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5308333e78
In order to be coherent with the pre-existent API for half floats, this new API for double is the one meant to be used when doing double to float conversions. It is no more than a wrapper for the softfloat.h API but we meant to keep that one private. v2: - Fix bug in _mesa_double_to_float_rtz() in the inf/nan detection using the exponent value. v3: - Replace custom f64 -> f32 implementations with the softfloat one (Andres). v4: - Added API usage clarifying comments (Caio). Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@igalia.com> Signed-off-by: Andres Gomez <agomez@igalia.com> Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>
53 lines
1.7 KiB
C
53 lines
1.7 KiB
C
/*
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* Mesa 3-D graphics library
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*
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* Copyright (C) 2018-2019 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _DOUBLE_H_
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#define _DOUBLE_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* This API is no more than a wrapper to the counterpart softfloat.h
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* calls. Still, softfloat.h conversion API is meant to be kept private. In
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* other words, only use the API published here, instead of calling directly
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* the softfloat.h one.
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*/
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float _mesa_double_to_float(double val);
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float _mesa_double_to_float_rtz(double val);
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static inline float
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_mesa_double_to_float_rtne(double val)
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{
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return _mesa_double_to_float(val);
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}
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#ifdef __cplusplus
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} /* extern C */
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#endif
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#endif /* _DOUBLE_H_ */
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