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65 lines
1.8 KiB
C++
65 lines
1.8 KiB
C++
/* ResidualVM - A 3D game interpreter
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*
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* ResidualVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the AUTHORS
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* file distributed with this source distribution.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library 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 GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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*/
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#ifndef GRIM_PATCHR_H
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#define GRIM_PATCHR_H
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namespace Common {
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template<class T> class Array;
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class String;
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class SeekableReadStream;
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}
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namespace Grim {
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class Patchr {
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public:
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Patchr(): _data(NULL), _err(false), _kMd5size(5000), _kMaxFileSize(0x100000) {}
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~Patchr() { if (_data) delete[] _data; }
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void loadPatch(Common::SeekableReadStream *patchStream);
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bool patchFile(Common::SeekableReadStream *&file, Common::String &name);
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private:
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uint32 _kMaxFileSize;
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uint32 _kMd5size;
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enum Instruction { BEGIN, END, REPLACE, INSERT, DELETE, FILL, COPY, INVALID };
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static const char *InstructionS[8];
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struct Op {
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Instruction ist;
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Common::Array<Common::String> args;
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uint line_n;
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};
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Common::Array<Op> _patch;
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byte *_data;
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Op _curLine;
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bool _err;
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uint32 calcIncSize(Common::Array<Op>::const_iterator start);
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uint32 str2num(Common::String num);
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void err(const char *s);
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};
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} // end of namespace Grim
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#endif
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