Bug 3330 - OpenTK Library is not compatible with OpenTK 1.0 as claimed.
Summary: OpenTK Library is not compatible with OpenTK 1.0 as claimed.
Status: RESOLVED FIXED
Alias: None
Product: iOS
Classification: Xamarin
Component: Xamarin.iOS.dll ()
Version: 5.2
Hardware: Macintosh Mac OS
: --- normal
Target Milestone: Untriaged
Assignee: Rolf Bjarne Kvinge [MSFT]
URL:
Depends on:
Blocks:
 
Reported: 2012-02-09 14:36 UTC by Kris
Modified: 2012-02-27 18:34 UTC (History)
2 users (show)

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

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Status:
RESOLVED FIXED

Description Kris 2012-02-09 14:36:43 UTC
The OpenTK Library provided in Monotouch 5.2 IS NOT compatible with OpenTK 1.0 API.

Several Enumerations are missing, including

PixelStoreParameter, ActiveAttribType, ActiveUniformType, ShaderType, BufferTarget, BlendEquationMode...

The Monotouch OpenTK.Graphics.ES20.GL object typically expects the "All" enumeration as it's parameters

The Standard OpenTK 1.0 Same object uses the more strongly typed Enumerations in almost all cases.

Compare the two APIs here

(Xamarin here uses the weakly typed All enumeration)
http://iosapi.xamarin.com/?link=T%3aOpenTK.Graphics.ES20.GL%2fM

(OpenTK Standard uses strongly typed enumerations)
http://www.opentk.com/files/doc/class_open_t_k_1_1_graphics_1_1_e_s20_1_1_g_l.html

Fix:

Make the OpenTK.Graphics.ES20 namespace actually match the standard OpenTK 1.0 API exactly.
Comment 1 Kris 2012-02-09 22:01:26 UTC
If backwards compatibility is an issue, then I recommend overloading the existing methods with versions that take the strongly typed Enumerations as parameters.
Comment 2 Rolf Bjarne Kvinge [MSFT] 2012-02-27 18:20:12 UTC
Fixed (fea26173 master).

This will be included in the upcoming 5.3 beta - note that I've created a new OpenTK-1.0.dll assembly which contains the new (backwards incompatible) API.

OpenTK.dll will continue to exist, but with the old API.
Comment 3 Rolf Bjarne Kvinge [MSFT] 2012-02-27 18:34:03 UTC
Created attachment 1428 [details]
OpenTK-1.0.zip

I've attached the current OpenTK-1.0.dll if you want to try it out - just unzip and reference the dll in there from your project.