How to display an arbitrary portion of live-preview magnified as MF mode does ? - General Discussion and Assistance - CHDK Forum
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How to display an arbitrary portion of live-preview magnified as MF mode does ?

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Offline nirschi

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How to display an arbitrary portion of live-preview magnified as MF mode does ?
« on: 29 / January / 2008, 19:09:39 »
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Thanks in advance.

nirschi
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Offline jeff666

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Re: How to display an arbitrary portion of live-preview magnified as MF mode doe
« Reply #1 on: 30 / January / 2008, 08:21:27 »
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Offline nirschi

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Re: How to display an arbitrary portion of live-preview magnified as MF mode doe
« Reply #2 on: 30 / January / 2008, 11:31:09 »
It is useful, thanks, but only as a last resort.

vid_get_viewport_fb() is already scaled down to LCD resolution, so magnification means pixel blockiness.


I believe there are two independed image stream engines in DIGICII / III:

The first scales the live image down to be viewed on the LCD.
The second one does either drive the TV output - or the magnified picture-in-picture MF point zoom overlay.

I want to control the second one!
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