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#include "mpq_libmpq.h"
#include <deque>
ArchiveSet gOpenArchives;
MPQArchive::MPQArchive(const char* filename)
{
int result = libmpq_archive_open(&mpq_a, (unsigned char*)filename);
printf("Opening %s\n", filename);
if(result) {
switch(result) {
case LIBMPQ_EFILE : /* error on file operation */
printf("Error opening archive '%s': File operation Error\n", filename);
break;
case LIBMPQ_EFILE_FORMAT : /* bad file format */
printf("Error opening archive '%s': Bad file format\n", filename);
break;
case LIBMPQ_EFILE_CORRUPT : /* file corrupt */
printf("Error opening archive '%s': File corrupt\n", filename);
break;
case LIBMPQ_EFILE_NOT_FOUND : /* file in archive not found */
printf("Error opening archive '%s': File in archive not found\n", filename);
break;
case LIBMPQ_EFILE_READ : /* Read error in archive */
printf("Error opening archive '%s': Read error in archive\n", filename);
break;
case LIBMPQ_EALLOCMEM : /* maybe not enough memory? :) */
printf("Error opening archive '%s': Maybe not enough memory\n", filename);
break;
case LIBMPQ_EFREEMEM : /* can not free memory */
printf("Error opening archive '%s': Cannot free memory\n", filename);
break;
case LIBMPQ_EINV_RANGE : /* Given filenumber is out of range */
printf("Error opening archive '%s': Given filenumber is out of range\n", filename);
break;
case LIBMPQ_EHASHTABLE : /* error in reading hashtable */
printf("Error opening archive '%s': Error in reading hashtable\n", filename);
break;
case LIBMPQ_EBLOCKTABLE : /* error in reading blocktable */
printf("Error opening archive '%s': Error in reading blocktable\n", filename);
break;
default:
printf("Error opening archive '%s': Unknown error\n", filename);
break;
}
return;
}
gOpenArchives.push_front(this);
}
void MPQArchive::close()
{
//gOpenArchives.erase(erase(&mpq_a);
libmpq_archive_close(&mpq_a);
}
MPQFile::MPQFile(const char* filename):
eof(false),
buffer(0),
pointer(0),
size(0)
{
for(ArchiveSet::iterator i=gOpenArchives.begin(); i!=gOpenArchives.end();++i)
{
mpq_archive &mpq_a = (*i)->mpq_a;
mpq_hash hash = (*i)->GetHashEntry(filename);
uint32 blockindex = hash.blockindex;
if ((blockindex == 0xFFFFFFFF) || (blockindex == 0)) {
continue; //file not found
}
uint32 fileno = blockindex;
//int fileno = libmpq_file_number(&mpq_a, filename);
//if(fileno == LIBMPQ_EFILE_NOT_FOUND)
// continue;
// Found!
size = libmpq_file_info(&mpq_a, LIBMPQ_FILE_UNCOMPRESSED_SIZE, fileno);
// HACK: in patch.mpq some files don't want to open and give 1 for filesize
if (size<=1) {
eof = true;
buffer = 0;
return;
}
buffer = new char[size];
//libmpq_file_getdata
libmpq_file_getdata(&mpq_a, hash, fileno, (unsigned char*)buffer);
return;
}
eof = true;
buffer = 0;
}
size_t MPQFile::read(void* dest, size_t bytes)
{
if (eof) return 0;
size_t rpos = pointer + bytes;
if (rpos > size) {
bytes = size - pointer;
eof = true;
}
memcpy(dest, &(buffer[pointer]), bytes);
pointer = rpos;
return bytes;
}
void MPQFile::seek(int offset)
{
pointer = offset;
eof = (pointer >= size);
}
void MPQFile::seekRelative(int offset)
{
pointer += offset;
eof = (pointer >= size);
}
void MPQFile::close()
{
if (buffer) delete[] buffer;
buffer = 0;
eof = true;
}
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