On Tue, 15 Nov 2011 14:57:02 +0200 Ville Syrjälä <ville.syrj...@linux.intel.com> wrote: > I'm fine with fourccs as long as the defines are named and documented > in way that avoids guesswork. > > So what I'm thinking is something like this: > > DRM_FOURCC_RGB332 ... /* [7:0] R:G:B 3:3:2 */ > DRM_FOURCC_XRGB1555 ... /* [15:0] x:R:G:B 1:5:5:5, native endian */ > DRM_FOURCC_RGB565 ... /* [15:0] R:G:B 5:6:5, native endian */ > DRM_FOURCC_XRGB8888 ... /* [31:0] x:R:G:B 8:8:8:8, native endian */ > DRM_FOURCC_XRGB2101010 ... /* [31:0] x:R:G:B 2:10:10:10, native endian */ > > DRM_FOURCC_RGB888 ... /* [23:0] R:G:B 8:8:8, little endian */ > DRM_FOURCC_BGR888 ... /* [23:0] B:G:R 8:8:8, little endian */ > > DRM_FOURCC_YUYV ... /* [31:0] Cr:Y1:Cb:Y0 8:8:8:8, little endian */ > DRM_FOURCC_UYVY ... /* [31:0] Y1:Cr:Y0:Cb 8:8:8:8, little endian */ > DRM_FOURCC_YVYU ... /* [31:0] Cb:Y1:Cr:Y0 8:8:8:8, little endian */ > DRM_FOURCC_VYUY ... /* [31:0] Y1:Cb:Y0:Cr 8:8:8:8, little endian */ > > That leaves no room for guesswork.
Looks great. Want to send Dave an incremental patch? I'll apply the final version to libdrm for use by userland code. Thanks, -- Jesse Barnes, Intel Open Source Technology Center
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