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annotate src/libm/s_fabs.c @ 2824:4dba7aa7ea77

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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
rev   line source
2756
a98604b691c8 Expanded the libm support and put it into a separate directory.
Sam Lantinga <slouken@libsdl.org>
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1 /* @(#)s_fabs.c 5.1 93/09/24 */
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2 /*
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3 * ====================================================
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4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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5 *
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6 * Developed at SunPro, a Sun Microsystems, Inc. business.
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7 * Permission to use, copy, modify, and distribute this
a98604b691c8 Expanded the libm support and put it into a separate directory.
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8 * software is freely granted, provided that this notice
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9 * is preserved.
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10 * ====================================================
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11 */
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12
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13 #if defined(LIBM_SCCS) && !defined(lint)
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14 static char rcsid[] = "$NetBSD: s_fabs.c,v 1.7 1995/05/10 20:47:13 jtc Exp $";
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15 #endif
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16
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17 /*
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18 * fabs(x) returns the absolute value of x.
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19 */
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20
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21 #include "math.h"
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22 #include "math_private.h"
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23
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24 libm_hidden_proto(fabs)
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25 #ifdef __STDC__
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26 double fabs(double x)
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27 #else
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28 double fabs(x)
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29 double x;
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30 #endif
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31 {
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32 u_int32_t high;
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33 GET_HIGH_WORD(high, x);
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34 SET_HIGH_WORD(x, high & 0x7fffffff);
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35 return x;
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36 }
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37
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38 libm_hidden_def(fabs)