NeoChrom/GPU2D registers documentation

[robvos]

Will this peripheral ever be documented in detail? i.e. registers, interrupts, etc.

Or even a lightweight/low level library would be acceptable.

We may choose STM32U5 for a product but not if we are forced to use TouchGFX for good performance.

[Jack3]

What GPU2D functions can be used for draw any bitmap, even those without alpha transparency, with any programmed arbitrary alpha transparency?

Thank you very much in advance for any help.

Update:

I got it working, it was easy after all, just set const color and blend blit properly.

Bitmap rotation, scaling, and alpha-transparancy: