FGFS-4.1/OpenSceneGraph
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Added support for releasing GLObjects, and renamed DisplayListVisitor the

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GLObjectVisitor to better fit its function, and added support for releasing
objects as well as compiling them.
This commit is contained in:
Robert Osfield
2004-07-20 05:37:59 +00:00
parent 12a315ec1d
commit aa833acfd3
21 changed files with 214 additions and 73 deletions
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34
src/osg/Drawable.cpp
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@@ -199,7 +199,7 @@ void Drawable::dirtyBound()
}
}
void Drawable::compile(State& state) const
void Drawable::compileGLObjects(State& state) const
{
if (!_useDisplayList) return;
@@ -216,12 +216,6 @@ void Drawable::compile(State& state) const
glDeleteLists( globj, 1 );
}
if (_stateset.valid())
{
_stateset->compile(state);
}
globj = glGenLists( 1 );
glNewList( globj, GL_COMPILE );
@@ -234,6 +228,32 @@ void Drawable::compile(State& state) const
}
void Drawable::releaseGLObjects(State* state) const
{
if (!_useDisplayList) return;
if (state)
{
// get the contextID (user defined ID of 0 upwards) for the
// current OpenGL context.
unsigned int contextID = state->getContextID();
// get the globj for the current contextID.
GLuint& globj = _globjList[contextID];
// call the globj if already set otherwise comple and execute.
if( globj != 0 )
{
glDeleteLists( globj, 1 );
globj = 0;
}
}
else
{
const_cast<Drawable*>(this)->dirtyDisplayList();
}
}
void Drawable::setSupportsDisplayList(bool flag)
{
// if value unchanged simply return.