#include <simgear_config.h>
#endif
-#include <osg/observer_ptr>
#include <osg/ref_ptr>
-#include <osg/Group>
-#include <osg/NodeCallback>
-#include <osg/Switch>
-#include <osg/MatrixTransform>
-#include <osgDB/Archive>
-#include <osgDB/FileNameUtils>
-#include <osgDB/FileUtils>
#include <osgDB/ReadFile>
-#include <osgDB/WriteFile>
-#include <osgDB/Registry>
#include <osgDB/SharedStateManager>
-#include <osgUtil/Optimizer>
-#include <simgear/scene/util/SGStateAttributeVisitor.hxx>
-#include <simgear/scene/util/SGTextureStateAttributeVisitor.hxx>
+#include <simgear/scene/util/SGSceneFeatures.hxx>
#include <simgear/structure/exception.hxx>
#include <simgear/props/props.hxx>
#include <simgear/props/props_io.hxx>
#include <simgear/props/condition.hxx>
-#include "animation.hxx"
#include "model.hxx"
-SG_USING_STD(vector);
-SG_USING_STD(set);
-
-// Little helper class that holds an extra reference to a
-// loaded 3d model.
-// Since we clone all structural nodes from our 3d models,
-// the database pager will only see one single reference to
-// top node of the model and expire it relatively fast.
-// We attach that extra reference to every model cloned from
-// a base model in the pager. When that cloned model is deleted
-// this extra reference is deleted too. So if there are no
-// cloned models left the model will expire.
-class SGDatabaseReference : public osg::Observer {
-public:
- SGDatabaseReference(osg::Referenced* referenced) :
- mReferenced(referenced)
- { }
- virtual void objectDeleted(void*)
- {
- mReferenced = 0;
- }
-private:
- osg::ref_ptr<osg::Referenced> mReferenced;
-};
-
-// Visitor for
-class SGTextureUpdateVisitor : public SGTextureStateAttributeVisitor {
-public:
- SGTextureUpdateVisitor(const osgDB::FilePathList& pathList) :
- mPathList(pathList)
- { }
- osg::Texture2D* textureReplace(int unit,
- osg::StateSet::RefAttributePair& refAttr)
- {
- osg::Texture2D* texture;
- texture = dynamic_cast<osg::Texture2D*>(refAttr.first.get());
- if (!texture)
- return 0;
-
- osg::ref_ptr<osg::Image> image = texture->getImage(0);
- if (!image)
- return 0;
-
- // The currently loaded file name
- std::string fullFilePath = image->getFileName();
- // The short name
- std::string fileName = osgDB::getSimpleFileName(fullFilePath);
- // The name that should be found with the current database path
- std::string fullLiveryFile = osgDB::findFileInPath(fileName, mPathList);
- // If they are identical then there is nothing to do
- if (fullLiveryFile == fullFilePath)
- return 0;
-
- image = osgDB::readImageFile(fullLiveryFile);
- if (!image)
- return 0;
-
- osg::CopyOp copyOp(osg::CopyOp::DEEP_COPY_ALL &
- ~osg::CopyOp::DEEP_COPY_IMAGES);
- texture = static_cast<osg::Texture2D*>(copyOp(texture));
- if (!texture)
- return 0;
- texture->setImage(image.get());
- return texture;
- }
- virtual void apply(osg::StateSet* stateSet)
- {
- if (!stateSet)
- return;
-
- // get a copy that we can safely modify the statesets values.
- osg::StateSet::TextureAttributeList attrList;
- attrList = stateSet->getTextureAttributeList();
- for (unsigned unit = 0; unit < attrList.size(); ++unit) {
- osg::StateSet::AttributeList::iterator i;
- i = attrList[unit].begin();
- while (i != attrList[unit].end()) {
- osg::Texture2D* texture = textureReplace(unit, i->second);
- if (texture) {
- stateSet->removeTextureAttribute(unit, i->second.first.get());
- stateSet->setTextureAttribute(unit, texture, i->second.second);
- stateSet->setTextureMode(unit, GL_TEXTURE_2D,
- osg::StateAttribute::ON);
- }
- ++i;
- }
- }
- }
-
-private:
- osgDB::FilePathList mPathList;
-};
-
-class SGTexCompressionVisitor : public SGTextureStateAttributeVisitor {
-public:
- SGTexCompressionVisitor(osg::Texture::InternalFormatMode formatMode) :
- mFormatMode(formatMode)
- { }
-
- virtual void apply(int, osg::StateSet::RefAttributePair& refAttr)
- {
- osg::Texture2D* texture;
- texture = dynamic_cast<osg::Texture2D*>(refAttr.first.get());
- if (!texture)
- return;
-
- osg::Image* image = texture->getImage(0);
- if (!image)
- return;
-
- int s = image->s();
- int t = image->t();
- if (s <= t && 32 <= s) {
- texture->setInternalFormatMode(mFormatMode);
- } else if (t < s && 32 <= t) {
- texture->setInternalFormatMode(mFormatMode);
- }
- }
-
-private:
- osg::Texture::InternalFormatMode mFormatMode;
-};
-
-class SGAcMaterialCrippleVisitor : public SGStateAttributeVisitor {
-public:
- virtual void apply(osg::StateSet::RefAttributePair& refAttr)
- {
- osg::Material* material;
- material = dynamic_cast<osg::Material*>(refAttr.first.get());
- if (!material)
- return;
- material->setColorMode(osg::Material::AMBIENT_AND_DIFFUSE);
- }
-};
-
-class SGReadFileCallback :
- public osgDB::Registry::ReadFileCallback {
-public:
- virtual osgDB::ReaderWriter::ReadResult
- readImage(const std::string& fileName,
- const osgDB::ReaderWriter::Options* opt)
- {
- std::string absFileName = osgDB::findDataFile(fileName);
- if (!osgDB::fileExists(absFileName)) {
- SG_LOG(SG_IO, SG_ALERT, "Cannot find image file \""
- << fileName << "\"");
- return osgDB::ReaderWriter::ReadResult::FILE_NOT_FOUND;
- }
-
- osgDB::Registry* registry = osgDB::Registry::instance();
- osgDB::ReaderWriter::ReadResult res;
- res = registry->readImageImplementation(absFileName, opt);
- if (res.loadedFromCache())
- SG_LOG(SG_IO, SG_INFO, "Returning cached image \""
- << res.getImage()->getFileName() << "\"");
- else
- SG_LOG(SG_IO, SG_INFO, "Reading image \""
- << res.getImage()->getFileName() << "\"");
-
- return res;
- }
-
- virtual osgDB::ReaderWriter::ReadResult
- readNode(const std::string& fileName,
- const osgDB::ReaderWriter::Options* opt)
- {
- std::string absFileName = osgDB::findDataFile(fileName);
- if (!osgDB::fileExists(absFileName)) {
- SG_LOG(SG_IO, SG_ALERT, "Cannot find model file \""
- << fileName << "\"");
- return osgDB::ReaderWriter::ReadResult::FILE_NOT_FOUND;
- }
-
- osgDB::Registry* registry = osgDB::Registry::instance();
- osgDB::ReaderWriter::ReadResult res;
- res = registry->readNodeImplementation(absFileName, opt);
- if (!res.validNode())
- return res;
-
- if (res.loadedFromCache()) {
- SG_LOG(SG_IO, SG_INFO, "Returning cached model \""
- << absFileName << "\"");
- } else {
- SG_LOG(SG_IO, SG_INFO, "Reading model \""
- << absFileName << "\"");
-
- bool needTristrip = true;
- if (osgDB::getLowerCaseFileExtension(absFileName) == "ac") {
- // we get optimal geometry from the loader.
- needTristrip = false;
- osg::Matrix m(1, 0, 0, 0,
- 0, 0, 1, 0,
- 0, -1, 0, 0,
- 0, 0, 0, 1);
-
- osg::ref_ptr<osg::Group> root = new osg::Group;
- osg::MatrixTransform* transform = new osg::MatrixTransform;
- root->addChild(transform);
-
- transform->setDataVariance(osg::Object::STATIC);
- transform->setMatrix(m);
- transform->addChild(res.getNode());
-
- res = osgDB::ReaderWriter::ReadResult(0);
-
- osgUtil::Optimizer optimizer;
- unsigned opts = osgUtil::Optimizer::FLATTEN_STATIC_TRANSFORMS;
- optimizer.optimize(root.get(), opts);
-
- // strip away unneeded groups
- if (root->getNumChildren() == 1 && root->getName().empty()) {
- res = osgDB::ReaderWriter::ReadResult(root->getChild(0));
- } else
- res = osgDB::ReaderWriter::ReadResult(root.get());
-
- // Ok, this step is questionable.
- // It is there to have the same visual appearance of ac objects for the
- // first cut. Osg's ac3d loader will correctly set materials from the
- // ac file. But the old plib loader used GL_AMBIENT_AND_DIFFUSE for the
- // materials that in effect igored the ambient part specified in the
- // file. We emulate that for the first cut here by changing all
- // ac models here. But in the long term we should use the
- // unchanged model and fix the input files instead ...
- SGAcMaterialCrippleVisitor matCriple;
- res.getNode()->accept(matCriple);
- }
-
- osgUtil::Optimizer optimizer;
- unsigned opts = 0;
- // Don't use this one. It will break animation names ...
- // opts |= osgUtil::Optimizer::REMOVE_REDUNDANT_NODES;
-
- // opts |= osgUtil::Optimizer::REMOVE_LOADED_PROXY_NODES;
- // opts |= osgUtil::Optimizer::COMBINE_ADJACENT_LODS;
- // opts |= osgUtil::Optimizer::SHARE_DUPLICATE_STATE;
- opts |= osgUtil::Optimizer::MERGE_GEOMETRY;
- // opts |= osgUtil::Optimizer::CHECK_GEOMETRY;
- // opts |= osgUtil::Optimizer::SPATIALIZE_GROUPS;
- // opts |= osgUtil::Optimizer::COPY_SHARED_NODES;
- opts |= osgUtil::Optimizer::FLATTEN_STATIC_TRANSFORMS;
- if (needTristrip)
- opts |= osgUtil::Optimizer::TRISTRIP_GEOMETRY;
- // opts |= osgUtil::Optimizer::TESSELATE_GEOMETRY;
- opts |= osgUtil::Optimizer::OPTIMIZE_TEXTURE_SETTINGS;
- optimizer.optimize(res.getNode(), opts);
-
- // OSGFIXME
- registry->getSharedStateManager()->share(res.getNode());
-
- // OSGFIXME: guard that with a flag
- // OSGFIXME: in the long term it is unclear if we have an OpenGL
- // context here...
- osg::Texture::Extensions* e = osg::Texture::getExtensions(0, true);
- if (e->isTextureCompressionARBSupported()) {
- SGTexCompressionVisitor texComp(osg::Texture::USE_ARB_COMPRESSION);
- res.getNode()->accept(texComp);
- } else if (e->isTextureCompressionS3TCSupported()) {
- SGTexCompressionVisitor texComp(osg::Texture::USE_S3TC_DXT5_COMPRESSION);
- res.getNode()->accept(texComp);
- }
- }
-
- // Add an extra reference to the model stored in the database.
- // That it to avoid expiring the object from the cache even if it is still
- // in use. Note that the object cache will think that a model is unused
- // if the reference count is 1. If we clone all structural nodes here
- // we need that extra reference to the original object
- SGDatabaseReference* databaseReference;
- databaseReference = new SGDatabaseReference(res.getNode());
- osg::CopyOp::CopyFlags flags = osg::CopyOp::DEEP_COPY_ALL;
- flags &= ~osg::CopyOp::DEEP_COPY_TEXTURES;
- flags &= ~osg::CopyOp::DEEP_COPY_IMAGES;
- flags &= ~osg::CopyOp::DEEP_COPY_ARRAYS;
- flags &= ~osg::CopyOp::DEEP_COPY_PRIMITIVES;
- // This will safe display lists ...
- flags &= ~osg::CopyOp::DEEP_COPY_DRAWABLES;
- flags &= ~osg::CopyOp::DEEP_COPY_SHAPES;
- res = osgDB::ReaderWriter::ReadResult(osg::CopyOp(flags)(res.getNode()));
- res.getNode()->addObserver(databaseReference);
-
- SGTextureUpdateVisitor liveryUpdate(osgDB::getDataFilePathList());
- res.getNode()->accept(liveryUpdate);
-
- // OSGFIXME: don't forget that mutex here
- registry->getOrCreateSharedStateManager()->share(res.getNode(), 0);
-
- return res;
- }
-};
-
-class SGReadCallbackInstaller {
-public:
- SGReadCallbackInstaller()
- {
- osg::Referenced::setThreadSafeReferenceCounting(true);
-
- osgDB::Registry* registry = osgDB::Registry::instance();
- osgDB::ReaderWriter::Options* options = new osgDB::ReaderWriter::Options;
- options->setObjectCacheHint(osgDB::ReaderWriter::Options::CACHE_ALL);
- registry->setOptions(options);
- registry->getOrCreateSharedStateManager()->setShareMode(osgDB::SharedStateManager::SHARE_TEXTURES);
- registry->setReadFileCallback(new SGReadFileCallback);
- }
-};
-
-static SGReadCallbackInstaller readCallbackInstaller;
+using std::vector;
osg::Texture2D*
-SGLoadTexture2D(const std::string& path, bool wrapu, bool wrapv, int)
+SGLoadTexture2D(bool staticTexture, const std::string& path,
+ const osgDB::ReaderWriter::Options* options,
+ bool wrapu, bool wrapv, int)
{
- osg::Image* image = osgDB::readImageFile(path);
+ osg::Image* image;
+ if (options)
+ image = osgDB::readImageFile(path, options);
+ else
+ image = osgDB::readImageFile(path);
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
texture->setImage(image);
+ if (staticTexture)
+ texture->setDataVariance(osg::Object::STATIC);
if (wrapu)
texture->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
else
int s = image->s();
int t = image->t();
- // OSGFIXME: guard with a flag
- if (osg::Texture::getExtensions(0, true)->isTextureCompressionARBSupported()) {
- if (s <= t && 32 <= s) {
- texture->setInternalFormatMode(osg::Texture::USE_ARB_COMPRESSION);
- } else if (t < s && 32 <= t) {
- texture->setInternalFormatMode(osg::Texture::USE_ARB_COMPRESSION);
- }
- } else if (osg::Texture::getExtensions(0, true)->isTextureCompressionS3TCSupported()) {
- if (s <= t && 32 <= s) {
- texture->setInternalFormatMode(osg::Texture::USE_S3TC_DXT5_COMPRESSION);
- } else if (t < s && 32 <= t) {
- texture->setInternalFormatMode(osg::Texture::USE_S3TC_DXT5_COMPRESSION);
- }
+ if (s <= t && 32 <= s) {
+ SGSceneFeatures::instance()->setTextureCompression(texture.get());
+ } else if (t < s && 32 <= t) {
+ SGSceneFeatures::instance()->setTextureCompression(texture.get());
}
}
- // Make sure the texture is shared if we already have the same texture
- // somewhere ...
- {
- osg::ref_ptr<osg::Node> tmpNode = new osg::Node;
- osg::StateSet* stateSet = tmpNode->getOrCreateStateSet();
- stateSet->setTextureAttribute(0, texture.get());
-
- // OSGFIXME: don't forget that mutex here
- osgDB::Registry* registry = osgDB::Registry::instance();
- registry->getOrCreateSharedStateManager()->share(tmpNode.get(), 0);
-
- // should be the same, but be paranoid ...
- stateSet = tmpNode->getStateSet();
- osg::StateAttribute* stateAttr;
- stateAttr = stateSet->getTextureAttribute(0, osg::StateAttribute::TEXTURE);
- osg::Texture2D* texture2D = dynamic_cast<osg::Texture2D*>(stateAttr);
- if (texture2D)
- texture = texture2D;
- }
-
return texture.release();
}
-class SGSwitchUpdateCallback : public osg::NodeCallback {
-public:
- SGSwitchUpdateCallback(SGCondition* condition) :
- mCondition(condition) {}
- virtual void operator()(osg::Node* node, osg::NodeVisitor* nv)
- {
- assert(dynamic_cast<osg::Switch*>(node));
- osg::Switch* s = static_cast<osg::Switch*>(node);
-
- if (mCondition && mCondition->test()) {
- s->setAllChildrenOn();
- // note, callback is responsible for scenegraph traversal so
- // should always include call traverse(node,nv) to ensure
- // that the rest of cullbacks and the scene graph are traversed.
- traverse(node, nv);
- } else
- s->setAllChildrenOff();
- }
-
-private:
- SGSharedPtr<SGCondition> mCondition;
-};
-
-\f
-////////////////////////////////////////////////////////////////////////
-// Global functions.
-////////////////////////////////////////////////////////////////////////
-
-osg::Node *
-sgLoad3DModel( const string &fg_root, const string &path,
- SGPropertyNode *prop_root,
- double sim_time_sec, osg::Node *(*load_panel)(SGPropertyNode *),
- SGModelData *data,
- const SGPath& externalTexturePath )
-{
- osg::Node* model = 0;
- SGPropertyNode props;
-
- // Load the 3D aircraft object itself
- SGPath modelpath = path, texturepath = path;
- if ( !ulIsAbsolutePathName( path.c_str() ) ) {
- SGPath tmp = fg_root;
- tmp.append(modelpath.str());
- modelpath = texturepath = tmp;
- }
-
- // Check for an XML wrapper
- if (modelpath.str().substr(modelpath.str().size() - 4, 4) == ".xml") {
- readProperties(modelpath.str(), &props);
- if (props.hasValue("/path")) {
- modelpath = modelpath.dir();
- modelpath.append(props.getStringValue("/path"));
- if (props.hasValue("/texture-path")) {
- texturepath = texturepath.dir();
- texturepath.append(props.getStringValue("/texture-path"));
- }
- } else {
- if (model == 0)
- model = new osg::Switch;
- }
- }
-
- osgDB::FilePathList pathList = osgDB::getDataFilePathList();
- osgDB::Registry::instance()->initFilePathLists();
-
- // Assume that textures are in
- // the same location as the XML file.
- if (model == 0) {
- if (texturepath.extension() != "")
- texturepath = texturepath.dir();
-
- osgDB::Registry::instance()->getDataFilePathList().push_front(texturepath.str());
-
- model = osgDB::readNodeFile(modelpath.str());
- if (model == 0)
- throw sg_io_exception("Failed to load 3D model",
- sg_location(modelpath.str()));
- }
-
- osgDB::Registry::instance()->getDataFilePathList().push_front(externalTexturePath.str());
-
- // Set up the alignment node
- osg::MatrixTransform* alignmainmodel = new osg::MatrixTransform;
- alignmainmodel->addChild(model);
- osg::Matrix res_matrix;
- res_matrix.makeRotate(
- props.getFloatValue("/offsets/pitch-deg", 0.0)*SG_DEGREES_TO_RADIANS,
- osg::Vec3(0, 1, 0),
- props.getFloatValue("/offsets/roll-deg", 0.0)*SG_DEGREES_TO_RADIANS,
- osg::Vec3(1, 0, 0),
- props.getFloatValue("/offsets/heading-deg", 0.0)*SG_DEGREES_TO_RADIANS,
- osg::Vec3(0, 0, 1));
-
- osg::Matrix tmat;
- tmat.makeTranslate(props.getFloatValue("/offsets/x-m", 0.0),
- props.getFloatValue("/offsets/y-m", 0.0),
- props.getFloatValue("/offsets/z-m", 0.0));
- alignmainmodel->setMatrix(res_matrix*tmat);
-
- // Load sub-models
- vector<SGPropertyNode_ptr> model_nodes = props.getChildren("model");
- for (unsigned i = 0; i < model_nodes.size(); i++) {
- SGPropertyNode_ptr node = model_nodes[i];
- osg::MatrixTransform* align = new osg::MatrixTransform;
- res_matrix.makeIdentity();
- res_matrix.makeRotate(
- node->getDoubleValue("offsets/pitch-deg", 0.0)*SG_DEGREES_TO_RADIANS,
- osg::Vec3(0, 1, 0),
- node->getDoubleValue("offsets/roll-deg", 0.0)*SG_DEGREES_TO_RADIANS,
- osg::Vec3(1, 0, 0),
- node->getDoubleValue("offsets/heading-deg", 0.0)*SG_DEGREES_TO_RADIANS,
- osg::Vec3(0, 0, 1));
-
- tmat.makeIdentity();
- tmat.makeTranslate(node->getDoubleValue("offsets/x-m", 0),
- node->getDoubleValue("offsets/y-m", 0),
- node->getDoubleValue("offsets/z-m", 0));
- align->setMatrix(res_matrix*tmat);
-
- osg::Node* kid;
- const char* submodel = node->getStringValue("path");
- try {
- kid = sgLoad3DModel( fg_root, submodel, prop_root, sim_time_sec, load_panel );
-
- } catch (const sg_throwable &t) {
- SG_LOG(SG_INPUT, SG_ALERT, "Failed to load submodel: " << t.getFormattedMessage());
- throw;
- }
- align->addChild(kid);
-
- align->setName(node->getStringValue("name", ""));
-
- SGPropertyNode *cond = node->getNode("condition", false);
- if (cond) {
- osg::Switch* sw = new osg::Switch;
- sw->setUpdateCallback(new SGSwitchUpdateCallback(sgReadCondition(prop_root, cond)));
- alignmainmodel->addChild(sw);
- sw->addChild(align);
- sw->setName("submodel condition switch");
- } else {
- alignmainmodel->addChild(align);
- }
- }
-
- if ( load_panel ) {
- // Load panels
- vector<SGPropertyNode_ptr> panel_nodes = props.getChildren("panel");
- for (unsigned i = 0; i < panel_nodes.size(); i++) {
- SG_LOG(SG_INPUT, SG_DEBUG, "Loading a panel");
- osg::Node * panel = load_panel(panel_nodes[i]);
- if (panel_nodes[i]->hasValue("name"))
- panel->setName((char *)panel_nodes[i]->getStringValue("name"));
- alignmainmodel->addChild(panel);
- }
- }
-
- if (data) {
- alignmainmodel->setUserData(data);
- data->modelLoaded(path, &props, alignmainmodel);
- }
-
- std::vector<SGPropertyNode_ptr> animation_nodes;
- animation_nodes = props.getChildren("animation");
- for (unsigned i = 0; i < animation_nodes.size(); ++i)
- /// OSGFIXME: duh, why not only model?????
- SGAnimation::animate(alignmainmodel, animation_nodes[i], prop_root);
-
- // restore old path list
- osgDB::setDataFilePathList(pathList);
-
- if (props.hasChild("debug-outfile")) {
- std::string outputfile = props.getStringValue("debug-outfile",
- "debug-model.osg");
- osgDB::writeNodeFile(*alignmainmodel, outputfile);
- }
-
- return alignmainmodel;
-}
-
// end of model.cxx
projects / simgear.git / blobdiff