1 /* 2 * Copyright (C) 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include <cmath> 18 19 #include <mediautils/AImageReaderUtils.h> 20 #include <hidl/HybridInterface.h> 21 22 namespace android { 23 namespace aimg { 24 25 using hardware::hidl_vec; 26 27 static sp<HGraphicBufferProducer> convertNativeHandleToHGBP ( 28 const native_handle_t *handle) { 29 // Read the size of the halToken vec<uint8_t> 30 hidl_vec<uint8_t> halToken; 31 halToken.setToExternal( 32 reinterpret_cast<uint8_t *>(const_cast<int *>(&(handle->data[1]))), 33 handle->data[0]); 34 sp<HGraphicBufferProducer> hgbp = 35 HGraphicBufferProducer::castFrom(retrieveHalInterface(halToken)); 36 return hgbp; 37 } 38 39 sp<HGraphicBufferProducer> AImageReader_getHGBPFromHandle( 40 const native_handle_t *handle) { 41 if (handle == nullptr) { 42 return nullptr; 43 } 44 if (handle->numFds != 0 || 45 handle->numInts < std::ceil(sizeof(size_t) / sizeof(int))) { 46 return nullptr; 47 } 48 return convertNativeHandleToHGBP(handle); 49 } 50 51 } //namespace aimg 52 } //namespace android 53
