EclaireXL

01/29/2020

FO 10:13 PM Feature #85: 720p support/1080i support

Cleaned up the i2c wiring to be more generic. crtc wiring working too. Can switch from 720p50 and 1080i50 in firmware now (manual code, not menu yet...). Just wired up polyphasic too, except filter params which are currently hardcoded la... foft

01/26/2020

FO 09:58 PM Feature #85: 720p support/1080i support

Adding the i2c wiring to allow these to be controlled from the firmware. So far areascale wired up and working. Now doing crtc, then will do polyphasic. I guess its possible to include both on A4 FPGAs and only one of them on A2 FPGAs.
... foft

01/21/2020

09:35 PM Revision 970 (repo2): Area based and polyphasic scaler implementations.

markw

FO 09:30 PM Feature #85: 720p support/1080i support

A weeks debugging later, this filter actually really works! foft

01/15/2020

FO 10:26 PM Feature #85: 720p support/1080i support

I have a polyphasic version working too, I think. So far I only gave it nearest neighbour coefficients. Rebuilding with Lanczos. foft

01/05/2020

FO 11:03 PM Feature #85: 720p support/1080i support

Forgot to mention 1080i working fine as well as 720p.
I was looking at the 3d modes too, but not sure what to use those for ;-) foft

FO 11:02 PM Feature #85: 720p support/1080i support

Plumbed in a 4x4 block of pixels so I can try out polyphasic filters too.
For now its just using a 2x2 block with the area based scale, but got some vertical bug. Stripey!
Using 16KB of block ram now, which is a bit wasteful. 360*4... foft