Need analyze stack usage about deviation HOT 5 OPEN

so far we cannot do anything better than compiler unless we move something as global variables.

from deviation.

These are the most expensive functions from a stack usage perspective:

Devo8:
ini_parse_file                      512      356        6
limit_cb                            668      460        8
RemapChannelsForProtocol           1048      668        4
debug_spi_flash                    1080     1036        5
LCD_DrawWindowedImageFromFile      1248     1036        8
reorder_return_cb@objs/devo8/mixer_page.o     3040     2660        4

Devo7e
limit_cb                            660      460        7
RemapChannelsForProtocol           1008      636        4
debug_spi_flash                    1080     1036        5
LCD_DrawWindowedImageFromFile      1256     1044        8
reorder_return_cb@objs/devo7e/mixer_page.o     3032     2660        4

I already have PR #583 to address reorder_return_cb

from deviation.

debug_spi is not used anywhere.
I am working on LCD_drawwindowedimagefromfile.

from deviation.

it should be easy to reduce the usage of DrawImageFromFile for 7e. However, as I recall, this is one of the functions whose performance is actually noticeable at the system level. We do not want to optimize stack-size over performance on this one I think (and if you decide to we'd probably want to do user testing to make sure it isn't noticeable)

from deviation.

from deviation.