//
// Written by Curtis Olson, started January 2000.
//
-// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
+// Copyright (C) 2000 Curtis L. Olson - http://www.flightgear.org/~curt
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
-// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// $Id$
//
#ifdef HAVE_CONFIG_H
-#include <config.h>
+# include <simgear_config.h>
#endif
#include <simgear/compiler.h>
+#include <simgear/debug/logstream.hxx>
#include <stdio.h>
#include <time.h>
-#include <zlib.h>
-#include <list>
-#include STL_STRING
+#include <vector>
+#include <string>
+#include <iostream>
#include <simgear/bucket/newbucket.hxx>
+#include <simgear/misc/sg_path.hxx>
#include "lowlevel.hxx"
#include "sg_binobj.hxx"
-#ifdef _MSC_VER
-# include <Win32/mkdir.hpp>
-#endif
-FG_USING_STD( cout );
-FG_USING_STD( endl );
+using std::string;
+using std::vector;
+using std::cout;
+using std::endl;
-enum {
+enum sgObjectTypes {
SG_BOUNDING_SPHERE = 0,
SG_VERTEX_LIST = 1,
+ SG_COLOR_LIST = 4,
SG_NORMAL_LIST = 2,
SG_TEXCOORD_LIST = 3,
+ SG_POINTS = 9,
+
SG_TRIANGLE_FACES = 10,
SG_TRIANGLE_STRIPS = 11,
SG_TRIANGLE_FANS = 12
-} tgObjectTypes;
+};
+
+enum sgIndexTypes {
+ SG_IDX_VERTICES = 0x01,
+ SG_IDX_NORMALS = 0x02,
+ SG_IDX_COLORS = 0x04,
+ SG_IDX_TEXCOORDS = 0x08
+};
+
+enum sgPropertyTypes {
+ SG_MATERIAL = 0,
+ SG_INDEX_TYPES = 1
+};
+
+
+class sgSimpleBuffer {
+
+private:
+
+ char *ptr;
+ unsigned int size;
-enum {
- SG_MATERIAL = 0
-} tgPropertyTypes;
+public:
+
+ inline sgSimpleBuffer( unsigned int s )
+ {
+ size = 1;
+ while ( size < s ) {
+ size *= 2;
+ }
+ SG_LOG(SG_EVENT, SG_DEBUG, "Creating a new buffer of size = " << size);
+ ptr = new char[size];
+ }
+
+ inline ~sgSimpleBuffer() {
+ delete [] ptr;
+ }
+
+ inline unsigned int get_size() const { return size; }
+ inline char *get_ptr() const { return ptr; }
+ inline void resize( unsigned int s ) {
+ if ( s > size ) {
+ if ( ptr != NULL ) {
+ delete [] ptr;
+ }
+ while ( size < s ) {
+ size *= 2;
+ }
+ SG_LOG(SG_EVENT, SG_DEBUG, "resizing buffer to size = " << size);
+ ptr = new char[size];
+ }
+ }
+};
// calculate the center of a list of points, by taking the halfway
// point between the min and max points.
-static Point3D calc_center( point_list& wgs84_nodes ) {
+Point3D sgCalcCenter( point_list& wgs84_nodes ) {
Point3D p, min, max;
if ( wgs84_nodes.size() ) {
}
-// write out the structures to an ASCII file. We assume that the
-// groups come to us sorted by material property. If not, things
-// don't break, but the result won't be as optimal.
-void sgWriteAsciiObj( const string& base, const string& name, const SGBucket& b,
- Point3D gbs_center, float gbs_radius,
- const point_list& wgs84_nodes, const point_list& normals,
- const point_list& texcoords,
- const group_list& tris_v, const group_list& tris_tc,
- const string_list& tri_materials,
- const group_list& strips_v, const group_list& strips_tc,
- const string_list& strip_materials,
- const group_list& fans_v, const group_list& fans_tc,
- const string_list& fan_materials )
-{
- Point3D p;
- int i, j;
- string dir = base + "/" + b.gen_base_path();
- string command = "mkdir -p " + dir;
-#ifdef _MSC_VER
- fg_mkdir( dir.c_str() );
-#else
- system(command.c_str());
-#endif
-
- // string file = dir + "/" + b.gen_index_str();
- string file = dir + "/" + name;
- cout << "Output file = " << file << endl;
-
- FILE *fp;
- if ( (fp = fopen( file.c_str(), "w" )) == NULL ) {
- cout << "ERROR: opening " << file << " for writing!" << endl;
- exit(-1);
- }
-
- cout << "triangles size = " << tris_v.size() << " tri_materials = "
- << tri_materials.size() << endl;
- cout << "strips size = " << strips_v.size() << " strip_materials = "
- << strip_materials.size() << endl;
- cout << "fans size = " << fans_v.size() << " fan_materials = "
- << fan_materials.size() << endl;
-
- cout << "points = " << wgs84_nodes.size() << endl;
- cout << "tex coords = " << texcoords.size() << endl;
- // write headers
- fprintf(fp, "# FGFS Scenery\n");
- fprintf(fp, "# Version %s\n", SG_SCENERY_FILE_FORMAT);
-
- time_t calendar_time = time(NULL);
- struct tm *local_tm;
- local_tm = localtime( &calendar_time );
- char time_str[256];
- strftime( time_str, 256, "%a %b %d %H:%M:%S %Z %Y", local_tm);
- fprintf(fp, "# Created %s\n", time_str );
- fprintf(fp, "\n");
-
- // write bounding sphere
- fprintf(fp, "# gbs %.5f %.5f %.5f %.2f\n",
- gbs_center.x(), gbs_center.y(), gbs_center.z(), gbs_radius);
- fprintf(fp, "\n");
-
- // dump vertex list
- fprintf(fp, "# vertex list\n");
- for ( i = 0; i < (int)wgs84_nodes.size(); ++i ) {
- p = wgs84_nodes[i] - gbs_center;
-
- fprintf(fp, "v %.5f %.5f %.5f\n", p.x(), p.y(), p.z() );
- }
- fprintf(fp, "\n");
-
- fprintf(fp, "# vertex normal list\n");
- for ( i = 0; i < (int)normals.size(); ++i ) {
- p = normals[i];
- fprintf(fp, "vn %.5f %.5f %.5f\n", p.x(), p.y(), p.z() );
- }
- fprintf(fp, "\n");
-
- // dump texture coordinates
- fprintf(fp, "# texture coordinate list\n");
- for ( i = 0; i < (int)texcoords.size(); ++i ) {
- p = texcoords[i];
- fprintf(fp, "vt %.5f %.5f\n", p.x(), p.y() );
+// read object properties
+static void read_object( gzFile fp,
+ int obj_type,
+ int nproperties,
+ int nelements,
+ group_list *vertices,
+ group_list *normals,
+ group_list *colors,
+ group_list *texcoords,
+ string_list *materials )
+{
+ unsigned int nbytes;
+ unsigned char idx_mask;
+ int idx_size;
+ bool do_vertices, do_normals, do_colors, do_texcoords;
+ int j, k, idx;
+ sgSimpleBuffer buf( 32768 ); // 32 Kb
+ char material[256];
+
+ // default values
+ if ( obj_type == SG_POINTS ) {
+ idx_size = 1;
+ idx_mask = SG_IDX_VERTICES;
+ do_vertices = true;
+ do_normals = false;
+ do_colors = false;
+ do_texcoords = false;
+ } else {
+ idx_size = 2;
+ idx_mask = (char)(SG_IDX_VERTICES | SG_IDX_TEXCOORDS);
+ do_vertices = true;
+ do_normals = false;
+ do_colors = false;
+ do_texcoords = true;
}
- fprintf(fp, "\n");
-
- // dump individual triangles if they exist
- if ( tris_v.size() > 0 ) {
- fprintf(fp, "# triangle groups\n");
- int start = 0;
- int end = 1;
- string material;
- while ( start < (int)tri_materials.size() ) {
- // find next group
- material = tri_materials[start];
- while ( (end < (int)tri_materials.size()) &&
- (material == tri_materials[end]) )
- {
- // cout << "end = " << end << endl;
- end++;
+ for ( j = 0; j < nproperties; ++j ) {
+ char prop_type;
+ sgReadChar( fp, &prop_type );
+
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
+ sgReadBytes( fp, nbytes, ptr );
+ if ( prop_type == SG_MATERIAL ) {
+ strncpy( material, ptr, nbytes );
+ material[nbytes] = '\0';
+ // cout << "material type = " << material << endl;
+ } else if ( prop_type == SG_INDEX_TYPES ) {
+ idx_mask = ptr[0];
+ // cout << "idx_mask = " << (int)idx_mask << endl;
+ idx_size = 0;
+ do_vertices = false;
+ do_normals = false;
+ do_colors = false;
+ do_texcoords = false;
+ if ( idx_mask & SG_IDX_VERTICES ) {
+ do_vertices = true;
+ ++idx_size;
}
- // cout << "group = " << start << " to " << end - 1 << endl;
-
- // make a list of points for the group
- point_list group_nodes;
- group_nodes.clear();
- Point3D bs_center;
- double bs_radius = 0;
- for ( i = start; i < end; ++i ) {
- for ( j = 0; j < (int)tris_v[i].size(); ++j ) {
- group_nodes.push_back( wgs84_nodes[ tris_v[i][j] ] );
- bs_center = calc_center( group_nodes );
- bs_radius = sgCalcBoundingRadius( bs_center, group_nodes );
- }
+ if ( idx_mask & SG_IDX_NORMALS ) {
+ do_normals = true;
+ ++idx_size;
}
-
- // write group headers
- fprintf(fp, "\n");
- fprintf(fp, "# usemtl %s\n", material.c_str());
- fprintf(fp, "# bs %.4f %.4f %.4f %.2f\n",
- bs_center.x(), bs_center.y(), bs_center.z(), bs_radius);
-
- // write groups
- for ( i = start; i < end; ++i ) {
- fprintf(fp, "f");
- for ( j = 0; j < (int)tris_v[i].size(); ++j ) {
- fprintf(fp, " %d/%d", tris_v[i][j], tris_tc[i][j] );
- }
- fprintf(fp, "\n");
+ if ( idx_mask & SG_IDX_COLORS ) {
+ do_colors = true;
+ ++idx_size;
+ }
+ if ( idx_mask & SG_IDX_TEXCOORDS ) {
+ do_texcoords = true;
+ ++idx_size;
}
-
- start = end;
- end = start + 1;
}
}
- // dump triangle groups
- if ( strips_v.size() > 0 ) {
- fprintf(fp, "# triangle strips\n");
-
- int start = 0;
- int end = 1;
- string material;
- while ( start < (int)strip_materials.size() ) {
- // find next group
- material = strip_materials[start];
- while ( (end < (int)strip_materials.size()) &&
- (material == strip_materials[end]) )
- {
- // cout << "end = " << end << endl;
- end++;
- }
- // cout << "group = " << start << " to " << end - 1 << endl;
-
- // make a list of points for the group
- point_list group_nodes;
- group_nodes.clear();
- Point3D bs_center;
- double bs_radius = 0;
- for ( i = start; i < end; ++i ) {
- for ( j = 0; j < (int)strips_v[i].size(); ++j ) {
- group_nodes.push_back( wgs84_nodes[ strips_v[i][j] ] );
- bs_center = calc_center( group_nodes );
- bs_radius = sgCalcBoundingRadius( bs_center, group_nodes );
+ for ( j = 0; j < nelements; ++j ) {
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
+ sgReadBytes( fp, nbytes, ptr );
+ int count = nbytes / (idx_size * sizeof(unsigned short));
+ unsigned short *sptr = (unsigned short *)ptr;
+ int_list vs; vs.clear();
+ int_list ns; ns.clear();
+ int_list cs; cs.clear();
+ int_list tcs; tcs.clear();
+ for ( k = 0; k < count; ++k ) {
+ if ( sgIsBigEndian() ) {
+ for ( idx = 0; idx < idx_size; ++idx ) {
+ sgEndianSwap( (uint16_t *)&(sptr[idx]) );
}
}
-
- // write group headers
- fprintf(fp, "\n");
- fprintf(fp, "# usemtl %s\n", material.c_str());
- fprintf(fp, "# bs %.4f %.4f %.4f %.2f\n",
- bs_center.x(), bs_center.y(), bs_center.z(), bs_radius);
-
- // write groups
- for ( i = start; i < end; ++i ) {
- fprintf(fp, "ts");
- for ( j = 0; j < (int)strips_v[i].size(); ++j ) {
- fprintf(fp, " %d/%d", strips_v[i][j], strips_tc[i][j] );
- }
- fprintf(fp, "\n");
+ idx = 0;
+ if ( do_vertices ) {
+ vs.push_back( sptr[idx++] );
}
-
- start = end;
- end = start + 1;
+ if ( do_normals ) {
+ ns.push_back( sptr[idx++] );
+ }
+ if ( do_colors ) {
+ cs.push_back( sptr[idx++] );
+ }
+ if ( do_texcoords ) {
+ tcs.push_back( sptr[idx++] );
+ }
+ // cout << sptr[0] << " ";
+ sptr += idx_size;
}
+ // cout << endl;
+ vertices->push_back( vs );
+ normals->push_back( ns );
+ colors->push_back( cs );
+ texcoords->push_back( tcs );
+ materials->push_back( material );
}
-
- // close the file
- fclose(fp);
-
- command = "gzip --force --best " + file;
- system(command.c_str());
}
// read a binary file and populate the provided structures.
-void sgReadBinObj( const string& file,
- Point3D &gbs_center, float *gbs_radius,
- point_list& wgs84_nodes, point_list& normals,
- point_list& texcoords,
- group_list& tris_v, group_list& tris_tc,
- string_list& tri_materials,
- group_list& strips_v, group_list& strips_tc,
- string_list& strip_materials,
- group_list& fans_v, group_list& fans_tc,
- string_list& fan_materials )
-{
- Point3D p;
- int i, j, k, m;
+bool SGBinObject::read_bin( const string& file ) {
+ SGVec3d p;
+ int i, j, k;
+ unsigned int nbytes;
+ sgSimpleBuffer buf( 32768 ); // 32 Kb
// zero out structures
+ gbs_center = SGVec3d(0, 0, 0);
+ gbs_radius = 0.0;
+
wgs84_nodes.clear();
normals.clear();
texcoords.clear();
+ pts_v.clear();
+ pts_n.clear();
+ pts_c.clear();
+ pts_tc.clear();
+ pt_materials.clear();
+
tris_v.clear();
+ tris_n.clear();
+ tris_c.clear();
tris_tc.clear();
tri_materials.clear();
strips_v.clear();
+ strips_n.clear();
+ strips_c.clear();
strips_tc.clear();
strip_materials.clear();
fans_v.clear();
+ fans_n.clear();
+ fans_c.clear();
fans_tc.clear();
fan_materials.clear();
-
- cout << "Loading binary input file = " << file << endl;
gzFile fp;
if ( (fp = gzopen( file.c_str(), "rb" )) == NULL ) {
string filegz = file + ".gz";
if ( (fp = gzopen( filegz.c_str(), "rb" )) == NULL ) {
- cout << "ERROR: opening " << file << " or " << filegz
- << "for reading!" << endl;
- exit(-1);
+ SG_LOG( SG_EVENT, SG_ALERT,
+ "ERROR: opening " << file << " or " << filegz << " for reading!");
+
+ return false;
}
}
+ sgClearReadError();
+
// read headers
- int header, version;
- sgReadInt( fp, &header );
- if ( ((header & 0xFF000000) >> 24) == 'T' &&
+ unsigned int header;
+ sgReadUInt( fp, &header );
+ if ( ((header & 0xFF000000) >> 24) == 'S' &&
((header & 0x00FF0000) >> 16) == 'G' ) {
- cout << "Good header" << endl;
+ // cout << "Good header" << endl;
// read file version
version = (header & 0x0000FFFF);
- cout << "File version = " << version << endl;
+ // cout << "File version = " << version << endl;
+ } else {
+ // close the file before we return
+ gzclose(fp);
+
+ return false;
}
// read creation time
- time_t calendar_time;
- sgReadLong( fp, &calendar_time );
+ unsigned int foo_calendar_time;
+ sgReadUInt( fp, &foo_calendar_time );
+
+#if 0
+ time_t calendar_time = foo_calendar_time;
+ // The following code has a global effect on the host application
+ // and can screws up the time elsewhere. It should be avoided
+ // unless you need this for debugging in which case you should
+ // disable it again once the debugging task is finished.
struct tm *local_tm;
local_tm = localtime( &calendar_time );
char time_str[256];
strftime( time_str, 256, "%a %b %d %H:%M:%S %Z %Y", local_tm);
- cout << "File created on " << time_str << endl;
+ SG_LOG( SG_EVENT, SG_DEBUG, "File created on " << time_str);
+#endif
// read number of top level objects
- short nobjects;
- sgReadShort( fp, &nobjects );
- cout << "Total objects to read = " << nobjects << endl;
+ unsigned short nobjects;
+ if ( version >= 7 ) {
+ sgReadUShort( fp, &nobjects );
+ } else {
+ short tmp;
+ sgReadShort( fp, &tmp );
+ nobjects = tmp;
+ }
+ // cout << "Total objects to read = " << nobjects << endl;
// read in objects
for ( i = 0; i < nobjects; ++i ) {
// read object header
char obj_type;
- short nproperties, nelements;
+ unsigned short nproperties, nelements;
sgReadChar( fp, &obj_type );
- sgReadShort( fp, &nproperties );
- sgReadShort( fp, &nelements );
+ if ( version >= 7 ) {
+ sgReadUShort( fp, &nproperties );
+ sgReadUShort( fp, &nelements );
+ } else {
+ short tmp;
+ sgReadShort( fp, &tmp );
+ nproperties = tmp;
+ sgReadShort( fp, &tmp );
+ nelements = tmp;
+ }
- cout << "object " << i << " = " << (int)obj_type << " props = "
- << nproperties << " elements = " << nelements << endl;
+ // cout << "object " << i << " = " << (int)obj_type << " props = "
+ // << nproperties << " elements = " << nelements << endl;
if ( obj_type == SG_BOUNDING_SPHERE ) {
// read bounding sphere properties
char prop_type;
sgReadChar( fp, &prop_type );
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
}
// read bounding sphere elements
for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
double *dptr = (double *)ptr;
- gbs_center = Point3D( dptr[0], dptr[1], dptr[2] );
- cout << "Center = " << gbs_center << endl;
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (uint64_t *)&(dptr[0]) );
+ sgEndianSwap( (uint64_t *)&(dptr[1]) );
+ sgEndianSwap( (uint64_t *)&(dptr[2]) );
+ }
+ gbs_center = SGVec3d( dptr[0], dptr[1], dptr[2] );
+ // cout << "Center = " << gbs_center << endl;
ptr += sizeof(double) * 3;
float *fptr = (float *)ptr;
- *gbs_radius = fptr[0];
- cout << "Bounding radius = " << *gbs_radius << endl;
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (uint32_t *)fptr );
+ }
+ gbs_radius = fptr[0];
+ // cout << "Bounding radius = " << gbs_radius << endl;
}
} else if ( obj_type == SG_VERTEX_LIST ) {
// read vertex list properties
char prop_type;
sgReadChar( fp, &prop_type );
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
}
// read vertex list elements
for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
int count = nbytes / (sizeof(float) * 3);
float *fptr = (float *)ptr;
+ wgs84_nodes.reserve( count );
for ( k = 0; k < count; ++k ) {
- p = Point3D( fptr[0], fptr[1], fptr[2] );
- cout << "node = " << p << endl;
- wgs84_nodes.push_back( p );
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (uint32_t *)&(fptr[0]) );
+ sgEndianSwap( (uint32_t *)&(fptr[1]) );
+ sgEndianSwap( (uint32_t *)&(fptr[2]) );
+ }
+ wgs84_nodes.push_back( SGVec3d(fptr[0], fptr[1], fptr[2]) );
fptr += 3;
}
}
- } else if ( obj_type == SG_NORMAL_LIST ) {
- // read normal list properties
+ } else if ( obj_type == SG_COLOR_LIST ) {
+ // read color list properties
for ( j = 0; j < nproperties; ++j ) {
char prop_type;
sgReadChar( fp, &prop_type );
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
}
- // read normal list elements
+ // read color list elements
for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
- int count = nbytes / 3;
+ int count = nbytes / (sizeof(float) * 4);
+ float *fptr = (float *)ptr;
+ colors.reserve(count);
for ( k = 0; k < count; ++k ) {
- p = Point3D( ptr[0] / 256.0, ptr[1] / 256.0,
- ptr[2] / 256.0 );
- cout << "normal = " << p << endl;
- normals.push_back( p );
- ptr += 3;
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (uint32_t *)&(fptr[0]) );
+ sgEndianSwap( (uint32_t *)&(fptr[1]) );
+ sgEndianSwap( (uint32_t *)&(fptr[2]) );
+ sgEndianSwap( (uint32_t *)&(fptr[3]) );
+ }
+ SGVec4f color( fptr[0], fptr[1], fptr[2], fptr[3] );
+ colors.push_back( color );
+ fptr += 4;
}
}
- } else if ( obj_type == SG_TEXCOORD_LIST ) {
- // read texcoord list properties
+ } else if ( obj_type == SG_NORMAL_LIST ) {
+ // read normal list properties
for ( j = 0; j < nproperties; ++j ) {
char prop_type;
sgReadChar( fp, &prop_type );
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
}
- // read texcoord list elements
+ // read normal list elements
for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ unsigned char *ptr = (unsigned char *)(buf.get_ptr());
sgReadBytes( fp, nbytes, ptr );
- int count = nbytes / (sizeof(float) * 2);
- float *fptr = (float *)ptr;
+ int count = nbytes / 3;
+ normals.reserve( count );
for ( k = 0; k < count; ++k ) {
- p = Point3D( fptr[0], fptr[1], 0 );
- cout << "texcoord = " << p << endl;
- texcoords.push_back( p );
- fptr += 2;
+ SGVec3f normal((ptr[0]) / 127.5 - 1.0,
+ (ptr[1]) / 127.5 - 1.0,
+ (ptr[2]) / 127.5 - 1.0);
+
+ normals.push_back(normalize(normal));
+ ptr += 3;
}
}
- } else if ( obj_type == SG_TRIANGLE_FACES ) {
- // read triangle face properties
+ } else if ( obj_type == SG_TEXCOORD_LIST ) {
+ // read texcoord list properties
for ( j = 0; j < nproperties; ++j ) {
char prop_type;
sgReadChar( fp, &prop_type );
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
- if ( prop_type == SG_MATERIAL ) {
- char material[256];
- strncpy( material, ptr, nbytes );
- material[nbytes] = '\0';
- cout << "material type = " << material << endl;
- tri_materials.push_back( material );
- }
}
- // read triangle face elements
+ // read texcoord list elements
for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
- int count = nbytes / (sizeof(short) * 2 * 3);
- short *sptr = (short *)ptr;
- int_list vs, tcs;
+ int count = nbytes / (sizeof(float) * 2);
+ float *fptr = (float *)ptr;
+ texcoords.reserve(count);
for ( k = 0; k < count; ++k ) {
- vs.clear(); tcs.clear();
- for ( m = 0; m < 3; ++m ) {
- vs.push_back( sptr[0] );
- tcs.push_back( sptr[1] );
- cout << sptr[0] << "/" << sptr[1] << " ";
- sptr += 2;
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (uint32_t *)&(fptr[0]) );
+ sgEndianSwap( (uint32_t *)&(fptr[1]) );
}
- cout << endl;
- tris_v.push_back( vs );
- tris_tc.push_back( tcs );
+ texcoords.push_back( SGVec2f( fptr[0], fptr[1] ) );
+ fptr += 2;
}
}
+ } else if ( obj_type == SG_POINTS ) {
+ // read point elements
+ read_object( fp, SG_POINTS, nproperties, nelements,
+ &pts_v, &pts_n, &pts_c, &pts_tc, &pt_materials );
+ } else if ( obj_type == SG_TRIANGLE_FACES ) {
+ // read triangle face properties
+ read_object( fp, SG_TRIANGLE_FACES, nproperties, nelements,
+ &tris_v, &tris_n, &tris_c, &tris_tc, &tri_materials );
} else if ( obj_type == SG_TRIANGLE_STRIPS ) {
// read triangle strip properties
- for ( j = 0; j < nproperties; ++j ) {
- char prop_type;
- sgReadChar( fp, &prop_type );
-
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
- sgReadBytes( fp, nbytes, ptr );
- if ( prop_type == SG_MATERIAL ) {
- char material[256];
- strncpy( material, ptr, nbytes );
- material[nbytes] = '\0';
- cout << "material type = " << material << endl;
- strip_materials.push_back( material );
- }
- }
-
- // read triangle strip elements
- for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
- sgReadBytes( fp, nbytes, ptr );
- int count = nbytes / (sizeof(short) * 2 * 3);
- short *sptr = (short *)ptr;
- int_list vs, tcs;
- vs.clear(); tcs.clear();
- for ( k = 0; k < count; ++k ) {
- vs.push_back( sptr[0] );
- tcs.push_back( sptr[1] );
- cout << sptr[0] << "/" << sptr[1] << " ";
- sptr += 2;
- }
- cout << endl;
- strips_v.push_back( vs );
- strips_tc.push_back( tcs );
- }
+ read_object( fp, SG_TRIANGLE_STRIPS, nproperties, nelements,
+ &strips_v, &strips_n, &strips_c, &strips_tc,
+ &strip_materials );
} else if ( obj_type == SG_TRIANGLE_FANS ) {
// read triangle fan properties
- for ( j = 0; j < nproperties; ++j ) {
- char prop_type;
- sgReadChar( fp, &prop_type );
-
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
- sgReadBytes( fp, nbytes, ptr );
- if ( prop_type == SG_MATERIAL ) {
- char material[256];
- strncpy( material, ptr, nbytes );
- material[nbytes] = '\0';
- cout << "material type = " << material << endl;
- fan_materials.push_back( material );
- }
- }
-
- // read triangle fan elements
- for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
- sgReadBytes( fp, nbytes, ptr );
- int count = nbytes / (sizeof(short) * 2 * 3);
- short *sptr = (short *)ptr;
- int_list vs, tcs;
- vs.clear(); tcs.clear();
- for ( k = 0; k < count; ++k ) {
- vs.push_back( sptr[0] );
- tcs.push_back( sptr[1] );
- cout << sptr[0] << "/" << sptr[1] << " ";
- sptr += 2;
- }
- cout << endl;
- fans_v.push_back( vs );
- fans_tc.push_back( tcs );
- }
+ read_object( fp, SG_TRIANGLE_FANS, nproperties, nelements,
+ &fans_v, &fans_n, &fans_c, &fans_tc, &fan_materials );
} else {
// unknown object type, just skip
char prop_type;
sgReadChar( fp, &prop_type );
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "property size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "property size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
}
// read elements
for ( j = 0; j < nelements; ++j ) {
- int nbytes;
- sgReadInt( fp, &nbytes );
- cout << "element size = " << nbytes << endl;
- char buf[nbytes];
- char *ptr = buf;
+ sgReadUInt( fp, &nbytes );
+ // cout << "element size = " << nbytes << endl;
+ if ( nbytes > buf.get_size() ) { buf.resize( nbytes ); }
+ char *ptr = buf.get_ptr();
sgReadBytes( fp, nbytes, ptr );
}
}
// close the file
gzclose(fp);
+
+ if ( sgReadError() ) {
+ cout << "We detected an error while reading the file." << endl;
+ return false;
+ }
+
+ return true;
}
// write out the structures to a binary file. We assume that the
// groups come to us sorted by material property. If not, things
// don't break, but the result won't be as optimal.
-void sgWriteBinObj( const string& base, const string& name, const SGBucket& b,
- Point3D gbs_center, float gbs_radius,
- const point_list& wgs84_nodes, const point_list& normals,
- const point_list& texcoords,
- const group_list& tris_v, const group_list& tris_tc,
- const string_list& tri_materials,
- const group_list& strips_v, const group_list& strips_tc,
- const string_list& strip_materials,
- const group_list& fans_v, const group_list& fans_tc,
- const string_list& fan_materials )
+bool SGBinObject::write_bin( const string& base, const string& name,
+ const SGBucket& b )
{
- Point3D p;
- sgVec2 t;
- sgVec3 pt;
int i, j;
+ unsigned char idx_mask;
+ int idx_size;
- string dir = base + "/" + b.gen_base_path();
- string command = "mkdir -p " + dir;
-#ifdef _MSC_VER
- fg_mkdir( dir.c_str() );
-#else
- system(command.c_str());
-#endif
-
- string file = dir + "/" + name + ".gz";
- cout << "Output file = " << file << endl;
+ SGPath file = base + "/" + b.gen_base_path() + "/" + name + ".gz";
+ file.create_dir( 0755 );
+ cout << "Output file = " << file.str() << endl;
gzFile fp;
if ( (fp = gzopen( file.c_str(), "wb9" )) == NULL ) {
- cout << "ERROR: opening " << file << " for writing!" << endl;
- exit(-1);
+ cout << "ERROR: opening " << file.str() << " for writing!" << endl;
+ return false;
}
+ sgClearWriteError();
+
+ cout << "points size = " << pts_v.size() << " pt_materials = "
+ << pt_materials.size() << endl;
cout << "triangles size = " << tris_v.size() << " tri_materials = "
<< tri_materials.size() << endl;
cout << "strips size = " << strips_v.size() << " strip_materials = "
cout << "fans size = " << fans_v.size() << " fan_materials = "
<< fan_materials.size() << endl;
- cout << "points = " << wgs84_nodes.size() << endl;
+ cout << "nodes = " << wgs84_nodes.size() << endl;
+ cout << "colors = " << colors.size() << endl;
+ cout << "normals = " << normals.size() << endl;
cout << "tex coords = " << texcoords.size() << endl;
// write header magic
- sgWriteInt( fp, SG_FILE_MAGIC_NUMBER );
+ sgWriteUInt( fp, SG_FILE_MAGIC_NUMBER );
time_t calendar_time = time(NULL);
- sgWriteLong( fp, (long int)calendar_time );
+ sgWriteLong( fp, (int32_t)calendar_time );
// calculate and write number of top level objects
string material;
int start;
int end;
- short nobjects = 0;
+ unsigned short nobjects = 0;
nobjects++; // for gbs
nobjects++; // for vertices
+ nobjects++; // for colors
nobjects++; // for normals
nobjects++; // for texcoords
+ // points
+ unsigned short npts = 0;
+ start = 0; end = 1;
+ while ( start < (int)pt_materials.size() ) {
+ material = pt_materials[start];
+ while ( (end < (int)pt_materials.size()) &&
+ (material == pt_materials[end]) ) {
+ end++;
+ }
+ npts++;
+ start = end; end = start + 1;
+ }
+ nobjects += npts;
+
// tris
- short ntris = 0;
+ unsigned short ntris = 0;
start = 0; end = 1;
while ( start < (int)tri_materials.size() ) {
material = tri_materials[start];
nobjects += ntris;
// strips
- short nstrips = 0;
+ unsigned short nstrips = 0;
start = 0; end = 1;
while ( start < (int)strip_materials.size() ) {
material = strip_materials[start];
nobjects += nstrips;
// fans
- short nfans = 0;
+ unsigned short nfans = 0;
start = 0; end = 1;
while ( start < (int)fan_materials.size() ) {
material = fan_materials[start];
nobjects += nfans;
cout << "total top level objects = " << nobjects << endl;
- sgWriteShort( fp, nobjects );
+ sgWriteUShort( fp, nobjects );
// write bounding sphere
sgWriteChar( fp, (char)SG_BOUNDING_SPHERE ); // type
- sgWriteShort( fp, 0 ); // nproperties
- sgWriteShort( fp, 1 ); // nelements
+ sgWriteUShort( fp, 0 ); // nproperties
+ sgWriteUShort( fp, 1 ); // nelements
- sgWriteInt( fp, sizeof(double) * 3 + sizeof(float) ); // nbytes
+ sgWriteUInt( fp, sizeof(double) * 3 + sizeof(float) ); // nbytes
sgdVec3 center;
sgdSetVec3( center, gbs_center.x(), gbs_center.y(), gbs_center.z() );
sgWritedVec3( fp, center );
// dump vertex list
sgWriteChar( fp, (char)SG_VERTEX_LIST ); // type
- sgWriteShort( fp, 0 ); // nproperties
- sgWriteShort( fp, 1 ); // nelements
- sgWriteInt( fp, wgs84_nodes.size() * sizeof(float) * 3 ); // nbytes
+ sgWriteUShort( fp, 0 ); // nproperties
+ sgWriteUShort( fp, 1 ); // nelements
+ sgWriteUInt( fp, wgs84_nodes.size() * sizeof(float) * 3 ); // nbytes
for ( i = 0; i < (int)wgs84_nodes.size(); ++i ) {
- p = wgs84_nodes[i] - gbs_center;
- sgSetVec3( pt, p.x(), p.y(), p.z() );
- sgWriteVec3( fp, pt );
+ SGVec3f p = toVec3f(wgs84_nodes[i] - gbs_center);
+ sgWriteVec3( fp, p.data() );
+ }
+
+ // dump vertex color list
+ sgWriteChar( fp, (char)SG_COLOR_LIST ); // type
+ sgWriteUShort( fp, 0 ); // nproperties
+ sgWriteUShort( fp, 1 ); // nelements
+ sgWriteUInt( fp, colors.size() * sizeof(float) * 4 ); // nbytes
+ for ( i = 0; i < (int)colors.size(); ++i ) {
+ sgWriteVec4( fp, colors[i].data() );
}
// dump vertex normal list
sgWriteChar( fp, (char)SG_NORMAL_LIST ); // type
- sgWriteShort( fp, 0 ); // nproperties
- sgWriteShort( fp, 1 ); // nelements
- sgWriteInt( fp, normals.size() * 3 ); // nbytes
+ sgWriteUShort( fp, 0 ); // nproperties
+ sgWriteUShort( fp, 1 ); // nelements
+ sgWriteUInt( fp, normals.size() * 3 ); // nbytes
char normal[3];
for ( i = 0; i < (int)normals.size(); ++i ) {
- p = normals[i];
- normal[0] = (char)(p.x() * 256);
- normal[1] = (char)(p.y() * 256);
- normal[2] = (char)(p.z() * 256);
+ SGVec3f p = normals[i];
+ normal[0] = (unsigned char)((p.x() + 1.0) * 127.5);
+ normal[1] = (unsigned char)((p.y() + 1.0) * 127.5);
+ normal[2] = (unsigned char)((p.z() + 1.0) * 127.5);
sgWriteBytes( fp, 3, normal );
}
// dump texture coordinates
sgWriteChar( fp, (char)SG_TEXCOORD_LIST ); // type
- sgWriteShort( fp, 0 ); // nproperties
- sgWriteShort( fp, 1 ); // nelements
- sgWriteInt( fp, texcoords.size() * sizeof(float) * 2 ); // nbytes
+ sgWriteUShort( fp, 0 ); // nproperties
+ sgWriteUShort( fp, 1 ); // nelements
+ sgWriteUInt( fp, texcoords.size() * sizeof(float) * 2 ); // nbytes
for ( i = 0; i < (int)texcoords.size(); ++i ) {
- p = texcoords[i];
- sgSetVec2( t, p.x(), p.y() );
- sgWriteVec2( fp, t );
+ sgWriteVec2( fp, texcoords[i].data() );
+ }
+
+ // dump point groups if they exist
+ if ( pts_v.size() > 0 ) {
+ int start = 0;
+ int end = 1;
+ string material;
+ while ( start < (int)pt_materials.size() ) {
+ // find next group
+ material = pt_materials[start];
+ while ( (end < (int)pt_materials.size()) &&
+ (material == pt_materials[end]) )
+ {
+ // cout << "end = " << end << endl;
+ end++;
+ }
+ // cout << "group = " << start << " to " << end - 1 << endl;
+
+ // write group headers
+ sgWriteChar( fp, (char)SG_POINTS ); // type
+ sgWriteUShort( fp, 2 ); // nproperties
+ sgWriteUShort( fp, end - start ); // nelements
+
+ sgWriteChar( fp, (char)SG_MATERIAL ); // property
+ sgWriteUInt( fp, material.length() ); // nbytes
+ sgWriteBytes( fp, material.length(), material.c_str() );
+
+ idx_mask = 0;
+ idx_size = 0;
+ if ( pts_v.size() ) { idx_mask |= SG_IDX_VERTICES; ++idx_size; }
+ if ( pts_n.size() ) { idx_mask |= SG_IDX_NORMALS; ++idx_size; }
+ if ( pts_c.size() ) { idx_mask |= SG_IDX_COLORS; ++idx_size; }
+ if ( pts_tc.size() ) { idx_mask |= SG_IDX_TEXCOORDS; ++idx_size; }
+ sgWriteChar( fp, (char)SG_INDEX_TYPES ); // property
+ sgWriteUInt( fp, 1 ); // nbytes
+ sgWriteChar( fp, idx_mask );
+
+ // write strips
+ for ( i = start; i < end; ++i ) {
+ // nbytes
+ sgWriteUInt( fp, pts_v[i].size() * idx_size
+ * sizeof(unsigned short) );
+ for ( j = 0; j < (int)pts_v[i].size(); ++j ) {
+ if ( pts_v.size() ) {
+ sgWriteUShort( fp, (unsigned short)pts_v[i][j] );
+ }
+ if ( pts_n.size() ) {
+ sgWriteUShort( fp, (unsigned short)pts_n[i][j] );
+ }
+ if ( pts_c.size() ) {
+ sgWriteUShort( fp, (unsigned short)pts_c[i][j] );
+ }
+ if ( pts_tc.size() ) {
+ sgWriteUShort( fp, (unsigned short)pts_tc[i][j] );
+ }
+ }
+ }
+
+ start = end;
+ end = start + 1;
+ }
}
// dump individual triangles if they exist
// find next group
material = tri_materials[start];
while ( (end < (int)tri_materials.size()) &&
- (material == tri_materials[end]) )
+ (material == tri_materials[end]) &&
+ 3*(end-start) < 32760 )
{
// cout << "end = " << end << endl;
end++;
// write group headers
sgWriteChar( fp, (char)SG_TRIANGLE_FACES ); // type
- sgWriteShort( fp, 1 ); // nproperties
- sgWriteShort( fp, 1 ); // nelements
+ sgWriteUShort( fp, 2 ); // nproperties
+ sgWriteUShort( fp, 1 ); // nelements
sgWriteChar( fp, (char)SG_MATERIAL ); // property
- sgWriteInt( fp, material.length() ); // nbytes
+ sgWriteUInt( fp, material.length() ); // nbytes
sgWriteBytes( fp, material.length(), material.c_str() );
- sgWriteInt( fp, (end - start) * 3 * 2 * sizeof(short) ); // nbytes
+ idx_mask = 0;
+ idx_size = 0;
+ if ( tris_v.size() ) { idx_mask |= SG_IDX_VERTICES; ++idx_size; }
+ if ( tris_n.size() ) { idx_mask |= SG_IDX_NORMALS; ++idx_size; }
+ if ( tris_c.size() ) { idx_mask |= SG_IDX_COLORS; ++idx_size; }
+ if ( tris_tc.size() ) { idx_mask |= SG_IDX_TEXCOORDS; ++idx_size; }
+ sgWriteChar( fp, (char)SG_INDEX_TYPES ); // property
+ sgWriteUInt( fp, 1 ); // nbytes
+ sgWriteChar( fp, idx_mask );
+
+ // nbytes
+ sgWriteUInt( fp, (end - start) * 3 * idx_size
+ * sizeof(unsigned short) );
// write group
for ( i = start; i < end; ++i ) {
for ( j = 0; j < 3; ++j ) {
- sgWriteShort( fp, (short)tris_v[i][j] );
- sgWriteShort( fp, (short)tris_tc[i][j] );
+ if ( tris_v.size() ) {
+ sgWriteUShort( fp, (unsigned short)tris_v[i][j] );
+ }
+ if ( tris_n.size() ) {
+ sgWriteUShort( fp, (unsigned short)tris_n[i][j] );
+ }
+ if ( tris_c.size() ) {
+ sgWriteUShort( fp, (unsigned short)tris_c[i][j] );
+ }
+ if ( tris_tc.size() ) {
+ sgWriteUShort( fp, (unsigned short)tris_tc[i][j] );
+ }
}
}
// write group headers
sgWriteChar( fp, (char)SG_TRIANGLE_STRIPS ); // type
- sgWriteShort( fp, 1 ); // nproperties
- sgWriteShort( fp, end - start ); // nelements
+ sgWriteUShort( fp, 2 ); // nproperties
+ sgWriteUShort( fp, end - start ); // nelements
- sgWriteChar( fp, (char)SG_MATERIAL ); // property
- sgWriteInt( fp, material.length() ); // nbytes
+ sgWriteChar( fp, (char)SG_MATERIAL ); // property
+ sgWriteUInt( fp, material.length() ); // nbytes
sgWriteBytes( fp, material.length(), material.c_str() );
+ idx_mask = 0;
+ idx_size = 0;
+ if ( strips_v.size() ) { idx_mask |= SG_IDX_VERTICES; ++idx_size; }
+ if ( strips_n.size() ) { idx_mask |= SG_IDX_NORMALS; ++idx_size; }
+ if ( strips_c.size() ) { idx_mask |= SG_IDX_COLORS; ++idx_size; }
+ if ( strips_tc.size() ) { idx_mask |= SG_IDX_TEXCOORDS; ++idx_size;}
+ sgWriteChar( fp, (char)SG_INDEX_TYPES ); // property
+ sgWriteUInt( fp, 1 ); // nbytes
+ sgWriteChar( fp, idx_mask );
+
// write strips
for ( i = start; i < end; ++i ) {
// nbytes
- sgWriteInt( fp, strips_v[i].size() * 2 * sizeof(short) );
+ sgWriteUInt( fp, strips_v[i].size() * idx_size
+ * sizeof(unsigned short));
for ( j = 0; j < (int)strips_v[i].size(); ++j ) {
- sgWriteShort( fp, (short)strips_v[i][j] );
- sgWriteShort( fp, (short)strips_tc[i][j] );
+ if ( strips_v.size() ) {
+ sgWriteUShort( fp, (unsigned short)strips_v[i][j] );
+ }
+ if ( strips_n.size() ) {
+ sgWriteUShort( fp, (unsigned short)strips_n[i][j] );
+ }
+ if ( strips_c.size() ) {
+ sgWriteUShort( fp, (unsigned short)strips_c[i][j] );
+ }
+ if ( strips_tc.size() ) {
+ sgWriteUShort( fp, (unsigned short)strips_tc[i][j] );
+ }
}
}
// write group headers
sgWriteChar( fp, (char)SG_TRIANGLE_FANS ); // type
- sgWriteShort( fp, 1 ); // nproperties
- sgWriteShort( fp, end - start ); // nelements
+ sgWriteUShort( fp, 2 ); // nproperties
+ sgWriteUShort( fp, end - start ); // nelements
sgWriteChar( fp, (char)SG_MATERIAL ); // property
- sgWriteInt( fp, material.length() ); // nbytes
+ sgWriteUInt( fp, material.length() ); // nbytes
sgWriteBytes( fp, material.length(), material.c_str() );
+ idx_mask = 0;
+ idx_size = 0;
+ if ( fans_v.size() ) { idx_mask |= SG_IDX_VERTICES; ++idx_size; }
+ if ( fans_n.size() ) { idx_mask |= SG_IDX_NORMALS; ++idx_size; }
+ if ( fans_c.size() ) { idx_mask |= SG_IDX_COLORS; ++idx_size; }
+ if ( fans_tc.size() ) { idx_mask |= SG_IDX_TEXCOORDS; ++idx_size; }
+ sgWriteChar( fp, (char)SG_INDEX_TYPES ); // property
+ sgWriteUInt( fp, 1 ); // nbytes
+ sgWriteChar( fp, idx_mask );
+
// write fans
for ( i = start; i < end; ++i ) {
// nbytes
- sgWriteInt( fp, fans_v[i].size() * 2 * sizeof(short) );
+ sgWriteUInt( fp, fans_v[i].size() * idx_size
+ * sizeof(unsigned short) );
for ( j = 0; j < (int)fans_v[i].size(); ++j ) {
- sgWriteShort( fp, (short)fans_v[i][j] );
- sgWriteShort( fp, (short)fans_tc[i][j] );
+ if ( fans_v.size() ) {
+ sgWriteUShort( fp, (unsigned short)fans_v[i][j] );
+ }
+ if ( fans_n.size() ) {
+ sgWriteUShort( fp, (unsigned short)fans_n[i][j] );
+ }
+ if ( fans_c.size() ) {
+ sgWriteUShort( fp, (unsigned short)fans_c[i][j] );
+ }
+ if ( fans_tc.size() ) {
+ sgWriteUShort( fp, (unsigned short)fans_tc[i][j] );
+ }
}
}
// close the file
gzclose(fp);
+
+ if ( sgWriteError() ) {
+ cout << "We detected an error while writing the file." << endl;
+ return false;
+ }
+
+ return true;
+}
+
+
+// write out the structures to an ASCII file. We assume that the
+// groups come to us sorted by material property. If not, things
+// don't break, but the result won't be as optimal.
+bool SGBinObject::write_ascii( const string& base, const string& name,
+ const SGBucket& b )
+{
+ int i, j;
+
+ SGPath file = base + "/" + b.gen_base_path() + "/" + name;
+ file.create_dir( 0755 );
+ cout << "Output file = " << file.str() << endl;
+
+ FILE *fp;
+ if ( (fp = fopen( file.c_str(), "w" )) == NULL ) {
+ cout << "ERROR: opening " << file.str() << " for writing!" << endl;
+ return false;
+ }
+
+ cout << "triangles size = " << tris_v.size() << " tri_materials = "
+ << tri_materials.size() << endl;
+ cout << "strips size = " << strips_v.size() << " strip_materials = "
+ << strip_materials.size() << endl;
+ cout << "fans size = " << fans_v.size() << " fan_materials = "
+ << fan_materials.size() << endl;
+
+ cout << "points = " << wgs84_nodes.size() << endl;
+ cout << "tex coords = " << texcoords.size() << endl;
+ // write headers
+ fprintf(fp, "# FGFS Scenery\n");
+ fprintf(fp, "# Version %s\n", SG_SCENERY_FILE_FORMAT);
+
+ time_t calendar_time = time(NULL);
+ struct tm *local_tm;
+ local_tm = localtime( &calendar_time );
+ char time_str[256];
+ strftime( time_str, 256, "%a %b %d %H:%M:%S %Z %Y", local_tm);
+ fprintf(fp, "# Created %s\n", time_str );
+ fprintf(fp, "\n");
+
+ // write bounding sphere
+ fprintf(fp, "# gbs %.5f %.5f %.5f %.2f\n",
+ gbs_center.x(), gbs_center.y(), gbs_center.z(), gbs_radius);
+ fprintf(fp, "\n");
+
+ // dump vertex list
+ fprintf(fp, "# vertex list\n");
+ for ( i = 0; i < (int)wgs84_nodes.size(); ++i ) {
+ SGVec3d p = wgs84_nodes[i] - gbs_center;
+
+ fprintf(fp, "v %.5f %.5f %.5f\n", p.x(), p.y(), p.z() );
+ }
+ fprintf(fp, "\n");
+
+ fprintf(fp, "# vertex normal list\n");
+ for ( i = 0; i < (int)normals.size(); ++i ) {
+ SGVec3f p = normals[i];
+ fprintf(fp, "vn %.5f %.5f %.5f\n", p.x(), p.y(), p.z() );
+ }
+ fprintf(fp, "\n");
+
+ // dump texture coordinates
+ fprintf(fp, "# texture coordinate list\n");
+ for ( i = 0; i < (int)texcoords.size(); ++i ) {
+ SGVec2f p = texcoords[i];
+ fprintf(fp, "vt %.5f %.5f\n", p.x(), p.y() );
+ }
+ fprintf(fp, "\n");
+
+ // dump individual triangles if they exist
+ if ( tris_v.size() > 0 ) {
+ fprintf(fp, "# triangle groups\n");
+
+ int start = 0;
+ int end = 1;
+ string material;
+ while ( start < (int)tri_materials.size() ) {
+ // find next group
+ material = tri_materials[start];
+ while ( (end < (int)tri_materials.size()) &&
+ (material == tri_materials[end]) )
+ {
+ // cout << "end = " << end << endl;
+ end++;
+ }
+ // cout << "group = " << start << " to " << end - 1 << endl;
+
+ // make a list of points for the group
+ point_list group_nodes;
+ group_nodes.clear();
+ SGVec3d bs_center;
+ double bs_radius = 0;
+ for ( i = start; i < end; ++i ) {
+ for ( j = 0; j < (int)tris_v[i].size(); ++j ) {
+ group_nodes.push_back( Point3D::fromSGVec3(wgs84_nodes[ tris_v[i][j] ]) );
+ bs_center = sgCalcCenter( group_nodes ).toSGVec3d();
+ bs_radius = sgCalcBoundingRadius( Point3D::fromSGVec3(bs_center), group_nodes );
+ }
+ }
+
+ // write group headers
+ fprintf(fp, "\n");
+ fprintf(fp, "# usemtl %s\n", material.c_str());
+ fprintf(fp, "# bs %.4f %.4f %.4f %.2f\n",
+ bs_center.x(), bs_center.y(), bs_center.z(), bs_radius);
+
+ // write groups
+ for ( i = start; i < end; ++i ) {
+ fprintf(fp, "f");
+ for ( j = 0; j < (int)tris_v[i].size(); ++j ) {
+ fprintf(fp, " %d/%d", tris_v[i][j], tris_tc[i][j] );
+ }
+ fprintf(fp, "\n");
+ }
+
+ start = end;
+ end = start + 1;
+ }
+ }
+
+ // dump triangle groups
+ if ( strips_v.size() > 0 ) {
+ fprintf(fp, "# triangle strips\n");
+
+ int start = 0;
+ int end = 1;
+ string material;
+ while ( start < (int)strip_materials.size() ) {
+ // find next group
+ material = strip_materials[start];
+ while ( (end < (int)strip_materials.size()) &&
+ (material == strip_materials[end]) )
+ {
+ // cout << "end = " << end << endl;
+ end++;
+ }
+ // cout << "group = " << start << " to " << end - 1 << endl;
+
+ // make a list of points for the group
+ point_list group_nodes;
+ group_nodes.clear();
+ SGVec3d bs_center;
+ double bs_radius = 0;
+ for ( i = start; i < end; ++i ) {
+ for ( j = 0; j < (int)strips_v[i].size(); ++j ) {
+ group_nodes.push_back( Point3D::fromSGVec3(wgs84_nodes[ strips_v[i][j] ]) );
+ bs_center = sgCalcCenter( group_nodes ).toSGVec3d();
+ bs_radius = sgCalcBoundingRadius( Point3D::fromSGVec3(bs_center), group_nodes );
+ }
+ }
+
+ // write group headers
+ fprintf(fp, "\n");
+ fprintf(fp, "# usemtl %s\n", material.c_str());
+ fprintf(fp, "# bs %.4f %.4f %.4f %.2f\n",
+ bs_center.x(), bs_center.y(), bs_center.z(), bs_radius);
+
+ // write groups
+ for ( i = start; i < end; ++i ) {
+ fprintf(fp, "ts");
+ for ( j = 0; j < (int)strips_v[i].size(); ++j ) {
+ fprintf(fp, " %d/%d", strips_v[i][j], strips_tc[i][j] );
+ }
+ fprintf(fp, "\n");
+ }
+
+ start = end;
+ end = start + 1;
+ }
+ }
+
+ // close the file
+ fclose(fp);
+
+ string command = "gzip --force --best " + file.str();
+ system(command.c_str());
+
+ return true;
}
projects / simgear.git / blobdiff