]> git.mxchange.org Git - simgear.git/blobdiff - simgear/scene/material/mat.cxx
Make use of SGReaderWriterOptions::copyOrCreate in SGMaterial.
[simgear.git] / simgear / scene / material / mat.cxx
index 2fc7e9c84c3573c09a958419fbff39ca08e21c5a..91303ac20e67f45ba0e14ef0f8a07eb25e0c5da1 100644 (file)
@@ -30,7 +30,7 @@
 #include <string.h>
 #include <map>
 #include <vector>
-#include<string>
+#include <string>
 
 #include <boost/foreach.hpp>
 #include "mat.hxx"
@@ -40,6 +40,7 @@
 #include <osg/ShadeModel>
 #include <osg/StateSet>
 #include <osg/TexEnv>
+#include <osg/Texture>
 #include <osg/Texture2D>
 #include <osgDB/ReaderWriter>
 #include <osgDB/ReadFile>
@@ -49,6 +50,7 @@
 #include <simgear/debug/logstream.hxx>
 #include <simgear/misc/sg_path.hxx>
 #include <simgear/misc/sgstream.hxx>
+#include <simgear/scene/util/SGReaderWriterOptions.hxx>
 #include <simgear/props/props_io.hxx>
 #include <simgear/scene/model/model.hxx>
 #include <simgear/scene/util/RenderConstants.hxx>
@@ -67,20 +69,44 @@ using namespace simgear;
 // Constructors and destructor.
 ////////////////////////////////////////////////////////////////////////
 
-SGMaterial::_internal_state::_internal_state(Effect *e, const string &t, bool l,
-                                             const osgDB::ReaderWriter::Options* o ) :
-  effect(e), texture_path(t), effect_realized(l), options(o)
+SGMaterial::_internal_state::_internal_state(Effect *e, bool l,
+                                             const SGReaderWriterOptions* o)
+    : effect(e), effect_realized(l), options(o)
 {
 }
 
-SGMaterial::SGMaterial( const osgDB::ReaderWriter::Options* options,
-                        const SGPropertyNode *props )
+SGMaterial::_internal_state::_internal_state(Effect *e, const string &t, bool l, 
+                                             const SGReaderWriterOptions* o)
+    : effect(e), effect_realized(l), options(o)
+{
+    texture_paths.push_back(std::make_pair(t,0));
+}
+
+void SGMaterial::_internal_state::add_texture(const std::string &t, int i)
+{
+    texture_paths.push_back(std::make_pair(t,i));
+}
+
+SGMaterial::SGMaterial( const SGReaderWriterOptions* options,
+                        const SGPropertyNode *props,
+                        SGPropertyNode *prop_root )
 {
     init();
-    read_properties( options, props );
+    read_properties( options, props, prop_root );
     buildEffectProperties(options);
 }
 
+SGMaterial::SGMaterial( const osgDB::Options* options,
+                        const SGPropertyNode *props, 
+                        SGPropertyNode *prop_root)
+{
+    osg::ref_ptr<SGReaderWriterOptions> opt;
+    opt = SGReaderWriterOptions::copyOrCreate(options);
+    init();
+    read_properties(opt.get(), props, prop_root);
+    buildEffectProperties(opt.get());
+}
+
 SGMaterial::~SGMaterial (void)
 {
 }
@@ -91,39 +117,131 @@ SGMaterial::~SGMaterial (void)
 ////////////////////////////////////////////////////////////////////////
 
 void
-SGMaterial::read_properties(const osgDB::ReaderWriter::Options* options,
-                            const SGPropertyNode *props)
+SGMaterial::read_properties(const SGReaderWriterOptions* options,
+                            const SGPropertyNode *props,
+                            SGPropertyNode *prop_root)
 {
-                               // Gather the path(s) to the texture(s)
-  vector<SGPropertyNode_ptr> textures = props->getChildren("texture");
+  std::vector<bool> dds;
+  std::vector<SGPropertyNode_ptr> textures = props->getChildren("texture");
   for (unsigned int i = 0; i < textures.size(); i++)
   {
     string tname = textures[i]->getStringValue();
+    
     if (tname.empty()) {
         tname = "unknown.rgb";
     }
+    
     SGPath tpath("Textures.high");
     tpath.append(tname);
-    string fullTexPath = osgDB::findDataFile(tpath.str(), options);
+    string fullTexPath = SGModelLib::findDataFile(tpath.str(), options);
     if (fullTexPath.empty()) {
       tpath = SGPath("Textures");
       tpath.append(tname);
-      fullTexPath = osgDB::findDataFile(tpath.str(), options);
+      fullTexPath = SGModelLib::findDataFile(tpath.str(), options);
     }
-
+    
+    if (tpath.lower_extension() == "dds") {
+      dds.push_back(true);
+    } else {
+      dds.push_back(false);      
+    }  
+    
     if (!fullTexPath.empty() ) {
       _internal_state st( NULL, fullTexPath, false, options );
       _status.push_back( st );
     }
   }
 
-  if (textures.size() == 0) {
+  std::vector<SGPropertyNode_ptr> texturesets = props->getChildren("texture-set");
+  for (unsigned int i = 0; i < texturesets.size(); i++)
+  {
+    _internal_state st( NULL, false, options );
+    std::vector<SGPropertyNode_ptr> textures = texturesets[i]->getChildren("texture");
+    for (unsigned int j = 0; j < textures.size(); j++)
+    {
+      string tname = textures[j]->getStringValue();
+      if (tname.empty()) {
+          tname = "unknown.rgb";
+      }
+
+      SGPath tpath("Textures.high");
+      tpath.append(tname);
+      string fullTexPath = SGModelLib::findDataFile(tpath.str(), options);
+      if (fullTexPath.empty()) {
+        tpath = SGPath("Textures");
+        tpath.append(tname);
+        fullTexPath = SGModelLib::findDataFile(tpath.str(), options);
+      }
+      
+      if (j == 0) {
+        if (tpath.lower_extension() == "dds") {
+          dds.push_back(true);
+        } else {
+          dds.push_back(false);      
+        }  
+      }
+      
+      st.add_texture(fullTexPath, textures[j]->getIndex());
+    }
+
+    if (!st.texture_paths.empty() ) {
+      _status.push_back( st );
+    }
+  }
+
+  if (textures.size() == 0 && texturesets.size() == 0) {
     SGPath tpath("Textures");
     tpath.append("Terrain");
     tpath.append("unknown.rgb");
     _internal_state st( NULL, tpath.str(), true, options );
     _status.push_back( st );
   }
+  
+  std::vector<SGPropertyNode_ptr> masks = props->getChildren("object-mask");
+  for (unsigned int i = 0; i < masks.size(); i++)
+  {
+    string omname = masks[i]->getStringValue();
+    
+    if (! omname.empty()) {
+      SGPath ompath("Textures.high");
+      ompath.append(omname);
+      string fullMaskPath = SGModelLib::findDataFile(ompath.str(), options);
+      
+      if (fullMaskPath.empty()) {
+        ompath = SGPath("Textures");
+        ompath.append(omname);
+        fullMaskPath = SGModelLib::findDataFile(ompath.str(), options);
+      }    
+      
+      osg::Image* image = osgDB::readImageFile(fullMaskPath, options);
+      if (image->valid())
+      {
+        osg::Texture2D* object_mask = new osg::Texture2D;
+        
+        bool dds_mask = (ompath.lower_extension() == "dds");
+        
+        if (dds[i] != dds_mask) {
+          // Texture format does not match mask format. This is relevant for 
+          // the object mask, as DDS textures have an origin at the bottom 
+          // left rather than top left, therefore we flip the object mask 
+          // vertically.
+          image->flipVertical();          
+        }
+        
+        object_mask->setImage(image);
+        
+        // We force the filtering to be nearest, as the red channel (rotation)
+        // in particular, doesn't make sense to be interpolated between pixels.
+        object_mask->setFilter(osg::Texture::MIN_FILTER, osg::Texture::NEAREST);
+        object_mask->setFilter(osg::Texture::MAG_FILTER, osg::Texture::NEAREST);
+        
+        object_mask->setDataVariance(osg::Object::STATIC);
+        object_mask->setWrap(osg::Texture::WRAP_S, osg::Texture::REPEAT);
+        object_mask->setWrap(osg::Texture::WRAP_T, osg::Texture::REPEAT);
+        _masks.push_back(object_mask);
+      } 
+    }
+  } 
 
   xsize = props->getDoubleValue("xsize", 0.0);
   ysize = props->getDoubleValue("ysize", 0.0);
@@ -132,19 +250,29 @@ SGMaterial::read_properties(const osgDB::ReaderWriter::Options* options,
   mipmap = props->getBoolValue("mipmap", true);
   light_coverage = props->getDoubleValue("light-coverage", 0.0);
   wood_coverage = props->getDoubleValue("wood-coverage", 0.0);
-  wood_size = props->getDoubleValue("wood-size", 0.0);
-  tree_density = props->getDoubleValue("tree-density", 1.0);
   tree_height = props->getDoubleValue("tree-height-m", 0.0);
   tree_width = props->getDoubleValue("tree-width-m", 0.0);
   tree_range = props->getDoubleValue("tree-range-m", 0.0);
   tree_varieties = props->getIntValue("tree-varieties", 1);
 
   const SGPropertyNode* treeTexNode = props->getChild("tree-texture");
+  
   if (treeTexNode) {
     string treeTexPath = props->getStringValue("tree-texture");
-    tree_texture = osgDB::findDataFile(treeTexPath, options);
+    
+    if (! treeTexPath.empty()) {
+      SGPath treePath("Textures.high");
+      treePath.append(treeTexPath);
+      tree_texture = SGModelLib::findDataFile(treePath.str(), options);
+      
+      if (tree_texture.empty()) {
+        treePath = SGPath("Textures");
+        treePath.append(treeTexPath);
+        tree_texture = SGModelLib::findDataFile(treePath.str(), options);
+      }    
+    }
   }
-
+  
   // surface values for use with ground reactions
   solid = props->getBoolValue("solid", true);
   friction_factor = props->getDoubleValue("friction-factor", 1.0);
@@ -178,18 +306,26 @@ SGMaterial::read_properties(const osgDB::ReaderWriter::Options* options,
   if (props->hasChild("effect"))
       effect = props->getStringValue("effect");
   
-  vector<SGPropertyNode_ptr> object_group_nodes =
+  std::vector<SGPropertyNode_ptr> object_group_nodes =
     ((SGPropertyNode *)props)->getChildren("object-group");
   for (unsigned int i = 0; i < object_group_nodes.size(); i++)
     object_groups.push_back(new SGMatModelGroup(object_group_nodes[i]));
 
   // read glyph table for taxi-/runway-signs
-  vector<SGPropertyNode_ptr> glyph_nodes = props->getChildren("glyph");
+  std::vector<SGPropertyNode_ptr> glyph_nodes = props->getChildren("glyph");
   for (unsigned int i = 0; i < glyph_nodes.size(); i++) {
     const char *name = glyph_nodes[i]->getStringValue("name");
     if (name)
       glyphs[name] = new SGMaterialGlyph(glyph_nodes[i]);
   }
+  
+  // Read conditions node  
+  const SGPropertyNode *conditionNode = props->getChild("condition");
+  if (conditionNode) {
+    condition = sgReadCondition(prop_root, conditionNode);
+  } 
+  
+  
 }
 
 
@@ -202,7 +338,6 @@ void
 SGMaterial::init ()
 {
     _status.clear();
-    _current_ptr = 0;
     xsize = 0;
     ysize = 0;
     wrapu = true;
@@ -227,26 +362,50 @@ SGMaterial::init ()
     effect = "Effects/terrain-default";
 }
 
-Effect* SGMaterial::get_effect(int n)
+Effect* SGMaterial::get_effect(int i)
+{    
+    if(!_status[i].effect_realized) {
+        _status[i].effect->realizeTechniques(_status[i].options.get());
+        _status[i].effect_realized = true;
+    }
+    return _status[i].effect.get();
+}
+
+Effect* SGMaterial::get_effect(SGTexturedTriangleBin triangleBin)
 {
     if (_status.size() == 0) {
         SG_LOG( SG_GENERAL, SG_WARN, "No effect available.");
         return 0;
     }
-    int i = n >= 0 ? n : _current_ptr;
-    if(!_status[i].effect_realized) {
-        _status[i].effect->realizeTechniques(_status[i].options.get());
-        _status[i].effect_realized = true;
+    
+    int i = triangleBin.getTextureIndex() % _status.size();
+    return get_effect(i);
+}
+
+Effect* SGMaterial::get_effect()
+{
+    return get_effect(0);
+}
+
+
+osg::Texture2D* SGMaterial::get_object_mask(SGTexturedTriangleBin triangleBin)
+{
+    if (_status.size() == 0) {
+        SG_LOG( SG_GENERAL, SG_WARN, "No mask available.");
+        return 0;
+    }
+    
+    // Note that the object mask is closely linked to the texture/effect
+    // so we index based on the texture index, 
+    unsigned int i = triangleBin.getTextureIndex() % _status.size();
+    if (i < _masks.size()) {
+        return _masks[i];      
+    } else {
+        return 0;      
     }
-    // XXX This business of returning a "random" alternate texture is
-    // really bogus. It means that the appearance of the terrain
-    // depends on the order in which it is paged in!
-    _current_ptr = (_current_ptr + 1) % _status.size();
-    return _status[i].effect.get();
 }
 
-void SGMaterial::buildEffectProperties(const osgDB::ReaderWriter::Options*
-                                       options)
+void SGMaterial::buildEffectProperties(const SGReaderWriterOptions* options)
 {
     using namespace osg;
     ref_ptr<SGMaterialUserData> user = new SGMaterialUserData(this);
@@ -271,14 +430,21 @@ void SGMaterial::buildEffectProperties(const osgDB::ReaderWriter::Options*
         SGPropertyNode_ptr effectProp = new SGPropertyNode();
         copyProperties(propRoot, effectProp);
         SGPropertyNode* effectParamProp = effectProp->getChild("parameters", 0);
-        SGPropertyNode* texProp = makeChild(effectParamProp, "texture");
-        makeChild(texProp, "image")->setStringValue(matState.texture_path);
-        makeChild(texProp, "filter")
-            ->setStringValue(mipmap ? "linear-mipmap-linear" : "nearest");
-        makeChild(texProp, "wrap-s")
-            ->setStringValue(wrapu ? "repeat" : "clamp");
-        makeChild(texProp, "wrap-t")
-            ->setStringValue(wrapv ? "repeat" : "clamp");
+        for (unsigned int i = 0; i < matState.texture_paths.size(); i++) {
+            SGPropertyNode* texProp = makeChild(effectParamProp, "texture", matState.texture_paths[i].second);
+            makeChild(texProp, "image")->setStringValue(matState.texture_paths[i].first);
+            makeChild(texProp, "filter")
+                ->setStringValue(mipmap ? "linear-mipmap-linear" : "nearest");
+            makeChild(texProp, "wrap-s")
+                ->setStringValue(wrapu ? "repeat" : "clamp");
+            makeChild(texProp, "wrap-t")
+                ->setStringValue(wrapv ? "repeat" : "clamp");
+        }
+        makeChild(effectParamProp, "xsize")->setDoubleValue(xsize);
+        makeChild(effectParamProp, "ysize")->setDoubleValue(ysize);
+        makeChild(effectParamProp, "scale")->setValue(SGVec3d(xsize,ysize,0.0));
+        makeChild(effectParamProp, "light-coverage")->setDoubleValue(light_coverage);
+
         matState.effect = makeEffect(effectProp, false, options);
         matState.effect->setUserData(user.get());
     }