From 1046cba24be41c624489f40513aeaba7e52ca9ff Mon Sep 17 00:00:00 2001 From: Lauri Kasanen Date: Tue, 27 Nov 2018 15:26:00 +0200 Subject: swscale/output: VSX-optimize nbps yuv2plane1 ./ffmpeg_g -f rawvideo -pix_fmt rgb24 -s hd1080 -i /dev/zero -pix_fmt yuv420p9le \ -f null -vframes 100 -v error -nostats - Speedups: yuv2plane1_9BE_vsx 11.2042 yuv2plane1_9LE_vsx 11.156 yuv2plane1_10BE_vsx 9.89428 yuv2plane1_10LE_vsx 10.3637 yuv2plane1_12BE_vsx 9.71923 yuv2plane1_12LE_vsx 11.0404 yuv2plane1_14BE_vsx 10.1763 yuv2plane1_14LE_vsx 11.2728 Fate passes, each format tested with an image to video conversion. Signed-off-by: Michael Niedermayer --- libswscale/ppc/swscale_vsx.c | 83 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 83 insertions(+) (limited to 'libswscale') diff --git a/libswscale/ppc/swscale_vsx.c b/libswscale/ppc/swscale_vsx.c index 853b587..6462c11 100644 --- a/libswscale/ppc/swscale_vsx.c +++ b/libswscale/ppc/swscale_vsx.c @@ -131,6 +131,75 @@ static void yuv2plane1_8_vsx(const int16_t *src, uint8_t *dest, int dstW, yuv2plane1_8_u(src, dest, dstW, dither, offset, i); } +#if !HAVE_BIGENDIAN + +#define output_pixel(pos, val) \ + if (big_endian) { \ + AV_WB16(pos, av_clip_uintp2(val >> shift, output_bits)); \ + } else { \ + AV_WL16(pos, av_clip_uintp2(val >> shift, output_bits)); \ + } + +static void yuv2plane1_nbps_u(const int16_t *src, uint16_t *dest, int dstW, + int big_endian, int output_bits, int start) +{ + int i; + int shift = 15 - output_bits; + + for (i = start; i < dstW; i++) { + int val = src[i] + (1 << (shift - 1)); + output_pixel(&dest[i], val); + } +} + +static void yuv2plane1_nbps_vsx(const int16_t *src, uint16_t *dest, int dstW, + int big_endian, int output_bits) +{ + const int dst_u = -(uintptr_t)dest & 7; + const int shift = 15 - output_bits; + const int add = (1 << (shift - 1)); + const int clip = (1 << output_bits) - 1; + const vector uint16_t vadd = (vector uint16_t) {add, add, add, add, add, add, add, add}; + const vector uint16_t vswap = (vector uint16_t) vec_splat_u16(big_endian ? 8 : 0); + const vector uint16_t vshift = (vector uint16_t) vec_splat_u16(shift); + const vector uint16_t vlargest = (vector uint16_t) {clip, clip, clip, clip, clip, clip, clip, clip}; + vector uint16_t v; + int i; + + yuv2plane1_nbps_u(src, dest, dst_u, big_endian, output_bits, 0); + + for (i = dst_u; i < dstW - 7; i += 8) { + v = vec_vsx_ld(0, (const uint16_t *) &src[i]); + v = vec_add(v, vadd); + v = vec_sr(v, vshift); + v = vec_min(v, vlargest); + v = vec_rl(v, vswap); + vec_st(v, 0, &dest[i]); + } + + yuv2plane1_nbps_u(src, dest, dstW, big_endian, output_bits, i); +} + +#define yuv2NBPS(bits, BE_LE, is_be, template_size, typeX_t) \ +static void yuv2plane1_ ## bits ## BE_LE ## _vsx(const int16_t *src, \ + uint8_t *dest, int dstW, \ + const uint8_t *dither, int offset) \ +{ \ + yuv2plane1_ ## template_size ## _vsx((const typeX_t *) src, \ + (uint16_t *) dest, dstW, is_be, bits); \ +} + +yuv2NBPS( 9, BE, 1, nbps, int16_t) +yuv2NBPS( 9, LE, 0, nbps, int16_t) +yuv2NBPS(10, BE, 1, nbps, int16_t) +yuv2NBPS(10, LE, 0, nbps, int16_t) +yuv2NBPS(12, BE, 1, nbps, int16_t) +yuv2NBPS(12, LE, 0, nbps, int16_t) +yuv2NBPS(14, BE, 1, nbps, int16_t) +yuv2NBPS(14, LE, 0, nbps, int16_t) + +#endif /* !HAVE_BIGENDIAN */ + #endif /* HAVE_VSX */ av_cold void ff_sws_init_swscale_vsx(SwsContext *c) @@ -158,6 +227,20 @@ av_cold void ff_sws_init_swscale_vsx(SwsContext *c) case 8: c->yuv2plane1 = yuv2plane1_8_vsx; break; +#if !HAVE_BIGENDIAN + case 9: + c->yuv2plane1 = isBE(dstFormat) ? yuv2plane1_9BE_vsx : yuv2plane1_9LE_vsx; + break; + case 10: + c->yuv2plane1 = isBE(dstFormat) ? yuv2plane1_10BE_vsx : yuv2plane1_10LE_vsx; + break; + case 12: + c->yuv2plane1 = isBE(dstFormat) ? yuv2plane1_12BE_vsx : yuv2plane1_12LE_vsx; + break; + case 14: + c->yuv2plane1 = isBE(dstFormat) ? yuv2plane1_14BE_vsx : yuv2plane1_14LE_vsx; + break; +#endif } } #endif /* HAVE_VSX */ -- cgit v1.1