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added FREXPF() macro (bug 4060)

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Brian Paul
2005-08-12 18:56:56 +00:00
parent f2876d1ee3
commit 6fe7a0dc01
3 changed files with 10 additions and 9 deletions
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8
src/mesa/tnl/t_vb_arbprogram.c
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@@ -2,7 +2,7 @@
* Mesa 3-D graphics library
* Version: 6.3
*
* Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
* Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
@@ -351,11 +351,7 @@ static void do_LOG( struct arb_vp_machine *m, union instruction op )
const GLfloat *arg0 = m->File[op.alu.file0][op.alu.idx0];
GLfloat tmp = FABSF(arg0[0]);
int exponent;
#ifdef _WIN32
GLfloat mantissa = (GLfloat) frexp((double)tmp, &exponent);
#else
GLfloat mantissa = frexpf(tmp, &exponent);
#endif
GLfloat mantissa = FREXPF(tmp, &exponent);
result[0] = (GLfloat) (exponent - 1);
result[1] = 2.0 * mantissa; /* map [.5, 1) -> [1, 2) */