PikoPixel - NSInvalidAgumentException mutableBytes: GSCurrentContext Data vs. MutableData

[Riccardo Mottola]

Hi,

I just tried PP on a different laptop - still similar setup to the one 
I already reported for the window positioning error (Gentoo Linux, 
WindowMaker, gcc 4.9, quite recent GNUstep) but with the libart 
backend.

The application shows menus, but before showing any window I get a 
NSInvalidArgumentException NSDataMalloc(instance) does not recongize 
mutableBytes.

The mutableData call happens in PPGNUstepGlue_BitmapGraphicsContext.m 
: 689

You want to get the object for key "Data" out of the GSCurrentContext, 
you expect it to be an instance of NSMutableData, but you get back 
NSData instead.

Is the libart context different from cairo? or are you instead abusing 
of Data here?

Riccardo