# Install required packages
brew install ldid dpkg fakeroot gradle

# Build natives part
bash build_natives.sh

# Build java part
bash build_javaapp.sh

# Sign with entitlements and package
bash build_package.sh

How can it work?

Use OpenJDK 16 from Procursus to get real Java environment.
Use GL4ES for OpenGL -> OpenGL ES translator.
Use our LWJGL3 iOS port.
Use same launch method as PojavLauncher Android.

Current status

Java Runtime Environment: OpenJDK 16.
LWJGL3 iOS port: works
OpenGL: GL4ES
Did Minecraft recognize OpenGL?
OpenAL: not included yet, maybe use iOS built-in OpenAL?
Input pipe implementation
Does it work? Partial.
Currently, only rd-132211 (the oldest Minecraft version :V) fully works.
1.6.x only render a tiny panorama at bottom left corner.
1.7.2 to 1.12.2 will crash because of framebuffer.
1.13+ will crash for various reasons: missing LWJGL JNI methods, missing OpenAL, Narrator crash, etc...
It may crash sometimes, but try launch again until you get it works.

Installing OpenJDK 16

Download openjdk-16-jre • Procursus .deb file (~40mb).

For Odyssey bootstrap

Add Procursus repository (https://apt.procurs.us).
Find and install java-16-openjdk.

For other jailbreak bootstrap

Download openjdk-16-jre.deb.
Install and open Filza File manager.
Go to where the .deb file downloaded.
Open it and press Install.
If everything fine, it will ends up with Setting up ....

Want a try or debug?

Minecraft home directory: /var/mobile/Documents/minecraft.
Select a version: edit /var/mobile/Documents/minecraft/config_ver.txt, put to Minecraft version want to start.

License

PojavLauncher is licensed under GNU GPLv3.

Contributing

Contributions are welcome! We welcome any type of contribution, not only code. Any code change should be submitted as a pull request. The description should explain what the code does and give steps to execute it.

Credits & Third party components and their licenses

Boardwalk (JVM Launcher): Unknown License/Apache License 2.0 or GNU GPLv2.
GL4ES by @ptitSeb: MIT License.
OpenJDK 16 porter to iOS by @Diatrus: GNU GPLv2 License.
LWJGL3: BSD-3 License.
LWJGLX (LWJGL2 API compatibility layer for LWJGL3): unknown license.

README.md

PojavLauncher_iOS

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