151 lines
4.7 KiB
Plaintext
151 lines
4.7 KiB
Plaintext
#include <errno.h>
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#include <substrate.h>
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#include <rfb/rfb.h>
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#import <notify.h>
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#import <UIKit/UIKit.h>
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#import <rootless.h>
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#undef NSLog
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#define kSettingsPath @"/var/mobile/Library/Preferences/com.cosmosgenius.screendump.plist"
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extern "C" UIImage* _UICreateScreenUIImage();
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static BOOL isEnabled;
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static BOOL isBlackScreen;
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@interface CapturerScreen : NSObject
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- (void)start;
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@end
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@implementation CapturerScreen
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- (id)init
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{
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self = [super init];
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return self;
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}
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- (unsigned char *)pixelBRGABytesFromImageRef:(CGImageRef)imageRef
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{
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NSUInteger iWidth = CGImageGetWidth(imageRef);
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NSUInteger iHeight = CGImageGetHeight(imageRef);
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NSUInteger iBytesPerPixel = 4;
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NSUInteger iBytesPerRow = iBytesPerPixel * iWidth;
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NSUInteger iBitsPerComponent = 8;
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unsigned char *imageBytes = (unsigned char *)malloc(iWidth * iHeight * iBytesPerPixel);
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CGColorSpaceRef colorspace = CGColorSpaceCreateDeviceRGB();
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CGContextRef context = CGBitmapContextCreate(imageBytes,
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iWidth,
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iHeight,
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iBitsPerComponent,
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iBytesPerRow,
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colorspace,
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kCGBitmapByteOrder32Little | kCGImageAlphaPremultipliedFirst);
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CGRect rect = CGRectMake(0 , 0 , iWidth, iHeight);
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CGContextDrawImage(context , rect ,imageRef);
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CGColorSpaceRelease(colorspace);
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CGContextRelease(context);
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CGImageRelease(imageRef);
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return imageBytes;
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}
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- (unsigned char *)pixelBRGABytesFromImage:(UIImage *)image
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{
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return [self pixelBRGABytesFromImageRef:image.CGImage];
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}
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- (void)start
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{
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dispatch_async(dispatch_get_main_queue(), ^(void){
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[NSTimer scheduledTimerWithTimeInterval:0.4f target:self selector:@selector(capture) userInfo:nil repeats:YES];
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});
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}
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- (UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize
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{
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//UIGraphicsBeginImageContext(newSize);
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UIGraphicsBeginImageContextWithOptions(newSize, NO, 1.0f);
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[image drawInRect:CGRectMake(0, 0, newSize.width, newSize.height)];
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UIImage *newImage = UIGraphicsGetImageFromCurrentImageContext();
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UIGraphicsEndImageContext();
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[image release];
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return newImage;
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}
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- (void)capture
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{
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@autoreleasepool {
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if(isBlackScreen || !isEnabled) {
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return;
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}
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UIImage* image = _UICreateScreenUIImage();
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CGSize newS = CGSizeMake(image.size.width, image.size.height);
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image = [[self imageWithImage:image scaledToSize:newS] copy];
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CGImageRef imageRef = image.CGImage;
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NSUInteger iWidth = CGImageGetWidth(imageRef);
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NSUInteger iHeight = CGImageGetHeight(imageRef);
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NSUInteger iBytesPerPixel = 4;
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size_t size = iWidth * iHeight * iBytesPerPixel;
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unsigned char * bytes = [self pixelBRGABytesFromImageRef:imageRef];
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dispatch_async(dispatch_get_global_queue( DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
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@autoreleasepool {
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NSData *imageData = [NSData dataWithBytesNoCopy:bytes length:size freeWhenDone:YES];
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[imageData writeToFile:@"//tmp/screendump_Buff.tmp" atomically:YES];
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[@{@"width":@(iWidth), @"height":@(iHeight), @"size":@(size),} writeToFile:@"//tmp/screendump_Info.tmp" atomically:YES];
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notify_post("com.julioverne.screendump/frameChanged");
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}
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});
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}
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}
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@end
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%hook SpringBoard
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- (void)applicationDidFinishLaunching:(id)application
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{
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%orig;
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CapturerScreen* cap = [[CapturerScreen alloc] init];
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[cap start];
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}
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%end
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static void screenDisplayStatus(CFNotificationCenterRef center, void* observer, CFStringRef name, const void* object, CFDictionaryRef userInfo)
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{
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uint64_t state;
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int token;
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notify_register_check("com.apple.iokit.hid.displayStatus", &token);
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notify_get_state(token, &state);
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notify_cancel(token);
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if(!state) {
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isBlackScreen = YES;
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} else {
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isBlackScreen = NO;
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}
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}
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static void loadPrefs(CFNotificationCenterRef center, void* observer, CFStringRef name, const void* object, CFDictionaryRef userInfo)
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{
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@autoreleasepool {
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NSUserDefaults *defaults = [[NSUserDefaults alloc] initWithSuiteName:@"com.cosmosgenius.screendump"];
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isEnabled = [[defaults objectForKey:@"CCSisEnabled"]?:@NO boolValue];
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}
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}
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%ctor
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{
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CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(), NULL, screenDisplayStatus, CFSTR("com.apple.iokit.hid.displayStatus"), NULL, CFNotificationSuspensionBehaviorDeliverImmediately);
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CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(), NULL, loadPrefs, CFSTR("com.cosmosgenius.screendump/preferences.changed"), NULL, CFNotificationSuspensionBehaviorDeliverImmediately);
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loadPrefs(NULL, NULL, NULL, NULL, NULL);
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} |