[libcamera-devel] [PATCH v2 2/7] libcamera: ipu3: imgu: Filter BDS by height

[Hirokazu Honda]

Hi Jacopo, thank you for the patch,

On Mon, May 3, 2021 at 7:56 PM Niklas Söderlund <
niklas.soderlund at ragnatech.se> wrote:

> Hi Jacopo,
>
> Thanks for your patch.
>
> On 2021-05-03 11:27:00 +0200, Jacopo Mondi wrote:
> > Apply to calculateBDS() function the content of commit 243d134 ("Fix
> > some bug for some resolutions") from
> > https://github.com/intel/intel-ipu3-pipecfg.git.
> >
> > The calculated BDS sizes are filtered by height and not only by width
> > anymore.
> >
> > Tested-by: Jean-Michel Hautbois <jeanmichel.hautbois at ideasonboard.com>
> > Reviewed-by: Jean-Michel Hautbois <jeanmichel.hautbois at ideasonboard.com>
> > Signed-off-by: Jacopo Mondi <jacopo at jmondi.org>
>
> Acked-by: Niklas Söderlund <niklas.soderlund at ragnatech.se>
>
> > ---
> >  src/libcamera/pipeline/ipu3/imgu.cpp | 20 +++++++++++++++-----
> >  1 file changed, 15 insertions(+), 5 deletions(-)
> >
> > diff --git a/src/libcamera/pipeline/ipu3/imgu.cpp
> b/src/libcamera/pipeline/ipu3/imgu.cpp
> > index 8373dc165a61..36fee31c1962 100644
> > --- a/src/libcamera/pipeline/ipu3/imgu.cpp
> > +++ b/src/libcamera/pipeline/ipu3/imgu.cpp
> > @@ -33,6 +33,7 @@ namespace {
> >   * at revision: 61e83f2f7606 ("Add more information into README")
> >   */
> >
> > +static constexpr unsigned int FILTER_W = 4;
> >  static constexpr unsigned int FILTER_H = 4;
> >


Would you mind adding comments about these const variables in another patch?
By the way, static is unnecessary to the variables.

Reviewed-by: Hirokazu Honda <hiroh at chromium.org>

>
> >  static constexpr unsigned int IF_ALIGN_W = 2;
> > @@ -194,15 +195,20 @@ void calculateBDSHeight(ImgUDevice::Pipe *pipe,
> const Size &iif, const Size &gdc
> >
> >  void calculateBDS(ImgUDevice::Pipe *pipe, const Size &iif, const Size
> &gdc, float bdsSF)
> >  {
> > -     unsigned int minBDSWidth = gdc.width + FILTER_H * 2;
> > +     unsigned int minBDSWidth = gdc.width + FILTER_W * 2;
> > +     unsigned int minBDSHeight = gdc.height + FILTER_H * 2;
> >
> >       float sf = bdsSF;
> >       while (sf <= BDS_SF_MAX && sf >= BDS_SF_MIN) {
> >               float bdsWidth = static_cast<float>(iif.width) / sf;
> > +             float bdsHeight = static_cast<float>(iif.height) / sf;
> >
> > -             if (std::fmod(bdsWidth, 1.0) == 0) {
> > +             if (std::fmod(bdsWidth, 1.0) == 0 &&
> > +                 std::fmod(bdsHeight, 1.0) == 0) {
> >                       unsigned int bdsIntWidth = static_cast<unsigned
> int>(bdsWidth);
> > -                     if (!(bdsIntWidth % BDS_ALIGN_W) && bdsWidth >=
> minBDSWidth)
> > +                     unsigned int bdsIntHeight = static_cast<unsigned
> int>(bdsHeight);
> > +                     if (!(bdsIntWidth % BDS_ALIGN_W) && bdsWidth >=
> minBDSWidth &&
> > +                         !(bdsIntHeight % BDS_ALIGN_H) && bdsHeight >=
> minBDSHeight)
> >                               calculateBDSHeight(pipe, iif, gdc,
> bdsIntWidth, sf);
> >               }
> >
> > @@ -212,10 +218,14 @@ void calculateBDS(ImgUDevice::Pipe *pipe, const
> Size &iif, const Size &gdc, floa
> >       sf = bdsSF;
> >       while (sf <= BDS_SF_MAX && sf >= BDS_SF_MIN) {
> >               float bdsWidth = static_cast<float>(iif.width) / sf;
> > +             float bdsHeight = static_cast<float>(iif.height) / sf;
> >
> > -             if (std::fmod(bdsWidth, 1.0) == 0) {
> > +             if (std::fmod(bdsWidth, 1.0) == 0 &&
> > +                 std::fmod(bdsHeight, 1.0) == 0) {
> >                       unsigned int bdsIntWidth = static_cast<unsigned
> int>(bdsWidth);
> > -                     if (!(bdsIntWidth % BDS_ALIGN_W) && bdsWidth >=
> minBDSWidth)
> > +                     unsigned int bdsIntHeight = static_cast<unsigned
> int>(bdsHeight);
> > +                     if (!(bdsIntWidth % BDS_ALIGN_W) && bdsWidth >=
> minBDSWidth &&
> > +                         !(bdsIntHeight % BDS_ALIGN_H) && bdsHeight >=
> minBDSHeight)
> >                               calculateBDSHeight(pipe, iif, gdc,
> bdsIntWidth, sf);
> >               }
> >
> > --
> > 2.31.1
> >
> > _______________________________________________
> > libcamera-devel mailing list
> > libcamera-devel at lists.libcamera.org
> > https://lists.libcamera.org/listinfo/libcamera-devel
>
> --
> Regards,
> Niklas Söderlund
> _______________________________________________
> libcamera-devel mailing list
> libcamera-devel at lists.libcamera.org
> https://lists.libcamera.org/listinfo/libcamera-devel
>
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