Edit: CUDA 6 introduces Unified Memory, which makes this “deep copy” problem a lot easier. See this post for more details. Don’t forget that you can pass structures by value to kernels. This code works: // pass struct by value (may not be efficient for complex structures) __global__ void kernel2(StructA in) { in.arr[threadIdx.x] *= 2; … Read more
There are quite a few ways to check if a device is an iPad. This is my favorite way to check whether the device is in fact an iPad: if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad ) { return YES; /* Device is iPad */ } The way I use it #define IDIOM UI_USER_INTERFACE_IDIOM() #define IPAD UIUserInterfaceIdiomPad … Read more
I know this answer is coming 3 years late but none of the other answers are indeed 100% correct. If you would like to detect if the user is on ANY form of mobile device (Android, iOS, BlackBerry, Windows Phone, Kindle, etc.), then you can use the following code: if (/Android|webOS|iPhone|iPad|iPod|BlackBerry|BB|PlayBook|IEMobile|Windows Phone|Kindle|Silk|Opera Mini/i.test(navigator.userAgent)) { // … Read more
I use the following code to get the full device name. It gets model and manufacturer strings and concatenates them unless model string already contains manufacturer name (on some phones it does): public String getDeviceName() { String manufacturer = Build.MANUFACTURER; String model = Build.MODEL; if (model.toLowerCase().startsWith(manufacturer.toLowerCase())) { return capitalize(model); } else { return capitalize(manufacturer) + … Read more
You can get the device model number using uname from sys/utsname.h. For example: #import <sys/utsname.h> NSString* machineName() { struct utsname systemInfo; uname(&systemInfo); return [NSString stringWithCString:systemInfo.machine encoding:NSUTF8StringEncoding]; } The result should be: @”i386″ on the simulator @”iPod1,1″ on iPod Touch @”iPod2,1″ on iPod Touch Second Generation @”iPod3,1″ on iPod Touch Third Generation @”iPod4,1″ on iPod Touch … Read more
I recently had trouble with this, and regardless of what I did(restart adb, edit adb_usb.ini, restart computer+device+swap usb port, reinstall studio etc. etc.) I just couldnt get it to work, and could not even detect my device using ‘adb devices’. Finally after about 2 hours of googling and testing, someone suggested switching to PTP instead … Read more
First of all, you shouldn’t rebuild all your views to fit a new screen, nor use different views for different screen sizes. Use the auto-resizing capabilities of iOS, so your views can adjust, and adapt any screen size. That’s not very hard, read some documentation about that. It will save you a lot of time. … Read more
I made this “pure Swift” extension on UIDevice. If you are looking for a more elegant solution you can use my ยต-framework DeviceKit published on GitHub (also available via CocoaPods, Carthage and Swift Package Manager). Here’s the code: import UIKit public extension UIDevice { static let modelName: String = { var systemInfo = utsname() uname(&systemInfo) … Read more