void renderpanel(void) {
int h = Y_MARGIN;
SDL_FillRect(panel, NULL, g_panel_bg);
h = renderinfo(h);
h = renderhold(h);
h = renderqueue(h);
}
// render head-up display
void renderhud()
{
double elev,sea;
double flattening;
minicoord eye_llh;
minicoord hit;
minicoord hit_llh;
double dist;
char str[MAXSTR];
minilayer *nst=NULL;
minitile *mt=NULL;
nst=viewer->getearth()->getnearest(cam->get_eye());
if (nst!=NULL) mt=nst->getterrain()->getminitile();
minitext::configure_zfight(1.0f);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f,1.0f,0.0f,1.0f,-1.0f,1.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glBlendFunc(GL_SRC_ALPHA,GL_ONE_MINUS_SRC_ALPHA);
glEnable(GL_BLEND);
if (sw_hud)
{
glTranslatef(0.0f,0.675f,0.0f);
glColor4f(1.0f,1.0f,1.0f,0.5f);
glBegin(GL_QUADS);
glVertex2f(0.0f,0.0f);
glVertex2f(1.0f,0.0f);
glVertex2f(1.0f,0.3f);
glVertex2f(0.0f,0.3f);
glEnd();
glTranslatef(0.033f,0.0f,0.0f);
elev=viewer->getearth()->getheight(cam->get_eye());
if (elev==-MAXFLOAT) elev=0.0f;
flattening=viewer->getearth()->getterrain()->getflattening()*tparams->exaggeration;
if (flattening!=0.0) elev/=flattening;
sea=tparams->sealevel;
if (sea==-MAXFLOAT) sea=0.0f;
if (nst!=NULL) eye_llh=nst->map_g2t(cam->get_eye());
if (eye_llh.type!=minicoord::MINICOORD_LINEAR) eye_llh.convert2(minicoord::MINICOORD_LLH);
snprintf(str,MAXSTR,
"Position: \n\n"
" x= %11.1f\n y= %11.1f\n z= %11.1fm (%.1fm)\n\n dir= %.1f\n yon= %.1f\n\n"
"Settings:\n\n"
" farp= %.1fm (f/F)\n\n res= %.1f*%.1f (t/T)\n range= %.1f*%.1fm (r/R)\n\n sea= %.1f (u/U)\n\n gravity= %.1f (g)\n",
eye_llh.vec.x,eye_llh.vec.y,eye_llh.vec.z,elev,cam->get_angle(),cam->get_pitch(), // position/elevation and direction
params->farp,tparams->res*tparams->relres1,tparams->relres2,tparams->range*tparams->relrange1*params->farp,tparams->relrange2,sea,gravity); // adjustable parameters
minitext::drawstring(0.3f,240.0f,1.0f,0.25f,1.0f,str);
glTranslatef(0.3f,0.0f,0.0f);
snprintf(str,MAXSTR,
"Load: \n\n"
" fps= %.1fHz (%.1f%%)\n\n mem= %.1fMB\n tex= %.1fMB\n\n"
"Streaming:\n\n"
" pending= %d\n\n cache= %.1fMB\n\n"
"Geometry:\n\n"
" fans= %d\n vertices= %d\n",
1.0/(avg_delta+avg_idle),100*(1.0-avg_idle*params->fps), // actual frame rate and load
viewer->getearth()->getterrain()->getmem(),viewer->getearth()->getterrain()->gettexmem(), // memory consumed by tilesets
viewer->getearth()->getterrain()->getpending(), // number of pending tiles
viewer->getearth()->getterrain()->getcachemem(), // memory foot print of data cache
viewer->getearth()->getterrain()->getbuffer()->getfancnt(), // rendered triangles fans
viewer->getearth()->getterrain()->getbuffer()->getvtxcnt()); // rendered vertices
if (mt!=NULL)
snprintf(str+strlen(str),MAXSTR-strlen(str),
" vis area= [%d-%d]x[%d-%d]\n\n",
mt->getvisibleleft(),mt->getvisibleright(),mt->getvisiblebottom(),mt->getvisibletop()); // visible area of nearest tileset
minitext::drawstring(0.3f,240.0f,1.0f,0.25f,1.0f,str);
glTranslatef(0.3f,0.0f,0.0f);
snprintf(str,MAXSTR,
"Controls: \n\n"
" left= a\n right= d\n accelerate= w\n decelerate= s\n\n"
" stop= spc\n jump= j\n look down= <\n look up= >\n\n"
" hud/hide= h/H\n crosshair= c\n waypoints= p\n wireframe= l\n\n"
" load/save= o/O\n quit= Q esc\n");
minitext::drawstring(0.3f,240.0f,1.0f,0.25f,1.0f,str);
rendercompass();
renderinfo();
}
else
if (sw_hide==0)
{
glTranslatef(0.033f,0.95f,0.0f);
minitext::drawstring(0.3f,240.0f,1.0f,0.25f,1.0f,"[Press h for HUD]",1.0f,0.25f);
glLoadIdentity();
rendercompass();
}
if (sw_cross!=0 || cam->get_pitch()<-89.9)
{
glLoadIdentity();
glTranslatef(0.5f,0.5f,0.0f);
glScalef((float)winheight/winwidth,1.0f,1.0f);
glColor3f(0.0f,0.0f,0.0f);
glPushMatrix();
glScalef(0.025f,0.025f,1.0f);
glBegin(GL_LINES);
glVertex2f(-1.0,-1.0f);
glVertex2f(1.0,1.0f);
glVertex2f(-1.0,1.0f);
glVertex2f(1.0,-1.0f);
glEnd();
glPopMatrix();
hit=cam->get_hit();
if (hit!=cam->get_eye())
{
nst=viewer->getearth()->getnearest(hit);
if (nst!=NULL) hit=nst->map_g2t(hit);
if (hit.type!=minicoord::MINICOORD_LINEAR) hit.convert2(minicoord::MINICOORD_ECEF);
hit_llh=hit;
if (hit_llh.type!=minicoord::MINICOORD_LINEAR) hit_llh.convert2(minicoord::MINICOORD_LLH);
dist=(hit-cam->get_eye()).vec.getlength();
if (dist<1000.0)
snprintf(str,MAXSTR,"dist=%3.3fm elev=%3.3fm\nlat=%3.6f lon=%3.6f",
dist,hit_llh.vec.z,hit_llh.vec.y/3600.0,hit_llh.vec.x/3600.0);
else
snprintf(str,MAXSTR,"dist=%3.3fkm elev=%3.3fm\nlat=%3.6f lon=%3.6f",
dist/1000.0,hit_llh.vec.z,hit_llh.vec.y/3600.0,hit_llh.vec.x/3600.0);
glTranslatef(0.05f,-0.01f,0.0f);
minitext::drawstring(0.5f,240.0f,1.0f,0.25f,1.0f,str);
reportpos(hit_llh.vec.y,hit_llh.vec.x,hit_llh.vec.z);
}
}
glDisable(GL_BLEND);
}