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https://github.com/FFmpeg/FFmpeg.git
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swscale/ppc: VSX-optimize yuv2422_1
./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 \
-s 1200x1440 -f null -vframes 100 -pix_fmt $i -nostats \
-cpuflags 0 -v error -
15.3x speedup:
yuyv422
14513 UNITS in yuv2packed1, 32768 runs, 0 skips
949 UNITS in yuv2packed1, 32767 runs, 1 skips
yvyu422
14516 UNITS in yuv2packed1, 32767 runs, 1 skips
943 UNITS in yuv2packed1, 32767 runs, 1 skips
uyvy422
14530 UNITS in yuv2packed1, 32767 runs, 1 skips
941 UNITS in yuv2packed1, 32766 runs, 2 skips
This commit is contained in:
Lauri Kasanen
parent
4e8cbbf70e
commit
a6a31ca3d9
@ -664,6 +664,143 @@ YUV2RGBWRAPPER(yuv2, rgb_full, xbgr32_full, AV_PIX_FMT_ABGR, 0)
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YUV2RGBWRAPPER(yuv2, rgb_full, rgb24_full, AV_PIX_FMT_RGB24, 0)
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YUV2RGBWRAPPER(yuv2, rgb_full, bgr24_full, AV_PIX_FMT_BGR24, 0)
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static av_always_inline void
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write422(const vector int16_t vy1, const vector int16_t vy2,
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const vector int16_t vu, const vector int16_t vv,
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uint8_t *dest, const enum AVPixelFormat target)
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{
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vector uint8_t vd1, vd2, tmp;
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const vector uint8_t yuyv1 = (vector uint8_t) {
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0x0, 0x10, 0x1, 0x18,
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0x2, 0x11, 0x3, 0x19,
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0x4, 0x12, 0x5, 0x1a,
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0x6, 0x13, 0x7, 0x1b };
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const vector uint8_t yuyv2 = (vector uint8_t) {
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0x8, 0x14, 0x9, 0x1c,
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0xa, 0x15, 0xb, 0x1d,
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0xc, 0x16, 0xd, 0x1e,
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0xe, 0x17, 0xf, 0x1f };
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const vector uint8_t yvyu1 = (vector uint8_t) {
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0x0, 0x18, 0x1, 0x10,
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0x2, 0x19, 0x3, 0x11,
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0x4, 0x1a, 0x5, 0x12,
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0x6, 0x1b, 0x7, 0x13 };
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const vector uint8_t yvyu2 = (vector uint8_t) {
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0x8, 0x1c, 0x9, 0x14,
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0xa, 0x1d, 0xb, 0x15,
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0xc, 0x1e, 0xd, 0x16,
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0xe, 0x1f, 0xf, 0x17 };
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const vector uint8_t uyvy1 = (vector uint8_t) {
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0x10, 0x0, 0x18, 0x1,
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0x11, 0x2, 0x19, 0x3,
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0x12, 0x4, 0x1a, 0x5,
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0x13, 0x6, 0x1b, 0x7 };
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const vector uint8_t uyvy2 = (vector uint8_t) {
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0x14, 0x8, 0x1c, 0x9,
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0x15, 0xa, 0x1d, 0xb,
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0x16, 0xc, 0x1e, 0xd,
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0x17, 0xe, 0x1f, 0xf };
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vd1 = vec_packsu(vy1, vy2);
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vd2 = vec_packsu(vu, vv);
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switch (target) {
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case AV_PIX_FMT_YUYV422:
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tmp = vec_perm(vd1, vd2, yuyv1);
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vec_st(tmp, 0, dest);
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tmp = vec_perm(vd1, vd2, yuyv2);
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vec_st(tmp, 16, dest);
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break;
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case AV_PIX_FMT_YVYU422:
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tmp = vec_perm(vd1, vd2, yvyu1);
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vec_st(tmp, 0, dest);
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tmp = vec_perm(vd1, vd2, yvyu2);
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vec_st(tmp, 16, dest);
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break;
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case AV_PIX_FMT_UYVY422:
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tmp = vec_perm(vd1, vd2, uyvy1);
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vec_st(tmp, 0, dest);
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tmp = vec_perm(vd1, vd2, uyvy2);
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vec_st(tmp, 16, dest);
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break;
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}
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}
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static av_always_inline void
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yuv2422_1_vsx_template(SwsContext *c, const int16_t *buf0,
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const int16_t *ubuf[2], const int16_t *vbuf[2],
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const int16_t *abuf0, uint8_t *dest, int dstW,
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int uvalpha, int y, enum AVPixelFormat target)
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{
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const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
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vector int16_t vy1, vy2, vu, vv, tmp;
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const vector int16_t add64 = vec_splats((int16_t) 64);
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const vector int16_t add128 = vec_splats((int16_t) 128);
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const vector uint16_t shift7 = vec_splat_u16(7);
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const vector uint16_t shift8 = vec_splat_u16(8);
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int i;
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if (uvalpha < 2048) {
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for (i = 0; i < ((dstW + 1) >> 1); i += 8) {
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vy1 = vec_ld(0, &buf0[i * 2]);
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vy2 = vec_ld(0, &buf0[(i + 4) * 2]);
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vu = vec_ld(0, &ubuf0[i]);
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vv = vec_ld(0, &vbuf0[i]);
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vy1 = vec_add(vy1, add64);
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vy2 = vec_add(vy2, add64);
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vu = vec_add(vu, add64);
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vv = vec_add(vv, add64);
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vy1 = vec_sra(vy1, shift7);
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vy2 = vec_sra(vy2, shift7);
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vu = vec_sra(vu, shift7);
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vv = vec_sra(vv, shift7);
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write422(vy1, vy2, vu, vv, &dest[i * 4], target);
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}
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} else {
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const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
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for (i = 0; i < ((dstW + 1) >> 1); i += 8) {
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vy1 = vec_ld(0, &buf0[i * 2]);
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vy2 = vec_ld(0, &buf0[(i + 4) * 2]);
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vu = vec_ld(0, &ubuf0[i]);
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tmp = vec_ld(0, &ubuf1[i]);
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vu = vec_adds(vu, tmp);
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vv = vec_ld(0, &vbuf0[i]);
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tmp = vec_ld(0, &vbuf1[i]);
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vv = vec_adds(vv, tmp);
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vy1 = vec_add(vy1, add64);
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vy2 = vec_add(vy2, add64);
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vu = vec_adds(vu, add128);
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vv = vec_adds(vv, add128);
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vy1 = vec_sra(vy1, shift7);
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vy2 = vec_sra(vy2, shift7);
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vu = vec_sra(vu, shift8);
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vv = vec_sra(vv, shift8);
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write422(vy1, vy2, vu, vv, &dest[i * 4], target);
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}
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}
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}
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#define YUV2PACKEDWRAPPER(name, base, ext, fmt) \
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static void name ## ext ## _1_vsx(SwsContext *c, const int16_t *buf0, \
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const int16_t *ubuf[2], const int16_t *vbuf[2], \
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const int16_t *abuf0, uint8_t *dest, int dstW, \
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int uvalpha, int y) \
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{ \
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name ## base ## _1_vsx_template(c, buf0, ubuf, vbuf, \
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abuf0, dest, dstW, uvalpha, \
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y, fmt); \
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}
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YUV2PACKEDWRAPPER(yuv2, 422, yuyv422, AV_PIX_FMT_YUYV422)
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YUV2PACKEDWRAPPER(yuv2, 422, yvyu422, AV_PIX_FMT_YVYU422)
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YUV2PACKEDWRAPPER(yuv2, 422, uyvy422, AV_PIX_FMT_UYVY422)
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#endif /* !HAVE_BIGENDIAN */
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#endif /* HAVE_VSX */
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@ -768,6 +905,18 @@ av_cold void ff_sws_init_swscale_vsx(SwsContext *c)
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}
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break;
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}
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} else { /* !SWS_FULL_CHR_H_INT */
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switch (dstFormat) {
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case AV_PIX_FMT_YUYV422:
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c->yuv2packed1 = yuv2yuyv422_1_vsx;
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break;
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case AV_PIX_FMT_YVYU422:
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c->yuv2packed1 = yuv2yvyu422_1_vsx;
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break;
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case AV_PIX_FMT_UYVY422:
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c->yuv2packed1 = yuv2uyvy422_1_vsx;
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break;
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}
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}
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#endif /* !HAVE_BIGENDIAN */
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