[Ipodlinux-devel] Graphics library...

[damien m. <Dam...@li...>]

Hi,

as i said in a previous post, i have done a tiny (and buggy) graphics 
library for the ipod with a pseudo emulator (in opengl) to make the 
developpement easier. (i have just readed about nanogui from the mailing 
  list archive)

Currently i have:
- drawHorizLines
- putPixel
- get/setContrast
- putSprite
- drawFont with font size of 6x11 et 8x8

as soon as debugged (the putsprite at any position give me a headache) i 
'll release this. I also have a tool to convert from header files 
(exported by gimp) to ipod_sprite format.

If you have, 4 colors artwork, fonts, images, icons
i'm very interrested in collecting them.


The questions now...

Do somebody has informations about the ipod display ?
- speed in the differents mode ?
- is it better to directly render on the screen or having a double 
buffer in memory (like in fb) ?
- how to render viewable basic animation ?

For what i know, incremental update is much more viewable than deleting 
everything followed by a redraw (i'm so sad that ipod haven't an GBA 
display :) )


The existential part know:

Currently i disconnect the fb driver of the kernel and i directly 
address the screen from an userland API. Somebody has a better solution ?

In my point of view a usermode api that access to ipod-hardware is bad 
but easier than doing fully Posix-Apm-fb-compilant.

What is yours opinions ?

What about doing a complete ipod-API for all hardware access (for 
individual components sleep mode, get/set processor speed, screen 
access, timer, keypad. As far as i know their is no protected-mode
in uClinux so their is no problem to do this.

Cheers,
Damien Marchal.