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swscale/ppc: VSX-optimize yuv2422_X 

./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 \
          -s 1200x720 -f null -vframes 100 -pix_fmt $i -nostats \
          -cpuflags 0 -v error -

7.2x speedup:

yuyv422
 126354 UNITS in yuv2packedX,   16384 runs,      0 skips
  16383 UNITS in yuv2packedX,   16382 runs,      2 skips
yvyu422
 117669 UNITS in yuv2packedX,   16384 runs,      0 skips
  16271 UNITS in yuv2packedX,   16379 runs,      5 skips
uyvy422
 117310 UNITS in yuv2packedX,   16384 runs,      0 skips
  16226 UNITS in yuv2packedX,   16382 runs,      2 skips
This commit is contained in:
Lauri Kasanen 2019-03-24 14:55:45 +02:00
parent 9a2db4dc61
commit 7adce3e64c
1 changed files with 104 additions and 0 deletions
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104
libswscale/ppc/swscale_vsx.c
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@ -726,6 +726,93 @@ write422(const vector int16_t vy1, const vector int16_t vy2,
}
}
static av_always_inline void
yuv2422_X_vsx_template(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest, int dstW,
int y, enum AVPixelFormat target)
{
int i, j;
vector int16_t vy1, vy2, vu, vv;
vector int32_t vy32[4], vu32[2], vv32[2], tmp, tmp2, tmp3, tmp4;
vector int16_t vlumFilter[MAX_FILTER_SIZE], vchrFilter[MAX_FILTER_SIZE];
const vector int32_t start = vec_splats(1 << 18);
const vector uint32_t shift19 = vec_splats(19U);
for (i = 0; i < lumFilterSize; i++)
vlumFilter[i] = vec_splats(lumFilter[i]);
for (i = 0; i < chrFilterSize; i++)
vchrFilter[i] = vec_splats(chrFilter[i]);
for (i = 0; i < ((dstW + 1) >> 1); i += 8) {
vy32[0] =
vy32[1] =
vy32[2] =
vy32[3] =
vu32[0] =
vu32[1] =
vv32[0] =
vv32[1] = start;
for (j = 0; j < lumFilterSize; j++) {
vv = vec_ld(0, &lumSrc[j][i * 2]);
tmp = vec_mule(vv, vlumFilter[j]);
tmp2 = vec_mulo(vv, vlumFilter[j]);
tmp3 = vec_mergeh(tmp, tmp2);
tmp4 = vec_mergel(tmp, tmp2);
vy32[0] = vec_adds(vy32[0], tmp3);
vy32[1] = vec_adds(vy32[1], tmp4);
vv = vec_ld(0, &lumSrc[j][(i + 4) * 2]);
tmp = vec_mule(vv, vlumFilter[j]);
tmp2 = vec_mulo(vv, vlumFilter[j]);
tmp3 = vec_mergeh(tmp, tmp2);
tmp4 = vec_mergel(tmp, tmp2);
vy32[2] = vec_adds(vy32[2], tmp3);
vy32[3] = vec_adds(vy32[3], tmp4);
}
for (j = 0; j < chrFilterSize; j++) {
vv = vec_ld(0, &chrUSrc[j][i]);
tmp = vec_mule(vv, vchrFilter[j]);
tmp2 = vec_mulo(vv, vchrFilter[j]);
tmp3 = vec_mergeh(tmp, tmp2);
tmp4 = vec_mergel(tmp, tmp2);
vu32[0] = vec_adds(vu32[0], tmp3);
vu32[1] = vec_adds(vu32[1], tmp4);
vv = vec_ld(0, &chrVSrc[j][i]);
tmp = vec_mule(vv, vchrFilter[j]);
tmp2 = vec_mulo(vv, vchrFilter[j]);
tmp3 = vec_mergeh(tmp, tmp2);
tmp4 = vec_mergel(tmp, tmp2);
vv32[0] = vec_adds(vv32[0], tmp3);
vv32[1] = vec_adds(vv32[1], tmp4);
}
for (j = 0; j < 4; j++) {
vy32[j] = vec_sra(vy32[j], shift19);
}
for (j = 0; j < 2; j++) {
vu32[j] = vec_sra(vu32[j], shift19);
vv32[j] = vec_sra(vv32[j], shift19);
}
vy1 = vec_packs(vy32[0], vy32[1]);
vy2 = vec_packs(vy32[2], vy32[3]);
vu = vec_packs(vu32[0], vu32[1]);
vv = vec_packs(vv32[0], vv32[1]);
write422(vy1, vy2, vu, vv, &dest[i * 4], target);
}
}
#define SETUP(x, buf0, buf1, alpha) { \
x = vec_ld(0, buf0); \
tmp = vec_mule(x, alpha); \
@ -841,7 +928,21 @@ yuv2422_1_vsx_template(SwsContext *c, const int16_t *buf0,
}
}
#define YUV2PACKEDWRAPPERX(name, base, ext, fmt) \
static void name ## ext ## _X_vsx(SwsContext *c, const int16_t *lumFilter, \
const int16_t **lumSrc, int lumFilterSize, \
const int16_t *chrFilter, const int16_t **chrUSrc, \
const int16_t **chrVSrc, int chrFilterSize, \
const int16_t **alpSrc, uint8_t *dest, int dstW, \
int y) \
{ \
name ## base ## _X_vsx_template(c, lumFilter, lumSrc, lumFilterSize, \
chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
alpSrc, dest, dstW, y, fmt); \
}
#define YUV2PACKEDWRAPPER2(name, base, ext, fmt) \
YUV2PACKEDWRAPPERX(name, base, ext, fmt) \
static void name ## ext ## _2_vsx(SwsContext *c, const int16_t *buf[2], \
const int16_t *ubuf[2], const int16_t *vbuf[2], \
const int16_t *abuf[2], uint8_t *dest, int dstW, \
@ -976,14 +1077,17 @@ av_cold void ff_sws_init_swscale_vsx(SwsContext *c)
case AV_PIX_FMT_YUYV422:
c->yuv2packed1 = yuv2yuyv422_1_vsx;
c->yuv2packed2 = yuv2yuyv422_2_vsx;
c->yuv2packedX = yuv2yuyv422_X_vsx;
break;
case AV_PIX_FMT_YVYU422:
c->yuv2packed1 = yuv2yvyu422_1_vsx;
c->yuv2packed2 = yuv2yvyu422_2_vsx;
c->yuv2packedX = yuv2yvyu422_X_vsx;
break;
case AV_PIX_FMT_UYVY422:
c->yuv2packed1 = yuv2uyvy422_1_vsx;
c->yuv2packed2 = yuv2uyvy422_2_vsx;
c->yuv2packedX = yuv2uyvy422_X_vsx;
break;
}
}