mirror of https://github.com/PCSX2/pcsx2.git
733 lines
17 KiB
C
733 lines
17 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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//#include <zlib.h>
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#define __MSCW32__
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#ifdef __WIN32__
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#include <windows.h>
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#endif
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#include "PS2Etypes.h"
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//#include "CDVDiso.h"
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#include "libiso.h"
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/* some structs from libcdvd by Hiryu & Sjeep (C) 2002 */
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#if defined(__WIN32__)
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#pragma pack(1)
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#endif
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struct rootDirTocHeader
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{
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u16 length; //+00
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u32 tocLBA; //+02
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u32 tocLBA_bigend; //+06
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u32 tocSize; //+0A
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u32 tocSize_bigend; //+0E
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u8 dateStamp[8]; //+12
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u8 reserved[6]; //+1A
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u8 reserved2; //+20
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u8 reserved3; //+21
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#if defined(__WIN32__)
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}; //+22
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#else
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} __attribute__((packed));
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#endif
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struct asciiDate
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{
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char year[4];
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char month[2];
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char day[2];
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char hours[2];
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char minutes[2];
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char seconds[2];
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char hundreths[2];
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char terminator[1];
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#if defined(__WIN32__)
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};
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#else
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} __attribute__((packed));
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#endif
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struct cdVolDesc
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{
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u8 filesystemType; // 0x01 = ISO9660, 0x02 = Joliet, 0xFF = NULL
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u8 volID[5]; // "CD001"
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u8 reserved2;
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u8 reserved3;
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u8 sysIdName[32];
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u8 volName[32]; // The ISO9660 Volume Name
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u8 reserved5[8];
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u32 volSize; // Volume Size
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u32 volSizeBig; // Volume Size Big-Endian
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u8 reserved6[32];
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u32 unknown1;
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u32 unknown1_bigend;
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u16 volDescSize; //+80
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u16 volDescSize_bigend; //+82
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u32 unknown3; //+84
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u32 unknown3_bigend; //+88
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u32 priDirTableLBA; // LBA of Primary Dir Table //+8C
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u32 reserved7; //+90
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u32 secDirTableLBA; // LBA of Secondary Dir Table //+94
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u32 reserved8; //+98
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struct rootDirTocHeader rootToc;
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u8 volSetName[128];
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u8 publisherName[128];
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u8 preparerName[128];
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u8 applicationName[128];
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u8 copyrightFileName[37];
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u8 abstractFileName[37];
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u8 bibliographyFileName[37];
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struct asciiDate creationDate;
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struct asciiDate modificationDate;
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struct asciiDate effectiveDate;
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struct asciiDate expirationDate;
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u8 reserved10;
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u8 reserved11[1166];
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#if defined(__WIN32__)
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};
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#else
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} __attribute__((packed));
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#endif
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#ifdef __WIN32__
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void *_openfile(const char *filename, int flags) {
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HANDLE handle;
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// printf("_openfile %s, %d\n", filename, flags & O_RDONLY);
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if (flags & O_WRONLY) {
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int _flags = CREATE_NEW;
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if (flags & O_CREAT) _flags = CREATE_ALWAYS;
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handle = CreateFile(filename, GENERIC_WRITE, 0, NULL, _flags, 0, NULL);
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} else {
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handle = CreateFile(filename, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
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}
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return handle == INVALID_HANDLE_VALUE ? NULL : handle;
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}
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u64 _tellfile(void *handle) {
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u64 ofs;
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DWORD *_ofs = (DWORD*)&ofs;
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_ofs[1] = 0;
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_ofs[0] = SetFilePointer(handle, 0, &_ofs[1], FILE_CURRENT);
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return ofs;
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}
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int _seekfile(void *handle, u64 offset, int whence) {
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u64 ofs = (u64)offset;
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DWORD *_ofs = (DWORD*)&ofs;
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// printf("_seekfile %p, %d_%d\n", handle, _ofs[1], _ofs[0]);
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if (whence == SEEK_SET) {
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SetFilePointer(handle, _ofs[0], &_ofs[1], FILE_BEGIN);
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} else {
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SetFilePointer(handle, _ofs[0], &_ofs[1], FILE_END);
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}
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return 0;
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}
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int _readfile(void *handle, void *dst, int size) {
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DWORD ret;
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// printf("_readfile %p %d\n", handle, size);
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ReadFile(handle, dst, size, &ret, NULL);
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// printf("_readfile ret %d; %d\n", ret, GetLastError());
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return ret;
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}
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int _writefile(void *handle, void *src, int size) {
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DWORD ret;
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// printf("_writefile %p, %d\n", handle, size);
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// _seekfile(handle, _tellfile(handle));
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WriteFile(handle, src, size, &ret, NULL);
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// printf("_writefile ret %d\n", ret);
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return ret;
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}
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void _closefile(void *handle) {
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CloseHandle(handle);
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}
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#else
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void *_openfile(const char *filename, int flags) {
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printf("_openfile %s %x\n", filename, flags);
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if (flags & O_WRONLY)
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return fopen(filename, "wb");
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else return fopen(filename, "rb");
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}
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u64 _tellfile(void *handle) {
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return ftell(handle);
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}
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int _seekfile(void *handle, u64 offset, int whence) {
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return fseek(handle, offset, whence);
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}
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int _readfile(void *handle, void *dst, int size) {
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return fread(dst, 1, size, handle);
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}
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int _writefile(void *handle, void *src, int size) {
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return fwrite(src, 1, size, handle);
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}
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void _closefile(void *handle) {
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fclose(handle);
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}
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#endif
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int detect(isoFile *iso) {
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char buf[2448];
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struct cdVolDesc *volDesc;
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if (isoReadBlock(iso, buf, 16) == -1) return -1;
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volDesc = (struct cdVolDesc *)(buf + 24);
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if (strncmp(volDesc->volID, "CD001", 5)) return 0;
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if (volDesc->rootToc.tocSize == 2048) {
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iso->type = ISOTYPE_CD;
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} else {
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iso->type = ISOTYPE_DVD;
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}
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return 1;
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}
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int _isoReadZtable(isoFile *iso) {
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void *handle;
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char table[256];
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int size;
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sprintf(table, "%s.table", iso->filename);
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handle = _openfile(table, O_RDONLY);
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if (handle == NULL) {
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printf("Error loading %s\n", table);
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return -1;
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}
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_seekfile(handle, 0, SEEK_END);
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size = (int)_tellfile(handle);
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iso->Ztable = (char*)malloc(size);
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if (iso->Ztable == NULL) {
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return -1;
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}
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_seekfile(handle, 0, SEEK_SET);
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_readfile(handle, iso->Ztable, size);
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_closefile(handle);
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iso->blocks = size / 6;
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return 0;
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}
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int _isoReadZ2table(isoFile *iso) {
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void *handle;
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char table[256];
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u32 *Ztable;
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int ofs;
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int size;
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int i;
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sprintf(table, "%s.table", iso->filename);
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handle = _openfile(table, O_RDONLY);
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if (handle == NULL) {
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printf("Error loading %s\n", table);
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return -1;
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}
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_seekfile(handle, 0, SEEK_END);
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size = (int)_tellfile(handle);
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Ztable = (u32*)malloc(size);
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if (Ztable == NULL) {
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return -1;
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}
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_seekfile(handle, 0, SEEK_SET);
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_readfile(handle, Ztable, size);
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_closefile(handle);
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iso->Ztable = (char*)malloc(iso->blocks*8);
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if (iso->Ztable == NULL) {
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return -1;
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}
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ofs=16;
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for (i=0; i<iso->blocks; i++) {
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*(u32*)&iso->Ztable[i*8+0] = ofs;
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*(u32*)&iso->Ztable[i*8+4] = Ztable[i];
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ofs+= Ztable[i];
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}
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free(Ztable);
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return 0;
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}
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int _isoReadDtable(isoFile *iso) {
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int ret;
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int i;
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_seekfile(iso->handle, 0, SEEK_END);
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iso->dtablesize = (int)(_tellfile(iso->handle) - 16) / (iso->blocksize+4);
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iso->dtable = (u32*)malloc(iso->dtablesize*4);
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for (i=0; i<iso->dtablesize; i++) {
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_seekfile(iso->handle, 16+(iso->blocksize+4)*i, SEEK_SET);
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ret = _readfile(iso->handle, &iso->dtable[i], 4);
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if (ret < 4) {
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return -1;
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}
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}
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return 0;
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}
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int isoDetect(isoFile *iso) { // based on florin's CDVDbin detection code :)
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char buf[32];
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int len;
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iso->type = ISOTYPE_ILLEGAL;
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len = strlen(iso->filename);
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if (len >= 2) {
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if (!strncmp(iso->filename+(len-2), ".Z", 2)) {
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iso->flags = ISOFLAGS_Z;
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iso->blocksize = 2352;
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_isoReadZtable(iso);
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return detect(iso) == 1 ? 0 : -1;
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}
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}
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_seekfile(iso->handle, 0, SEEK_SET);
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_readfile(iso->handle, buf, 4);
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if (strncmp(buf, "BDV2", 4) == 0) {
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iso->flags = ISOFLAGS_BLOCKDUMP;
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_readfile(iso->handle, &iso->blocksize, 4);
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_readfile(iso->handle, &iso->blocks, 4);
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_readfile(iso->handle, &iso->blockofs, 4);
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_isoReadDtable(iso);
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return detect(iso) == 1 ? 0 : -1;
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} else
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if (strncmp(buf, "Z V2", 4) == 0) {
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iso->flags = ISOFLAGS_Z2;
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_readfile(iso->handle, &iso->blocksize, 4);
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_readfile(iso->handle, &iso->blocks, 4);
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_readfile(iso->handle, &iso->blockofs, 4);
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_isoReadZ2table(iso);
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return detect(iso) == 1 ? 0 : -1;
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} else {
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iso->blocks = 16;
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}
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// ISO 2048
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iso->blocksize = 2048; iso->offset = 0; iso->blockofs = 24;
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if (detect(iso) == 1) return 0;
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// RAW 2336
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iso->blocksize = 2336; iso->offset = 0; iso->blockofs = 16;
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if (detect(iso) == 1) return 0;
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// RAW 2352
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iso->blocksize = 2352; iso->offset = 0; iso->blockofs = 0;
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if (detect(iso) == 1) return 0;
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// RAWQ 2448
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iso->blocksize = 2448; iso->offset = 0; iso->blockofs = 0;
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if (detect(iso) == 1) return 0;
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// NERO ISO 2048
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iso->blocksize = 2048; iso->offset = 150*2048; iso->blockofs = 24;
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if (detect(iso) == 1) return 0;
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// NERO RAW 2352
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iso->blocksize = 2352; iso->offset = 150*2048; iso->blockofs = 0;
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if (detect(iso) == 1) return 0;
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// NERO RAWQ 2448
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iso->blocksize = 2448; iso->offset = 150*2048; iso->blockofs = 0;
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if (detect(iso) == 1) return 0;
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// ISO 2048
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iso->blocksize = 2048; iso->offset = -8; iso->blockofs = 24;
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if (detect(iso) == 1) return 0;
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// RAW 2352
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iso->blocksize = 2352; iso->offset = -8; iso->blockofs = 0;
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if (detect(iso) == 1) return 0;
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// RAWQ 2448
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iso->blocksize = 2448; iso->offset = -8; iso->blockofs = 0;
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if (detect(iso) == 1) return 0;
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iso->offset = 0;
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iso->blocksize = 2352;
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iso->type = ISOTYPE_AUDIO;
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return 0;
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return -1;
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}
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isoFile *isoOpen(const char *filename) {
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isoFile *iso;
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iso = (isoFile*)malloc(sizeof(isoFile));
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if (iso == NULL) return NULL;
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memset(iso, 0, sizeof(isoFile));
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strcpy(iso->filename, filename);
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iso->handle = _openfile(iso->filename, O_RDONLY);
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if (iso->handle == NULL) {
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printf("Error loading %s\n", iso->filename);
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return NULL;
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}
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if (isoDetect(iso) == -1) return NULL;
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if (iso->flags & (ISOFLAGS_Z | ISOFLAGS_Z2 | ISOFLAGS_BLOCKDUMP)) {
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} else {
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_seekfile(iso->handle, 0, SEEK_END);
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iso->blocks = (u32)((_tellfile(iso->handle) - iso->offset) /
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(iso->blocksize));
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}
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/*
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if (strlen(IsoFile) > 3 &&
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!strncmp(IsoFile + (strlen(IsoFile) - 3), "I00", 3)) {
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int i;
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int llsn=0;
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for (i=0; i<8; i++) {
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IsoFile[strlen(IsoFile) - 1] = '0' + i;
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if (stat(IsoFile, &buf) == -1) break;
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cdIndexs[i].slsn = llsn;
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llsn+= buf.st_size / cdblocksize;
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cdIndexs[i].elsn = llsn-1;
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cdHandle[i] = fopen(IsoFile, "rb");
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if (cdHandle[i] == NULL) break;
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}
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if (i == 0) {
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SysMessage("Error loading %s\n", IsoFile);
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return -1;
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}
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fmode = 3;
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} else*//* {
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iso->handle = _openfile(iso->filename, O_RDONLY);
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if (iso->handle == NULL) {
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printf("Error loading %s\n", iso->filename);
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return NULL;
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}
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}*/
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printf("isoOpen: %s ok\n", iso->filename);
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printf("offset = %d\n", iso->offset);
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printf("blockofs = %d\n", iso->blockofs);
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printf("blocksize = %d\n", iso->blocksize);
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printf("blocks = %d\n", iso->blocks);
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printf("type = %d\n", iso->type);
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return iso;
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}
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isoFile *isoCreate(const char *filename, int flags) {
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isoFile *iso;
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char Zfile[256];
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iso = (isoFile*)malloc(sizeof(isoFile));
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if (iso == NULL) return NULL;
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memset(iso, 0, sizeof(isoFile));
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strcpy(iso->filename, filename);
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iso->flags = flags;
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iso->offset = 0;
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iso->blockofs = 24;
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iso->blocksize = CD_FRAMESIZE_RAW;
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iso->blocksize = 2048;
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if (iso->flags & (ISOFLAGS_Z | ISOFLAGS_Z2)) {
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sprintf(Zfile, "%s.table", iso->filename);
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iso->htable = _openfile(Zfile, O_WRONLY);
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if (iso->htable == NULL) {
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return NULL;
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}
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}
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iso->handle = _openfile(iso->filename, O_WRONLY);
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if (iso->handle == NULL) {
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printf("Error loading %s\n", iso->filename);
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return NULL;
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}
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printf("isoCreate: %s ok\n", iso->filename);
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printf("offset = %d\n", iso->offset);
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return iso;
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}
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int isoSetFormat(isoFile *iso, int blockofs, int blocksize, int blocks) {
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iso->blocksize = blocksize;
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iso->blocks = blocks;
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iso->blockofs = blockofs;
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printf("blockofs = %d\n", iso->blockofs);
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printf("blocksize = %d\n", iso->blocksize);
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printf("blocks = %d\n", iso->blocks);
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if (iso->flags & ISOFLAGS_Z2) {
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if (_writefile(iso->handle, "Z V2", 4) < 4) return -1;
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if (_writefile(iso->handle, &blocksize, 4) < 4) return -1;
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if (_writefile(iso->handle, &blocks, 4) < 4) return -1;
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if (_writefile(iso->handle, &blockofs, 4) < 4) return -1;
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}
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if (iso->flags & ISOFLAGS_BLOCKDUMP) {
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if (_writefile(iso->handle, "BDV2", 4) < 4) return -1;
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if (_writefile(iso->handle, &blocksize, 4) < 4) return -1;
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if (_writefile(iso->handle, &blocks, 4) < 4) return -1;
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if (_writefile(iso->handle, &blockofs, 4) < 4) return -1;
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}
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return 0;
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}
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s32 MSFtoLSN(u8 *Time) {
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u32 lsn;
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lsn = Time[2];
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lsn+=(Time[1] - 2) * 75;
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lsn+= Time[0] * 75 * 60;
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return lsn;
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}
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void LSNtoMSF(u8 *Time, s32 lsn) {
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u8 m, s, f;
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lsn += 150;
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m = lsn / 4500; // minuten
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lsn = lsn - m * 4500; // minuten rest
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s = lsn / 75; // sekunden
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f = lsn - (s * 75); // sekunden rest
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Time[0] = itob(m); Time[1] = itob(s); Time[2] = itob(f);
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}
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int _isoReadBlock(isoFile *iso, char *dst, int lsn) {
|
|
u64 ofs = (u64)lsn * iso->blocksize + iso->offset;
|
|
int ret;
|
|
|
|
// printf("_isoReadBlock %d, blocksize=%d, blockofs=%d\n", lsn, iso->blocksize, iso->blockofs);
|
|
memset(dst, 0, iso->blockofs);
|
|
_seekfile(iso->handle, ofs, SEEK_SET);
|
|
ret = _readfile(iso->handle, dst + iso->blockofs, iso->blocksize);
|
|
if (ret < iso->blocksize) {
|
|
printf("read error %d\n", ret);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
int _isoReadBlockZ(isoFile *iso, char *dst, int lsn) {
|
|
u32 pos, p;
|
|
uLongf size;
|
|
u8 Zbuf[CD_FRAMESIZE_RAW*2];
|
|
int ret;
|
|
|
|
// printf("_isoReadBlockZ %d, %d\n", lsn, iso->blocksize);
|
|
pos = *(unsigned long*)&iso->Ztable[lsn * 6];
|
|
p = *(unsigned short*)&iso->Ztable[lsn * 6 + 4];
|
|
// printf("%d, %d\n", pos, p);
|
|
_seekfile(iso->handle, pos, SEEK_SET);
|
|
ret = _readfile(iso->handle, Zbuf, p);
|
|
if (ret < p) {
|
|
printf("error reading block!!\n");
|
|
return -1;
|
|
}
|
|
|
|
size = CD_FRAMESIZE_RAW;
|
|
uncompress(dst, &size, Zbuf, p);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int _isoReadBlockZ2(isoFile *iso, char *dst, int lsn) {
|
|
u32 pos, p;
|
|
uLongf size;
|
|
u8 Zbuf[16*1024];
|
|
int ret;
|
|
|
|
// printf("_isoReadBlockZ2 %d, %d\n", lsn, iso->blocksize);
|
|
pos = *(u32*)&iso->Ztable[lsn*8];
|
|
p = *(u32*)&iso->Ztable[lsn*8+4];
|
|
// printf("%d, %d\n", pos, p);
|
|
_seekfile(iso->handle, pos, SEEK_SET);
|
|
ret = _readfile(iso->handle, Zbuf, p);
|
|
if (ret < p) {
|
|
printf("error reading block!!\n");
|
|
return -1;
|
|
}
|
|
|
|
size = iso->blocksize;
|
|
uncompress(dst + iso->blockofs, &size, Zbuf, p);
|
|
|
|
return 0;
|
|
}
|
|
*/
|
|
int _isoReadBlockD(isoFile *iso, char *dst, int lsn) {
|
|
int ret;
|
|
int i;
|
|
|
|
// printf("_isoReadBlockD %d, blocksize=%d, blockofs=%d\n", lsn, iso->blocksize, iso->blockofs);
|
|
memset(dst, 0, iso->blockofs);
|
|
for (i=0; i<iso->dtablesize;i++) {
|
|
if (iso->dtable[i] != lsn) continue;
|
|
|
|
_seekfile(iso->handle, 16+i*(iso->blocksize+4)+4, SEEK_SET);
|
|
ret = _readfile(iso->handle, dst + iso->blockofs, iso->blocksize);
|
|
if (ret < iso->blocksize) return -1;
|
|
|
|
return 0;
|
|
}
|
|
printf("block %d not found in dump\n", lsn);
|
|
|
|
return -1;
|
|
}
|
|
|
|
int isoReadBlock(isoFile *iso, char *dst, int lsn) {
|
|
int ret;
|
|
|
|
if (lsn > iso->blocks) {
|
|
printf("isoReadBlock: %d > %d\n", lsn, iso->blocks);
|
|
return -1;
|
|
}
|
|
/* if (iso->flags & ISOFLAGS_Z) {
|
|
ret = _isoReadBlockZ(iso, dst, lsn);
|
|
} else
|
|
if (iso->flags & ISOFLAGS_Z2) {
|
|
ret = _isoReadBlockZ2(iso, dst, lsn);
|
|
} else
|
|
*/ if (iso->flags & ISOFLAGS_BLOCKDUMP) {
|
|
ret = _isoReadBlockD(iso, dst, lsn);
|
|
} else
|
|
ret = _isoReadBlock(iso, dst, lsn);
|
|
if (ret == -1) return ret;
|
|
|
|
if (iso->type == ISOTYPE_CD) {
|
|
LSNtoMSF(dst+12, lsn);
|
|
dst[15] = 2;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int _isoWriteBlock(isoFile *iso, u8 *src, int lsn) {
|
|
u64 ofs = (u64)lsn * iso->blocksize + iso->offset;
|
|
int ret;
|
|
|
|
// printf("_isoWriteBlock %d (ofs=%d)\n", iso->blocksize, ofs);
|
|
_seekfile(iso->handle, ofs, SEEK_SET);
|
|
ret = _writefile(iso->handle, src + iso->blockofs, iso->blocksize);
|
|
// printf("_isoWriteBlock %d\n", ret);
|
|
if (ret < iso->blocksize) return -1;
|
|
|
|
return 0;
|
|
}
|
|
/*
|
|
int _isoWriteBlockZ(isoFile *iso, u8 *src, int lsn) {
|
|
u32 pos;
|
|
uLongf size;
|
|
u8 Zbuf[CD_FRAMESIZE_RAW];
|
|
int ret;
|
|
|
|
// printf("_isoWriteBlockZ %d\n", iso->blocksize);
|
|
size = 2352;
|
|
compress(Zbuf, &size, src, 2352);
|
|
// printf("_isoWriteBlockZ %d\n", size);
|
|
|
|
pos = (u32)_tellfile(iso->handle);
|
|
ret = _writefile(iso->htable, (u8*)&pos, 4);
|
|
if (ret < 4) return -1;
|
|
ret = _writefile(iso->htable, (u8*)&size, 2);
|
|
if (ret < 2) return -1;
|
|
|
|
ret = _writefile(iso->handle, Zbuf, size);
|
|
// printf("_isoWriteBlockZ %d\n", ret);
|
|
if (ret < size) {
|
|
printf("error writing block!!\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int _isoWriteBlockZ2(isoFile *iso, u8 *src, int lsn) {
|
|
uLongf size;
|
|
u8 Zbuf[1024*16];
|
|
int ret;
|
|
|
|
// printf("_isoWriteBlockZ %d\n", iso->blocksize);
|
|
size = 1024*16;
|
|
compress(Zbuf, &size, src + iso->blockofs, iso->blocksize);
|
|
// printf("_isoWriteBlockZ %d\n", size);
|
|
|
|
ret = _writefile(iso->htable, (u8*)&size, 4);
|
|
if (ret < 4) return -1;
|
|
ret = _writefile(iso->handle, Zbuf, size);
|
|
// printf("_isoWriteBlockZ %d\n", ret);
|
|
if (ret < size) {
|
|
printf("error writing block!!\n");
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
*/
|
|
int _isoWriteBlockD(isoFile *iso, u8 *src, int lsn) {
|
|
int ret;
|
|
|
|
// printf("_isoWriteBlock %d (ofs=%d)\n", iso->blocksize, ofs);
|
|
ret = _writefile(iso->handle, &lsn, 4);
|
|
if (ret < 4) return -1;
|
|
ret = _writefile(iso->handle, src + iso->blockofs, iso->blocksize);
|
|
// printf("_isoWriteBlock %d\n", ret);
|
|
if (ret < iso->blocksize) return -1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
int isoWriteBlock(isoFile *iso, char *src, int lsn) {
|
|
int ret;
|
|
|
|
/* if (iso->flags & ISOFLAGS_Z) {
|
|
ret = _isoWriteBlockZ(iso, src, lsn);
|
|
} else
|
|
if (iso->flags & ISOFLAGS_Z2) {
|
|
ret = _isoWriteBlockZ2(iso, src, lsn);
|
|
} else
|
|
*/ if (iso->flags & ISOFLAGS_BLOCKDUMP) {
|
|
ret = _isoWriteBlockD(iso, src, lsn);
|
|
} else
|
|
ret = _isoWriteBlock(iso, src, lsn);
|
|
if (ret == -1) return ret;
|
|
|
|
return 0;
|
|
}
|
|
|
|
void isoClose(isoFile *iso) {
|
|
if (iso->handle) {
|
|
_closefile(iso->handle);
|
|
}
|
|
if (iso->htable) {
|
|
_closefile(iso->htable);
|
|
}
|
|
free(iso);
|
|
}
|
|
|