add gpu backend (not hooked up yet)
git-svn-id: http://skia.googlecode.com/svn/trunk@649 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/include/GrInstanceCounter.h b/gpu/include/GrInstanceCounter.h
new file mode 100644
index 0000000..11cec2b
--- /dev/null
+++ b/gpu/include/GrInstanceCounter.h
@@ -0,0 +1,47 @@
+/*
+ Copyright 2010 Google Inc.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+ */
+
+
+#ifndef GrInstanceCounter_DEFINED
+#define GrInstanceCounter_DEFINED
+
+#include "GrTypes.h"
+
+template <typename T> class GrInstanceCounter {
+public:
+ GrInstanceCounter() {
+ ++gCounter;
+ GrPrintf("+ %s %d\n", T::InstanceCounterClassName(), gCounter);
+ }
+
+ ~GrInstanceCounter() {
+ --gCounter;
+ GrPrintf("- %s %d\n", T::InstanceCounterClassName(), gCounter);
+ }
+
+private:
+ static int gCounter;
+};
+
+template <typename T> int GrInstanceCounter<T>::gCounter;
+
+#define DECLARE_INSTANCE_COUNTER(T) \
+ static const char* InstanceCounterClassName() { return #T; } \
+ friend class GrInstanceCounter<T>; \
+ GrInstanceCounter<T> fInstanceCounter
+
+#endif
+