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/*
* 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
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