Packing resources

I think yours is a good idea. I did the same for images, fonts, game dialogs etc.
For example I stored all images to a single DAT file.
This file has a header, which tells offset/size of each image.

Also, I decided to use a simple pixel image format instead of BMP, JPG etc.
The image also has its header (storing ID, dimensions etc)

I store only 16 bits of data per pixel (as I don't need more for Windows Mobile RGB-565), and I apply a simple RLE compression. This makes an image a lot smaller than the corresponding BMP file.

Of course this approach requires you to code a image conversion utility, a datafile builder, and routines to load the datafile & parse image data.

In case you don't feel like reinventing the wheel.

shmoove

Thank you for the replies!

shmoove, I think that is exactly what I was looking for!
I'll take a better look...

Regards,

John.

If you want to pack all your images into a single file and they use the same palatte then you can save even more space by only storing the palatte once.

Have a look at the sticky thread on www.j2meforums.com (under game development) called something similar to Tips and tricks to make your PNGs smaller. This contains a lot of useful information on how to reduce the size of your files.

Finally don't forget to use something like PNGCrush to reduce the size of your PNG files.

Greig

Quote:

Original post by Greig Hamilton Have a look at the sticky thread on www.j2meforums.com (under game development) called something similar to Tips and tricks to make your PNGs smaller. This contains a lot of useful information on how to reduce the size of your files.

Give me all your tricks for minimizing jar file size. A great resource indeed.

shmoove

Hey Greig, thank you very much for the tip!

I read the entire topic and it helped a lot! Thank you again!

Thanks for all people who reply the topic!

Regards,

John.