Initial Contribution
diff --git a/libs/surfaceflinger/VRamHeap.h b/libs/surfaceflinger/VRamHeap.h
new file mode 100644
index 0000000..03e0336
--- /dev/null
+++ b/libs/surfaceflinger/VRamHeap.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2008 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_VRAM_HEAP_H
+#define ANDROID_VRAM_HEAP_H
+
+#include <stdint.h>
+#include <sys/types.h>
+#include <utils/MemoryDealer.h>
+
+namespace android {
+
+// ---------------------------------------------------------------------------
+
+class PMemHeap;
+class MemoryHeapPmem;
+
+// ---------------------------------------------------------------------------
+
+class SurfaceHeapManager : public RefBase
+{
+public:
+ SurfaceHeapManager(size_t clientHeapSize);
+ virtual ~SurfaceHeapManager();
+ virtual void onFirstRef();
+ sp<MemoryDealer> createHeap(int type);
+
+ // used for debugging only...
+ sp<SimpleBestFitAllocator> getAllocator(int type) const;
+
+private:
+ sp<PMemHeap> getHeap(int type) const;
+
+ mutable Mutex mLock;
+ size_t mClientHeapSize;
+ sp<PMemHeap> mPMemHeap;
+ static int global_pmem_heap;
+};
+
+// ---------------------------------------------------------------------------
+
+class PMemHeapInterface : public MemoryHeapBase
+{
+public:
+ PMemHeapInterface(int fd, size_t size);
+ PMemHeapInterface(const char* device, size_t size = 0);
+ PMemHeapInterface(size_t size, uint32_t flags = 0, char const * name = NULL);
+ virtual ~PMemHeapInterface();
+ virtual sp<MemoryHeapPmem> createClientHeap() = 0;
+};
+
+// ---------------------------------------------------------------------------
+
+class PMemHeap : public PMemHeapInterface
+{
+public:
+ PMemHeap(const char* const vram,
+ size_t size=0, size_t reserved=0);
+ virtual ~PMemHeap();
+
+ virtual const sp<SimpleBestFitAllocator>& getAllocator() const {
+ return mAllocator;
+ }
+ virtual sp<MemoryHeapPmem> createClientHeap();
+
+private:
+ sp<SimpleBestFitAllocator> mAllocator;
+};
+
+// ---------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_VRAM_HEAP_H