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dhewm3/neo/tools/compilers/dmap/glfile.cpp

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/*
===========================================================================
Doom 3 GPL Source Code
Copyright (C) 1999-2011 id Software LLC, a ZeniMax Media company.
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This file is part of the Doom 3 GPL Source Code ("Doom 3 Source Code").
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Doom 3 Source Code is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Doom 3 Source Code is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Doom 3 Source Code. If not, see <http://www.gnu.org/licenses/>.
In addition, the Doom 3 Source Code is also subject to certain additional terms. You should have received a copy of these additional terms immediately following the terms and conditions of the GNU General Public License which accompanied the Doom 3 Source Code. If not, please request a copy in writing from id Software at the address below.
If you have questions concerning this license or the applicable additional terms, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
===========================================================================
*/
#include "sys/platform.h"
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#include "tools/compilers/dmap/dmap.h"
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int c_glfaces;
int PortalVisibleSides( uPortal_t *p )
{
int fcon, bcon;
if (!p->onnode)
return 0; // outside
fcon = p->nodes[0]->opaque;
bcon = p->nodes[1]->opaque;
// same contents never create a face
if (fcon == bcon)
return 0;
if (!fcon)
return 1;
if (!bcon)
return 2;
return 0;
}
void OutputWinding( idWinding *w, idFile *glview )
{
static int level = 128;
float light;
int i;
glview->WriteFloatString( "%i\n", w->GetNumPoints() );
level += 28;
light = (level&255)/255.0;
for ( i = 0; i < w->GetNumPoints(); i++ ) {
glview->WriteFloatString( "%6.3f %6.3f %6.3f %6.3f %6.3f %6.3f\n",
(*w)[i][0],
(*w)[i][1],
(*w)[i][2],
light,
light,
light );
}
glview->WriteFloatString( "\n" );
}
/*
=============
OutputPortal
=============
*/
void OutputPortal( uPortal_t *p, idFile *glview ) {
idWinding *w;
int sides;
sides = PortalVisibleSides( p );
if ( !sides ) {
return;
}
c_glfaces++;
w = p->winding;
if ( sides == 2 ) { // back side
w = w->Reverse();
}
OutputWinding( w, glview );
if ( sides == 2 ) {
delete w;
}
}
/*
=============
WriteGLView_r
=============
*/
void WriteGLView_r( node_t *node, idFile *glview )
{
uPortal_t *p, *nextp;
if ( node->planenum != PLANENUM_LEAF )
{
WriteGLView_r( node->children[0], glview );
WriteGLView_r( node->children[1], glview );
return;
}
// write all the portals
for ( p = node->portals; p; p = nextp )
{
if ( p->nodes[0] == node )
{
OutputPortal( p, glview );
nextp = p->next[0];
}
else {
nextp = p->next[1];
}
}
}
/*
=============
WriteGLView
=============
*/
void WriteGLView( tree_t *tree, char *source )
{
idFile *glview;
c_glfaces = 0;
common->Printf( "Writing %s\n", source );
glview = fileSystem->OpenExplicitFileWrite( source );
if ( !glview ) {
common->Error( "Couldn't open %s", source );
}
WriteGLView_r( tree->headnode, glview );
fileSystem->CloseFile( glview );
common->Printf( "%5i c_glfaces\n", c_glfaces );
}