The Fastest Way To Pass Java Bitmap Pixels To Jni

I'm trying to find the best/fastest way to pass a bitmap from java to JNI. Next is how I do this operation at the moment. Can this be improved, or is there any other faster way? vo

Solution 1:

The easiest way is to just call AndroidBitmap_lockPixels. So in the constructor of JNIBitmap you would do this:

void* bitmapPixels;
AndroidBitmap_lockPixels(env, bitmap, &bitmapPixels)

Then in the destructor you would do this:

AndroidBitmap_unlockPixels( env, bitmap);