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authorGravatar reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2013-12-12 16:27:12 +0000
committerGravatar reed@google.com <reed@google.com@2bbb7eff-a529-9590-31e7-b0007b416f81>2013-12-12 16:27:12 +0000
commit772d8524cef44f973abde368a69f8d17b55c6d74 (patch)
treecb16ab90ff6f74885ec858e61d74bff749bf609b /include/core
parent728f2a62526c8643ba5d234e6f570a4ebd06271a (diff)
ensure that we call onUnlock only when we onLock succeeded
BUG= R=halcanary@google.com, scroggo@google.com Review URL: https://codereview.chromium.org/112783004 git-svn-id: http://skia.googlecode.com/svn/trunk@12642 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'include/core')
-rw-r--r--include/core/SkPixelRef.h13
1 files changed, 9 insertions, 4 deletions
diff --git a/include/core/SkPixelRef.h b/include/core/SkPixelRef.h
index ec4937bea0..d4c35323bb 100644
--- a/include/core/SkPixelRef.h
+++ b/include/core/SkPixelRef.h
@@ -244,10 +244,15 @@ protected:
acquire a mutex for thread safety, so this method need not do that.
*/
virtual void* onLockPixels(SkColorTable**) = 0;
- /** Called when the lock count goes from 1 to 0. The caller will have
- already acquire a mutex for thread safety, so this method need not do
- that.
- */
+
+ /**
+ * Called when the lock count goes from 1 to 0. The caller will have
+ * already acquire a mutex for thread safety, so this method need not do
+ * that.
+ *
+ * If the previous call to onLockPixels failed (i.e. returned NULL), then
+ * the onUnlockPixels will NOT be called.
+ */
virtual void onUnlockPixels() = 0;
/** Default impl returns true */