linux-kernel - Re: [PATCH 2/2] venus: venc: fix handlig of S_SELECTION and G

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Message-ID: <CAAFQd5CTyjagd7grrCkret2WnvoLHQk83fg+1QPK+V1NbhKTvw@mail.gmail.com>
Date:   Fri, 25 Sep 2020 22:55:55 +0200
From:   Tomasz Figa <tfiga@...omium.org>
To:     Dikshita Agarwal <dikshita@...eaurora.org>,
        Stanimir Varbanov <stanimir.varbanov@...aro.org>
Cc:     Linux Media Mailing List <linux-media@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        Vikash Garodia <vgarodia@...eaurora.org>
Subject: Re: [PATCH 2/2] venus: venc: fix handlig of S_SELECTION and G_SELECTION

Hi Dikshita, Stanimir,

On Thu, Sep 24, 2020 at 7:31 PM Dikshita Agarwal
<dikshita@...eaurora.org> wrote:
>
> From: Stanimir Varbanov <stanimir.varbanov@...aro.org>
>
> - return correct width and height for G_SELECTION
> - if requested rectangle wxh doesn't match with capture port wxh
>   adjust the rectangle to supported wxh.
>
> Signed-off-by: Dikshita Agarwal <dikshita@...eaurora.org>
> ---
>  drivers/media/platform/qcom/venus/venc.c | 20 ++++++++++++--------
>  1 file changed, 12 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/venus/venc.c b/drivers/media/platform/qcom/venus/venc.c
> index 7d2aaa8..a2cc12d 100644
> --- a/drivers/media/platform/qcom/venus/venc.c
> +++ b/drivers/media/platform/qcom/venus/venc.c
> @@ -463,13 +463,13 @@ static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
>         switch (s->target) {
>         case V4L2_SEL_TGT_CROP_DEFAULT:
>         case V4L2_SEL_TGT_CROP_BOUNDS:
> -               s->r.width = inst->width;
> -               s->r.height = inst->height;
> -               break;
> -       case V4L2_SEL_TGT_CROP:
>                 s->r.width = inst->out_width;
>                 s->r.height = inst->out_height;
>                 break;
> +       case V4L2_SEL_TGT_CROP:
> +               s->r.width = inst->width;
> +               s->r.height = inst->height;
> +               break;
>         default:
>                 return -EINVAL;
>         }
> @@ -490,10 +490,14 @@ static int venc_g_fmt(struct file *file, void *fh, struct v4l2_format *f)
>
>         switch (s->target) {
>         case V4L2_SEL_TGT_CROP:
> -               if (s->r.width != inst->out_width ||
> -                   s->r.height != inst->out_height ||
> -                   s->r.top != 0 || s->r.left != 0)
> -                       return -EINVAL;
> +               if (s->r.width != inst->width ||
> +                   s->r.height != inst->height ||
> +                   s->r.top != 0 || s->r.left != 0) {
> +                       s->r.top = 0;
> +                       s->r.left = 0;
> +                       s->r.width = inst->width;
> +                       s->r.height = inst->height;

What's the point of exposing the selection API if no selection can
actually be done?

Best regards,
Tomasz