GitHub - dobkeratops/android_rust_gl: minimal rust openGLES/shader sample running on android, should also build& run on linux desktop

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minimal rust openGLES/shader sample running on android, should also build& run on linux desktop

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Name		Name	Last commit message	Last commit date
Latest commit History 142 Commits
android		android
bsp		bsp
data		data
experiment/parallel		experiment/parallel
r3d		r3d
LICENSE.TXT		LICENSE.TXT
README		README
bsprender.rs		bsprender.rs
everywhere.rs		everywhere.rs
flymode.rs		flymode.rs
hellocube.rs		hellocube.rs
main.rs		main.rs
makefile		makefile
r3dtest.rs		r3dtest.rs
rustwin.rs		rustwin.rs
shadertest.rs		shadertest.rs

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Minimal Rust Android OpenGL ES sample 

Displays spinning tori in a lisajous curve; derived from NDK "native-activity" sample. creates an opengl 2 context. Uses a C stub, which calls rust_android_init  .. rust_android_render;  these are #[no_mangle] extern "C" functions defined in main.rs, 
its just a quick sample, and pretty messy, but minimal.

To run: 
cd android
[1] android update project --target "android-19" --name NativeActivity  --subprojects --path .
[2] make 

.. that should compile and deploy the project.
make in the project root should run the same rendering code on desktop.

android/jni/desktop_emu_gl.c  provides empty stub functions for linking.

the C mainloop in jni/main.c calls Rust entrypoints: main.rs app_create() app_display_create() app_render() app_display_destroy() app_destroy()

'shadertest.rs' implements a 'Screen' trait with update/render functions called by these.