Images With Alpha Layer Exported Twice

[tajmone]

Currently, whenever an image containing an Alpha layer is exported, the plugin is invoked twice (for image.ext and image.alpha.ext). This occurs regardless of whether isWriteTrueColorSupported() returns true or false.

This seems connected to PM NG native behaviour when saving to file formats that don't support alpha channels, for which PM created and additional .alpha.<ext> file to store the Alpha layer in order to reconstruct it when loading that image again.

This is either a bug or an undocumented feature — the former suggests that PM should be handling creation of the extra file.

For more details, see also:

• Cosmigo Forum » File I/O: Exporting image with Alpha layer creates two files
• Images With Alpha Layer Exported Twice pmotion-purebasic#4

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• Try to understand how this bug affects the current interface.
  • Annotate the problem in the language agnostic interface.
• Track PMNG updates for when it's fixed.

[jan-cosmigo]

This is a bug. Instead of calling isWriteTrueColorSupported() the function isAlphaEnabled() is called when storing the image data.