target/linux/bcm27xx/patches-5.15/950-0493-staging-bcm2835-codec-Allow-custom-specified-strides.patch

   1 From f4d34546637944b30ef09e96aa84802d7d69e72c Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Sat, 11 Sep 2021 17:21:07 +0100
   4 Subject: [PATCH] staging: bcm2835-codec: Allow custom specified
   5  strides/bytesperline.
   6
   7 If the client provides a bytesperline value in try_fmt/s_fmt then
   8 validate it and correct if necessary.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  11 ---
  12  .../vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c      | 8 ++++++--
  13  1 file changed, 6 insertions(+), 2 deletions(-)
  14
  15 --- a/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  16 +++ b/drivers/staging/vc04_services/bcm2835-codec/bcm2835-v4l2-codec.c
  17 @@ -1347,7 +1347,7 @@ static int vidioc_g_fmt_vid_cap(struct f
  18  static int vidioc_try_fmt(struct bcm2835_codec_ctx *ctx, struct v4l2_format *f,
  19                           struct bcm2835_codec_fmt *fmt)
  20  {
  21 -       unsigned int sizeimage;
  22 +       unsigned int sizeimage, min_bytesperline;
  23
  24         /*
  25          * The V4L2 specification requires the driver to correct the format
  26 @@ -1375,8 +1375,12 @@ static int vidioc_try_fmt(struct bcm2835
  27                         f->fmt.pix_mp.height = ALIGN(f->fmt.pix_mp.height, 16);
  28         }
  29         f->fmt.pix_mp.num_planes = 1;
  30 +       min_bytesperline = get_bytesperline(f->fmt.pix_mp.width, fmt);
  31 +       if (f->fmt.pix_mp.plane_fmt[0].bytesperline < min_bytesperline)
  32 +               f->fmt.pix_mp.plane_fmt[0].bytesperline = min_bytesperline;
  33         f->fmt.pix_mp.plane_fmt[0].bytesperline =
  34 -               get_bytesperline(f->fmt.pix_mp.width, fmt);
  35 +               ALIGN(f->fmt.pix_mp.plane_fmt[0].bytesperline, fmt->bytesperline_align);
  36 +
  37         sizeimage = get_sizeimage(f->fmt.pix_mp.plane_fmt[0].bytesperline,
  38                                   f->fmt.pix_mp.width, f->fmt.pix_mp.height,
  39                                   fmt);