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#import "UIDevice+MGLAdditions.h"
#include <sys/sysctl.h>
@implementation UIDevice (MGLAdditions)
- (NSString *)modelString {
char *typeSpecifier = "hw.machine";
size_t size;
sysctlbyname(typeSpecifier, NULL, &size, NULL, 0);
char *answer = malloc(size);
sysctlbyname(typeSpecifier, answer, &size, NULL, 0);
NSString *results = [NSString stringWithCString:answer encoding:NSUTF8StringEncoding];
free(answer);
return results;
}
- (BOOL)mgl_isLegacyDevice {
// This is a list of supported devices that cannot maintain a reasonable frame
// rate under typical load. For brevity, unsupported devices are not included.
NSSet *blacklist = [NSSet setWithObjects:
@"iPhone4", // iPhone 4s
@"iPhone5", // iPhone 5, 5c
@"iPhone6", // iPhone 5s
@"iPad2", // iPad 2, Mini
@"iPad3", // iPad 3
@"iPad4", // iPad Air, Mini 2, Mini 3
@"iPod5", // iPod Touch 5
nil
];
NSString *model = [self modelString];
for (NSString *blacklistedModel in blacklist) {
if ([model hasPrefix:[blacklistedModel stringByAppendingString:@","]]) {
return YES;
}
}
// TODO: Also handle simulator using something like `ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"]`.
return NO;
}
@end
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