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 18#ifndef ANDROID_BUFFER_ALLOCATOR_H 19#define ANDROID_BUFFER_ALLOCATOR_H 20 21#include <stdint.h> 22 23#include <memory> 24#include <string> 25 26#include <cutils/native_handle.h> 27 28#include <system/window.h> 29 30#include <ui/PixelFormat.h> 31 32#include <utils/Errors.h> 33#include <utils/KeyedVector.h> 34#include <utils/Mutex.h> 35#include <utils/Singleton.h> 36 37namespace android { 38 39namespace Gralloc2 { 40class Allocator; 41} 42 43class GraphicBufferMapper; 44class String8; 45 46class GraphicBufferAllocator : public Singleton<GraphicBufferAllocator> 47{ 48public: 49 static inline GraphicBufferAllocator& get() { return getInstance(); } 50 51 status_t allocate(uint32_t w, uint32_t h, PixelFormat format, 52 uint32_t layerCount, uint64_t usage, 53 buffer_handle_t* handle, uint32_t* stride, uint64_t graphicBufferId, 54 std::string requestorName); 55 56 status_t free(buffer_handle_t handle); 57 58 void dump(String8& res) const; 59 static void dumpToSystemLog(); 60 61private: 62 struct alloc_rec_t { 63 uint32_t width; 64 uint32_t height; 65 uint32_t stride; 66 PixelFormat format; 67 uint32_t layerCount; 68 uint64_t usage; 69 size_t size; 70 std::string requestorName; 71 }; 72 73 static Mutex sLock; 74 static KeyedVector<buffer_handle_t, alloc_rec_t> sAllocList; 75 76 friend class Singleton<GraphicBufferAllocator>; 77 GraphicBufferAllocator(); 78 ~GraphicBufferAllocator(); 79 80 GraphicBufferMapper& mMapper; 81 const std::unique_ptr<const Gralloc2::Allocator> mAllocator; 82}; 83 84// --------------------------------------------------------------------------- 85}; // namespace android 86 87#endif // ANDROID_BUFFER_ALLOCATOR_H 88