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error parsing DEFINEFONT3 Tag about pyswf HOT 4 OPEN

zhzhzoo avatar zhzhzoo commented on August 23, 2024
error parsing DEFINEFONT3 Tag

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Comments (4)

zhzhzoo avatar zhzhzoo commented on August 23, 2024

Solved. Adobe Flash Player reads the offsetTable first, then look up the glyphShapeTable for a given character when encountered. So some SWF may have glyphShapeTable not immediately following codeTableOffset or vacancies between glyphShape entries, however, as the SWF provided correct offsetTable, it can be recognised by Adobe Flash Player.

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demurgos avatar demurgos commented on August 23, 2024

The dropbox link is no longer available. Could you provide the example again?

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zhzhzoo avatar zhzhzoo commented on August 23, 2024

https://drive.google.com/file/d/1WSwud0Zx6xN8aijzatG8Sg2cFRsgmiXJ/view?usp=sharing

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demurgos avatar demurgos commented on August 23, 2024

I did not fully understand your explanations, but I tested it against my own parsers and it seem to work.

Here are the relevant functions, I hope it may help to fix it here:

I am effectively reading the offset table first and then using it to parse the glyphs.

(Your example also helped me find out that my implementation does not discard the terminating null-byte of the font name, thanks.)

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