X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=simgear%2Fio%2Fsg_binobj.cxx;h=3c3213082ae7e033945b3325426439597af9c6c9;hb=aefe9bc11682f39b3936b9f01a0d37e9d6428078;hp=0a7799702932aee536a35cc17d8ee45774501d36;hpb=70f495b4e156dfa076b61f0afadbd288afbbba54;p=simgear.git diff --git a/simgear/io/sg_binobj.cxx b/simgear/io/sg_binobj.cxx index 0a779970..3c321308 100644 --- a/simgear/io/sg_binobj.cxx +++ b/simgear/io/sg_binobj.cxx @@ -2,7 +2,7 @@ // // 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 @@ -16,57 +16,109 @@ // // 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 +# include #endif #include +#include #include #include -#include -#include -#include STL_STRING +#include +#include +#include #include +#include #include "lowlevel.hxx" #include "sg_binobj.hxx" -#ifdef _MSC_VER -# include -#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() ) { @@ -107,281 +159,242 @@ double sgCalcBoundingRadius( Point3D 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. -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 @@ -389,31 +402,37 @@ void sgReadBinObj( const string& file, 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 @@ -421,224 +440,148 @@ void sgReadBinObj( const string& file, 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 @@ -647,21 +590,19 @@ void sgReadBinObj( const string& file, 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 ); } } @@ -669,45 +610,40 @@ void sgReadBinObj( const string& file, // 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 = " @@ -715,26 +651,43 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, 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]; @@ -748,7 +701,7 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, nobjects += ntris; // strips - short nstrips = 0; + unsigned short nstrips = 0; start = 0; end = 1; while ( start < (int)strip_materials.size() ) { material = strip_materials[start]; @@ -762,7 +715,7 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, nobjects += nstrips; // fans - short nfans = 0; + unsigned short nfans = 0; start = 0; end = 1; while ( start < (int)fan_materials.size() ) { material = fan_materials[start]; @@ -776,14 +729,14 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, 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 ); @@ -791,38 +744,105 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, // 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 @@ -834,7 +854,8 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, // 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++; @@ -843,20 +864,42 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, // 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] ); + } } } @@ -883,20 +926,41 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, // 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] ); + } } } @@ -923,20 +987,41 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, // 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] ); + } } } @@ -947,4 +1032,191 @@ void sgWriteBinObj( const string& base, const string& name, const SGBucket& b, // 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; }