79 lines
2.3 KiB
C
79 lines
2.3 KiB
C
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/*
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* Copyright (C) 2008 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_VRAM_HEAP_H
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#define ANDROID_VRAM_HEAP_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/MemoryDealer.h>
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namespace android {
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// ---------------------------------------------------------------------------
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class PMemHeap;
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class MemoryHeapPmem;
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class SurfaceFlinger;
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// ---------------------------------------------------------------------------
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class SurfaceHeapManager : public RefBase
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{
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public:
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SurfaceHeapManager(const sp<SurfaceFlinger>& flinger, size_t clientHeapSize);
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virtual ~SurfaceHeapManager();
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virtual void onFirstRef();
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/* use ISurfaceComposer flags eGPU|eHArdware|eSecure */
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sp<MemoryDealer> createHeap(uint32_t flags=0, pid_t client_pid = 0,
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const sp<MemoryDealer>& defaultAllocator = 0);
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// used for debugging only...
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sp<SimpleBestFitAllocator> getAllocator(int type) const;
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private:
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sp<PMemHeap> getHeap(int type) const;
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sp<SurfaceFlinger> mFlinger;
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mutable Mutex mLock;
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size_t mClientHeapSize;
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sp<PMemHeap> mPMemHeap;
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static int global_pmem_heap;
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};
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// ---------------------------------------------------------------------------
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class PMemHeap : public MemoryHeapBase
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{
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public:
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PMemHeap(const char* const vram,
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size_t size=0, size_t reserved=0);
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virtual ~PMemHeap();
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virtual const sp<SimpleBestFitAllocator>& getAllocator() const {
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return mAllocator;
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}
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virtual sp<MemoryHeapPmem> createClientHeap();
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private:
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sp<SimpleBestFitAllocator> mAllocator;
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};
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// ---------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_VRAM_HEAP_H
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