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Keep rotation wrappers in place while transforms are in use

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LeaveVT/EnterVT cycles will free/realloc shadow frame buffers. Because of
this, the presense/absence of that data is insufficient to know whether
the screen function wrappers are necessary. Instead, the 'transform_in_use'
flag should be used.

This patch also adds 'xf86RotateFreeShadow' for drivers to use at LeaveVT
time to free the rotation data; it will be reallocated on EnterVT.
This commit is contained in:
Hong Liu 2008-04-29 09:00:11 -07:00 • committed by Keith Packard
commit f65a1a62f9
3 changed files with 26 additions and 2 deletions
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6
hw/xfree86/modes/xf86Crtc.h
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@ -664,6 +664,12 @@ xf86CrtcSetMode (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation,
Bool
xf86CrtcRotate (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation);
/*
* free shadow memory allocated for all crtcs
*/
void
xf86RotateFreeShadow(ScrnInfoPtr pScrn);
/*
* Clean up rotation during CloseScreen
*/