YUV to ARGB Bitmap using Renderscript

yuv_to_rgb.3.java

static Bitmap yuv420ToBitmap(Image image, Context context) {
    RenderScript rs = RenderScript.create(context);
    ScriptIntrinsicYuvToRGB script = ScriptIntrinsicYuvToRGB.create(
            rs, Element.U8_4(rs));

    // Refer the logic in a section below on how to convert a YUV_420_888 image
    // to single channel flat 1D array. For sake of this example I'll abstract it
    // as a method.
    byte[] yuvByteArray = yuv420ToByteArray(image);

    Type.Builder yuvType = new Type.Builder(rs, Element.U8(rs))
            .setX(yuvByteArray.length);
    Allocation in = Allocation.createTyped(
            rs, yuvType.create(), Allocation.USAGE_SCRIPT);

    Type.Builder rgbaType = new Type.Builder(rs, Element.RGBA_8888(rs))
            .setX(image.getWidth())
            .setY(image.getHeight());
    Allocation out = Allocation.createTyped(
        rs, rgbaType.create(), Allocation.USAGE_SCRIPT);

    // The allocations above "should" be cached if you are going to perform
    // repeated conversion of YUV_420_888 to Bitmap.
    in.copyFrom(yuvByteArray);
    script.setInput(in);
    script.forEach(out);

    Bitmap bitmap = Bitmap.createBitmap(
            image.getWidth(), image.getHeight(), Config.ARGB_8888);
    out.copyTo(bitmap);
    return bitmap;
}

How yuv420ToByteArray() should be ?

Where is the yuv420ToByteArray?

Use logic here [1] to convert a YUV Image to byte[].

1. https://blog.minhazav.dev/how-to-convert-yuv-420-sp-android.media.Image-to-Bitmap-or-jpeg/#how-to-convert-yuv_420_888-image-to-yuvimage

@mebjas Thanks, the snippet you pointed to is toYuvImage which converts a Media.Image into YuvImage. Wherever you grabbed the snippet above (and it's also in the article I found earlier) - could you open up that source repository, search for that specific function and add that to the Gist too?