+++ /dev/null
-// loader.cxx - implement SSG model and texture loaders.
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <simgear/compiler.h>
-#include <simgear/props/props.hxx>
-
-#include "loader.hxx"
-#include "model.hxx"
-
-
-\f
-////////////////////////////////////////////////////////////////////////
-// Implementation of FGSSGLoader.
-////////////////////////////////////////////////////////////////////////
-
-FGSSGLoader::FGSSGLoader ()
-{
- // no op
-}
-
-FGSSGLoader::~FGSSGLoader ()
-{
- std::map<string, ssgBase *>::iterator it = _table.begin();
- while (it != _table.end()) {
- it->second->deRef();
- _table.erase(it);
- }
-}
-
-void
-FGSSGLoader::flush ()
-{
- std::map<string, ssgBase *>::iterator it = _table.begin();
- while (it != _table.end()) {
- ssgBase * item = it->second;
- // If there is only one reference, it's
- // ours; no one else is using the item.
- if (item->getRef() == 1) {
- item->deRef();
- _table.erase(it);
- }
- it++;
- }
-}
-
-
-\f
-////////////////////////////////////////////////////////////////////////
-// Implementation of FGModelLoader.
-////////////////////////////////////////////////////////////////////////
-
-FGModelLoader::FGModelLoader ()
-{
-}
-
-FGModelLoader::~FGModelLoader ()
-{
-}
-
-ssgEntity *
-FGModelLoader::load_model( const string &fg_root,
- const string &path,
- SGPropertyNode *prop_root,
- double sim_time_sec )
-{
- // FIXME: normalize path to
- // avoid duplicates.
- std::map<string, ssgBase *>::iterator it = _table.find(path);
- if (it == _table.end()) {
- _table[path] = fgLoad3DModel( fg_root, path, prop_root, sim_time_sec );
- it = _table.find(path);
- it->second->ref(); // add one reference to keep it around
- }
- return (ssgEntity *)it->second;
-}
-
-
-// end of loader.cxx
+++ /dev/null
-// model.cxx - manage a 3D aircraft model.
-// Written by David Megginson, started 2002.
-//
-// This file is in the Public Domain, and comes with no warranty.
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include <simgear/compiler.h>
-
-#include <string.h> // for strcmp()
-
-#include <vector>
-
-#include <plib/sg.h>
-#include <plib/ssg.h>
-#include <plib/ul.h>
-
-#include <simgear/misc/exception.hxx>
-#include <simgear/misc/sg_path.hxx>
-#include <simgear/props/props.hxx>
-#include <simgear/props/props_io.hxx>
-#include <simgear/scene/model/animation.hxx>
-
-#include "model.hxx"
-
-SG_USING_STD(vector);
-
-
-\f
-////////////////////////////////////////////////////////////////////////
-// Static utility functions.
-////////////////////////////////////////////////////////////////////////
-
-/**
- * Callback to update an animation.
- */
-static int
-animation_callback (ssgEntity * entity, int mask)
-{
- ((Animation *)entity->getUserData())->update();
- return true;
-}
-
-
-/**
- * Locate a named SSG node in a branch.
- */
-static ssgEntity *
-find_named_node (ssgEntity * node, const char * name)
-{
- char * node_name = node->getName();
- if (node_name != 0 && !strcmp(name, node_name))
- return node;
- else if (node->isAKindOf(ssgTypeBranch())) {
- int nKids = node->getNumKids();
- for (int i = 0; i < nKids; i++) {
- ssgEntity * result =
- find_named_node(((ssgBranch*)node)->getKid(i), name);
- if (result != 0)
- return result;
- }
- }
- return 0;
-}
-
-/**
- * Splice a branch in between all child nodes and their parents.
- */
-static void
-splice_branch (ssgBranch * branch, ssgEntity * child)
-{
- int nParents = child->getNumParents();
- branch->addKid(child);
- for (int i = 0; i < nParents; i++) {
- ssgBranch * parent = child->getParent(i);
- parent->replaceKid(child, branch);
- }
-}
-
-/**
- * Make an offset matrix from rotations and position offset.
- */
-void
-fgMakeOffsetsMatrix( sgMat4 * result, double h_rot, double p_rot, double r_rot,
- double x_off, double y_off, double z_off )
-{
- sgMat4 rot_matrix;
- sgMat4 pos_matrix;
- sgMakeRotMat4(rot_matrix, h_rot, p_rot, r_rot);
- sgMakeTransMat4(pos_matrix, x_off, y_off, z_off);
- sgMultMat4(*result, pos_matrix, rot_matrix);
-}
-
-
-void
-fgMakeAnimation( ssgBranch * model,
- const char * name,
- vector<SGPropertyNode_ptr> &name_nodes,
- SGPropertyNode *prop_root,
- SGPropertyNode_ptr node,
- double sim_time_sec )
-{
- Animation * animation = 0;
- const char * type = node->getStringValue("type", "none");
- if (!strcmp("none", type)) {
- animation = new NullAnimation(node);
- } else if (!strcmp("range", type)) {
- animation = new RangeAnimation(node);
- } else if (!strcmp("billboard", type)) {
- animation = new BillboardAnimation(node);
- } else if (!strcmp("select", type)) {
- animation = new SelectAnimation(prop_root, node);
- } else if (!strcmp("spin", type)) {
- animation = new SpinAnimation(prop_root, node, sim_time_sec );
- } else if (!strcmp("timed", type)) {
- animation = new TimedAnimation(node);
- } else if (!strcmp("rotate", type)) {
- animation = new RotateAnimation(prop_root, node);
- } else if (!strcmp("translate", type)) {
- animation = new TranslateAnimation(prop_root, node);
- } else {
- animation = new NullAnimation(node);
- SG_LOG(SG_INPUT, SG_WARN, "Unknown animation type " << type);
- }
-
- if (name != 0)
- animation->setName((char *)name);
-
- ssgEntity * object;
- if (name_nodes.size() > 0) {
- object = find_named_node(model, name_nodes[0]->getStringValue());
- if (object == 0) {
- SG_LOG(SG_INPUT, SG_WARN, "Object " << name_nodes[0]->getStringValue()
- << " not found");
- delete animation;
- animation = 0;
- }
- } else {
- object = model;
- }
-
- ssgBranch * branch = animation->getBranch();
- splice_branch(branch, object);
-
- for (unsigned int i = 1; i < name_nodes.size(); i++) {
- const char * name = name_nodes[i]->getStringValue();
- object = find_named_node(model, name);
- if (object == 0) {
- SG_LOG(SG_INPUT, SG_WARN, "Object " << name << " not found");
- delete animation;
- animation = 0;
- }
- ssgBranch * oldParent = object->getParent(0);
- branch->addKid(object);
- oldParent->removeKid(object);
- }
-
- animation->init();
- branch->setUserData(animation);
- branch->setTravCallback(SSG_CALLBACK_PRETRAV, animation_callback);
-}
-
-
-
-\f
-////////////////////////////////////////////////////////////////////////
-// Global functions.
-////////////////////////////////////////////////////////////////////////
-
-ssgBranch *
-fgLoad3DModel( const string &fg_root, const string &path,
- SGPropertyNode *prop_root,
- double sim_time_sec )
-{
- ssgBranch * model = 0;
- SGPropertyNode props;
-
- // Load the 3D aircraft object itself
- SGPath xmlpath;
- SGPath modelpath = path;
- if ( ulIsAbsolutePathName( path.c_str() ) ) {
- xmlpath = modelpath;
- }
- else {
- xmlpath = fg_root;
- xmlpath.append(modelpath.str());
- }
-
- // Check for an XML wrapper
- if (xmlpath.str().substr(xmlpath.str().size() - 4, 4) == ".xml") {
- readProperties(xmlpath.str(), &props);
- if (props.hasValue("/path")) {
- modelpath = modelpath.dir();
- modelpath.append(props.getStringValue("/path"));
- } else {
- if (model == 0)
- model = new ssgBranch;
- }
- }
-
- // Assume that textures are in
- // the same location as the XML file.
- if (model == 0) {
- ssgTexturePath((char *)xmlpath.dir().c_str());
- model = (ssgBranch *)ssgLoad((char *)modelpath.c_str());
- if (model == 0)
- throw sg_exception("Failed to load 3D model");
- }
-
- // Set up the alignment node
- ssgTransform * alignmainmodel = new ssgTransform;
- alignmainmodel->addKid(model);
- sgMat4 res_matrix;
- fgMakeOffsetsMatrix(&res_matrix,
- props.getFloatValue("/offsets/heading-deg", 0.0),
- props.getFloatValue("/offsets/roll-deg", 0.0),
- props.getFloatValue("/offsets/pitch-deg", 0.0),
- props.getFloatValue("/offsets/x-m", 0.0),
- props.getFloatValue("/offsets/y-m", 0.0),
- props.getFloatValue("/offsets/z-m", 0.0));
- alignmainmodel->setTransform(res_matrix);
-
- unsigned int i;
-
- // Load animations
- vector<SGPropertyNode_ptr> animation_nodes = props.getChildren("animation");
- for (i = 0; i < animation_nodes.size(); i++) {
- const char * name = animation_nodes[i]->getStringValue("name", 0);
- vector<SGPropertyNode_ptr> name_nodes =
- animation_nodes[i]->getChildren("object-name");
- fgMakeAnimation( model, name, name_nodes, prop_root, animation_nodes[i],
- sim_time_sec);
- }
-
- // Load sub-models
- vector<SGPropertyNode_ptr> model_nodes = props.getChildren("model");
- for (i = 0; i < model_nodes.size(); i++) {
- SGPropertyNode_ptr node = model_nodes[i];
- ssgTransform * align = new ssgTransform;
- sgMat4 res_matrix;
- fgMakeOffsetsMatrix(&res_matrix,
- node->getFloatValue("offsets/heading-deg", 0.0),
- node->getFloatValue("offsets/roll-deg", 0.0),
- node->getFloatValue("offsets/pitch-deg", 0.0),
- node->getFloatValue("offsets/x-m", 0.0),
- node->getFloatValue("offsets/y-m", 0.0),
- node->getFloatValue("offsets/z-m", 0.0));
- align->setTransform(res_matrix);
-
- ssgBranch * kid = fgLoad3DModel( fg_root, node->getStringValue("path"),
- prop_root, sim_time_sec );
- align->addKid(kid);
- model->addKid(align);
- }
-
- return alignmainmodel;
-}
-
-
-// end of model.cxx
+++ /dev/null
-// model.hxx - manage a 3D aircraft model.
-// Written by David Megginson, started 2002.
-//
-// This file is in the Public Domain, and comes with no warranty.
-
-#ifndef __MODEL_HXX
-#define __MODEL_HXX 1
-
-#ifndef __cplusplus
-# error This library requires C++
-#endif
-
-#include <vector>
-
-SG_USING_STD(vector);
-
-#include <plib/sg.h>
-#include <plib/ssg.h>
-
-#include <simgear/props/props.hxx>
-
-
-// Has anyone done anything *really* stupid, like making min and max macros?
-#ifdef min
-#undef min
-#endif
-#ifdef max
-#undef max
-#endif
-
-
-/**
- * Load a 3D model with or without XML wrapper. Note, this version
- * Does not know about or load the panel/cockpit information. Use the
- * "model_panel.hxx" version if you want to load an aircraft
- * (i.e. ownship) with a panel.
- *
- * If the path ends in ".xml", then it will be used as a property-
- * list wrapper to add animations to the model.
- *
- * Subsystems should not normally invoke this function directly;
- * instead, they should use the FGModelLoader declared in loader.hxx.
- */
-ssgBranch * fgLoad3DModel( const string& fg_root, const string &path,
- SGPropertyNode *prop_root, double sim_time_sec );
-
-
-/**
- * Make an offset matrix from rotations and position offset.
- */
-void
-fgMakeOffsetsMatrix( sgMat4 * result, double h_rot, double p_rot, double r_rot,
- double x_off, double y_off, double z_off );
-
-/**
- * Make the animation
- */
-void
-fgMakeAnimation( ssgBranch * model,
- const char * name,
- vector<SGPropertyNode_ptr> &name_nodes,
- SGPropertyNode *prop_root,
- SGPropertyNode_ptr node,
- double sim_time_sec );
-
-
-#endif // __MODEL_HXX
projects / flightgear.git / commitdiff