1 /* 2 * Copyright (c) 2011-2016, The Linux Foundation. All rights reserved. 3 * Not a Contribution 4 * 5 * Copyright (C) 2008 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 #ifndef __GR_BUF_MGR_H__ 21 #define __GR_BUF_MGR_H__ 22 23 #include <pthread.h> 24 #include <unordered_map> 25 #include <mutex> 26 27 #include "gralloc_priv.h" 28 #include "gr_allocator.h" 29 30 namespace gralloc1 { 31 32 class BufferManager { 33 public: 34 BufferManager(); 35 ~BufferManager(); 36 bool Init(); 37 gralloc1_error_t AllocateBuffers(uint32_t numDescriptors, const BufferDescriptor *descriptors, 38 buffer_handle_t *outBuffers); 39 gralloc1_error_t RetainBuffer(private_handle_t const *hnd); 40 gralloc1_error_t ReleaseBuffer(private_handle_t const *hnd); 41 gralloc1_error_t LockBuffer(const private_handle_t *hnd, gralloc1_producer_usage_t prod_usage, 42 gralloc1_consumer_usage_t cons_usage); 43 gralloc1_error_t UnlockBuffer(const private_handle_t *hnd); 44 gralloc1_error_t Perform(int operation, va_list args); 45 46 private: 47 gralloc1_error_t MapBuffer(private_handle_t const *hnd); 48 gralloc1_error_t FreeBuffer(private_handle_t const *hnd); 49 int GetBufferType(int format); 50 int AllocateBuffer(const BufferDescriptor &descriptor, buffer_handle_t *handle, 51 unsigned int bufferSize = 0); 52 int AllocateBuffer(unsigned int size, int aligned_w, int aligned_h, int unaligned_w, 53 int unaligned_h, int format, int bufferType, 54 gralloc1_producer_usage_t prod_usage, gralloc1_consumer_usage_t cons_usage, 55 buffer_handle_t *handle); 56 int GetDataAlignment(int format, gralloc1_producer_usage_t prod_usage, 57 gralloc1_consumer_usage_t cons_usage); 58 int GetHandleFlags(int format, gralloc1_producer_usage_t prod_usage, 59 gralloc1_consumer_usage_t cons_usage); 60 void CreateSharedHandle(buffer_handle_t inbuffer, const BufferDescriptor &descriptor, 61 buffer_handle_t *out_buffer); 62 63 bool map_fb_mem_ = false; 64 bool ubwc_for_fb_ = false; 65 Allocator *allocator_ = NULL; 66 std::mutex locker_; 67 std::unordered_map<private_handle_t const *, int> handles_map_ = {}; 68 }; 69 70 } // namespace gralloc1 71 72 #endif // __GR_BUF_MGR_H__ 73
