Initial revision

src/osg/TexGen.cpp

@@ -0,0 +1,89 @@
+
+#include "osg/TexGen"
+#include "osg/Input"
+#include "osg/Output"
+
+using namespace osg;
+
+TexGen::TexGen( void )
+{
+    _mode = OBJECT_LINEAR;
+}
+
+
+TexGen::~TexGen( void )
+{
+}
+
+
+TexGen* TexGen::instance()
+{
+    static ref_ptr<TexGen> s_texgen(new TexGen);
+    return s_texgen.get();
+}
+
+
+bool TexGen::readLocalData(Input& fr)
+{
+    bool iteratorAdvanced = false;
+    TexGenMode mode;
+    if (fr[0].matchWord("mode") && matchModeStr(fr[1].getStr(),mode))
+    {
+        _mode = mode;
+        fr+=2;
+        iteratorAdvanced = true;
+    }
+
+    return iteratorAdvanced;
+}
+
+
+bool TexGen::matchModeStr(const char* str,TexGenMode& mode)
+{
+    if (strcmp(str,"EYE_LINEAR")==0) mode = EYE_LINEAR;
+    else if (strcmp(str,"OBJECT_LINEAR")==0) mode = OBJECT_LINEAR;
+    else if (strcmp(str,"SPHERE_MAP")==0) mode = SPHERE_MAP;
+    else return false;
+    return true;
+}
+
+
+const char* TexGen::getModeStr(TexGenMode mode)
+{
+    switch(mode)
+    {
+        case(EYE_LINEAR): return "EYE_LINEAR";
+        case(OBJECT_LINEAR): return "OBJECT_LINEAR";
+        case(SPHERE_MAP): return "SPHERE_MAP";
+    }
+    return "";
+}
+
+
+bool TexGen::writeLocalData(Output& fw)
+{
+    fw.indent() << "mode " << getModeStr(_mode) << endl;
+
+    return true;
+}
+
+
+void TexGen::enable( void )
+{
+    glEnable( GL_TEXTURE_GEN_S );
+    glEnable( GL_TEXTURE_GEN_T );
+}
+
+
+void TexGen::disable( void )
+{
+    glDisable( GL_TEXTURE_GEN_S );
+    glDisable( GL_TEXTURE_GEN_T );
+}
+
+
+void TexGen::apply( void )
+{
+    glTexGeni( GL_S, GL_TEXTURE_GEN_MODE, _mode );
+    glTexGeni( GL_T, GL_TEXTURE_GEN_MODE, _mode );
+}