src/util/double.h

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2018-2019 Intel Corporation
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  */
  24
  25 #ifndef _DOUBLE_H_
  26 #define _DOUBLE_H_
  27
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /*
  34  * This API is no more than a wrapper to the counterpart softfloat.h
  35  * calls. Still, softfloat.h conversion API is meant to be kept private. In
  36  * other words, only use the API published here, instead of calling directly
  37  * the softfloat.h one.
  38  */
  39
  40 float _mesa_double_to_float(double val);
  41 float _mesa_double_to_float_rtz(double val);
  42
  43 static inline float
  44 _mesa_double_to_float_rtne(double val)
  45 {
  46    return _mesa_double_to_float(val);
  47 }
  48
  49 #ifdef __cplusplus
  50 } /* extern C */
  51 #endif
  52
  53 #endif /* _DOUBLE_H_ */