Re: OpenGL error on first rendering in -[QCOpenGLContext willPushRenderState:]

• Subject: Re: OpenGL error on first rendering in -[QCOpenGLContext willPushRenderState:]
• From: Pierre-Olivier Latour <email@hidden>
• Date: Sun, 25 Nov 2007 19:30:50 -0800
• Delivered-to: email@hidden
• Delivered-to: email@hidden

On Nov 22, 2007, at 1:56 AM, Raphael Sebbe wrote:

For reference,

I managed to get the app working without GC until the first few
renderings (crash would occur just after), then could break on error
in OpenGL profiler.

The error is due to this:
glTexParameteri(GL_TEXTURE_RECTANGLE_EXT, GL_TEXTURE_WRAP_S, GL_REPEAT)

which apparently is a bad combination (yet it does work, texture
repeating), detected by QC. I changed it to GL_TEXTURE_2D.

Thanks,

Raphael

On Nov 18, 2007 7:39 PM, Raphael Sebbe <email@hidden> wrote:

Hi,

Well, this is not an option for me, OpenGL Profiler is broken for
garbage collected apps, mine won't work without GC. Do you have
another option to track that error ?

Thank you

Raphael

On Nov 16, 2007 5:50 PM, Pierre-Olivier Latour <email@hidden> wrote:

Run your app under OpenGL Profiler with "break on error" and you will see
which call fails

Make sure you are not doing invalid GL stuff before calling QC

On Nov 16, 2007, at 2:17 AM, Raphael Sebbe@Google wrote:

Hi,

I've set up an OpenGL view in which I render using a QCRenderer. The first
time I render it, I get this error in the log and nothing renders:
*** OpenGL error 0x0500 (invalid enumerant) in function "- [QCOpenGLContext
willPushRenderState:]"

There are no more errors from the second rendering and after.

This is a pretty simple composition taking CIImage and NSBitmapImageRep as
inputs.

Any advice on this ?

Thanks,

Raphael _______________________________________________
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Technologist - Apple, Inc.

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