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Fix bug in SkMatrix::invert where typemask is not set on inverse when a matrix is inverted into itself.

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Review URL: http://codereview.appspot.com/4819050/



git-svn-id: http://skia.googlecode.com/svn/trunk@2002 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
bsalomon@google.com 2011-08-01 13:26:01 +00:00
parent 84b437e6ce
commit cf9b7505f2
1 changed files with 3 additions and 2 deletions
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5
src/core/SkMatrix.cpp
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@ -795,8 +795,10 @@ bool SkMatrix::invert(SkMatrix* inv) const {
if (inv) {
SkMatrix tmp;
if (inv == this)
if (inv == this) {
inv = &tmp;
}
inv->setTypeMask(kUnknown_Mask);
if (isPersp) {
shift = 61 - shift;
@ -880,7 +882,6 @@ bool SkMatrix::invert(SkMatrix* inv) const {
if (inv == &tmp) {
*(SkMatrix*)this = tmp;
}
inv->setTypeMask(kUnknown_Mask);
}
return true;
}