* Imported Andy Ritger's GTF code in compute_display_timing.cpp, and mangled it

into a usable function - this has some coding style issues I did not care to
  fix.
* _AddBaseMode() now computes the mode in case it is not present in the list
  yet.
* This should help with bug #7787.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42420 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/apps/aboutsystem/AboutSystem.cpp

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005-2010, Haiku, Inc.
+ * Copyright 2005-2011, Haiku, Inc.
  * Distributed under the terms of the MIT license.
  *
  * Authors:
@@ -1617,7 +1617,7 @@ AboutView::_CreateCreditsView()
 		.SetCopyright(B_TRANSLATE(COPYRIGHT_STRING
 			"1999-2010 by the authors of Gutenprint. All rights reserved."))
 		.SetLicense("GNU GPL v2")
-		.SetURL("http://gutenprint.sourceforge.net"));
+		.SetURL("http://gutenprint.sourceforge.net/"));
 
 	// libwebp
 	_AddPackageCredit(PackageCredit("libwebp")
@@ -1626,6 +1626,13 @@ AboutView::_CreateCreditsView()
 		.SetLicense(B_TRANSLATE("BSD (3-clause)"))
 		.SetURL("http://www.webmproject.org/code/#libwebp_webp_image_library"));
 
+	// GTF
+	_AddPackageCredit(PackageCredit("GTF")
+		.SetCopyright(B_TRANSLATE("2001 by Andy Ritger based on the "
+			"Generalized Timing Formula"))
+		.SetLicense(B_TRANSLATE("BSD (3-clause)"))
+		.SetURL("http://gtf.sourceforge.net/"));
+
 	_AddCopyrightsFromAttribute();
 	_AddPackageCreditEntries();