model paging patch from Till Busch

Comments from Till:
I started the project at the end of february with a simple idea: move all
3d-model loading to the DatabasePager-thread. my first attempts looked
promising, though they were a little too optimistic (or naive?). the patch
has evolved a lot since.

currently it does the following things:
1. revive SGModelLib, move functions for xml-model-loading there

2. replace all calls to sgLoad3dModel with calls to either
SGModelLib::loadModel() or SGModelLib::loadPagedModel()
almost all models will be loaded by the DatabasePager. the few exceptions are:
your own plane, shared models in scenery, random objects, AIBallistic models.

3. simplify mode-loading functions (avoid passing around fg_root)

4. avoid supurious MatrixTransform nodes in loaded models

5. fix some memory leaks

This commit is contained in:

timoore

2008-03-22 09:30:26 +00:00

parent 55c1ac36e3

commit 9dc1b5f6f5

18 changed files with 889 additions and 656 deletions

									
										simgear/structure/subsystem_mgr.hxx
									
		+1
		-1
	
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				@@ -135,7 +135,7 @@ typedef vector<TimingInfo>::iterator eventTimeVecIterator;

				 * subsystems may also override the suspend() and resume() methods to

				 * take different actions.</p>

				 */

				class SGSubsystem

				class SGSubsystem : public SGReferenced

				{

				public: