This port is now abandoned.

I have made a new port as part of Retro-Go. Memory usage has been greatly improved and stuttering has been eliminated.
Retro-Go can be built with only DOOM enabled so there is no point in also maintaining this standalone port.

Description

This is an improvement of doom-ng-odroid-go which itself is an improvement of doom-odroid-go.

New features

Full sound support
Save games
Brightness controls
Volume controls
WAD selector on start
Mods support (Limited by available memory)
Cheats menu (Options -> Cheats)
Levels menu (Options -> Level Select)

Usage

Copy Doom-*.fw to your SD Card folder odroid/firmware and PRBOOM.WAD and DOOM.WAD to roms/doom. Power up the Odroid GO while holding B. Then flash Doom from the menu. You can add more than one WAD at a time, a prompt will be shown on power up.

Controls

Key	Action
A	Fire
B	Strafe
START	Action/Open doors
SELECT	Change weapon
VOLUME	Map
MENU	Menu
START+UP	Brightness up
START+DOWN	Brightness down
START+LEFT	Sound down
START+RIGHT	Sound up

To do / Known issues

Fix the random lags. It might be caused by SD card access on the shared bus.
Fix the memory allocation failures due to memory fragmentation (especially when switching levels)
Make it possible to delete savegames.
Add support for external DAC

Compilation

ESP-IDF 4.x

ESP-IDF version 4.0.1 or greater is required to compile the current code.

idf.py app
./tools/mkfw.py doom.fw "Doom" tile.raw 0 0 0 app build/doom-esp32.bin

ESP-IDF 3.3

Release 20190922 is the last one that can be built with ESP-IDF 3.3.
There is a zipped snapshot in the data folder, in case the git history gets lost.

./builddoom.sh