Philipp Metzner <philipp.metz...@tum.de> writes: > Hi all, > > I created an |pyopencl.Image| object via: > > |importpyopencl ascl importnumpy asnp ctx =cl.create_some_context()image > =cl.image_from_array(ctx,np.ones((16,16),dtype=np.uint8))| > > How can I obtain the image channel type information (here, > |cl.channel_type.UNSIGNED_INT8|)? I want to implement a generic > downloading function that returns a numpy array given an |Image|. > > I tried two approaches: > > Using |Image.element_size| gives me the byte size of a single element, > however I can't map the element size to a data type (float32 and int32 > have the same element size, for instance). > > |Image.format| returns a |cdata 'struct _cl_image_format &'|. Querying > either of the fields |image_channel_data_type| and |image_channel_order| > returns 0, the default values of the ImageFormat constructor. > > Or do you recommend a different approach (using Array, f.i.)?
That was a bug. Fixed in git: https://github.com/pyopencl/pyopencl/commit/87fec9cba500a6aff47b7c0367c7663b4938404f Thanks for the report! Andreas _______________________________________________ PyOpenCL mailing list PyOpenCL@tiker.net https://lists.tiker.net/listinfo/pyopencl
