What are the many ttf formats in the asset converter?

[janb]

I wanted a monospaced font for my GD3X-based application. I found one and converted it into the header file which I include...
I could NOT make it work with the smaller header and a 'font.gd3' file on my SD card...

So, I guess that my font is put into GD3X Flash Memory? But shouldn't this be done only ONCE, not every time my program is run?

I guess that I should use the 'gd3asset' to convert fonts for GD3X? But I can't figure out what all the different 'format's are; I used the default and it seemed to work...

[jamesbowman]

There is a tutorial on loading a ttf font here:

gameduino2.proboards.com/thread/189/custom-font

[janb]

I had already found this "tutorial", but I still have this question:
'gd3asset --help' show 23 possible 'format' parameter values for jpg,png,bmp,gif,ttf,otf files, like L1, L2, L4, L8, RGB332, ARGB2...
What do they mean; what's the difference? Are they described somewhere?

[jamesbowman]

OK, yes.

These are the hardware bitmap formats. The main formats are covered on p.36 of the book:

excamera.com/files/gd2book_v0.pdf

When converting a TTF file, you can select any bitmap format for the characters.

For fonts, only the monochrome formats make sense. So L1, L2, L4, L8 are the best ones.
I normally use L4, that is, 4-bit per pixel monochrome.