]> git.mxchange.org Git - simgear.git/blobdiff - simgear/scene/material/mat.cxx
materials.xml format update
[simgear.git] / simgear / scene / material / mat.cxx
index 77eeab32d5c96fe213064b46f75f889942395c6c..8d53f86195a9bb0d0e7d8b61b56ab89b94568943 100644 (file)
 
 #include <string.h>
 #include <map>
-SG_USING_STD(map);
+#include <vector>
+#include<string>
 
-#include <plib/ul.h>
+#include <boost/foreach.hpp>
+#include "mat.hxx"
 
-#ifdef SG_MATH_EXCEPTION_CLASH
-#  include <math.h>
-#endif
+#include <osg/CullFace>
+#include <osg/Material>
+#include <osg/ShadeModel>
+#include <osg/StateSet>
+#include <osg/TexEnv>
+#include <osg/Texture2D>
+#include <osgDB/ReaderWriter>
+#include <osgDB/ReadFile>
+#include <osgDB/Registry>
+#include <osgDB/FileUtils>
 
 #include <simgear/debug/logstream.hxx>
 #include <simgear/misc/sg_path.hxx>
 #include <simgear/misc/sgstream.hxx>
+#include <simgear/scene/model/SGReaderWriterXMLOptions.hxx>
+#include <simgear/props/props_io.hxx>
+#include <simgear/scene/model/model.hxx>
+#include <simgear/scene/util/RenderConstants.hxx>
+#include <simgear/scene/util/StateAttributeFactory.hxx>
 
-#include "mat.hxx"
+#include "Effect.hxx"
+#include "Technique.hxx"
+#include "Pass.hxx"
+
+using std::map;
+using std::string;
+using namespace simgear;
 
 \f
 ////////////////////////////////////////////////////////////////////////
 // Constructors and destructor.
 ////////////////////////////////////////////////////////////////////////
 
-
-SGMaterial::SGMaterial( const string &fg_root, const SGPropertyNode *props, const char *season )
+SGMaterial::_internal_state::_internal_state(Effect *e, bool l,
+                                             const SGReaderWriterXMLOptions* o)
+    : effect(e), effect_realized(l), options(o)
 {
-    init();
-    read_properties( fg_root, props, season );
-    build_ssg_state( false );
 }
 
-SGMaterial::SGMaterial( const string &texpath )
+SGMaterial::_internal_state::_internal_state(Effect *e, const string &t, bool l,
+                                             const SGReaderWriterXMLOptions* o)
+    : effect(e), effect_realized(l), options(o)
 {
-    init();
+    texture_paths.push_back(std::make_pair(t,0));
+}
 
-    _internal_state st( NULL, texpath, false );
-    _status.push_back( st );
+void SGMaterial::_internal_state::add_texture(const std::string &t, int i)
+{
+    texture_paths.push_back(std::make_pair(t,i));
+}
 
-    build_ssg_state( true );
+SGMaterial::SGMaterial( const SGReaderWriterXMLOptions* options,
+                        const SGPropertyNode *props )
+{
+    init();
+    read_properties( options, props );
+    buildEffectProperties(options);
 }
 
-SGMaterial::SGMaterial( ssgSimpleState *s )
+SGMaterial::SGMaterial( const osgDB::ReaderWriter::Options* options,
+                        const SGPropertyNode *props )
 {
+    osg::ref_ptr<const SGReaderWriterXMLOptions> sgOptions;
+    if (options)
+        sgOptions = new SGReaderWriterXMLOptions(*options);
     init();
-    set_ssg_state( s );
+    read_properties( sgOptions.get(), props );
+    buildEffectProperties(sgOptions.get());
 }
 
 SGMaterial::~SGMaterial (void)
 {
 }
 
-
 \f
 ////////////////////////////////////////////////////////////////////////
 // Public methods.
 ////////////////////////////////////////////////////////////////////////
 
 void
-SGMaterial::read_properties( const string &fg_root, const SGPropertyNode * props, const char *season )
+SGMaterial::read_properties(const SGReaderWriterXMLOptions* options,
+                            const SGPropertyNode *props)
 {
                                // Gather the path(s) to the texture(s)
   vector<SGPropertyNode_ptr> textures = props->getChildren("texture");
   for (unsigned int i = 0; i < textures.size(); i++)
   {
     string tname = textures[i]->getStringValue();
-    string otname = tname;
-    if (season && strncmp(season, "summer", 6))
-    {
-        if (tname.substr(0,7) == "Terrain")
-            tname.insert(7,"."+string(season));
+    if (tname.empty()) {
+        tname = "unknown.rgb";
+    }
+    SGPath tpath("Textures.high");
+    tpath.append(tname);
+    string fullTexPath = osgDB::findDataFile(tpath.str(), options);
+    if (fullTexPath.empty()) {
+      tpath = SGPath("Textures");
+      tpath.append(tname);
+      fullTexPath = osgDB::findDataFile(tpath.str(), options);
     }
 
-    if (tname == "") {
-        tname = "unknown.rgb";
+    if (!fullTexPath.empty() ) {
+      _internal_state st( NULL, fullTexPath, false, options );
+      _status.push_back( st );
     }
+  }
 
-    SGPath tpath( fg_root );
-    tpath.append("Textures.high");
-    tpath.append(tname);
-    if ( !ulFileExists(tpath.c_str()) ) {
-      tpath = SGPath( fg_root );
-      tpath.append("Textures");
+  vector<SGPropertyNode_ptr> texturesets = props->getChildren("texture-set");
+  for (unsigned int i = 0; i < texturesets.size(); i++)
+  {
+    _internal_state st( NULL, false, options );
+    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 = osgDB::findDataFile(tpath.str(), options);
+      if (fullTexPath.empty()) {
+        tpath = SGPath("Textures");
+        tpath.append(tname);
+        fullTexPath = osgDB::findDataFile(tpath.str(), options);
+      }
+      st.add_texture(fullTexPath, textures[j]->getIndex());
     }
 
-    if ( ulFileExists(tpath.c_str()) ) {
-      _internal_state st( NULL, tpath.str(), false );
+    if (!st.texture_paths.empty() ) {
       _status.push_back( st );
     }
   }
 
-  if (textures.size() == 0) {
-    string tname = "unknown.rgb";
-    SGPath tpath( fg_root );
-    tpath.append("Textures");
-    tpath.append(tname);
-    _internal_state st( NULL, tpath.str(), true );
+  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 );
   }
 
@@ -131,6 +182,26 @@ SGMaterial::read_properties( const string &fg_root, const SGPropertyNode * props
   wrapv = props->getBoolValue("wrapv", true);
   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);
+  }
+
+  // surface values for use with ground reactions
+  solid = props->getBoolValue("solid", true);
+  friction_factor = props->getDoubleValue("friction-factor", 1.0);
+  rolling_friction = props->getDoubleValue("rolling-friction", 0.02);
+  bumpiness = props->getDoubleValue("bumpiness", 0.0);
+  load_resistance = props->getDoubleValue("load-resistance", 1e30);
 
   // Taken from default values as used in ac3d
   ambient[0] = props->getDoubleValue("ambient/r", 0.2);
@@ -155,10 +226,21 @@ SGMaterial::read_properties( const string &fg_root, const SGPropertyNode * props
 
   shininess = props->getDoubleValue("shininess", 1.0);
 
+  if (props->hasChild("effect"))
+      effect = props->getStringValue("effect");
+  
   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");
+  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]);
+  }
 }
 
 
@@ -176,8 +258,16 @@ SGMaterial::init ()
     ysize = 0;
     wrapu = true;
     wrapv = true;
+
     mipmap = true;
     light_coverage = 0.0;
+
+    solid = true;
+    friction_factor = 1;
+    rolling_friction = 0.02;
+    bumpiness = 0;
+    load_resistance = 1e30;
+
     shininess = 1.0;
     for (int i = 0; i < 4; i++) {
         ambient[i]  = (i < 3) ? 0.2 : 1.0;
@@ -185,95 +275,97 @@ SGMaterial::init ()
         diffuse[i]  = (i < 3) ? 0.8 : 1.0;
         emission[i] = (i < 3) ? 0.0 : 1.0;
     }
+    effect = "Effects/terrain-default";
 }
 
-bool
-SGMaterial::load_texture ( int n )
+Effect* SGMaterial::get_effect(int n)
 {
-    int i   = (n >= 0) ? n   : 0 ;
-    int end = (n >= 0) ? n+1 : _status.size();
-
-    for (; i < end; i++)
-    {
-        if ( !_status[i].texture_loaded ) {
-            SG_LOG( SG_GENERAL, SG_INFO, "Loading deferred texture "
-                                          << _status[i].texture_path );
-            _status[i].state->setTexture(
-                   (char *)_status[i].texture_path.c_str(),
-                   wrapu, wrapv, mipmap );
-            _status[i].texture_loaded = true;
-       }
+    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;
     }
-    return true;
+    // 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();
 }
 
-ssgSimpleState *
-SGMaterial::get_state (int n) const
+void SGMaterial::buildEffectProperties(const SGReaderWriterXMLOptions* options)
 {
-    if (_status.size() == 0) {
-        SG_LOG( SG_GENERAL, SG_WARN, "No state available.");
-        return NULL;
+    using namespace osg;
+    ref_ptr<SGReaderWriterXMLOptions> xmlOptions;
+    if (options)
+        xmlOptions = new SGReaderWriterXMLOptions(*options);
+    ref_ptr<SGMaterialUserData> user = new SGMaterialUserData(this);
+    SGPropertyNode_ptr propRoot = new SGPropertyNode();
+    makeChild(propRoot, "inherits-from")->setStringValue(effect);
+    SGPropertyNode* paramProp = makeChild(propRoot, "parameters");
+    SGPropertyNode* materialProp = makeChild(paramProp, "material");
+    makeChild(materialProp, "ambient")->setValue(SGVec4d(ambient));    
+    makeChild(materialProp, "diffuse")->setValue(SGVec4d(diffuse));
+    makeChild(materialProp, "specular")->setValue(SGVec4d(specular));
+    makeChild(materialProp, "emissive")->setValue(SGVec4d(emission));
+    makeChild(materialProp, "shininess")->setFloatValue(shininess);
+    if (ambient[3] < 1 || diffuse[3] < 1 ||
+        specular[3] < 1 || emission[3] < 1) {
+        makeChild(paramProp, "transparent")->setBoolValue(true);
+        SGPropertyNode* binProp = makeChild(paramProp, "render-bin");
+        makeChild(binProp, "bin-number")->setIntValue(TRANSPARENT_BIN);
+        makeChild(binProp, "bin-name")->setStringValue("DepthSortedBin");
+    }
+    BOOST_FOREACH(_internal_state& matState, _status)
+    {
+        SGPropertyNode_ptr effectProp = new SGPropertyNode();
+        copyProperties(propRoot, effectProp);
+        SGPropertyNode* effectParamProp = effectProp->getChild("parameters", 0);
+        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");
+        }
+        matState.effect = makeEffect(effectProp, false, xmlOptions.get());
+        matState.effect->setUserData(user.get());
     }
-
-    ssgSimpleState *st = (n >= 0) ? _status[n].state
-                                  : _status[_current_ptr].state;
-    ((SGMaterial *)this)->_current_ptr += 1;
-    if (_current_ptr >= _status.size())
-        ((SGMaterial *)this)->_current_ptr = 0;
-
-    return st;
 }
 
-
-void 
-SGMaterial::build_ssg_state( bool defer_tex_load )
+SGMaterialGlyph* SGMaterial::get_glyph (const string& name) const
 {
-    GLenum shade_model = GL_SMOOTH;
-    
-    for (unsigned int i = 0; i < _status.size(); i++)
-    {
-        ssgSimpleState *state = new ssgSimpleState();
-
-        // Set up the textured state
-        state->setShadeModel( shade_model );
-        state->enable( GL_LIGHTING );
-        state->enable ( GL_CULL_FACE ) ;
-        state->enable( GL_TEXTURE_2D );
-        state->disable( GL_BLEND );
-        state->disable( GL_ALPHA_TEST );
-
-        if ( !defer_tex_load ) {
-            SG_LOG(SG_INPUT, SG_INFO, "    " << _status[i].texture_path );
-           state->setTexture( (char *)_status[i].texture_path.c_str(),
-                                wrapu, wrapv );
-            _status[i].texture_loaded = true;
-        } else {
-            _status[i].texture_loaded = false;
-        }
+  map<string, SGSharedPtr<SGMaterialGlyph> >::const_iterator it;
+  it = glyphs.find(name);
+  if (it == glyphs.end())
+    return 0;
 
-        state->enable( GL_COLOR_MATERIAL );
-        state->setMaterial ( GL_AMBIENT,
-                             ambient[0], ambient[1],
-                             ambient[2], ambient[3] ) ;
-        state->setMaterial ( GL_DIFFUSE,
-                            diffuse[0], diffuse[1],
-                            diffuse[2], diffuse[3] ) ;
-        state->setMaterial ( GL_SPECULAR,
-                            specular[0], specular[1],
-                            specular[2], specular[3] ) ;
-        state->setMaterial ( GL_EMISSION,
-                            emission[0], emission[1],
-                            emission[2], emission[3] ) ;
-        state->setShininess ( shininess );
-
-        _status[i].state = state;
-    }
+  return it->second;
 }
 
+\f
+////////////////////////////////////////////////////////////////////////
+// SGMaterialGlyph.
+////////////////////////////////////////////////////////////////////////
 
-void SGMaterial::set_ssg_state( ssgSimpleState *s )
+SGMaterialGlyph::SGMaterialGlyph(SGPropertyNode *p) :
+    _left(p->getDoubleValue("left", 0.0)),
+    _right(p->getDoubleValue("right", 1.0))
 {
-    _status.push_back( _internal_state( s, "", true ) );
 }
 
-// end of mat.cxx
+void
+SGSetTextureFilter( int max) {
+       SGSceneFeatures::instance()->setTextureFilter( max);
+}
+
+int
+SGGetTextureFilter() {
+       return SGSceneFeatures::instance()->getTextureFilter();
+}