[cairo] Implementing cairo_read_func_t/cairo_write_func_t properly

Sat Jan 2 11:45:00 PST 2016

On Sat, 2 Jan 2016 15:05:04 +0100, Enrico Weigelt, metux IT consult
wrote:

> On 02.01.2016 12:35, Behdad Esfahbod wrote:
>
>> On Sat, 2 Jan 2016 12:27:40 +0100, Enrico Weigelt, metux IT consult
>> wrote:
> 
>>> Actually, I really wonder what that stream API is really for.
>>> Why not just let everything operate on an fd or directly mmap()
>>> the whole file ?  
>> 
>> A very simple reason is language binding, or in general, hooking up
>> to other IO libraries (gio, etc).  
> 
> hmm, what for, exactly ?

As stated, for allowing I/O to/from other sources than files.

For example, I output to PNG streams here
<https://github.com/ldo/qahirah_notebooks> so that I can display the
resulting graphics in the notebook.