Rockbox mail archiveSubject: Re: Skin buffer size
Re: Skin buffer size
From: Edgar Toernig <froese_at_gmx.de>
Date: Fri, 16 Jul 2010 04:13:12 +0200
Jonathan Gordon wrote:
> You are preaching to the choir here, The way people care about tiny
> amounts of RAM is rediculous, but that is what we do...
Rediculous indeed. Btw, 1*SKIN_FONT_SIZE or 5*SKIN_FONT_SIZE
doesn't change the available buffer space reported by System->
Rockbox Info: it stays at 7.34MB (on an 8MB device!).
> does increasing it to 2 *SKIN_FONT_SIZE work?
No, 2 is not enough. My skin works with 4 at the moment (20kB/22kB)
but some more tweaks and it will overflow again.
> The problem with the mono targets is that there is no backdrop buffer
> and a much smaller image buffer, the backdrop one is the important
> one, on the bigger targets when the backdrop is shared between all
> skins you have a couple hundred KB free for fonts and stuff. On mono
> there isnt this huge buffer and really the size hasn't been calibrated
> (for want of a better word).
> So, if 2 or 3 works I'd be interested in a atch which increases
> MAIN_BUFFER for mono targets as a stopgap solution.
Well, 3 is not enough but here's a patch anyway:
_at__at_ -56,7 +56,16 _at__at_
+#if LCD_BACKDROP_BYTES == 0
+/* no backdrop buffers - give some extra room for fonts */
+#define MAIN_BUFFER_EXTRA (4 * SKIN_FONT_SIZE)
+#define MAIN_BUFFER_EXTRA 0
#define MAIN_BUFFER ((2*LCD_HEIGHT*LCD_WIDTH*LCD_DEPTH/8) \
+ + MAIN_BUFFER_EXTRA \
+ (SKINNABLE_SCREENS_COUNT * LCD_BACKDROP_BYTES))
#if (NB_SCREENS > 1)
Received on 2010-07-16