+++ /dev/null
-/*
- Copyright (C) 1999-2007 id Software, Inc. and contributors.
- For a list of contributors, see the accompanying CONTRIBUTORS file.
-
- This file is part of GtkRadiant.
-
- GtkRadiant 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 2 of the License, or
- (at your option) any later version.
-
- GtkRadiant 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 GtkRadiant; if not, write to the Free Software
- Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-//
-// l3dslib.c: library for loading triangles from an Alias triangle file
-//
-
-#include <stdio.h>
-#include "cmdlib.h"
-#include "inout.h"
-#include "mathlib.h"
-#include "trilib.h"
-#include "l3dslib.h"
-#include "token.h"
-#include "fmodel.h"
-#include "bspfile.h"
-
-#define MAIN3DS 0x4D4D
-#define EDIT3DS 0x3D3D // this is the start of the editor config
-#define EDIT_OBJECT 0x4000
-#define OBJ_TRIMESH 0x4100
-#define TRI_VERTEXL 0x4110
-#define TRI_FACEL1 0x4120
-
-#define MAXVERTS 2000
-
-typedef struct {
- int v[4];
-} tri;
-
-float fverts[MAXVERTS][3];
-tri tris[MAXTRIANGLES];
-
-int bytesread, level, numtris, totaltris;
-int vertsfound, trisfound;
-
-triangle_t *ptri;
-
-
-
-void DefaultNodesList( mesh_node_t **nodesList, int *num_mesh_nodes, int *numtriangles ){
- int pos, bit, i;
-
- if ( nodesList ) {
- *num_mesh_nodes = 1;
- memset( &( *nodesList )[0], 0, sizeof( mesh_node_t ) );
- strcpy( ( *nodesList )[0].name, "default" );
-
- // set all of the tris to be used for the top node
- for ( i = 0; i < ( *numtriangles ); i++ )
- {
- pos = ( i ) >> 3;
- bit = 1 << ( ( i ) & 7 );
-
- ( *nodesList )[0].tris[pos] |= bit;
- }
- }
-}
-
-
-// Alias stores triangles as 3 explicit vertices in .tri files, so even though we
-// start out with a vertex pool and vertex indices for triangles, we have to convert
-// to raw, explicit triangles
-void StoreAliasTriangles( void ){
- int i, j, k;
-
- if ( ( totaltris + numtris ) > MAXTRIANGLES ) {
- Error( "Error: Too many triangles" );
- }
-
- for ( i = 0; i < numtris ; i++ )
- {
- for ( j = 0 ; j < 3 ; j++ )
- {
- for ( k = 0 ; k < 3 ; k++ )
- {
- ptri[i + totaltris].verts[j][k] = fverts[tris[i].v[j]][k];
- }
- }
- }
-
- totaltris += numtris;
- numtris = 0;
- vertsfound = 0;
- trisfound = 0;
-}
-
-
-int ParseVertexL( FILE *input ){
- int i, j, startbytesread, numverts;
- unsigned short tshort;
-
- if ( vertsfound ) {
- Error( "Error: Multiple vertex chunks" );
- }
-
- vertsfound = 1;
- startbytesread = bytesread;
-
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &tshort, sizeof( tshort ), 1, input );
- bytesread += sizeof( tshort );
- numverts = (int)tshort;
-
- if ( numverts > MAXVERTS ) {
- Error( "Error: Too many vertices" );
- }
-
- for ( i = 0 ; i < numverts ; i++ )
- {
- for ( j = 0 ; j < 3 ; j++ )
- {
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &fverts[i][j], sizeof( float ), 1, input );
- bytesread += sizeof( float );
- }
- }
-
- if ( vertsfound && trisfound ) {
- StoreAliasTriangles();
- }
-
- return bytesread - startbytesread;
-}
-
-
-int ParseFaceL1( FILE *input ){
-
- int i, j, startbytesread;
- unsigned short tshort;
-
- if ( trisfound ) {
- Error( "Error: Multiple face chunks" );
- }
-
- trisfound = 1;
- startbytesread = bytesread;
-
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &tshort, sizeof( tshort ), 1, input );
- bytesread += sizeof( tshort );
- numtris = (int)tshort;
-
- if ( numtris > MAXTRIANGLES ) {
- Error( "Error: Too many triangles" );
- }
-
- for ( i = 0 ; i < numtris ; i++ )
- {
- for ( j = 0 ; j < 4 ; j++ )
- {
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &tshort, sizeof( tshort ), 1, input );
- bytesread += sizeof( tshort );
- tris[i].v[j] = (int)tshort;
- }
- }
-
- if ( vertsfound && trisfound ) {
- StoreAliasTriangles();
- }
-
- return bytesread - startbytesread;
-}
-
-
-int ParseChunk( FILE *input ){
-#define BLOCK_SIZE 4096
- char temp[BLOCK_SIZE];
- unsigned short type;
- int i, length, w, t, retval;
-
- level++;
- retval = 0;
-
-// chunk type
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &type, sizeof( type ), 1, input );
- bytesread += sizeof( type );
-
-// chunk length
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &length, sizeof( length ), 1, input );
- bytesread += sizeof( length );
- w = length - 6;
-
-// process chunk if we care about it, otherwise skip it
- switch ( type )
- {
- case TRI_VERTEXL:
- w -= ParseVertexL( input );
- goto ParseSubchunk;
-
- case TRI_FACEL1:
- w -= ParseFaceL1( input );
- goto ParseSubchunk;
-
- case EDIT_OBJECT:
- // read the name
- i = 0;
-
- do
- {
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &temp[i], 1, 1, input );
- i++;
- w--;
- bytesread++;
- } while ( temp[i - 1] );
-
- case MAIN3DS:
- case OBJ_TRIMESH:
- case EDIT3DS:
- // parse through subchunks
-ParseSubchunk:
- while ( w > 0 )
- {
- w -= ParseChunk( input );
- }
-
- retval = length;
- goto Done;
-
- default:
- // skip other chunks
- while ( w > 0 )
- {
- t = w;
-
- if ( t > BLOCK_SIZE ) {
- t = BLOCK_SIZE;
- }
-
- if ( feof( input ) ) {
- Error( "Error: unexpected end of file" );
- }
-
- fread( &temp, t, 1, input );
- bytesread += t;
-
- w -= t;
- }
-
- retval = length;
- goto Done;
- }
-
-Done:
- level--;
- return retval;
-}
-
-
-void Load3DSTriangleList( char *filename, triangle_t **pptri, int *numtriangles, mesh_node_t **nodesList, int *num_mesh_nodes ){
- FILE *input;
- short int tshort;
-
- if ( nodesList ) {
- *num_mesh_nodes = 0;
- *nodesList = (mesh_node_t *) SafeMalloc( MAX_FM_MESH_NODES * sizeof( mesh_node_t ), "Mesh Node List" );
- }
-
- bytesread = 0;
- level = 0;
- numtris = 0;
- totaltris = 0;
- vertsfound = 0;
- trisfound = 0;
-
- if ( ( input = fopen( filename, "rb" ) ) == 0 ) {
- fprintf( stderr,"reader: could not open file '%s'\n", filename );
- exit( 0 );
- }
-
- fread( &tshort, sizeof( tshort ), 1, input );
-
-// should only be MAIN3DS, but some files seem to start with EDIT3DS, with
-// no MAIN3DS
- if ( ( tshort != MAIN3DS ) && ( tshort != EDIT3DS ) ) {
- fprintf( stderr,"File is not a 3DS file.\n" );
- exit( 0 );
- }
-
-// back to top of file so we can parse the first chunk descriptor
- fseek( input, 0, SEEK_SET );
-
- ptri = malloc( MAXTRIANGLES * sizeof( triangle_t ) );
-
- *pptri = ptri;
-
-// parse through looking for the relevant chunk tree (MAIN3DS | EDIT3DS | EDIT_OBJECT |
-// OBJ_TRIMESH | {TRI_VERTEXL, TRI_FACEL1}) and skipping other chunks
- ParseChunk( input );
-
- if ( vertsfound || trisfound ) {
- Error( "Incomplete triangle set" );
- }
-
- *numtriangles = totaltris;
-
- fclose( input );
-
- DefaultNodesList( nodesList,num_mesh_nodes,numtriangles );
-}
-
-//==========================================================================
-//
-// LoadASC
-//
-//==========================================================================
-
-void LoadASC( char *fileName, triangle_t **triList, int *triangleCount, mesh_node_t **nodesList, int *num_mesh_nodes ){
- int i, j;
- int vertexCount;
- struct
- {
- float v[3];
- } *vList;
- int triCount;
- triangle_t *tList;
- float x, y, z;
-// float x2, y2, z2;
-// float rx, ry, rz;
- qboolean goodObject;
-
- if ( nodesList ) {
- *num_mesh_nodes = 0;
- *nodesList = (mesh_node_t *) SafeMalloc( MAX_FM_MESH_NODES * sizeof( mesh_node_t ), "Mesh Node List" );
- }
-
- TK_OpenSource( fileName );
-
- goodObject = false;
- while ( goodObject == false )
- {
- TK_Beyond( TK_C_NAMED );
- TK_Beyond( TK_OBJECT );
- TK_Beyond( TK_C_TRI );
- TK_Beyond( TK_MESH );
- TK_BeyondRequire( TK_C_VERTICES, TK_COLON );
- TK_FetchRequire( TK_INTNUMBER );
- vertexCount = tk_IntNumber;
- if ( vertexCount > 0 ) {
- goodObject = true;
- }
- }
- TK_BeyondRequire( TK_C_FACES, TK_COLON );
- TK_FetchRequire( TK_INTNUMBER );
- triCount = tk_IntNumber;
- if ( triCount >= MAXTRIANGLES ) {
- Error( "Too many triangles in file %s\n", fileName );
- }
- *triangleCount = triCount;
- tList = (triangle_t *) SafeMalloc( MAXTRIANGLES * sizeof( triangle_t ), "Triangle list" );
- *triList = tList;
-
- memset( *triList,0,MAXTRIANGLES * sizeof( triangle_t ) );
- TK_BeyondRequire( TK_C_VERTEX, TK_LIST );
-
-/* rx = ((rotation[0]+90.0)/360.0)*2.0*M_PI;
- //rx = (rotation[0]/360.0)*2.0*M_PI;
- ry = (rotation[1]/360.0)*2.0*M_PI;
- rz = (rotation[2]/360.0)*2.0*M_PI;
- */
- vList = (void *) SafeMalloc( vertexCount * sizeof vList[0], "Vertex list" );
- for ( i = 0; i < vertexCount; i++ )
- {
- TK_BeyondRequire( TK_C_VERTEX, TK_INTNUMBER );
- if ( tk_IntNumber != i ) {
- Error( "File '%s', line %d:\nVertex index mismatch.\n",
- tk_SourceName, tk_Line );
- }
- TK_FetchRequireFetch( TK_COLON );
-
- TK_BeyondRequire( TK_COLON, TK_FLOATNUMBER );
- x = tk_FloatNumber;
- TK_BeyondRequire( TK_COLON, TK_FLOATNUMBER );
- y = tk_FloatNumber;
- TK_BeyondRequire( TK_COLON, TK_FLOATNUMBER );
- z = tk_FloatNumber;
-
-/* x2 = x*cos(rz)+y*sin(rz);
- y2 = -x*sin(rz)+y*cos(rz);
- x = x2;
- y = y2;
- y2 = y*cos(rx)+z*sin(rx);
- z2 = -y*sin(rx)+z*cos(rx);
- y = y2;
- z = z2;
- x2 = x*cos(ry)-z*sin(ry);
- z2 = x*sin(ry)+z*cos(ry);
- x = x2;
- z = z2;
- */
- vList[i].v[0] = x;
- vList[i].v[1] = y;
- vList[i].v[2] = z;
- }
- TK_BeyondRequire( TK_C_FACE, TK_LIST );
- for ( i = 0; i < triCount; i++ )
- {
- TK_BeyondRequire( TK_C_FACE, TK_INTNUMBER );
- if ( tk_IntNumber != i ) {
- Error( "File '%s', line %d:\nTriangle index mismatch.\n",
- tk_SourceName, tk_Line );
- }
- for ( j = 0; j < 3; j++ )
- {
- TK_BeyondRequire( TK_IDENTIFIER, TK_COLON );
- TK_FetchRequire( TK_INTNUMBER );
- if ( tk_IntNumber >= vertexCount ) {
- Error( "File '%s', line %d:\nVertex number"
- " > vertexCount: %d\n", tk_SourceName, tk_Line,
- tk_IntNumber );
- }
- tList[i].verts[2 - j][0] = vList[tk_IntNumber].v[0];
- tList[i].verts[2 - j][1] = vList[tk_IntNumber].v[1];
- tList[i].verts[2 - j][2] = vList[tk_IntNumber].v[2];
-#ifdef _QDATA
- tList[i].indicies[2 - j] = tk_IntNumber;
-#endif
- }
-
-/* printf("Face %i:\n v0: %f, %f, %f\n v1: %f, %f, %f\n"
- " v2: %f, %f, %f\n", i,
- tList[i].verts[0][0],
- tList[i].verts[0][1],
- tList[i].verts[0][2],
- tList[i].verts[1][0],
- tList[i].verts[1][1],
- tList[i].verts[1][2],
- tList[i].verts[2][0],
- tList[i].verts[2][1],
- tList[i].verts[2][2]);
- */
- }
-
- DefaultNodesList( nodesList,num_mesh_nodes,triangleCount );
-}
projects / xonotic / netradiant.git / blobdiff