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      1 /*
      2  * Copyright (C) 2017 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 "host/vsoc/lib/gralloc_buffer_region_view.h"
     18 
     19 #include <memory>
     20 #include <mutex>
     21 #include "glog/logging.h"
     22 
     23 using vsoc::gralloc::GrallocBufferRegionView;
     24 
     25 uint8_t* GrallocBufferRegionView::OffsetToBufferPtr(uint32_t offset) {
     26   if (offset <= control_->region_desc().offset_of_region_data ||
     27       offset >= control_->region_size()) {
     28     LOG(FATAL)
     29         << "Attempted to access a gralloc buffer outside region data, offset: "
     30         << offset;
     31     return nullptr;
     32   }
     33   return region_offset_to_pointer<uint8_t>(offset);
     34 }
     35