/* * Copyright (C) 2018 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. */ #include <OpenGLESDispatch/EGLDispatch.h> #include <dlfcn.h> #include <stdio.h> EGLDispatch s_egl; #define DEFAULT_EGL_LIB "libEGL_swiftshader.so" #define EGL_LOAD_FIELD(return_type, function_name, signature, callargs) \ s_egl.function_name = (function_name##_t)dlsym(handle, #function_name); #define EGL_LOAD_FIELD_WITH_EGL(return_type, function_name, signature, callargs) \ if ((!s_egl.function_name) && s_egl.eglGetProcAddress) \ s_egl.function_name = (function_name##_t)s_egl.eglGetProcAddress(#function_name); #define EGL_LOAD_OPTIONAL_FIELD(return_type, function_name, signature, callargs) \ if (s_egl.eglGetProcAddress) \ s_egl.function_name = (function_name##_t)s_egl.eglGetProcAddress(#function_name); \ if (!s_egl.function_name || !s_egl.eglGetProcAddress) \ EGL_LOAD_FIELD(return_type, function_name, signature, callargs) bool egl_dispatch_init() { void* handle = dlopen(DEFAULT_EGL_LIB, RTLD_NOW); if (!handle) { printf("Failed to open %s\n", dlerror()); return false; } LIST_EGL_FUNCTIONS(EGL_LOAD_FIELD) LIST_EGL_FUNCTIONS(EGL_LOAD_FIELD_WITH_EGL) LIST_EGL_EXTENSIONS_FUNCTIONS(EGL_LOAD_OPTIONAL_FIELD) return true; }