Bug 3784 - [CoreImage] Checkerboard Generator crashes with a SIGSEGV
Summary: [CoreImage] Checkerboard Generator crashes with a SIGSEGV
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 5.2
Hardware: PC Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Miguel de Icaza [MSFT]
Depends on:
Reported: 2012-03-07 11:38 UTC by Eric Beisecker
Modified: 2012-03-07 18:17 UTC (History)
1 user (show)

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

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Description Eric Beisecker 2012-03-07 11:38:24 UTC
The Checkboard Generator crashes when used.

Sample Code:

public CIImage CheckerboardGenerator ()
	// Color 1 
	var c0 = new CIColor (new CGColor (0xFF, 0x0, 0x0, 0x0)); // Red
	var c1 = new CIColor (new CGColor (0x00, 0XFF, 0x0, 0x0)); // Green
	var checker = new CICheckerboardGenerator ()
		Color0 = c0,
		Color1 = c1,
		Center = new CIVector (new float[] { 10 , 10 }), // Default [80 80]
		Sharpness = 1F // Default 1
	return checker.OutputImage;


  at (wrapper managed-to-native) MonoTouch.ObjCRuntime.Messaging.void_objc_msgSend (intptr,intptr) <IL 0x00024, 0xffffffff>
  at MonoTouch.Foundation.NSObject.InitializeObject (bool) [0x00039] in /Developer/MonoTouch/Source/monotouch/src/Foundation/NSObject.cs:128
  at MonoTouch.Foundation.NSObject..ctor (intptr,bool) [0x0000d] in /Developer/MonoTouch/Source/monotouch/src/Foundation/NSObject.cs:63
  at MonoTouch.Foundation.NSObject..ctor (intptr) <IL 0x00003, 0x00017>
  at MonoTouch.CoreImage.CIVector..ctor (single[]) <IL 0x00000, 0x00023>
  at coreimage.AppDelegate.CheckerboardGenerator () [0x0003e] in /Users/ebeisecker/Git/monotouch-samples/CoreImage/AppDelegate.cs:953
  at coreimage.AppDelegate.Demo (coreimage.AppDelegate/ImageFilter) [0x00023] in /Users/ebeisecker/Git/monotouch-samples/CoreImage/AppDelegate.cs:130
  at coreimage.AppDelegate.<FinishedLaunching>m__5 (MonoTouch.Dialog.RootElement) [0x00000] in /Users/ebeisecker/Git/monotouch-samples/CoreImage/AppDelegate.cs:43
  at MonoTouch.Dialog.RootElement.MakeViewController () [0x0000b] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/Elements.cs:2716
  at MonoTouch.Dialog.RootElement.Selected (MonoTouch.Dialog.DialogViewController,MonoTouch.UIKit.UITableView,MonoTouch.Foundation.NSIndexPath) [0x00008] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/Elements.cs:2726
  at MonoTouch.Dialog.DialogViewController.Selected (MonoTouch.Foundation.NSIndexPath) [0x00029] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/DialogViewController.cs:518
  at MonoTouch.Dialog.DialogViewController/Source.RowSelected (MonoTouch.UIKit.UITableView,MonoTouch.Foundation.NSIndexPath) [0x00019] in /Developer/MonoTouch/Source/MonoTouch.Dialog/MonoTouch.Dialog/DialogViewController.cs:364
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void__this___object_object (object,intptr,intptr,intptr) <IL 0x0005a, 0xffffffff>
  at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication.UIApplicationMain (int,string[],intptr,intptr) <IL 0x0009f, 0xffffffff>
  at MonoTouch.UIKit.UIApplication.Main (string[],string,string) [0x00042] in /Developer/MonoTouch/Source/monotouch/src/UIKit/UIApplication.cs:29
  at coreimage.Application.Main (string[]) [0x0000a] in /Users/ebeisecker/Git/monotouch-samples/CoreImage/Main.cs:18
  at (wrapper runtime-invoke) <Module>.runtime_invoke_void_object (object,intptr,intptr,intptr) <IL 0x00050, 0xffffffff>
Comment 1 Miguel de Icaza [MSFT] 2012-03-07 18:17:34 UTC
Fixed the crash