Module jni_bridge 

Kotlin JNI Bridge for Blinc

Provides JNI functions for embedding Blinc rendering into Kotlin/Java Android applications. This allows developers to use Blinc as a rendering engine within existing Android apps.

Usage from Kotlin

package com.blinc

import android.view.Surface

object BlincBridge {
    init {
        System.loadLibrary("blinc_platform_android")
    }

    external fun nativeInit(surface: Surface, width: Int, height: Int, density: Float): Long
    external fun nativeRenderFrame(handle: Long)
    external fun nativeOnTouch(handle: Long, action: Int, x: Float, y: Float): Boolean
    external fun nativeResize(handle: Long, width: Int, height: Int)
    external fun nativeDestroy(handle: Long)
}

Example Usage

class BlincSurfaceView(context: Context) : SurfaceView(context), SurfaceHolder.Callback {
    private var blincHandle: Long = 0

    init {
        holder.addCallback(this)
    }

    override fun surfaceCreated(holder: SurfaceHolder) {
        val metrics = resources.displayMetrics
        blincHandle = BlincBridge.nativeInit(
            holder.surface,
            holder.surfaceFrame.width(),
            holder.surfaceFrame.height(),
            metrics.density
        )
    }

    override fun surfaceChanged(holder: SurfaceHolder, format: Int, width: Int, height: Int) {
        if (blincHandle != 0L) {
            BlincBridge.nativeResize(blincHandle, width, height)
        }
    }

    override fun surfaceDestroyed(holder: SurfaceHolder) {
        if (blincHandle != 0L) {
            BlincBridge.nativeDestroy(blincHandle)
            blincHandle = 0
        }
    }

    fun render() {
        if (blincHandle != 0L) {
            BlincBridge.nativeRenderFrame(blincHandle)
        }
    }
}

Functions

jni_bridge_placeholder