Fastest Way to display bitmaps
Fastest Way to display bitmaps
- Subject: Fastest Way to display bitmaps
- From: Jonathan Stocks <email@hidden>
- Date: Fri, 22 Mar 2002 17:20:55 -0800
Hello,
I am new to this list and very new to Cocoa programming. I was
wondering if I could get some advice? (I hope this topic is not done to
death)
I am looking for the "fastest" way to display bitmap data to a Cocoa
application. I am writing an application that is receiving "generic"
bitmap data (the data comes in many different formats) at a fairly high
rate, and would like to display it to the screen as fast as possible.
Currently, I am converting the data to a NSBitmapImageRep and using that
to draw to a custom NSView but, I am not sure if this is the best way to
do this. I appear to be having buffer problems. (i.e. the data seems
to be changing while in the middle of updating the screen). Is there a
delay from when calling [NSBitMapImageRep draw] to when it starts
displaying to the screen?
In OS 9, I used CopyBits(...) directly from a PixMap data type. This
seemed to work quite nicely. But I am not sure where to go for a Cocoa
application. I really just need some direction? I am still not quire
clear is it would be best to go towards using Quartz or if I should
stick with an object like NSBitMapImageRep or NSImage.
Any advice would be very appreciated!
Thanks,
Jon
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