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Date: Thu, 9 Nov 2017 17:33:58 +0800 From: Tina Zhang <tina.zhang@...el.com> To: alex.williamson@...hat.com, kraxel@...hat.com, chris@...is-wilson.co.uk, joonas.lahtinen@...ux.intel.com, zhenyuw@...ux.intel.com, zhiyuan.lv@...el.com, zhi.a.wang@...el.com, kevin.tian@...el.com, daniel@...ll.ch, kwankhede@...dia.com, hang.yuan@...el.com Cc: Tina Zhang <tina.zhang@...el.com>, intel-gfx@...ts.freedesktop.org, intel-gvt-dev@...ts.freedesktop.org, linux-kernel@...r.kernel.org, Ville Syrjälä <ville.syrjala@...ux.intel.com>, Dave Airlie <airlied@...hat.com>, Daniel Vetter <daniel.vetter@...ll.ch> Subject: [PATCH v17 2/6] drm: Introduce RGB 64-bit 16:16:16:16 float format The RGB 64-bit 16:16:16:16 float pixel format is needed by some Apps in windows. The float format in each component is 1:5:10 MSb-sign:exponent: fraction. This patch is to introduce the format to drm, so that the windows guest's framebuffer in this kind of format can be recognized and used by linux host. v14: - add some details about the float pixel format. (Daniel) - add F suffix to the defined name. (Daniel) v12: - send to dri-devel at lists.freedesktop.org. (Ville) v9: - separated from framebuffer decoder patch. (Zhenyu) (Xiaoguang) Signed-off-by: Tina Zhang <tina.zhang@...el.com> Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com> Cc: Dave Airlie <airlied@...hat.com> Cc: Daniel Vetter <daniel.vetter@...ll.ch> --- include/uapi/drm/drm_fourcc.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index 3ad838d..391d2e6 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -113,6 +113,10 @@ extern "C" { #define DRM_FORMAT_AYUV fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */ +/* 64 bpp RGB 16:16:16:16 Floating Point */ +#define DRM_FORMAT_XRGB161616F fourcc_code('X', 'R', '3', 'F') /* [63:0] x:R:G:B 16:16:16:16 little endian */ +#define DRM_FORMAT_XBGR161616F fourcc_code('X', 'B', '3', 'F') /* [63:0] x:B:G:R 16:16:16:16 little endian */ + /* * 2 plane RGB + A * index 0 = RGB plane, same format as the corresponding non _A8 format has -- 2.7.4
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