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_IBSP_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_ADVERTISEMENTS 17
67 #define HEADER_LUMPS 18
76 bspLump_t lumps[ HEADER_LUMPS ];
91 static void CopyBrushSidesLump( ibspHeader_t *header )
99 numBSPBrushSides = GetLumpElements( (bspHeader_t*) header, LUMP_BRUSHSIDES, sizeof( *in ) );
102 in = GetLump( (bspHeader_t*) header, LUMP_BRUSHSIDES );
104 for( i = 0; i < numBSPBrushSides; i++ )
106 out->planeNum = in->planeNum;
107 out->shaderNum = in->shaderNum;
108 out->surfaceNum = -1;
115 static void AddBrushSidesLump( FILE *file, ibspHeader_t *header )
119 ibspBrushSide_t *buffer, *out;
122 /* allocate output buffer */
123 size = numBSPBrushSides * sizeof( *buffer );
124 buffer = safe_malloc( size );
125 memset( buffer, 0, size );
130 for( i = 0; i < numBSPBrushSides; i++ )
132 out->planeNum = in->planeNum;
133 out->shaderNum = in->shaderNum;
139 AddLump( file, (bspHeader_t*) header, LUMP_BRUSHSIDES, buffer, size );
148 typedef struct ibspDrawSurface_s
161 int lightmapX, lightmapY;
162 int lightmapWidth, lightmapHeight;
164 vec3_t lightmapOrigin;
165 vec3_t lightmapVecs[ 3 ];
173 static void CopyDrawSurfacesLump( ibspHeader_t *header )
176 ibspDrawSurface_t *in;
177 bspDrawSurface_t *out;
181 numBSPDrawSurfaces = GetLumpElements( (bspHeader_t*) header, LUMP_SURFACES, sizeof( *in ) );
182 SetDrawSurfaces( numBSPDrawSurfaces );
185 in = GetLump( (bspHeader_t*) header, LUMP_SURFACES );
186 out = bspDrawSurfaces;
187 for( i = 0; i < numBSPDrawSurfaces; i++ )
189 out->shaderNum = in->shaderNum;
190 out->fogNum = in->fogNum;
191 out->surfaceType = in->surfaceType;
192 out->firstVert = in->firstVert;
193 out->numVerts = in->numVerts;
194 out->firstIndex = in->firstIndex;
195 out->numIndexes = in->numIndexes;
197 out->lightmapStyles[ 0 ] = LS_NORMAL;
198 out->vertexStyles[ 0 ] = LS_NORMAL;
199 out->lightmapNum[ 0 ] = in->lightmapNum;
200 out->lightmapX[ 0 ] = in->lightmapX;
201 out->lightmapY[ 0 ] = in->lightmapY;
203 for( j = 1; j < MAX_LIGHTMAPS; j++ )
205 out->lightmapStyles[ j ] = LS_NONE;
206 out->vertexStyles[ j ] = LS_NONE;
207 out->lightmapNum[ j ] = -3;
208 out->lightmapX[ j ] = 0;
209 out->lightmapY[ j ] = 0;
212 out->lightmapWidth = in->lightmapWidth;
213 out->lightmapHeight = in->lightmapHeight;
215 VectorCopy( in->lightmapOrigin, out->lightmapOrigin );
216 VectorCopy( in->lightmapVecs[ 0 ], out->lightmapVecs[ 0 ] );
217 VectorCopy( in->lightmapVecs[ 1 ], out->lightmapVecs[ 1 ] );
218 VectorCopy( in->lightmapVecs[ 2 ], out->lightmapVecs[ 2 ] );
220 out->patchWidth = in->patchWidth;
221 out->patchHeight = in->patchHeight;
229 static void AddDrawSurfacesLump( FILE *file, ibspHeader_t *header )
232 bspDrawSurface_t *in;
233 ibspDrawSurface_t *buffer, *out;
236 /* allocate output buffer */
237 size = numBSPDrawSurfaces * sizeof( *buffer );
238 buffer = safe_malloc( size );
239 memset( buffer, 0, size );
242 in = bspDrawSurfaces;
244 for( i = 0; i < numBSPDrawSurfaces; i++ )
246 out->shaderNum = in->shaderNum;
247 out->fogNum = in->fogNum;
248 out->surfaceType = in->surfaceType;
249 out->firstVert = in->firstVert;
250 out->numVerts = in->numVerts;
251 out->firstIndex = in->firstIndex;
252 out->numIndexes = in->numIndexes;
254 out->lightmapNum = in->lightmapNum[ 0 ];
255 out->lightmapX = in->lightmapX[ 0 ];
256 out->lightmapY = in->lightmapY[ 0 ];
257 out->lightmapWidth = in->lightmapWidth;
258 out->lightmapHeight = in->lightmapHeight;
260 VectorCopy( in->lightmapOrigin, out->lightmapOrigin );
261 VectorCopy( in->lightmapVecs[ 0 ], out->lightmapVecs[ 0 ] );
262 VectorCopy( in->lightmapVecs[ 1 ], out->lightmapVecs[ 1 ] );
263 VectorCopy( in->lightmapVecs[ 2 ], out->lightmapVecs[ 2 ] );
265 out->patchWidth = in->patchWidth;
266 out->patchHeight = in->patchHeight;
273 AddLump( file, (bspHeader_t*) header, LUMP_SURFACES, buffer, size );
293 static void CopyDrawVertsLump( ibspHeader_t *header )
301 numBSPDrawVerts = GetLumpElements( (bspHeader_t*) header, LUMP_DRAWVERTS, sizeof( *in ) );
302 SetDrawVerts( numBSPDrawVerts );
305 in = GetLump( (bspHeader_t*) header, LUMP_DRAWVERTS );
307 for( i = 0; i < numBSPDrawVerts; i++ )
309 VectorCopy( in->xyz, out->xyz );
310 out->st[ 0 ] = in->st[ 0 ];
311 out->st[ 1 ] = in->st[ 1 ];
313 out->lightmap[ 0 ][ 0 ] = in->lightmap[ 0 ];
314 out->lightmap[ 0 ][ 1 ] = in->lightmap[ 1 ];
316 VectorCopy( in->normal, out->normal );
318 out->color[ 0 ][ 0 ] = in->color[ 0 ];
319 out->color[ 0 ][ 1 ] = in->color[ 1 ];
320 out->color[ 0 ][ 2 ] = in->color[ 2 ];
321 out->color[ 0 ][ 3 ] = in->color[ 3 ];
329 static void AddDrawVertsLump( FILE *file, ibspHeader_t *header )
333 ibspDrawVert_t *buffer, *out;
336 /* allocate output buffer */
337 size = numBSPDrawVerts * sizeof( *buffer );
338 buffer = safe_malloc( size );
339 memset( buffer, 0, size );
344 for( i = 0; i < numBSPDrawVerts; i++ )
346 VectorCopy( in->xyz, out->xyz );
347 out->st[ 0 ] = in->st[ 0 ];
348 out->st[ 1 ] = in->st[ 1 ];
350 out->lightmap[ 0 ] = in->lightmap[ 0 ][ 0 ];
351 out->lightmap[ 1 ] = in->lightmap[ 0 ][ 1 ];
353 VectorCopy( in->normal, out->normal );
355 out->color[ 0 ] = in->color[ 0 ][ 0 ];
356 out->color[ 1 ] = in->color[ 0 ][ 1 ];
357 out->color[ 2 ] = in->color[ 0 ][ 2 ];
358 out->color[ 3 ] = in->color[ 0 ][ 3 ];
365 AddLump( file, (bspHeader_t*) header, LUMP_DRAWVERTS, buffer, size );
383 static void CopyLightGridLumps( ibspHeader_t *header )
391 numBSPGridPoints = GetLumpElements( (bspHeader_t*) header, LUMP_LIGHTGRID, sizeof( *in ) );
393 /* allocate buffer */
394 bspGridPoints = safe_malloc( numBSPGridPoints * sizeof( *bspGridPoints ) );
395 memset( bspGridPoints, 0, numBSPGridPoints * sizeof( *bspGridPoints ) );
398 in = GetLump( (bspHeader_t*) header, LUMP_LIGHTGRID );
400 for( i = 0; i < numBSPGridPoints; i++ )
402 for( j = 0; j < MAX_LIGHTMAPS; j++ )
404 VectorCopy( in->ambient, out->ambient[ j ] );
405 VectorCopy( in->directed, out->directed[ j ] );
406 out->styles[ j ] = LS_NONE;
409 out->styles[ 0 ] = LS_NORMAL;
411 out->latLong[ 0 ] = in->latLong[ 0 ];
412 out->latLong[ 1 ] = in->latLong[ 1 ];
420 static void AddLightGridLumps( FILE *file, ibspHeader_t *header )
424 ibspGridPoint_t *buffer, *out;
428 if( bspGridPoints == NULL )
431 /* allocate temporary buffer */
432 buffer = safe_malloc( numBSPGridPoints * sizeof( *out ) );
437 for( i = 0; i < numBSPGridPoints; i++ )
439 VectorCopy( in->ambient[ 0 ], out->ambient );
440 VectorCopy( in->directed[ 0 ], out->directed );
442 out->latLong[ 0 ] = in->latLong[ 0 ];
443 out->latLong[ 1 ] = in->latLong[ 1 ];
450 AddLump( file, (bspHeader_t*) header, LUMP_LIGHTGRID, buffer, (numBSPGridPoints * sizeof( *out )) );
452 /* free buffer (ydnar 2002-10-22: [bug 641] thanks Rap70r! */
458 loads a quake 3 bsp file into memory
461 void LoadIBSPFile( const char *filename )
463 ibspHeader_t *header;
466 /* load the file header */
467 LoadFile( filename, (void**) &header );
469 /* swap the header (except the first 4 bytes) */
470 SwapBlock( (int*) ((byte*) header + sizeof( int )), sizeof( *header ) - sizeof( int ) );
472 /* make sure it matches the format we're trying to load */
473 if( force == qfalse && *((int*) header->ident) != *((int*) game->bspIdent) )
474 Error( "%s is not a %s file", filename, game->bspIdent );
475 if( force == qfalse && header->version != game->bspVersion )
476 Error( "%s is version %d, not %d", filename, header->version, game->bspVersion );
478 /* load/convert lumps */
479 numBSPShaders = CopyLump( (bspHeader_t*) header, LUMP_SHADERS, bspShaders, sizeof( bspShader_t ) );
481 numBSPModels = CopyLump( (bspHeader_t*) header, LUMP_MODELS, bspModels, sizeof( bspModel_t ) );
483 numBSPPlanes = CopyLump( (bspHeader_t*) header, LUMP_PLANES, bspPlanes, sizeof( bspPlane_t ) );
485 numBSPLeafs = CopyLump( (bspHeader_t*) header, LUMP_LEAFS, bspLeafs, sizeof( bspLeaf_t ) );
487 numBSPNodes = CopyLump( (bspHeader_t*) header, LUMP_NODES, bspNodes, sizeof( bspNode_t ) );
489 numBSPLeafSurfaces = CopyLump( (bspHeader_t*) header, LUMP_LEAFSURFACES, bspLeafSurfaces, sizeof( bspLeafSurfaces[ 0 ] ) );
491 numBSPLeafBrushes = CopyLump( (bspHeader_t*) header, LUMP_LEAFBRUSHES, bspLeafBrushes, sizeof( bspLeafBrushes[ 0 ] ) );
493 numBSPBrushes = CopyLump( (bspHeader_t*) header, LUMP_BRUSHES, bspBrushes, sizeof( bspBrush_t ) );
495 CopyBrushSidesLump( header );
497 CopyDrawVertsLump( header );
499 CopyDrawSurfacesLump( header );
501 numBSPFogs = CopyLump( (bspHeader_t*) header, LUMP_FOGS, bspFogs, sizeof( bspFog_t ) );
503 numBSPDrawIndexes = CopyLump( (bspHeader_t*) header, LUMP_DRAWINDEXES, bspDrawIndexes, sizeof( bspDrawIndexes[ 0 ] ) );
505 numBSPVisBytes = CopyLump( (bspHeader_t*) header, LUMP_VISIBILITY, bspVisBytes, 1 );
507 numBSPLightBytes = GetLumpElements( (bspHeader_t*) header, LUMP_LIGHTMAPS, 1 );
508 bspLightBytes = safe_malloc( numBSPLightBytes );
509 CopyLump( (bspHeader_t*) header, LUMP_LIGHTMAPS, bspLightBytes, 1 );
511 bspEntDataSize = CopyLump( (bspHeader_t*) header, LUMP_ENTITIES, bspEntData, 1);
513 CopyLightGridLumps( header );
516 numBSPAds = CopyLump( (bspHeader_t*) header, LUMP_ADVERTISEMENTS, bspAds, sizeof( bspAdvertisement_t ) );
518 /* free the file buffer */
526 writes an id bsp file
529 void WriteIBSPFile( const char *filename )
531 ibspHeader_t outheader, *header;
540 memset( header, 0, sizeof( *header ) );
545 *((int*) (bspHeader_t*) header->ident) = *((int*) game->bspIdent);
546 header->version = LittleLong( game->bspVersion );
548 /* write initial header */
549 file = SafeOpenWrite( filename );
550 SafeWrite( file, (bspHeader_t*) header, sizeof( *header ) ); /* overwritten later */
552 /* add marker lump */
554 sprintf( marker, "I LOVE MY Q3MAP2 %s on %s)", Q3MAP_VERSION, asctime( localtime( &t ) ) );
555 AddLump( file, (bspHeader_t*) header, 0, marker, strlen( marker ) + 1 );
558 AddLump( file, (bspHeader_t*) header, LUMP_SHADERS, bspShaders, numBSPShaders * sizeof( bspShader_t ) );
559 AddLump( file, (bspHeader_t*) header, LUMP_PLANES, bspPlanes, numBSPPlanes * sizeof( bspPlane_t ) );
560 AddLump( file, (bspHeader_t*) header, LUMP_LEAFS, bspLeafs, numBSPLeafs * sizeof( bspLeaf_t ) );
561 AddLump( file, (bspHeader_t*) header, LUMP_NODES, bspNodes, numBSPNodes * sizeof( bspNode_t ) );
562 AddLump( file, (bspHeader_t*) header, LUMP_BRUSHES, bspBrushes, numBSPBrushes*sizeof( bspBrush_t ) );
563 AddBrushSidesLump( file, header );
564 AddLump( file, (bspHeader_t*) header, LUMP_LEAFSURFACES, bspLeafSurfaces, numBSPLeafSurfaces * sizeof( bspLeafSurfaces[ 0 ] ) );
565 AddLump( file, (bspHeader_t*) header, LUMP_LEAFBRUSHES, bspLeafBrushes, numBSPLeafBrushes * sizeof( bspLeafBrushes[ 0 ] ) );
566 AddLump( file, (bspHeader_t*) header, LUMP_MODELS, bspModels, numBSPModels * sizeof( bspModel_t ) );
567 AddDrawVertsLump( file, header );
568 AddDrawSurfacesLump( file, header );
569 AddLump( file, (bspHeader_t*) header, LUMP_VISIBILITY, bspVisBytes, numBSPVisBytes );
570 AddLump( file, (bspHeader_t*) header, LUMP_LIGHTMAPS, bspLightBytes, numBSPLightBytes );
571 AddLightGridLumps( file, header );
572 AddLump( file, (bspHeader_t*) header, LUMP_ENTITIES, bspEntData, bspEntDataSize );
573 AddLump( file, (bspHeader_t*) header, LUMP_FOGS, bspFogs, numBSPFogs * sizeof( bspFog_t ) );
574 AddLump( file, (bspHeader_t*) header, LUMP_DRAWINDEXES, bspDrawIndexes, numBSPDrawIndexes * sizeof( bspDrawIndexes[ 0 ] ) );
577 AddLump( file, (bspHeader_t*) header, LUMP_ADVERTISEMENTS, bspAds, numBSPAds * sizeof( bspAdvertisement_t ) );
580 size = ftell( file );
581 Sys_Printf( "Wrote %.1f MB (%d bytes)\n", (float) size / (1024 * 1024), size );
583 /* write the completed header */
584 fseek( file, 0, SEEK_SET );
585 SafeWrite( file, header, sizeof( *header ) );