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restored test for __alpha in _mesa_win_fog_coords_from_z()

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Brian Paul
2000-10-27 18:38:35 +00:00
parent 7dd57a48e1
commit 1c4b3f4dfb
1 changed files with 4 additions and 3 deletions
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7
src/mesa/main/fog.c
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@@ -1,8 +1,8 @@
/* $Id: fog.c,v 1.21 2000/10/27 16:44:40 keithw Exp $ */
/* $Id: fog.c,v 1.22 2000/10/27 18:38:35 brianp Exp $ */
/*
* Mesa 3-D graphics library
* Version: 3.3
* Version: 3.5
*
* Copyright (C) 1999-2000 Brian Paul All Rights Reserved.
*
@@ -353,7 +353,8 @@ _mesa_win_fog_coords_from_z( const GLcontext *ctx,
GLfloat ndcz = ((GLfloat) z[i] - tz) * szInv;
GLfloat eyez = d / (c+ndcz);
GLfloat tmp = negDensitySquared * eyez * eyez;
#ifdef __alpha__
#if defined(__alpha__) || defined(__alpha)
/* XXX this underflow check may be needed for other systems */
if (tmp < FLT_MIN_10_EXP)
tmp = FLT_MIN_10_EXP;
#endif