tree 2db1c660391cb937dbda6572b926033f1269864e
parent bfaea27b96034c959e507098f68fbecaf61eeb3f
author Lei Zhang <thestig@chromium.org> 1560969244 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1560969244 +0000

Simplify CLZWDecoder decoding.

- Check for the 0-byte output case in CLZWDecoder::Decode(), rather than
  separately by the caller.
- Do not bother allocating an extra byte in the output buffer for adding
  a NUL terminator. The call stack into CLZWDecoder is shared with many
  other decoders, and no other decoder does this. Also, the caller gets
  back the allocated array size, so it knows where the boundary is.

Change-Id: I86305416bf99052fd61334d51609ac550785285a
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/56490
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>