1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifdef WITH_GLES2 17 #include "GL2Dispatch.h" 18 #include <stdio.h> 19 #include <stdlib.h> 20 #include "osDynLibrary.h" 21 22 gl2_decoder_context_t s_gl2; 23 int s_gl2_enabled; 24 25 static osUtils::dynLibrary *s_gles2_lib = NULL; 26 27 #ifdef _WIN32 28 #define DEFAULT_GLES_V2_LIB "libGLES_V2_translator" 29 #elif defined(__APPLE__) 30 #define DEFAULT_GLES_V2_LIB "libGLES_V2_translator.dylib" 31 #else 32 #define DEFAULT_GLES_V2_LIB "libGLES_V2_translator.so" 33 #endif 34 35 // 36 // This function is called only once during initialiation before 37 // any thread has been created - hence it should NOT be thread safe. 38 // 39 bool init_gl2_dispatch() 40 { 41 const char *libName = getenv("ANDROID_GLESv2_LIB"); 42 if (!libName) libName = DEFAULT_GLES_V2_LIB; 43 44 // 45 // Load the GLES library 46 // 47 s_gles2_lib = osUtils::dynLibrary::open(libName); 48 if (!s_gles2_lib) return false; 49 50 // 51 // init the GLES dispatch table 52 // 53 s_gl2.initDispatchByName( gl2_dispatch_get_proc_func, NULL ); 54 s_gl2_enabled = true; 55 return true; 56 } 57 58 // 59 // This function is called only during initialiation before 60 // any thread has been created - hence it should NOT be thread safe. 61 // 62 void *gl2_dispatch_get_proc_func(const char *name, void *userData) 63 { 64 if (!s_gles2_lib) { 65 return NULL; 66 } 67 return (void *)s_gles2_lib->findSymbol(name); 68 } 69 70 #endif 71
