Mercurial > sdl-ios-xcode
view src/libm/s_fabs.c @ 2824:4dba7aa7ea77
Added slow but complete blit fallback
Don't try to RLE encode surfaces that have alpha channel and alpha modulation
Don't turn on blending when converting an RGB surface to RGBA format
Do turn on blending when converting colorkey to alpha channel
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Tue, 02 Dec 2008 17:14:04 +0000 |
parents | a98604b691c8 |
children | dc1eb82ffdaa |
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/* @(#)s_fabs.c 5.1 93/09/24 */ /* * ==================================================== * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. * * Developed at SunPro, a Sun Microsystems, Inc. business. * Permission to use, copy, modify, and distribute this * software is freely granted, provided that this notice * is preserved. * ==================================================== */ #if defined(LIBM_SCCS) && !defined(lint) static char rcsid[] = "$NetBSD: s_fabs.c,v 1.7 1995/05/10 20:47:13 jtc Exp $"; #endif /* * fabs(x) returns the absolute value of x. */ #include "math.h" #include "math_private.h" libm_hidden_proto(fabs) #ifdef __STDC__ double fabs(double x) #else double fabs(x) double x; #endif { u_int32_t high; GET_HIGH_WORD(high, x); SET_HIGH_WORD(x, high & 0x7fffffff); return x; } libm_hidden_def(fabs)