mirror of
https://github.com/UberGames/GtkRadiant.git
synced 2024-11-15 00:42:03 +00:00
588 lines
15 KiB
C
588 lines
15 KiB
C
/* -------------------------------------------------------------------------------
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Copyright (C) 1999-2007 id Software, Inc. and contributors.
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For a list of contributors, see the accompanying CONTRIBUTORS file.
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This file is part of GtkRadiant.
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GtkRadiant 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 2 of the License, or
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(at your option) any later version.
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GtkRadiant 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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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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----------------------------------------------------------------------------------
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This code has been altered significantly from its original form, to support
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several games based on the Quake III Arena engine, in the form of "Q3Map2."
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------------------------------------------------------------------------------- */
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/* marker */
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#define BSPFILE_IBSP_C
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/* dependencies */
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#include "q3map2.h"
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/* -------------------------------------------------------------------------------
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this file handles translating the bsp file format used by quake 3, rtcw, and ef
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into the abstracted bsp file used by q3map2.
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------------------------------------------------------------------------------- */
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/* constants */
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#define LUMP_ENTITIES 0
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#define LUMP_SHADERS 1
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#define LUMP_PLANES 2
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#define LUMP_NODES 3
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#define LUMP_LEAFS 4
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#define LUMP_LEAFSURFACES 5
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#define LUMP_LEAFBRUSHES 6
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#define LUMP_MODELS 7
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#define LUMP_BRUSHES 8
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#define LUMP_BRUSHSIDES 9
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#define LUMP_DRAWVERTS 10
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#define LUMP_DRAWINDEXES 11
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#define LUMP_FOGS 12
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#define LUMP_SURFACES 13
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#define LUMP_LIGHTMAPS 14
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#define LUMP_LIGHTGRID 15
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#define LUMP_VISIBILITY 16
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#define LUMP_ADVERTISEMENTS 17
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#define HEADER_LUMPS 18
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/* types */
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typedef struct
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{
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char ident[ 4 ];
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int version;
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bspLump_t lumps[ HEADER_LUMPS ];
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}
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ibspHeader_t;
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/* brush sides */
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typedef struct
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{
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int planeNum;
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int shaderNum;
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}
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ibspBrushSide_t;
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static void CopyBrushSidesLump( ibspHeader_t *header ){
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int i;
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ibspBrushSide_t *in;
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bspBrushSide_t *out;
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/* get count */
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numBSPBrushSides = GetLumpElements( (bspHeader_t*) header, LUMP_BRUSHSIDES, sizeof( *in ) );
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/* copy */
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in = GetLump( (bspHeader_t*) header, LUMP_BRUSHSIDES );
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out = bspBrushSides;
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for ( i = 0; i < numBSPBrushSides; i++ )
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{
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out->planeNum = in->planeNum;
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out->shaderNum = in->shaderNum;
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out->surfaceNum = -1;
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in++;
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out++;
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}
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}
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static void AddBrushSidesLump( FILE *file, ibspHeader_t *header ){
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int i, size;
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bspBrushSide_t *in;
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ibspBrushSide_t *buffer, *out;
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/* allocate output buffer */
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size = numBSPBrushSides * sizeof( *buffer );
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buffer = safe_malloc( size );
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memset( buffer, 0, size );
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/* convert */
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in = bspBrushSides;
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out = buffer;
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for ( i = 0; i < numBSPBrushSides; i++ )
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{
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out->planeNum = in->planeNum;
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out->shaderNum = in->shaderNum;
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in++;
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out++;
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}
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/* write lump */
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AddLump( file, (bspHeader_t*) header, LUMP_BRUSHSIDES, buffer, size );
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/* free buffer */
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free( buffer );
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}
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/* drawsurfaces */
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typedef struct ibspDrawSurface_s
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{
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int shaderNum;
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int fogNum;
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int surfaceType;
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int firstVert;
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int numVerts;
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int firstIndex;
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int numIndexes;
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int lightmapNum;
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int lightmapX, lightmapY;
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int lightmapWidth, lightmapHeight;
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vec3_t lightmapOrigin;
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vec3_t lightmapVecs[ 3 ];
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int patchWidth;
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int patchHeight;
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}
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ibspDrawSurface_t;
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static void CopyDrawSurfacesLump( ibspHeader_t *header ){
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int i, j;
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ibspDrawSurface_t *in;
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bspDrawSurface_t *out;
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/* get count */
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numBSPDrawSurfaces = GetLumpElements( (bspHeader_t*) header, LUMP_SURFACES, sizeof( *in ) );
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SetDrawSurfaces( numBSPDrawSurfaces );
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/* copy */
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in = GetLump( (bspHeader_t*) header, LUMP_SURFACES );
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out = bspDrawSurfaces;
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for ( i = 0; i < numBSPDrawSurfaces; i++ )
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{
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out->shaderNum = in->shaderNum;
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out->fogNum = in->fogNum;
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out->surfaceType = in->surfaceType;
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out->firstVert = in->firstVert;
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out->numVerts = in->numVerts;
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out->firstIndex = in->firstIndex;
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out->numIndexes = in->numIndexes;
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out->lightmapStyles[ 0 ] = LS_NORMAL;
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out->vertexStyles[ 0 ] = LS_NORMAL;
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out->lightmapNum[ 0 ] = in->lightmapNum;
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out->lightmapX[ 0 ] = in->lightmapX;
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out->lightmapY[ 0 ] = in->lightmapY;
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for ( j = 1; j < MAX_LIGHTMAPS; j++ )
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{
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out->lightmapStyles[ j ] = LS_NONE;
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out->vertexStyles[ j ] = LS_NONE;
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out->lightmapNum[ j ] = -3;
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out->lightmapX[ j ] = 0;
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out->lightmapY[ j ] = 0;
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}
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out->lightmapWidth = in->lightmapWidth;
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out->lightmapHeight = in->lightmapHeight;
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VectorCopy( in->lightmapOrigin, out->lightmapOrigin );
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VectorCopy( in->lightmapVecs[ 0 ], out->lightmapVecs[ 0 ] );
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VectorCopy( in->lightmapVecs[ 1 ], out->lightmapVecs[ 1 ] );
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VectorCopy( in->lightmapVecs[ 2 ], out->lightmapVecs[ 2 ] );
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out->patchWidth = in->patchWidth;
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out->patchHeight = in->patchHeight;
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in++;
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out++;
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}
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}
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static void AddDrawSurfacesLump( FILE *file, ibspHeader_t *header ){
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int i, size;
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bspDrawSurface_t *in;
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ibspDrawSurface_t *buffer, *out;
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/* allocate output buffer */
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size = numBSPDrawSurfaces * sizeof( *buffer );
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buffer = safe_malloc( size );
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memset( buffer, 0, size );
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/* convert */
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in = bspDrawSurfaces;
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out = buffer;
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for ( i = 0; i < numBSPDrawSurfaces; i++ )
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{
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out->shaderNum = in->shaderNum;
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out->fogNum = in->fogNum;
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out->surfaceType = in->surfaceType;
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out->firstVert = in->firstVert;
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out->numVerts = in->numVerts;
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out->firstIndex = in->firstIndex;
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out->numIndexes = in->numIndexes;
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out->lightmapNum = in->lightmapNum[ 0 ];
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out->lightmapX = in->lightmapX[ 0 ];
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out->lightmapY = in->lightmapY[ 0 ];
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out->lightmapWidth = in->lightmapWidth;
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out->lightmapHeight = in->lightmapHeight;
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VectorCopy( in->lightmapOrigin, out->lightmapOrigin );
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VectorCopy( in->lightmapVecs[ 0 ], out->lightmapVecs[ 0 ] );
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VectorCopy( in->lightmapVecs[ 1 ], out->lightmapVecs[ 1 ] );
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VectorCopy( in->lightmapVecs[ 2 ], out->lightmapVecs[ 2 ] );
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out->patchWidth = in->patchWidth;
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out->patchHeight = in->patchHeight;
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in++;
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out++;
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}
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/* write lump */
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AddLump( file, (bspHeader_t*) header, LUMP_SURFACES, buffer, size );
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/* free buffer */
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free( buffer );
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}
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/* drawverts */
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typedef struct
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{
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vec3_t xyz;
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float st[ 2 ];
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float lightmap[ 2 ];
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vec3_t normal;
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byte color[ 4 ];
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}
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ibspDrawVert_t;
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static void CopyDrawVertsLump( ibspHeader_t *header ){
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int i;
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ibspDrawVert_t *in;
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bspDrawVert_t *out;
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/* get count */
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numBSPDrawVerts = GetLumpElements( (bspHeader_t*) header, LUMP_DRAWVERTS, sizeof( *in ) );
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SetDrawVerts( numBSPDrawVerts );
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/* copy */
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in = GetLump( (bspHeader_t*) header, LUMP_DRAWVERTS );
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out = bspDrawVerts;
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for ( i = 0; i < numBSPDrawVerts; i++ )
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{
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VectorCopy( in->xyz, out->xyz );
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out->st[ 0 ] = in->st[ 0 ];
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out->st[ 1 ] = in->st[ 1 ];
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out->lightmap[ 0 ][ 0 ] = in->lightmap[ 0 ];
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out->lightmap[ 0 ][ 1 ] = in->lightmap[ 1 ];
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VectorCopy( in->normal, out->normal );
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out->color[ 0 ][ 0 ] = in->color[ 0 ];
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out->color[ 0 ][ 1 ] = in->color[ 1 ];
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out->color[ 0 ][ 2 ] = in->color[ 2 ];
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out->color[ 0 ][ 3 ] = in->color[ 3 ];
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in++;
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out++;
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}
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}
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static void AddDrawVertsLump( FILE *file, ibspHeader_t *header ){
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int i, size;
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bspDrawVert_t *in;
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ibspDrawVert_t *buffer, *out;
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/* allocate output buffer */
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size = numBSPDrawVerts * sizeof( *buffer );
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buffer = safe_malloc( size );
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memset( buffer, 0, size );
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/* convert */
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in = bspDrawVerts;
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out = buffer;
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for ( i = 0; i < numBSPDrawVerts; i++ )
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{
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VectorCopy( in->xyz, out->xyz );
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out->st[ 0 ] = in->st[ 0 ];
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out->st[ 1 ] = in->st[ 1 ];
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out->lightmap[ 0 ] = in->lightmap[ 0 ][ 0 ];
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out->lightmap[ 1 ] = in->lightmap[ 0 ][ 1 ];
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VectorCopy( in->normal, out->normal );
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out->color[ 0 ] = in->color[ 0 ][ 0 ];
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out->color[ 1 ] = in->color[ 0 ][ 1 ];
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out->color[ 2 ] = in->color[ 0 ][ 2 ];
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out->color[ 3 ] = in->color[ 0 ][ 3 ];
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in++;
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out++;
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}
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/* write lump */
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AddLump( file, (bspHeader_t*) header, LUMP_DRAWVERTS, buffer, size );
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/* free buffer */
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free( buffer );
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}
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/* light grid */
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typedef struct
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{
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byte ambient[ 3 ];
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byte directed[ 3 ];
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byte latLong[ 2 ];
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}
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ibspGridPoint_t;
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static void CopyLightGridLumps( ibspHeader_t *header ){
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int i, j;
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ibspGridPoint_t *in;
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bspGridPoint_t *out;
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/* get count */
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numBSPGridPoints = GetLumpElements( (bspHeader_t*) header, LUMP_LIGHTGRID, sizeof( *in ) );
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/* allocate buffer */
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bspGridPoints = safe_malloc( numBSPGridPoints * sizeof( *bspGridPoints ) );
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memset( bspGridPoints, 0, numBSPGridPoints * sizeof( *bspGridPoints ) );
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/* copy */
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in = GetLump( (bspHeader_t*) header, LUMP_LIGHTGRID );
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out = bspGridPoints;
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for ( i = 0; i < numBSPGridPoints; i++ )
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{
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for ( j = 0; j < MAX_LIGHTMAPS; j++ )
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{
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VectorCopy( in->ambient, out->ambient[ j ] );
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VectorCopy( in->directed, out->directed[ j ] );
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out->styles[ j ] = LS_NONE;
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}
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out->styles[ 0 ] = LS_NORMAL;
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out->latLong[ 0 ] = in->latLong[ 0 ];
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out->latLong[ 1 ] = in->latLong[ 1 ];
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in++;
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out++;
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}
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}
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static void AddLightGridLumps( FILE *file, ibspHeader_t *header ){
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int i;
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bspGridPoint_t *in;
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ibspGridPoint_t *buffer, *out;
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/* dummy check */
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if ( bspGridPoints == NULL ) {
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return;
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}
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/* allocate temporary buffer */
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buffer = safe_malloc( numBSPGridPoints * sizeof( *out ) );
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/* convert */
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in = bspGridPoints;
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out = buffer;
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for ( i = 0; i < numBSPGridPoints; i++ )
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{
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VectorCopy( in->ambient[ 0 ], out->ambient );
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VectorCopy( in->directed[ 0 ], out->directed );
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out->latLong[ 0 ] = in->latLong[ 0 ];
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out->latLong[ 1 ] = in->latLong[ 1 ];
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in++;
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out++;
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}
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/* write lumps */
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AddLump( file, (bspHeader_t*) header, LUMP_LIGHTGRID, buffer, ( numBSPGridPoints * sizeof( *out ) ) );
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/* free buffer (ydnar 2002-10-22: [bug 641] thanks Rap70r! */
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free( buffer );
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}
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/*
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LoadIBSPFile()
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loads a quake 3 bsp file into memory
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*/
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void LoadIBSPFile( const char *filename ){
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ibspHeader_t *header;
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/* load the file header */
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LoadFile( filename, (void**) &header );
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/* swap the header (except the first 4 bytes) */
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SwapBlock( (int*) ( (byte*) header + sizeof( int ) ), sizeof( *header ) - sizeof( int ) );
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/* make sure it matches the format we're trying to load */
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if ( force == qfalse && *( (int*) header->ident ) != *( (int*) game->bspIdent ) ) {
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Error( "%s is not a %s file", filename, game->bspIdent );
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}
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if ( force == qfalse && header->version != game->bspVersion ) {
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Error( "%s is version %d, not %d", filename, header->version, game->bspVersion );
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}
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/* load/convert lumps */
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numBSPShaders = CopyLump( (bspHeader_t*) header, LUMP_SHADERS, bspShaders, sizeof( bspShader_t ) );
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numBSPModels = CopyLump( (bspHeader_t*) header, LUMP_MODELS, bspModels, sizeof( bspModel_t ) );
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numBSPPlanes = CopyLump( (bspHeader_t*) header, LUMP_PLANES, bspPlanes, sizeof( bspPlane_t ) );
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numBSPLeafs = CopyLump( (bspHeader_t*) header, LUMP_LEAFS, bspLeafs, sizeof( bspLeaf_t ) );
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numBSPNodes = CopyLump( (bspHeader_t*) header, LUMP_NODES, bspNodes, sizeof( bspNode_t ) );
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numBSPLeafSurfaces = CopyLump( (bspHeader_t*) header, LUMP_LEAFSURFACES, bspLeafSurfaces, sizeof( bspLeafSurfaces[ 0 ] ) );
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numBSPLeafBrushes = CopyLump( (bspHeader_t*) header, LUMP_LEAFBRUSHES, bspLeafBrushes, sizeof( bspLeafBrushes[ 0 ] ) );
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numBSPBrushes = CopyLump( (bspHeader_t*) header, LUMP_BRUSHES, bspBrushes, sizeof( bspBrush_t ) );
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CopyBrushSidesLump( header );
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CopyDrawVertsLump( header );
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CopyDrawSurfacesLump( header );
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numBSPFogs = CopyLump( (bspHeader_t*) header, LUMP_FOGS, bspFogs, sizeof( bspFog_t ) );
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numBSPDrawIndexes = CopyLump( (bspHeader_t*) header, LUMP_DRAWINDEXES, bspDrawIndexes, sizeof( bspDrawIndexes[ 0 ] ) );
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numBSPVisBytes = CopyLump( (bspHeader_t*) header, LUMP_VISIBILITY, bspVisBytes, 1 );
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numBSPLightBytes = GetLumpElements( (bspHeader_t*) header, LUMP_LIGHTMAPS, 1 );
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bspLightBytes = safe_malloc( numBSPLightBytes );
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CopyLump( (bspHeader_t*) header, LUMP_LIGHTMAPS, bspLightBytes, 1 );
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bspEntDataSize = CopyLump( (bspHeader_t*) header, LUMP_ENTITIES, bspEntData, 1 );
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CopyLightGridLumps( header );
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/* advertisements */
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if ( header->version == 47 ) { // quake live's bsp version
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numBSPAds = CopyLump( (bspHeader_t*) header, LUMP_ADVERTISEMENTS, bspAds, sizeof( bspAdvertisement_t ) );
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}
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else{
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numBSPAds = 0;
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}
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/* free the file buffer */
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free( header );
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}
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/*
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WriteIBSPFile()
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writes an id bsp file
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*/
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void WriteIBSPFile( const char *filename ){
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ibspHeader_t outheader, *header;
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FILE *file;
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time_t t;
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char marker[ 1024 ];
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int size;
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/* set header */
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header = &outheader;
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memset( header, 0, sizeof( *header ) );
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//% Swapfile();
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/* set up header */
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*( (int*) (bspHeader_t*) header->ident ) = *( (int*) game->bspIdent );
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header->version = LittleLong( game->bspVersion );
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/* write initial header */
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file = SafeOpenWrite( filename );
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SafeWrite( file, (bspHeader_t*) header, sizeof( *header ) ); /* overwritten later */
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/* add marker lump */
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time( &t );
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sprintf( marker, "I LOVE MY Q3MAP2 %s on %s)", Q3MAP_VERSION, asctime( localtime( &t ) ) );
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AddLump( file, (bspHeader_t*) header, 0, marker, strlen( marker ) + 1 );
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/* add lumps */
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AddLump( file, (bspHeader_t*) header, LUMP_SHADERS, bspShaders, numBSPShaders * sizeof( bspShader_t ) );
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AddLump( file, (bspHeader_t*) header, LUMP_PLANES, bspPlanes, numBSPPlanes * sizeof( bspPlane_t ) );
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AddLump( file, (bspHeader_t*) header, LUMP_LEAFS, bspLeafs, numBSPLeafs * sizeof( bspLeaf_t ) );
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AddLump( file, (bspHeader_t*) header, LUMP_NODES, bspNodes, numBSPNodes * sizeof( bspNode_t ) );
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AddLump( file, (bspHeader_t*) header, LUMP_BRUSHES, bspBrushes, numBSPBrushes * sizeof( bspBrush_t ) );
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AddBrushSidesLump( file, header );
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AddLump( file, (bspHeader_t*) header, LUMP_LEAFSURFACES, bspLeafSurfaces, numBSPLeafSurfaces * sizeof( bspLeafSurfaces[ 0 ] ) );
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AddLump( file, (bspHeader_t*) header, LUMP_LEAFBRUSHES, bspLeafBrushes, numBSPLeafBrushes * sizeof( bspLeafBrushes[ 0 ] ) );
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AddLump( file, (bspHeader_t*) header, LUMP_MODELS, bspModels, numBSPModels * sizeof( bspModel_t ) );
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AddDrawVertsLump( file, header );
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AddDrawSurfacesLump( file, header );
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AddLump( file, (bspHeader_t*) header, LUMP_VISIBILITY, bspVisBytes, numBSPVisBytes );
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AddLump( file, (bspHeader_t*) header, LUMP_LIGHTMAPS, bspLightBytes, numBSPLightBytes );
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AddLightGridLumps( file, header );
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AddLump( file, (bspHeader_t*) header, LUMP_ENTITIES, bspEntData, bspEntDataSize );
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AddLump( file, (bspHeader_t*) header, LUMP_FOGS, bspFogs, numBSPFogs * sizeof( bspFog_t ) );
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AddLump( file, (bspHeader_t*) header, LUMP_DRAWINDEXES, bspDrawIndexes, numBSPDrawIndexes * sizeof( bspDrawIndexes[ 0 ] ) );
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/* advertisements */
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AddLump( file, (bspHeader_t*) header, LUMP_ADVERTISEMENTS, bspAds, numBSPAds * sizeof( bspAdvertisement_t ) );
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/* emit bsp size */
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size = ftell( file );
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Sys_Printf( "Wrote %.1f MB (%d bytes)\n", (float) size / ( 1024 * 1024 ), size );
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/* write the completed header */
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fseek( file, 0, SEEK_SET );
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SafeWrite( file, header, sizeof( *header ) );
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/* close the file */
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fclose( file );
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}
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