There's like 10 glue functions you have to write to do things like initialize your platform, get input, begin the sound loop, call the main loop, and then something to switch buffers to the display. It takes a quite short amount of time to do. Id provides a set of null functions that you can use as a starting place and incrementally add in video support, input, sound, etc. They made it super easy to port.
I've been fiddling off and on making a tiny CM-2 computer model with all the blinking lights on the front panels. Inside it's an rpi zero 2, and I'm using some 1.5", 128x128 SPI RGB OLED displays instead of trying to make itty-bitty LED arrays. Long story short I decided I should be able to run quake and quake2 on the thing. It only took two days to put in enough code to have them running.
There's like 10 glue functions you have to write to do things like initialize your platform, get input, begin the sound loop, call the main loop, and then something to switch buffers to the display. It takes a quite short amount of time to do. Id provides a set of null functions that you can use as a starting place and incrementally add in video support, input, sound, etc. They made it super easy to port.
I've been fiddling off and on making a tiny CM-2 computer model with all the blinking lights on the front panels. Inside it's an rpi zero 2, and I'm using some 1.5", 128x128 SPI RGB OLED displays instead of trying to make itty-bitty LED arrays. Long story short I decided I should be able to run quake and quake2 on the thing. It only took two days to put in enough code to have them running.