From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= Subject: Re: [PATCH 01/36] drm/fourcc: Add 2 plane YCbCr 10bit format support Date: Mon, 23 Sep 2019 15:53:15 +0300 Message-ID: <20190923125314.GJ1208@intel.com> References: <1569242365-182133-1-git-send-email-hjc@rock-chips.com> <1569242365-182133-2-git-send-email-hjc@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Return-path: Content-Disposition: inline In-Reply-To: <1569242365-182133-2-git-send-email-hjc@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: Sandy Huang Cc: dri-devel@lists.freedesktop.org, Maarten Lankhorst , Maxime Ripard , Sean Paul , David Airlie , Daniel Vetter , linux-kernel@vger.kernel.org List-Id: dri-devel@lists.freedesktop.org On Mon, Sep 23, 2019 at 08:38:50PM +0800, Sandy Huang wrote: > diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h > index 3feeaa3..5fe89e9 100644 > --- a/include/uapi/drm/drm_fourcc.h > +++ b/include/uapi/drm/drm_fourcc.h > @@ -266,6 +266,21 @@ extern "C" { > #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */ > > /* > + * 2 plane YCbCr 10bit > + * index 0 = Y plane, [9:0] Y > + * index 1 = Cr:Cb plane, [19:0] Cr:Cb little endian > + * or > + * index 1 = Cb:Cr plane, [19:0] Cb:Cr little endian What does "little endian" even mean for these? > + */ > + > +#define DRM_FORMAT_NV12_10 fourcc_code('N', 'A', '1', '2') /* 2x2 subsampled Cr:Cb plane */ > +#define DRM_FORMAT_NV21_10 fourcc_code('N', 'A', '2', '1') /* 2x2 subsampled Cb:Cr plane */ > +#define DRM_FORMAT_NV16_10 fourcc_code('N', 'A', '1', '6') /* 2x1 subsampled Cr:Cb plane */ > +#define DRM_FORMAT_NV61_10 fourcc_code('N', 'A', '6', '1') /* 2x1 subsampled Cb:Cr plane */ > +#define DRM_FORMAT_NV24_10 fourcc_code('N', 'A', '2', '4') /* non-subsampled Cr:Cb plane */ > +#define DRM_FORMAT_NV42_10 fourcc_code('N', 'A', '4', '2') /* non-subsampled Cb:Cr plane */ > + > +/* > * 3 plane YCbCr > * index 0: Y plane, [7:0] Y > * index 1: Cb plane, [7:0] Cb > -- > 2.7.4 > > > > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Ville Syrjälä Intel