commit b054990307b7338e599a12d9af10eb2058b94051
author vandebo@chromium.org <vandebo@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Fri Apr 13 20:45:46 2012 +0000
committer vandebo@chromium.org <vandebo@chromium.org@2bbb7eff-a529-9590-31e7-b0007b416f81> Fri Apr 13 20:45:46 2012 +0000
tree 4eb2241f48044c485959bb43a5d6ed808d12df87
parent 32a0fb051fe865ebde4d875ab8d224c5a402cb22

[PDF] If matrix inversion fails, use the identity matrix.

BUG=chrome:123078

Review URL: https://codereview.appspot.com/6007044

git-svn-id: http://skia.googlecode.com/svn/trunk@3676 2bbb7eff-a529-9590-31e7-b0007b416f81

src/pdf/SkPDFFormXObject.cpp

diff --git a/src/pdf/SkPDFFormXObject.cpp b/src/pdf/SkPDFFormXObject.cpp
index fb8a915..f368834 100644
--- a/src/pdf/SkPDFFormXObject.cpp
+++ b/src/pdf/SkPDFFormXObject.cpp
@@ -36,8 +36,9 @@
     // embedded in things like shaders and images.
     if (!device->initialTransform().isIdentity()) {
         SkMatrix inverse;
-        inverse.reset();
-        device->initialTransform().invert(&inverse);
+        if (!device->initialTransform().invert(&inverse)) {
+            inverse.reset();
+        }
         insert("Matrix", SkPDFUtils::MatrixToArray(inverse))->unref();
     }