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How to use IJL1.5 to get a BOTTOM-UP uncompressed data?

Hello everybody, now I'm using IJL(Intel Jpeg Library)v1.5 to decode a jpeg file, and I need a BOTTOM-UP bitmap(i.e. uncompressed data). But by default, IJL1.5 will give me a TOP-DOWN bitmap. The IJL doc didn't mention if IJL can provide BOTTOM-UP bitmap. Does anybody can give me a certain answer? If the answer is Yes, how? Thx.

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