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authorAllan Sandfeld Jensen <allan.jensen@qt.io>2021-03-04 14:28:48 +0100
committerAllan Sandfeld Jensen <allan.jensen@qt.io>2021-03-05 10:45:06 +0100
commit9311a42677db244cd1c584f27270fa73f69d90d7 (patch)
tree0a580ee0e3463ee3710ee860eac03d4b08e6b24d
parentfbe87464350f8bd66ddef5653280fac6bfadab3b (diff)
downloadqtsvg-5.12.tar.gz
Clamp parsed doubles to float representable values5.12
Parts of our rendering assumes incoming doubles can still be sane floats. Fixes: QTBUG-91507 Change-Id: I7086a121e1b5ed47695a1251ea90e774dd8f148d Reviewed-by: Robert Löhning <robert.loehning@qt.io> Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io> Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io> (cherry picked from commit bfd6ee0d8cf34b63d32adf10ed93daa0086b359f)
-rw-r--r--src/svg/qsvghandler.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/src/svg/qsvghandler.cpp b/src/svg/qsvghandler.cpp
index 73e8fb7..08ee781 100644
--- a/src/svg/qsvghandler.cpp
+++ b/src/svg/qsvghandler.cpp
@@ -672,7 +672,8 @@ static qreal toDouble(const QChar *&str)
val = -val;
} else {
val = QByteArray::fromRawData(temp, pos).toDouble();
- if (std::fpclassify(val) != FP_NORMAL)
+ // Do not tolerate values too wild to be represented normally by floats
+ if (std::fpclassify(float(val)) != FP_NORMAL)
val = 0;
}
return val;
@@ -3042,6 +3043,8 @@ static QSvgStyleProperty *createRadialGradientNode(QSvgNode *node,
ncy = toDouble(cy);
if (!r.isEmpty())
nr = toDouble(r);
+ if (nr < 0.5)
+ nr = 0.5;
qreal nfx = ncx;
if (!fx.isEmpty())