tree a614b10a9dd5fcae70ef9745693b3d474a5b91e8
parent 89d1c7c0916ab66a8aec96853c6748e63f3f5ebc
author Daniel Hosseinian <dhoss@chromium.org> 1560546221 +0000
committer Chromium commit bot <commit-bot@chromium.org> 1560546221 +0000

Make PSOP_ROUND round according to PLRM definiton

Add a function `RoundHalfUp()` to cpdf_psengine.cpp to handle rounding
according to the PLRM definition of half up rounding. Half up rounding
of a number `x` is defined as `floor(x + 0.5)`. Support rounding for
all floats, and not only floats within the range of INTs, as before.
This bug is related to pdfium:1314.

Bug: pdfium:1321
Change-Id: I1c071e8ac4bb718a08722159faee6326f82d17ed
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/56236
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>