2ca47176f9
The d*_t structs are from "d"isk, which means they could be unaligned. Packing them saves me from having to rewrite every single access to them. Change-Id: I6d5a9525fff368bf29bdb85cf1672fce02ce3396
325 lines
7.3 KiB
C
325 lines
7.3 KiB
C
/*
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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 the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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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_NODES 32767 // because negative shorts are contents
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#define MAX_MAP_CLIPNODES 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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#define BSPVERSION 29
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#define TOOLVERSION 2
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typedef struct
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{
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int fileofs, 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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// packed to avoid unaligned accesses on ARM
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typedef struct
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{
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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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} __attribute__((packed)) dmodel_t;
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typedef struct
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{
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int version;
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lump_t lumps[HEADER_LUMPS];
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} __attribute__((packed)) dheader_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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} __attribute__((packed)) dmiptexlump_t;
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#define MIPLEVELS 4
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typedef struct miptex_s
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{
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char name[16];
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unsigned width, height;
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unsigned offsets[MIPLEVELS]; // four mip maps stored
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} __attribute__((packed)) miptex_t;
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typedef struct
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{
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float point[3];
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} __attribute__((packed)) 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
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{
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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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} __attribute__((packed)) 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
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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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unsigned short firstface;
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unsigned short numfaces; // counting both sides
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} __attribute__((packed)) dnode_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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} __attribute__((packed)) dclipnode_t;
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typedef struct texinfo_s
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{
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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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} __attribute__((packed)) 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
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{
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unsigned short v[2]; // vertex numbers
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} __attribute__((packed)) dedge_t;
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#define MAXLIGHTMAPS 4
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typedef struct
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{
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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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} __attribute__((packed)) 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
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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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unsigned short firstmarksurface;
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unsigned short nummarksurfaces;
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byte ambient_level[NUM_AMBIENTS];
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} __attribute__((packed)) dleaf_t;
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//============================================================================
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#ifndef QUAKE_GAME
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#define ANGLE_UP -1
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#define ANGLE_DOWN -2
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// the utilities get to be lazy and just use large static arrays
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extern int nummodels;
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extern dmodel_t dmodels[MAX_MAP_MODELS];
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extern int visdatasize;
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extern byte dvisdata[MAX_MAP_VISIBILITY];
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extern int lightdatasize;
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extern byte dlightdata[MAX_MAP_LIGHTING];
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extern int texdatasize;
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extern byte dtexdata[MAX_MAP_MIPTEX]; // (dmiptexlump_t)
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extern int entdatasize;
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extern char dentdata[MAX_MAP_ENTSTRING];
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extern int numleafs;
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extern dleaf_t dleafs[MAX_MAP_LEAFS];
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extern int numplanes;
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extern dplane_t dplanes[MAX_MAP_PLANES];
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extern int numvertexes;
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extern dvertex_t dvertexes[MAX_MAP_VERTS];
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extern int numnodes;
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extern dnode_t dnodes[MAX_MAP_NODES];
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extern int numtexinfo;
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extern texinfo_t texinfo[MAX_MAP_TEXINFO];
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extern int numfaces;
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extern dface_t dfaces[MAX_MAP_FACES];
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extern int numclipnodes;
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extern dclipnode_t dclipnodes[MAX_MAP_CLIPNODES];
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extern int numedges;
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extern dedge_t dedges[MAX_MAP_EDGES];
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extern int nummarksurfaces;
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extern unsigned short dmarksurfaces[MAX_MAP_MARKSURFACES];
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extern int numsurfedges;
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extern int dsurfedges[MAX_MAP_SURFEDGES];
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void DecompressVis (byte *in, byte *decompressed);
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int CompressVis (byte *vis, byte *dest);
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void LoadBSPFile (char *filename);
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void WriteBSPFile (char *filename);
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void PrintBSPFileSizes (void);
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//===============
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typedef struct epair_s
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{
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struct epair_s *next;
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char *key;
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char *value;
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} __attribute__((packed)) epair_t;
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typedef struct
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{
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vec3_t origin;
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int firstbrush;
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int numbrushes;
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epair_t *epairs;
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} __attribute__((packed)) entity_t;
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extern int num_entities;
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extern entity_t entities[MAX_MAP_ENTITIES];
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void ParseEntities (void);
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void UnparseEntities (void);
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void SetKeyValue (entity_t *ent, char *key, char *value);
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char *ValueForKey (entity_t *ent, char *key);
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// will return "" if not present
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vec_t FloatForKey (entity_t *ent, char *key);
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void GetVectorForKey (entity_t *ent, char *key, vec3_t vec);
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epair_t *ParseEpair (void);
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#endif
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