1 files changed, 65 insertions, 0 deletions
diff --git a/libs/hwui/PatchCache.h b/libs/hwui/PatchCache.h
new file mode 100644
index 0000000..de95087
--- /dev/null
+++ b/libs/hwui/PatchCache.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * 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 ANDROID_UI_PATCH_CACHE_H
+#define ANDROID_UI_PATCH_CACHE_H
+
+#include "Patch.h"
+#include "GenerationCache.h"
+
+namespace android {
+namespace uirenderer {
+
+///////////////////////////////////////////////////////////////////////////////
+// Defines
+///////////////////////////////////////////////////////////////////////////////
+
+// Debug
+#define DEBUG_PATCHES 0
+
+// Debug
+#if DEBUG_PATCHES
+    #define PATCH_LOGD(...) LOGD(__VA_ARGS__)
+#else
+    #define PATCH_LOGD(...)
+#endif
+
+///////////////////////////////////////////////////////////////////////////////
+// Cache
+///////////////////////////////////////////////////////////////////////////////
+
+class PatchCache: public OnEntryRemoved<PatchDescription, Patch*> {
+public:
+    PatchCache(uint32_t maxCapacity);
+    ~PatchCache();
+
+    /**
+     * Used as a callback when an entry is removed from the cache.
+     * Do not invoke directly.
+     */
+    void operator()(PatchDescription& description, Patch*& mesh);
+
+    Patch* get(const Res_png_9patch* patch);
+    void clear();
+
+private:
+    GenerationCache<PatchDescription, Patch*> mCache;
+}; // class PatchCache
+
+}; // namespace uirenderer
+}; // namespace android
+
+#endif // ANDROID_UI_PATCH_CACHE_H