lcd_putsxyofs 16 bit lcd_mono_bitmap_part [AS] part duex

'Bugfix' mono_bitmap_part reads ahead in the buffer,
if the height is <= char bit pixels other memory gets read
found with [Address Sanitizer]

also g#3332 since this is clearly a problem across the code
instead place the check for height < 8 in the lcd_mono_bitmap_part function

second try places the check above the negative y offset
this was causing glitches on the Q1 and likely other TS targets
since a negative y was added to height it made it < CHAR_BIT setting
stride = 0 even though the bitmap was >= CHAR_BIT high

Change-Id: I13bb8ab472c2ae61302a6de5d9e2c78243354460

0 files changed, 0 insertions, 0 deletions