On Tue, Apr 09, 2019 at 02:14:49PM +0000, Jim Zhang wrote:
> Once I pre-configure the colorkey, am I able to enable and disable it? If 
> colorkey can be enabled/disabled after that might meet my requirement

Not atomically with other updates.

> 
> Thanks,
> 
> Jim
> 
> 
> Caterpillar: Confidential Green
> 
> -----Original Message-----
> From: Ville Syrjälä <ville.syrj...@linux.intel.com> 
> Sent: Tuesday, April 9, 2019 8:57 AM
> To: Jim Zhang <zhang_...@cat.com>
> Cc: intel-gfx@lists.freedesktop.org; dri-de...@lists.freedesktop.org
> Subject: Re: [Intel-gfx] colorkey support for intel i915 gpu driver
> 
> On Tue, Apr 09, 2019 at 04:46:24PM +0300, Ville Syrjälä wrote:
> > On Tue, Apr 09, 2019 at 01:29:41PM +0000, Jim Zhang wrote:
> > > Villie:
> > > 
> > > What is Intel's plan for the colorkey patch?   Does Intel have any plan 
> > > to review and release?
> > 
> > There is no real plan at this time. But if you have a use case for it 
> > I can try to harass people until someone reviews it :)
> > 
> > > If I go with custom ioctl, and my custom ioctl will only used in Baytrail 
> > > product, could it be atomic for Baytrail only?
> > 
> > No. We would need to define a new api for it.
> 
> I should clarify that you can pre-configure the colorkey before turning on 
> the sprite plane(s). So unless you really need to change the colorkey while 
> the sprite plane(s) are already enabled you may not even need an atomic api 
> for this.
> 
> > 
> > > 
> > > Thanks,
> > > 
> > > Jim
> > > 
> > > 
> > > Caterpillar: Confidential Green
> > > 
> > > -----Original Message-----
> > > From: Ville Syrjälä <ville.syrj...@linux.intel.com>
> > > Sent: Tuesday, April 2, 2019 7:32 AM
> > > To: Jim Zhang <zhang_...@cat.com>
> > > Cc: dri-de...@lists.freedesktop.org; intel-gfx@lists.freedesktop.org
> > > Subject: Re: colorkey support for intel i915 gpu driver
> > > 
> > > On Mon, Apr 01, 2019 at 08:18:13PM +0000, Jim Zhang wrote:
> > > > Hi Sir/Madam:
> > > > 
> > > > I am using the open source Baytrail gpu drm driver.
> > > > 
> > > > Linux kernel version 3.10.61:
> > > > Libdrm package:  2.4.97
> > > > 
> > > > When calling function
> > > > properties = drmModeObjectGetProperties(drmfd, plane_id, 
> > > > DRM_MODE_OBJECT_PLANE);  it only returns only one property:
> > > > 
> > > > This property is:
> > > >   property->name = "rotation", property->prop_id =4 It looks like 
> > > > that the Baytrail gpu drm driver does not support colorkey.
> > > 
> > > There are two problems currently:
> > > - Destination colorkey is not implemented on BYT/CHV. I have
> > >   patches for it but they have not been reviewed by anyone:
> > >   
> > > https://urldefense.proofpoint.com/v2/url?u=https-3A__patchwork.freed
> > > esktop.org_series_43902_&d=DwIDAw&c=p0oa49nxxGtbbM2qgM-GB4r4m9OlGg-s
> > > Ep8sXylY2aQ&r=kszNssoSc2KF2GeTYwo7za6kdvLoemctuEIYtXbA4PI&m=ztfgUCy9
> > > ePzHa0zagoDF75AfJJVbElfjXUWmbpBRM58&s=aXK10RLMgC4i_nBRGS6Jzzbv3pXo50
> > > PX79myDO5gEYA&e=
> > > - Colorkey can only be set via a custom i915 specific ioctl
> > >   (DRM_I915_SET_SPRITE_COLORKEY). There have been a few attempts at
> > >   a generic property based API that never really went anywhere. It's
> > >   a rather difficult problem making this generic as each hardware has
> > >   its own peculiar way of specifying colorkeying. The main problem
> > >   with the custom ioctl is that it's not atomic with other screen
> > >   updates.
> > > 
> > > So, what kind of use case do you have in mind?
> > > 
> > > --
> > > Ville Syrjälä
> > > Intel
> > 
> > --
> > Ville Syrjälä
> > Intel
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx@lists.freedesktop.org
> > https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.freedesktop
> > .org_mailman_listinfo_intel-2Dgfx&d=DwIDAw&c=p0oa49nxxGtbbM2qgM-GB4r4m
> > 9OlGg-sEp8sXylY2aQ&r=kszNssoSc2KF2GeTYwo7za6kdvLoemctuEIYtXbA4PI&m=Oyn
> > sqGRzmnTMX2pxog1nBd_nnCa413-CM6loSIjLXXo&s=fjXVFmFDB_LEKe_W5PHzmzkzNPQ
> > cu3xTPSCqb5Dnpwk&e=
> 
> --
> Ville Syrjälä
> Intel

-- 
Ville Syrjälä
Intel
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