[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]
Re: [pygame] BufferProxy (was Flood Filling Images)
Note that the examples/pixel_array.py shows you a bunch of examples of
how to use PixelArray.
cheers,
On Tue, Apr 15, 2008 at 6:14 PM, Marcus von Appen <mva@xxxxxxxxxxxx> wrote:
> On, Tue Apr 15, 2008, Brian Fisher wrote:
>
> > My bad, I always assumed implementing the buffer interface would make
> > the BufferProxy object give python code the ability to modify the
> > contents of the surface just like through array.array...
> >
> > I dislike adding numpy/numeric as a dependency, and previously I sped
> > some stuff up by making an array from a string, modifying the array,
> > then making a new surface from the modified array as a string vs.
> > getting and setting pixels, so I would love it if I could just do
> > stuff like:
> > ---
> > surface = Surface((1,1), 32)
> > surface_contents = surface.get_buffer()
> > surface_contents[3] = 0
> > ---
> > or whatever...
> >
> > does that seem like something that would be sensible to add to the
> > buffer proxy? is there a C python interface thing that makes providing
> > that kind of access real easy?
>
> That's what the PixelArray is for. Due to the alignment, pitch, etc. of
> the surface data, you cannot easily operate directly on the
> buffer. BufferProxy is just a simple interface to the surface pixels so
> other systems like e.g. numpy can (ab)use surfaces pixels easily without
> the need to write C code for them.
>
> Regards
> Marcus
>