[Intel-gfx] [PATCH 1/4] drm: Add P010, P012, P016 format definitions and fourcc

[Alexandru-Cosmin Gheorghe]

On Wed, Oct 03, 2018 at 02:31:08PM +0300, Juha-Pekka Heikkila wrote:
> Hi Alex,
> 
> For my patches there seems limited interest to get them merged before IGT
> support these modes..I'm not holding my breath for this.

I'm interested if that counts.

I asked the same question on the DRM_FORMAT_XYUV thread, do we need to
wait for userspace to get new fourcc merged.

> 
> https://lists.freedesktop.org/archives/intel-gfx/2018-September/174877.html
> 
> /Juha-Pekka
> 
> On 02.10.2018 18:00, Alexandru-Cosmin Gheorghe wrote:
> >Hi,
> >
> >How is this going on, anything holding it back from getting merged ?
> >I'm interested in adding/using P010, [1]
> >
> >Thank you,
> >Alex Gheorghe
> >
> >[1] https://lists.freedesktop.org/archives/dri-devel/2018-August/186963.html
> >
> >On Thu, Aug 30, 2018 at 03:41:11PM +0300, Juha-Pekka Heikkila wrote:
> >>Add P010 definition, semi-planar yuv format where each component
> >>is 16 bits 10 msb containing color value. First come Y plane [10:6]
> >>followed by 2x2 subsampled Cr:Cb plane [10:6:10:6]
> >>
> >>Add P012 definition, semi-planar yuv format where each component
> >>is 16 bits 12 msb containing color value. First come Y plane [12:4]
> >>followed by 2x2 subsampled Cr:Cb plane [12:4:12:4]
> >>
> >>Add P016 definition, semi-planar yuv format where each component
> >>is 16 bits. First come Y plane followed by 2x2 subsampled Cr:Cb
> >>plane [16:16]
> >>
> >>Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila at gmail.com>
> >>---
> >>  drivers/gpu/drm/drm_fourcc.c  |  3 +++
> >>  include/uapi/drm/drm_fourcc.h | 10 ++++++++++
> >>  2 files changed, 13 insertions(+)
> >>
> >>diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
> >>index 35c1e27..32e07a2 100644
> >>--- a/drivers/gpu/drm/drm_fourcc.c
> >>+++ b/drivers/gpu/drm/drm_fourcc.c
> >>@@ -173,6 +173,9 @@ const struct drm_format_info *__drm_format_info(u32 format)
> >>  		{ .format = DRM_FORMAT_UYVY,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >>  		{ .format = DRM_FORMAT_VYUY,		.depth = 0,  .num_planes = 1, .cpp = { 2, 0, 0 }, .hsub = 2, .vsub = 1, .is_yuv = true },
> >>  		{ .format = DRM_FORMAT_AYUV,		.depth = 0,  .num_planes = 1, .cpp = { 4, 0, 0 }, .hsub = 1, .vsub = 1, .has_alpha = true, .is_yuv = true },
> >>+		{ .format = DRM_FORMAT_P010,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
> >>+		{ .format = DRM_FORMAT_P012,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
> >>+		{ .format = DRM_FORMAT_P016,		.depth = 0,  .num_planes = 2, .cpp = { 2, 4, 0 }, .hsub = 2, .vsub = 2, .is_yuv = true  },
> >>  	};
> >>  	unsigned int i;
> >>diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
> >>index 2ed46e9..daaabb1 100644
> >>--- a/include/uapi/drm/drm_fourcc.h
> >>+++ b/include/uapi/drm/drm_fourcc.h
> >>@@ -178,6 +178,16 @@ extern "C" {
> >>  #define DRM_FORMAT_NV42		fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
> >>  /*
> >>+ * 2 plane YCbCr
> >>+ * index 0 = Y plane, [15:0] Y little endian where Pxxx indicate
> >>+ * component xxx msb Y [xxx:16-xxx]
> >>+ * index 1 = Cr:Cb plane, [31:0] Cr:Cb little endian [xxx:16-xxx:xxx:16-xxx]
> >>+ */
> >>+#define DRM_FORMAT_P010		fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cr:Cb plane, 10 bit per channel */
> >>+#define DRM_FORMAT_P012		fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cr:Cb plane, 12 bit per channel */
> >>+#define DRM_FORMAT_P016		fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane, 16 bit per channel */
> >>+
> >>+/*
> >>   * 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 at lists.freedesktop.org
> >>https://lists.freedesktop.org/mailman/listinfo/dri-devel
> >

-- 
Cheers,
Alex G