Re: [PATCH v6] drm: add fourcc codes for 16bit R and RG

From: Ben Widawsky
Date: Wed Jan 11 2017 - 10:52:01 EST


On 17-01-11 17:05:04, Ville SyrjÃlà wrote:
On Thu, Jan 05, 2017 at 02:45:37PM +0100, Christian KÃnig wrote:
Am 05.01.2017 um 12:37 schrieb Ville SyrjÃlÃ:
> On Wed, Jan 04, 2017 at 07:38:55PM +0100, Rainer Hochecker wrote:
>> From: Rainer Hochecker <fernetmenta@xxxxxxxxx>
>>
>> This adds fourcc codes for 16bit planes required for DRM buffer
>> export to mesa.
>>
>> Signed-off-by: Rainer Hochecker <fernetmenta@xxxxxxxxx>
> Reviewed-by: Ville SyrjÃlà <ville.syrjala@xxxxxxxxxxxxxxx>

Good to see some work landing on that part, patch is Acked-by: Christian
KÃnig <christian.koenig@xxxxxxx>.

Has the userspace side of this been reviewed already?

/me wonders if it's safe to push this...


I acked the mesa side, and Rainer sent a version 2 which also looked fine to me.
Let me bump that thread...


>
>> ---
>> include/uapi/drm/drm_fourcc.h | 7 +++++++
>> 1 file changed, 7 insertions(+)
>>
>> diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
>> index a5890bf..d230e58 100644
>> --- a/include/uapi/drm/drm_fourcc.h
>> +++ b/include/uapi/drm/drm_fourcc.h
>> @@ -41,10 +41,17 @@ extern "C" {
>> /* 8 bpp Red */
>> #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
>>
>> +/* 16 bpp Red */
>> +#define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */
>> +
>> /* 16 bpp RG */
>> #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
>> #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
>>
>> +/* 32 bpp RG */
>> +#define DRM_FORMAT_RG1616 fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */
>> +#define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */
>> +
>> /* 8 bpp RGB */
>> #define DRM_FORMAT_RGB332 fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
>> #define DRM_FORMAT_BGR233 fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
>> --
>> 2.9.3


--
Ville SyrjÃlÃ
Intel OTC