Files
vectorcraft/docs
dotCooCoo 3a834f705a TIFF: refuse files of over 64 samples a pixel from their tags
The 64-sample limit is now checked against the file's SamplesPerPixel
before anything is decoded. It was checked against the samples the
decoder gives, which is five for any CMYK file whose first ExtraSamples
value is alpha, so a small file with 65,535 samples a pixel was read and
the decoder took a row of every sample (1 GiB for a 16-bit file 8,192
pixels wide) before reading its data.

- The row the decoder reads each strip or tile into, when the file has
  more samples a pixel than it gives, counts in the allowance.
- Files whose samples aren't unsigned integers are refused from their
  tags; no reader takes them.
- The same checks run before CMYK inks and plates are decoded.
- The copy that puts a planar file's samples pixel by pixel is allocated
  once, at its length, so the reader holds no more than it counts.
2026-11-14 11:44:57 -08:00
..