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111 lines
3 KiB
C++
111 lines
3 KiB
C++
#include "mpq_libmpq04.h"
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#include <deque>
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#include <cstdio>
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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, -1);
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printf("Opening %s\n", filename);
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if(result) {
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switch(result) {
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case LIBMPQ_ERROR_OPEN :
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printf("Error opening archive '%s': Does file really exist?\n", filename);
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break;
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case LIBMPQ_ERROR_FORMAT : /* bad file format */
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printf("Error opening archive '%s': Bad file format\n", filename);
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break;
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case LIBMPQ_ERROR_SEEK : /* seeking in file failed */
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printf("Error opening archive '%s': Seeking in file failed\n", filename);
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break;
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case LIBMPQ_ERROR_READ : /* Read error in archive */
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printf("Error opening archive '%s': Read error in archive\n", filename);
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break;
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case LIBMPQ_ERROR_MALLOC : /* maybe not enough memory? :) */
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printf("Error opening archive '%s': Maybe not enough memory\n", filename);
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break;
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default:
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printf("Error opening archive '%s': Unknown error\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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//gOpenArchives.erase(erase(&mpq_a);
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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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// 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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size_t rpos = pointer + bytes;
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if (rpos > size) {
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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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