linux-kernel - Re: [PATCH v6 1/3] drm_fourcc: Add new P010, P016 video format

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Message-ID: <20170306183434.GV31595@intel.com>
Date:   Mon, 6 Mar 2017 20:34:34 +0200
From:   Ville Syrjälä <ville.syrjala@...ux.intel.com>
To:     Ayaka <ayaka@...lik.info>
Cc:     dri-devel@...ts.freedesktop.org, clinton.a.taylor@...el.com,
        daniel@...ishbar.org, linux-media@...r.kernel.org,
        mchehab@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 1/3] drm_fourcc: Add new P010, P016 video format

On Tue, Mar 07, 2017 at 01:58:23AM +0800, Ayaka wrote:
> 
> 
> 從我的 iPad 傳送
> 
> > Ville Syrjälä <ville.syrjala@...ux.intel.com> 於 2017年3月6日 下午9:06 寫道：
> > 
> >> On Sun, Mar 05, 2017 at 06:00:31PM +0800, Randy Li wrote:
> >> P010 is a planar 4:2:0 YUV with interleaved UV plane, 10 bits
> >> per channel video format.
> >> 
> >> P016 is a planar 4:2:0 YUV with interleaved UV plane, 16 bits
> >> per channel video format.
> >> 
> >> V3: Added P012 and fixed cpp for P010
> >> V4: format definition refined per review
> >> V5: Format comment block for each new pixel format
> >> V6: reversed Cb/Cr order in comments
> >> v7: reversed Cb/Cr order in comments of header files, remove
> >> the wrong part of commit message.
> > 
> > What? Why? You just undid what Clint did in v6.
> He missed a file also keeping the wrong description of rockchip.

I don't follow. Who missed what exactly?

> > 
> >> 
> >> Cc: Daniel Stone <daniel@...ishbar.org>
> >> Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>
> >> 
> >> Signed-off-by: Randy Li <ayaka@...lik.info>
> >> Signed-off-by: Clint Taylor <clinton.a.taylor@...el.com>
> >> ---
> >> drivers/gpu/drm/drm_fourcc.c  |  3 +++
> >> include/uapi/drm/drm_fourcc.h | 21 +++++++++++++++++++++
> >> 2 files changed, 24 insertions(+)
> >> 
> >> diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> >> index 90d2cc8..3e0fd58 100644
> >> --- a/drivers/gpu/drm/drm_fourcc.c
> >> +++ b/drivers/gpu/drm/drm_fourcc.c
> >> @@ -165,6 +165,9 @@ const struct drm_format_info *__drm_format_info(u32 format)
> >>        { .format = DRM_FORMAT_UYVY,        .depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1 },
> >>        { .format = DRM_FORMAT_VYUY,        .depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1 },
> >>        { .format = DRM_FORMAT_AYUV,        .depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1 },
> >> +        { .format = DRM_FORMAT_P010,        .depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2 },
> >> +        { .format = DRM_FORMAT_P012,        .depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2 },
> >> +        { .format = DRM_FORMAT_P016,        .depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2 },
> >>    };
> >> 
> >>    unsigned int i;
> >> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> >> index ef20abb..306f979 100644
> >> --- a/include/uapi/drm/drm_fourcc.h
> >> +++ b/include/uapi/drm/drm_fourcc.h
> >> @@ -128,6 +128,27 @@ extern "C" {
> >> #define DRM_FORMAT_NV42        fourcc_code('N', 'V', '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 = Cb:Cr plane, [31:0] Cb:x:Cr:x [10:6:10:6] little endian
> >> + */
> >> +#define DRM_FORMAT_P010        fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
> >> +
> >> +/*
> >> + * 2 plane YCbCr MSB aligned
> >> + * index 0 = Y plane, [15:0] Y:x [12:4] little endian
> >> + * index 1 = Cb:Cr plane, [31:0] Cb:x:Cr:x [12:4:12:4] little endian
> >> + */
> >> +#define DRM_FORMAT_P012        fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
> >> +
> >> +/*
> >> + * 2 plane YCbCr MSB aligned
> >> + * index 0 = Y plane, [15:0] Y little endian
> >> + * index 1 = Cb:Cr plane, [31:0] Cb:Cr [16:16] little endian
> >> + */
> >> +#define DRM_FORMAT_P016        fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
> >> +
> >> +/*
> >>  * 3 plane YCbCr
> >>  * index 0: Y plane, [7:0] Y
> >>  * index 1: Cb plane, [7:0] Cb
> >> -- 
> >> 2.7.4
> > 
> > -- 
> > Ville Syrjälä
> > Intel OTC

-- 
Ville Syrjälä
Intel OTC