1 /*------------------------------------------------------------------------- 2 * drawElements Quality Program OpenGL Utilities 3 * --------------------------------------------- 4 * 5 * Copyright 2014 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 *//*! 20 * \file 21 * \brief OpenGL wrapper implementation. 22 *//*--------------------------------------------------------------------*/ 23 24 #include "glwWrapper.hpp" 25 #include "glwFunctions.hpp" 26 #include "deThreadLocal.h" 27 28 #include <stdexcept> 29 30 DE_BEGIN_EXTERN_C 31 32 #include "glwTypes.inl" 33 #include "glwEnums.inl" 34 35 DE_END_EXTERN_C 36 37 namespace glw 38 { 39 40 #if defined(DE_THREAD_LOCAL) 41 42 // Thread-local current function table. 43 DE_THREAD_LOCAL const glw::Functions* s_functions = DE_NULL; 44 45 void setCurrentThreadFunctions (const glw::Functions* gl) 46 { 47 s_functions = gl; 48 } 49 50 inline const glw::Functions* getCurrentThreadFunctions (void) 51 { 52 return s_functions; 53 } 54 55 #else // defined(DE_THREAD_LOCAL) 56 57 namespace 58 { 59 60 class FunctionTLSPtr 61 { 62 public: 63 FunctionTLSPtr (void) 64 : m_ptr(deThreadLocal_create()) 65 { 66 if (!m_ptr) 67 throw std::runtime_error("glw: TLS allocation failed"); 68 } 69 70 inline void set (const glw::Functions* gl) 71 { 72 deThreadLocal_set(m_ptr, (void*)gl); 73 } 74 75 inline const glw::Functions* get (void) const 76 { 77 return (const glw::Functions*)deThreadLocal_get(m_ptr); 78 } 79 80 private: 81 deThreadLocal m_ptr; 82 }; 83 84 } // anonymous 85 86 // Initialized in startup. 87 static FunctionTLSPtr s_functions; 88 89 void setCurrentThreadFunctions (const glw::Functions* gl) 90 { 91 s_functions.set(gl); 92 } 93 94 inline const glw::Functions* getCurrentThreadFunctions (void) 95 { 96 return s_functions.get(); 97 } 98 99 #endif // defined(DE_THREAD_LOCAL) 100 101 } // glw 102 103 DE_BEGIN_EXTERN_C 104 105 #include "glwImpl.inl" 106 107 DE_END_EXTERN_C 108
