From 990bc3f015a4f8fce2eb918375defcd44980a845 Mon Sep 17 00:00:00 2001 From: marha Date: Fri, 8 Jun 2012 09:33:13 +0200 Subject: Used synchronise script to update files --- mesalib/src/gallium/auxiliary/util/u_half.h | 180 ++++++++++++++-------------- 1 file changed, 90 insertions(+), 90 deletions(-) (limited to 'mesalib/src/gallium/auxiliary/util/u_half.h') diff --git a/mesalib/src/gallium/auxiliary/util/u_half.h b/mesalib/src/gallium/auxiliary/util/u_half.h index b19527981..ad030e90c 100644 --- a/mesalib/src/gallium/auxiliary/util/u_half.h +++ b/mesalib/src/gallium/auxiliary/util/u_half.h @@ -1,90 +1,90 @@ -/************************************************************************** - * - * Copyright 2010 Luca Barbieri - * - * Permission is hereby granted, free of charge, to any person obtaining - * a copy of this software and associated documentation files (the - * "Software"), to deal in the Software without restriction, including - * without limitation the rights to use, copy, modify, merge, publish, - * distribute, sublicense, and/or sell copies of the Software, and to - * permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice (including the - * next paragraph) shall be included in all copies or substantial - * portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, - * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF - * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. - * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE - * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION - * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION - * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - * - **************************************************************************/ - - -#ifndef U_HALF_H -#define U_HALF_H - -#include "pipe/p_compiler.h" -#include "util/u_math.h" - -#ifdef __cplusplus -extern "C" { -#endif - -extern const uint32_t util_half_to_float_mantissa_table[2048]; -extern const uint32_t util_half_to_float_exponent_table[64]; -extern const uint32_t util_half_to_float_offset_table[64]; -extern const uint16_t util_float_to_half_base_table[512]; -extern const uint8_t util_float_to_half_shift_table[512]; - -/* - * Note that if the half float is a signaling NaN, the x87 FPU will turn - * it into a quiet NaN immediately upon loading into a float. - * - * Additionally, denormals may be flushed to zero. - * - * To avoid this, use the floatui functions instead of the float ones - * when just doing conversion rather than computation on the resulting - * floats. - */ - -static INLINE uint32_t -util_half_to_floatui(uint16_t h) -{ - unsigned exp = h >> 10; - return util_half_to_float_mantissa_table[util_half_to_float_offset_table[exp] + (h & 0x3ff)] + util_half_to_float_exponent_table[exp]; -} - -static INLINE float -util_half_to_float(uint16_t h) -{ - union fi r; - r.ui = util_half_to_floatui(h); - return r.f; -} - -static INLINE uint16_t -util_floatui_to_half(uint32_t v) -{ - unsigned signexp = v >> 23; - return util_float_to_half_base_table[signexp] + ((v & 0x007fffff) >> util_float_to_half_shift_table[signexp]); -} - -static INLINE uint16_t -util_float_to_half(float f) -{ - union fi i; - i.f = f; - return util_floatui_to_half(i.ui); -} - -#ifdef __cplusplus -} -#endif - -#endif /* U_HALF_H */ - +/************************************************************************** + * + * Copyright 2010 Luca Barbieri + * + * Permission is hereby granted, free of charge, to any person obtaining + * a copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sublicense, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial + * portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. + * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE + * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION + * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION + * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + + +#ifndef U_HALF_H +#define U_HALF_H + +#include "pipe/p_compiler.h" +#include "util/u_math.h" + +#ifdef __cplusplus +extern "C" { +#endif + +extern const uint32_t util_half_to_float_mantissa_table[2048]; +extern const uint32_t util_half_to_float_exponent_table[64]; +extern const uint32_t util_half_to_float_offset_table[64]; +extern const uint16_t util_float_to_half_base_table[512]; +extern const uint8_t util_float_to_half_shift_table[512]; + +/* + * Note that if the half float is a signaling NaN, the x87 FPU will turn + * it into a quiet NaN immediately upon loading into a float. + * + * Additionally, denormals may be flushed to zero. + * + * To avoid this, use the floatui functions instead of the float ones + * when just doing conversion rather than computation on the resulting + * floats. + */ + +static INLINE uint32_t +util_half_to_floatui(uint16_t h) +{ + unsigned exp = h >> 10; + return util_half_to_float_mantissa_table[util_half_to_float_offset_table[exp] + (h & 0x3ff)] + util_half_to_float_exponent_table[exp]; +} + +static INLINE float +util_half_to_float(uint16_t h) +{ + union fi r; + r.ui = util_half_to_floatui(h); + return r.f; +} + +static INLINE uint16_t +util_floatui_to_half(uint32_t v) +{ + unsigned signexp = v >> 23; + return util_float_to_half_base_table[signexp] + ((v & 0x007fffff) >> util_float_to_half_shift_table[signexp]); +} + +static INLINE uint16_t +util_float_to_half(float f) +{ + union fi i; + i.f = f; + return util_floatui_to_half(i.ui); +} + +#ifdef __cplusplus +} +#endif + +#endif /* U_HALF_H */ + -- cgit v1.2.3