mirror of
https://github.com/vmangos/core
synced 2026-08-14 16:29:10 -04:00
129 lines
3.5 KiB
C++
129 lines
3.5 KiB
C++
/*
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* This file is part of the Continued-MaNGOS Project
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*
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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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*
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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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*
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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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#include "mpq_libmpq.h"
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#include <deque>
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#include <stdio.h>
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ArchiveSet gOpenArchives;
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MPQArchive::MPQArchive(const char* filename)
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{
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int result = libmpq__archive_open(&mpq_a, filename, 0);
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printf("Opening %s\n", filename);
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if (result)
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{
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switch (result)
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{
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case LIBMPQ_ERROR_MALLOC: /* error on file operation */
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printf("Error opening archive '%s': Run off free RAM memory\n", filename);
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break;
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case LIBMPQ_ERROR_OPEN:
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printf("Error opening archive '%s': Can't open archive\n", filename);
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break;
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case LIBMPQ_ERROR_SEEK:
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printf("Error opening archive '%s': Can't seek begin of archive. File corrupt?\n", filename);
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break;
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case LIBMPQ_ERROR_FORMAT:
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printf("Error opening archive '%s': Invalid MPQ format. File corrupt?\n", filename);
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break;
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case LIBMPQ_ERROR_READ:
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printf("Error opening archive '%s': Can't read MPQ file. File corrupt?\n", filename);
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break;
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}
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return;
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}
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gOpenArchives.push_front(this);
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}
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void MPQArchive::close()
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{
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libmpq__archive_close(mpq_a);
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}
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MPQFile::MPQFile(const char* filename):
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eof(false),
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buffer(0),
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pointer(0),
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size(0)
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{
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for (ArchiveSet::iterator i = gOpenArchives.begin(); i != gOpenArchives.end(); ++i)
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{
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mpq_archive* mpq_a = (*i)->mpq_a;
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uint32 filenum;
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if (libmpq__file_number(mpq_a, filename, &filenum)) continue;
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libmpq__off_t transferred;
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libmpq__file_unpacked_size(mpq_a, filenum, &size);
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// HACK: in patch.mpq some files don't want to open and give 1 for filesize
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if (size <= 1)
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{
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// printf("info: file %s has size %d; considered dummy file.\n", filename, size);
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eof = true;
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buffer = 0;
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return;
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}
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buffer = new char[size];
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//libmpq_file_getdata
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libmpq__file_read(mpq_a, filenum, (unsigned char*)buffer, size, &transferred);
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/*libmpq_file_getdata(&mpq_a, hash, fileno, (unsigned char*)buffer);*/
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return;
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}
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eof = true;
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buffer = 0;
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}
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size_t MPQFile::read(void* dest, size_t bytes)
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{
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if (eof) return 0;
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libmpq__off_t rpos = static_cast <libmpq__off_t> (pointer + bytes);
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if (rpos > size)
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{
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bytes = size - pointer;
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eof = true;
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}
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memcpy(dest, &(buffer[pointer]), bytes);
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pointer = rpos;
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return bytes;
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}
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void MPQFile::seek(int offset)
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{
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pointer = offset;
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eof = (pointer >= size);
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}
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void MPQFile::seekRelative(int offset)
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{
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pointer += offset;
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eof = (pointer >= size);
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}
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void MPQFile::close()
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{
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if (buffer) delete[] buffer;
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buffer = 0;
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eof = true;
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}
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