]> git.mxchange.org Git - simgear.git/blobdiff - simgear/scene/model/ModelRegistry.cxx
Improved tile cache priority scheme.
[simgear.git] / simgear / scene / model / ModelRegistry.cxx
index 6355acd9b3319838dc8d9ed0977b67e9acb3e4ba..a4fb94c9fc2b6561ffca032da2e56fef961d3bd5 100644 (file)
 // You should have received a copy of the GNU General Public License
 // along with this program; if not, write to the Free Software
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include "ModelRegistry.hxx"
 
 #include <algorithm>
@@ -24,7 +29,6 @@
 
 #include <OpenThreads/ScopedLock>
 
-#include <osg/observer_ptr>
 #include <osg/ref_ptr>
 #include <osg/Group>
 #include <osg/NodeCallback>
 #include <simgear/props/props_io.hxx>
 #include <simgear/props/condition.hxx>
 
+#include "BoundingVolumeBuildVisitor.hxx"
+#include "model.hxx"
+#include "SGReaderWriterXMLOptions.hxx"
+
 using namespace std;
 using namespace osg;
 using namespace osgUtil;
 using namespace osgDB;
 using namespace simgear;
 
-using OpenThreads::ReentrantMutex;
-using OpenThreads::ScopedLock;
-
 // Little helper class that holds an extra reference to a
 // loaded 3d model.
 // Since we clone all structural nodes from our 3d models,
@@ -122,103 +127,6 @@ protected:
     }
 };
 
-// Change the StateSets of a model to hold different textures based on
-// a livery path.
-
-class TextureUpdateVisitor : public NodeAndDrawableVisitor {
-public:
-    TextureUpdateVisitor(const FilePathList& pathList) :
-        NodeAndDrawableVisitor(NodeVisitor::TRAVERSE_ALL_CHILDREN),
-        _pathList(pathList)
-    {
-    }
-    
-    virtual void apply(Node& node)
-    {
-        StateSet* stateSet = cloneStateSet(node.getStateSet());
-        if (stateSet)
-            node.setStateSet(stateSet);
-        traverse(node);
-    }
-
-    virtual void apply(Drawable& drawable)
-    {
-        StateSet* stateSet = cloneStateSet(drawable.getStateSet());
-        if (stateSet)
-            drawable.setStateSet(stateSet);
-    }
-    // Copied from Mathias' earlier SGTextureUpdateVisitor
-protected:
-    Texture2D* textureReplace(int unit, const StateAttribute* attr)
-    {
-        const Texture2D* texture = dynamic_cast<const Texture2D*>(attr);
-
-        if (!texture)
-            return 0;
-    
-        const Image* image = texture->getImage();
-        const string* fullFilePath = 0;
-        if (image) {
-            // The currently loaded file name
-            fullFilePath = &image->getFileName();
-
-        } else {
-            fullFilePath = &texture->getName();
-        }
-        // The short name
-        string fileName = getSimpleFileName(*fullFilePath);
-        if (fileName.empty())
-            return 0;
-        // The name that should be found with the current database path
-        string fullLiveryFile = findFileInPath(fileName, _pathList);
-        // If it is empty or they are identical then there is nothing to do
-        if (fullLiveryFile.empty() || fullLiveryFile == *fullFilePath)
-            return 0;
-        Image* newImage = readImageFile(fullLiveryFile);
-        if (!newImage)
-            return 0;
-        CopyOp copyOp(CopyOp::DEEP_COPY_ALL & ~CopyOp::DEEP_COPY_IMAGES);
-        Texture2D* newTexture = static_cast<Texture2D*>(copyOp(texture));
-        if (!newTexture) {
-            return 0;
-        } else {
-            newTexture->setImage(newImage);
-            return newTexture;
-        }
-    }
-    
-    StateSet* cloneStateSet(const StateSet* stateSet)
-    {
-        typedef pair<int, Texture2D*> Tex2D;
-        vector<Tex2D> newTextures;
-        StateSet* result = 0;
-
-        if (!stateSet)
-            return 0;
-        int numUnits = stateSet->getTextureAttributeList().size();
-        if (numUnits > 0) {
-            for (int i = 0; i < numUnits; ++i) {
-                const StateAttribute* attr
-                    = stateSet->getTextureAttribute(i, StateAttribute::TEXTURE);
-                Texture2D* newTexture = textureReplace(i, attr);
-                if (newTexture)
-                    newTextures.push_back(Tex2D(i, newTexture));
-            }
-            if (!newTextures.empty()) {
-                result = static_cast<StateSet*>(stateSet->clone(CopyOp()));
-                for (vector<Tex2D>::iterator i = newTextures.begin();
-                     i != newTextures.end();
-                     ++i) {
-                    result->setTextureAttribute(i->first, i->second);
-                }
-            }
-        }
-        return result;
-    }
-private:
-    FilePathList _pathList;
-};
-
 
 class SGTexCompressionVisitor : public SGTextureStateAttributeVisitor {
 public:
@@ -229,9 +137,13 @@ public:
     if (!texture)
       return;
 
-    // Hmm, true??
-    texture->setDataVariance(osg::Object::STATIC);
+    // Do not touch dynamically generated textures.
+    if (texture->getReadPBuffer())
+      return;
+    if (texture->getDataVariance() == osg::Object::DYNAMIC)
+      return;
 
+    // If no image attached, we assume this one is dynamically generated
     Image* image = texture->getImage(0);
     if (!image)
       return;
@@ -256,6 +168,16 @@ public:
     if (!texture)
       return;
 
+    // Cannot be static if this is a render to texture thing
+    if (texture->getReadPBuffer())
+      return;
+    if (texture->getDataVariance() == osg::Object::DYNAMIC)
+      return;
+    // If no image attached, we assume this one is dynamically generated
+    Image* image = texture->getImage(0);
+    if (!image)
+      return;
+    
     texture->setDataVariance(Object::STATIC);
   }
 
@@ -263,20 +185,8 @@ public:
   {
     if (!stateSet)
       return;
-    SGTextureStateAttributeVisitor::apply(stateSet);
     stateSet->setDataVariance(Object::STATIC);
-  }
-};
-
-class SGAcMaterialCrippleVisitor : public SGStateAttributeVisitor {
-public:
-  virtual void apply(StateSet::RefAttributePair& refAttr)
-  {
-    Material* material;
-    material = dynamic_cast<Material*>(refAttr.first.get());
-    if (!material)
-      return;
-    material->setColorMode(Material::AMBIENT_AND_DIFFUSE);
+    SGTextureStateAttributeVisitor::apply(stateSet);
   }
 };
 
@@ -294,14 +204,12 @@ ReaderWriter::ReadResult
 ModelRegistry::readImage(const string& fileName,
                          const ReaderWriter::Options* opt)
 {
-    ScopedLock<ReentrantMutex> lock(readerMutex);
     CallbackMap::iterator iter
         = imageCallbackMap.find(getFileExtension(fileName));
-    // XXX Workaround for OSG plugin bug
     {
         if (iter != imageCallbackMap.end() && iter->second.valid())
             return iter->second->readImage(fileName, opt);
-        string absFileName = findDataFile(fileName, opt);
+        string absFileName = SGModelLib::findDataFile(fileName, opt);
         if (!fileExists(absFileName)) {
             SG_LOG(SG_IO, SG_ALERT, "Cannot find image file \""
                    << fileName << "\"");
@@ -317,10 +225,10 @@ ModelRegistry::readImage(const string& fileName,
         }
         
         if (res.loadedFromCache())
-            SG_LOG(SG_IO, SG_INFO, "Returning cached image \""
+            SG_LOG(SG_IO, SG_BULK, "Returning cached image \""
                    << res.getImage()->getFileName() << "\"");
         else
-            SG_LOG(SG_IO, SG_INFO, "Reading image \""
+            SG_LOG(SG_IO, SG_BULK, "Reading image \""
                    << res.getImage()->getFileName() << "\"");
 
         return res;
@@ -335,10 +243,10 @@ osg::Node* DefaultCachePolicy::find(const string& fileName,
     osg::Node* cached
         = dynamic_cast<Node*>(registry->getFromObjectCache(fileName));
     if (cached)
-        SG_LOG(SG_IO, SG_INFO, "Got cached model \""
+        SG_LOG(SG_IO, SG_BULK, "Got cached model \""
                << fileName << "\"");
     else
-        SG_LOG(SG_IO, SG_INFO, "Reading model \""
+        SG_LOG(SG_IO, SG_BULK, "Reading model \""
                << fileName << "\"");
     return cached;
 }
@@ -386,45 +294,41 @@ osg::Node* OptimizeModelPolicy::optimize(osg::Node* node,
     return node;
 }
 
-osg::Node* DefaultCopyPolicy::copy(osg::Node* model, const string& fileName,
-                    const osgDB::ReaderWriter::Options* opt)
-{
-    // 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(model);
-    CopyOp::CopyFlags flags = CopyOp::DEEP_COPY_ALL;
-    flags &= ~CopyOp::DEEP_COPY_TEXTURES;
-    flags &= ~CopyOp::DEEP_COPY_IMAGES;
-    flags &= ~CopyOp::DEEP_COPY_STATESETS;
-    flags &= ~CopyOp::DEEP_COPY_STATEATTRIBUTES;
-    flags &= ~CopyOp::DEEP_COPY_ARRAYS;
-    flags &= ~CopyOp::DEEP_COPY_PRIMITIVES;
-    // This will safe display lists ...
-    flags &= ~CopyOp::DEEP_COPY_DRAWABLES;
-    flags &= ~CopyOp::DEEP_COPY_SHAPES;
-    osg::Node* res = CopyOp(flags)(model);
-    res->addObserver(databaseReference);
-
-    // Update liveries
-    TextureUpdateVisitor liveryUpdate(opt->getDatabasePathList());
-    res->accept(liveryUpdate);
-
-    return res;
-}
-
 string OSGSubstitutePolicy::substitute(const string& name,
                                        const ReaderWriter::Options* opt)
 {
     string fileSansExtension = getNameLessExtension(name);
     string osgFileName = fileSansExtension + ".osg";
-    string absFileName = findDataFile(osgFileName, opt);
+    string absFileName = SGModelLib::findDataFile(osgFileName, opt);
     return absFileName;
 }
 
+
+void
+BuildLeafBVHPolicy::buildBVH(const std::string& fileName, osg::Node* node)
+{
+    SG_LOG(SG_IO, SG_BULK, "Building leaf attached boundingvolume tree for \""
+           << fileName << "\".");
+    BoundingVolumeBuildVisitor bvBuilder(true);
+    node->accept(bvBuilder);
+}
+
+void
+BuildGroupBVHPolicy::buildBVH(const std::string& fileName, osg::Node* node)
+{
+    SG_LOG(SG_IO, SG_BULK, "Building group attached boundingvolume tree for \""
+           << fileName << "\".");
+    BoundingVolumeBuildVisitor bvBuilder(false);
+    node->accept(bvBuilder);
+}
+
+void
+NoBuildBVHPolicy::buildBVH(const std::string& fileName, osg::Node*)
+{
+    SG_LOG(SG_IO, SG_BULK, "Omitting boundingvolume tree for \""
+           << fileName << "\".");
+}
+
 ModelRegistry::ModelRegistry() :
     _defaultCallback(new DefaultCallback(""))
 {
@@ -448,16 +352,16 @@ ReaderWriter::ReadResult
 ModelRegistry::readNode(const string& fileName,
                         const ReaderWriter::Options* opt)
 {
-    ScopedLock<ReentrantMutex> lock(readerMutex);
-    // XXX Workaround for OSG plugin bug.
-    Registry* registry = Registry::instance();
     ReaderWriter::ReadResult res;
-    Node* cached = 0;
     CallbackMap::iterator iter
         = nodeCallbackMap.find(getFileExtension(fileName));
+    ReaderWriter::ReadResult result;
     if (iter != nodeCallbackMap.end() && iter->second.valid())
-        return iter->second->readNode(fileName, opt);
-    return _defaultCallback->readNode(fileName, opt);
+        result = iter->second->readNode(fileName, opt);
+    else
+        result = _defaultCallback->readNode(fileName, opt);
+
+    return result;
 }
 
 class SGReadCallbackInstaller {
@@ -482,7 +386,7 @@ public:
 
 static SGReadCallbackInstaller readCallbackInstaller;
 
-// we get optimal geometry from the loader.
+// we get optimal geometry from the loader (Hah!).
 struct ACOptimizePolicy : public OptimizeModelPolicy {
     ACOptimizePolicy(const string& extension)  :
         OptimizeModelPolicy(extension)
@@ -494,17 +398,22 @@ struct ACOptimizePolicy : public OptimizeModelPolicy {
     {
         ref_ptr<Node> optimized
             = OptimizeModelPolicy::optimize(node, fileName, opt);
+        Group* group = dynamic_cast<Group*>(optimized.get());
         MatrixTransform* transform
             = dynamic_cast<MatrixTransform*>(optimized.get());
-        if (transform && transform->getMatrix().isIdentity()
-            && transform->getName().empty()
-            && transform->getNumChildren() == 1) {
-            optimized = static_cast<Node*>(transform->getChild(0));
-            Group* group = dynamic_cast<Group*>(optimized.get());
+        if (((transform && transform->getMatrix().isIdentity()) || group)
+            && group->getName().empty()
+            && group->getNumChildren() == 1) {
+            optimized = static_cast<Node*>(group->getChild(0));
+            group = dynamic_cast<Group*>(optimized.get());
             if (group && group->getName().empty()
                 && group->getNumChildren() == 1)
                 optimized = static_cast<Node*>(group->getChild(0));
         }
+        const SGReaderWriterXMLOptions* sgopt
+            = dynamic_cast<const SGReaderWriterXMLOptions*>(opt);
+        if (sgopt && sgopt->getInstantiateEffects())
+            optimized = instantiateEffects(optimized.get(), sgopt);
         return optimized.release();
     }
 };
@@ -527,23 +436,15 @@ struct ACProcessPolicy {
         transform->setDataVariance(Object::STATIC);
         transform->setMatrix(m);
         transform->addChild(node);
-        // 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;
-        root->accept(matCriple);
+
         return root;
     }
 };
 
 typedef ModelRegistryCallback<ACProcessPolicy, DefaultCachePolicy,
-                              ACOptimizePolicy, DefaultCopyPolicy,
-                              OSGSubstitutePolicy> ACCallback;
+                              ACOptimizePolicy,
+                              OSGSubstitutePolicy, BuildLeafBVHPolicy>
+ACCallback;
 
 namespace
 {