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linux.gif (575 bytes) |
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The Gif is invalid? --------------------------- IrfanView --------------------------- C:\......\linux.gif : Decode error ! Invalid or unsupported GIF file. --------------------------- OK --------------------------- |
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The gif can be open in other programs. I think it's greyscale. Small changes in FPReadGif prevents it from ending up in infinite loops. in Internal read : // skip extensions Repeat Introducer:=SkipBlock(Stream); until (Introducer = $2C) or (Introducer = $3B) or (Stream.Position>=Stream.Size); if Stream.Position>=Stream.Size then Exit; and in Readscanline on two locations: Repeat Stream.read(B, 1); if B > 0 then begin Stream.ReadBuffer(SourcePtr^, B); Inc(SourcePtr,B); end; until (B = 0) or (Stream.Position>=Stream.Size); if Stream.Position>Stream.Size then begin ReadScanLine:=False; Exit; end; At least this prevent the gif reader to end up in infinite loop. When trying to load unsupported gifs. |
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The gif is invalid. Even Chromium will not accept it. There are multiple ways to check the validity already, including brute force exception handling. This is a non-issue. |
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Internet explorer opened it. I think even if the gif file is invalid the reader shouldn't end up in an infinite loop. I should be protected from that. |
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You are a programmer, not an end user? |
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Anyway I used the changes presented in the post above and that solved it for me, so i'm happy. But i still think some changes at least should be made to the existing code. To prevent infinite loops. |
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Applied, thanks. Thaddy, please keep the noise down. |
- Anonymous
