70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
/*
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1997 Greg Lewis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(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. See the
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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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See file, 'COPYING', for details.
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*/
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#include <mutex>
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#include <cstddef>
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#include <cstdarg>
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#include <cstdlib>
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#include <iostream>
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#include <common/threads.hh>
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#include <common/log.hh>
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#include <qbsp/qbsp.hh>
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/*
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==========
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AllocMem
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==========
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*/
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void *AllocMem(int Type, int cElements, bool fZero)
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{
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void *pTemp;
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int cSize;
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if (!(Type == WINDING || Type == OTHER))
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FError("Internal error: invalid memory type {}", Type);
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// For windings, cElements == number of points on winding
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if (Type == WINDING) {
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if (cElements > MAX_POINTS_ON_WINDING)
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FError("Too many points ({}) on winding", cElements);
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// cSize = offsetof(winding_t, points[cElements]) + sizeof(int);
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cSize = offsetof(winding_t, points[0]);
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cSize += cElements * sizeof(static_cast<winding_t *>(nullptr)->points[0]);
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cSize += sizeof(int);
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// Set cElements to 1 so bookkeeping works OK
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cElements = 1;
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} else {
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cSize = cElements;
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}
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pTemp = malloc(cSize);
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if (!pTemp)
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FError("allocation of {} bytes failed", cSize);
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if (fZero)
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memset(pTemp, 0, cSize);
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return pTemp;
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}
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