CoreAnimation: image is too large
CoreAnimation: image is too large
- Subject: CoreAnimation: image is too large
- From: Gabriel Zachmann <email@hidden>
- Date: Thu, 1 Oct 2009 22:55:56 +0200
I am using Core Animation to display some images.
Is there an easy way to find out the following information?
1.
Query the properties GL_MAX_TEXTURE_SIZE and
GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB from the current OpenGL context that
Core Animation
must have acquired somewhere.
Well, it would suffice if I could get CA's current OpenGL context.
2. Find out the dimensions of an image on the disk, *before* actually
loading it into memory.
The reason is that I occasionally get an error message saying
"CoreAnimation: X by Y image is too large for GPU, ignoring".
So I'd rather like my app to not load these images in the first place.
If #1 is not easily achievable, then I guess I could hard-wire the
size to 2048x2048 for the moment. It's just not elegant.
I understand there is also a CATiledLayer, but if I skip a few images
it doesn't really hurt.
Best regards,
Gabriel.
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