71 lines
2.2 KiB
C++
71 lines
2.2 KiB
C++
//
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// Copyright 2015 Pixar
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//
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// Licensed under the Apache License, Version 2.0 (the "Apache License")
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// with the following modification; you may not use this file except in
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// compliance with the Apache License and the following modification to it:
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// Section 6. Trademarks. is deleted and replaced with:
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//
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// 6. Trademarks. This License does not grant permission to use the trade
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// names, trademarks, service marks, or product names of the Licensor
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// and its affiliates, except as required to comply with Section 4(c) of
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// the License and to reproduce the content of the NOTICE file.
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//
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// You may obtain a copy of the Apache 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 Apache License with the above modification is
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// distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the Apache License for the specific
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// language governing permissions and limitations under the Apache License.
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//
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#ifndef OPENSUBDIV_EXAMPLES_SHADER_CACHE_H
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#define OPENSUBDIV_EXAMPLES_SHADER_CACHE_H
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#include <map>
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template <typename DESC_TYPE, typename CONFIG_TYPE>
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class ShaderCacheT {
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public:
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typedef DESC_TYPE DescType;
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typedef CONFIG_TYPE ConfigType;
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typedef std::map<DescType, ConfigType *> ConfigMap;
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virtual ~ShaderCacheT() {
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Reset();
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}
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void Reset() {
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for (typename ConfigMap::iterator it = _configMap.begin();
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it != _configMap.end(); ++it) {
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delete it->second;
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}
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_configMap.clear();
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}
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// fetch shader config
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ConfigType * GetDrawConfig(DescType const & desc) {
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typename ConfigMap::iterator it = _configMap.find(desc);
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if (it != _configMap.end()) {
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return it->second;
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} else {
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ConfigType * config = CreateDrawConfig(desc);
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if (config) {
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_configMap[desc] = config;
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}
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return config;
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}
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}
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virtual ConfigType *CreateDrawConfig(DescType const &desc) = 0;
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private:
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ConfigMap _configMap;
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};
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#endif // OPENSUBDIV_EXAMPLES_SHADER_CACHE_H
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