Colour depth upgrade?

[ezekiel000]

I remember a while back that someone asked if Zork Nemesis and Zork Grand Inquisitor would be incorporated in the future, which is something I would like to see but I understand that this sort of thing needs someone willing to work on them.

But it was also brought up that for these to be implemented ScummVM would need to support 16bit colour, my question is how hard is that to do? I don't know the inner workings of the colour system in ScummVM but what would need to be done to support 16bit colour?

I bring this up again because I saw that there is a Myst & Riven engine for ScummVM in the works which would benefit from this as Riven and the Masterpiece version of Myst are 16bit.

Btw what colour depth is Curse of the Monkey Island?

[clone2727]

But it was also brought up that for these to be implemented ScummVM would need to support 16bit colour, my question is how hard is that to do? I don't know the inner workings of the colour system in ScummVM but what would need to be done to support 16bit colour?

This describes the basic task. I tried working something out over the summer to support 32bpp and a 32bpp overlay. I got the basic stuff working (1x scaler) but I gave up on it (partly because of time, partly because I wiped out my entire config file by accident when it segfaulted ). If you're interested, I could try to find a patch for you from it. Also, a while back, DrMcCoy implemented a 32bpp surface for the SDL backend which also might be a good place to start (although, I think the patch is quite outdated).

I bring this up again because I saw that there is a Myst & Riven engine for ScummVM in the works which would benefit from this as Riven and the Masterpiece version of Myst are 16bit.

Riven's images are 8bpp, but the palettes between the images do not match, so I may have to wait for 24bpp support or try remapping some of the images. Myst ME uses mostly 24bpp jpeg's, some pict's, and some 24bpp bmp's.

Btw what colour depth is Curse of the Monkey Island?

8bpp

[ezekiel000]

Thanks for the links that explained things. I didn't realise it was on the long to do list.