forked from dolphin-emu/dolphin
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
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// Copyright (C) 2003-2008 Dolphin Project.
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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, version 2.0.
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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 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#ifndef _CHUNKFILE_H
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#define _CHUNKFILE_H
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// Class to read/write/verify hierarchical binary file formats.
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// Grabbed from one of my older projects and modified heavily.
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// Works more like a RIFF file than a Google Protocol Buffer, for example.
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#include "Common.h"
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#include <stdio.h>
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#include <map>
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#include <vector>
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//TO REMEMBER WHEN USING:
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//EITHER a chunk contains ONLY data
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//OR it contains ONLY other chunks
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//otherwise the scheme breaks...
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class ChunkFile
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{
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public:
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enum ChunkFileMode
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{
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MODE_READ,
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MODE_WRITE,
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MODE_VERIFY,
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};
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private:
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struct ChunkInfo
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{
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int startLocation;
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int parentStartLocation;
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int parentEOF;
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unsigned int ID;
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int length;
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};
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ChunkInfo stack[8];
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int stack_ptr;
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char *data;
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int size;
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int eof;
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ChunkFileMode mode;
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FILE *f;
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bool didFail;
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// Used for internal bookkeeping only.
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int ReadInt();
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void WriteInt(int x);
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public:
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ChunkFile(const char *filename, ChunkFileMode mode);
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~ChunkFile();
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// Only pass 4-character IDs.
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bool Descend(const char *id);
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void Ascend();
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//void Do(int &i);
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//bool Do(std::string &s);
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bool Do(void *ptr, int size);
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// Future
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// bool DoCompressed(void *ptr, int size)
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// Store maps to file. Very useful.
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template<class T>
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void Do(std::map<u32, T> &x) {
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}
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// Store vectors.
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template<class T>
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void Do(std::vector<T> &x) {
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}
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// Handle everything else
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template<class T>
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void Do(T &x) {
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Do((void *)&x, sizeof(x));
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}
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int GetCurrentChunkSize();
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bool failed() {return didFail;}
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};
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#endif
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