1 2 /* 3 * Copyright 2011 Google Inc. 4 * 5 * Use of this source code is governed by a BSD-style license that can be 6 * found in the LICENSE file. 7 */ 8 #include "SkTypes.h" 9 #if defined(SK_BUILD_FOR_MAC) 10 11 12 #include "gl/GrGLInterface.h" 13 #include "gl/GrGLAssembleInterface.h" 14 15 #include <dlfcn.h> 16 17 class GLLoader { 18 public: GLLoader()19 GLLoader() { 20 fLibrary = dlopen( 21 "/System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib", 22 RTLD_LAZY); 23 } 24 ~GLLoader()25 ~GLLoader() { 26 if (fLibrary) { 27 dlclose(fLibrary); 28 } 29 } 30 handle() const31 void* handle() const { 32 return nullptr == fLibrary ? RTLD_DEFAULT : fLibrary; 33 } 34 35 private: 36 void* fLibrary; 37 }; 38 39 class GLProcGetter { 40 public: GLProcGetter()41 GLProcGetter() {} 42 getProc(const char name[]) const43 GrGLFuncPtr getProc(const char name[]) const { 44 return (GrGLFuncPtr) dlsym(fLoader.handle(), name); 45 } 46 47 private: 48 GLLoader fLoader; 49 }; 50 mac_get_gl_proc(void * ctx,const char name[])51static GrGLFuncPtr mac_get_gl_proc(void* ctx, const char name[]) { 52 SkASSERT(ctx); 53 const GLProcGetter* getter = (const GLProcGetter*) ctx; 54 return getter->getProc(name); 55 } 56 GrGLCreateNativeInterface()57const GrGLInterface* GrGLCreateNativeInterface() { 58 GLProcGetter getter; 59 return GrGLAssembleGLInterface(&getter, mac_get_gl_proc); 60 } 61 62 #endif//defined(SK_BUILD_FOR_MAC) 63