pvr_mem_malloc / pvr_txr_load / sq_cpy and time ...

[BlueCrab]

VQ textures are always going to lose some data. As bogglez implied, VQ textures are based on a palette of blocks of pixels. You're not going to get lossless compression with non-trivial VQ-encoded textures -- it's just a fact of life.

VQ-encoding is useful for textures for 3D games (where you won't necessarily notice the lossy nature of the compression), but not so much for any 2D pixel art.

[tonma]

OK. I will keep my code for 3d futur games.

I'll make some test with paletted texture.

[bogglez]

VQ-encoding is useful for textures for 3D games (where you won't necessarily notice the lossy nature of the compression), but not so much for any 2D pixel art.

Yeah, VQ is more useful for photographed textures (something JPEG will compress better than PNG) than for pixel perfect textures (sprites).

[bogglez]

Just wanted to give you a heads up that I finished programming the spritesheet tutorial. I just need to write the wiki entry now. I put some effort into it and made it quite comprehensive, so in the meantime here's a preview.

...and done. Here's the tutorial: http://dcemulation.org/?title=PVR_Spritesheets
I'll have some Pizza now

[tonma]

It's amazing.
Thanks for your code, it'll really help the community. And me

[bogglez]

It's amazing.
Thanks for your code, it'll really help the community. And me

You're welcome. Make sure to tell me if something's unclear or doesn't work.

[bogglez]

I updated the tutorial's zip archive with some fixes as well as the images and added a caveat section, so please redownload.