/*

 * 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

}

pnmenc.c:float2half

Line

Count

Source

39

21.8M

{

40

#if HAVE_FAST_FLOAT16

41

    union {

42

        _Float16 f;

43

        uint16_t i;

44

    } u;

45

    u.f = av_int2float(f);

46

    return u.i;

47

#else

48

21.8M

    uint16_t h;

49

50

21.8M

    h = t->basetable[(f >> 23) & 0x1ff] + ((f & 0x007fffff) >> t->shifttable[(f >> 23) & 0x1ff]);

51

52

21.8M

    return h;

53

21.8M

#endif

54

21.8M

}

Unexecuted instantiation: float2half.c:float2half

Unexecuted instantiation: exrenc.c:float2half

#endif /* AVUTIL_FLOAT2HALF_H */