| Summary: | presentations in Impress really slow, when images are included | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Product: | xorg | Reporter: | Martin Stolpe <martinstolpe> | ||||||
| Component: | Lib/other | Assignee: | Xorg Project Team <xorg-team> | ||||||
| Status: | RESOLVED FIXED | QA Contact: | Xorg Project Team <xorg-team> | ||||||
| Severity: | normal | ||||||||
| Priority: | medium | CC: | bugs.freedesktop | ||||||
| Version: | 7.5 (2009.10) | ||||||||
| Hardware: | Other | ||||||||
| OS: | All | ||||||||
| Whiteboard: | |||||||||
| i915 platform: | i915 features: | ||||||||
| Attachments: |
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Created attachment 35404 [details]
xorg log
It's a RENDER Composite operation software fallback. Rebuilding the radeon driver with the #define RADEON_TRACE_FALL 0 line in radeon_exa.c changed to 1 might give some information in the log file about why the fallback is occurring, but there will probably be a lot of debugging output so please try to isolate the parts corresponding to the problem. Those three lines are repeated over and over again in the log file: R300CheckComposite: Component alpha not supported with source alpha and source value blending. R300CheckCompositeTexture: REPEAT_NONE unsupported for transformed xRGB source R300CheckCompositeTexture: Unsupported picture format 0x1011000 The first line appears also when I don't use Impress. But the other two seem to appear only when I use Impress. (In reply to comment #3) > R300CheckCompositeTexture: REPEAT_NONE unsupported for transformed xRGB source This is most likely the relevant one for images, assuming there's scaling or other transformations involved. Unfortunately, the RENDER extension specifies relatively unusual semantics for RepeatNone pictures with no alpha channel, which can make it tricky to accelerate transformed Composite operations using them. If Impress just needs scaling, it would probably be better served with RepeatPad instead of RepeatNone. I have filed a bug at openoffice.org: http://www.openoffice.org/issues/show_bug.cgi?id=111399 There's no speed problem when using gallium + xorg state tracker. Seems to have been fixed in the meantime. |
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Created attachment 35403 [details] oprofile output When I start an Impress presentation it takes a lot of time to load slides which include images. I've attached an oprofile output which shows the problem. kernel: 2.6.33.3 xorg-server: 1.7.6 xf86-video-ati: git b2ecd1bb507ed4e0d9ba6ebd498c51da2e8136fa mesa: git a12614362a79d676eeb1c3030ed52057bcb8f4f8 pixman: 0.18