iPhone SDK - CGBitmapContextCreate
- by nax_
Hi,
I would like to create an image of my own. I already know its width (320*2 = 640) and height (427).
So I have some raw data :
unsigned char *rawImg = malloc(height * width * 4 *2 );
Then, I will fill it :)
Then, I have to do something like that to get a bitmap and return a (UIImage *) :
ctx = CGBitmapContextCreate(rawImg,width*2,height,8,
???,
???,
kCGImageAlphaPremultipliedLast);
UIImage * imgFinal = [UIImage imageWithCGImage:CGBitmapContextCreateImage(ctx)];
CGContextRelease(ctx);
return imgFinal;
But I don't know how to create my context ctx, as you can see with the "???", even tough I read the documentation...
Please help !
Thanks :)
