QVRVNCViewer::QVRVNCViewer(int& argc, char* argv[]) :
_wantExit(false),
_argc(argc),
_argv(argv),
_vncClient(NULL),
_vncWidth(0),
_vncHeight(0)
{
_qvrApp = this;
bool haveScreenDef = false;
bool haveValidScreenDef = false;
for (int i = 1; i < _argc; i++) {
if (strcmp(_argv[i], "--wall") == 0 && i < _argc - 1) {
haveScreenDef = true;
haveValidScreenDef = parseWall(_argv[i + 1], _screenWall);
_screenType = screenTypeWall;
removeArgs(_argc, _argv, i, 2);
} else if (strncmp(_argv[i], "--wall=", 7) == 0) {
haveScreenDef = true;
haveValidScreenDef = parseWall(_argv[i] + 7, _screenWall);
_screenType = screenTypeWall;
removeArgs(_argc, _argv, i, 1);
} else if (strcmp(_argv[i], "--cylinder") == 0 && i < _argc - 1) {
haveScreenDef = true;
haveValidScreenDef = parseCylinder(_argv[i + 1], _screenCylinder);
_screenType = screenTypeCylinder;
removeArgs(_argc, _argv, i, 2);
} else if (strncmp(_argv[i], "--cylinder=", 11) == 0) {
haveScreenDef = true;
haveValidScreenDef = parseCylinder(_argv[i] + 11, _screenCylinder);
_screenType = screenTypeCylinder;
removeArgs(_argc, _argv, i, 1);
}
}
if (!haveScreenDef)
std::cerr << "No screen geometry given; using default wall" << std::endl;
else if (!haveValidScreenDef)
std::cerr << "Screen geometry invalid; falling back to default wall" << std::endl;
if (!haveScreenDef || !haveValidScreenDef) {
_screenType = screenTypeWall;
_screenWall[0] = -1.0f;
_screenWall[1] = -1.0f + QVRObserverConfig::defaultEyeHeight;
_screenWall[2] = -3.0f;
_screenWall[3] = +1.0f;
_screenWall[4] = -1.0f + QVRObserverConfig::defaultEyeHeight;
_screenWall[5] = -3.0f;
_screenWall[6] = -1.0f;
_screenWall[7] = +1.0f + QVRObserverConfig::defaultEyeHeight;
_screenWall[8] = -3.0f;
}
}
GeometryPtr parseGeometry(TiXmlElement *g)
{
GeometryPtr geom;
if (!g) return geom;
TiXmlElement *shape = g->FirstChildElement();
if (!shape)
{
logError("Geometry tag contains no child element.");
return geom;
}
std::string type_name = shape->ValueStr();
if (type_name == "sphere")
{
Sphere *s = new Sphere();
resetPtr(geom,s);
if (parseSphere(*s, shape))
return geom;
}
else if (type_name == "box")
{
Box *b = new Box();
resetPtr(geom,b);
if (parseBox(*b, shape))
return geom;
}
else if (type_name == "cylinder")
{
Cylinder *c = new Cylinder();
resetPtr(geom,c);
if (parseCylinder(*c, shape))
return geom;
}
else if (type_name == "mesh")
{
Mesh *m = new Mesh();
resetPtr(geom,m);
if (parseMesh(*m, shape))
return geom;
}
else
{
logError("Unknown geometry type '%s'", type_name.c_str());
return geom;
}
return GeometryPtr();
}
my_shared_ptr<Geometry> parseGeometry(TiXmlElement *g)
{
my_shared_ptr<Geometry> geom;
if (!g) return geom;
TiXmlElement *shape = g->FirstChildElement();
if (!shape)
{
logError("Geometry tag contains no child element.");
return geom;
}
const std::string type_name = shape->ValueTStr().c_str();
if (type_name == "sphere")
{
Sphere *s = new Sphere();
geom.reset(s);
if (parseSphere(*s, shape))
return geom;
}
else if (type_name == "box")
{
Box *b = new Box();
geom.reset(b);
if (parseBox(*b, shape))
return geom;
}
else if (type_name == "cylinder")
{
Cylinder *c = new Cylinder();
geom.reset(c);
if (parseCylinder(*c, shape))
return geom;
}
else if (type_name == "mesh")
{
Mesh *m = new Mesh();
geom.reset(m);
if (parseMesh(*m, shape))
return geom;
}
else
{
logError("Unknown geometry type '%s'", type_name.c_str());
return geom;
}
return my_shared_ptr<Geometry>();
}
void SceneParser::parseObjects(void)
{
if(currentToken == Scanner::StreamDone)
return;
else{
while(errorFlag == false && currentToken != Scanner::StreamDone)
{
acceptToken(Scanner::Id);
string tokenText = scanner.tokenText();
if(tokenText == "sphere")
parseSphere();
else if(tokenText == "box")
parseBox();
else if(tokenText == "plane")
parsePlane();
else if(tokenText == "triangle")
parseTriangle();
else if(tokenText == "mesh")
parseMesh();
else if(tokenText == "cone")
parseCone();
else if(tokenText == "cylinder")
parseCylinder();
else if(tokenText == "pointlight")
parsePointLight();
else if(tokenText == "directionallight")
parseDirectionalLight();
else if(tokenText == "spotlight")
parseSpotlight();
else if(tokenText == "arealight")
parseAreaLight();
else{
error("undefined command: " + tokenText);
}
advance();
}
}
}
Scene* Parser::parseScene(){
///
xml_node scene = root.child("scene");
// optional name
Scene* _s;
if (scene.attribute("name") != NULL)
_s = new Scene(scene.attribute("name").value());
else
_s = Scene::New();
// optional settings
xml_node op;
op = scene.child("background");
float x, y, z;
if (op != NULL)
{
const char* back = op.text().as_string();
sscanf(back, "%f %f %f", &x, &y, &z);
_s->backgroundColor = Color(x, y, z);
scene.remove_child("background");
}
op = scene.child("ambient");
if (op != NULL)
{
const char* amb = op.text().as_string();
sscanf(amb, "%f %f %f", &x, &y, &z);
_s->ambientLight = Color(x, y, z);
scene.remove_child("ambient");
}
// processing the objets in the scene
xml_object_range<xml_node_iterator> objets = scene.children();
Light* light;
for (xml_node_iterator sceneElement = objets.begin(); sceneElement != objets.end(); ++sceneElement) {
if (strcmp(sceneElement->name(), "mesh") == 0)
_s->addActor(parseMesh(sceneElement));
if (strcmp(sceneElement->name(), "sphere") == 0)
_s->addActor(parseSphere(sceneElement));
if (strcmp(sceneElement->name(), "box") == 0)
_s->addActor(parseBox(sceneElement));
if (strcmp(sceneElement->name(), "cone") == 0)
_s->addActor(parseCone(sceneElement));
if (strcmp(sceneElement->name(), "cylinder") == 0)
_s->addActor(parseCylinder(sceneElement));
else if (strcmp(sceneElement->name(), "light") == 0){
light = parseLight(sceneElement);
_s->addLight(light);
}
}
return _s;
}