fb: cfb: Use signed-integer for API that specifies coordinations #85443
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Change the arguments of `cfb_invert_area`, `cfb_print`, and `cfb_draw_(point|line|rect)`, which used unsigned integers to specify coordinates to signed integers. This is because coordinate calculations are usually based on real numbers, so it is difficult to use unless negative numbers are accepted. We clip drawings outside the drawable area on the implementation side. Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
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Change the arguments of
cfb_invert_area,cfb_print, andcfb_draw_(point|line|rect), which used unsigned integers to specify coordinates to signed integers.This is because coordinate calculations are usually based on real numbers, so it is difficult to use unless negative numbers are accepted.
We clip drawings outside the drawable area on the implementation side.