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authorGravatar bsalomon@google.com <bsalomon@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2012-10-31 16:50:38 +0000
committerGravatar bsalomon@google.com <bsalomon@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2012-10-31 16:50:38 +0000
commit683c3c76cfd2cc71621e570889a16548f8cc88c6 (patch)
tree32be84fe748fd030bbfba37b0d69bc68d917de6b /src
parent4177ef4b229b5fb67f355569654981bb4bf8eb9c (diff)
Shortcut inverting the identity matrix.
Review URL: https://codereview.appspot.com/6775087/ git-svn-id: http://skia.googlecode.com/svn/trunk@6218 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'src')
-rw-r--r--src/core/SkMatrix.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/core/SkMatrix.cpp b/src/core/SkMatrix.cpp
index 4cd27e42ee..8dee0cb229 100644
--- a/src/core/SkMatrix.cpp
+++ b/src/core/SkMatrix.cpp
@@ -848,7 +848,8 @@ bool SkMatrix::asAffine(SkScalar affine[6]) const {
return true;
}
-bool SkMatrix::invert(SkMatrix* inv) const {
+bool SkMatrix::invertNonIdentity(SkMatrix* inv) const {
+ SkASSERT(!this->isIdentity());
int isPersp = this->hasPerspective();
int shift;
SkDetScalar scale = sk_inv_determinant(fMat, isPersp, &shift);