212 lines
7.0 KiB
C
212 lines
7.0 KiB
C
// SONIC ROBO BLAST 2
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//-----------------------------------------------------------------------------
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// Copyright (C) 1993-1996 by id Software, Inc.
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// Copyright (C) 1998-2000 by DooM Legacy Team.
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// Copyright (C) 1999-2021 by Sonic Team Junior.
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//
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// This program is free software distributed under the
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// terms of the GNU General Public License, version 2.
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// See the 'LICENSE' file for more details.
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//-----------------------------------------------------------------------------
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/// \file w_wad.h
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/// \brief WAD I/O functions, wad resource definitions (some)
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#ifndef __W_WAD__
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#define __W_WAD__
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#ifdef HWRENDER
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#include "hardware/hw_data.h"
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#endif
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#ifdef __GNUG__
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#pragma interface
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#endif
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// a raw entry of the wad directory
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// NOTE: This sits here and not in w_wad.c because p_setup.c makes use of it to load map WADs inside PK3s.
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#if defined(_MSC_VER)
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#pragma pack(1)
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#endif
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typedef struct
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{
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UINT32 filepos; // file offset of the resource
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UINT32 size; // size of the resource
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char name[8]; // name of the resource
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} ATTRPACK filelump_t;
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#if defined(_MSC_VER)
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#pragma pack()
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#endif
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// ==============================================================
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// WAD FILE STRUCTURE DEFINITIONS
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// ==============================================================
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// header of a wad file
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typedef struct
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{
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char identification[4]; // should be "IWAD" or "PWAD"
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UINT32 numlumps; // how many resources
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UINT32 infotableofs; // the 'directory' of resources
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} wadinfo_t;
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// Available compression methods for lumps.
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typedef enum
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{
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CM_NOCOMPRESSION,
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#ifdef HAVE_ZLIB
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CM_DEFLATE,
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#endif
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CM_LZF,
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CM_UNSUPPORTED
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} compmethod;
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// a memory entry of the wad directory
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typedef struct
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{
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unsigned long position; // filelump_t filepos
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unsigned long disksize; // filelump_t size
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char name[9]; // filelump_t name[] e.g. "LongEntr"
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char *longname; // e.g. "LongEntryName"
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char *fullname; // e.g. "Folder/Subfolder/LongEntryName.extension"
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size_t size; // real (uncompressed) size
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compmethod compression; // lump compression method
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} lumpinfo_t;
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// =========================================================================
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// 'VIRTUAL' RESOURCES
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// =========================================================================
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typedef struct {
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char name[9];
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UINT8* data;
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size_t size;
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} virtlump_t;
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typedef struct {
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size_t numlumps;
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virtlump_t* vlumps;
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} virtres_t;
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virtres_t* vres_GetMap(lumpnum_t);
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void vres_Free(virtres_t*);
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virtlump_t* vres_Find(const virtres_t*, const char*);
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// =========================================================================
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// DYNAMIC WAD LOADING
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// =========================================================================
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#define MAX_WADPATH 512
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#define MAX_WADFILES 48 // maximum of wad files used at the same time
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// (there is a max of simultaneous open files anyway, and this should be plenty)
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#define lumpcache_t void *
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// Resource type of the WAD. Yeah, I know this sounds dumb, but I'll leave it like this until I clean up the code further.
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typedef enum restype
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{
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RET_WAD,
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RET_SOC,
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RET_LUA,
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RET_PK3,
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RET_UNKNOWN,
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} restype_t;
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typedef struct wadfile_s
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{
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char *filename;
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restype_t type;
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lumpinfo_t *lumpinfo;
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lumpcache_t *lumpcache;
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lumpcache_t *patchcache;
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UINT16 numlumps; // this wad's number of resources
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FILE *handle;
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UINT32 filesize; // for network
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UINT8 md5sum[16];
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boolean important; // also network - !W_VerifyNMUSlumps
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} wadfile_t;
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#define WADFILENUM(lumpnum) (UINT16)((lumpnum)>>16) // wad flumpnum>>16) // wad file number in upper word
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#define LUMPNUM(lumpnum) (UINT16)((lumpnum)&0xFFFF) // lump number for this pwad
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extern UINT16 numwadfiles;
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extern wadfile_t *wadfiles[MAX_WADFILES];
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// =========================================================================
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void W_Shutdown(void);
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// Opens a WAD file. Returns the FILE * handle for the file, or NULL if not found or could not be opened
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FILE *W_OpenWadFile(const char **filename, boolean useerrors);
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// Load and add a wadfile to the active wad files, returns numbers of lumps, INT16_MAX on error
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UINT16 W_InitFile(const char *filename, boolean mainfile, boolean startup);
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// W_InitMultipleFiles exits if a file was not found, but not if all is okay.
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void W_InitMultipleFiles(char **filenames);
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const char *W_CheckNameForNumPwad(UINT16 wad, UINT16 lump);
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const char *W_CheckNameForNum(lumpnum_t lumpnum);
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UINT16 W_CheckNumForNamePwad(const char *name, UINT16 wad, UINT16 startlump); // checks only in one pwad
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UINT16 W_CheckNumForLongNamePwad(const char *name, UINT16 wad, UINT16 startlump);
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/* Find the first lump after F_START for instance. */
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UINT16 W_CheckNumForMarkerStartPwad(const char *name, UINT16 wad, UINT16 startlump);
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UINT16 W_CheckNumForFullNamePK3(const char *name, UINT16 wad, UINT16 startlump);
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UINT16 W_CheckNumForFolderStartPK3(const char *name, UINT16 wad, UINT16 startlump);
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UINT16 W_CheckNumForFolderEndPK3(const char *name, UINT16 wad, UINT16 startlump);
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lumpnum_t W_CheckNumForMap(const char *name);
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lumpnum_t W_CheckNumForName(const char *name);
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lumpnum_t W_CheckNumForLongName(const char *name);
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lumpnum_t W_GetNumForName(const char *name); // like W_CheckNumForName but I_Error on LUMPERROR
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lumpnum_t W_GetNumForLongName(const char *name);
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lumpnum_t W_CheckNumForNameInBlock(const char *name, const char *blockstart, const char *blockend);
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UINT8 W_LumpExists(const char *name); // Lua uses this.
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size_t W_LumpLengthPwad(UINT16 wad, UINT16 lump);
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size_t W_LumpLength(lumpnum_t lumpnum);
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boolean W_IsLumpWad(lumpnum_t lumpnum); // for loading maps from WADs in PK3s
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boolean W_IsLumpFolder(UINT16 wad, UINT16 lump); // for detecting folder "lumps"
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#ifdef HAVE_ZLIB
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void zerr(int ret); // zlib error checking
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#endif
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size_t W_ReadLumpHeaderPwad(UINT16 wad, UINT16 lump, void *dest, size_t size, size_t offset);
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size_t W_ReadLumpHeader(lumpnum_t lump, void *dest, size_t size, size_t offest); // read all or a part of a lump
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void W_ReadLumpPwad(UINT16 wad, UINT16 lump, void *dest);
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void W_ReadLump(lumpnum_t lump, void *dest);
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void *W_CacheLumpNumPwad(UINT16 wad, UINT16 lump, INT32 tag);
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void *W_CacheLumpNum(lumpnum_t lump, INT32 tag);
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void *W_CacheLumpNumForce(lumpnum_t lumpnum, INT32 tag);
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boolean W_IsLumpCached(lumpnum_t lump, void *ptr);
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boolean W_IsPatchCached(lumpnum_t lump, void *ptr);
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void *W_CacheLumpName(const char *name, INT32 tag);
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void *W_CachePatchName(const char *name, INT32 tag);
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void *W_CachePatchLongName(const char *name, INT32 tag);
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// Returns either a Software patch, or an OpenGL patch.
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// Performs any necessary conversions from PNG images.
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void *W_CachePatchNumPwad(UINT16 wad, UINT16 lump, INT32 tag);
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void *W_CachePatchNum(lumpnum_t lumpnum, INT32 tag);
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// Returns a Software patch.
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// Performs any necessary conversions from PNG images.
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void *W_CacheSoftwarePatchNumPwad(UINT16 wad, UINT16 lump, INT32 tag);
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void *W_CacheSoftwarePatchNum(lumpnum_t lumpnum, INT32 tag);
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void W_UnlockCachedPatch(void *patch);
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void W_VerifyFileMD5(UINT16 wadfilenum, const char *matchmd5);
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int W_VerifyNMUSlumps(const char *filename, boolean exit_on_error);
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#endif // __W_WAD__
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