Comment by zokier
1 day ago
Are you claiming that scrapping together boxes and whatnot with line drawing characters is more efficient than just drawing the lines directly?
1 day ago
Are you claiming that scrapping together boxes and whatnot with line drawing characters is more efficient than just drawing the lines directly?
I think they're claiming that having character-based pipelines and algorithms can be more efficient than doing everything on the level of pixels... I can't help but feel there's a middle-ground somewhere, though.
For simple SPI displays it's the transfer bandwidth that dominates, so for best performance you wanna minimize the number of pixels you need to send. So for eaxmple: if you wanna draw a 100 pixel long horizontal line, if you ever send more than 100 pixels of data you're not gonna hit the speed of light. And if you wanna draw an angled line you're gonna have to do something like bresenham and pixel by pixel because drawing NxN blocks for a 45 degree line would be insane.