Progressive display for PAL (50Hz 576p)

[Former user]

Original issue 348 created by vaguerant on 2013-07-09T06:04:23.000Z:

The Wii and GameCube are both capable of 576p display, it's just never been approved for commercial use for whatever reason. For those who prefer progressive display, NTSC games obviously look exactly as they'd hope, while PAL games have to be run either interlaced or at a 60Hz refresh rate. I'd like to request that 576p display be added, which would obviously also require the lock on "TV Mode" when set to progressive to be lifted.

This is obviously a niche request with a low priority. For the few cases where a PAL game is preferred, however (e.g. the recently released Time Trax prototype is apparently optimised for PAL), I do feel like this would be quite an improvement, at least for some mystery subset of users.

If you'd like to see some reference code, Extrems seems to have included 576p support in several of his homebrews, such as OpenTTD [ http://wiibrew.org/wiki/OpenTTD ] and Not64 [ http://www.gc-forever.com/forums/viewtopic.php?f=9&t=842 ]. He also added it to Swiss, the GameCube utility [ https://code.google.com/p/swiss-gc/ ]. Sorry about the linkspam.

There is the potential issue of users enabling this function, not realising that their TVs don't support it. Hopefully the impact of this would be minor, however, since the genplus-gx interface should still be running in a resolution they do support.

[Former user]

Comment # 1 originally posted by ekeeke31 on 2013-07-09T11:03:28.000Z:

It shouldn't be complicated to add support for 50hz progressive mode, it was added in libogc some time ago so really, it's just a matter of calling the video mode configuration for it.

The reason it was not added in the emulator is that i have no way to confirm if it is correctly working (my old Wii now only outputs shitty composite, rgb and component output does not work) and i suspected it was not supported in official software for a good reason.

Now, if someone can confirm that 50hz progressive (576p) works on both PAL Gamecube and Wii, it could indeed easy be added.

As for accidentally using it on TV that does not support it, i don't see the issue, it's the exact same problem as with 480p and is being handled by only allowing progressive modes if a component cable is detected.

[Former user]

Comment # 2 originally posted by ekeeke31 on 2013-07-11T21:31:07.000Z:

Added in r812

Please (someone) confirm it works as expected.

[Former user]

Comment # 3 originally posted by vaguerant on 2013-07-12T03:29:31.000Z:

I've been testing games for about an hour on my PAL Wii and can confirm everything seems to be working fine; essentially the exact same behavior as in 576i, but progressive. Spent some time with PAL games Megaman: The Wily Wars, Probotector and Snake Rattle 'n' Roll, all running and looking great here. Also tried switching between a variety of video modes without managing to break anything. I don't currently have a component cable for GameCube, hopefully someone can confirm the same there. Thanks.

[Former user]

Comment # 4 originally posted by ekeeke31 on 2013-07-12T15:09:18.000Z:

Ok thanks.