Commit Graph

11 Commits

Author SHA1 Message Date
Robert Osfield
dd996a3289 Introduced CMake option OSG_PROVIDE_READFILE option that defaults to ON, but when switched to OFF disables the building of the osgDB::read*File() methods,
forcing users to use osgDB::readRef*File() methods.  The later is preferable as it closes a potential threading bug when using paging databases in conjunction
with the osgDB::Registry Object Cache.  This threading bug occurs when one thread gets an object from the Cache via an osgDB::read*File() call where only
a pointer to the object is passed back, so taking a reference to the object is delayed till it gets reassigned to a ref_ptr<>, but at the same time another
thread calls a flush of the Object Cache deleting this object as it's referenceCount is now zero.  Using osgDB::readREf*File() makes sure the a ref_ptr<> is
passed back and the referenceCount never goes to zero.

To ensure the OSG builds when OSG_PROVIDE_READFILE is to OFF the many cases of osgDB::read*File() usage had to be replaced with a ref_ptr<> osgDB::readRef*File()
usage.  The avoid this change causing lots of other client code to be rewritten to handle the use of ref_ptr<> in place of C pointer I introduced a serious of
templte methods in various class to adapt ref_ptr<> to the underly C pointer to be passed to old OSG API's, example of this is found in include/osg/Group:

    bool addChild(Node* child); // old method which can only be used with a Node*

    tempalte<class T> bool addChild(const osg::ref_ptr<T>& child) { return addChild(child.get()); } // adapter template method

These changes together cover 149 modified files, so it's a large submission. This extent of changes are warrent to make use of the Object Cache
and multi-threaded loaded more robust.



git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@15164 16af8721-9629-0410-8352-f15c8da7e697
2015-10-22 13:42:19 +00:00
Robert Osfield
0a1db3d6fc From Jannik Heller, typo fixes
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14832 16af8721-9629-0410-8352-f15c8da7e697
2015-04-13 10:43:56 +00:00
Robert Osfield
70b5297575 From Jannik Heller, typo fixes
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14826 16af8721-9629-0410-8352-f15c8da7e697
2015-04-07 18:01:12 +00:00
Robert Osfield
0a83632f0a Fixed StateSet::Define names to match OpenSceneGraph-Data/shaders.
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14745 16af8721-9629-0410-8352-f15c8da7e697
2015-03-01 15:20:37 +00:00
Robert Osfield
77b8962bcc Deprecated the old ShaderComposition example code so that it's now only invoked if you add a --old to the osgshadercomposition command line.
Introduced a new shader composition example based on the new #pragama and #define based GLSL shader/osg::StateSet::setDefine() functionality now built into the core OSG.


git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14692 16af8721-9629-0410-8352-f15c8da7e697
2015-02-13 10:56:59 +00:00
Robert Osfield
64b26ebeb5 Added debug State::print(std::ostream&) method and extra debug messages in ShaderComposer and ShaderAttribute.
Added better shader composition testing in the osgshadercomposition example.
2010-07-10 17:14:59 +00:00
Robert Osfield
d50bf88bc0 Added some debugging to investigate issue of global default ShaderAttribute not being automatically assigned. 2010-07-07 11:02:15 +00:00
Robert Osfield
46b221a832 Added compile/release and resize of GL objects to ShaderAttribute.
Removed the StateAttribute::compose() method.

Fixed the default type value in ShaderAttribute
2010-07-06 12:19:26 +00:00
Robert Osfield
74ae526bb5 Added support for passing on uniforms from StateAttribute 2010-07-06 10:55:54 +00:00
Robert Osfield
751b0498fe Added basic code injection fields to osg::Shader,
creation of main shader to ShaderComposer and
collection of ShaderComponent to osg::State.
Also added very basic shader set up in osgshadecomposition example.
2010-07-05 16:32:58 +00:00
Robert Osfield
a55c4b7d70 Added basic ShaderComponent class and beginnings osgshadercomposition example 2010-07-02 12:04:20 +00:00