Image to raw data conversion <OT>

[amcfall]

I now have a Nokia-ish graphical LCD (mostly) working, but I can't find a good way to get a picture (prefereably bitmap) into raw (preferably formatted hex) data. I've tried a few RAW converters that give odd colors, and multi step conversion processes with no luck. I'm guessing there is an app out there that does it, I just haven't been able to find it(perhaps my google fu is weak).

Thanks,

Avery

[Sophi]

Try WinHex. You can google it and get a free trial. I just loaded a jpg into it and converted the binary file to Intel-Hex. Trial will only take files up to 200kB so bmp was too big.
WinHex conversions are accurate for wav files but I don't know anything of its accuracy in graphics.
I am really interested in learning to program graphical LCDs so feel free to PM me if you want to share more about your project. I would like to hear.
SophE

[amcfall]

Thanks for the responses, sorry about the lack of specifics. It is a 12 bit screen from sparkfun.com:

http://www.sparkfun.com/commerce/product_info.php?products_id=569

Controller is an Epson:

http://www.hantronix.com/down/S1D15G00_REV1_0.pdf

I've had good luck with GCLCD converting bitmaps to hex: (spanish?)

http://www.hobbypic.com/index.php?option=com_content&task=view&id=15&Itemid=36

I wish I knew VB better, I'd just follow Marks suggestion and write my own program. GCLCD seems to work pretty well, but an english program would be nice for when I forget which button to push.

Right now for 12 bit I'm taking the 16 bit raw data(RGB,565), breaking it up into r,g,b and shifting each one down to 4 bits. This looks pretty good with 16 bit bitmaps.

I'll check out fontgen in a moment, looks quite useful. Thanks for the link. Should be great for text over graphics kinda stuff.

Now I'll go read up on RLE, and code a little more. Thanks all.

Avery

PS This made more sense last night before some responses dissapeared.

PPS Dumb question, how is integer division handled? Always rounded down? If I want to round up when decimal portion is over .5 do I ned to do it myself with %?

[Guest]

You probably already know this but Sparkfun has a forum too. I was planning to get that LCD and experiment...guess I'll see if you get anywhere with it first.
SophE
And what did happen to those replies?