Is there any way to tell how much memory a theme is taking up?

[akadewboy]

I'm trying to code a memory efficent WPS theme, and I was wondering if there's anyway to tell how much memory a particular WPS takes up.

[Bagder]

All WPSes use the exact same amount of memory since the buffers reserved in Rockbox are fixed-size...

[akadewboy]

Oh ok I guess I can be as sloppy as I want then  

One more question, do transparent pixels (255, 0, 255) in images fill up the buffer and take up memory or are they just skipped over?

[bascule]

Oh ok I guess I can be as sloppy as I want then 

Well, no you can't, because if you exceed the buffer, you will just lose your WPs content after that point. For example:

The first picture is my current WPS. If I replace the standard progress bar with a text-based one using %?px, then I start to lose some of the graphics ...

[attachment deleted by admin for age]

[akadewboy]

Yes I understand that, but if my WPS works fine now, there's no reason for me to go over it with a fine tooth comb to make it more memory efficent. I'll just leave it all sloppy.

I'm still curious if transparent pixels are loaded into memory or just skipped over. Anyone know the answer?

[Bagder]

A pixel is still a pixel and since BMP files are loaded as whole entities it doesn't matter if they are treated as transparent or not. They take the same amount of memory.

[Multiplex]

A pixel is still a pixel and since BMP files are loaded as whole entities it doesn't matter if they are treated as transparent or not. They take the same amount of memory.

Does this mean that the coulour depth of the BMP doesn't matter?

I'm trying to fix up a WPS that runs out of image memory - all the BMPs are 24 bit, I was wondering if I could save memory by saving them as 16 or 8 bit, with pallette (not that I've worked out how yet)

I'm assuming that the images are stored in the native format format for the LCD so this won't help but if it will I should do it.

Edit: just revisited the WPS wiki page and it seems only 24bit or 1 bit is permitted... any other ideas are welcome...

[Multiplex]

To find out when images were not loading I used the simulator and its wpsdebug option as detailed herehttp://forums.rockbox.org/index.php?topic=12858.msg97260#msg97260 it tells you when images are not loaded due to space limitations (or typos in the filename ;-)

I can write up some notes on how I got the space requirements down for the WPS I was working on if folks want.