Stream an image in JavaFX-CodePudding

I'm writting a 3D renderer in java and I want to display a stream of images in JavaFX. I have this function that reads a int array and converts it to an image view, the problem is that it takes 35 to 40ms to execute...

public static ImageView getImage(int[] imageBuffer, int height, int width) {

        WritableImage wr = new WritableImage(width, height);
        PixelWriter pw = wr.getPixelWriter();


        for(int i = 0; i < height;   i)
            for(int j = 0 ; j < width;   j)
                pw.setArgb(j, height-1-i, imageBuffer[i*width j]);

        return new ImageView(wr);
    }

Is there a way I could optimize it?

PS : the (height-1-i) is because the buffer is written upside down (it will be changed)

I thought I could probably pass the image view as an argument and directly writting to it but the only possibility to change it's display is via setImage()?

CodePudding user response：

This can be done by using the new WritableImage of JavaFX with support for Buffers. With that I was able to shuffle 4K video data into this image in real-time. I have a few examples of how to do that here: https://github.com/mipastgt/JFXToolsAndDemos (VLCJFXVideoPlayer, AWTImage, NativeRenderingCanvas)