/* * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVUTIL_FLOAT2HALF_H#define AVUTIL_FLOAT2HALF_H #include <stdint.h>#include "intfloat.h" #include "config.h" typedef struct Float2HalfTables {#if HAVE_FAST_FLOAT16    uint8_t dummy;#else    uint16_t basetable[512];    uint8_t shifttable[512];#endif} Float2HalfTables; void ff_init_float2half_tables(Float2HalfTables *t); static inline uint16_t float2half(uint32_t f, const Float2HalfTables *t){#if HAVE_FAST_FLOAT16    union {        _Float16 f;        uint16_t i;    } u;    u.f = av_int2float(f);    return u.i;#else    uint16_t h;     h = t->basetable[(f >> 23) & 0x1ff] + ((f & 0x007fffff) >> t->shifttable[(f >> 23) & 0x1ff]);     return h;#endif} #endif /* AVUTIL_FLOAT2HALF_H */