Fix images with alpha

Author: fidifis

Setup/setup.aip

@@ -12,10 +12,10 @@
     <ROW Property="ARPNOMODIFY" MultiBuildValue="DefaultBuild:1"/>
     <ROW Property="ARPNOREPAIR" Value="1"/>
     <ROW Property="Manufacturer" Value="Fidifis"/>
-    <ROW Property="ProductCode" Value="1033:{2BE73AA6-E6C4-4311-A78F-685CE9A57418} " Type="16"/>
+    <ROW Property="ProductCode" Value="1033:{1278E4CE-1455-4F2A-9E56-8B5DE07A27B7} " Type="16"/>
     <ROW Property="ProductLanguage" Value="1033"/>
     <ROW Property="ProductName" Value="TextureMerge"/>
-    <ROW Property="ProductVersion" Value="1.4.1" Options="4"/>
+    <ROW Property="ProductVersion" Value="1.4.2" Options="4"/>
     <ROW Property="SecureCustomProperties" Value="OLDPRODUCTS;AI_NEWERPRODUCTFOUND"/>
     <ROW Property="UpgradeCode" Value="{C6BCFED9-578D-4E43-8345-740156903ECA}"/>
     <ROW Property="WindowsType9X" MultiBuildValue="DefaultBuild:Windows 9x/ME" ValueLocId="-"/>

TextureMerge/Merge/Merge.cs

@@ -362,16 +362,13 @@ public void LoadChannel(string path, Channel channelSlot, Channel channelSource)
                 throw new ArgumentException("Alpha can't be source channel");
 
 
-            var source = new TMImage(new MagickImage(path), Path.GetFileName(path));
+            var source = new TMImage(new MagickImage(path), Path.GetFileName(path)) ?? throw new ArgumentException("Failed to load image");
+
+            source.Image.Alpha(AlphaOption.Off);
             source.Image.ColorType = ColorType.TrueColor;
             source.Image.AutoOrient();
             source.Image.ColorSpace = ColorSpace.sRGB;
 
-            if (source is null)
-                throw new ArgumentException("Failed to load image");
-
-            source.Image.Alpha(AlphaOption.Off);
-
             switch (channelSlot)
             {
                 case Channel.Red:

TextureMerge/Properties/AssemblyInfo.cs

@@ -51,5 +51,5 @@
 // Můžete zadat všechny hodnoty nebo nastavit výchozí číslo buildu a revize
 // pomocí zástupného znaku * takto:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.4.1")]
-[assembly: AssemblyFileVersion("1.4.1")]
+[assembly: AssemblyVersion("1.4.2")]
+[assembly: AssemblyFileVersion("1.4.2")]