linux-kernel - [PATCH v10 1/2] drm/fourcc: Add new P010, P016 video format

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Date:   Thu, 10 Jan 2019 03:57:09 +0800
From:   Randy Li <ayaka@...lik.info>
To:     dri-devel@...ts.freedesktop.org
Cc:     mchehab+samsung@...nel.org, mikhail.v.gavrilov@...il.com,
        laurent.pinchart@...asonboard.com, linux-media@...r.kernel.org,
        sakari.ailus@....fi, daniel@...ishbar.org, mchehab@...nel.org,
        linux-kernel@...r.kernel.org, maarten.lankhorst@...ux.intel.com,
        maxime.ripard@...tlin.com, sean@...rly.run, airlied@...ux.ie,
        daniel@...ll.ch, Randy Li <ayaka@...lik.info>,
        Ville Syrjälä 
        <ville.syrjala@...ux.intel.com>,
        Clint Taylor <clinton.a.taylor@...el.com>
Subject: [PATCH v10 1/2] drm/fourcc: Add new P010, P016 video format

P010 is a planar 4:2:0 YUV with interleaved UV plane, 10 bits per
channel video format.

P012 is a planar 4:2:0 YUV 12 bits per channel

P016 is a planar 4:2:0 YUV with interleaved UV plane, 16 bits per
channel video format.

V3: Added P012 and fixed cpp for P010.
V4: format definition refined per review.
V5: Format comment block for each new pixel format.
V6: reversed Cb/Cr order in comments.
v7: reversed Cb/Cr order in comments of header files, remove
the wrong part of commit message.
V8: reversed V7 changes except commit message and rebased.
v9: used the new properties to describe those format and
rebased.

Cc: Daniel Stone <daniel@...ishbar.org>
Cc: Ville Syrjälä <ville.syrjala@...ux.intel.com>

Signed-off-by: Randy Li <ayaka@...lik.info>
Signed-off-by: Clint Taylor <clinton.a.taylor@...el.com>
---
 drivers/gpu/drm/drm_fourcc.c  |  9 +++++++++
 include/uapi/drm/drm_fourcc.h | 21 +++++++++++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/drivers/gpu/drm/drm_fourcc.c b/drivers/gpu/drm/drm_fourcc.c
index d90ee03a84c6..ba7e19d4336c 100644
--- a/drivers/gpu/drm/drm_fourcc.c
+++ b/drivers/gpu/drm/drm_fourcc.c
@@ -238,6 +238,15 @@ const struct drm_format_info *__drm_format_info(u32 format)
 		{ .format = DRM_FORMAT_X0L2,		.depth = 0,  .num_planes = 1,
 		  .char_per_block = { 8, 0, 0 }, .block_w = { 2, 0, 0 }, .block_h = { 2, 0, 0 },
 		  .hsub = 2, .vsub = 2, .is_yuv = true },
+		{ .format = DRM_FORMAT_P010,            .depth = 0,  .num_planes = 2,
+		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
+		  .hsub = 2, .vsub = 2, .is_yuv = true},
+		{ .format = DRM_FORMAT_P012,		.depth = 0,  .num_planes = 2,
+		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 0 },
+		   .hsub = 2, .vsub = 2, .is_yuv = true},
+		{ .format = DRM_FORMAT_P016,		.depth = 0,  .num_planes = 2,
+		  .char_per_block = { 2, 4, 0 }, .block_w = { 1, 0, 0 }, .block_h = { 1, 0, 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 0b44260a5ee9..8dd1328bc8d6 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -195,6 +195,27 @@ extern "C" {
 #define DRM_FORMAT_NV24		fourcc_code('N', 'V', '2', '4') /* non-subsampled Cr:Cb plane */
 #define DRM_FORMAT_NV42		fourcc_code('N', 'V', '4', '2') /* non-subsampled Cb:Cr plane */
 
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [10:6] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [10:6:10:6] little endian
+ */
+#define DRM_FORMAT_P010		fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cr:Cb plane 10 bits per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y:x [12:4] little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:x:Cb:x [12:4:12:4] little endian
+ */
+#define DRM_FORMAT_P012		fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cr:Cb plane 12 bits per channel */
+
+/*
+ * 2 plane YCbCr MSB aligned
+ * index 0 = Y plane, [15:0] Y little endian
+ * index 1 = Cr:Cb plane, [31:0] Cr:Cb [16:16] little endian
+ */
+#define DRM_FORMAT_P016		fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cr:Cb plane 16 bits per channel */
+
 /*
  * 3 plane YCbCr
  * index 0: Y plane, [7:0] Y
-- 
2.20.1