Re: [PATCH v10 1/2] drm: Introduce new DRM_FORMAT_XYUV

["Lisovskiy, Stanislav" <stanislav.lisovskiy@intel.com>]

On Wed, 2018-10-03 at 08:07 +0000, Alexandru-Cosmin Gheorghe wrote:
> On Wed, Oct 03, 2018 at 06:39:00AM +0000, Lisovskiy, Stanislav wrote:
> > On Tue, 2018-10-02 at 15:28 +0000, Alexandru-Cosmin Gheorghe wrote:
> > > Hi,
> > > 
> > > On Tue, Oct 02, 2018 at 02:15:42PM +0300, Stanislav Lisovskiy
> > > wrote:
> > > > v5: This is YUV444 packed format same as AYUV, but without
> > > > alpha,
> > > >     as supported by i915.
> > > > 
> > > > v6: Removed unneeded initializer for new XYUV format.
> > > > 
> > > > v7: Added is_yuv field initialization according to latest
> > > >     drm_fourcc format structure initialization changes.
> > > > 
> > > > v8: Edited commit message to be more clear about skl+, renamed
> > > >     PLANE_CTL_FORMAT_AYUV to PLANE_CTL_FORMAT_XYUV as this
> > > > format
> > > >     doesn't support per-pixel alpha. Fixed minor code issues.
> > > > 
> > > > v9: Moved DRM format check to proper place in
> > > > intel_framebuffer_init.
> > > > 
> > > > Signed-off-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.c
> > > > om>
> > > 
> > > Reviewed-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@arm.co
> > > m>
> > > 
> > > I'm planning of sending a new version with my series[1], do you
> > > think
> > > this patch will get merged soon, or is there anything else that
> > > needs
> > > to be done.
> > > 
> > > [1] https://lists.freedesktop.org/archives/dri-devel/2018-
> > > August/186963.html
> > 
> > Hi,
> > 
> > I had to implement IGT test case and xf86-video-intel support for
> > this
> > new format(in order to check that it works with gstreamer as we
> > have
> > userspace requirement for this change), so currently I guess all
> > the
> > requirements are met. I might need to do some
> > minor changes in those patches though, once I get some feedback.
> 
> A bit offtopic do we need userspace for adding a new fourcc as well,
> I thought those are extempted from "must have userspace rule".

Well, at least in my case I was asked to do that. 
Interesting task though :) 
Currently I check with GStreamer, so that video works both in textured 
and sprite format.
BTW, I have changed DRM_FORMAT_XYUV to DRM_FORMAT_XYUV8888 so that it
is compliant with your change. As I understood we've agreed to have it
called that way instead of DRM_FORMAT_XYUV. Are you ok with that?

I will then send a new patch for IGT, xf86-video-intel and drm today.

> > 
> > > 
> > > > ---
> > > >  drivers/gpu/drm/drm_fourcc.c  | 1 +
> > > >  include/uapi/drm/drm_fourcc.h | 1 +
> > > >  2 files changed, 2 insertions(+)
> > > > 
> > > > diff --git a/drivers/gpu/drm/drm_fourcc.c
> > > > b/drivers/gpu/drm/drm_fourcc.c
> > > > index be1d6aaef651..60752d0be9d8 100644
> > > > --- a/drivers/gpu/drm/drm_fourcc.c
> > > > +++ b/drivers/gpu/drm/drm_fourcc.c
> > > > @@ -190,6 +190,7 @@ const struct drm_format_info
> > > > *__drm_format_info(u32 format)
> > > >  		{ .format = DRM_FORMAT_UYVY,		.d
> > > > epth
> > > > = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub =
> > > > 1,
> > > > .is_yuv = true },
> > > >  		{ .format = DRM_FORMAT_VYUY,		.d
> > > > epth
> > > > = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub =
> > > > 1,
> > > > .is_yuv = true },
> > > >  		{ .format = DRM_FORMAT_AYUV,		.d
> > > > epth
> > > > = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub =
> > > > 1,
> > > > .has_alpha = true, .is_yuv = true },
> > > > +		{ .format = DRM_FORMAT_XYUV,		.d
> > > > epth
> > > > = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub =
> > > > 1,
> > > > .is_yuv = true },
> > > >  	};
> > > >  
> > > >  	unsigned int i;
> > > > diff --git a/include/uapi/drm/drm_fourcc.h
> > > > b/include/uapi/drm/drm_fourcc.h
> > > > index 139632b87181..88d2e491f40c 100644
> > > > --- a/include/uapi/drm/drm_fourcc.h
> > > > +++ b/include/uapi/drm/drm_fourcc.h
> > > > @@ -151,6 +151,7 @@ extern "C" {
> > > >  #define DRM_FORMAT_VYUY		fourcc_code('V', 'Y',
> > > > 'U',
> > > > 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
> > > >  
> > > >  #define DRM_FORMAT_AYUV		fourcc_code('A', 'Y',
> > > > 'U',
> > > > 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
> > > > +#define DRM_FORMAT_XYUV		fourcc_code('X', 'Y',
> > > > 'U',
> > > > 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */
> > > >  
> > > >  /*
> > > >   * 2 plane RGB + A
> > > > -- 
> > > > 2.17.1
> > > > 
> > > > _______________________________________________
> > > > dri-devel mailing list
> > > > dri-devel@lists.freedesktop.org
> > > > https://lists.freedesktop.org/mailman/listinfo/dri-devel
> > > 
> > > 
> > 
> > -- 
> > Best Regards,
> > 
> > Lisovskiy Stanislav
> 
> 
-- 
Best Regards,

Lisovskiy Stanislav
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