Changeset 10924 for OpenSceneGraph/trunk/src/osg/Image.cpp

Timestamp:

01/07/10 13:14:47 (3 years ago)

Author:

robert

Message:

Refactored the way that osg::Image/ImageSequence manages the update callback that needs to be attached to Textures to make it possible to use the Image::update() mechansim in other subclasses from osg::Image.
To enable the automatic attachment of the required update callback to call osg::Image::update(..) subclasses from osg::Image will
need to implement the osg::Image::requestUpdateCall() and return true, and implement the osg::Image::update(NodeVisitor?*) method to recieve the update call during the update traversal.

Files:

• OpenSceneGraph/trunk/src/osg/Image.cpp (modified) (1 diff)

OpenSceneGraph/trunk/src/osg/Image.cpp

@@ -63 +63 @@
 using namespace osg;
 using namespace std;
+
+void Image::UpdateCallback::operator () (osg::StateAttribute* attr, osg::NodeVisitor* nv)
+{
+    osg::Texture* texture = attr ? attr->asTexture() : 0;
+
+    // osg::notify(osg::NOTICE)<<"ImageSequence::UpdateCallback::"<<texture<<std::endl;
+    if (texture)
+    {
+        for(unsigned int i=0; i<texture->getNumImages(); ++i)
+        {
+            texture->getImage(i)->update(nv);
+        }
+    }
+}
 
 Image::Image()