Mac OS X (tested: 10.15)
XCode (tested: 11.7.0)
JDK 8 installed
gradle to build Java part.
cmake, wget, ldid, dpkg and fakeroot to package. Run in this directory

# Only run if you haven't installed JDK 8
brew install adoptopenjdk8

# Install required packages
brew install cmake wget ldid dpkg fakeroot gradle

# Give exec perm
chmod 755 *.sh

# Build natives part
./build_natives.sh

# Build java part
./build_javaapp.sh

# Sign with entitlements and package
./build_package.sh

How can it work?

Use OpenJDK 16 from Procursus to get real Java environment.
Use MetalANGLE for OpenGL ES -> Metal translator.
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: use @kcat's openal-soft
Input pipe implementation

Mouse touch implementation

Does it work? Partial.
Currently, tested that 1.14+ works up to menu screen.

Known issues

Camera position will be jumped to random location on first time touch.
1.12.2 and below only render a tiny panorama at bottom left corner.
Other versions will crash for various reasons: Narrator crash, etc...
It may crash sometimes, but try launch again until you get it works.

Installing OpenJDK 16

For Chimera/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 @lunixbochs @ptitSeb: MIT License.
MetalANGLE by @kakashidinho and ANGLE team: BSD License 2.0.
OpenJDK 16 ported to iOS by @Diatrus: GNU GPLv2 License.
LWJGL3: BSD-3 License.
LWJGLX (LWJGL2 API compatibility layer for LWJGL3): unknown license.

README.md

PojavLauncher_iOS

Navigation

Introduction

Building