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Bug 2219

Summary: BMP loader do not handle big BITMAPINFOHEADER structure
Product: SDL Reporter: Patrice Mandin <patmandin>
Component: videoAssignee: Sam Lantinga <slouken>
Status: RESOLVED FIXED QA Contact: Sam Lantinga <slouken>
Severity: normal    
Priority: P2    
Version: HG 1.2   
Hardware: All   
OS: All   
Attachments: Proposed patch

Description Patrice Mandin 2013-11-07 20:51:00 UTC 
Created attachment 1412 [details]
Proposed patch

Hello,

I encountered a problem trying to load a 8-bit paletted BMP file using SDL. This file was generated using GIMP 2.8. It has a big BITMAPINFOHEADER (0x6c bytes for biSize field), and thus the palette is incorrectly setup.

I made this simple patch (that fixes it for my case), I do not know if processing all other stuff from the header is needed.

I think the same problem is present in SDL 2.x just having looked at the source code, I did not try.
Comment 1 Sam Lantinga 2013-11-08 03:16:31 UTC 
Fixed, thanks!
https://hg.libsdl.org/SDL/rev/44dc7926f62d