From 22f3e44ad9d69f48b7cc4aeb5b80ddd02e143c3f Mon Sep 17 00:00:00 2001
From: Levent Duivel <mostm@endcape.ru>
Date: Sun, 10 Nov 2024 03:39:37 +0500
Subject: [PATCH] Revert "cursor ai garbage tuning"

This reverts commit b88f0b7151df44e838e8616c59a5182e5267751d.
---
 screendump/FrameUpdater.m | 69 ++++++++++++++++-----------------------
 1 file changed, 29 insertions(+), 40 deletions(-)

diff --git a/screendump/FrameUpdater.m b/screendump/FrameUpdater.m
index f8686d0..8498585 100644
--- a/screendump/FrameUpdater.m
+++ b/screendump/FrameUpdater.m
@@ -1,6 +1,4 @@
 #import "FrameUpdater.h"
-#import <CoreGraphics/CoreGraphics.h>
-#import <QuartzCore/QuartzCore.h>
 
 @implementation FrameUpdater {
 	
@@ -9,7 +7,6 @@
 	BOOL _updatingFrames;
 	uint32_t _lastUpdatedSeed;
 	NSTimer* _updateFrameTimer;
-	CADisplayLink *_displayLink;
 
 	// Shared from ScreenDumpVNC
 	IOSurfaceRef _screenSurface;
@@ -39,47 +36,39 @@
 
 
 -(void)_updateFrame {
-	[_q addOperationWithBlock: ^{
-		if (!_updatingFrames) {
-			[self stopFrameLoop];
-			return;
-		}
-		// Check if screen changed
-		uint32_t currentFrameSeed = IOSurfaceGetSeed(_screenSurface);
-		
-		// Only proceed if the screen has changed and the VNC is active
-		if (_lastUpdatedSeed != currentFrameSeed && rfbIsActive(_rfbScreenInfo)) {
-			_lastUpdatedSeed = currentFrameSeed;
-			
-			// Optimize the transfer by checking if the accelerator is available
-			if (_accelerator) {
-				IOSurfaceAcceleratorTransferSurface(_accelerator, _screenSurface, _staticBuffer, NULL, NULL, NULL, NULL);
-			}
-			
-			// Mark the entire screen as modified only if necessary
-			if (_width > 0 && _height > 0) {
-				rfbMarkRectAsModified(_rfbScreenInfo, 0, 0, _width, _height);
-			}
-		}
-	}];
-}
+	if (!_updatingFrames) {
+		[self stopFrameLoop];
+		return;
+	}
 
--(void)startFrameLoop {
-    [self stopFrameLoop];
-    _updatingFrames = YES;
-    
-    dispatch_async(dispatch_get_main_queue(), ^(void){
-        _displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(_updateFrame)];
-        [_displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSDefaultRunLoopMode];
-    });
+	// check if screen changed
+	uint32_t currentFrameSeed = IOSurfaceGetSeed(_screenSurface);
+	
+	if (_lastUpdatedSeed != currentFrameSeed && rfbIsActive(_rfbScreenInfo)) {
+		_lastUpdatedSeed = currentFrameSeed;
+		[_q addOperationWithBlock: ^{
+			IOSurfaceAcceleratorTransferSurface(_accelerator, _screenSurface, _staticBuffer, NULL, NULL, NULL, NULL);
+			rfbMarkRectAsModified(_rfbScreenInfo, 0, 0, _width, _height);
+		}];
+	}
 }
 
 -(void)stopFrameLoop {
-    if (_displayLink) {
-        [_displayLink invalidate];
-        _displayLink = nil;
-    }
-    _updatingFrames = NO;
+	if (_updateFrameTimer == nil || ![_updateFrameTimer isValid]) return;
+
+	dispatch_async(dispatch_get_main_queue(), ^(void){
+		[_updateFrameTimer invalidate];
+		_updatingFrames = NO;
+	});
+}
+
+-(void)startFrameLoop {
+	// if (size_image == 0) VNCSetup();
+	[self stopFrameLoop];
+	_updatingFrames = YES;
+	dispatch_async(dispatch_get_main_queue(), ^(void){
+		_updateFrameTimer = [NSTimer scheduledTimerWithTimeInterval:1/400 target:self selector:@selector(_updateFrame) userInfo:nil repeats:YES];
+	});
 }
 
 -(void)dealloc {