Skip to content

Instantly share code, notes, and snippets.

@rock88

rock88/gist:31a5cb3bae89ed07ae43

Last active June 28, 2018 02:01
Show Gist options
  • Save rock88/31a5cb3bae89ed07ae43 to your computer and use it in GitHub Desktop.
Save rock88/31a5cb3bae89ed07ae43 to your computer and use it in GitHub Desktop.
Download ZIP
Pixel formats supported for bitmap graphics contexts
Raw
gistfile1.md

From https://developer.apple.com/library/mac/documentation/GraphicsImaging/Conceptual/drawingwithquartz2d/dq_context/dq_context.html#//apple_ref/doc/uid/TP30001066-CH203-BCIBHHBB

CS Pixel format and bitmap information constants Availability
Gray 8 bpp, 8 bpc, kCGImageAlphaNone Mac OS X, iOS
Gray 8 bpp, 8 bpc, kCGImageAlphaOnly Mac OS X, iOS
Gray 16 bpp, 16 bpc, kCGImageAlphaNone Mac OS X
Gray 32 bpp, 32 bpc, kCGImageAlphaNone OR kCGBitmapFloatComponents Mac OS X
RGB 16 bpp, 5 bpc, kCGImageAlphaNoneSkipFirst Mac OS X, iOS
RGB 32 bpp, 8 bpc, kCGImageAlphaNoneSkipFirst Mac OS X, iOS
RGB 32 bpp, 8 bpc, kCGImageAlphaNoneSkipLast Mac OS X, iOS
RGB 32 bpp, 8 bpc, kCGImageAlphaPremultipliedFirst Mac OS X, iOS
RGB 32 bpp, 8 bpc, kCGImageAlphaPremultipliedLast Mac OS X, iOS
RGB 64 bpp, 16 bpc, kCGImageAlphaPremultipliedLast Mac OS X
RGB 64 bpp, 16 bpc, kCGImageAlphaNoneSkipLast Mac OS X
RGB 128 bpp, 32 bpc, kCGImageAlphaNoneSkipLast OR kCGBitmapFloatComponents Mac OS X
RGB 128 bpp, 32 bpc, kCGImageAlphaPremultipliedLast OR kCGBitmapFloatComponents Mac OS X
CMYK 32 bpp, 8 bpc, kCGImageAlphaNone Mac OS X
CMYK 64 bpp, 16 bpc, kCGImageAlphaNone Mac OS X
CMYK 128 bpp, 32 bpc, kCGImageAlphaNone OR kCGBitmapFloatComponents Mac OS X
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment