| Summary: | Disable SGI_swap_control extension for DRI2 | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Owen Taylor <otaylor> |
| Component: | GLX | Assignee: | mesa-dev |
| Status: | RESOLVED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | ||
| Version: | git | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: | Patch as described | ||
Created attachment 26496 [details] [review] Patch as described This patch is present in the master and mesa_7_5_branch branches Mass version move, cvs -> git |
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While there are plans to support VBlank sync in DRI2, for the moment, for a direct context SGI_swap_control is reported, glXSwapIntervalSGI() appears to succeed, but does nothing. Disabling reporting the extension allows apps to fall back to: A) SGI_video_sync which still basically works (it's just the old DRI1 method of blocking in the kernel until vblank) B) Time-based frame-rate limiting mechanisms