Re: [PATCH v5] drm: add fourcc codes for 16bit R and RG

From: Ville Syrjälä
Date: Wed Jan 04 2017 - 13:29:41 EST


On Wed, Jan 04, 2017 at 07:24:09PM +0100, Rainer Hochecker wrote:
> From: Rainer Hochecker <fernetmenta@xxxxxxxxx>
>
> Thanks for bearing with me. My ml skills have greatly improved now :)
>
> v5 of patch:
>
> This adds fourcc codes for 16bit planes required for DRM buffer
> export to mesa.
>
> Signed-off-by: Rainer Hochecker <fernetmenta@xxxxxxxxx>
> ---
> 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..e7f6bcd 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 Syrjälä
Intel OTC