From: Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
To: Kaaira Gupta <kgupta@es.iitr.ac.in>,
Helen Koike <helen.koike@collabora.com>,
Shuah Khan <skhan@linuxfoundation.org>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
kieran.bingham@ideasonboard.com,
dafna Hirschfeld <dafna3@gmail.com>
Subject: Re: [PATCH] vimc: debayer: Add support for ARGB format
Date: Fri, 29 May 2020 17:43:57 +0200 [thread overview]
Message-ID: <0ab57863-935d-3ab5-dfea-80a44c63ae18@collabora.com> (raw)
In-Reply-To: <20200528185717.GA20581@kaaira-HP-Pavilion-Notebook>
Hi,
Thanks for the patch
I don't know how real devices handle ARGB formats,
I wonder if it should be the part of the debayer.
On 28.05.20 20:57, Kaaira Gupta wrote:
> Running qcam for pixelformat 0x34324142 showed that vimc debayer does
> not support it. Hence, add the support for Alpha (255).
I would change the commit log to:
Add support for V4L2_PIX_FMT_RGB24 format in the debayer
and set the alpha channel to constant 255.
Thanks,
Dafna
>
> Signed-off-by: Kaaira Gupta <kgupta@es.iitr.ac.in>
> ---
> .../media/test-drivers/vimc/vimc-debayer.c | 27 ++++++++++++-------
> 1 file changed, 18 insertions(+), 9 deletions(-)
>
> diff --git a/drivers/media/test-drivers/vimc/vimc-debayer.c b/drivers/media/test-drivers/vimc/vimc-debayer.c
> index c3f6fef34f68..f34148717a40 100644
> --- a/drivers/media/test-drivers/vimc/vimc-debayer.c
> +++ b/drivers/media/test-drivers/vimc/vimc-debayer.c
> @@ -62,6 +62,7 @@ static const u32 vimc_deb_src_mbus_codes[] = {
> MEDIA_BUS_FMT_RGB888_1X7X4_SPWG,
> MEDIA_BUS_FMT_RGB888_1X7X4_JEIDA,
> MEDIA_BUS_FMT_RGB888_1X32_PADHI,
> + MEDIA_BUS_FMT_ARGB8888_1X32
> };
>
> static const struct vimc_deb_pix_map vimc_deb_pix_map_list[] = {
> @@ -322,15 +323,23 @@ static void vimc_deb_process_rgb_frame(struct vimc_deb_device *vdeb,
> unsigned int i, index;
>
> vpix = vimc_pix_map_by_code(vdeb->src_code);
> - index = VIMC_FRAME_INDEX(lin, col, vdeb->sink_fmt.width, 3);
> - for (i = 0; i < 3; i++) {
> - switch (vpix->pixelformat) {
> - case V4L2_PIX_FMT_RGB24:
> - vdeb->src_frame[index + i] = rgb[i];
> - break;
> - case V4L2_PIX_FMT_BGR24:
> - vdeb->src_frame[index + i] = rgb[2 - i];
> - break;
> +
> + if (vpix->pixelformat == V4L2_PIX_FMT_ARGB32) {
> + index = VIMC_FRAME_INDEX(lin, col, vdeb->sink_fmt.width, 4);
> + vdeb->src_frame[index] = 255;
> + for (i = 0; i < 3; i++)
> + vdeb->src_frame[index + i + 1] = rgb[i];
> + } else {
> + index = VIMC_FRAME_INDEX(lin, col, vdeb->sink_fmt.width, 3);
> + for (i = 0; i < 3; i++) {
> + switch (vpix->pixelformat) {
> + case V4L2_PIX_FMT_RGB24:
> + vdeb->src_frame[index + i] = rgb[i];
> + break;
> + case V4L2_PIX_FMT_BGR24:
> + vdeb->src_frame[index + i] = rgb[2 - i];
> + break;
> + }
> }
> }
> }
>
next prev parent reply other threads:[~2020-05-29 15:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 18:57 [PATCH] vimc: debayer: Add support for ARGB format Kaaira Gupta
2020-05-29 15:43 ` Dafna Hirschfeld [this message]
2020-06-01 12:16 ` Kaaira Gupta
2020-06-01 12:37 ` Laurent Pinchart
2020-06-01 16:27 ` Helen Koike
2020-06-02 10:52 ` Dafna Hirschfeld
2020-06-02 10:55 ` Helen Koike
2020-06-02 11:24 ` Kieran Bingham
2020-06-02 11:31 ` Helen Koike
2020-06-02 12:45 ` Laurent Pinchart
2020-06-02 13:13 ` Helen Koike
2020-06-02 13:16 ` Dafna Hirschfeld
2020-06-02 15:14 ` Laurent Pinchart
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