Very slow with TRILINEAR and ANISOTROPIC_2X filters

In sio2 default settings for filters are (sio2Init)

sio2->tfilter =SIO2_IMAGE_TRILINEAR;
sio2->afilter = SIO2_IMAGE_ANISOTROPIC_2X;

it's very slow for me

sio2->tfilter = SIO2_IMAGE_LINEAR; //SIO2_IMAGE_TRILINEAR;
sio2->afilter = SIO2_IMAGE_ISOTROPIC; //SIO2_IMAGE_ANISOTROPIC_2X;

I added this lines after sio2Init, and now it's ok.

Are you using a first generation device or 2nd generation?

I'm using first generation device.

Anisotropic 2X is not supported on first generation, the reason why its slow its probably because you fallback on software rendering... or got a s!@t load of GL_ERROR on the console

Cheers,

thanks,
i can add some code for testing iphone hardware version, and turn off filters if it's running on first generation iphone.

exactly

If anyone is looking for how to do this, I found this at ArsTechnica.

Code:

/*
 Platforms
 iPhone1,1 -> iPhone 1G
 iPhone1,2 -> iPhone 3G 
 iPod1,1  -> iPod touch 1G 
 iPod2,1  -> iPod touch 2G 
*/

   size_t size; 
   sysctlbyname("hw.machine", NULL, &size, NULL, 0); 
   char *machine = malloc(size); 
   sysctlbyname("hw.machine", machine, &size, NULL, 0); 


   NSString *platform = [NSString stringWithCString:machine]; 
   NSLog( @"platform    %@\n\n", platform);


   free(machine);


added

tks!