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Diffstat (limited to 'libs/surfaceflinger/VRamHeap.h')
-rw-r--r-- | libs/surfaceflinger/VRamHeap.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/libs/surfaceflinger/VRamHeap.h b/libs/surfaceflinger/VRamHeap.h new file mode 100644 index 0000000..9140167 --- /dev/null +++ b/libs/surfaceflinger/VRamHeap.h @@ -0,0 +1,78 @@ +/* + * 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 SurfaceFlinger; + +// --------------------------------------------------------------------------- + +class SurfaceHeapManager : public RefBase +{ +public: + SurfaceHeapManager(const sp<SurfaceFlinger>& flinger, size_t clientHeapSize); + virtual ~SurfaceHeapManager(); + virtual void onFirstRef(); + /* use ISurfaceComposer flags eGPU|eHArdware|eSecure */ + sp<MemoryDealer> createHeap(uint32_t flags=0, pid_t client_pid = 0, + const sp<MemoryDealer>& defaultAllocator = 0); + + // used for debugging only... + sp<SimpleBestFitAllocator> getAllocator(int type) const; + +private: + sp<PMemHeap> getHeap(int type) const; + + sp<SurfaceFlinger> mFlinger; + mutable Mutex mLock; + size_t mClientHeapSize; + sp<PMemHeap> mPMemHeap; + static int global_pmem_heap; +}; + +// --------------------------------------------------------------------------- + +class PMemHeap : public MemoryHeapBase +{ +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 |