calling or wrapping a function from cpp api

[bndp]

hello I wanted to use openimageio cpp library for some basic image writing with cython.

I quickly realized I was over my head, here is a basic example from the documentation.

 

//

#include <OpenImageIO/imageio.h>

int main()

{

  const char *filename = "foo.jpeg";

  const int xres = 640, yres = 480;

  const int channels = 3; // RGB

  unsigned char pixels[xres*yres*channels];

  OpenImageIO::ImageOutput *out = OpenImageIO::ImageOutput::create (filename);

    if (! out)

        return false;

  OpenImageIO::ImageSpec spec (xres, yres, channels, OpenImageIO::TypeDesc::UINT8);

  out->open (filename, spec);

  out->write_image (OpenImageIO::TypeDesc::UINT8, pixels);

  out->close ();

  delete out;

}

//

I have spent an embarrassing amount of time trying to work out how to duplicate this example with cython/python. They do provide a python api which works well, but as I only want to write images with it I thought i would try to wrap the image writing part. I would welcome any examples untested even :) . My attempts have led me in circles 

[Eujain Ting]

Go into the OpenImageIO includes folder and find the header files containing the functions you want to wrap, and have at it. For this example you want to wrap class OIIO_API ImageOutput from imageio.h

--

---
You received this message because you are subscribed to the Google Groups "cython-users" group.
To unsubscribe from this group and stop receiving emails from it, send an email to cython-users...@googlegroups.com.
For more options, visit https://groups.google.com/d/optout.