2020.08.16 02:02 "[Tiff] Problems with Photoshop when a file is written is strips", by David C. Partridge

2020.08.16 15:16 "Re: [Tiff] Problems with Photoshop when a file is written is strips", by David C. Partridge

I found the culprit – it wasn’t writing the image in strips at all. The problem was triggered by enabling TIF predictive compression:

if (isFloat()) TIFFSetField(m_tiff, TIFFTAG_PREDICTOR, PREDICTOR_FLOATINGPOINT);

Not at all obvious. I’ve commented that out in my code. Be warned...