Guide: run Minecraft at full speed on Rock 5B

ROCK 5 Series
5

It is expected that performance with Mesa is not yet as good as the blob driver.

It would be useful if you can install apitrace and upload a trace of Minecraft somewhere so that I can use it to optimise performance—note that gl4es should not be required for this.

Until I can improve performance, you may wish to play with the blob driver:

If you are using Wayland, you will need to compile https://gitlab.com/panfork/dri2to3.

You will also have to open the src/gl/loader.c file from gl4es and remove these two lines, then recompile and reinstall:

    if(!sanitizer)
        flags |= RTLD_DEEPBIND;

To actually download the blob driver is something like this:

mkdir -p ~/libmali/x11
cd ~/libmali/x11
wget https://github.com/JeffyCN/rockchip_mirrors/raw/libmali/lib/aarch64-linux-gnu/libmali-valhall-g610-g6p0-x11-gbm.so
ln -s libmali-valhall-g610-g6p0-x11-gbm.so libmali.so.1
for l in libEGL.so libEGL.so.1 libgbm.so.1 libGLESv2.so libGLESv2.so.2 libOpenCL.so.1; do ln -s libmali.so.1 $l; done

Then you would set these environment variables:

export LD_PRELOAD=~/dri2to3/build/libdri2to3.so LD_LIBRARY_PATH=/usr/lib/gl4es:~/libmali/x11

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