[Mono-bugs] [Bug 78076][Maj] Changed - Graphics.DrawImage badly broken

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Changed by gonzalo at ximian.com.

http://bugzilla.ximian.com/show_bug.cgi?id=78076

--- shadow/78076	2006-04-11 16:59:42.000000000 -0400
+++ shadow/78076.tmp.1955	2006-04-11 18:26:43.000000000 -0400
@@ -1,13 +1,13 @@
 Bug#: 78076
 Product: Mono: Class Libraries
 Version: 1.1
 OS: other
 OS Details: Fedora Core 4
-Status: NEW   
-Resolution: 
+Status: RESOLVED   
+Resolution: NOTABUG
 Severity: Unknown
 Priority: Major
 Component: libgdiplus
 AssignedTo: gonzalo at ximian.com                            
 ReportedBy: t7 at pobox.com               
 QAContact: mono-bugs at ximian.com
@@ -73,6 +73,47 @@
 
 ------- Additional Comments From t7 at pobox.com  2006-04-11 11:24 -------
 Switching the new Bitmap format to PixelFormat.Format32bppArgb
 eliminates the problem (though it is still a bug that it fails with
 Format24bppRgb).
 Also note, using DrawImageUnscaled() gives the same (bad) result.
+
+------- Additional Comments From gonzalo at ximian.com  2006-04-11 18:26 -------
+I tested your program on both MS and mono and the results are
+identical, but the file size of image2.png is different. I added 2
+Console.WriteLine to your test so that RawFormat and PixelFormat are
+displayed for both image.png and image2.png (Load after Save).
+
+This is the result on windows/MS.NET:
+----
+$ ./png.exe
+[ImageFormat: b96b3caf-0728-11d3-9d7b-0000f81ef32e]
+Format32bppArgb
+[ImageFormat: b96b3caf-0728-11d3-9d7b-0000f81ef32e]
+Format24bppRgb
+
+gonzalo at monowin1 /cygdrive/c
+$ ls -l *.png
+-rw-r--r--  1 gonzalo None 4496 Apr 11 21:49 image.png
+-rw-r--r--  1 gonzalo None 7130 Apr 11 21:55 image2.png
+
+gonzalo at monowin1 /cygdrive/c
+$ file *png
+image.png:  PNG image data, 401 x 80, 8-bit colormap, non-interlaced
+image2.png: PNG image data, 401 x 80, 8-bit/color RGB, non-interlaced
+----
+
+And the result on linux/mono is:
+$ mono png.exe
+Png
+Format8bppIndexed
+Png
+Format24bppRgb
+$ file *.png
+image2.png: PNG image data, 401 x 80, 8-bit/color RGB, non-interlaced
+image.png: PNG image data, 401 x 80, 8-bit colormap, non-interlaced
+$ ls *.png
+-rw-r--r--  1 gonzalo users 11295 2006-04-11 17:56 image2.png
+-rw-r--r--  1 gonzalo users  4496 2006-04-11 17:53 image.png
+
+I'll fix PixelFormat for the loaded image, but what you reported is
+not a bug.