ffc2a08589
Added version+time+date to segfault lots. try to use vbo+vao as needed. added a manifest file in order to disable uac emulation and its virtual store lies. particles now support a sort of namespace. eg: an effect called "cfg.effect" will load up the 'cfg' particle config and use its 'effect' effect (but not replace any explicit effects). You can still create particle effects called 'cfg.effect' with no issue. Added support for fsarchive plugins. Added a sys_register_file_associations command. .bsp not yet handled, but demo playback should work fine. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4324 fc73d0e0-1445-4013-8a0c-d673dee63da5
711 lines
16 KiB
C
711 lines
16 KiB
C
#include "quakedef.h"
|
|
#include "fs.h"
|
|
|
|
#ifdef AVAIL_ZLIB
|
|
|
|
#ifndef ZEXPORT
|
|
#define ZEXPORT VARGS
|
|
#endif
|
|
#include <zlib.h>
|
|
|
|
typedef struct {
|
|
unsigned char ident1;
|
|
unsigned char ident2;
|
|
unsigned char cm;
|
|
unsigned char flags;
|
|
unsigned int mtime;
|
|
unsigned char xflags;
|
|
unsigned char os;
|
|
} gzheader_t;
|
|
#define sizeofgzheader_t 10
|
|
|
|
#define GZ_FTEXT 1
|
|
#define GZ_FHCRC 2
|
|
#define GZ_FEXTRA 4
|
|
#define GZ_FNAME 8
|
|
#define GZ_FCOMMENT 16
|
|
#define GZ_RESERVED (32|64|128)
|
|
|
|
#ifdef DYNAMIC_ZLIB
|
|
#define ZLIB_LOADED() (zlib_handle!=NULL)
|
|
void *zlib_handle;
|
|
#define ZSTATIC(n)
|
|
#else
|
|
#define ZLIB_LOADED() 1
|
|
#define ZSTATIC(n) = &n
|
|
|
|
#ifdef _MSC_VER
|
|
# ifdef _WIN64
|
|
# pragma comment(lib, MSVCLIBSPATH "zlib64.lib")
|
|
# else
|
|
# pragma comment(lib, MSVCLIBSPATH "zlib.lib")
|
|
# endif
|
|
#endif
|
|
#endif
|
|
|
|
//#pragma comment(lib, MSVCLIBSPATH "zlib.lib")
|
|
|
|
static int (ZEXPORT *qinflateEnd) (z_streamp strm) ZSTATIC(inflateEnd);
|
|
static int (ZEXPORT *qinflate) (z_streamp strm, int flush) ZSTATIC(inflate);
|
|
static int (ZEXPORT *qinflateInit2_) (z_streamp strm, int windowBits,
|
|
const char *version, int stream_size) ZSTATIC(inflateInit2_);
|
|
static uLong (ZEXPORT *qcrc32) (uLong crc, const Bytef *buf, uInt len) ZSTATIC(crc32);
|
|
|
|
#define qinflateInit2(strm, windowBits) \
|
|
qinflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
|
|
|
|
qboolean LibZ_Init(void)
|
|
{
|
|
#ifdef DYNAMIC_ZLIB
|
|
static dllfunction_t funcs[] =
|
|
{
|
|
{(void*)&qinflateEnd, "inflateEnd"},
|
|
{(void*)&qinflate, "inflate"},
|
|
{(void*)&qinflateInit2_, "inflateInit2_"},
|
|
{(void*)&qcrc32, "crc32"},
|
|
{NULL, NULL}
|
|
};
|
|
if (!ZLIB_LOADED())
|
|
zlib_handle = Sys_LoadLibrary("zlib1", funcs);
|
|
#endif
|
|
return ZLIB_LOADED();
|
|
}
|
|
|
|
vfsfile_t *FS_DecompressGZip(vfsfile_t *infile)
|
|
{
|
|
char inchar;
|
|
unsigned short inshort;
|
|
vfsfile_t *temp;
|
|
gzheader_t header;
|
|
|
|
if (VFS_READ(infile, &header, sizeofgzheader_t) == sizeofgzheader_t)
|
|
{
|
|
if (header.ident1 != 0x1f || header.ident2 != 0x8b || header.cm != 8 || header.flags & GZ_RESERVED)
|
|
{
|
|
VFS_SEEK(infile, 0);
|
|
return infile;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
VFS_SEEK(infile, 0);
|
|
return infile;
|
|
}
|
|
if (header.flags & GZ_FEXTRA)
|
|
{
|
|
VFS_READ(infile, &inshort, sizeof(inshort));
|
|
inshort = LittleShort(inshort);
|
|
VFS_SEEK(infile, VFS_TELL(infile) + inshort);
|
|
}
|
|
|
|
if (header.flags & GZ_FNAME)
|
|
{
|
|
Con_Printf("gzipped file name: ");
|
|
do {
|
|
if (VFS_READ(infile, &inchar, sizeof(inchar)) != 1)
|
|
break;
|
|
Con_Printf("%c", inchar);
|
|
} while(inchar);
|
|
Con_Printf("\n");
|
|
}
|
|
|
|
if (header.flags & GZ_FCOMMENT)
|
|
{
|
|
Con_Printf("gzipped file comment: ");
|
|
do {
|
|
if (VFS_READ(infile, &inchar, sizeof(inchar)) != 1)
|
|
break;
|
|
Con_Printf("%c", inchar);
|
|
} while(inchar);
|
|
Con_Printf("\n");
|
|
}
|
|
|
|
if (header.flags & GZ_FHCRC)
|
|
{
|
|
VFS_READ(infile, &inshort, sizeof(inshort));
|
|
}
|
|
|
|
|
|
|
|
temp = FS_OpenTemp();
|
|
if (!temp)
|
|
{
|
|
VFS_SEEK(infile, 0); //doh
|
|
return infile;
|
|
}
|
|
|
|
|
|
{
|
|
unsigned char inbuffer[16384];
|
|
unsigned char outbuffer[16384];
|
|
int ret;
|
|
|
|
z_stream strm = {
|
|
inbuffer,
|
|
0,
|
|
0,
|
|
|
|
outbuffer,
|
|
sizeof(outbuffer),
|
|
0,
|
|
|
|
NULL,
|
|
NULL,
|
|
|
|
NULL,
|
|
NULL,
|
|
NULL,
|
|
|
|
Z_UNKNOWN,
|
|
0,
|
|
0
|
|
};
|
|
|
|
strm.avail_in = VFS_READ(infile, inbuffer, sizeof(inbuffer));
|
|
strm.next_in = inbuffer;
|
|
|
|
qinflateInit2(&strm, -MAX_WBITS);
|
|
|
|
while ((ret=qinflate(&strm, Z_SYNC_FLUSH)) != Z_STREAM_END)
|
|
{
|
|
if (strm.avail_in == 0 || strm.avail_out == 0)
|
|
{
|
|
if (strm.avail_in == 0)
|
|
{
|
|
strm.avail_in = VFS_READ(infile, inbuffer, sizeof(inbuffer));
|
|
strm.next_in = inbuffer;
|
|
if (!strm.avail_in)
|
|
break;
|
|
}
|
|
|
|
if (strm.avail_out == 0)
|
|
{
|
|
strm.next_out = outbuffer;
|
|
VFS_WRITE(temp, outbuffer, strm.total_out);
|
|
strm.total_out = 0;
|
|
strm.avail_out = sizeof(outbuffer);
|
|
}
|
|
continue;
|
|
}
|
|
|
|
//doh, it terminated for no reason
|
|
if (ret != Z_STREAM_END)
|
|
{
|
|
qinflateEnd(&strm);
|
|
Con_Printf("Couldn't decompress gz file\n");
|
|
VFS_CLOSE(temp);
|
|
VFS_CLOSE(infile);
|
|
return NULL;
|
|
}
|
|
}
|
|
//we got to the end
|
|
VFS_WRITE(temp, outbuffer, strm.total_out);
|
|
|
|
qinflateEnd(&strm);
|
|
|
|
VFS_SEEK(temp, 0);
|
|
}
|
|
VFS_CLOSE(infile);
|
|
|
|
return temp;
|
|
}
|
|
|
|
#include "unzip.c"
|
|
|
|
typedef struct
|
|
{
|
|
fsbucket_t bucket;
|
|
char name[MAX_QPATH];
|
|
int filepos, filelen;
|
|
} zpackfile_t;
|
|
|
|
|
|
typedef struct zipfile_s
|
|
{
|
|
char filename[MAX_OSPATH];
|
|
unzFile handle;
|
|
int numfiles;
|
|
zpackfile_t *files;
|
|
|
|
#ifdef HASH_FILESYSTEM
|
|
hashtable_t hash;
|
|
#endif
|
|
|
|
vfsfile_t *raw;
|
|
vfsfile_t *currentfile; //our unzip.c can only handle one active file at any one time
|
|
//so we have to keep closing and switching.
|
|
//slow, but it works. most of the time we'll only have a single file open anyway.
|
|
int references; //and a reference count
|
|
} zipfile_t;
|
|
|
|
|
|
static void QDECL FSZIP_GetDisplayPath(void *handle, char *out, unsigned int outlen)
|
|
{
|
|
zipfile_t *zip = handle;
|
|
|
|
if (zip->references != 1)
|
|
Q_snprintfz(out, outlen, "%s (%i)\n", zip->filename, zip->references-1);
|
|
else
|
|
Q_strncpyz(out, zip->filename, outlen);
|
|
}
|
|
static void QDECL FSZIP_ClosePath(void *handle)
|
|
{
|
|
zipfile_t *zip = handle;
|
|
|
|
if (--zip->references > 0)
|
|
return; //not yet time
|
|
|
|
unzClose(zip->handle);
|
|
if (zip->files)
|
|
Z_Free(zip->files);
|
|
Z_Free(zip);
|
|
}
|
|
static void QDECL FSZIP_BuildHash(void *handle, int depth, void (QDECL *AddFileHash)(int depth, const char *fname, fsbucket_t *filehandle, void *pathhandle))
|
|
{
|
|
zipfile_t *zip = handle;
|
|
int i;
|
|
|
|
for (i = 0; i < zip->numfiles; i++)
|
|
{
|
|
AddFileHash(depth, zip->files[i].name, &zip->files[i].bucket, &zip->files[i]);
|
|
}
|
|
}
|
|
static qboolean QDECL FSZIP_FLocate(void *handle, flocation_t *loc, const char *filename, void *hashedresult)
|
|
{
|
|
zpackfile_t *pf = hashedresult;
|
|
int i, len;
|
|
zipfile_t *zip = handle;
|
|
|
|
// look through all the pak file elements
|
|
|
|
if (pf)
|
|
{ //is this a pointer to a file in this pak?
|
|
if (pf < zip->files || pf >= zip->files + zip->numfiles)
|
|
return false; //was found in a different path
|
|
}
|
|
else
|
|
{
|
|
for (i=0 ; i<zip->numfiles ; i++) //look for the file
|
|
{
|
|
if (!stricmp (zip->files[i].name, filename))
|
|
{
|
|
pf = &zip->files[i];
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (pf)
|
|
{
|
|
len = pf->filelen;
|
|
if (loc)
|
|
{
|
|
loc->index = pf - zip->files;
|
|
strcpy(loc->rawname, zip->filename);
|
|
loc->offset = pf->filepos;
|
|
loc->len = pf->filelen;
|
|
|
|
unzLocateFileMy (zip->handle, loc->index, zip->files[loc->index].filepos);
|
|
loc->offset = unzGetCurrentFileUncompressedPos(zip->handle);
|
|
// if (loc->offset<0)
|
|
// { //file not found, or is compressed.
|
|
// *loc->rawname = '\0';
|
|
// loc->offset=0;
|
|
// }
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
static void QDECL FSZIP_ReadFile(void *handle, flocation_t *loc, char *buffer)
|
|
{
|
|
zipfile_t *zip = handle;
|
|
int err;
|
|
|
|
unzLocateFileMy (zip->handle, loc->index, zip->files[loc->index].filepos);
|
|
|
|
unzOpenCurrentFile (zip->handle);
|
|
err = unzReadCurrentFile (zip->handle, buffer, zip->files[loc->index].filelen);
|
|
unzCloseCurrentFile (zip->handle);
|
|
|
|
if (err!=zip->files[loc->index].filelen)
|
|
{
|
|
Con_Printf ("Can't extract file \"%s:%s\" (corrupt)\n", zip->filename, zip->files[loc->index].name);
|
|
return;
|
|
}
|
|
return;
|
|
}
|
|
|
|
static int QDECL FSZIP_EnumerateFiles (void *handle, const char *match, int (QDECL *func)(const char *, int, void *, void *spath), void *parm)
|
|
{
|
|
zipfile_t *zip = handle;
|
|
int num;
|
|
|
|
for (num = 0; num<(int)zip->numfiles; num++)
|
|
{
|
|
if (wildcmp(match, zip->files[num].name))
|
|
{
|
|
if (!func(zip->files[num].name, zip->files[num].filelen, parm, handle))
|
|
return false;
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
=================
|
|
COM_LoadZipFile
|
|
|
|
Takes an explicit (not game tree related) path to a pak file.
|
|
|
|
Loads the header and directory, adding the files at the beginning
|
|
of the list so they override previous pack files.
|
|
=================
|
|
*/
|
|
static void *QDECL FSZIP_LoadZipFile (vfsfile_t *packhandle, const char *desc)
|
|
{
|
|
int i;
|
|
int nextfileziphandle;
|
|
|
|
zipfile_t *zip;
|
|
zpackfile_t *newfiles;
|
|
|
|
unz_global_info globalinf = {0};
|
|
unz_file_info file_info;
|
|
|
|
zip = Z_Malloc(sizeof(zipfile_t));
|
|
Q_strncpyz(zip->filename, desc, sizeof(zip->filename));
|
|
zip->handle = unzOpen ((zip->raw = packhandle));
|
|
if (!zip->handle)
|
|
{
|
|
Z_Free(zip);
|
|
Con_TPrintf (TL_COULDNTOPENZIP, desc);
|
|
return NULL;
|
|
}
|
|
|
|
unzGetGlobalInfo (zip->handle, &globalinf);
|
|
|
|
zip->numfiles = globalinf.number_entry;
|
|
|
|
zip->files = newfiles = Z_Malloc (zip->numfiles * sizeof(zpackfile_t));
|
|
for (i = 0; i < zip->numfiles; i++)
|
|
{
|
|
if (unzGetCurrentFileInfo (zip->handle, &file_info, newfiles[i].name, sizeof(newfiles[i].name), NULL, 0, NULL, 0) != UNZ_OK)
|
|
Con_Printf("Zip Error\n");
|
|
Q_strlwr(newfiles[i].name);
|
|
if (!*newfiles[i].name || newfiles[i].name[strlen(newfiles[i].name)-1] == '/')
|
|
newfiles[i].filelen = -1;
|
|
else
|
|
newfiles[i].filelen = file_info.uncompressed_size;
|
|
newfiles[i].filepos = file_info.c_offset;
|
|
|
|
nextfileziphandle = unzGoToNextFile (zip->handle);
|
|
if (nextfileziphandle == UNZ_END_OF_LIST_OF_FILE)
|
|
break;
|
|
else if (nextfileziphandle != UNZ_OK)
|
|
Con_Printf("Zip Error\n");
|
|
}
|
|
|
|
zip->references = 1;
|
|
zip->currentfile = NULL;
|
|
|
|
Con_TPrintf (TL_ADDEDZIPFILE, desc, zip->numfiles);
|
|
return zip;
|
|
}
|
|
|
|
int QDECL FSZIP_GeneratePureCRC(void *handle, int seed, int crctype)
|
|
{
|
|
zipfile_t *zip = handle;
|
|
unz_file_info file_info;
|
|
|
|
int result;
|
|
int *filecrcs;
|
|
int numcrcs=0;
|
|
int i;
|
|
|
|
filecrcs = BZ_Malloc((zip->numfiles+1)*sizeof(int));
|
|
filecrcs[numcrcs++] = seed;
|
|
|
|
unzGoToFirstFile(zip->handle);
|
|
for (i = 0; i < zip->numfiles; i++)
|
|
{
|
|
if (zip->files[i].filelen>0)
|
|
{
|
|
unzGetCurrentFileInfo (zip->handle, &file_info, NULL, 0, NULL, 0, NULL, 0);
|
|
filecrcs[numcrcs++] = file_info.crc;
|
|
}
|
|
unzGoToNextFile (zip->handle);
|
|
}
|
|
|
|
if (crctype)
|
|
result = Com_BlockChecksum(filecrcs, numcrcs*sizeof(int));
|
|
else
|
|
result = Com_BlockChecksum(filecrcs+1, (numcrcs-1)*sizeof(int));
|
|
|
|
BZ_Free(filecrcs);
|
|
return result;
|
|
}
|
|
|
|
typedef struct {
|
|
vfsfile_t funcs;
|
|
|
|
vfsfile_t *defer;
|
|
|
|
//in case we're forced away.
|
|
zipfile_t *parent;
|
|
qboolean iscompressed;
|
|
int pos;
|
|
int length; //try and optimise some things
|
|
int index;
|
|
int startpos;
|
|
} vfszip_t;
|
|
qboolean VFSZIP_MakeActive(vfszip_t *vfsz)
|
|
{
|
|
int i;
|
|
char buffer[8192]; //must be power of two
|
|
|
|
if ((vfszip_t*)vfsz->parent->currentfile == vfsz)
|
|
return true; //already us
|
|
if (vfsz->parent->currentfile)
|
|
unzCloseCurrentFile(vfsz->parent->handle);
|
|
|
|
unzLocateFileMy(vfsz->parent->handle, vfsz->index, vfsz->startpos);
|
|
if (unzOpenCurrentFile(vfsz->parent->handle) == UNZ_BADZIPFILE)
|
|
{
|
|
unz_file_info file_info;
|
|
buffer[0] = '?';
|
|
buffer[1] = 0;
|
|
if (unzGetCurrentFileInfo (vfsz->parent->handle, &file_info, buffer, sizeof(buffer), NULL, 0, NULL, 0) != UNZ_OK)
|
|
Con_Printf("Zip Error\n");
|
|
if (file_info.compression_method && file_info.compression_method != Z_DEFLATED)
|
|
Con_Printf("unsupported compression method on %s/%s\n", vfsz->parent->filename, buffer);
|
|
else
|
|
Con_Printf("corrupt file within zip, %s/%s\n", vfsz->parent->filename, buffer);
|
|
vfsz->parent->currentfile = NULL;
|
|
return false;
|
|
}
|
|
|
|
|
|
if (vfsz->pos > 0)
|
|
{
|
|
Con_DPrintf("VFSZIP_MakeActive: Shockingly inefficient\n");
|
|
|
|
//now we need to seek up to where we had previously gotten to.
|
|
for (i = 0; i < vfsz->pos-sizeof(buffer); i++)
|
|
unzReadCurrentFile(vfsz->parent->handle, buffer, sizeof(buffer));
|
|
unzReadCurrentFile(vfsz->parent->handle, buffer, vfsz->pos - i);
|
|
}
|
|
|
|
vfsz->parent->currentfile = (vfsfile_t*)vfsz;
|
|
return true;
|
|
}
|
|
|
|
int QDECL VFSZIP_ReadBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
|
|
{
|
|
int read;
|
|
vfszip_t *vfsz = (vfszip_t*)file;
|
|
|
|
if (vfsz->defer)
|
|
return VFS_READ(vfsz->defer, buffer, bytestoread);
|
|
|
|
if (vfsz->iscompressed)
|
|
{
|
|
if (!VFSZIP_MakeActive(vfsz))
|
|
return 0;
|
|
read = unzReadCurrentFile(vfsz->parent->handle, buffer, bytestoread);
|
|
}
|
|
else
|
|
{
|
|
if (vfsz->parent->currentfile != file)
|
|
{
|
|
unzCloseCurrentFile(vfsz->parent->handle);
|
|
VFS_SEEK(vfsz->parent->raw, vfsz->pos+vfsz->startpos);
|
|
vfsz->parent->currentfile = file;
|
|
}
|
|
if (vfsz->pos + bytestoread > vfsz->length)
|
|
bytestoread = max(0, vfsz->length - vfsz->pos);
|
|
read = VFS_READ(vfsz->parent->raw, buffer, bytestoread);
|
|
}
|
|
|
|
vfsz->pos += read;
|
|
return read;
|
|
}
|
|
int QDECL VFSZIP_WriteBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
|
|
{
|
|
Sys_Error("VFSZIP_WriteBytes: Not supported\n");
|
|
return 0;
|
|
}
|
|
qboolean QDECL VFSZIP_Seek (struct vfsfile_s *file, unsigned long pos)
|
|
{
|
|
vfszip_t *vfsz = (vfszip_t*)file;
|
|
|
|
if (vfsz->defer)
|
|
return VFS_SEEK(vfsz->defer, pos);
|
|
|
|
//This is *really* inefficient
|
|
if (vfsz->iscompressed)
|
|
{ //if they're going to seek on a file in a zip, let's just copy it out
|
|
char buffer[8192];
|
|
unsigned int chunk;
|
|
unsigned int i;
|
|
unsigned int length;
|
|
|
|
vfsz->defer = FS_OpenTemp();
|
|
if (vfsz->defer)
|
|
{
|
|
if (vfsz->pos)
|
|
{
|
|
unzCloseCurrentFile(vfsz->parent->handle);
|
|
vfsz->parent->currentfile = NULL; //make it not us
|
|
}
|
|
|
|
length = vfsz->length;
|
|
i = 0;
|
|
vfsz->pos = 0;
|
|
if (!VFSZIP_MakeActive(vfsz))
|
|
{
|
|
/*shouldn't really happen*/
|
|
VFS_CLOSE(vfsz->defer);
|
|
vfsz->defer = NULL;
|
|
return false;
|
|
}
|
|
|
|
while (1)
|
|
{
|
|
chunk = length - i;
|
|
if (chunk > sizeof(buffer))
|
|
chunk = sizeof(buffer);
|
|
if (chunk == 0)
|
|
break;
|
|
unzReadCurrentFile(vfsz->parent->handle, buffer, chunk);
|
|
VFS_WRITE(vfsz->defer, buffer, chunk);
|
|
|
|
i += chunk;
|
|
}
|
|
}
|
|
|
|
unzCloseCurrentFile(vfsz->parent->handle);
|
|
vfsz->parent->currentfile = NULL; //make it not us
|
|
|
|
if (vfsz->defer)
|
|
return VFS_SEEK(vfsz->defer, pos);
|
|
else
|
|
{
|
|
unzCloseCurrentFile(vfsz->parent->handle);
|
|
vfsz->parent->currentfile = NULL; //make it not us, so the next read starts at the right place
|
|
}
|
|
}
|
|
else
|
|
{
|
|
vfsz->parent->currentfile = NULL;
|
|
}
|
|
|
|
if (pos < 0 || pos > vfsz->length)
|
|
return false;
|
|
vfsz->pos = pos;
|
|
|
|
return true;
|
|
}
|
|
unsigned long QDECL VFSZIP_Tell (struct vfsfile_s *file)
|
|
{
|
|
vfszip_t *vfsz = (vfszip_t*)file;
|
|
|
|
if (vfsz->defer)
|
|
return VFS_TELL(vfsz->defer);
|
|
|
|
return vfsz->pos;
|
|
}
|
|
unsigned long QDECL VFSZIP_GetLen (struct vfsfile_s *file)
|
|
{
|
|
vfszip_t *vfsz = (vfszip_t*)file;
|
|
return vfsz->length;
|
|
}
|
|
void QDECL VFSZIP_Close (struct vfsfile_s *file)
|
|
{
|
|
vfszip_t *vfsz = (vfszip_t*)file;
|
|
|
|
if (vfsz->parent->currentfile == file)
|
|
vfsz->parent->currentfile = NULL; //make it not us
|
|
|
|
if (vfsz->defer)
|
|
VFS_CLOSE(vfsz->defer);
|
|
|
|
FSZIP_ClosePath(vfsz->parent);
|
|
Z_Free(vfsz);
|
|
}
|
|
|
|
vfsfile_t *QDECL FSZIP_OpenVFS(void *handle, flocation_t *loc, const char *mode)
|
|
{
|
|
int rawofs;
|
|
zipfile_t *zip = handle;
|
|
vfszip_t *vfsz;
|
|
|
|
if (strcmp(mode, "rb"))
|
|
return NULL; //urm, unable to write/append
|
|
|
|
if (loc->len < 0)
|
|
return NULL;
|
|
|
|
vfsz = Z_Malloc(sizeof(vfszip_t));
|
|
|
|
vfsz->parent = zip;
|
|
vfsz->index = loc->index;
|
|
vfsz->startpos = zip->files[loc->index].filepos;
|
|
vfsz->length = loc->len;
|
|
|
|
#ifdef _DEBUG
|
|
Q_strncpyz(vfsz->funcs.dbgname, zip->files[loc->index].name, sizeof(vfsz->funcs.dbgname));
|
|
#endif
|
|
vfsz->funcs.Close = VFSZIP_Close;
|
|
vfsz->funcs.GetLen = VFSZIP_GetLen;
|
|
vfsz->funcs.ReadBytes = VFSZIP_ReadBytes;
|
|
vfsz->funcs.Seek = VFSZIP_Seek;
|
|
vfsz->funcs.Tell = VFSZIP_Tell;
|
|
vfsz->funcs.WriteBytes = NULL;
|
|
vfsz->funcs.seekingisabadplan = true;
|
|
|
|
unzLocateFileMy(vfsz->parent->handle, vfsz->index, vfsz->startpos);
|
|
rawofs = unzGetCurrentFileUncompressedPos(zip->handle);
|
|
vfsz->iscompressed = rawofs<0;
|
|
if (!vfsz->iscompressed)
|
|
{
|
|
vfsz->startpos = rawofs;
|
|
VFS_SEEK(zip->raw, vfsz->startpos);
|
|
vfsz->parent->currentfile = (vfsfile_t*)vfsz;
|
|
}
|
|
else if (!ZLIB_LOADED())
|
|
{
|
|
Z_Free(vfsz);
|
|
return NULL;
|
|
}
|
|
else if (!VFSZIP_MakeActive(vfsz)) /*this is called purely as a test*/
|
|
{
|
|
/*
|
|
windows explorer tends to use deflate64 on large files, which zlib and thus we, do not support, thus this is a 'common' failure path
|
|
this might also trigger from other errors, of course.
|
|
*/
|
|
Z_Free(vfsz);
|
|
return NULL;
|
|
}
|
|
|
|
zip->references++;
|
|
|
|
return (vfsfile_t*)vfsz;
|
|
}
|
|
|
|
searchpathfuncs_t zipfilefuncs = {
|
|
FSZIP_GetDisplayPath,
|
|
FSZIP_ClosePath,
|
|
FSZIP_BuildHash,
|
|
FSZIP_FLocate,
|
|
FSZIP_ReadFile,
|
|
FSZIP_EnumerateFiles,
|
|
FSZIP_LoadZipFile,
|
|
FSZIP_GeneratePureCRC,
|
|
FSZIP_OpenVFS
|
|
};
|
|
|
|
#endif
|
|
|