mirror of
https://git.code.sf.net/p/quake/quakeforge
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298 lines
7.1 KiB
C
298 lines
7.1 KiB
C
/*
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bspfile.h
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BSP (Binary Space Partitioning) file definitions
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (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.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#ifndef __bspfile_h_
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#define __bspfile_h_
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#include "QF/qtypes.h"
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#include "QF/quakeio.h"
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// upper design bounds
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#define MAX_MAP_HULLS 4
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#define MAX_MAP_MODELS 256
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#define MAX_MAP_BRUSHES 4096
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#define MAX_MAP_ENTITIES 1024
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#define MAX_MAP_ENTSTRING 65536
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#define MAX_MAP_PLANES 32767
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//#define MAX_MAP_PLANES 8192
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#define MAX_MAP_NODES 32767 // because negative shorts are contents
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#define MAX_MAP_CLIPNODES 32767 //
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#define MAX_MAP_LEAFS 32767 //
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//#define MAX_MAP_LEAFS 8192
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#define MAX_MAP_VERTS 65535
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#define MAX_MAP_FACES 65535
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#define MAX_MAP_MARKSURFACES 65535
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#define MAX_MAP_TEXINFO 4096
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#define MAX_MAP_EDGES 256000
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#define MAX_MAP_SURFEDGES 512000
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#define MAX_MAP_TEXTURES 512
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#define MAX_MAP_MIPTEX 0x200000
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#define MAX_MAP_LIGHTING 0x100000
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#define MAX_MAP_VISIBILITY 0x100000
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#define MAX_MAP_PORTALS 65536
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// key / value pair sizes
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#define MAX_KEY 32
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#define MAX_VALUE 1024
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//=============================================================================
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// little-endian PACK
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#define IDPAKHEADER (('K'<<24)+('C'<<16)+('A'<<8)+'P')
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#define BSPVERSION 29
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#define Q2BSPVERSION 38
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#define TOOLVERSION 2
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typedef struct lump_s {
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int fileofs;
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int filelen;
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} lump_t;
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#define LUMP_ENTITIES 0
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#define LUMP_PLANES 1
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#define LUMP_TEXTURES 2
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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
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#define HEADER_LUMPS 15
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typedef struct dmodel_s {
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float mins[3], maxs[3];
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float origin[3];
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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, numfaces;
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} dmodel_t;
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typedef struct dheader_s {
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int version;
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lump_t lumps[HEADER_LUMPS];
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} dheader_t;
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typedef struct dmiptexlump_s {
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int nummiptex;
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int dataofs[4]; // [nummiptex]
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} dmiptexlump_t;
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#define MIPLEVELS 4
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typedef struct miptex_s {
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char name[16];
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unsigned int width, height;
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unsigned int offsets[MIPLEVELS]; // four mip maps stored
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} miptex_t;
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typedef struct dvertex_s {
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float point[3];
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} dvertex_t;
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// 0-2 are axial planes
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#define PLANE_X 0
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#define PLANE_Y 1
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#define PLANE_Z 2
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// 3-5 are non-axial planes snapped to the nearest
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#define PLANE_ANYX 3
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#define PLANE_ANYY 4
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#define PLANE_ANYZ 5
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typedef struct dplane_s {
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float normal[3];
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float dist;
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int type; // PLANE_X - PLANE_ANYZ ?remove? trivial to regenerate
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} dplane_t;
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#define CONTENTS_EMPTY -1
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#define CONTENTS_SOLID -2
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#define CONTENTS_WATER -3
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#define CONTENTS_SLIME -4
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#define CONTENTS_LAVA -5
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#define CONTENTS_SKY -6
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#define CONTENTS_ORIGIN -7 // removed at csg time
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#define CONTENTS_CLIP -8 // changed to contents_solid
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#define CONTENTS_CURRENT_0 -9
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#define CONTENTS_CURRENT_90 -10
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#define CONTENTS_CURRENT_180 -11
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#define CONTENTS_CURRENT_270 -12
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#define CONTENTS_CURRENT_UP -13
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#define CONTENTS_CURRENT_DOWN -14
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// !!! if this is changed, it must be changed in asm_i386.h too !!!
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typedef struct dnode_s {
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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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unsigned short firstface;
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unsigned short numfaces; // counting both sides
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} dnode_t;
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typedef struct dclipnode_s {
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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 texinfo_s {
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float vecs[2][4]; // [s/t][xyz offset]
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int miptex;
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int flags;
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} texinfo_t;
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#define TEX_SPECIAL 1 // sky or slime, no lightmap or 256 subdivision
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// note that edge 0 is never used, because negative edge nums are used for
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// counterclockwise use of the edge in a face
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typedef struct dedge_s {
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unsigned short v[2]; // vertex numbers
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} dedge_t;
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#define MAXLIGHTMAPS 4
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typedef struct dface_s {
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short 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[MAXLIGHTMAPS];
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int lightofs; // start of [numstyles*surfsize] samples
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} dface_t;
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#define AMBIENT_WATER 0
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#define AMBIENT_SKY 1
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#define AMBIENT_SLIME 2
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#define AMBIENT_LAVA 3
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#define NUM_AMBIENTS 4 // automatic ambient sounds
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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 dleaf_s {
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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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unsigned short firstmarksurface;
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unsigned short nummarksurfaces;
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byte ambient_level[NUM_AMBIENTS];
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} dleaf_t;
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//============================================================================
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typedef struct bsp_s {
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int nummodels;
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dmodel_t *models;
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int visdatasize;
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byte *visdata;
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int lightdatasize;
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byte *lightdata;
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int texdatasize;
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byte *texdata; // (dmiptexlump_t)
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int entdatasize;
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char *entdata;
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int numleafs;
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dleaf_t *leafs;
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int numplanes;
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dplane_t *planes;
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int numvertexes;
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dvertex_t *vertexes;
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int numnodes;
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dnode_t *nodes;
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int numtexinfo;
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texinfo_t *texinfo;
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int numfaces;
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dface_t *faces;
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int numclipnodes;
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dclipnode_t *clipnodes;
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int numedges;
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dedge_t *edges;
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int nummarksurfaces;
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unsigned short *marksurfaces;
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int numsurfedges;
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int *surfedges;
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} bsp_t;
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bsp_t *LoadBSPMem (void *mem, int size);
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bsp_t *LoadBSPFile (QFile *file, int size);
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void WriteBSPFile (bsp_t *bsp, QFile *file);
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bsp_t *BSP_New (void);
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void BSP_AddPlane (bsp_t *bsp, dplane_t *plane);
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void BSP_AddLeaf (bsp_t *bsp, dleaf_t *leaf);
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void BSP_AddVertex (bsp_t *bsp, dvertex_t *vertex);
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void BSP_AddNode (bsp_t *bsp, dnode_t *node);
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void BSP_AddTexinfo (bsp_t *bsp, texinfo_t *texinfo);
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void BSP_AddFace (bsp_t *bsp, dface_t *face);
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void BSP_AddClipnode (bsp_t *bsp, dclipnode_t *clipnode);
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void BSP_AddMarkSurface (bsp_t *bsp, unsigned short marksurface);
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void BSP_AddSurfEdge (bsp_t *bsp, int surfedge);
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void BSP_AddEdge (bsp_t *bsp, dedge_t *edge);
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void BSP_AddModel (bsp_t *bsp, dmodel_t *model);
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void BSP_AddLighting (bsp_t *bsp, byte *lightdata, int lightdatasize);
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void BSP_AddVisibility (bsp_t *bsp, byte *visdata, int visdatasize);
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void BSP_AddEntities (bsp_t *bsp, char *entdata, int entdatasize);
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void BSP_AddTextures (bsp_t *bsp, byte *texdata, int texdatasize);
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#endif // __bspfile_h_
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