mirror of
https://github.com/nzp-team/fteqw.git
synced 2024-11-23 12:22:42 +00:00
fe23d72d69
memory freeing tweeks batch data rearranged a little (to try to reduce memory). RBSP/FBSP fixed. lightstyles now supported. git-svn-id: https://svn.code.sf.net/p/fteqw/code/trunk@4059 fc73d0e0-1445-4013-8a0c-d673dee63da5
709 lines
16 KiB
C
709 lines
16 KiB
C
#include "quakedef.h"
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#include "fs.h"
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#ifdef AVAIL_ZLIB
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#ifndef ZEXPORT
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#define ZEXPORT VARGS
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#endif
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#include <zlib.h>
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typedef struct {
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unsigned char ident1;
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unsigned char ident2;
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unsigned char cm;
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unsigned char flags;
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unsigned int mtime;
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unsigned char xflags;
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unsigned char os;
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} gzheader_t;
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#define sizeofgzheader_t 10
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#define GZ_FTEXT 1
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#define GZ_FHCRC 2
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#define GZ_FEXTRA 4
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#define GZ_FNAME 8
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#define GZ_FCOMMENT 16
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#define GZ_RESERVED (32|64|128)
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#ifdef DYNAMIC_ZLIB
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#define ZLIB_LOADED() (zlib_handle!=NULL)
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void *zlib_handle;
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#define ZSTATIC(n)
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#else
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#define ZLIB_LOADED() 1
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#define ZSTATIC(n) = &n
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#ifdef _MSC_VER
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# ifdef _WIN64
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# pragma comment(lib, MSVCLIBSPATH "zlib64.lib")
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# else
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# pragma comment(lib, MSVCLIBSPATH "zlib.lib")
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# endif
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#endif
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#endif
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//#pragma comment(lib, MSVCLIBSPATH "zlib.lib")
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static int (ZEXPORT *qinflateEnd) (z_streamp strm) ZSTATIC(inflateEnd);
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static int (ZEXPORT *qinflate) (z_streamp strm, int flush) ZSTATIC(inflate);
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static int (ZEXPORT *qinflateInit2_) (z_streamp strm, int windowBits,
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const char *version, int stream_size) ZSTATIC(inflateInit2_);
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static uLong (ZEXPORT *qcrc32) (uLong crc, const Bytef *buf, uInt len) ZSTATIC(crc32);
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#define qinflateInit2(strm, windowBits) \
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qinflateInit2_((strm), (windowBits), ZLIB_VERSION, sizeof(z_stream))
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qboolean LibZ_Init(void)
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{
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#ifdef DYNAMIC_ZLIB
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static dllfunction_t funcs[] =
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{
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{(void*)&qinflateEnd, "inflateEnd"},
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{(void*)&qinflate, "inflate"},
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{(void*)&qinflateInit2_, "inflateInit2_"},
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{(void*)&qcrc32, "crc32"},
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{NULL, NULL}
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};
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if (!ZLIB_LOADED())
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zlib_handle = Sys_LoadLibrary("zlib1", funcs);
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#endif
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return ZLIB_LOADED();
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}
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vfsfile_t *FS_DecompressGZip(vfsfile_t *infile)
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{
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char inchar;
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unsigned short inshort;
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vfsfile_t *temp;
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gzheader_t header;
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if (VFS_READ(infile, &header, sizeofgzheader_t) == sizeofgzheader_t)
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{
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if (header.ident1 != 0x1f || header.ident2 != 0x8b || header.cm != 8 || header.flags & GZ_RESERVED)
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{
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VFS_SEEK(infile, 0);
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return infile;
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}
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}
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else
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{
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VFS_SEEK(infile, 0);
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return infile;
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}
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if (header.flags & GZ_FEXTRA)
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{
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VFS_READ(infile, &inshort, sizeof(inshort));
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inshort = LittleShort(inshort);
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VFS_SEEK(infile, VFS_TELL(infile) + inshort);
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}
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if (header.flags & GZ_FNAME)
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{
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Con_Printf("gzipped file name: ");
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do {
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if (VFS_READ(infile, &inchar, sizeof(inchar)) != 1)
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break;
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Con_Printf("%c", inchar);
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} while(inchar);
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Con_Printf("\n");
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}
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if (header.flags & GZ_FCOMMENT)
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{
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Con_Printf("gzipped file comment: ");
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do {
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if (VFS_READ(infile, &inchar, sizeof(inchar)) != 1)
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break;
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Con_Printf("%c", inchar);
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} while(inchar);
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Con_Printf("\n");
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}
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if (header.flags & GZ_FHCRC)
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{
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VFS_READ(infile, &inshort, sizeof(inshort));
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}
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temp = FS_OpenTemp();
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if (!temp)
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{
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VFS_SEEK(infile, 0); //doh
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return infile;
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}
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{
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unsigned char inbuffer[16384];
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unsigned char outbuffer[16384];
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int ret;
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z_stream strm = {
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inbuffer,
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0,
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0,
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outbuffer,
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sizeof(outbuffer),
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0,
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NULL,
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NULL,
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NULL,
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NULL,
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NULL,
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Z_UNKNOWN,
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0,
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0
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};
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strm.avail_in = VFS_READ(infile, inbuffer, sizeof(inbuffer));
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strm.next_in = inbuffer;
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qinflateInit2(&strm, -MAX_WBITS);
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while ((ret=qinflate(&strm, Z_SYNC_FLUSH)) != Z_STREAM_END)
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{
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if (strm.avail_in == 0 || strm.avail_out == 0)
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{
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if (strm.avail_in == 0)
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{
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strm.avail_in = VFS_READ(infile, inbuffer, sizeof(inbuffer));
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strm.next_in = inbuffer;
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if (!strm.avail_in)
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break;
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}
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if (strm.avail_out == 0)
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{
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strm.next_out = outbuffer;
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VFS_WRITE(temp, outbuffer, strm.total_out);
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strm.total_out = 0;
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strm.avail_out = sizeof(outbuffer);
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}
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continue;
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}
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//doh, it terminated for no reason
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if (ret != Z_STREAM_END)
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{
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qinflateEnd(&strm);
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Con_Printf("Couldn't decompress gz file\n");
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VFS_CLOSE(temp);
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VFS_CLOSE(infile);
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return NULL;
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}
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}
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//we got to the end
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VFS_WRITE(temp, outbuffer, strm.total_out);
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qinflateEnd(&strm);
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VFS_SEEK(temp, 0);
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}
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VFS_CLOSE(infile);
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return temp;
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}
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#include "unzip.c"
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typedef struct
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{
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fsbucket_t bucket;
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char name[MAX_QPATH];
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int filepos, filelen;
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} zpackfile_t;
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typedef struct zipfile_s
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{
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char filename[MAX_OSPATH];
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unzFile handle;
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int numfiles;
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zpackfile_t *files;
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#ifdef HASH_FILESYSTEM
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hashtable_t hash;
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#endif
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vfsfile_t *raw;
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vfsfile_t *currentfile; //our unzip.c can only handle one active file at any one time
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//so we have to keep closing and switching.
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//slow, but it works. most of the time we'll only have a single file open anyway.
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int references; //and a reference count
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} zipfile_t;
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static void FSZIP_PrintPath(void *handle)
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{
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zipfile_t *zip = handle;
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if (zip->references != 1)
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Con_Printf("%s (%i)\n", zip->filename, zip->references-1);
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else
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Con_Printf("%s\n", zip->filename);
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}
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static void FSZIP_ClosePath(void *handle)
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{
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zipfile_t *zip = handle;
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if (--zip->references > 0)
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return; //not yet time
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unzClose(zip->handle);
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if (zip->files)
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Z_Free(zip->files);
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Z_Free(zip);
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}
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static void FSZIP_BuildHash(void *handle, int depth)
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{
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zipfile_t *zip = handle;
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int i;
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for (i = 0; i < zip->numfiles; i++)
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{
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FS_AddFileHash(depth, zip->files[i].name, &zip->files[i].bucket, &zip->files[i]);
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}
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}
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static qboolean FSZIP_FLocate(void *handle, flocation_t *loc, const char *filename, void *hashedresult)
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{
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zpackfile_t *pf = hashedresult;
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int i, len;
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zipfile_t *zip = handle;
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// look through all the pak file elements
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if (pf)
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{ //is this a pointer to a file in this pak?
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if (pf < zip->files || pf >= zip->files + zip->numfiles)
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return false; //was found in a different path
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}
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else
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{
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for (i=0 ; i<zip->numfiles ; i++) //look for the file
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{
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if (!stricmp (zip->files[i].name, filename))
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{
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pf = &zip->files[i];
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break;
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}
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}
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}
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if (pf)
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{
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len = pf->filelen;
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if (loc)
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{
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loc->index = pf - zip->files;
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strcpy(loc->rawname, zip->filename);
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loc->offset = pf->filepos;
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loc->len = pf->filelen;
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unzLocateFileMy (zip->handle, loc->index, zip->files[loc->index].filepos);
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loc->offset = unzGetCurrentFileUncompressedPos(zip->handle);
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// if (loc->offset<0)
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// { //file not found, or is compressed.
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// *loc->rawname = '\0';
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// loc->offset=0;
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// }
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}
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return true;
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}
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return false;
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}
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static void FSZIP_ReadFile(void *handle, flocation_t *loc, char *buffer)
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{
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zipfile_t *zip = handle;
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int err;
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unzLocateFileMy (zip->handle, loc->index, zip->files[loc->index].filepos);
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unzOpenCurrentFile (zip->handle);
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err = unzReadCurrentFile (zip->handle, buffer, zip->files[loc->index].filelen);
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unzCloseCurrentFile (zip->handle);
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if (err!=zip->files[loc->index].filelen)
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{
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Con_Printf ("Can't extract file \"%s:%s\" (corrupt)\n", zip->filename, zip->files[loc->index].name);
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return;
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}
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return;
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}
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static int FSZIP_EnumerateFiles (void *handle, const char *match, int (*func)(const char *, int, void *), void *parm)
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{
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zipfile_t *zip = handle;
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int num;
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for (num = 0; num<(int)zip->numfiles; num++)
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{
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if (wildcmp(match, zip->files[num].name))
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{
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if (!func(zip->files[num].name, zip->files[num].filelen, parm))
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return false;
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}
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}
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return true;
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}
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/*
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=================
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COM_LoadZipFile
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Takes an explicit (not game tree related) path to a pak file.
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Loads the header and directory, adding the files at the beginning
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of the list so they override previous pack files.
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=================
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*/
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static void *FSZIP_LoadZipFile (vfsfile_t *packhandle, const char *desc)
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{
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int i;
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int nextfileziphandle;
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zipfile_t *zip;
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zpackfile_t *newfiles;
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unz_global_info globalinf = {0};
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unz_file_info file_info;
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zip = Z_Malloc(sizeof(zipfile_t));
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Q_strncpyz(zip->filename, desc, sizeof(zip->filename));
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zip->handle = unzOpen ((zip->raw = packhandle));
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if (!zip->handle)
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{
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Z_Free(zip);
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Con_TPrintf (TL_COULDNTOPENZIP, desc);
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return NULL;
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}
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unzGetGlobalInfo (zip->handle, &globalinf);
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zip->numfiles = globalinf.number_entry;
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zip->files = newfiles = Z_Malloc (zip->numfiles * sizeof(zpackfile_t));
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for (i = 0; i < zip->numfiles; i++)
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{
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if (unzGetCurrentFileInfo (zip->handle, &file_info, newfiles[i].name, sizeof(newfiles[i].name), NULL, 0, NULL, 0) != UNZ_OK)
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Con_Printf("Zip Error\n");
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Q_strlwr(newfiles[i].name);
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if (!*newfiles[i].name || newfiles[i].name[strlen(newfiles[i].name)-1] == '/')
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newfiles[i].filelen = -1;
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else
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newfiles[i].filelen = file_info.uncompressed_size;
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newfiles[i].filepos = file_info.c_offset;
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nextfileziphandle = unzGoToNextFile (zip->handle);
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if (nextfileziphandle == UNZ_END_OF_LIST_OF_FILE)
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break;
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else if (nextfileziphandle != UNZ_OK)
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Con_Printf("Zip Error\n");
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}
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zip->references = 1;
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zip->currentfile = NULL;
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Con_TPrintf (TL_ADDEDZIPFILE, desc, zip->numfiles);
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return zip;
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}
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int FSZIP_GeneratePureCRC(void *handle, int seed, int crctype)
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{
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zipfile_t *zip = handle;
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unz_file_info file_info;
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int result;
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int *filecrcs;
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int numcrcs=0;
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int i;
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filecrcs = BZ_Malloc((zip->numfiles+1)*sizeof(int));
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filecrcs[numcrcs++] = seed;
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unzGoToFirstFile(zip->handle);
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for (i = 0; i < zip->numfiles; i++)
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{
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if (zip->files[i].filelen>0)
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{
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unzGetCurrentFileInfo (zip->handle, &file_info, NULL, 0, NULL, 0, NULL, 0);
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filecrcs[numcrcs++] = file_info.crc;
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}
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unzGoToNextFile (zip->handle);
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}
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if (crctype)
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result = Com_BlockChecksum(filecrcs, numcrcs*sizeof(int));
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else
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result = Com_BlockChecksum(filecrcs+1, (numcrcs-1)*sizeof(int));
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BZ_Free(filecrcs);
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return result;
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}
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typedef struct {
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vfsfile_t funcs;
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vfsfile_t *defer;
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//in case we're forced away.
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zipfile_t *parent;
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qboolean iscompressed;
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int pos;
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int length; //try and optimise some things
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int index;
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int startpos;
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} vfszip_t;
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qboolean VFSZIP_MakeActive(vfszip_t *vfsz)
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{
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int i;
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char buffer[8192]; //must be power of two
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if ((vfszip_t*)vfsz->parent->currentfile == vfsz)
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return true; //already us
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if (vfsz->parent->currentfile)
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unzCloseCurrentFile(vfsz->parent->handle);
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unzLocateFileMy(vfsz->parent->handle, vfsz->index, vfsz->startpos);
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if (unzOpenCurrentFile(vfsz->parent->handle) == UNZ_BADZIPFILE)
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{
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unz_file_info file_info;
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buffer[0] = '?';
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buffer[1] = 0;
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if (unzGetCurrentFileInfo (vfsz->parent->handle, &file_info, buffer, sizeof(buffer), NULL, 0, NULL, 0) != UNZ_OK)
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Con_Printf("Zip Error\n");
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if (file_info.compression_method && file_info.compression_method != Z_DEFLATED)
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Con_Printf("unsupported compression method on %s/%s\n", vfsz->parent->filename, buffer);
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else
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Con_Printf("corrupt file within zip, %s/%s\n", vfsz->parent->filename, buffer);
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vfsz->parent->currentfile = NULL;
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return false;
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}
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if (vfsz->pos > 0)
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{
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Con_DPrintf("VFSZIP_MakeActive: Shockingly inefficient\n");
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//now we need to seek up to where we had previously gotten to.
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for (i = 0; i < vfsz->pos-sizeof(buffer); i++)
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unzReadCurrentFile(vfsz->parent->handle, buffer, sizeof(buffer));
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unzReadCurrentFile(vfsz->parent->handle, buffer, vfsz->pos - i);
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}
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vfsz->parent->currentfile = (vfsfile_t*)vfsz;
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return true;
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}
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int VFSZIP_ReadBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
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{
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int read;
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vfszip_t *vfsz = (vfszip_t*)file;
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if (vfsz->defer)
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return VFS_READ(vfsz->defer, buffer, bytestoread);
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if (vfsz->iscompressed)
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{
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if (!VFSZIP_MakeActive(vfsz))
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return 0;
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read = unzReadCurrentFile(vfsz->parent->handle, buffer, bytestoread);
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}
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else
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{
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if (vfsz->parent->currentfile != file)
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{
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unzCloseCurrentFile(vfsz->parent->handle);
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VFS_SEEK(vfsz->parent->raw, vfsz->pos+vfsz->startpos);
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vfsz->parent->currentfile = file;
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}
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read = VFS_READ(vfsz->parent->raw, buffer, bytestoread);
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}
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vfsz->pos += read;
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return read;
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}
|
|
int VFSZIP_WriteBytes (struct vfsfile_s *file, void *buffer, int bytestoread)
|
|
{
|
|
Sys_Error("VFSZIP_WriteBytes: Not supported\n");
|
|
return 0;
|
|
}
|
|
qboolean 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 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 VFSZIP_GetLen (struct vfsfile_s *file)
|
|
{
|
|
vfszip_t *vfsz = (vfszip_t*)file;
|
|
return vfsz->length;
|
|
}
|
|
void 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 *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_PrintPath,
|
|
FSZIP_ClosePath,
|
|
FSZIP_BuildHash,
|
|
FSZIP_FLocate,
|
|
FSZIP_ReadFile,
|
|
FSZIP_EnumerateFiles,
|
|
FSZIP_LoadZipFile,
|
|
FSZIP_GeneratePureCRC,
|
|
FSZIP_OpenVFS
|
|
};
|
|
|
|
#endif
|
|
|