I have been warned, not to use OpenGL ES on the Pandora, but I did mostly out of convenience. I didn't notice any slowdowns at first, but tested at 600MHz and you're right.Thank you for the update, just tried and works but seems a little slower than using framebuffer, I noted some visible slowdowns using OpenGL ES, anyway I didn't try to overclock, I was running at 600 Mhz.
I will see about the palette stuff. I didn't want to invest so much more time in this emulator, but I do want to leave it in a usable state.This is a VERY NICE emulator! Good work!
I think if you can implement the neon based scale2x filters you will be onto a winner!
I also think custom Gameboy pallete support and supergameboy palletes/backgrounds would make this the best damn gameboy emulator for Pandora.
I did notice the sound doesn't sound quite right at times though.