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0171157d45
The patches were generated from the RPi repo with the following command: git format-patch v6.6.44..rpi-6.6.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
102 lines
3.9 KiB
Diff
102 lines
3.9 KiB
Diff
From 814c088cb7183f79ba68c8f9459505e2ac4dde3a Mon Sep 17 00:00:00 2001
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From: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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Date: Fri, 26 Jan 2024 15:03:18 +0100
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Subject: [PATCH 1148/1215] media: uapi: Add a pixel format for BGR48 and RGB48
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Add BGR48 and RGB48 16-bit per component image formats.
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Signed-off-by: Jacopo Mondi <jacopo.mondi@ideasonboard.com>
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Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
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Reviewed-by: Naushir Patuck <naush@raspberrypi.com>
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---
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.../userspace-api/media/v4l/pixfmt-rgb.rst | 54 +++++++++++++++++++
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drivers/media/v4l2-core/v4l2-common.c | 2 +
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include/uapi/linux/videodev2.h | 2 +
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3 files changed, 58 insertions(+)
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--- a/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
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+++ b/Documentation/userspace-api/media/v4l/pixfmt-rgb.rst
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@@ -996,6 +996,60 @@ arranged in little endian order.
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\normalsize
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+16 Bits Per Component
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+=====================
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+
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+These formats store an RGB triplet in six bytes, with 16 bits per component
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+stored in memory in little endian byte order. They are named based on the order
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+of the RGB components as stored in memory. For instance, RGB48 stores R\
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+:sub:`7:0` and R\ :sub:`15:8` in bytes 0 and 1 respectively. This differs from
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+the DRM format nomenclature that instead uses the order of components as seen in
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+the 48-bits little endian word.
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+
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+.. raw:: latex
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+
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+ \small
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+
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+.. flat-table:: RGB Formats With 16 Bits Per Component
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+ :header-rows: 1
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+
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+ * - Identifier
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+ - Code
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+ - Byte 0
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+ - Byte 1
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+ - Byte 2
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+ - Byte 3
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+ - Byte 4
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+ - Byte 5
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+
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+ * .. _V4L2-PIX-FMT-BGR48:
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+
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+ - ``V4L2_PIX_FMT_BGR48``
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+ - 'BGR6'
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+
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+ - B\ :sub:`7-0`
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+ - B\ :sub:`15-8`
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+ - G\ :sub:`7-0`
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+ - G\ :sub:`15-8`
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+ - R\ :sub:`7-0`
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+ - R\ :sub:`15-8`
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+
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+ * .. _V4L2-PIX-FMT-RGB48:
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+
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+ - ``V4L2_PIX_FMT_RGB48``
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+ - 'RGB6'
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+
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+ - R\ :sub:`7-0`
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+ - R\ :sub:`15-8`
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+ - G\ :sub:`7-0`
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+ - G\ :sub:`15-8`
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+ - B\ :sub:`7-0`
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+ - B\ :sub:`15-8`
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+
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+.. raw:: latex
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+
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+ \normalsize
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+
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Deprecated RGB Formats
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======================
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--- a/drivers/media/v4l2-core/v4l2-common.c
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+++ b/drivers/media/v4l2-core/v4l2-common.c
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@@ -253,6 +253,8 @@ const struct v4l2_format_info *v4l2_form
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{ .format = V4L2_PIX_FMT_RGB555, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 2, 0, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
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{ .format = V4L2_PIX_FMT_BGR666, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 4, 0, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
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{ .format = V4L2_PIX_FMT_BGR48_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
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+ { .format = V4L2_PIX_FMT_BGR48, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
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+ { .format = V4L2_PIX_FMT_RGB48, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 6, 0, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
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{ .format = V4L2_PIX_FMT_ABGR64_12, .pixel_enc = V4L2_PIXEL_ENC_RGB, .mem_planes = 1, .comp_planes = 1, .bpp = { 8, 0, 0, 0 }, .bpp_div = { 1, 1, 1, 1 }, .hdiv = 1, .vdiv = 1 },
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/* YUV packed formats */
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--- a/include/uapi/linux/videodev2.h
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+++ b/include/uapi/linux/videodev2.h
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@@ -587,6 +587,8 @@ struct v4l2_pix_format {
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/* RGB formats (6 or 8 bytes per pixel) */
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#define V4L2_PIX_FMT_BGR48_12 v4l2_fourcc('B', '3', '1', '2') /* 48 BGR 12-bit per component */
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+#define V4L2_PIX_FMT_BGR48 v4l2_fourcc('B', 'G', 'R', '6') /* 48 BGR 16-bit per component */
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+#define V4L2_PIX_FMT_RGB48 v4l2_fourcc('R', 'G', 'B', '6') /* 48 RGB 16-bit per component */
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#define V4L2_PIX_FMT_ABGR64_12 v4l2_fourcc('B', '4', '1', '2') /* 64 BGRA 12-bit per component */
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/* RGB formats (6 bytes per pixel) */
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