On Thu, Apr 30, 2015 at 01:51:37PM +0200, Nedeljko Babic wrote: > Functions av_gt_sf, av_sqrt_sf and av_sincos_sf added to softfloat > > Signed-off-by: Nedeljko Babic <nedeljko.ba...@imgtec.com> > --- > libavutil/softfloat.h | 93 +++++++++++++++- > libavutil/softfloat_tables.h | 260 > +++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 352 insertions(+), 1 deletion(-) > create mode 100644 libavutil/softfloat_tables.h
[...] > +/** > + * Rounding-to-nearest used. > + */ > +static av_always_inline void av_sincos_sf(int a, int *s, int *c) this function seems to be buggy the sine values are very accurate but the cosine values are not look: (tested with libavutil/softfloat-test and tightened up thresholds) sincos FAIL 8 0.642788 0.766263 0.642788 0.766044 sincos FAIL 14 0.939693 0.342220 0.939693 0.342020 sincos FAIL 15 0.965926 0.259066 0.965926 0.258819 sincos FAIL 16 0.984808 0.173942 0.984808 0.173648 sincos FAIL 17 0.996195 0.087495 0.996195 0.087156 sincos FAIL 24 0.866025 -0.499779 0.866025 -0.500000 sincos FAIL 25 0.819152 -0.573332 0.819152 -0.573576 sincos FAIL 26 0.766044 -0.642526 0.766044 -0.642788 sincos FAIL 44 -0.642788 -0.766263 -0.642788 -0.766044 sincos FAIL 50 -0.939693 -0.342220 -0.939693 -0.342020 sincos FAIL 51 -0.965926 -0.259066 -0.965926 -0.258819 sincos FAIL 52 -0.984808 -0.173942 -0.984808 -0.173648 sincos FAIL 53 -0.996195 -0.087495 -0.996195 -0.087156 sincos FAIL 60 -0.866025 0.499779 -0.866025 0.500000 sincos FAIL 61 -0.819152 0.573332 -0.819152 0.573576 sincos FAIL 62 -0.766044 0.642526 -0.766044 0.642788 sincos FAIL 80 0.642788 0.766263 0.642788 0.766044 sincos FAIL 86 0.939693 0.342220 0.939693 0.342020 sincos FAIL 87 0.965926 0.259066 0.965926 0.258819 sincos FAIL 88 0.984808 0.173942 0.984808 0.173648 sincos FAIL 89 0.996195 0.087495 0.996195 0.087156 sincos FAIL 96 0.866025 -0.499779 0.866025 -0.500000 sincos FAIL 97 0.819152 -0.573332 0.819152 -0.573576 sincos FAIL 98 0.766044 -0.642526 0.766044 -0.642788 sincos FAIL 116 -0.642788 -0.766263 -0.642788 -0.766044 sincos FAIL 122 -0.939693 -0.342220 -0.939693 -0.342020 sincos FAIL 123 -0.965926 -0.259066 -0.965926 -0.258819 sincos FAIL 124 -0.984808 -0.173942 -0.984808 -0.173648 sincos FAIL 125 -0.996195 -0.087495 -0.996195 -0.087156 sincos FAIL 132 -0.866025 0.499779 -0.866025 0.500000 sincos FAIL 133 -0.819152 0.573332 -0.819152 0.573576 sincos FAIL 134 -0.766044 0.642526 -0.766044 0.642788 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The greatest way to live with honor in this world is to be what we pretend to be. -- Socrates
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