143 lines
4.6 KiB
C
143 lines
4.6 KiB
C
/*
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wadfile.h - WAD3 file format
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Copyright (C) 2015 Uncle Mike
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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#ifndef WADFILE_H
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#define WADFILE_H
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/*
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========================================================================
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.WAD archive format (WhereAllData - WAD)
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List of compressed files, that can be identify only by TYP_*
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<format>
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header: dwadinfo_t[dwadinfo_t]
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file_1: byte[dwadinfo_t[num]->disksize]
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file_2: byte[dwadinfo_t[num]->disksize]
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file_3: byte[dwadinfo_t[num]->disksize]
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...
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file_n: byte[dwadinfo_t[num]->disksize]
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infotable dlumpinfo_t[dwadinfo_t->numlumps]
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========================================================================
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*/
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#define IDWAD2HEADER (('2'<<24)+('D'<<16)+('A'<<8)+'W') // little-endian "WAD2" quake wads
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#define IDWAD3HEADER (('3'<<24)+('D'<<16)+('A'<<8)+'W') // little-endian "WAD3" half-life wads
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// dlumpinfo_t->attribs
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#define ATTR_NONE 0 // allow to read-write
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#define ATTR_READONLY BIT( 0 ) // don't overwrite this lump in anyway
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#define ATTR_COMPRESSED BIT( 1 ) // not used for now, just reserved
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#define ATTR_HIDDEN BIT( 2 ) // not used for now, just reserved
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#define ATTR_SYSTEM BIT( 3 ) // not used for now, just reserved
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// dlumpinfo_t->type
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#define TYP_ANY -1 // any type can be accepted
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#define TYP_NONE 0 // unknown lump type
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#define TYP_LABEL 1 // legacy from Doom1. Empty lump - label (like P_START, P_END etc)
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#define TYP_PALETTE 64 // quake or half-life palette (768 bytes)
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#define TYP_DDSTEX 65 // contain DDS texture
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#define TYP_GFXPIC 66 // menu or hud image (not contain mip-levels)
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#define TYP_MIPTEX 67 // quake1 and half-life in-game textures with four miplevels
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#define TYP_SCRIPT 68 // contain script files
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#define TYP_COLORMAP2 69 // old stuff. build palette from LBM file (not used)
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#define TYP_QFONT 70 // half-life font (qfont_t)
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// dlumpinfo_t->img_type
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#define IMG_DIFFUSE 0 // same as default pad1 always equal 0
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#define IMG_ALPHAMASK 1 // alpha-channel that stored separate as luminance texture
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#define IMG_NORMALMAP 2 // indexed normalmap
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#define IMG_GLOSSMAP 3 // luminance or color specularity map
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#define IMG_GLOSSPOWER 4 // gloss power map (each value is a specular pow)
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#define IMG_HEIGHTMAP 5 // heightmap (for parallax occlusion mapping or source of normalmap)
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#define IMG_LUMA 6 // luma or glow texture with self-illuminated parts
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#define IMG_DECAL_ALPHA 7 // it's a decal texture (last color in palette is base color, and other colors his graduations)
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#define IMG_DECAL_COLOR 8 // decal without alpha-channel uses base, like 127 127 127 as transparent color
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#define WAD3_NAMELEN 16
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#define HINT_NAMELEN 5 // e.g. _mask, _norm
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#define MAX_FILES_IN_WAD 65535 // real limit as above <2Gb size not a lumpcount
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typedef struct
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{
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int ident; // should be WAD3
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int numlumps; // num files
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int infotableofs; // LUT offset
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} dwadinfo_t;
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typedef struct
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{
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int filepos; // file offset in WAD
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int disksize; // compressed or uncompressed
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int size; // uncompressed
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char type; // TYP_*
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char attribs; // file attribs
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char img_type; // IMG_*
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char pad;
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char name[WAD3_NAMELEN]; // must be null terminated
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} dlumpinfo_t;
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/*
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========================================================================
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.LMP image format (Half-Life gfx.wad lumps)
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========================================================================
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*/
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typedef struct lmp_s
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{
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unsigned int width;
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unsigned int height;
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} lmp_t;
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/*
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========================================================================
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.MIP image format (half-Life textures)
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========================================================================
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*/
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typedef struct mip_s
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{
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char name[WAD3_NAMELEN];
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unsigned int width;
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unsigned int height;
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unsigned int offsets[4]; // four mip maps stored
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} mip_t;
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/*
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========================================================================
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.FNT image format (half-Life fonts)
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========================================================================
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*/
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#define NUM_GLYPHS 256
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typedef struct
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{
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short startoffset;
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short charwidth;
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} charinfo;
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typedef struct qfont_s
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{
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int width, height;
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int rowcount;
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int rowheight;
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charinfo fontinfo[NUM_GLYPHS];
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} qfont_t;
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#endif//WADFILE_H
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