1 /* Copyright (c) 2015-2017 The Khronos Group Inc. 2 * Copyright (c) 2015-2017 Valve Corporation 3 * Copyright (c) 2015-2017 LunarG, Inc. 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 * Author: Tobin Ehlis <tobine (at) google.com> 18 */ 19 20 #ifndef LAYER_DATA_H 21 #define LAYER_DATA_H 22 23 #include <cassert> 24 #include <unordered_map> 25 26 // For the given data key, look up the layer_data instance from given layer_data_map 27 template <typename DATA_T> 28 DATA_T *GetLayerDataPtr(void *data_key, std::unordered_map<void *, DATA_T *> &layer_data_map) { 29 DATA_T *debug_data; 30 typename std::unordered_map<void *, DATA_T *>::const_iterator got; 31 32 /* TODO: We probably should lock here, or have caller lock */ 33 got = layer_data_map.find(data_key); 34 35 if (got == layer_data_map.end()) { 36 debug_data = new DATA_T; 37 layer_data_map[(void *)data_key] = debug_data; 38 } else { 39 debug_data = got->second; 40 } 41 42 return debug_data; 43 } 44 45 template <typename DATA_T> 46 void FreeLayerDataPtr(void *data_key, std::unordered_map<void *, DATA_T *> &layer_data_map) { 47 auto got = layer_data_map.find(data_key); 48 assert(got != layer_data_map.end()); 49 50 delete got->second; 51 layer_data_map.erase(got); 52 } 53 54 #endif // LAYER_DATA_H 55
