[cairo] Drawing into a memory block

[Jonathan Roewen]

Hi,

How do I get cairo to draw into a block of memory representing my
linear frame buffer?

I'm trying to get one of the snippets to draw into the memory and have
it displayed onscreen (without buffering), but nothing appears to be
drawn.

The function I'm using to create the surface is:
cairo_image_surface_create_for_data(gfx_info->video_base, ....); where
video_base is pointer to LFB.

However, I'm having trouble finding exactly what I need in the
documention, so I'm not sure where I'm going wrong...

Kindest Regards,

Jonathan Roewen