mirror of
https://github.com/DrBeef/JKXR.git
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86 lines
1.9 KiB
C++
86 lines
1.9 KiB
C++
/*
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===========================================================================
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Copyright (C) 2000 - 2013, Raven Software, Inc.
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Copyright (C) 2001 - 2013, Activision, Inc.
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Copyright (C) 2013 - 2015, OpenJK contributors
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This file is part of the OpenJK source code.
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OpenJK is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation.
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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, see <http://www.gnu.org/licenses/>.
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===========================================================================
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*/
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#pragma once
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#include "../qcommon/q_shared.h"
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class IHeapAllocator
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{
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public:
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virtual ~IHeapAllocator() {}
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virtual void ResetHeap() = 0;
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virtual char *MiniHeapAlloc ( int size ) = 0;
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};
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class CMiniHeap : public IHeapAllocator
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{
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private:
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char *mHeap;
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char *mCurrentHeap;
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int mSize;
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public:
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// reset the heap back to the start
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void ResetHeap()
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{
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mCurrentHeap = mHeap;
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}
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// initialise the heap
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CMiniHeap (int size)
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{
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mHeap = (char *)malloc(size);
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mSize = size;
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if (mHeap)
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{
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ResetHeap();
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}
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}
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// free up the heap
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~CMiniHeap()
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{
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if (mHeap)
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{
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free(mHeap);
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}
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}
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// give me some space from the heap please
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char *MiniHeapAlloc(int size)
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{
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if ((size_t)size < (mSize - ((size_t)mCurrentHeap - (size_t)mHeap)))
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{
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char *tempAddress = mCurrentHeap;
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mCurrentHeap += size;
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return tempAddress;
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}
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return NULL;
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}
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};
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// this is in the parent executable, so access ri->GetG2VertSpaceServer() from the rd backends!
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extern IHeapAllocator *G2VertSpaceServer;
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extern IHeapAllocator *G2VertSpaceClient;
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