Add 'server/' from commit '800090542d91beae40bc81fc41b67ba61c47da77'

git-subtree-dir: server
git-subtree-mainline: 6a4054c15a
git-subtree-split: 800090542d

server/kordophone/Bridge/Operations/Utilities/MBIMImageUtils.m

@@ -0,0 +1,37 @@
+//
+//  MBIMImageUtils.m
+//  kordophoned
+//
+//  Created by James Magahern on 12/20/22.
+//  Copyright © 2022 James Magahern. All rights reserved.
+//
+
+#import "MBIMImageUtils.h"
+#import <ImageIO/ImageIO.h>
+
+NSData* MBIMCGImageJPEGRepresentation(CGImageRef imageRef)
+{
+    if (imageRef == NULL) return nil;
+    
+    NSNumber *const DPI = @72.0;
+    NSNumber *const compressionQuality = @0.9;
+    NSDictionary *properties = @{
+        (__bridge NSString *)kCGImagePropertyDPIWidth : DPI,
+        (__bridge NSString *)kCGImagePropertyDPIHeight : DPI,
+        (__bridge NSString *)kCGImageDestinationLossyCompressionQuality : compressionQuality,
+    };
+    
+    bool success = false;
+    NSMutableData *data = [NSMutableData data];
+    if (data) {
+        CGImageDestinationRef imageDestination = CGImageDestinationCreateWithData((CFMutableDataRef)data, CFSTR("public.jpeg"), 1/*count*/, NULL/*options*/);
+        if (imageDestination != NULL) {
+            CGImageDestinationAddImage(imageDestination, imageRef, (__bridge CFDictionaryRef)properties);
+            success = CGImageDestinationFinalize(imageDestination);
+            CFRelease(imageDestination);
+        }
+    }
+
+    return success ? data : nil;
+}
+