I've been using FreeImage lib for some years now, always with a bad feeling about the architecture and the scalability of its features.
I keep on using it as I didn't find another more convincing image loading library ; but today I had the proof that my feelings were right !
While loading a small 11x11 32bits TGA file, FreeImage reported it as being FIC_RGB and not FIC_RGBA, thus leading my wrapping code to remove the alpha channel... After a quick investigation, I found out that the 'FreeImage_GetColorType' function, when called, actually scans all pixels of RGBA images, and reports FIC_RGB if the alpha channel of every pixel is 255 !
Uh...
11/06/2007
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2 comments:
any rationale why it is so?
Alas, I don't have a clue... I can't remember having seen any comment in FreeImage source code or documentation...
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