lkml.org 
[lkml]   [2019]   [Dec]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] media: vimc: get pixformat info from v4l2_format_info to avoid code repetition
From
Date
On 10/16/19 12:52 AM, Carlos E. C. Barbosa wrote:
> From: "Carlos E.C. Barbosa" <carlosecb@tutanota.com>
>
> There is overlapping code over two distinct lists. This repurposes one
> of vimc_pix_map for strictly mapping formats and remaps other calls to
> the matching v4l2_format_info.
>
> ---
>
> Change in v2:
> - Change commit message
> - Remove struct with mbus code and pointer to v4l2_format_info
> - The map and info are directly called when strictly needed
>
> Signed-off-by: Carlos E. C. Barbosa <carlosecb@tutanota.com>
> ---
> drivers/media/platform/vimc/vimc-capture.c | 14 ++--
> drivers/media/platform/vimc/vimc-common.c | 78 ++++++----------------
> drivers/media/platform/vimc/vimc-common.h | 9 +--
> drivers/media/platform/vimc/vimc-debayer.c | 9 ++-
> drivers/media/platform/vimc/vimc-scaler.c | 39 +++++++++--
> drivers/media/platform/vimc/vimc-sensor.c | 26 +++++---
> 6 files changed, 89 insertions(+), 86 deletions(-)
>
> diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
> index 602f80323031..65282d4d8a1e 100644
> --- a/drivers/media/platform/vimc/vimc-capture.c
> +++ b/drivers/media/platform/vimc/vimc-capture.c
> @@ -85,7 +85,8 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
> struct v4l2_format *f)
> {
> struct v4l2_pix_format *format = &f->fmt.pix;
> - const struct vimc_pix_map *vpix;
> + struct vimc_pix_map *vpix;
> + struct v4l2_format_info *vinfo;

No const here,

>
> format->width = clamp_t(u32, format->width, VIMC_FRAME_MIN_WIDTH,
> VIMC_FRAME_MAX_WIDTH) & ~1;
> @@ -99,7 +100,8 @@ static int vimc_cap_try_fmt_vid_cap(struct file *file, void *priv,
> vpix = vimc_pix_map_by_pixelformat(format->pixelformat);
> }
> /* TODO: Add support for custom bytesperline values */
> - format->bytesperline = format->width * vpix->bpp;
> + vinfo = v4l2_format_info(vpix->pixelformat);

but v4l2_format_info returns a const pointer. Does this patch even
compile without compiler warnings?

> + format->bytesperline = format->width * vinfo->bpp[0];
> format->sizeimage = format->bytesperline * format->height;
>
> if (format->field == V4L2_FIELD_ANY)
> @@ -159,7 +161,7 @@ static int vimc_cap_enum_fmt_vid_cap(struct file *file, void *priv,
> static int vimc_cap_enum_framesizes(struct file *file, void *fh,
> struct v4l2_frmsizeenum *fsize)
> {
> - const struct vimc_pix_map *vpix;
> + struct vimc_pix_map *vpix;
>
> if (fsize->index)
> return -EINVAL;
> @@ -387,7 +389,8 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
> const char *vcfg_name)
> {
> struct v4l2_device *v4l2_dev = &vimc->v4l2_dev;
> - const struct vimc_pix_map *vpix;
> + struct vimc_pix_map *vpix;
> + struct v4l2_format_info *vinfo;
> struct vimc_cap_device *vcap;
> struct video_device *vdev;
> struct vb2_queue *q;
> @@ -443,7 +446,8 @@ struct vimc_ent_device *vimc_cap_add(struct vimc_device *vimc,
> /* Set default frame format */
> vcap->format = fmt_default;
> vpix = vimc_pix_map_by_pixelformat(vcap->format.pixelformat);
> - vcap->format.bytesperline = vcap->format.width * vpix->bpp;
> + vinfo = v4l2_format_info(vpix->pixelformat);
> + vcap->format.bytesperline = vcap->format.width * vinfo->bpp[0];
> vcap->format.sizeimage = vcap->format.bytesperline *
> vcap->format.height;
>
> diff --git a/drivers/media/platform/vimc/vimc-common.c b/drivers/media/platform/vimc/vimc-common.c
> index a3120f4f7a90..73feea089921 100644
> --- a/drivers/media/platform/vimc/vimc-common.c
> +++ b/drivers/media/platform/vimc/vimc-common.c
> @@ -14,185 +14,151 @@
> * NOTE: non-bayer formats need to come first (necessary for enum_mbus_code
> * in the scaler)
> */
> -static const struct vimc_pix_map vimc_pix_map_list[] = {
> +static struct vimc_pix_map vimc_pix_map_list[] = {

Why was const removed here?

This patch also needs to be rebased, so I stop reviewing here and
wait for a v2.

Regards,

Hans

\
 
 \ /
  Last update: 2019-12-13 11:10    [W:0.052 / U:48.896 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site