1 /* 2 ** 3 ** Copyright 2009, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 #ifndef ANDROID_BUFFER_ALLOCATOR_H 18 #define ANDROID_BUFFER_ALLOCATOR_H 19 #include <stdint.h> 20 #include <memory> 21 #include <string> 22 #include <cutils/native_handle.h> 23 #include <ui/PixelFormat.h> 24 #include <utils/Errors.h> 25 #include <utils/Mutex.h> 26 #include <utils/Singleton.h> 27 28 #include <unordered_map> 29 30 namespace android { 31 namespace Gralloc2 { 32 class Allocator; 33 } 34 class GraphicBufferMapper; 35 class String8; 36 class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator> 37 { 38 public: get()39 static inline GraphicBufferAllocator& get() { return getInstance(); } 40 status_t allocate(uint32_t w, uint32_t h, PixelFormat format, 41 uint32_t layerCount, uint64_t usage, 42 buffer_handle_t* handle, uint32_t* stride, uint64_t graphicBufferId, 43 std::string requestorName); 44 status_t free(buffer_handle_t handle); 45 void dump(String8& res) const; 46 static void dumpToSystemLog(); 47 private: 48 struct alloc_rec_t { 49 uint32_t width; 50 uint32_t height; 51 uint32_t stride; 52 PixelFormat format; 53 uint32_t layerCount; 54 uint64_t usage; 55 size_t size; 56 std::string requestorName; 57 }; 58 static Mutex sLock; 59 static std::unordered_map<buffer_handle_t, alloc_rec_t> sAllocList; 60 friend class Singleton<GraphicBufferAllocator>; 61 GraphicBufferAllocator(); 62 ~GraphicBufferAllocator(); 63 GraphicBufferMapper& mMapper; 64 const std::unique_ptr<const Gralloc2::Allocator> mAllocator; 65 }; 66 // --------------------------------------------------------------------------- 67 }; // namespace android 68 #endif // ANDROID_BUFFER_ALLOCATOR_H 69