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@@ -1,452 +0,0 @@
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-/*
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- * MIX support routines for PhysicsFS.
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- *
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- * This driver handles old archives used in the famous games
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- * Command&Conquer Tiberium Dawn and Command&Conquer Red Alert.
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- *
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- * Newer MIX files as they are used in C&C Tiberium Sun and C&C Red Alert 2
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- * aren't supported yet. Keep your eyes open for future updates.
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- *
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- * A MIX file has three parts:
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- * (1) Header
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- * 16bit integer -> number of files stored in this MIX
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- * 32bit integer -> filesize
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- * (2) "Directory"
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- * 32bit integer -> hash of the filename
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- * 32bit integer -> starting offset in the MIX
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- * 32bit integer -> end offset in the MIX
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- * (3) Data (BODY)
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- * All data comes here
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- *
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- * NOTES:
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- * The offsets are relative to the body. So offset 0 is directly after
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- * the directory.
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- *
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- * Filenames only exist as hashes. So enumerate_files() will only report all
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- * hashes. Searching a filename in hashes is extremly quick so I decided not
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- * to include any sorting routines after then opening of the archive.
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- *
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- *
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- * I found the structure of MIX files here:
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- * http://www.geocities.com/SiliconValley/8682/cncmap1f.txt
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- *
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- *
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- * Please see the file LICENSE in the source's root directory.
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- *
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- * This file written by Sebastian Steinhauer <steini@steini-welt.de>
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- */
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-
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-#if HAVE_CONFIG_H
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-# include <config.h>
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-#endif
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-
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-#if (defined PHYSFS_SUPPORTS_MIX)
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-
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-#include <stdio.h>
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-#include <stdlib.h>
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-#include <string.h>
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-#include "physfs.h"
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-
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-#define __PHYSICSFS_INTERNAL__
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-#include "physfs_internal.h"
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-
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-typedef struct
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-{
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- PHYSFS_uint16 num_files;
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- PHYSFS_uint32 filesize;
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-} MIXheader;
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-
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-typedef struct
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-{
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- PHYSFS_uint32 hash;
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- PHYSFS_uint32 start_offset;
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- PHYSFS_uint32 end_offset;
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-} MIXentry;
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-
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-typedef struct
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-{
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- char *filename; /* filename of the archive */
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- MIXentry *entry; /* list of entries */
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- MIXheader header; /* the header of the MIX file */
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- PHYSFS_uint32 delta; /* size of header + entries */
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-} MIXinfo;
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-
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-typedef struct
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-{
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- PHYSFS_uint64 size; /* filesize */
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- PHYSFS_uint64 cur_pos; /* position in this file */
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- MIXentry *entry; /* pointer to the MIX entry */
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- MIXinfo *info; /* pointer to our MIXinfo */
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- void *handle; /* filehandle */
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-} MIXfileinfo;
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-
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-
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-static PHYSFS_uint32 MIX_hash(const char *name)
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-{
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- PHYSFS_uint32 id = 0;
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- PHYSFS_uint32 a = 0;
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- PHYSFS_uint32 i = 0;
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- PHYSFS_uint32 l;
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- PHYSFS_uint32 j;
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-
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- l = strlen(name);
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- while (i < l)
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- {
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- a = 0;
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- for(j = 0; j < 4; j++)
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- {
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- a >>= 8;
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- if (i < l)
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- {
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- a += (unsigned int) (name[i]) << 24;
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- i++;
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- } /* if */
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- } /* for */
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-
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- id = (id << 1 | id >> 31) + a;
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- } /* while */
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-
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- /* a bit debuggin :)
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- /printf("Filename %s -> %X\n",name,id); */
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-
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- return(id);
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-} /* MIX_hash */
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-
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-
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-static void MIX_dirClose(dvoid *opaque)
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-{
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- MIXinfo *info = ((MIXinfo *) opaque);
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- allocator.Free(info->entry);
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- allocator.Free(info->filename);
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-} /* MIX_dirClose */
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-
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-
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-static PHYSFS_sint64 MIX_read(fvoid *opaque, void *buffer,
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- PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
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-{
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- MIXfileinfo *finfo = (MIXfileinfo *) opaque;
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- MIXentry *entry = finfo->entry;
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- PHYSFS_uint32 read;
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-
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- /* set position in the archive */
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- __PHYSFS_platformSeek(finfo->handle,
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- finfo->info->delta +
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- entry->start_offset +
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- finfo->cur_pos);
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-
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- /* read n bytes */
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- read = __PHYSFS_platformRead(finfo->handle, buffer, objSize, objCount);
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-
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- /* keep filepointer up to date */
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- if (read)
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- finfo->cur_pos += read * objSize;
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-
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- return(read);
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-} /* MIX_read */
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-
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-
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-static PHYSFS_sint64 MIX_write(fvoid *opaque, const void *buffer,
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- PHYSFS_uint32 objSize, PHYSFS_uint32 objCount)
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-{
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- BAIL_MACRO(ERR_NOT_SUPPORTED, -1);
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-} /* MIX_write */
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-
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-
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-static int MIX_eof(fvoid *opaque)
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-{
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- MIXfileinfo *fifo = (MIXfileinfo *) opaque;
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- return(fifo->cur_pos >= fifo->size);
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-} /* MIX_eof */
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-
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-
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-static PHYSFS_sint64 MIX_tell(fvoid *opaque)
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-{
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- return(((MIXfileinfo *) opaque)->cur_pos);
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-} /* MIX_tell */
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-
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-
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-static int MIX_seek(fvoid *opaque, PHYSFS_uint64 offset)
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-{
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- MIXfileinfo *h = (MIXfileinfo *) opaque;
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-
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- BAIL_IF_MACRO(offset < 0, ERR_INVALID_ARGUMENT, 0);
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- BAIL_IF_MACRO(offset >= h->size, ERR_PAST_EOF, 0);
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- h->cur_pos = offset;
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- return(1);
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-} /* MIX_seek */
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-
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-
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-static PHYSFS_sint64 MIX_fileLength(fvoid *opaque)
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-{
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- return (((MIXfileinfo *) opaque)->size);
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-} /* MIX_fileLength */
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-
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-
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-static int MIX_fileClose(fvoid *opaque)
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-{
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- MIXfileinfo *finfo = (MIXfileinfo *) opaque;
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- __PHYSFS_platformClose(finfo->handle);
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- allocator.Free(finfo);
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- return(1);
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-} /* MIX_fileClose */
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-
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-
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-static int MIX_isArchive(const char *filename, int forWriting)
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-{
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- /* !!! FIXME:
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- write a simple detection routine for MIX files.
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- Unfortunaly MIX files have no ID in the header.
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- */
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- return(1);
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-} /* MIX_isArchive */
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-
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-
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-/*
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- * Read an unsigned 32-bit int and swap to native byte order.
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- */
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-static int readui32(void *in, PHYSFS_uint32 *val)
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-{
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- PHYSFS_uint32 v;
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- BAIL_IF_MACRO(__PHYSFS_platformRead(in, &v, sizeof (v), 1) != 1, NULL, 0);
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- *val = PHYSFS_swapULE32(v);
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- return(1);
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-} /* readui32 */
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-
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-
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-/*
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- * Read an unsigned 16-bit int and swap to native byte order.
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- */
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-static int readui16(void *in, PHYSFS_uint16 *val)
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-{
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- PHYSFS_uint16 v;
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- BAIL_IF_MACRO(__PHYSFS_platformRead(in, &v, sizeof (v), 1) != 1, NULL, 0);
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- *val = PHYSFS_swapULE16(v);
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- return(1);
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-} /* readui16 */
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-
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-
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-static void *MIX_openArchive(const char *name, int forWriting)
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-{
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- PHYSFS_uint32 i = 0;
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- MIXinfo *info = NULL;
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- void *handle = NULL;
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-
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- info = (MIXinfo *) allocator.Malloc(sizeof (MIXinfo));
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- BAIL_IF_MACRO(info == NULL, ERR_OUT_OF_MEMORY, 0);
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- memset(info, '\0', sizeof (MIXinfo));
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-
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- info->filename = (char *) allocator.Malloc(strlen(name) + 1);
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- GOTO_IF_MACRO(!info->filename, ERR_OUT_OF_MEMORY, MIX_openArchive_failed);
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-
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- /* store filename */
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- strcpy(info->filename, name);
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-
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- /* open the file */
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- handle = __PHYSFS_platformOpenRead(name);
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- if (!handle)
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- goto MIX_openArchive_failed;
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-
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- /* read the MIX header */
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- if ( (!readui16(handle, &info->header.num_files)) ||
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- (!readui32(handle, &info->header.filesize)) )
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- goto MIX_openArchive_failed;
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-
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- info->delta = 6 + (info->header.num_files * 12);
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-
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- /* allocate space for the entries and read the entries */
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- info->entry = allocator.Malloc(sizeof (MIXentry) * info->header.num_files);
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- GOTO_IF_MACRO(!info->entry, ERR_OUT_OF_MEMORY, MIX_openArchive_failed);
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-
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- /* read the directory list */
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- for (i = 0; i < header.num_files; i++)
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- {
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- if ( (!readui32(handle, &info->entry[i].hash)) ||
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- (!readui32(handle, &info->entry[i].start_offset)) ||
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- (!readui32(handle, &info->entry[i].end_offset)) )
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- goto MIX_openArchive_failed;
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- } /* for */
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-
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- __PHYSFS_platformClose(handle);
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-
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- return(info);
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-
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-MIX_openArchive_failed:
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- if (info != NULL)
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- {
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- if (info->filename != NULL)
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- allocator.Free(info->filename);
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- if (info->entry != NULL)
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- allocator.Free(info->entry);
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- allocator.Free(info);
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- } /* if */
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-
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- if (handle != NULL)
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- __PHYSFS_platformClose(handle);
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-
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- return(NULL);
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-} /* MIX_openArchive */
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-
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-
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-static void MIX_enumerateFiles(dvoid *opaque, const char *dname,
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- int omitSymLinks, PHYSFS_EnumFilesCallback cb,
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- const char *origdir, void *callbackdata)
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-{
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- /* no directories in MIX files. */
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- if (*dirname != '\0')
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- {
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- MIXinfo *info = (MIXinfo*) opaque;
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- MIXentry *entry = info->entry;
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- int i;
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- char buffer[32];
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-
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- for (i = 0; i < info->header.num_files; i++, entry++)
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- {
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- sprintf(buffer, "%X", entry->hash);
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- cb(callbackdata, origdir, buffer);
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- } /* for */
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- } /* if */
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-} /* MIX_enumerateFiles */
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-
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-
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-static MIXentry *MIX_find_entry(MIXinfo *info, const char *name)
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-{
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- MIXentry *entry = info->entry;
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- PHYSFS_uint32 i, id;
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-
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- /* create hash */
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- id = MIX_hash(name);
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-
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- /* look for this hash */
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- for (i = 0; i < info->header.num_files; i++, entry++)
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- {
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- if (entry->hash == id)
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- return(entry);
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- } /* for */
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-
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- /* nothing found... :( */
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- return(NULL);
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-} /* MIX_find_entry */
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-
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-
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-static int MIX_exists(dvoid *opaque, const char *name)
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-{
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- return(MIX_find_entry(((MIXinfo *) opaque), name) != NULL);
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-} /* MIX_exists */
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-
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-
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-static int MIX_isDirectory(dvoid *opaque, const char *name, int *fileExists)
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-{
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- *fileExists = MIX_exists(opaque, name);
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- return(0); /* never directories in a MIX */
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-} /* MIX_isDirectory */
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-
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-
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-static int MIX_isSymLink(dvoid *opaque, const char *name, int *fileExists)
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-{
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- *fileExists = MIX_exists(opaque, name);
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- return(0); /* never symlinks in a MIX. */
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-} /* MIX_isSymLink */
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-
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-
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-static PHYSFS_sint64 MIX_getLastModTime(dvoid *opaque,
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- const char *name,
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- int *fileExists)
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-{
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- BAIL_MACRO(ERR_NOT_SUPPORTED, 0); /* !!! FIXME: return .MIX's modtime. */
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-} /* MIX_getLastModTime */
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-
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-
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-static fvoid *MIX_openRead(dvoid *opaque, const char *fnm, int *fileExists)
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-{
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- MIXinfo *info = ((MIXinfo*) opaque);
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- MIXfileinfo *finfo;
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- MIXentry *entry;
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-
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- /* try to find this file */
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- entry = MIX_find_entry(info,fnm);
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- BAIL_IF_MACRO(entry == NULL, ERR_NO_SUCH_FILE, NULL);
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-
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- /* allocate a MIX handle */
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- finfo = (MIXfileinfo *) allocator.Malloc(sizeof (MIXfileinfo));
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- BAIL_IF_MACRO(finfo == NULL, ERR_OUT_OF_MEMORY, NULL);
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-
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- /* open the archive */
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- finfo->handle = __PHYSFS_platformOpenRead(info->filename);
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- if(!finfo->handle)
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- {
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- allocator.Free(finfo);
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- return(NULL);
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- } /* if */
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-
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- /* setup structures */
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- finfo->cur_pos = 0;
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- finfo->info = info;
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- finfo->entry = entry;
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- finfo->size = entry->end_offset - entry->start_offset;
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-
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- return(finfo);
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-} /* MIX_openRead */
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-
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-
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-static fvoid *MIX_openWrite(dvoid *opaque, const char *name)
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-{
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- BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
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-} /* MIX_openWrite */
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-
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-
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-static fvoid *MIX_openAppend(dvoid *opaque, const char *name)
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-{
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- BAIL_MACRO(ERR_NOT_SUPPORTED, NULL);
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-} /* MIX_openAppend */
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-
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-
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-static int MIX_remove(dvoid *opaque, const char *name)
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-{
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- BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
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-} /* MIX_remove */
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-
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-
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-static int MIX_mkdir(dvoid *opaque, const char *name)
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-{
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- BAIL_MACRO(ERR_NOT_SUPPORTED, 0);
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-} /* MIX_mkdir */
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-
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-
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-const PHYSFS_ArchiveInfo __PHYSFS_ArchiveInfo_MIX =
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-{
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- "MIX",
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- "Westwood archive (Tiberian Dawn / Red Alert)",
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- "Sebastian Steinhauer <steini@steini-welt.de>",
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- "http://icculus.org/physfs/",
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-};
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-
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-
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-const PHYSFS_Archiver __PHYSFS_Archiver_MIX =
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-{
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- &__PHYSFS_ArchiveInfo_MIX,
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- MIX_isArchive, /* isArchive() method */
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- MIX_openArchive, /* openArchive() method */
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- MIX_enumerateFiles, /* enumerateFiles() method */
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- MIX_exists, /* exists() method */
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- MIX_isDirectory, /* isDirectory() method */
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- MIX_isSymLink, /* isSymLink() method */
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- MIX_getLastModTime, /* getLastModTime() method */
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- MIX_openRead, /* openRead() method */
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- MIX_openWrite, /* openWrite() method */
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- MIX_openAppend, /* openAppend() method */
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- MIX_remove, /* remove() method */
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- MIX_mkdir, /* mkdir() method */
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- MIX_dirClose, /* dirClose() method */
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- MIX_read, /* read() method */
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- MIX_write, /* write() method */
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- MIX_eof, /* eof() method */
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- MIX_tell, /* tell() method */
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- MIX_seek, /* seek() method */
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- MIX_fileLength, /* fileLength() method */
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- MIX_fileClose /* fileClose() method */
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-};
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-
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-#endif /* defined PHYSFS_SUPPORTS_MIX */
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-
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-/* end of mix.c ... */
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-
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Ryan C. Gordon