swscale/ppc: VSX-optimize non-full-chroma yuv2rgb_1
./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags fast_bilinear \
-s 1200x1440 -f null -vframes 100 -pix_fmt $i -nostats \
-cpuflags 0 -v error -
32-bit mul, power8 only.
1.8-2.3x speedup:
rgb24
18192 UNITS in yuv2packed1, 32767 runs, 1 skips
9983 UNITS in yuv2packed1, 32760 runs, 8 skips
bgr24
18665 UNITS in yuv2packed1, 32766 runs, 2 skips
9925 UNITS in yuv2packed1, 32763 runs, 5 skips
rgba
20239 UNITS in yuv2packed1, 32767 runs, 1 skips
8794 UNITS in yuv2packed1, 32759 runs, 9 skips
bgra
20354 UNITS in yuv2packed1, 32768 runs, 0 skips
8770 UNITS in yuv2packed1, 32761 runs, 7 skips
argb
20185 UNITS in yuv2packed1, 32768 runs, 0 skips
8761 UNITS in yuv2packed1, 32761 runs, 7 skips
bgra
20360 UNITS in yuv2packed1, 32766 runs, 2 skips
8759 UNITS in yuv2packed1, 32764 runs, 4 skips
This is a low speedup, but the x86 mmx version also gets only ~2x. The mmx version
is also heavily inaccurate, while the vsx version has high accuracy.
This commit is contained in:
Lauri Kasanen
parent
7c1875143d
commit
50e672bc54
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@ -422,6 +422,104 @@ yuv2NBPSX(16, BE, 1, 16, int32_t)
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yuv2NBPSX(16, LE, 0, 16, int32_t)
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#endif
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#define WRITERGB \
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R_l = vec_max(R_l, zero32); \
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R_r = vec_max(R_r, zero32); \
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G_l = vec_max(G_l, zero32); \
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G_r = vec_max(G_r, zero32); \
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B_l = vec_max(B_l, zero32); \
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B_r = vec_max(B_r, zero32); \
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\
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R_l = vec_min(R_l, rgbclip); \
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R_r = vec_min(R_r, rgbclip); \
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G_l = vec_min(G_l, rgbclip); \
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G_r = vec_min(G_r, rgbclip); \
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B_l = vec_min(B_l, rgbclip); \
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B_r = vec_min(B_r, rgbclip); \
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\
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R_l = vec_sr(R_l, shift22); \
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R_r = vec_sr(R_r, shift22); \
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G_l = vec_sr(G_l, shift22); \
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G_r = vec_sr(G_r, shift22); \
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B_l = vec_sr(B_l, shift22); \
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B_r = vec_sr(B_r, shift22); \
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\
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rd16 = vec_packsu(R_l, R_r); \
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gd16 = vec_packsu(G_l, G_r); \
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bd16 = vec_packsu(B_l, B_r); \
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rd = vec_packsu(rd16, zero16); \
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gd = vec_packsu(gd16, zero16); \
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bd = vec_packsu(bd16, zero16); \
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\
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switch(target) { \
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case AV_PIX_FMT_RGB24: \
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out0 = vec_perm(rd, gd, perm3rg0); \
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out0 = vec_perm(out0, bd, perm3tb0); \
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out1 = vec_perm(rd, gd, perm3rg1); \
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out1 = vec_perm(out1, bd, perm3tb1); \
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\
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vec_vsx_st(out0, 0, dest); \
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vec_vsx_st(out1, 16, dest); \
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\
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dest += 24; \
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break; \
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case AV_PIX_FMT_BGR24: \
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out0 = vec_perm(bd, gd, perm3rg0); \
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out0 = vec_perm(out0, rd, perm3tb0); \
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out1 = vec_perm(bd, gd, perm3rg1); \
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out1 = vec_perm(out1, rd, perm3tb1); \
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\
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vec_vsx_st(out0, 0, dest); \
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vec_vsx_st(out1, 16, dest); \
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\
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dest += 24; \
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break; \
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case AV_PIX_FMT_BGRA: \
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out0 = vec_mergeh(bd, gd); \
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out1 = vec_mergeh(rd, ad); \
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\
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 0, dest); \
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 16, dest); \
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\
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dest += 32; \
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break; \
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case AV_PIX_FMT_RGBA: \
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out0 = vec_mergeh(rd, gd); \
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out1 = vec_mergeh(bd, ad); \
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\
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 0, dest); \
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 16, dest); \
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\
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dest += 32; \
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break; \
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case AV_PIX_FMT_ARGB: \
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out0 = vec_mergeh(ad, rd); \
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out1 = vec_mergeh(gd, bd); \
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\
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 0, dest); \
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 16, dest); \
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\
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dest += 32; \
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break; \
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case AV_PIX_FMT_ABGR: \
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out0 = vec_mergeh(ad, bd); \
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out1 = vec_mergeh(gd, rd); \
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\
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 0, dest); \
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1); \
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vec_vsx_st(tmp8, 16, dest); \
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\
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dest += 32; \
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break; \
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}
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static av_always_inline void
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yuv2rgb_full_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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@ -547,105 +645,196 @@ yuv2rgb_full_1_vsx_template(SwsContext *c, const int16_t *buf0,
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B_r = vec_mul(vu32_r, u2b_coeff);
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B_r = vec_add(B_r, vy32_r);
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R_l = vec_max(R_l, zero32);
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R_r = vec_max(R_r, zero32);
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G_l = vec_max(G_l, zero32);
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G_r = vec_max(G_r, zero32);
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B_l = vec_max(B_l, zero32);
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B_r = vec_max(B_r, zero32);
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R_l = vec_min(R_l, rgbclip);
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R_r = vec_min(R_r, rgbclip);
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G_l = vec_min(G_l, rgbclip);
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G_r = vec_min(G_r, rgbclip);
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B_l = vec_min(B_l, rgbclip);
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B_r = vec_min(B_r, rgbclip);
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R_l = vec_sr(R_l, shift22);
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R_r = vec_sr(R_r, shift22);
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G_l = vec_sr(G_l, shift22);
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G_r = vec_sr(G_r, shift22);
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B_l = vec_sr(B_l, shift22);
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B_r = vec_sr(B_r, shift22);
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rd16 = vec_packsu(R_l, R_r);
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gd16 = vec_packsu(G_l, G_r);
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bd16 = vec_packsu(B_l, B_r);
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rd = vec_packsu(rd16, zero16);
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gd = vec_packsu(gd16, zero16);
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bd = vec_packsu(bd16, zero16);
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switch(target) {
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case AV_PIX_FMT_RGB24:
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out0 = vec_perm(rd, gd, perm3rg0);
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out0 = vec_perm(out0, bd, perm3tb0);
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out1 = vec_perm(rd, gd, perm3rg1);
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out1 = vec_perm(out1, bd, perm3tb1);
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vec_vsx_st(out0, 0, dest);
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vec_vsx_st(out1, 16, dest);
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dest += 24;
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break;
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case AV_PIX_FMT_BGR24:
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out0 = vec_perm(bd, gd, perm3rg0);
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out0 = vec_perm(out0, rd, perm3tb0);
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out1 = vec_perm(bd, gd, perm3rg1);
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out1 = vec_perm(out1, rd, perm3tb1);
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vec_vsx_st(out0, 0, dest);
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vec_vsx_st(out1, 16, dest);
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dest += 24;
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break;
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case AV_PIX_FMT_BGRA:
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out0 = vec_mergeh(bd, gd);
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out1 = vec_mergeh(rd, ad);
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 0, dest);
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 16, dest);
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dest += 32;
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break;
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case AV_PIX_FMT_RGBA:
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out0 = vec_mergeh(rd, gd);
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out1 = vec_mergeh(bd, ad);
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 0, dest);
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 16, dest);
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dest += 32;
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break;
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case AV_PIX_FMT_ARGB:
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out0 = vec_mergeh(ad, rd);
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out1 = vec_mergeh(gd, bd);
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 0, dest);
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 16, dest);
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dest += 32;
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break;
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case AV_PIX_FMT_ABGR:
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out0 = vec_mergeh(ad, bd);
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out1 = vec_mergeh(gd, rd);
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tmp8 = (vector uint8_t) vec_mergeh((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 0, dest);
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tmp8 = (vector uint8_t) vec_mergel((vector uint16_t) out0, (vector uint16_t) out1);
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vec_vsx_st(tmp8, 16, dest);
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dest += 32;
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break;
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}
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WRITERGB
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}
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}
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static av_always_inline void
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yuv2rgb_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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int hasAlpha)
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{
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const int16_t *ubuf0 = ubuf[0], *vbuf0 = vbuf[0];
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const int16_t *ubuf1 = ubuf[1], *vbuf1 = vbuf[1];
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vector int16_t vy, vu, vv, A = vec_splat_s16(0), tmp16;
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vector int32_t vy32_l, vy32_r, vu32_l, vu32_r, vv32_l, vv32_r, tmp32, tmp32_2;
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vector int32_t vud32_l, vud32_r, vvd32_l, vvd32_r;
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vector int32_t R_l, R_r, G_l, G_r, B_l, B_r;
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vector uint16_t rd16, gd16, bd16;
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vector uint8_t rd, bd, gd, ad, out0, out1, tmp8;
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const vector uint16_t zero16 = vec_splat_u16(0);
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const vector int32_t y_offset = vec_splats(c->yuv2rgb_y_offset);
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const vector int32_t y_coeff = vec_splats(c->yuv2rgb_y_coeff);
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const vector int32_t y_add = vec_splats(1 << 21);
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const vector int32_t v2r_coeff = vec_splats(c->yuv2rgb_v2r_coeff);
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const vector int32_t v2g_coeff = vec_splats(c->yuv2rgb_v2g_coeff);
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const vector int32_t u2g_coeff = vec_splats(c->yuv2rgb_u2g_coeff);
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const vector int32_t u2b_coeff = vec_splats(c->yuv2rgb_u2b_coeff);
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const vector int32_t rgbclip = vec_splats(1 << 30);
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const vector int32_t zero32 = vec_splat_s32(0);
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const vector uint32_t shift2 = vec_splat_u32(2);
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const vector uint32_t shift22 = vec_splats(22U);
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const vector uint16_t sub7 = vec_splats((uint16_t) (128 << 7));
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const vector uint16_t sub8 = vec_splats((uint16_t) (128 << 8));
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const vector int16_t mul4 = vec_splat_s16(4);
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const vector int16_t mul8 = vec_splat_s16(8);
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const vector int16_t add64 = vec_splat_s16(64);
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const vector uint16_t shift7 = vec_splat_u16(7);
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const vector int16_t max255 = vec_splat_s16(255);
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int i;
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// Various permutations
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const vector uint8_t doubleleft = (vector uint8_t) {0, 1, 2, 3,
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0, 1, 2, 3,
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4, 5, 6, 7,
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4, 5, 6, 7 };
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const vector uint8_t doubleright = (vector uint8_t) {8, 9, 10, 11,
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8, 9, 10, 11,
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12, 13, 14, 15,
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12, 13, 14, 15 };
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const vector uint8_t perm3rg0 = (vector uint8_t) {0x0, 0x10, 0,
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0x1, 0x11, 0,
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0x2, 0x12, 0,
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0x3, 0x13, 0,
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0x4, 0x14, 0,
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0x5 };
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const vector uint8_t perm3rg1 = (vector uint8_t) { 0x15, 0,
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0x6, 0x16, 0,
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0x7, 0x17, 0 };
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const vector uint8_t perm3tb0 = (vector uint8_t) {0x0, 0x1, 0x10,
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0x3, 0x4, 0x11,
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0x6, 0x7, 0x12,
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0x9, 0xa, 0x13,
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0xc, 0xd, 0x14,
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0xf };
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const vector uint8_t perm3tb1 = (vector uint8_t) { 0x0, 0x15,
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0x2, 0x3, 0x16,
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0x5, 0x6, 0x17 };
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for (i = 0; i < (dstW + 1) >> 1; i += 8) { // The x86 asm also overwrites padding bytes.
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vy = vec_ld(0, &buf0[i * 2]);
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vy32_l = vec_unpackh(vy);
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vy32_r = vec_unpackl(vy);
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vy32_l = vec_sl(vy32_l, shift2);
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vy32_r = vec_sl(vy32_r, shift2);
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vu = vec_ld(0, &ubuf0[i]);
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vv = vec_ld(0, &vbuf0[i]);
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if (uvalpha < 2048) {
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vu = (vector int16_t) vec_sub((vector uint16_t) vu, sub7);
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vv = (vector int16_t) vec_sub((vector uint16_t) vv, sub7);
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tmp32 = vec_mule(vu, mul4);
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tmp32_2 = vec_mulo(vu, mul4);
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vu32_l = vec_mergeh(tmp32, tmp32_2);
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vu32_r = vec_mergel(tmp32, tmp32_2);
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tmp32 = vec_mule(vv, mul4);
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tmp32_2 = vec_mulo(vv, mul4);
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vv32_l = vec_mergeh(tmp32, tmp32_2);
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vv32_r = vec_mergel(tmp32, tmp32_2);
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} else {
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tmp16 = vec_ld(0, &ubuf1[i]);
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vu = vec_add(vu, tmp16);
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vu = (vector int16_t) vec_sub((vector uint16_t) vu, sub8);
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tmp16 = vec_ld(0, &vbuf1[i]);
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vv = vec_add(vv, tmp16);
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vv = (vector int16_t) vec_sub((vector uint16_t) vv, sub8);
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vu32_l = vec_mule(vu, mul8);
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vu32_r = vec_mulo(vu, mul8);
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vv32_l = vec_mule(vv, mul8);
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vv32_r = vec_mulo(vv, mul8);
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}
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if (hasAlpha) {
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A = vec_ld(0, &abuf0[i]);
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A = vec_add(A, add64);
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A = vec_sr(A, shift7);
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A = vec_max(A, max255);
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ad = vec_packsu(A, (vector int16_t) zero16);
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} else {
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ad = vec_splats((uint8_t) 255);
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}
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vy32_l = vec_sub(vy32_l, y_offset);
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vy32_r = vec_sub(vy32_r, y_offset);
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vy32_l = vec_mul(vy32_l, y_coeff);
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vy32_r = vec_mul(vy32_r, y_coeff);
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vy32_l = vec_add(vy32_l, y_add);
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vy32_r = vec_add(vy32_r, y_add);
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// Use the first UV half
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vud32_l = vec_perm(vu32_l, vu32_l, doubleleft);
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vud32_r = vec_perm(vu32_l, vu32_l, doubleright);
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vvd32_l = vec_perm(vv32_l, vv32_l, doubleleft);
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vvd32_r = vec_perm(vv32_l, vv32_l, doubleright);
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R_l = vec_mul(vvd32_l, v2r_coeff);
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R_l = vec_add(R_l, vy32_l);
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R_r = vec_mul(vvd32_r, v2r_coeff);
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R_r = vec_add(R_r, vy32_r);
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G_l = vec_mul(vvd32_l, v2g_coeff);
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tmp32 = vec_mul(vud32_l, u2g_coeff);
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G_l = vec_add(G_l, vy32_l);
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G_l = vec_add(G_l, tmp32);
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G_r = vec_mul(vvd32_r, v2g_coeff);
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tmp32 = vec_mul(vud32_r, u2g_coeff);
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G_r = vec_add(G_r, vy32_r);
|
||||
G_r = vec_add(G_r, tmp32);
|
||||
|
||||
B_l = vec_mul(vud32_l, u2b_coeff);
|
||||
B_l = vec_add(B_l, vy32_l);
|
||||
B_r = vec_mul(vud32_r, u2b_coeff);
|
||||
B_r = vec_add(B_r, vy32_r);
|
||||
|
||||
WRITERGB
|
||||
|
||||
// New Y for the second half
|
||||
vy = vec_ld(16, &buf0[i * 2]);
|
||||
vy32_l = vec_unpackh(vy);
|
||||
vy32_r = vec_unpackl(vy);
|
||||
vy32_l = vec_sl(vy32_l, shift2);
|
||||
vy32_r = vec_sl(vy32_r, shift2);
|
||||
|
||||
vy32_l = vec_sub(vy32_l, y_offset);
|
||||
vy32_r = vec_sub(vy32_r, y_offset);
|
||||
vy32_l = vec_mul(vy32_l, y_coeff);
|
||||
vy32_r = vec_mul(vy32_r, y_coeff);
|
||||
vy32_l = vec_add(vy32_l, y_add);
|
||||
vy32_r = vec_add(vy32_r, y_add);
|
||||
|
||||
// Second UV half
|
||||
vud32_l = vec_perm(vu32_r, vu32_r, doubleleft);
|
||||
vud32_r = vec_perm(vu32_r, vu32_r, doubleright);
|
||||
vvd32_l = vec_perm(vv32_r, vv32_r, doubleleft);
|
||||
vvd32_r = vec_perm(vv32_r, vv32_r, doubleright);
|
||||
|
||||
R_l = vec_mul(vvd32_l, v2r_coeff);
|
||||
R_l = vec_add(R_l, vy32_l);
|
||||
R_r = vec_mul(vvd32_r, v2r_coeff);
|
||||
R_r = vec_add(R_r, vy32_r);
|
||||
G_l = vec_mul(vvd32_l, v2g_coeff);
|
||||
tmp32 = vec_mul(vud32_l, u2g_coeff);
|
||||
G_l = vec_add(G_l, vy32_l);
|
||||
G_l = vec_add(G_l, tmp32);
|
||||
G_r = vec_mul(vvd32_r, v2g_coeff);
|
||||
tmp32 = vec_mul(vud32_r, u2g_coeff);
|
||||
G_r = vec_add(G_r, vy32_r);
|
||||
G_r = vec_add(G_r, tmp32);
|
||||
|
||||
B_l = vec_mul(vud32_l, u2b_coeff);
|
||||
B_l = vec_add(B_l, vy32_l);
|
||||
B_r = vec_mul(vud32_r, u2b_coeff);
|
||||
B_r = vec_add(B_r, vy32_r);
|
||||
|
||||
WRITERGB
|
||||
}
|
||||
}
|
||||
|
||||
#undef WRITERGB
|
||||
|
||||
#define YUV2RGBWRAPPER(name, base, ext, fmt, hasAlpha) \
|
||||
static void name ## ext ## _1_vsx(SwsContext *c, const int16_t *buf0, \
|
||||
const int16_t *ubuf[2], const int16_t *vbuf[2], \
|
||||
|
|
@ -656,6 +845,14 @@ static void name ## ext ## _1_vsx(SwsContext *c, const int16_t *buf0, \
|
|||
dstW, uvalpha, y, fmt, hasAlpha); \
|
||||
}
|
||||
|
||||
YUV2RGBWRAPPER(yuv2, rgb, bgrx32, AV_PIX_FMT_BGRA, 0)
|
||||
YUV2RGBWRAPPER(yuv2, rgb, rgbx32, AV_PIX_FMT_RGBA, 0)
|
||||
YUV2RGBWRAPPER(yuv2, rgb, xrgb32, AV_PIX_FMT_ARGB, 0)
|
||||
YUV2RGBWRAPPER(yuv2, rgb, xbgr32, AV_PIX_FMT_ABGR, 0)
|
||||
|
||||
YUV2RGBWRAPPER(yuv2, rgb, rgb24, AV_PIX_FMT_RGB24, 0)
|
||||
YUV2RGBWRAPPER(yuv2, rgb, bgr24, AV_PIX_FMT_BGR24, 0)
|
||||
|
||||
YUV2RGBWRAPPER(yuv2, rgb_full, bgrx32_full, AV_PIX_FMT_BGRA, 0)
|
||||
YUV2RGBWRAPPER(yuv2, rgb_full, rgbx32_full, AV_PIX_FMT_RGBA, 0)
|
||||
YUV2RGBWRAPPER(yuv2, rgb_full, xrgb32_full, AV_PIX_FMT_ARGB, 0)
|
||||
|
|
@ -1089,6 +1286,44 @@ av_cold void ff_sws_init_swscale_vsx(SwsContext *c)
|
|||
c->yuv2packed2 = yuv2uyvy422_2_vsx;
|
||||
c->yuv2packedX = yuv2uyvy422_X_vsx;
|
||||
break;
|
||||
case AV_PIX_FMT_BGRA:
|
||||
if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
|
||||
if (!c->needAlpha) {
|
||||
c->yuv2packed1 = yuv2bgrx32_1_vsx;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case AV_PIX_FMT_RGBA:
|
||||
if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
|
||||
if (!c->needAlpha) {
|
||||
c->yuv2packed1 = yuv2rgbx32_1_vsx;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case AV_PIX_FMT_ARGB:
|
||||
if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
|
||||
if (!c->needAlpha) {
|
||||
c->yuv2packed1 = yuv2xrgb32_1_vsx;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case AV_PIX_FMT_ABGR:
|
||||
if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
|
||||
if (!c->needAlpha) {
|
||||
c->yuv2packed1 = yuv2xbgr32_1_vsx;
|
||||
}
|
||||
}
|
||||
break;
|
||||
case AV_PIX_FMT_RGB24:
|
||||
if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
|
||||
c->yuv2packed1 = yuv2rgb24_1_vsx;
|
||||
}
|
||||
break;
|
||||
case AV_PIX_FMT_BGR24:
|
||||
if (HAVE_POWER8 && cpu_flags & AV_CPU_FLAG_POWER8) {
|
||||
c->yuv2packed1 = yuv2bgr24_1_vsx;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
#endif /* !HAVE_BIGENDIAN */
|
||||
|
|
|
|||
Loading…
Reference in New Issue