fastest image writing

[counterp]

ImageIO.write is dangerously slow and I guess that's because it's compressing the image to another format.

So how do I go about doing this, when size isn't a factor?

The fastest method of writing an image. Do I grab all pixels and write them?

[Riven]

TGA

it's basically a header + dump of the pixels

[counterp]

Is there a faster way of getting all the pixels or do I just have to use

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BufferedImage img = region.images[i]; int[] ARGB = new int[w * h]; img.getRGB(0, 0, w, h, ARGB, 0, w);

is there a way to avoid the integer array all together and write info directly to a byte array?

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[Riven]

about a zillion times faster:

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public static int[] accessRasterIntArray(BufferedImage src)    {       return ((DataBufferInt) src.getRaster().getDataBuffer()).getData();    }    public static byte[] accessRasterByteArray(BufferedImage src)    {       return ((DataBufferByte) src.getRaster().getDataBuffer()).getData();    }

[counterp]

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public static byte[] accessRasterByteArray(BufferedImage src) {    return ((DataBufferByte) src.getRaster().getDataBuffer()).getData(); }

I think that was exactly what I was looking for

thanks

[Riven]

btw: you can use BufferedImage().getType() to pick the correct backing DataBuffer

[counterp]

EDIT: Alright everything's working