Re: [PATCH 1/3] drm: Add some new format DRM_FORMAT_NVXX_10

["sandy.huang" <hjc@xxxxxxxxxxxxxx>]

在 2019/9/25 下午7:20, Daniel Vetter 写道:
> On Wed, Sep 25, 2019 at 10:07 AM Sandy Huang <hjc@xxxxxxxxxxxxxx> wrote:
> > These new format is supported by some rockchip socs:
> >
> > DRM_FORMAT_NV12_10/DRM_FORMAT_NV21_10
> > DRM_FORMAT_NV16_10/DRM_FORMAT_NV61_10
> > DRM_FORMAT_NV24_10/DRM_FORMAT_NV42_10
> >
> > Signed-off-by: Sandy Huang <hjc@xxxxxxxxxxxxxx>
> Again, please use the block formats to describe these, plus proper
> comments as Maarten also asked for.
> -Daniel

Hi Daniel and Maarten,

    The new v2 patches have update to block formats, please help to 
review, thanks.

> > ---
> >   drivers/gpu/drm/drm_fourcc.c  | 18 ++++++++++++++++++
> >   include/uapi/drm/drm_fourcc.h | 14 ++++++++++++++
> >   2 files changed, 32 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> > index c630064..f25fa81 100644
> > --- a/drivers/gpu/drm/drm_fourcc.c
> > +++ b/drivers/gpu/drm/drm_fourcc.c
> > @@ -274,6 +274,24 @@ const struct drm_format_info *__drm_format_info(u32 format)
> >                  { .format = DRM_FORMAT_YUV420_10BIT,    .depth = 0,
> >                    .num_planes = 1, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
> >                    .is_yuv = true },
> > +               { .format = DRM_FORMAT_NV12_10,         .depth = 0,
> > +                 .num_planes = 2, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
> > +                 .is_yuv = true },
> > +               { .format = DRM_FORMAT_NV21_10,         .depth = 0,
> > +                 .num_planes = 2, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 2,
> > +                 .is_yuv = true },
> > +               { .format = DRM_FORMAT_NV16_10,         .depth = 0,
> > +                 .num_planes = 2, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 1,
> > +                 .is_yuv = true },
> > +               { .format = DRM_FORMAT_NV61_10,         .depth = 0,
> > +                 .num_planes = 2, .cpp = { 0, 0, 0 }, .hsub = 2, .vsub = 1,
> > +                 .is_yuv = true },
> > +               { .format = DRM_FORMAT_NV24_10,         .depth = 0,
> > +                 .num_planes = 2, .cpp = { 0, 0, 0 }, .hsub = 1, .vsub = 1,
> > +                 .is_yuv = true },
> > +               { .format = DRM_FORMAT_NV42_10,         .depth = 0,
> > +                 .num_planes = 2, .cpp = { 0, 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 3feeaa3..0479f47 100644
> > --- a/include/uapi/drm/drm_fourcc.h
> > +++ b/include/uapi/drm/drm_fourcc.h
> > @@ -238,6 +238,20 @@ extern "C" {
> >   #define DRM_FORMAT_NV42                fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
> >
> >   /*
> > + * 2 plane YCbCr 10bit
> > + * index 0 = Y plane, [9:0] Y
> > + * index 1 = Cr:Cb plane, [19:0]
> > + * or
> > + * index 1 = Cb:Cr plane, [19:0]
> > + */
> > +#define DRM_FORMAT_NV12_10     fourcc_code('N', 'A', '1', '2') /* 2x2 subsampled Cr:Cb plane */
> > +#define DRM_FORMAT_NV21_10     fourcc_code('N', 'A', '2', '1') /* 2x2 subsampled Cb:Cr plane */
> > +#define DRM_FORMAT_NV16_10     fourcc_code('N', 'A', '1', '6') /* 2x1 subsampled Cr:Cb plane */
> > +#define DRM_FORMAT_NV61_10     fourcc_code('N', 'A', '6', '1') /* 2x1 subsampled Cb:Cr plane */
> > +#define DRM_FORMAT_NV24_10     fourcc_code('N', 'A', '2', '4') /* non-subsampled Cr:Cb plane */
> > +#define DRM_FORMAT_NV42_10     fourcc_code('N', 'A', '4', '2') /* non-subsampled Cb:Cr plane */
> > +
> > +/*
> >    * 2 plane YCbCr MSB aligned
> >    * index 0 = Y plane, [15:0] Y:x [10:6] little endian
> >    * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
> > --
> > 2.7.4


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