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From: Michael Tretter <m.tretter@pengutronix.de>
To: Jacob Chen <jacob-chen@iotwrt.com>,
	 Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>,
	 Mauro Carvalho Chehab <mchehab@kernel.org>,
	 Heiko Stuebner <heiko@sntech.de>,
	Shengyu Qu <wiagn233@outlook.com>,
	 Nicolas Frattaroli <frattaroli.nicolas@gmail.com>,
	 Robin Murphy <robin.murphy@arm.com>,
	 Diederik de Haas <didi.debian@cknow.org>
Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org,
	 linux-arm-kernel@lists.infradead.org, kernel@pengutronix.de,
	 Michael Tretter <m.tretter@pengutronix.de>
Subject: [PATCH 01/13] media: rockchip: rga: fix swizzling for RGB formats
Date: Thu, 14 Sep 2023 14:40:33 +0200	[thread overview]
Message-ID: <20230914-rockchip-rga-multiplanar-v1-1-abfd77260ae3@pengutronix.de> (raw)
In-Reply-To: <20230914-rockchip-rga-multiplanar-v1-0-abfd77260ae3@pengutronix.de>

When using 32 bit RGB formats, the RGA on the rk3568 produces wrong
colors as the wrong color channels are read or written.  The reason is
that the format description for the channel swizzeling is wrong and the
wrong bits are configured. For example, when converting ARGB32 to NV12,
the alpha channel is used as blue channel.. This doesn't happen if the
color format is the same on both sides.

Fix the color_swap settings of the formats to correctly handle 32 bit
RGB formats.

For RGA_COLOR_FMT_XBGR8888, the RGA_COLOR_ALPHA_SWAP bit doesn't have an
effect. Thus, it isn't possible to handle the V4L2_PIX_FMT_XRGB32. Thus,
it is removed from the list of supported formats.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
---
 drivers/media/platform/rockchip/rga/rga.c | 15 +++------------
 1 file changed, 3 insertions(+), 12 deletions(-)

diff --git a/drivers/media/platform/rockchip/rga/rga.c b/drivers/media/platform/rockchip/rga/rga.c
index f1c532a5802a..25f5b5eebf13 100644
--- a/drivers/media/platform/rockchip/rga/rga.c
+++ b/drivers/media/platform/rockchip/rga/rga.c
@@ -184,25 +184,16 @@ static int rga_setup_ctrls(struct rga_ctx *ctx)
 static struct rga_fmt formats[] = {
 	{
 		.fourcc = V4L2_PIX_FMT_ARGB32,
-		.color_swap = RGA_COLOR_RB_SWAP,
+		.color_swap = RGA_COLOR_ALPHA_SWAP,
 		.hw_format = RGA_COLOR_FMT_ABGR8888,
 		.depth = 32,
 		.uv_factor = 1,
 		.y_div = 1,
 		.x_div = 1,
 	},
-	{
-		.fourcc = V4L2_PIX_FMT_XRGB32,
-		.color_swap = RGA_COLOR_RB_SWAP,
-		.hw_format = RGA_COLOR_FMT_XBGR8888,
-		.depth = 32,
-		.uv_factor = 1,
-		.y_div = 1,
-		.x_div = 1,
-	},
 	{
 		.fourcc = V4L2_PIX_FMT_ABGR32,
-		.color_swap = RGA_COLOR_ALPHA_SWAP,
+		.color_swap = RGA_COLOR_RB_SWAP,
 		.hw_format = RGA_COLOR_FMT_ABGR8888,
 		.depth = 32,
 		.uv_factor = 1,
@@ -211,7 +202,7 @@ static struct rga_fmt formats[] = {
 	},
 	{
 		.fourcc = V4L2_PIX_FMT_XBGR32,
-		.color_swap = RGA_COLOR_ALPHA_SWAP,
+		.color_swap = RGA_COLOR_RB_SWAP,
 		.hw_format = RGA_COLOR_FMT_XBGR8888,
 		.depth = 32,
 		.uv_factor = 1,

-- 
2.39.2


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  reply	other threads:[~2023-09-14 12:42 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-09-14 12:40 [PATCH 00/13] media: rockchip: rga: add support for multi-planar formats Michael Tretter
2023-09-14 12:40 ` Michael Tretter [this message]
2023-09-14 12:40 ` [PATCH 02/13] media: rockchip: rga: extract helper to fill descriptors Michael Tretter
2023-09-14 15:06   ` Robin Murphy
2023-09-14 17:57     ` Michael Tretter
2023-09-14 20:33       ` Robin Murphy
2023-09-25  7:27         ` Hans Verkuil
2023-09-25  7:32   ` Hans Verkuil
2023-10-04 14:09     ` Michael Tretter
2023-09-14 12:40 ` [PATCH 03/13] media: rockchip: rga: allocate DMA descriptors per buffer Michael Tretter
2023-09-14 15:12   ` Robin Murphy
2023-09-14 12:40 ` [PATCH 04/13] media: rockchip: rga: split src and dst buffer setup Michael Tretter
2023-09-14 12:40 ` [PATCH 05/13] media: rockchip: rga: pre-calculate plane offsets Michael Tretter
2023-09-14 13:56   ` kernel test robot
2023-09-14 12:40 ` [PATCH 06/13] media: rockchip: rga: set dma mask to 32 bits Michael Tretter
2023-09-14 14:40   ` Robin Murphy
2023-09-14 12:40 ` [PATCH 07/13] media: rockchip: rga: use clamp() to clamp size to limits Michael Tretter
2023-09-14 12:40 ` [PATCH 08/13] media: rockchip: rga: use pixelformat to find format Michael Tretter
2023-09-14 12:40 ` [PATCH 09/13] media: rockchip: rga: add local variable for pix_format Michael Tretter
2023-09-14 12:40 ` [PATCH 10/13] media: rockchip: rga: use macros for testing buffer type Michael Tretter
2023-09-14 12:40 ` [PATCH 11/13] media: rockchip: rga: switch to multi-planar API Michael Tretter
2023-09-14 12:40 ` [PATCH 12/13] media: rockchip: rga: rework buffer handling for multi-planar formats Michael Tretter
2023-09-14 12:40 ` [PATCH 13/13] media: rockchip: rga: add NV12M support Michael Tretter
2023-09-25  7:45 ` [PATCH 00/13] media: rockchip: rga: add support for multi-planar formats Hans Verkuil
2023-10-04 14:08   ` Michael Tretter

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