1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef libEGL_hpp 16 #define libEGL_hpp 17 18 #include <EGL/egl.h> 19 #include <EGL/eglext.h> 20 21 #include "Common/SharedLibrary.hpp" 22 23 class LibEGLexports 24 { 25 public: 26 LibEGLexports(); 27 28 EGLint (*eglGetError)(void); 29 EGLDisplay (*eglGetDisplay)(EGLNativeDisplayType display_id); 30 EGLBoolean (*eglInitialize)(EGLDisplay dpy, EGLint *major, EGLint *minor); 31 EGLBoolean (*eglTerminate)(EGLDisplay dpy); 32 const char *(*eglQueryString)(EGLDisplay dpy, EGLint name); 33 EGLBoolean (*eglGetConfigs)(EGLDisplay dpy, EGLConfig *configs, EGLint config_size, EGLint *num_config); 34 EGLBoolean (*eglChooseConfig)(EGLDisplay dpy, const EGLint *attrib_list, EGLConfig *configs, EGLint config_size, EGLint *num_config); 35 EGLBoolean (*eglGetConfigAttrib)(EGLDisplay dpy, EGLConfig config, EGLint attribute, EGLint *value); 36 EGLSurface (*eglCreateWindowSurface)(EGLDisplay dpy, EGLConfig config, EGLNativeWindowType window, const EGLint *attrib_list); 37 EGLSurface (*eglCreatePbufferSurface)(EGLDisplay dpy, EGLConfig config, const EGLint *attrib_list); 38 EGLSurface (*eglCreatePixmapSurface)(EGLDisplay dpy, EGLConfig config, EGLNativePixmapType pixmap, const EGLint *attrib_list); 39 EGLBoolean (*eglDestroySurface)(EGLDisplay dpy, EGLSurface surface); 40 EGLBoolean (*eglQuerySurface)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint *value); 41 EGLBoolean (*eglBindAPI)(EGLenum api); 42 EGLenum (*eglQueryAPI)(void); 43 EGLBoolean (*eglWaitClient)(void); 44 EGLBoolean (*eglReleaseThread)(void); 45 EGLSurface (*eglCreatePbufferFromClientBuffer)(EGLDisplay dpy, EGLenum buftype, EGLClientBuffer buffer, EGLConfig config, const EGLint *attrib_list); 46 EGLBoolean (*eglSurfaceAttrib)(EGLDisplay dpy, EGLSurface surface, EGLint attribute, EGLint value); 47 EGLBoolean (*eglBindTexImage)(EGLDisplay dpy, EGLSurface surface, EGLint buffer); 48 EGLBoolean (*eglReleaseTexImage)(EGLDisplay dpy, EGLSurface surface, EGLint buffer); 49 EGLBoolean (*eglSwapInterval)(EGLDisplay dpy, EGLint interval); 50 EGLContext (*eglCreateContext)(EGLDisplay dpy, EGLConfig config, EGLContext share_context, const EGLint *attrib_list); 51 EGLBoolean (*eglDestroyContext)(EGLDisplay dpy, EGLContext ctx); 52 EGLBoolean (*eglMakeCurrent)(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx); 53 EGLContext (*eglGetCurrentContext)(void); 54 EGLSurface (*eglGetCurrentSurface)(EGLint readdraw); 55 EGLDisplay (*eglGetCurrentDisplay)(void); 56 EGLBoolean (*eglQueryContext)(EGLDisplay dpy, EGLContext ctx, EGLint attribute, EGLint *value); 57 EGLBoolean (*eglWaitGL)(void); 58 EGLBoolean (*eglWaitNative)(EGLint engine); 59 EGLBoolean (*eglSwapBuffers)(EGLDisplay dpy, EGLSurface surface); 60 EGLBoolean (*eglCopyBuffers)(EGLDisplay dpy, EGLSurface surface, EGLNativePixmapType target); 61 EGLImageKHR (*eglCreateImageKHR)(EGLDisplay dpy, EGLContext ctx, EGLenum target, EGLClientBuffer buffer, const EGLint *attrib_list); 62 EGLBoolean (*eglDestroyImageKHR)(EGLDisplay dpy, EGLImageKHR image); 63 __eglMustCastToProperFunctionPointerType (*eglGetProcAddress)(const char*); 64 EGLSyncKHR (*eglCreateSyncKHR)(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list); 65 EGLBoolean (*eglDestroySyncKHR)(EGLDisplay dpy, EGLSyncKHR sync); 66 EGLint (*eglClientWaitSyncKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout); 67 EGLBoolean (*eglGetSyncAttribKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint attribute, EGLint *value); 68 69 // Functions that don't change the error code, for use by client APIs 70 egl::Context *(*clientGetCurrentContext)(); 71 }; 72 73 class LibEGL 74 { 75 public: 76 LibEGL() 77 { 78 } 79 80 ~LibEGL() 81 { 82 freeLibrary(libEGL); 83 } 84 85 LibEGLexports *operator->() 86 { 87 return loadExports(); 88 } 89 90 private: 91 LibEGLexports *loadExports() 92 { 93 if(!loadLibraryAttempted && !libEGL) 94 { 95 #if defined(_WIN32) 96 #if defined(__LP64__) 97 const char *libEGL_lib[] = {"libEGL.dll", "lib64EGL_translator.dll"}; 98 #else 99 const char *libEGL_lib[] = {"libEGL.dll", "libEGL_translator.dll"}; 100 #endif 101 #elif defined(__ANDROID__) 102 const char *libEGL_lib[] = {"libEGL_swiftshader.so", "libEGL_swiftshader.so"}; 103 #elif defined(__linux__) 104 #if defined(__LP64__) 105 const char *libEGL_lib[] = {"lib64EGL_translator.so", "libEGL.so.1", "libEGL.so"}; 106 #else 107 const char *libEGL_lib[] = {"libEGL_translator.so", "libEGL.so.1", "libEGL.so"}; 108 #endif 109 #elif defined(__APPLE__) 110 #if defined(__LP64__) 111 const char *libEGL_lib[] = {"libswiftshader_libEGL.dylib", "lib64EGL_translator.dylib", "libEGL.so", "libEGL.dylib"}; 112 #else 113 const char *libEGL_lib[] = {"libswiftshader_libEGL.dylib", "libEGL_translator.dylib", "libEGL.so", "libEGL.dylib"}; 114 #endif 115 #elif defined(__Fuchsia__) 116 const char *libEGL_lib[] = {"libswiftshader_libEGL.so", "libEGL.so"}; 117 #else 118 #error "libEGL::loadExports unimplemented for this platform" 119 #endif 120 121 std::string directory = getModuleDirectory(); 122 libEGL = loadLibrary(directory, libEGL_lib, "libEGL_swiftshader"); 123 124 if(libEGL) 125 { 126 auto libEGL_swiftshader = (LibEGLexports *(*)())getProcAddress(libEGL, "libEGL_swiftshader"); 127 libEGLexports = libEGL_swiftshader(); 128 } 129 130 loadLibraryAttempted = true; 131 } 132 133 return libEGLexports; 134 } 135 136 void *libEGL = nullptr; 137 LibEGLexports *libEGLexports = nullptr; 138 bool loadLibraryAttempted = false; 139 }; 140 141 #endif // libEGL_hpp 142
