From cf71c461e3099bb8db9ccbc09b55797733f4632c Mon Sep 17 00:00:00 2001
From: k-m_schindler <k-m_schindler@b956fd51-792f-4845-bead-9b4dfca2ff2c>
Date: Fri, 13 Feb 2009 21:27:42 +0000
Subject: Additional safe guard for pixel size in ColorizeImage

git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@1591 b956fd51-792f-4845-bead-9b4dfca2ff2c
---
 src/base/UImage.pas | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/base/UImage.pas b/src/base/UImage.pas
index d9d02a58..db4cde09 100644
--- a/src/base/UImage.pas
+++ b/src/base/UImage.pas
@@ -947,6 +947,15 @@ var
 begin
 
   Pixel := ImgSurface^.Pixels;
+  
+  // check of the size of a pixel in bytes.
+  // It should be always 4, but this 
+  // additional safeguard will show, 
+  // whether something went wrong up to here.
+
+  if ImgSurface^.format.BytesPerPixel <> 4 then
+    Log.LogError ('ColorizeImage: The pixel size should be 4, but it is ' 
+                   + IntToStr(ImgSurface^.format.BytesPerPixel));
 
   hue := col2hue(NewColor);   // hue is shl 10
   f := hue and $3ff;
-- 
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