#include <stdio.h>
#include <time.h>
-#include <zlib.h>
-#include <list>
+#include <vector>
#include STL_STRING
#include <simgear/bucket/newbucket.hxx>
#include "lowlevel.hxx"
#include "sg_binobj.hxx"
-#ifdef _MSC_VER
-# include <Win32/mkdir.hpp>
+
+SG_USING_STD( string );
+SG_USING_STD( vector );
+
+#if !defined (SG_HAVE_NATIVE_SGI_COMPILERS)
+SG_USING_STD( cout );
+SG_USING_STD( endl );
#endif
-FG_USING_STD( cout );
-FG_USING_STD( endl );
enum {
SG_BOUNDING_SPHERE = 0,
} tgPropertyTypes;
+class sgSimpleBuffer {
+
+private:
+
+ char *ptr;
+ unsigned int size;
+
+public:
+
+ inline sgSimpleBuffer( unsigned int s )
+ {
+ size = 1;
+ while ( size < s ) {
+ size *= 2;
+ }
+ cout << "Creating a new buffer of size = " << size << endl;
+ 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;
+ }
+ cout << "resizing buffer to size = " << size << endl;
+ 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 ) {
}
-// 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 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;
- 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 ) {
- 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() );
- }
- 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();
- 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 );
- }
- }
-
- // 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();
- 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 );
- }
- }
-
- // 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);
-
- command = "gzip --force --best " + file;
- system(command.c_str());
-
- return true;
-}
-
-
// read a binary file and populate the provided structures.
-bool 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 )
-{
+bool SGBinObject::read_bin( const string& file ) {
Point3D p;
int i, j, k;
char material[256];
+ unsigned int nbytes;
+ static sgSimpleBuffer buf( 32768 ); // 32 Kb
// zero out structures
+ gbs_center = Point3D( 0 );
+ gbs_radius = 0.0;
+
wgs84_nodes.clear();
normals.clear();
texcoords.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;
+ // cout << "ERROR: opening " << file << " or " << filegz
+ // << "for reading!" << endl;
+
return false;
}
}
sgClearReadError();
// read headers
- int header, version;
- sgReadInt( fp, &header );
+ 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;
}
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;
+ // cout << "File created on " << time_str << endl;
// read number of top level objects
short nobjects;
sgReadShort( fp, &nobjects );
- cout << "Total objects to read = " << nobjects << endl;
+ // cout << "Total objects to read = " << nobjects << endl;
// read in objects
for ( i = 0; i < nobjects; ++i ) {
sgReadShort( fp, &nproperties );
sgReadShort( fp, &nelements );
- 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;
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (unsigned long long *)&(dptr[0]) );
+ sgEndianSwap( (unsigned long long *)&(dptr[1]) );
+ sgEndianSwap( (unsigned long long *)&(dptr[2]) );
+ }
gbs_center = Point3D( dptr[0], dptr[1], dptr[2] );
- cout << "Center = " << gbs_center << endl;
+ // 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( (unsigned int *)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;
for ( k = 0; k < count; ++k ) {
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (unsigned int *)&(fptr[0]) );
+ sgEndianSwap( (unsigned int *)&(fptr[1]) );
+ sgEndianSwap( (unsigned int *)&(fptr[2]) );
+ }
p = Point3D( fptr[0], fptr[1], fptr[2] );
- cout << "node = " << p << endl;
+ // cout << "node = " << p << endl;
wgs84_nodes.push_back( p );
fptr += 3;
}
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
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 / 3;
for ( k = 0; k < count; ++k ) {
- p = Point3D( ptr[0] / 128.0 - 1.0,
- ptr[1] / 128.0 - 1.0,
- ptr[2] / 128.0 - 1.0 );
- cout << "normal = " << p << endl;
+ sgdVec3 normal;
+ sgdSetVec3( normal,
+ (ptr[0]) / 127.5 - 1.0,
+ (ptr[1]) / 127.5 - 1.0,
+ (ptr[2]) / 127.5 - 1.0 );
+ sgdNormalizeVec3( normal );
+
+ p = Point3D( normal[0], normal[1], normal[2] );
+ // cout << "normal = " << p << endl;
normals.push_back( p );
ptr += 3;
}
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
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) * 2);
float *fptr = (float *)ptr;
for ( k = 0; k < count; ++k ) {
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (unsigned int *)&(fptr[0]) );
+ sgEndianSwap( (unsigned int *)&(fptr[1]) );
+ }
p = Point3D( fptr[0], fptr[1], 0 );
- cout << "texcoord = " << p << endl;
+ // cout << "texcoord = " << p << endl;
texcoords.push_back( p );
fptr += 2;
}
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 ) {
strncpy( material, ptr, nbytes );
material[nbytes] = '\0';
- cout << "material type = " << material << endl;
+ // cout << "material type = " << material << endl;
}
}
// read triangle face 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);
short *sptr = (short *)ptr;
int_list vs, tcs;
vs.clear(); tcs.clear();
for ( k = 0; k < count; ++k ) {
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (unsigned short *)&(sptr[0]) );
+ sgEndianSwap( (unsigned short *)&(sptr[1]) );
+ }
vs.push_back( sptr[0] );
tcs.push_back( sptr[1] );
- cout << sptr[0] << "/" << sptr[1] << " ";
+ // cout << sptr[0] << "/" << sptr[1] << " ";
sptr += 2;
}
- cout << endl;
+ // cout << endl;
tris_v.push_back( vs );
tris_tc.push_back( tcs );
tri_materials.push_back( material );
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 ) {
strncpy( material, ptr, nbytes );
material[nbytes] = '\0';
- cout << "material type = " << material << endl;
+ // cout << "material type = " << material << endl;
}
}
// 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;
+ 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);
short *sptr = (short *)ptr;
int_list vs, tcs;
vs.clear(); tcs.clear();
for ( k = 0; k < count; ++k ) {
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (unsigned short *)&(sptr[0]) );
+ sgEndianSwap( (unsigned short *)&(sptr[1]) );
+ }
vs.push_back( sptr[0] );
tcs.push_back( sptr[1] );
- cout << sptr[0] << "/" << sptr[1] << " ";
+ // cout << sptr[0] << "/" << sptr[1] << " ";
sptr += 2;
}
- cout << endl;
+ // cout << endl;
strips_v.push_back( vs );
strips_tc.push_back( tcs );
strip_materials.push_back( material );
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 ) {
strncpy( material, ptr, nbytes );
material[nbytes] = '\0';
- cout << "material type = " << material << endl;
+ // cout << "material type = " << material << endl;
}
}
// 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;
+ 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);
short *sptr = (short *)ptr;
int_list vs, tcs;
vs.clear(); tcs.clear();
for ( k = 0; k < count; ++k ) {
+ if ( sgIsBigEndian() ) {
+ sgEndianSwap( (unsigned short *)&(sptr[0]) );
+ sgEndianSwap( (unsigned short *)&(sptr[1]) );
+ }
vs.push_back( sptr[0] );
tcs.push_back( sptr[1] );
- cout << sptr[0] << "/" << sptr[1] << " ";
+ // cout << sptr[0] << "/" << sptr[1] << " ";
sptr += 2;
}
- cout << endl;
+ // cout << endl;
fans_v.push_back( vs );
fans_tc.push_back( tcs );
fan_materials.push_back( material );
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 );
}
}
// 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.
-bool 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;
string dir = base + "/" + b.gen_base_path();
string command = "mkdir -p " + dir;
#ifdef _MSC_VER
- fg_mkdir( dir.c_str() );
+ system( (string("mkdir ") + dir).c_str() );
#else
system(command.c_str());
#endif
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 );
sgWriteShort( fp, 0 ); // nproperties
sgWriteShort( 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 );
sgWriteChar( fp, (char)SG_VERTEX_LIST ); // type
sgWriteShort( fp, 0 ); // nproperties
sgWriteShort( fp, 1 ); // nelements
- sgWriteInt( fp, wgs84_nodes.size() * sizeof(float) * 3 ); // nbytes
+ 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() );
sgWriteChar( fp, (char)SG_NORMAL_LIST ); // type
sgWriteShort( fp, 0 ); // nproperties
sgWriteShort( fp, 1 ); // nelements
- sgWriteInt( fp, normals.size() * 3 ); // nbytes
+ 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() + 1.0) * 128);
- normal[1] = (char)((p.y() + 1.0) * 128);
- normal[2] = (char)((p.z() + 1.0) * 128);
+ 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 );
}
sgWriteChar( fp, (char)SG_TEXCOORD_LIST ); // type
sgWriteShort( fp, 0 ); // nproperties
sgWriteShort( fp, 1 ); // nelements
- sgWriteInt( fp, texcoords.size() * sizeof(float) * 2 ); // nbytes
+ 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() );
sgWriteShort( 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
+ sgWriteUInt( fp, (end - start) * 3 * 2 * sizeof(short) ); // nbytes
// write group
for ( i = start; i < end; ++i ) {
sgWriteShort( fp, 1 ); // nproperties
sgWriteShort( 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() );
// write strips
for ( i = start; i < end; ++i ) {
// nbytes
- sgWriteInt( fp, strips_v[i].size() * 2 * sizeof(short) );
+ sgWriteUInt( fp, strips_v[i].size() * 2 * sizeof(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] );
sgWriteShort( 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() );
// write fans
for ( i = start; i < end; ++i ) {
// nbytes
- sgWriteInt( fp, fans_v[i].size() * 2 * sizeof(short) );
+ sgWriteUInt( fp, fans_v[i].size() * 2 * sizeof(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] );
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 )
+{
+ Point3D p;
+ int i, j;
+
+ string dir = base + "/" + b.gen_base_path();
+ string command = "mkdir -p " + dir;
+#ifdef _MSC_VER
+ system( (string("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;
+ 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 ) {
+ 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() );
+ }
+ 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();
+ 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 );
+ }
+ }
+
+ // 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();
+ 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 );
+ }
+ }
+
+ // 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);
+
+ command = "gzip --force --best " + file;
+ system(command.c_str());
+
+ return true;
+}
projects / simgear.git / blobdiff