/* Copyright (c) 2015-2017 The Khronos Group Inc.
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* Copyright (c) 2015-2017 Valve Corporation
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* Copyright (c) 2015-2017 LunarG, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Author: Tobin Ehlis <tobine@google.com>
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*/
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#ifndef LAYER_DATA_H
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#define LAYER_DATA_H
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#include <cassert>
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#include <unordered_map>
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// For the given data key, look up the layer_data instance from given layer_data_map
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template <typename DATA_T>
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DATA_T *GetLayerDataPtr(void *data_key, std::unordered_map<void *, DATA_T *> &layer_data_map) {
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DATA_T *debug_data;
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typename std::unordered_map<void *, DATA_T *>::const_iterator got;
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/* TODO: We probably should lock here, or have caller lock */
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got = layer_data_map.find(data_key);
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if (got == layer_data_map.end()) {
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debug_data = new DATA_T;
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layer_data_map[(void *)data_key] = debug_data;
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} else {
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debug_data = got->second;
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}
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return debug_data;
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}
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template <typename DATA_T>
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void FreeLayerDataPtr(void *data_key, std::unordered_map<void *, DATA_T *> &layer_data_map) {
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auto got = layer_data_map.find(data_key);
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assert(got != layer_data_map.end());
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delete got->second;
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layer_data_map.erase(got);
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}
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#endif // LAYER_DATA_H
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