void EmitBrushes( brush_t *brushes, int *firstBrush, int *numBrushes ){
int j;
brush_t *b;
bspBrush_t *db;
bspBrushSide_t *cp;
/* set initial brush */
if ( firstBrush != NULL ) {
*firstBrush = numBSPBrushes;
}
if ( numBrushes != NULL ) {
*numBrushes = 0;
}
/* walk list of brushes */
for ( b = brushes; b != NULL; b = b->next )
{
/* check limits */
AUTOEXPAND_BY_REALLOC_BSP( Brushes, 1024 );
/* get bsp brush */
b->outputNum = numBSPBrushes;
db = &bspBrushes[ numBSPBrushes ];
numBSPBrushes++;
if ( numBrushes != NULL ) {
( *numBrushes )++;
}
db->shaderNum = EmitShader( b->contentShader->shader, &b->contentShader->contentFlags, &b->contentShader->surfaceFlags );
db->firstSide = numBSPBrushSides;
/* walk sides */
db->numSides = 0;
for ( j = 0; j < b->numsides; j++ )
{
/* set output number to bogus initially */
b->sides[ j ].outputNum = -1;
/* check count */
AUTOEXPAND_BY_REALLOC_BSP( BrushSides, 1024 );
/* emit side */
b->sides[ j ].outputNum = numBSPBrushSides;
cp = &bspBrushSides[ numBSPBrushSides ];
db->numSides++;
numBSPBrushSides++;
cp->planeNum = b->sides[ j ].planenum;
/* emit shader */
if ( b->sides[ j ].shaderInfo ) {
cp->shaderNum = EmitShader( b->sides[ j ].shaderInfo->shader, &b->sides[ j ].shaderInfo->contentFlags, &b->sides[ j ].shaderInfo->surfaceFlags );
}
else{
cp->shaderNum = EmitShader( NULL, NULL, NULL );
}
}
}
}
void EmitLeaf(node_t * node)
{
bspLeaf_t *leaf_p;
brush_t *b;
drawSurfRef_t *dsr;
/* check limits */
if(numBSPLeafs >= MAX_MAP_LEAFS)
Error("MAX_MAP_LEAFS");
leaf_p = &bspLeafs[numBSPLeafs];
numBSPLeafs++;
leaf_p->cluster = node->cluster;
leaf_p->area = node->area;
/* emit bounding box */
VectorCopy(node->mins, leaf_p->mins);
VectorCopy(node->maxs, leaf_p->maxs);
/* emit leaf brushes */
leaf_p->firstBSPLeafBrush = numBSPLeafBrushes;
for(b = node->brushlist; b; b = b->next)
{
/* something is corrupting brushes */
if((size_t) b < 256)
{
Sys_Printf("WARNING: Node brush list corrupted (0x%p)\n", b);
break;
}
//% if( b->guard != 0xDEADBEEF )
//% 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 );
AUTOEXPAND_BY_REALLOC_BSP(LeafBrushes, 1024);
bspLeafBrushes[numBSPLeafBrushes] = b->original->outputNum;
numBSPLeafBrushes++;
}
leaf_p->numBSPLeafBrushes = numBSPLeafBrushes - leaf_p->firstBSPLeafBrush;
/* emit leaf surfaces */
if(node->opaque)
return;
/* add the drawSurfRef_t drawsurfs */
leaf_p->firstBSPLeafSurface = numBSPLeafSurfaces;
for(dsr = node->drawSurfReferences; dsr; dsr = dsr->nextRef)
{
AUTOEXPAND_BY_REALLOC_BSP(LeafSurfaces, 1024);
bspLeafSurfaces[numBSPLeafSurfaces] = dsr->outputNum;
numBSPLeafSurfaces++;
}
leaf_p->numBSPLeafSurfaces = numBSPLeafSurfaces - leaf_p->firstBSPLeafSurface;
}
int EmitShader( const char *shader, int *contentFlags, int *surfaceFlags ){
int i;
shaderInfo_t *si;
/* handle special cases */
if ( shader == NULL ) {
shader = "noshader";
}
/* try to find an existing shader */
for ( i = 0; i < numBSPShaders; i++ )
{
/* ydnar: handle custom surface/content flags */
if ( surfaceFlags != NULL && bspShaders[ i ].surfaceFlags != *surfaceFlags ) {
continue;
}
if ( contentFlags != NULL && bspShaders[ i ].contentFlags != *contentFlags ) {
continue;
}
/* compare name */
if ( !Q_stricmp( shader, bspShaders[ i ].shader ) ) {
return i;
}
}
// i == numBSPShaders
/* get shaderinfo */
si = ShaderInfoForShader( shader );
/* emit a new shader */
AUTOEXPAND_BY_REALLOC_BSP( Shaders, 1024 );
numBSPShaders++;
strcpy( bspShaders[ i ].shader, shader );
bspShaders[ i ].surfaceFlags = si->surfaceFlags;
bspShaders[ i ].contentFlags = si->contentFlags;
/* handle custom content/surface flags */
if ( surfaceFlags != NULL ) {
bspShaders[ i ].surfaceFlags = *surfaceFlags;
}
if ( contentFlags != NULL ) {
bspShaders[ i ].contentFlags = *contentFlags;
}
/* recursively emit any damage shaders */
if ( si->damageShader != NULL && si->damageShader[ 0 ] != '\0' ) {
Sys_FPrintf( SYS_VRB, "Shader %s has damage shader %s\n", si->shader, si->damageShader );
EmitShader( si->damageShader, NULL, NULL );
}
/* return it */
return i;
}
void BeginModel(void)
{
bspModel_t *mod;
/* test limits */
AUTOEXPAND_BY_REALLOC_BSP(Models, 256);
/* get model and entity */
mod = &bspModels[numBSPModels];
/* set firsts */
mod->firstBSPSurface = numBSPDrawSurfaces;
mod->firstBSPBrush = numBSPBrushes;
}
int EmitDrawNode_r(node_t * node)
{
bspNode_t *n;
int i, n0;
/* check for leafnode */
if(node->planenum == PLANENUM_LEAF)
{
EmitLeaf(node);
return -numBSPLeafs;
}
/* emit a node */
AUTOEXPAND_BY_REALLOC_BSP(Nodes, 1024);
n0 = numBSPNodes;
n = &bspNodes[n0];
numBSPNodes++;
VectorCopy(node->mins, n->mins);
VectorCopy(node->maxs, n->maxs);
if(node->planenum & 1)
Error("WriteDrawNodes_r: odd planenum");
n->planeNum = node->planenum;
//
// recursively output the other nodes
//
for(i = 0; i < 2; i++)
{
if(node->children[i]->planenum == PLANENUM_LEAF)
{
n->children[i] = -(numBSPLeafs + 1);
EmitLeaf(node->children[i]);
}
else
{
n->children[i] = numBSPNodes;
EmitDrawNode_r(node->children[i]);
// n may have become invalid here, so...
n = &bspNodes[n0];
}
}
return n - bspNodes;
}
void EmitPlanes( void ){
int i;
bspPlane_t *bp;
plane_t *mp;
/* walk plane list */
mp = mapplanes;
for ( i = 0; i < nummapplanes; i++, mp++ )
{
AUTOEXPAND_BY_REALLOC_BSP( Planes, 1024 );
bp = &bspPlanes[ numBSPPlanes ];
VectorCopy( mp->normal, bp->normal );
bp->dist = mp->dist;
numBSPPlanes++;
}
/* emit some statistics */
Sys_FPrintf( SYS_VRB, "%9d BSP planes\n", numBSPPlanes );
}
void BeginBSPFile( void ){
/* these values may actually be initialized if the file existed when loaded, so clear them explicitly */
numBSPModels = 0;
numBSPNodes = 0;
numBSPBrushSides = 0;
numBSPLeafSurfaces = 0;
numBSPLeafBrushes = 0;
/* leave leaf 0 as an error, because leafs are referenced as negative number nodes */
numBSPLeafs = 1;
/* ydnar: gs mods: set the first 6 drawindexes to 0 1 2 2 1 3 for triangles and quads */
numBSPDrawIndexes = 6;
AUTOEXPAND_BY_REALLOC_BSP( DrawIndexes, 1024 );
bspDrawIndexes[ 0 ] = 0;
bspDrawIndexes[ 1 ] = 1;
bspDrawIndexes[ 2 ] = 2;
bspDrawIndexes[ 3 ] = 0;
bspDrawIndexes[ 4 ] = 2;
bspDrawIndexes[ 5 ] = 3;
}
void BeginModel( void ){
bspModel_t *mod;
brush_t *b;
entity_t *e;
vec3_t mins, maxs;
vec3_t lgMins, lgMaxs; /* ydnar: lightgrid mins/maxs */
parseMesh_t *p;
int i;
/* test limits */
AUTOEXPAND_BY_REALLOC_BSP( Models, 256 );
/* get model and entity */
mod = &bspModels[ numBSPModels ];
e = &entities[ mapEntityNum ];
/* ydnar: lightgrid mins/maxs */
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;
}
