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| author | Sven Gothel <[email protected]> | 2013-11-04 15:07:14 +0100 |
|---|---|---|
| committer | Sven Gothel <[email protected]> | 2013-11-04 15:07:14 +0100 |
| commit | 613e33ee8ffc1f2b9c5db1e1b5bb5253a159ed6d (patch) | |
| tree | 761c21e05e274bcea3852406fdbc63c25f266b10 /src/jogl/classes/jogamp/opengl/GLGraphicsConfigurationUtil.java | |
| parent | 7433e513c1f109f75aa34c224b1f5f14b612cba8 (diff) | |
Bug 888 - Validate CPU Runtime Performance: X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(..)
X11GLXGraphicsConfiguration.GLXFBConfig2GLCapabilities(..) ran over all FB configs and for each it grabbed
native config values separately. Fetching them in bulk mode saves around 7% of this function's cost.
Also reuse XRenderPictFormat instance for 'XRenderDirectFormat XRenderFindVisualFormat(..)' call,
saving a few NIO creation cycles w/ StructAccessor.
Biggest savior is X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationFBConfig()'s
fast path w/o chooser and usable 1st FBConfig. Here we only issue 'GLXFBConfig2GLCapabilities(..)'
on the first valid entry.
Test w/ 50 X11GLXGraphicsConfigurationFactory.chooseGraphicsConfigurationFBConfig() invocations:
- pre change: 1.708 ms
- post change: 650 ms
Time is no spent almost solely on native glXChooseFBConfig (546ms).
Diffstat (limited to 'src/jogl/classes/jogamp/opengl/GLGraphicsConfigurationUtil.java')
0 files changed, 0 insertions, 0 deletions