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https://github.com/ZDoom/Raze.git
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155 lines
3.1 KiB
C
155 lines
3.1 KiB
C
/*
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* util_lib.c
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* Utility functions to emulate MACT
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*
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* by Jonathon Fowler
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*
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* Since we weren't given the source for MACT386.LIB so I've had to do some
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* creative interpolation here.
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*
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*/
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//-------------------------------------------------------------------------
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/*
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Duke Nukem Copyright (C) 1996, 2003 3D Realms Entertainment
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This file is part of Duke Nukem 3D version 1.5 - Atomic Edition
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Duke Nukem 3D is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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//-------------------------------------------------------------------------
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#include "compat.h"
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#include "util_lib.h"
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#include "baselayer.h"
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//#define MOTOROLA
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static void (*ShutDown)(void) = NULL; // this is defined by whoever links us
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void RegisterShutdownFunction(void (* sh)(void))
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{
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ShutDown = sh;
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}
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#ifndef RENDERTYPEWIN
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void Error(char *error, ...)
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{
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va_list va;
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if (ShutDown) ShutDown();
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if (error)
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{
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va_start(va, error);
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vprintf(error, va);
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va_end(va);
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printf("\n\n");
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}
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exit((error != NULL));
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}
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#endif
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char CheckParm(char *check)
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{
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int32_t c;
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for (c=1; c<_buildargc; c++)
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{
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if (_buildargv[c][0] == '/' || _buildargv[c][0] == '-')
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if (!Bstrcasecmp(&_buildargv[c][1], check)) return c;
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}
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return 0;
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}
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void *SafeMalloc(int32_t size)
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{
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void *p;
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p = malloc(size);
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if (!p) Error("SafeMalloc failure for %d bytes",size);
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return p;
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}
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void SafeFree(void * ptr)
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{
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if (!ptr) Error("Tried to deallocate NULL pointer.");
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free(ptr);
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}
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void SafeRealloc(void ** ptr, int32_t newsize)
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{
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void *p;
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p = realloc(*ptr, newsize);
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if (!p) Error("SafeRealloc failure for %d bytes",newsize);
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*ptr = p;
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}
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int32_t ParseHex(char *hex)
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{
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return strtol(hex, NULL, 16);
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}
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int32_t ParseNum(char *str)
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{
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return strtol(str, NULL, 10);
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}
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int16_t MotoShort(int16_t l)
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{
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#if B_LITTLE_ENDIAN != 0
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return l;
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#else
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return ((l & 0x00ff) << 8) | ((l & 0xff00) >> 8);
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#endif
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}
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int16_t IntelShort(int16_t l)
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{
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#if B_BIG_ENDIAN != 0
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return ((l & 0x00ff) << 8) | ((l & 0xff00) >> 8);
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#else
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return l;
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#endif
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}
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int32_t MotoLong(int32_t l)
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{
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#if B_LITTLE_ENDIAN != 0
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return l;
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#else
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int32_t t = ((l & 0x00ff00ffl) << 8) | ((l & 0xff00ff00l) >> 8);
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return ((t & 0x0000ffffl) << 16) | ((t & 0xffff0000l) >> 16);
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#endif
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}
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int32_t IntelLong(int32_t l)
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{
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#if B_BIG_ENDIAN != 0
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int32_t t = ((l & 0x00ff00ffl) << 8) | ((l & 0xff00ff00l) >> 8);
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return ((t & 0x0000ffffl) << 16) | ((t & 0xffff0000l) >> 16);
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#else
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return l;
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#endif
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}
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