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