From 9d12af0330620427eae1d767ee9d6f519ab2275a Mon Sep 17 00:00:00 2001
From: Alex Malko <support@alexapps.net>
Date: Wed, 1 Jul 2020 09:50:47 -0500
Subject: [PATCH] BUGFIX: EXC_BAD_ACCESS during CGContextDrawImage

Why it happened? In my case the image was 500 pixels width but:

  NSUInteger width = 500
  NSUInteger bytesPerPixel = 4
  NSUInteger bytesPerRow = 2016

Because the image took 2016 bytes per row instead of 2000 we need
to allocate more memory for the "imageData" array.
---
 .../UIImage Scanline Floodfill/UIImage+FloodFill.m              | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/UIImage Scanline Floodfill/UIImage Scanline Floodfill/UIImage+FloodFill.m b/UIImage Scanline Floodfill/UIImage Scanline Floodfill/UIImage+FloodFill.m
index f74a47b..3f45a9d 100755
--- a/UIImage Scanline Floodfill/UIImage Scanline Floodfill/UIImage+FloodFill.m	
+++ b/UIImage Scanline Floodfill/UIImage Scanline Floodfill/UIImage+FloodFill.m	
@@ -49,7 +49,7 @@ - (UIImage *) floodFillFromPoint:(CGPoint)startPoint withColor:(UIColor *)newCol
         NSUInteger bytesPerRow = CGImageGetBytesPerRow(imageRef);
         NSUInteger bitsPerComponent = CGImageGetBitsPerComponent(imageRef);
 
-        unsigned char *imageData = malloc(height * width * bytesPerPixel);
+        unsigned char *imageData = malloc(height * bytesPerRow);
       
         CGBitmapInfo bitmapInfo = CGImageGetBitmapInfo(imageRef);