2 Copyright (C) 1999-2007 id Software, Inc. and contributors.
3 For a list of contributors, see the accompanying CONTRIBUTORS file.
5 This file is part of GtkRadiant.
7 GtkRadiant is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 GtkRadiant is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GtkRadiant; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 ----------------------------------------------------------------------------------
23 This code has been altered significantly from its original form, to support
24 several games based on the Quake III Arena engine, in the form of "Q3Map2."
26 ------------------------------------------------------------------------------- */
31 #define BSPFILE_RBSP_C
41 /* -------------------------------------------------------------------------------
43 this file handles translating the bsp file format used by quake 3, rtcw, and ef
44 into the abstracted bsp file used by q3map2.
46 ------------------------------------------------------------------------------- */
49 #define LUMP_ENTITIES 0
50 #define LUMP_SHADERS 1
54 #define LUMP_LEAFSURFACES 5
55 #define LUMP_LEAFBRUSHES 6
57 #define LUMP_BRUSHES 8
58 #define LUMP_BRUSHSIDES 9
59 #define LUMP_DRAWVERTS 10
60 #define LUMP_DRAWINDEXES 11
62 #define LUMP_SURFACES 13
63 #define LUMP_LIGHTMAPS 14
64 #define LUMP_LIGHTGRID 15
65 #define LUMP_VISIBILITY 16
66 #define LUMP_LIGHTARRAY 17
67 #define HEADER_LUMPS 18
76 bspLump_t lumps[ HEADER_LUMPS ];
83 #define MAX_MAP_GRID 0xffff
84 #define MAX_MAP_GRIDARRAY 0x100000
88 static void CopyLightGridLumps( rbspHeader_t *header )
91 unsigned short *inArray;
92 bspGridPoint_t *in, *out;
96 numBSPGridPoints = GetLumpElements( (bspHeader_t*) header, LUMP_LIGHTARRAY, sizeof( *inArray ) );
99 bspGridPoints = safe_malloc( numBSPGridPoints * sizeof( *bspGridPoints ) );
100 memset( bspGridPoints, 0, numBSPGridPoints * sizeof( *bspGridPoints ) );
103 inArray = GetLump( (bspHeader_t*) header, LUMP_LIGHTARRAY );
104 in = GetLump( (bspHeader_t*) header, LUMP_LIGHTGRID );
106 for( i = 0; i < numBSPGridPoints; i++ )
108 memcpy( out, &in[ *inArray ], sizeof( *in ) );
115 static void AddLightGridLumps( FILE *file, rbspHeader_t *header )
118 int numGridPoints, maxGridPoints;
119 bspGridPoint_t *gridPoints, *in, *out;
121 unsigned short *gridArray;
125 /* allocate temporary buffers */
126 maxGridPoints = (numBSPGridPoints < MAX_MAP_GRID) ? numBSPGridPoints : MAX_MAP_GRID;
127 gridPoints = safe_malloc( maxGridPoints * sizeof( *gridPoints ) );
128 gridArray = safe_malloc( numBSPGridPoints * sizeof( *gridArray ) );
132 numGridArray = numBSPGridPoints;
134 /* for each bsp grid point, find an approximate twin */
135 Sys_Printf( "Storing lightgrid: %d points\n", numBSPGridPoints );
136 for( i = 0; i < numGridArray; i++ )
139 in = &bspGridPoints[ i ];
141 /* walk existing list */
142 for( j = 0; j < numGridPoints; j++ )
145 out = &gridPoints[ j ];
148 if( *((unsigned int*) in->styles) != *((unsigned int*) out->styles) )
151 /* compare direction */
152 d = abs( in->latLong[ 0 ] - out->latLong[ 0 ] );
153 if( d < (255 - LG_EPSILON) && d > LG_EPSILON )
155 d = abs( in->latLong[ 1 ] - out->latLong[ 1 ] );
156 if( d < 255 - LG_EPSILON && d > LG_EPSILON )
161 for( k = 0; (k < MAX_LIGHTMAPS && bad == qfalse); k++ )
163 for( c = 0; c < 3; c++ )
165 if( abs( (int) in->ambient[ k ][ c ] - (int) out->ambient[ k ][ c ]) > LG_EPSILON ||
166 abs( (int) in->directed[ k ][ c ] - (int) out->directed[ k ][ c ]) > LG_EPSILON )
178 /* this sample is ok */
182 /* set sample index */
183 gridArray[ i ] = (unsigned short) j;
185 /* if no sample found, add a new one */
186 if( j >= numGridPoints && numGridPoints < maxGridPoints )
188 out = &gridPoints[ numGridPoints++ ];
189 memcpy( out, in, sizeof( *in ) );
194 for( i = 0; i < numGridArray; i++ )
195 gridArray[ i ] = LittleShort( gridArray[ i ] );
198 AddLump( file, (bspHeader_t*) header, LUMP_LIGHTGRID, gridPoints, (numGridPoints * sizeof( *gridPoints )) );
199 AddLump( file, (bspHeader_t*) header, LUMP_LIGHTARRAY, gridArray, (numGridArray * sizeof( *gridArray )) );
210 loads a raven bsp file into memory
213 void LoadRBSPFile( const char *filename )
215 rbspHeader_t *header;
218 /* load the file header */
219 LoadFile( filename, (void**) &header );
221 /* swap the header (except the first 4 bytes) */
222 SwapBlock( (int*) ((byte*) header + sizeof( int )), sizeof( *header ) - sizeof( int ) );
224 /* make sure it matches the format we're trying to load */
225 if( force == qfalse && *((int*) header->ident) != *((int*) game->bspIdent) )
226 Error( "%s is not a %s file", filename, game->bspIdent );
227 if( force == qfalse && header->version != game->bspVersion )
228 Error( "%s is version %d, not %d", filename, header->version, game->bspVersion );
230 /* load/convert lumps */
231 numBSPShaders = CopyLump( (bspHeader_t*) header, LUMP_SHADERS, bspShaders, sizeof( bspShader_t ) );
233 numBSPModels = CopyLump( (bspHeader_t*) header, LUMP_MODELS, bspModels, sizeof( bspModel_t ) );
235 numBSPPlanes = CopyLump( (bspHeader_t*) header, LUMP_PLANES, bspPlanes, sizeof( bspPlane_t ) );
237 numBSPLeafs = CopyLump( (bspHeader_t*) header, LUMP_LEAFS, bspLeafs, sizeof( bspLeaf_t ) );
239 numBSPNodes = CopyLump( (bspHeader_t*) header, LUMP_NODES, bspNodes, sizeof( bspNode_t ) );
241 numBSPLeafSurfaces = CopyLump( (bspHeader_t*) header, LUMP_LEAFSURFACES, bspLeafSurfaces, sizeof( bspLeafSurfaces[ 0 ] ) );
243 numBSPLeafBrushes = CopyLump( (bspHeader_t*) header, LUMP_LEAFBRUSHES, bspLeafBrushes, sizeof( bspLeafBrushes[ 0 ] ) );
245 numBSPBrushes = CopyLump( (bspHeader_t*) header, LUMP_BRUSHES, bspBrushes, sizeof( bspBrush_t ) );
247 numBSPBrushSides = CopyLump( (bspHeader_t*) header, LUMP_BRUSHSIDES, bspBrushSides, sizeof( bspBrushSide_t ) );
249 numBSPDrawVerts = GetLumpElements( (bspHeader_t*) header, LUMP_DRAWVERTS, sizeof( bspDrawVerts[ 0 ] ) );
250 SetDrawVerts( numBSPDrawVerts );
251 CopyLump( (bspHeader_t*) header, LUMP_DRAWVERTS, bspDrawVerts, sizeof( bspDrawVerts[ 0 ] ) );
253 numBSPDrawSurfaces = GetLumpElements( (bspHeader_t*) header, LUMP_SURFACES, sizeof( bspDrawSurfaces[ 0 ] ) );
254 SetDrawSurfaces( numBSPDrawSurfaces );
255 CopyLump( (bspHeader_t*) header, LUMP_SURFACES, bspDrawSurfaces, sizeof( bspDrawSurfaces[ 0 ] ) );
257 numBSPFogs = CopyLump( (bspHeader_t*) header, LUMP_FOGS, bspFogs, sizeof( bspFogs[ 0 ] ) );
259 numBSPDrawIndexes = CopyLump( (bspHeader_t*) header, LUMP_DRAWINDEXES, bspDrawIndexes, sizeof( bspDrawIndexes[ 0 ] ) );
261 numBSPVisBytes = CopyLump( (bspHeader_t*) header, LUMP_VISIBILITY, bspVisBytes, 1 );
263 numBSPLightBytes = GetLumpElements( (bspHeader_t*) header, LUMP_LIGHTMAPS, 1 );
264 bspLightBytes = safe_malloc( numBSPLightBytes );
265 CopyLump( (bspHeader_t*) header, LUMP_LIGHTMAPS, bspLightBytes, 1 );
267 bspEntDataSize = CopyLump( (bspHeader_t*) header, LUMP_ENTITIES, bspEntData, 1);
269 CopyLightGridLumps( header );
271 /* free the file buffer */
279 writes a raven bsp file
282 void WriteRBSPFile( const char *filename )
284 rbspHeader_t outheader, *header;
293 memset( header, 0, sizeof( *header ) );
298 *((int*) (bspHeader_t*) header->ident) = *((int*) game->bspIdent);
299 header->version = LittleLong( game->bspVersion );
301 /* write initial header */
302 file = SafeOpenWrite( filename );
303 SafeWrite( file, (bspHeader_t*) header, sizeof( *header ) ); /* overwritten later */
305 /* add marker lump */
307 sprintf( marker, "I LOVE MY Q3MAP2 %s on %s)", Q3MAP_VERSION, asctime( localtime( &t ) ) );
308 AddLump( file, (bspHeader_t*) header, 0, marker, strlen( marker ) + 1 );
311 AddLump( file, (bspHeader_t*) header, LUMP_SHADERS, bspShaders, numBSPShaders * sizeof( bspShader_t ) );
312 AddLump( file, (bspHeader_t*) header, LUMP_PLANES, bspPlanes, numBSPPlanes * sizeof( bspPlane_t ) );
313 AddLump( file, (bspHeader_t*) header, LUMP_LEAFS, bspLeafs, numBSPLeafs * sizeof( bspLeaf_t ) );
314 AddLump( file, (bspHeader_t*) header, LUMP_NODES, bspNodes, numBSPNodes * sizeof( bspNode_t ) );
315 AddLump( file, (bspHeader_t*) header, LUMP_BRUSHES, bspBrushes, numBSPBrushes*sizeof( bspBrush_t ) );
316 AddLump( file, (bspHeader_t*) header, LUMP_BRUSHSIDES, bspBrushSides, numBSPBrushSides * sizeof( bspBrushSides[ 0 ] ) );
317 AddLump( file, (bspHeader_t*) header, LUMP_LEAFSURFACES, bspLeafSurfaces, numBSPLeafSurfaces * sizeof( bspLeafSurfaces[ 0 ] ) );
318 AddLump( file, (bspHeader_t*) header, LUMP_LEAFBRUSHES, bspLeafBrushes, numBSPLeafBrushes * sizeof( bspLeafBrushes[ 0 ] ) );
319 AddLump( file, (bspHeader_t*) header, LUMP_MODELS, bspModels, numBSPModels * sizeof( bspModel_t ) );
320 AddLump( file, (bspHeader_t*) header, LUMP_DRAWVERTS, bspDrawVerts, numBSPDrawVerts * sizeof( bspDrawVerts[ 0 ] ) );
321 AddLump( file, (bspHeader_t*) header, LUMP_SURFACES, bspDrawSurfaces, numBSPDrawSurfaces * sizeof( bspDrawSurfaces[ 0 ] ) );
322 AddLump( file, (bspHeader_t*) header, LUMP_VISIBILITY, bspVisBytes, numBSPVisBytes );
323 AddLump( file, (bspHeader_t*) header, LUMP_LIGHTMAPS, bspLightBytes, numBSPLightBytes );
324 AddLightGridLumps( file, header );
325 AddLump( file, (bspHeader_t*) header, LUMP_ENTITIES, bspEntData, bspEntDataSize );
326 AddLump( file, (bspHeader_t*) header, LUMP_FOGS, bspFogs, numBSPFogs * sizeof( bspFog_t ) );
327 AddLump( file, (bspHeader_t*) header, LUMP_DRAWINDEXES, bspDrawIndexes, numBSPDrawIndexes * sizeof( bspDrawIndexes[ 0 ] ) );
330 size = ftell( file );
331 Sys_Printf( "Wrote %.1f MB (%d bytes)\n", (float) size / (1024 * 1024), size );
333 /* write the completed header */
334 fseek( file, 0, SEEK_SET );
335 SafeWrite( file, header, sizeof( *header ) );