Hello,


Haven t found any forum for that so just try here.

I want to get the bitmap image from a local JPG or TIFF to use as an OpenGL texture in C++ on the iPhone.
So normally the image is loaded with a UIImage or a UIImageView from the UIKit but I don t know how to get the bitmap buffer to create an OpenGL Texture.

Thanks for any help, if any

Hey,

I did exactly that. I used a UIImage to load something on a CGImageRef:

UIImage* image = [UIImage imageNamed: fileName];
CGImageRef inImage = image.imageRef;

Then just create a context and use CGBitmapContextGetData to grab the raw data. THen it's just a matter of using glTexImage2D to create the GL texture.

Works a treat for me!

Cheers,
Max