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added OS/2 version of IROUND (Evgeny Kotsuba)

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This commit is contained in:
Brian Paul
2003-03-07 14:54:22 +00:00
parent b5a56e2480
commit 009bbccb69
1 changed files with 11 additions and 2 deletions
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13
src/mesa/main/imports.h
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@@ -1,4 +1,4 @@
/* $Id: imports.h,v 1.17 2003/03/04 16:33:53 brianp Exp $ */
/* $Id: imports.h,v 1.18 2003/03/07 14:54:22 brianp Exp $ */
/*
* Mesa 3-D graphics library
@@ -330,8 +330,17 @@ long iround(float f);
parm [8087] \
value [eax] \
modify exact [eax];
#define IROUND(x) iround(x)
#elif defined(__OS2__)
#ifndef FIST_MAGIC
#define FIST_MAGIC ((((65536.0 * 65536.0 * 16)+(65536.0 * 0.5))* 65536.0))
#endif
inline int iround(float x)
{
double dtemp = FIST_MAGIC + x;
return ((*(int *)&dtemp) - 0x80000000);
}
#define IROUND(f) iround((float)f)
#else
#define IROUND(f) ((int) (((f) >= 0.0F) ? ((f) + 0.5F) : ((f) - 0.5F)))
#endif