[ quesa-Bugs-1005268 ] Resizing contexts should not force a rebuild

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Bugs item #1005268, was opened at 2004-08-07 17:13
Message generated for change (Tracker Item Submitted) made by Item Submitter
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https://sourceforge.net/tracker/?func=detail&atid=442052&aid=1005268&group_id=45158

Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Frank Condello (pox)
Assigned to: Nobody/Anonymous (nobody)
Summary: Resizing contexts should not force a rebuild

Initial Comment:
Currently, Quesa will forcefully rebuild a GL context when it is 
resized. This leads to a UI hang while Quesa reloads all active 
textures, and can adversely affect application with freely sizable 
windows/panes even with just a few textures loaded.

The problem however is two-fold...

Quesa must first handle resizes within the library, by providing a 
GLDrawContext_UpdateSize function in GLDrawContext.c. All 
renderers must catch resize flags 
(kQ3XDrawContextValidationWindowSize and 
kQ3XDrawContextValidationPane) in their StartFrame function and 
call GLDrawContext_UpdateSize instead of forcing a context 
rebuild.

Once the library can handle context resizing, some applications 
may require modification to take advantage of this functionality. 
The Qut framework for example, creates a new context when a 
window is resized, but it should really let Quesa handle that 
internally.

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https://sourceforge.net/tracker/?func=detail&atid=442052&aid=1005268&group_id=45158