| // Copyright (C) 2015 The Android Open Source Project |
| // |
| // 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. |
| |
| #ifndef GLCOMMON_GL_LIBRARY_H |
| #define GLCOMMON_GL_LIBRARY_H |
| |
| // An interface class used to model the desktop GL library to use at runtime. |
| // Use GlLibrary::getHostInstance() to retrieve the instance corresponding |
| // to the host's default system GL library. |
| class GlLibrary { |
| public: |
| // Generic pointer-to-function type. |
| typedef void (*GlFunctionPointer)(void); |
| |
| // Empty constructor. |
| GlLibrary() {} |
| |
| // Empty destructor. |
| virtual ~GlLibrary() {} |
| |
| // Find the function named |name| in the library and return its address. |
| virtual GlFunctionPointer findSymbol(const char* name) = 0; |
| }; |
| |
| #endif // GLCOMMON_GL_LIBRARY_H |