gtkradiant/contrib/bobtoolz/bsploader.cpp

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#include "StdAfx.h"
#include "./dialogs/dialogs-gtk.h"
#include "bsploader.h"
#include "../../libs/cmdlib.h"
int numnodes;
int numplanes;
int numleafs;
int numleafsurfaces;
int numVisBytes;
int numDrawVerts;
int numDrawSurfaces;
int numbrushes;
int numbrushsides;
int numleafbrushes;
byte *visBytes = NULL;
dnode_t *dnodes = NULL;
dplane_t *dplanes = NULL;
dleaf_t *dleafs = NULL;
qdrawVert_t *drawVerts = NULL;
dsurface_t *drawSurfaces = NULL;
int *dleafsurfaces = NULL;
dbrush_t *dbrushes = NULL;
dbrushside_t *dbrushsides = NULL;
int *dleafbrushes = NULL;
#define BSP_IDENT ( ( 'P' << 24 ) + ( 'S' << 16 ) + ( 'B' << 8 ) + 'I' )
#define Q3_BSP_VERSION 46
#define WOLF_BSP_VERSION 47
/*
================
FileLength
================
*/
int FileLength( FILE *f ){
int pos;
int end;
pos = ftell( f );
fseek( f, 0, SEEK_END );
end = ftell( f );
fseek( f, pos, SEEK_SET );
return end;
}
/*
==============
LoadFile
==============
*/
qboolean LoadFile( const char *filename, byte **bufferptr ){
FILE *f;
int length;
byte *buffer;
f = fopen( filename, "rb" );
if ( !f ) {
return false;
}
length = FileLength( f );
buffer = new byte[length + 1];
buffer[length] = 0;
fread( buffer, 1, length, f );
fclose( f );
*bufferptr = buffer;
return true;
}
/*int LittleLong (int l)
{
return l;
}
float LittleFloat (float l)
{
return l;
}*/
/*
=============
SwapBlock
If all values are 32 bits, this can be used to swap everything
=============
*/
void SwapBlock( int *block, int sizeOfBlock ) {
int i;
sizeOfBlock >>= 2;
for ( i = 0 ; i < sizeOfBlock ; i++ ) {
block[i] = LittleLong( block[i] );
}
}
/*
=============
SwapBSPFile
Byte swaps all data in a bsp file.
=============
*/
void SwapBSPFile( void ) {
int i;
// models
// SwapBlock( (int *)dmodels, nummodels * sizeof( dmodels[0] ) );
// shaders (don't swap the name)
// for ( i = 0 ; i < numShaders ; i++ ) {
// dshaders[i].contentFlags = LittleLong( dshaders[i].contentFlags );
// dshaders[i].surfaceFlags = LittleLong( dshaders[i].surfaceFlags );
// }
// planes
SwapBlock( (int *)dplanes, numplanes * sizeof( dplanes[0] ) );
// nodes
SwapBlock( (int *)dnodes, numnodes * sizeof( dnodes[0] ) );
// leafs
SwapBlock( (int *)dleafs, numleafs * sizeof( dleafs[0] ) );
// leaffaces
SwapBlock( (int *)dleafsurfaces, numleafsurfaces * sizeof( dleafsurfaces[0] ) );
// leafbrushes
SwapBlock( (int *)dleafbrushes, numleafbrushes * sizeof( dleafbrushes[0] ) );
// brushes
SwapBlock( (int *)dbrushes, numbrushes * sizeof( dbrushes[0] ) );
// brushsides
SwapBlock( (int *)dbrushsides, numbrushsides * sizeof( dbrushsides[0] ) );
// vis
( (int *)&visBytes )[0] = LittleLong( ( (int *)&visBytes )[0] );
( (int *)&visBytes )[1] = LittleLong( ( (int *)&visBytes )[1] );
// drawverts (don't swap colors )
for ( i = 0 ; i < numDrawVerts ; i++ ) {
drawVerts[i].lightmap[0] = LittleFloat( drawVerts[i].lightmap[0] );
drawVerts[i].lightmap[1] = LittleFloat( drawVerts[i].lightmap[1] );
drawVerts[i].st[0] = LittleFloat( drawVerts[i].st[0] );
drawVerts[i].st[1] = LittleFloat( drawVerts[i].st[1] );
drawVerts[i].xyz[0] = LittleFloat( drawVerts[i].xyz[0] );
drawVerts[i].xyz[1] = LittleFloat( drawVerts[i].xyz[1] );
drawVerts[i].xyz[2] = LittleFloat( drawVerts[i].xyz[2] );
drawVerts[i].normal[0] = LittleFloat( drawVerts[i].normal[0] );
drawVerts[i].normal[1] = LittleFloat( drawVerts[i].normal[1] );
drawVerts[i].normal[2] = LittleFloat( drawVerts[i].normal[2] );
}
// drawindexes
// SwapBlock( (int *)drawIndexes, numDrawIndexes * sizeof( drawIndexes[0] ) );
// drawsurfs
SwapBlock( (int *)drawSurfaces, numDrawSurfaces * sizeof( drawSurfaces[0] ) );
// fogs
// for ( i = 0 ; i < numFogs ; i++ ) {
// dfogs[i].brushNum = LittleLong( dfogs[i].brushNum );
// dfogs[i].visibleSide = LittleLong( dfogs[i].visibleSide );
// }
}
/*
=============
CopyLump
=============
*/
int CopyLump( dheader_t *header, int lump, void **dest, int size ) {
int length, ofs;
length = header->lumps[lump].filelen;
ofs = header->lumps[lump].fileofs;
if ( length == 0 ) {
return 0;
}
*dest = new byte[length];
memcpy( *dest, (byte *)header + ofs, length );
return length / size;
}
/*
=============
LoadBSPFile
=============
*/
qboolean LoadBSPFile( const char *filename ) {
dheader_t *header;
// load the file header
if ( !LoadFile( filename, (byte **)&header ) ) {
return false;
}
// swap the header
SwapBlock( (int *)header, sizeof( *header ) );
if ( header->ident != BSP_IDENT ) {
DoMessageBox( "Cant find a valid IBSP file", "Error", MB_OK );
return false;
}
if ( ( header->version != Q3_BSP_VERSION ) &&
( header->version != WOLF_BSP_VERSION ) ) {
DoMessageBox( "File is incorrect version", "Error", MB_OK );
return false;
}
numbrushsides = CopyLump( header, LUMP_BRUSHES, (void**)&dbrushsides, sizeof( dbrushside_t ) );
numbrushes = CopyLump( header, LUMP_BRUSHES, (void**)&dbrushes, sizeof( dbrush_t ) );
numplanes = CopyLump( header, LUMP_PLANES, (void**)&dplanes, sizeof( dplane_t ) );
numleafs = CopyLump( header, LUMP_LEAFS, (void**)&dleafs, sizeof( dleaf_t ) );
numnodes = CopyLump( header, LUMP_NODES, (void**)&dnodes, sizeof( dnode_t ) );
numDrawVerts = CopyLump( header, LUMP_DRAWVERTS, (void**)&drawVerts, sizeof( qdrawVert_t ) );
numDrawSurfaces = CopyLump( header, LUMP_SURFACES, (void**)&drawSurfaces, sizeof( dsurface_t ) );
numleafsurfaces = CopyLump( header, LUMP_LEAFSURFACES, (void**)&dleafsurfaces, sizeof( int ) );
numVisBytes = CopyLump( header, LUMP_VISIBILITY, (void**)&visBytes, 1 );
numleafbrushes = CopyLump( header, LUMP_LEAFBRUSHES, (void**)&dleafbrushes, sizeof( int ) );
delete header; // everything has been copied out
// swap everything
SwapBSPFile();
return true;
}
void FreeBSPData(){
if ( visBytes ) {
delete visBytes;
}
if ( dnodes ) {
delete dnodes;
}
if ( dplanes ) {
delete dplanes;
}
if ( dleafs ) {
delete dleafs;
}
if ( drawVerts ) {
delete drawVerts;
}
if ( drawSurfaces ) {
delete drawSurfaces;
}
if ( dleafsurfaces ) {
delete dleafsurfaces;
}
if ( dleafbrushes ) {
delete dleafbrushes;
}
if ( dbrushes ) {
delete dbrushes;
}
if ( dbrushsides ) {
delete dbrushsides;
}
}