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iphoneframebufferpixeldemo-effects

Pushing pixels on the iPhone

What's the fastest way to get a framebuffer and render to in software on the iPhone?

Basically getting into a mode 13h style thing going so I can make some effects? :)

Solution

  • You need to create a CGImageContext, in a bitmap format that you can directly manipulate. Then, you can draw that image on the screen, use it as a GL texture, or whatever.

    Pretty simple stuff - check the Core Graphics documentation. I don't think there's a good way to get actual raw frameBuffer access, but that's probably not what you really want, anyway.