648 lines
14 KiB
C
648 lines
14 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 WRITEBSP_C
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/* dependencies */
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#include "vmap.h"
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/*
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EmitShader()
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emits a bsp shader entry
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*/
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int EmitShader( const char *shader, int *contentFlags, int *surfaceFlags ){
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int i;
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shaderInfo_t *si;
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/* handle special cases */
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if ( shader == NULL ) {
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shader = "noshader";
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}
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/* try to find an existing shader */
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for ( i = 0; i < numBSPShaders; i++ )
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{
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/* ydnar: handle custom surface/content flags */
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if ( surfaceFlags != NULL && bspShaders[ i ].surfaceFlags != *surfaceFlags ) {
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continue;
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}
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if ( contentFlags != NULL && bspShaders[ i ].contentFlags != *contentFlags ) {
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continue;
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}
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/* compare name */
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if ( !Q_stricmp( shader, bspShaders[ i ].shader ) ) {
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return i;
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}
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}
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/* get shaderinfo */
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si = ShaderInfoForShader( shader );
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/* emit a new shader */
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AUTOEXPAND_BY_REALLOC_BSP( Shaders, 1024 );
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numBSPShaders++;
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strcpy( bspShaders[ i ].shader, shader );
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bspShaders[ i ].surfaceFlags = si->surfaceFlags;
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bspShaders[ i ].contentFlags = si->contentFlags;
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/* handle custom content/surface flags */
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if ( surfaceFlags != NULL ) {
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bspShaders[ i ].surfaceFlags = *surfaceFlags;
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}
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if ( contentFlags != NULL ) {
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bspShaders[ i ].contentFlags = *contentFlags;
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}
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/* recursively emit any damage shaders */
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if ( si->damageShader != NULL && si->damageShader[ 0 ] != '\0' ) {
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Sys_FPrintf( SYS_VRB, "Shader %s has damage shader %s\n", si->shader, si->damageShader );
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EmitShader( si->damageShader, NULL, NULL );
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}
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/* return it */
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return i;
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}
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/*
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EmitPlanes()
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there is no oportunity to discard planes, because all of the original
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brushes will be saved in the map
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*/
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void EmitPlanes( void ){
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int i;
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bspPlane_t *bp;
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plane_t *mp;
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/* walk plane list */
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mp = mapplanes;
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for ( i = 0; i < nummapplanes; i++, mp++ )
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{
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AUTOEXPAND_BY_REALLOC_BSP( Planes, 1024 );
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bp = &bspPlanes[ numBSPPlanes ];
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VectorCopy( mp->normal, bp->normal );
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bp->dist = mp->dist;
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numBSPPlanes++;
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}
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/* emit some statistics */
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Sys_FPrintf( SYS_VRB, "%9d BSP planes\n", numBSPPlanes );
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}
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/*
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EmitLeaf()
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emits a leafnode to the bsp file
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*/
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void EmitLeaf( node_t *node ){
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bspLeaf_t *leaf_p;
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brush_t *b;
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drawSurfRef_t *dsr;
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/* check limits */
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if ( numBSPLeafs >= MAX_MAP_LEAFS ) {
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Error( "MAX_MAP_LEAFS" );
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}
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leaf_p = &bspLeafs[numBSPLeafs];
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numBSPLeafs++;
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leaf_p->cluster = node->cluster;
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leaf_p->area = node->area;
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/* emit bounding box */
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VectorCopy( node->mins, leaf_p->mins );
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VectorCopy( node->maxs, leaf_p->maxs );
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/* emit leaf brushes */
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leaf_p->firstBSPLeafBrush = numBSPLeafBrushes;
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for ( b = node->brushlist; b; b = b->next )
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{
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/* something is corrupting brushes */
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if ( (size_t) b < 256 ) {
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Sys_FPrintf( SYS_WRN, "WARNING: Node brush list corrupted (0x%08X)\n", b );
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break;
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}
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//% if( b->guard != 0xDEADBEEF )
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//% Sys_Printf( "Brush %6d: 0x%08X Guard: 0x%08X Next: 0x%08X Original: 0x%08X Sides: %d\n", b->brushNum, b, b, b->next, b->original, b->numsides );
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AUTOEXPAND_BY_REALLOC_BSP( LeafBrushes, 1024 );
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bspLeafBrushes[ numBSPLeafBrushes ] = b->original->outputNum;
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numBSPLeafBrushes++;
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}
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leaf_p->numBSPLeafBrushes = numBSPLeafBrushes - leaf_p->firstBSPLeafBrush;
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/* emit leaf surfaces */
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if ( node->opaque ) {
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return;
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}
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/* add the drawSurfRef_t drawsurfs */
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leaf_p->firstBSPLeafSurface = numBSPLeafSurfaces;
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for ( dsr = node->drawSurfReferences; dsr; dsr = dsr->nextRef )
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{
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AUTOEXPAND_BY_REALLOC_BSP( LeafSurfaces, 1024 );
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bspLeafSurfaces[ numBSPLeafSurfaces ] = dsr->outputNum;
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numBSPLeafSurfaces++;
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}
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leaf_p->numBSPLeafSurfaces = numBSPLeafSurfaces - leaf_p->firstBSPLeafSurface;
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}
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/*
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EmitDrawNode_r()
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recursively emit the bsp nodes
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*/
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int EmitDrawNode_r( node_t *node ){
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bspNode_t *n;
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int i, n0;
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/* check for leafnode */
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if ( node->planenum == PLANENUM_LEAF ) {
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EmitLeaf( node );
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return -numBSPLeafs;
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}
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/* emit a node */
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AUTOEXPAND_BY_REALLOC_BSP( Nodes, 1024 );
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n0 = numBSPNodes;
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n = &bspNodes[ n0 ];
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numBSPNodes++;
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VectorCopy( node->mins, n->mins );
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VectorCopy( node->maxs, n->maxs );
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if ( node->planenum & 1 ) {
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Error( "WriteDrawNodes_r: odd planenum" );
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}
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n->planeNum = node->planenum;
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//
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// recursively output the other nodes
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//
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for ( i = 0 ; i < 2 ; i++ )
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{
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if ( node->children[i]->planenum == PLANENUM_LEAF ) {
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n->children[i] = -( numBSPLeafs + 1 );
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EmitLeaf( node->children[i] );
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}
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else
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{
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n->children[i] = numBSPNodes;
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EmitDrawNode_r( node->children[i] );
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// n may have become invalid here, so...
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n = &bspNodes[ n0 ];
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}
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}
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return n - bspNodes;
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}
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/*
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============
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SetModelNumbers
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============
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*/
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void SetModelNumbers( void ){
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int i;
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int models;
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char value[12];
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models = 1;
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for ( i = 1 ; i < numEntities ; i++ ) {
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if ( entities[i].brushes || entities[i].patches ) {
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sprintf( value, "*%i", models );
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models++;
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SetKeyValue( &entities[i], "model", value );
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}
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}
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}
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/*
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SetLightStyles()
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sets style keys for entity lights
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*/
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void SetLightStyles( void ){
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int i, j, style, numStyles;
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const char *t;
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entity_t *e;
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epair_t *ep, *next;
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char value[ 10 ];
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char lightTargets[ MAX_SWITCHED_LIGHTS ][ 64 ];
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int lightStyles[ MAX_SWITCHED_LIGHTS ];
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/* -keeplights option: force lights to be kept and ignore what the map file says */
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if ( keepLights ) {
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SetKeyValue( &entities[0], "_keepLights", "1" );
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}
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/* ydnar: determine if we keep lights in the bsp */
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if ( KeyExists( &entities[ 0 ], "_keepLights" ) == qtrue ) {
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t = ValueForKey( &entities[ 0 ], "_keepLights" );
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keepLights = ( t[ 0 ] == '1' ) ? qtrue : qfalse;
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}
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/* any light that is controlled (has a targetname) must have a unique style number generated for it */
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numStyles = 0;
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for ( i = 1; i < numEntities; i++ )
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{
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e = &entities[ i ];
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t = ValueForKey( e, "classname" );
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if ( Q_strncasecmp( t, "light", 5 ) ) {
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continue;
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}
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t = ValueForKey( e, "targetname" );
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if ( t[ 0 ] == '\0' ) {
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/* ydnar: strip the light from the BSP file */
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if ( keepLights == qfalse ) {
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ep = e->epairs;
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while ( ep != NULL )
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{
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next = ep->next;
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free( ep->key );
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free( ep->value );
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free( ep );
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ep = next;
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}
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e->epairs = NULL;
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numStrippedLights++;
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}
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/* next light */
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continue;
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}
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/* get existing style */
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style = IntForKey( e, "style" );
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if ( style < LS_NORMAL || style > LS_NONE ) {
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Error( "Invalid lightstyle (%d) on entity %d", style, i );
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}
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/* find this targetname */
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for ( j = 0; j < numStyles; j++ )
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if ( lightStyles[ j ] == style && !strcmp( lightTargets[ j ], t ) ) {
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break;
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}
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/* add a new style */
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if ( j >= numStyles ) {
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if ( numStyles == MAX_SWITCHED_LIGHTS ) {
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Error( "MAX_SWITCHED_LIGHTS (%d) exceeded, reduce the number of lights with targetnames", MAX_SWITCHED_LIGHTS );
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}
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strcpy( lightTargets[ j ], t );
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lightStyles[ j ] = style;
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numStyles++;
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}
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/* set explicit style */
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sprintf( value, "%d", 12 + j );
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SetKeyValue( e, "style", value );
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/* set old style */
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if ( style != LS_NORMAL ) {
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sprintf( value, "%d", style );
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SetKeyValue( e, "switch_style", value );
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}
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}
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/* emit some statistics */
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Sys_FPrintf( SYS_VRB, "%9d light entities stripped\n", numStrippedLights );
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}
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/*
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BeginBSPFile()
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starts a new bsp file
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*/
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void BeginBSPFile( void ){
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/* these values may actually be initialized if the file existed when loaded, so clear them explicitly */
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numBSPModels = 0;
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numBSPNodes = 0;
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numBSPBrushSides = 0;
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numBSPLeafSurfaces = 0;
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numBSPLeafBrushes = 0;
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/* leave leaf 0 as an error, because leafs are referenced as negative number nodes */
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numBSPLeafs = 1;
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/* ydnar: gs mods: set the first 6 drawindexes to 0 1 2 2 1 3 for triangles and quads */
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numBSPDrawIndexes = 6;
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AUTOEXPAND_BY_REALLOC_BSP( DrawIndexes, 1024 );
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bspDrawIndexes[ 0 ] = 0;
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bspDrawIndexes[ 1 ] = 1;
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bspDrawIndexes[ 2 ] = 2;
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bspDrawIndexes[ 3 ] = 0;
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bspDrawIndexes[ 4 ] = 2;
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bspDrawIndexes[ 5 ] = 3;
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}
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/*
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EndBSPFile()
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finishes a new bsp and writes to disk
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*/
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void EndBSPFile( qboolean do_write, const char *BSPFilePath, const char *surfaceFilePath ){
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Sys_FPrintf( SYS_VRB, "--- EndBSPFile ---\n" );
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EmitPlanes();
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numBSPEntities = numEntities;
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UnparseEntities();
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if ( do_write ) {
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/* write the surface extra file */
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WriteSurfaceExtraFile( surfaceFilePath );
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/* write the bsp */
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Sys_Printf( "Writing %s\n", BSPFilePath );
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WriteBSPFile( BSPFilePath );
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}
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}
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/*
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EmitBrushes()
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writes the brush list to the bsp
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*/
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void EmitBrushes( brush_t *brushes, int *firstBrush, int *numBrushes ){
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int j;
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brush_t *b;
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bspBrush_t *db;
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bspBrushSide_t *cp;
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/* set initial brush */
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if ( firstBrush != NULL ) {
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*firstBrush = numBSPBrushes;
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}
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if ( numBrushes != NULL ) {
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*numBrushes = 0;
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}
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/* walk list of brushes */
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for ( b = brushes; b != NULL; b = b->next )
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{
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/* check limits */
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AUTOEXPAND_BY_REALLOC_BSP( Brushes, 1024 );
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/* get bsp brush */
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b->outputNum = numBSPBrushes;
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db = &bspBrushes[ numBSPBrushes ];
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numBSPBrushes++;
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if ( numBrushes != NULL ) {
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( *numBrushes )++;
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}
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int ns = 0x4000;
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int nx = 0;
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if (b->nosolid)
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db->shaderNum = EmitShader( b->contentShader->shader, &nx, &ns );
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else
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db->shaderNum = EmitShader( b->contentShader->shader, &b->contentShader->contentFlags, &b->contentShader->surfaceFlags );
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db->firstSide = numBSPBrushSides;
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/* walk sides */
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db->numSides = 0;
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for ( j = 0; j < b->numsides; j++ )
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{
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/* set output number to bogus initially */
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b->sides[ j ].outputNum = -1;
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/* check count */
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AUTOEXPAND_BY_REALLOC_BSP( BrushSides, 1024 );
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/* emit side */
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b->sides[ j ].outputNum = numBSPBrushSides;
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cp = &bspBrushSides[ numBSPBrushSides ];
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db->numSides++;
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numBSPBrushSides++;
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cp->planeNum = b->sides[ j ].planenum;
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/* emit shader */
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if ( b->sides[ j ].shaderInfo ) {
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if (b->nosolid)
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cp->shaderNum = EmitShader( b->sides[ j ].shaderInfo->shader, &nx, &ns );
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else
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cp->shaderNum = EmitShader( b->sides[ j ].shaderInfo->shader, &b->sides[ j ].shaderInfo->contentFlags, &b->sides[ j ].shaderInfo->surfaceFlags );
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} else {
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cp->shaderNum = EmitShader( NULL, NULL, NULL );
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}
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}
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}
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}
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/*
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EmitFogs() - ydnar
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turns map fogs into bsp fogs
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*/
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void EmitFogs( void ){
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int i, j;
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/* setup */
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numBSPFogs = numMapFogs;
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/* walk list */
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for ( i = 0; i < numMapFogs; i++ )
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{
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/* set shader */
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strcpy( bspFogs[ i ].shader, mapFogs[ i ].si->shader );
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/* global fog doesn't have an associated brush */
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if ( mapFogs[ i ].brush == NULL ) {
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bspFogs[ i ].brushNum = -1;
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bspFogs[ i ].visibleSide = -1;
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}
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else
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{
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/* set brush */
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bspFogs[ i ].brushNum = mapFogs[ i ].brush->outputNum;
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/* try to use forced visible side */
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if ( mapFogs[ i ].visibleSide >= 0 ) {
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bspFogs[ i ].visibleSide = mapFogs[ i ].visibleSide;
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continue;
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}
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/* find visible side */
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for ( j = 0; j < 6; j++ )
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{
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if ( mapFogs[ i ].brush->sides[ j ].visibleHull != NULL ) {
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Sys_Printf( "Fog %d has visible side %d\n", i, j );
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bspFogs[ i ].visibleSide = j;
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break;
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}
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}
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}
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}
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}
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/*
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BeginModel()
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sets up a new brush model
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*/
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void BeginModel( void ){
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bspModel_t *mod;
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brush_t *b;
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entity_t *e;
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vec3_t mins, maxs;
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vec3_t lgMins, lgMaxs; /* ydnar: lightgrid mins/maxs */
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parseMesh_t *p;
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int i;
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|
/* test limits */
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|
AUTOEXPAND_BY_REALLOC_BSP( Models, 256 );
|
|
|
|
/* get model and entity */
|
|
mod = &bspModels[ numBSPModels ];
|
|
e = &entities[ mapEntityNum ];
|
|
|
|
/* ydnar: lightgrid mins/maxs */
|
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ClearBounds( lgMins, lgMaxs );
|
|
|
|
/* bound the brushes */
|
|
ClearBounds( mins, maxs );
|
|
for ( b = e->brushes; b; b = b->next )
|
|
{
|
|
/* ignore non-real brushes (origin, etc) */
|
|
if ( b->numsides == 0 ) {
|
|
continue;
|
|
}
|
|
AddPointToBounds( b->mins, mins, maxs );
|
|
AddPointToBounds( b->maxs, mins, maxs );
|
|
|
|
/* ydnar: lightgrid bounds */
|
|
if ( b->compileFlags & C_LIGHTGRID ) {
|
|
AddPointToBounds( b->mins, lgMins, lgMaxs );
|
|
AddPointToBounds( b->maxs, lgMins, lgMaxs );
|
|
}
|
|
}
|
|
|
|
/* bound patches */
|
|
for ( p = e->patches; p; p = p->next )
|
|
{
|
|
for ( i = 0; i < ( p->mesh.width * p->mesh.height ); i++ )
|
|
AddPointToBounds( p->mesh.verts[i].xyz, mins, maxs );
|
|
}
|
|
|
|
/* ydnar: lightgrid mins/maxs */
|
|
if ( lgMins[ 0 ] < 99999 ) {
|
|
/* use lightgrid bounds */
|
|
VectorCopy( lgMins, mod->mins );
|
|
VectorCopy( lgMaxs, mod->maxs );
|
|
}
|
|
else
|
|
{
|
|
/* use brush/patch bounds */
|
|
VectorCopy( mins, mod->mins );
|
|
VectorCopy( maxs, mod->maxs );
|
|
}
|
|
|
|
/* note size */
|
|
Sys_FPrintf( SYS_VRB, "BSP bounds: { %f %f %f } { %f %f %f }\n", mins[ 0 ], mins[ 1 ], mins[ 2 ], maxs[ 0 ], maxs[ 1 ], maxs[ 2 ] );
|
|
Sys_FPrintf( SYS_VRB, "Lightgrid bounds: { %f %f %f } { %f %f %f }\n", lgMins[ 0 ], lgMins[ 1 ], lgMins[ 2 ], lgMaxs[ 0 ], lgMaxs[ 1 ], lgMaxs[ 2 ] );
|
|
|
|
/* set firsts */
|
|
mod->firstBSPSurface = numBSPDrawSurfaces;
|
|
mod->firstBSPBrush = numBSPBrushes;
|
|
}
|
|
|
|
|
|
|
|
|
|
/*
|
|
EndModel()
|
|
finish a model's processing
|
|
*/
|
|
|
|
void EndModel( entity_t *e, node_t *headnode ){
|
|
bspModel_t *mod;
|
|
|
|
|
|
/* note it */
|
|
Sys_FPrintf( SYS_VRB, "--- EndModel ---\n" );
|
|
|
|
/* emit the bsp */
|
|
mod = &bspModels[ numBSPModels ];
|
|
EmitDrawNode_r( headnode );
|
|
|
|
/* set surfaces and brushes */
|
|
mod->numBSPSurfaces = numBSPDrawSurfaces - mod->firstBSPSurface;
|
|
mod->firstBSPBrush = e->firstBrush;
|
|
mod->numBSPBrushes = e->numBrushes;
|
|
|
|
/* increment model count */
|
|
numBSPModels++;
|
|
}
|