Thread safe?
Thread safe?
- Subject: Thread safe?
- From: Trygve Inda <email@hidden>
- Date: Sat, 29 Mar 2008 13:44:56 +0000
- Thread-topic: Thread safe?
I am finding it hard to determine in many cases exactly what is thread safe
as this is not complete:
http://developer.apple.com/documentation/Cocoa/Conceptual/Multithreading/Thr
eadSafetySummary/chapter_950_section_2.html
Can I call the following from a thread?
segImageRep = [[NSBitmapImageRep alloc] initWithBitmapDataPlanes:NULL
pixelsWide:100
pixelsHigh:100
bitsPerSample:8
samplesPerPixel:4
hasAlpha:YES
isPlanar:NO
colorSpaceName:NSDeviceRGBColorSpace
bitmapFormat:NSAlphaFirstBitmapFormat
bytesPerRow:100 * 4
bitsPerPixel:32];
segBaseAddr = [segImageRep bitmapData];
[segImageRep dealloc];
How about:
NSImage * image = [[[NSImage alloc] initWithContentsOfFile:path]
autorelease];
[NSGraphicsContext saveGraphicsState];
[NSGraphicsContext setCurrentContext:[NSGraphicsContext
graphicsContextWithBitmapImageRep:segImageRep]];
[image drawInRect:NSMakeRect(0, 0, [image size].width, [image
size].height) fromRect:NSMakeRect(0, 0, [image size].width, [image
size].height) operation:NSCompositeCopy fraction:1.0];
[NSGraphicsContext restoreGraphicsState];
I am trying to eliminate as much as possible calls to
detachNewThreadSelector since I can only pass these methods a single object.
Thanks,
Trygve
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