Bug 16135 - CIImage includes "initWithCVImageBuffer:" constructor which is "not available on iOS"
Summary: CIImage includes "initWithCVImageBuffer:" constructor which is "not available...
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 7.0.4.x
Hardware: PC Mac OS
: --- minor
Target Milestone: 7.0.6
Assignee: Sebastien Pouliot
Depends on:
Reported: 2013-11-12 00:47 UTC by Brendan Zagaeski (Xamarin Team, assistant)
Modified: 2014-01-02 14:55 UTC (History)
4 users (show)

Is this bug a regression?: ---
Last known good build:

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Description Brendan Zagaeski (Xamarin Team, assistant) 2013-11-12 00:47:29 UTC
Similar to bug #1808

The CIImage class includes an unneeded constructor for the "initWithCVImageBuffer:" selector:
public CIImage (CVImageBuffer imageBuffer) : base (NSObjectFlag.Empty)

This selector is not present in iOS. For example, in Xcode attempting to compile an iOS project that calls this method, displays an error:
> 'initWithCVImageBuffer:' is unavailable: not available on iOS

This method appears in the following lines in the CIImage.h header file. Interestingly, there is no `#if !TARGET_OS_IPHONE` surrounding these lines.

> - (id)initWithCVImageBuffer:(CVImageBufferRef)imageBuffer __OSX_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_NA);
> - (id)initWithCVImageBuffer:(CVImageBufferRef)imageBuffer options:(NSDictionary *)dict __OSX_AVAILABLE_STARTING(__MAC_10_4, __IPHONE_NA);

Compare also the iOS documentation:
> https://developer.apple.com/library/ios/documentation/graphicsimaging/reference/QuartzCoreFramework/Classes/CIImage_Class/Reference/Reference.html

... to the OS X documentation:
> https://developer.apple.com/library/mac/documentation/graphicsimaging/reference/QuartzCoreFramework/Classes/CIImage_Class/Reference/Reference.html
Comment 1 Sebastien Pouliot 2013-11-12 08:41:39 UTC
You won't find any `#if !TARGET_OS_IPHONE` - that would be too chatty ;-)

The `__OSX_AVAILABLE_STARTING` macro handle this, e.g. it says that `__IPHONE_NA` which means the API is not available in any version of the iPhone SDK.

That looks like a mistake in the bindings - which our introspection tests should have spotted (I'll look why it did not).
Comment 2 Sebastien Pouliot 2013-11-12 09:22:23 UTC
Yes, the introspection tests only checked the methods, not the constructors. There's a few extra in there that I'll review. Good catch!
Comment 3 Sebastien Pouliot 2013-11-12 11:59:55 UTC
Fixed in maccore/master c115fb50cd3902c160a93e50a9861c5da2b5ec15
Comment 4 Brendan Zagaeski (Xamarin Team, assistant) 2013-11-12 12:23:25 UTC
Thanks for the quick fix!
Comment 5 PJ 2013-12-11 18:46:04 UTC
This fix is planned to be released with Xamarin.iOS 7.0.6, which should hit the beta channel before December 23rd.
Comment 6 Sadik Ali 2013-12-24 09:15:40 UTC
I have verified this issue, with stable and latest build and compare on both.
As per my observation as I checked that I am seeing code with current build "https://gist.github.com/saurabh360/9399003b2969166df3c2" as show in screen cast "http://www.screencast.com/t/uNgAxZ5a7U" while with stable builds I getting code "https://gist.github.com/saurabh360/7a98b480dde443302f74" as shown in screen cast "http://screencast.com/t/24dTEVTL" 

Checked With:
Stables build:
All Mac
XS 4.2.1 (build 1)
X iOs

Current Build:
All Mac
XS 4.2.3 (build 23)
X iOs

Please let me know is it correct behavior which I have followed or is there anything else which I have missed out to verify this issue.
Comment 7 PJ 2014-01-02 14:55:02 UTC
Looks good Sadik, marking as VERIFIED.