I want to use sub-pixel enhancements for text on the GBA/DS. Can the colour order be confirmed. For people who don't know the trick, the LSD makes a pixel using 3 columns thus: RGB RGB RGB This (assuming 31 for all 3 colours) then you get a white pixel. Now, look at this -GBR -GBR -GBR The left pixel has the R set to black and the G & B on full brightness. On the next pixel, only the red is set. Thus the white (or any shade of gray) pixel has moved right by 1/3 of a pixel. It only worksd with grayscale bot man, does it make for great, smooth graphics and scrolls. Imagine, the DS suddenly has an X resolution of 768 pixels. I wrote a scroller which used the system and it worked like a charm. I always outline the text with a black pixel to avoid fringing. You cannot use it with coloured images so I use 2 sets. One grayscale (and triple X-res) and then another using only single pixel resolution.
This is similar to the "clear type" font resolution enhancement used on laptops Its nice to see the idea being tried on the GBA/DS, would you considure posting your demo code ? It would be nice to see it in action.
LSD = LCD? ;-) iirc. the subpixel ordering is different between the lower and upper screen. (not 100% sure could remeber wrong)
Wow, I can believe that, with one being a touch-screen. On the GBA I think you could swap the order (or rather, which data went where) that may have been in there for the BIOS to change should a different LCD be used...
I guess you could always put a single white pixel on each screen and then look at them with a magnifying lens
Oh, it's easy to test, but can I assume it will always the same. On the GBA, I think they had a BIOS thingy that could swap the outputs due to colour order. Unless I can read that value, or know it will not change, then I cannot use it..
to be safe you could always add a config menu to your program that allows a choice of lcd color modes :shrug:
I could, thats one way, but it is.... inellegant and I'm not sure how Nintendo would take it. I BET that hidden away somewhere is a method of finding out (there was on the DS) and, if Nintendo accept the product then they SHOULD tell me.
you could allways check with the people over at dsdev.org's forum. They could probably help you in the right direction.
