plugin.onnxruntime — Run ONNX models in Solar2D (iOS, Android, macOS, Windows)

[laboladoapp]

Hi everyone,

I’ve released plugin.onnxruntime, a native C plugin that brings https://onnxruntime.ai/ inference to Solar2D. Load and run any ONNX model directly in your app — style transfer, image classification, text-to-speech, or any other ML model exported to ONNX format.

GitHub: GitHub - labolado/solar2d-plugin-onnxruntime · GitHub

Features

• Cross-platform: iOS (with CoreML acceleration), Android, macOS Simulator, Windows Simulator*
• Simple API: ort.load(path) → session:run(inputs) → done
• Flexible I/O: Lua tables or binary strings for tensor data, supports float32 and int64

*Windows Simulator build is included but has not been tested on a real Windows machine. Feedback welcome.

Quick Example

  local ort = require("plugin.onnxruntime")

  local session = ort.load(system.pathForFile("model.onnx",
  system.ResourceDirectory))
  local output = session:run({
      input = { dims = {1, 3, 224, 224}, data = imagePixels }
  })
  print(output.output1.data[1])
  session:close()

Demo App

The included example demonstrates:

• Style Transfer (Candy / Mosaic) — transform photos using neural style models
• Text-to-Speech — synthesize speech from phoneme tokens
  
  

Tested on iPhone 17 Pro Max (iOS), Huawei ANA-AN00 (Android), and
macOS Simulator.

[luantiang]

Thank you for the plugin. I test run the “main.lua” in your “example” folder on my Windows PC Simulator. It results in an error below,

error loading module 'plugin_onnxruntime' from file 'C:\Users\xxx\AppData\Roaming\Corona Labs\Corona Simulator\Plugins\plugin_onnxruntime.dll':
%1 is not a valid Win32 application.

What should be my next step? Thank you.

PS> Verified that both “onnxruntime.dll” and “plugin_onnxruntime.dll” are indeed in my plugins folder.