickve2gr_w(out0, 6);
dst += 4;
filterPos += 4;
filter += 16;
}
for (i = 0; i < res; i++) {
int val = 0;
const uint16_t *srcPos = src + filterPos[i];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> sh, max);
filter += 4;
}
} else if (filterSize > 8) {
int filterlen = filterSize - 7;
for (i = 0; i < len; i ++) {
__m256i src0, src1, src2, src3;
__m256i filter0, filter1, filter2, filter3, out0, out1;
__m256i out = zero;
const uint16_t *srcPos1 = src + filterPos[0];
const uint16_t *srcPos2 = src + filterPos[1];
const uint16_t *srcPos3 = src + filterPos[2];
const uint16_t *srcPos4 = src + filterPos[3];
const int16_t *filterStart1 = filter;
const int16_t *filterStart2 = filterStart1 + filterSize;
const int16_t *filterStart3 = filterStart2 + filterSize;
const int16_t *filterStart4 = filterStart3 + filterSize;
int j, val1 = 0, val2 = 0, val3 = 0, val4 = 0;
for (j = 0; j < filterlen; j += 8) {
SCALE_16
}
val1 = __lasx_xvpickve2gr_w(out, 0);
val2 = __lasx_xvpickve2gr_w(out, 4);
val3 = __lasx_xvpickve2gr_w(out, 2);
val4 = __lasx_xvpickve2gr_w(out, 6);
for (; j < filterSize; j++) {
val1 += ((int)srcPos1[j]) * filterStart1[j];
val2 += ((int)srcPos2[j]) * filterStart2[j];
val3 += ((int)srcPos3[j]) * filterStart3[j];
val4 += ((int)srcPos4[j]) * filterStart4[j];
}
dst[0] = FFMIN(val1 >> sh, max);
dst[1] = FFMIN(val2 >> sh, max);
dst[2] = FFMIN(val3 >> sh, max);
dst[3] = FFMIN(val4 >> sh, max);
dst += 4;
filterPos += 4;
filter = filterStart4 + filterSize;
}
for (i = 0; i < res; i++) {
int j, val = 0;
const uint16_t *srcPos = src + filterPos[i];
__m256i src0, filter0, out0;
for (j = 0; j < filterlen; j += 8) {
int dex = j << 1;
src0 = __lasx_xvldx(srcPos, dex);
filter0 = __lasx_xvldx(filter, dex);
out0 = __lasx_xvdp2_w_hu_h(src0, filter0);
out0 = __lasx_xvhaddw_d_w(out0, out0);
out0 = __lasx_xvhaddw_q_d(out0, out0);
val += __lasx_xvpickve2gr_w(out0, 0);
}
for (; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> sh, max);
filter += filterSize;
}
} else {
for (i = 0; i < dstW; i++) {
int val = 0;
const uint16_t *srcPos = src + filterPos[i];
for (int j = 0; j < filterSize; j++) {
val += ((int)srcPos[j]) * filter[j];
}
dst[i] = FFMIN(val >> sh, max);
filter += filterSize;
}
}
}
#undef SCALE_8
#undef SCALE_16