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

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Message-Id: <AA8A1608-4875-481D-8313-D06C944F9922@soulik.info>
Date:   Mon, 27 Mar 2017 12:05:47 +0800
From:   Ayaka <ayaka@...lik.info>
To:     Ander Conselvan De Oliveira <conselvan2@...il.com>
Cc:     Ville Syrjälä <ville.syrjala@...ux.intel.com>,
        "Taylor, Clinton A" <clinton.a.taylor@...el.com>,
        linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
        mchehab@...nel.org, linux-media@...r.kernel.org
Subject: Re: [PATCH v6 1/3] drm_fourcc: Add new P010, P016 video format


從我的 iPad 傳送

> Ander Conselvan De Oliveira <conselvan2@...il.com> 於 2017年3月14日 下午9:53 寫道：
> 
>> On Tue, 2017-03-07 at 04:27 +0800, Ayaka wrote:
>> 
>> 從我的 iPad 傳送
>> 
>>>> Ville Syrjälä <ville.syrjala@...ux.intel.com> 於 2017年3月7日 上午2:34 寫道：
>>>> 
>>>> 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?
>> 
>> What he sent is v5, I increase the order number twice in the message, it confuse me as well. 
>> I think Clint forgot the include/uapi/drm/drm_fourcc.h .
> 
> Clint did send a v6, and that updates "include/uapi/drm/drm_fourcc.h":
> 
> https://patchwork.freedesktop.org/patch/141342/
Oh, yes but he still used Cr:Cb, but I think it should be Cb:Cr
since I think the V is after the U.
> 
> 
> Ander
> 
>>> 
>>> 
>>>>> 
>>>>>> 
>>>>>> 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
>> 
>> _______________________________________________
>> dri-devel mailing list
>> dri-devel@...ts.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/dri-devel

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