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/*
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bspfile.h - BSP format included q1, hl1 support
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Copyright (C) 2010 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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#pragma once
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#ifndef BSPFILE_H
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#define BSPFILE_H
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/*
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==============================================================================
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BRUSH MODELS
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.bsp contain level static geometry with including PVS and lightning info
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==============================================================================
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*/
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// header
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#define Q1BSP_VERSION 29 // quake1 regular version (beta is 28)
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#define HLBSP_VERSION 30 // half-life regular version
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#define XTBSP_VERSION 31 // extended lightmaps and expanded clipnodes limit
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#define IDEXTRAHEADER (('H'<<24)+('S'<<16)+('A'<<8)+'X') // little-endian "XASH"
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#define EXTRA_VERSION 2 // because version 1 was occupied by old versions of XashXT
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#define DELUXEMAP_VERSION 1
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#define IDDELUXEMAPHEADER (('T'<<24)+('I'<<16)+('L'<<8)+'Q') // little-endian "QLIT"
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// worldcraft predefined angles
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#define ANGLE_UP -1
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#define ANGLE_DOWN -2
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// bmodel limits
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#define MAX_MAP_HULLS 4 // MAX_HULLS
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#define SURF_NOCULL BIT( 0 ) // two-sided polygon (e.g. 'water4b')
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#define SURF_PLANEBACK BIT( 1 ) // plane should be negated
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#define SURF_DRAWSKY BIT( 2 ) // sky surface
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#define SURF_WATERCSG BIT( 3 ) // culled by csg (was SURF_DRAWSPRITE)
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#define SURF_DRAWTURB BIT( 4 ) // warp surface
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#define SURF_DRAWTILED BIT( 5 ) // face without lighmap
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#define SURF_CONVEYOR BIT( 6 ) // scrolled texture (was SURF_DRAWBACKGROUND)
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#define SURF_UNDERWATER BIT( 7 ) // caustics
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#define SURF_TRANSPARENT BIT( 8 ) // it's a transparent texture (was SURF_DONTWARP)
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#define SURF_REFLECT BIT( 31 ) // reflect surface (mirror)
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// lightstyle management
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#define LM_STYLES 4 // MAXLIGHTMAPS
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#define LS_NORMAL 0x00
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#define LS_UNUSED 0xFE
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#define LS_NONE 0xFF
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#define MAX_MAP_MODELS 1024 // can be increased up to 2048 if needed
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#define MAX_MAP_BRUSHES 32768 // unsigned short limit
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#define MAX_MAP_ENTITIES 8192 // can be increased up to 32768 if needed
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#define MAX_MAP_ENTSTRING 0x80000 // 512 kB should be enough
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#define MAX_MAP_PLANES 65536 // can be increased without problems
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#define MAX_MAP_NODES 32767 // because negative shorts are leafs
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#define MAX_MAP_CLIPNODES 32767 // because negative shorts are contents
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#define MAX_MAP_LEAFS 32767 // signed short limit
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#define MAX_MAP_VERTS 65535 // unsigned short limit
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#define MAX_MAP_FACES 65535 // unsigned short limit
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#define MAX_MAP_MARKSURFACES 65535 // unsigned short limit
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#define MAX_MAP_TEXINFO MAX_MAP_FACES // in theory each face may have personal texinfo
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#define MAX_MAP_EDGES 0x100000 // can be increased but not needed
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#define MAX_MAP_SURFEDGES 0x200000 // can be increased but not needed
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#define MAX_MAP_TEXTURES 2048 // can be increased but not needed
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#define MAX_MAP_MIPTEX 0x2000000 // 32 Mb internal textures data
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#define MAX_MAP_LIGHTING 0x2000000 // 32 Mb lightmap raw data (can contain deluxemaps)
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#define MAX_MAP_VISIBILITY 0x800000 // 8 Mb visdata
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// quake lump ordering
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#define LUMP_ENTITIES 0
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#define LUMP_PLANES 1
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#define LUMP_TEXTURES 2 // internal textures
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#define LUMP_VERTEXES 3
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#define LUMP_VISIBILITY 4
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#define LUMP_NODES 5
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#define LUMP_TEXINFO 6
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#define LUMP_FACES 7
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#define LUMP_LIGHTING 8
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#define LUMP_CLIPNODES 9
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#define LUMP_LEAFS 10
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#define LUMP_MARKSURFACES 11
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#define LUMP_EDGES 12
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#define LUMP_SURFEDGES 13
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#define LUMP_MODELS 14 // internal submodels
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#define HEADER_LUMPS 15
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// version 31
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#define LUMP_CLIPNODES2 15 // hull0 goes into LUMP_NODES, hull1 goes into LUMP_CLIPNODES,
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#define LUMP_CLIPNODES3 16 // hull2 goes into LUMP_CLIPNODES2, hull3 goes into LUMP_CLIPNODES3
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#define HEADER_LUMPS_31 17
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#define LUMP_FACES_EXTRADATA 0 // extension of dface_t
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#define LUMP_VERTS_EXTRADATA 1 // extension of dvertex_t
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#define LUMP_CUBEMAPS 2 // cubemap description
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#define EXTRA_LUMPS 8 // g-cont. just for future expansions
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// texture flags
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#define TEX_SPECIAL BIT( 0 ) // sky or slime, no lightmap or 256 subdivision
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// ambient sound types
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enum
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{
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AMBIENT_WATER = 0, // waterfall
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AMBIENT_SKY, // wind
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AMBIENT_SLIME, // never used in quake
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AMBIENT_LAVA, // never used in quake
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NUM_AMBIENTS // automatic ambient sounds
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};
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//
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// BSP File Structures
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//
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typedef struct
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{
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int fileofs;
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int filelen;
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} dlump_t;
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/*
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typedef struct
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{
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int version;
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dlump_t lumps[HEADER_LUMPS];
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} dheader_t;
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*/
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typedef struct
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{
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int version;
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dlump_t lumps[HEADER_LUMPS_31];
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} dheader31_t;
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typedef struct
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{
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int id; // must be little endian XASH
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int version;
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dlump_t lumps[EXTRA_LUMPS];
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} dextrahdr_t;
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typedef struct
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{
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vec3_t mins;
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vec3_t maxs;
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vec3_t origin; // for sounds or lights
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int headnode[MAX_MAP_HULLS];
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int visleafs; // not including the solid leaf 0
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int firstface;
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int numfaces;
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} dmodel_t;
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typedef struct
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{
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int nummiptex;
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int dataofs[4]; // [nummiptex]
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} dmiptexlump_t;
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typedef struct
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{
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vec3_t point;
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} dvertex_t;
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typedef struct
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{
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vec3_t normal;
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float dist;
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int type; // PLANE_X - PLANE_ANYZ ?
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} dplane_t;
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typedef struct
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{
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int planenum;
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short children[2]; // negative numbers are -(leafs + 1), not nodes
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short mins[3]; // for sphere culling
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short maxs[3];
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word firstface;
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word numfaces; // counting both sides
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} dnode_t;
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// leaf 0 is the generic CONTENTS_SOLID leaf, used for all solid areas
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// all other leafs need visibility info
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typedef struct
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{
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int contents;
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int visofs; // -1 = no visibility info
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short mins[3]; // for frustum culling
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short maxs[3];
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word firstmarksurface;
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word nummarksurfaces;
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// automatic ambient sounds
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byte ambient_level[NUM_AMBIENTS]; // ambient sound level (0 - 255)
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} dleaf_t;
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typedef struct
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{
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int planenum;
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short children[2]; // negative numbers are contents
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} dclipnode_t;
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typedef struct
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{
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float vecs[2][4]; // texmatrix [s/t][xyz offset]
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int miptex;
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int flags;
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} dtexinfo_t;
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typedef word dmarkface_t; // leaf marksurfaces indexes
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typedef int dsurfedge_t; // map surfedges
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// NOTE: that edge 0 is never used, because negative edge nums
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// are used for counterclockwise use of the edge in a face
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typedef struct
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{
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word v[2]; // vertex numbers
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} dedge_t;
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typedef struct
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{
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word planenum;
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short side;
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int firstedge; // we must support > 64k edges
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short numedges;
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short texinfo;
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// lighting info
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byte styles[LM_STYLES];
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int lightofs; // start of [numstyles*surfsize] samples
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} dface_t;
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#endif//BSPFILE_H
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