To be able to compare FPS numbers,
I think it would it make sense to define some reproducible "FPS" operations
that represent what is done on each "frame".
That way we can actually compare equivalent operations across libraries and glcd modules.
How about any of these or even some combination of multiple ones.
a) render a full display bitmap
b) clear the display (might be done in s/w or by the module itself)
c) turning on all pixels, one pixel at a time.
(might even want to do two of these as painting horizontally might be different than vertically)
d) render a full display of text in a natural font size like 6x8 or 8x8
(maybe pick a single character like '@' so that everyone is rendering the same character).
I think it would be very interesting to be able to really compare between
libraries, glcd modules, and even different interface modes on the same module.
It would be pretty simple to do a or a and b together to offer at least one FPS data point
that could be compared.
--- bill