android_rust_gl

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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.