# include <math.h>
#endif
-#ifdef HAVE_WINDOWS_H
-# include <windows.h>
-#endif
-
#include <stdio.h>
#include <string.h>
-#include <GL/glut.h>
-#include <XGL/xgl.h>
// #if defined ( __sun__ )
// extern "C" void *memmove(void *, const void *, size_t);
#include <Include/fg_constants.h>
#include <Main/options.hxx>
#include <Math/mat3.h>
+#include <Math/fg_geodesy.hxx>
#include <Math/fg_random.h>
#include <Math/point3d.hxx>
#include <Math/polar3d.hxx>
}
-// Load a .obj file and build the GL fragment list
+// Generate a generic ocean tile on the fly
+ssgBranch *fgGenTile( const string& path, FGTileEntry *t) {
+ fgFRAGMENT fragment;
+ fragment.init();
+ fragment.tile_ptr = t;
+
+ ssgSimpleState *state = NULL;
+
+ ssgBranch *tile = new ssgBranch () ;
+ tile -> setName ( (char *)path.c_str() ) ;
+
+ // find Ocean material in the properties list
+ if ( ! material_mgr.find( "Ocean", fragment.material_ptr )) {
+ FG_LOG( FG_TERRAIN, FG_ALERT,
+ "Ack! unknown usemtl name = " << "Ocean"
+ << " in " << path );
+ }
+
+ // set the texture width and height values for this
+ // material
+ FGMaterial m = fragment.material_ptr->get_m();
+ double tex_width = m.get_xsize();
+ double tex_height = m.get_ysize();
+
+ // set ssgState
+ state = fragment.material_ptr->get_state();
+
+ // Calculate center point
+ FGBucket b = t->tile_bucket;
+ double clon = b.get_center_lon();
+ double clat = b.get_center_lat();
+ double height = b.get_height();
+ double width = b.get_width();
+
+ Point3D center = fgGeodToCart(Point3D(clon*DEG_TO_RAD,clat*DEG_TO_RAD,0.0));
+ t->center = center;
+ fragment.center = center;
+ // cout << "center = " << center << endl;;
+
+ // Caculate corner vertices
+ Point3D geod[4];
+ geod[0] = Point3D( clon - width/2.0, clat - height/2.0, 0.0 );
+ geod[1] = Point3D( clon + width/2.0, clat - height/2.0, 0.0 );
+ geod[2] = Point3D( clon + width/2.0, clat + height/2.0, 0.0 );
+ geod[3] = Point3D( clon - width/2.0, clat + height/2.0, 0.0 );
+
+ Point3D rad[4];
+ for ( int i = 0; i < 4; ++i ) {
+ rad[i] = Point3D( geod[i].x() * DEG_TO_RAD, geod[i].y() * DEG_TO_RAD,
+ geod[i].z() );
+ }
+
+ Point3D cart[4], rel[4];
+ for ( int i = 0; i < 4; ++i ) {
+ cart[i] = fgGeodToCart(rad[i]);
+ rel[i] = cart[i] - center;
+ t->nodes.push_back( rel[i] );
+ // cout << "corner " << i << " = " << cart[i] << endl;
+ }
+
+ t->ncount = 4;
+
+ // Calculate bounding radius
+ t->bounding_radius = center.distance3D( cart[0] );
+ fragment.bounding_radius = t->bounding_radius;
+ // cout << "bounding radius = " << t->bounding_radius << endl;
+
+ // Calculate normals
+ Point3D normals[4];
+ for ( int i = 0; i < 4; ++i ) {
+ normals[i] = cart[i];
+ double length = normals[i].distance3D( Point3D(0.0) );
+ normals[i] /= length;
+ // cout << "normal = " << normals[i] << endl;
+ }
+
+ // Calculate texture coordinates
+ Point3D texs[4];
+ for ( int i = 0; i < 4; ++i ) {
+ texs[i] = calc_tex_coords( rel[i], center );
+ // cout << "texture coordinate = " << texs[i] << endl;
+ }
+
+ // Build flight gear structure
+ fragment.add_face(1, 2, 3);
+ fragment.add_face(1, 3, 4);
+ t->fragment_list.push_back(fragment);
+
+ // Build ssg structure
+ t->vtlist = new sgVec3 [ 4 ];
+ t->vnlist = new sgVec3 [ 4 ];
+ t->tclist = new sgVec2 [ 4 ];
+
+ for ( int i = 0; i < 4; ++i ) {
+ sgSetVec3( t->vtlist[i],
+ rel[i].x(), rel[i].y(), rel[i].z() );
+ sgSetVec3( t->vnlist[i],
+ normals[i].x(), normals[i].y(), normals[i].z() );
+ sgSetVec2( t->tclist[i], texs[i].x(), texs[i].y() );
+ }
+
+ unsigned short *vindex = new unsigned short [ 4 ];
+ unsigned short *tindex = new unsigned short [ 4 ];
+ for ( int i = 0; i < 4; ++i ) {
+ vindex[i] = i;
+ tindex[i] = i;
+ }
+
+ ssgLeaf *leaf =
+ new ssgVTable ( GL_TRIANGLE_FAN,
+ 4, vindex, t->vtlist,
+ 4, vindex, t->vnlist,
+ 4, tindex, t->tclist,
+ 0, NULL, NULL ) ;
+ leaf->setState( state );
+
+ tile->addKid( leaf );
+
+ return tile;
+}
+
+
+// Load a .obj file and build the fragment list
ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
fgFRAGMENT fragment;
Point3D pp;
- double approx_normal[3], normal[3] /*, scale = 0.0 */;
+ double approx_normal[3] /*, normal[3], scale = 0.0 */;
// double x, y, z, xmax, xmin, ymax, ymin, zmax, zmin;
// GLfloat sgenparams[] = { 1.0, 0.0, 0.0, 0.0 };
- GLint display_list = 0;
+ // GLint display_list = 0;
int shading;
bool in_fragment = false, in_faces = false;
int vncount, vtcount;
int i;
ssgSimpleState *state = NULL;
- // printf("loading %s\n", path.c_str() );
+ ssgBranch *tile = new ssgBranch () ;
+ tile -> setName ( (char *)path.c_str() ) ;
// Attempt to open "path.gz" or "path"
fg_gzifstream in( path );
if ( ! in.is_open() ) {
FG_LOG( FG_TERRAIN, FG_ALERT, "Cannot open file: " << path );
- return 0;
+ FG_LOG( FG_TERRAIN, FG_ALERT, "default to ocean tile: " << path );
+
+ return fgGenTile( path, t );
}
shading = current_options.get_shading();
StopWatch stopwatch;
stopwatch.start();
- ssgBranch *tile = new ssgBranch () ;
- tile -> setName ( path.c_str() ) ;
-
// ignore initial comments and blank lines. (priming the pump)
// in >> skipcomment;
- string line;
+ // string line;
+ string token;
+ char c;
+
+#ifdef __MWERKS__
+ while ( in.get(c) && c != '\0' ) {
+ in.putback(c);
+#else
while ( ! in.eof() ) {
- string token;
- char c;
+#endif
#if defined( MACOS )
in >> ::skipws;
// if first usemtl with shared_done = false, then set
// shared_done true and build the ssg shared lists
if ( ! shared_done ) {
+ // sanity check
+ if ( (int)nodes.size() != vncount ) {
+ FG_LOG( FG_TERRAIN, FG_ALERT,
+ "Tile has mismatched nodes and normals: "
+ << path );
+ // exit(-1);
+ }
shared_done = true;
t->vtlist = new sgVec3 [ nodes.size() ];
}
// series of individual triangles
- if ( in_faces ) {
- xglEnd();
- }
+ // if ( in_faces ) {
+ // xglEnd();
+ // }
// this also signals the start of a new fragment
if ( in_fragment ) {
// close out the previous structure and start the next
- xglEndList();
+ // xglEndList();
// printf("xglEnd(); xglEndList();\n");
// update fragment
- fragment.display_list = display_list;
+ // fragment.display_list = display_list;
// push this fragment onto the tile's object list
t->fragment_list.push_back(fragment);
// printf("start of fragment (usemtl)\n");
- display_list = xglGenLists(1);
- xglNewList(display_list, GL_COMPILE);
+ // display_list = xglGenLists(1);
+ // xglNewList(display_list, GL_COMPILE);
// printf("xglGenLists(); xglNewList();\n");
in_faces = false;
// fgPrintf( FG_TERRAIN, FG_DEBUG, "(t) = ");
- xglBegin(GL_TRIANGLE_STRIP);
+ // xglBegin(GL_TRIANGLE_STRIP);
// printf("xglBegin(tristrip) %d %d %d\n", n1, n2, n3);
odd = 1;
// Shading model is "GL_SMOOTH" so use precalculated
// (averaged) normals
// MAT3_SCALE_VEC(normal, normals[n1], scale);
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n1], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n1].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n1].get_n());
// MAT3_SCALE_VEC(normal, normals[n2], scale);
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n2], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n2].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n2].get_n());
// MAT3_SCALE_VEC(normal, normals[n3], scale);
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n3], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n3].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n3].get_n());
} else {
// Shading model is "GL_FLAT" so calculate per face
// normals on the fly.
nodes[n3], approx_normal);
}
// MAT3_SCALE_VEC(normal, approx_normal, scale);
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n1], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n1].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n1].get_n());
pp = calc_tex_coords(nodes[n2], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n2].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n2].get_n());
pp = calc_tex_coords(nodes[n3], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n3].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n3].get_n());
}
// printf("some normals, texcoords, and vertices\n");
approx_normal);
// MAT3_SCALE_VEC(normal, approx_normal, scale);
}
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n4], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n4].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n4].get_n());
odd = 1 - odd;
last1 = n3;
fan_vertices.clear();
fan_tex_coords.clear();
- xglBegin(GL_TRIANGLE_FAN);
+ // xglBegin(GL_TRIANGLE_FAN);
in >> n1;
fan_vertices.push_back( n1 );
- xglNormal3dv(normals[n1]);
+ // xglNormal3dv(normals[n1]);
if ( in.get( c ) && c == '/' ) {
in >> tex;
fan_tex_coords.push_back( tex );
in.putback( c );
pp = calc_tex_coords(nodes[n1], center);
}
- xglTexCoord2f(pp.x(), pp.y());
- xglVertex3dv(nodes[n1].get_n());
+ // xglTexCoord2f(pp.x(), pp.y());
+ // xglVertex3dv(nodes[n1].get_n());
in >> n2;
fan_vertices.push_back( n2 );
- xglNormal3dv(normals[n2]);
+ // xglNormal3dv(normals[n2]);
if ( in.get( c ) && c == '/' ) {
in >> tex;
fan_tex_coords.push_back( tex );
in.putback( c );
pp = calc_tex_coords(nodes[n2], center);
}
- xglTexCoord2f(pp.x(), pp.y());
- xglVertex3dv(nodes[n2].get_n());
+ // xglTexCoord2f(pp.x(), pp.y());
+ // xglVertex3dv(nodes[n2].get_n());
// read all subsequent numbers until next thing isn't a number
while ( true ) {
// cout << " triangle = "
// << n1 << "," << n2 << "," << n3
// << endl;
- xglNormal3dv(normals[n3]);
+ // xglNormal3dv(normals[n3]);
if ( in.get( c ) && c == '/' ) {
in >> tex;
fan_tex_coords.push_back( tex );
in.putback( c );
pp = calc_tex_coords(nodes[n3], center);
}
- xglTexCoord2f(pp.x(), pp.y());
- xglVertex3dv(nodes[n3].get_n());
+ // xglTexCoord2f(pp.x(), pp.y());
+ // xglVertex3dv(nodes[n3].get_n());
fragment.add_face(n1, n2, n3);
n2 = n3;
}
- xglEnd();
+ // xglEnd();
// build the ssg entity
unsigned short *vindex =
// unoptimized face
if ( !in_faces ) {
- xglBegin(GL_TRIANGLES);
+ // xglBegin(GL_TRIANGLES);
// printf("xglBegin(triangles)\n");
in_faces = true;
}
fragment.add_face(n1, n2, n3);
// xglNormal3d(normals[n1][0], normals[n1][1], normals[n1][2]);
- xglNormal3dv(normals[n1]);
+ // xglNormal3dv(normals[n1]);
pp = calc_tex_coords(nodes[n1], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n1].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n1].get_n());
- xglNormal3dv(normals[n2]);
+ // xglNormal3dv(normals[n2]);
pp = calc_tex_coords(nodes[n2], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n2].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n2].get_n());
- xglNormal3dv(normals[n3]);
+ // xglNormal3dv(normals[n3]);
pp = calc_tex_coords(nodes[n3], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n3].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n3].get_n());
// printf("some normals, texcoords, and vertices (tris)\n");
} else if ( token == "q" ) {
// continue a triangle strip
}
// MAT3_SCALE_VEC(normal, approx_normal, scale);
}
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n1], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n1].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n1].get_n());
// printf("a normal, texcoord, and vertex (4th)\n");
odd = 1 - odd;
}
// MAT3_SCALE_VEC(normal, approx_normal, scale);
}
- xglNormal3dv(normal);
+ // xglNormal3dv(normal);
pp = calc_tex_coords(nodes[n2], center);
- xglTexCoord2f(pp.lon(), pp.lat());
- xglVertex3dv(nodes[n2].get_n());
+ // xglTexCoord2f(pp.lon(), pp.lat());
+ // xglVertex3dv(nodes[n2].get_n());
// printf("a normal, texcoord, and vertex (4th)\n");
odd = 1 -odd;
if ( in_fragment ) {
// close out the previous structure and start the next
- xglEnd();
- xglEndList();
+ // xglEnd();
+ // xglEndList();
// printf("xglEnd(); xglEndList();\n");
// update fragment
- fragment.display_list = display_list;
+ // fragment.display_list = display_list;
// push this fragment onto the tile's object list
t->fragment_list.push_back(fragment);
projects / flightgear.git / blobdiff