Post by CrownParkComputing in 1943 - Amiga A1200 RTG comments

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hdf boot themselves into rtg mode. i have the individual exe running in pimiga and they run fullscreen on their own

Can you just answer the question? Resolution and color depth. This is necessary information when releasing RTG game, so users can create a P96 screenmode for it.

CrownParkComputing3 days ago

There u go, UAE for the HDF and the standalone version

aardvark823 days ago

What im asking is, what is the P96 screenmode the game is requesting in AmigaOS.

CrownParkComputing3 days ago

#define RTG_MODE_ID 0x50FF1000UL

```

And the UAE config uses an 8-bit RTG screen:

```ini

gfx_width=864

gfx_height=486

gfx_colour_mode=32bit

gfxcard_type=ZorroIII

gfxcard_size=16

rtg_modes=0x3ffe

```

So the app opens a custom 8-bit Picasso96/uaegfx screen at `864x486`, using `BestModeID()` first, falling back to `0x50FF1000` if needed.

aardvark823 days ago (4 edits)

The "gfx_width=xxx" line is setting from the UAE config file which determines the emulator window/screen size.

The Amiga program knows nothing about the existance of these settings, so it makes zero sense that the Amiga app opens screenmode based on these parameters.

Also, I tried your UAE config+hdf setup, and it doesn't use RTG at all. It opens the game in AGA NTSC interlaced hires mode.

CrownParkComputing3 days ago

Interesting I have been battling this in AGS and iother RTG setups and thought had cracked it with the standalone HDF. Will do some more digging. if you wan to help test email me and i would appreciate your assistance.

itch.io

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