The data is a simple unsigned char * so thanks for the leads.
M On Oct 26, 2005, at 1:02 PM, Chris Barker wrote: > michael ferraro wrote: > >> I need to eliminate any copies of a PixMaps used >> by a Quicktime Movie that I am texture mapping >> with OpenGL. I have built an extension in "C" but >> I am a bit unclear as to how to "circumvent" the the >> copy done by Py_BuildValue. >> >> I was wondering if any one has any experience >> or advice on how to approach this. Is the Buffer >> Object/API the right way to go? or is there >> another approach >> > > What form is the data in in your c code? A pointer to simple C array? > > If so, the buffer object could work, or you could build a NumPy > array. I > think PyOpenGL can work with them natively. If you want to got hat > route, the situation is pretty confusing as there are now three (count > 'em three!) implementations, Numeric, numarray, and the new > SciPy.base. > I'd go with whatever PyOpenGL supports, or, if you have the option, > and > can tolerate beta code, Scipy.base. With any luck it will be the next > generation NumPy. > > http://numeric.scipy.org/ > > SciPy.base has also introduced a new "array protocol/interface", > which > I think has been back ported to both Numeric and numarray: > > http://numeric.scipy.org/array_interface.html > > This was designed with just this kind of use in mind. > > -Chris > > > > -- > Christopher Barker, Ph.D. > Oceanographer > > NOAA/OR&R/HAZMAT (206) 526-6959 voice > 7600 Sand Point Way NE (206) 526-6329 fax > Seattle, WA 98115 (206) 526-6317 main reception > > [EMAIL PROTECTED] > _______________________________________________ > Pythonmac-SIG maillist - Pythonmac-SIG@python.org > http://mail.python.org/mailman/listinfo/pythonmac-sig > _______________________________________________ Pythonmac-SIG maillist - Pythonmac-SIG@python.org http://mail.python.org/mailman/listinfo/pythonmac-sig
