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| author | Nicolas Pena <npm@chromium.org> | 2017-03-16 12:14:18 -0400 |
|---|---|---|
| committer | Chromium commit bot <commit-bot@chromium.org> | 2017-03-16 17:25:51 +0000 |
| commit | fbd9ea1db2f1bb7fa006e7304a1202afc683c142 (patch) | |
| tree | 8501b34ee302409d4ce3db34ea243ced33f2138b | |
| parent | cfdb5fdd12d47136ad1db9a67fc598a71f6757ff (diff) | |
| download | pdfium-fbd9ea1db2f1bb7fa006e7304a1202afc683c142.tar.xz | |
Compare to epsilon instead of 0 in CFX_Matrix::SetReverse
Since we are going to divide i by 0, it is better to compare it to epsilon
and avoid wonkiness from division by something too close to 0.
BUG=chromium:702041
Change-Id: I8136d6063f8debd41cef37eaab7e4097b3f32f4b
Reviewed-on: https://pdfium-review.googlesource.com/3090
Commit-Queue: Nicolás Peña <npm@chromium.org>
Reviewed-by: dsinclair <dsinclair@chromium.org>
| -rw-r--r-- | core/fxcrt/fx_basic_coords.cpp | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/core/fxcrt/fx_basic_coords.cpp b/core/fxcrt/fx_basic_coords.cpp index 460f700f03..a1b403820e 100644 --- a/core/fxcrt/fx_basic_coords.cpp +++ b/core/fxcrt/fx_basic_coords.cpp @@ -4,9 +4,8 @@ // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com -#include <limits.h> - #include <algorithm> +#include <limits> #include "core/fxcrt/fx_coordinates.h" #include "core/fxcrt/fx_ext.h" @@ -231,7 +230,7 @@ CFX_FloatRect CFX_FloatRect::GetBBox(const CFX_PointF* pPoints, int nPoints) { void CFX_Matrix::SetReverse(const CFX_Matrix& m) { float i = m.a * m.d - m.b * m.c; - if (FXSYS_fabs(i) == 0) + if (FXSYS_fabs(i) <= std::numeric_limits<float>::epsilon()) return; float j = -i; |