52 lines
1.9 KiB
C++
52 lines
1.9 KiB
C++
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the 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 License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <OpenGLESDispatch/EGLDispatch.h>
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#include <dlfcn.h>
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#include <stdio.h>
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EGLDispatch s_egl;
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#define DEFAULT_EGL_LIB "libEGL_swiftshader.so"
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#define EGL_LOAD_FIELD(return_type, function_name, signature, callargs) \
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s_egl.function_name = (function_name##_t)dlsym(handle, #function_name);
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#define EGL_LOAD_FIELD_WITH_EGL(return_type, function_name, signature, callargs) \
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if ((!s_egl.function_name) && s_egl.eglGetProcAddress) \
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s_egl.function_name = (function_name##_t)s_egl.eglGetProcAddress(#function_name);
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#define EGL_LOAD_OPTIONAL_FIELD(return_type, function_name, signature, callargs) \
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if (s_egl.eglGetProcAddress) \
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s_egl.function_name = (function_name##_t)s_egl.eglGetProcAddress(#function_name); \
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if (!s_egl.function_name || !s_egl.eglGetProcAddress) \
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EGL_LOAD_FIELD(return_type, function_name, signature, callargs)
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bool egl_dispatch_init() {
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void* handle = dlopen(DEFAULT_EGL_LIB, RTLD_NOW);
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if (!handle) {
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printf("Failed to open %s\n", dlerror());
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return false;
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}
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LIST_EGL_FUNCTIONS(EGL_LOAD_FIELD)
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LIST_EGL_FUNCTIONS(EGL_LOAD_FIELD_WITH_EGL)
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LIST_EGL_EXTENSIONS_FUNCTIONS(EGL_LOAD_OPTIONAL_FIELD)
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return true;
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}
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