1 /* 2 ** Copyright 2009, 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 17 #ifndef ANDROID_EGL_LOADER_H 18 #define ANDROID_EGL_LOADER_H 19 20 #include <ctype.h> 21 #include <string.h> 22 #include <errno.h> 23 24 #include <utils/Errors.h> 25 #include <utils/Singleton.h> 26 #include <utils/String8.h> 27 #include <utils/Vector.h> 28 29 #include <EGL/egl.h> 30 31 // ---------------------------------------------------------------------------- 32 namespace android { 33 // ---------------------------------------------------------------------------- 34 35 struct egl_connection_t; 36 37 class Loader : public Singleton<Loader> 38 { 39 friend class Singleton<Loader>; 40 41 typedef __eglMustCastToProperFunctionPointerType (*getProcAddressType)( 42 const char*); 43 44 enum { 45 EGL = 0x01, 46 GLESv1_CM = 0x02, 47 GLESv2 = 0x04 48 }; 49 struct driver_t { 50 driver_t(void* gles); 51 ~driver_t(); 52 status_t set(void* hnd, int32_t api); 53 void* dso[3]; 54 }; 55 56 struct entry_t { 57 entry_t() { } 58 entry_t(int dpy, int impl, const char* tag); 59 int dpy; 60 int impl; 61 String8 tag; 62 }; 63 64 Vector<entry_t> gConfig; 65 getProcAddressType getProcAddress; 66 67 const char* getTag(int dpy, int impl); 68 69 public: 70 ~Loader(); 71 72 void* open(EGLNativeDisplayType display, int impl, egl_connection_t* cnx); 73 status_t close(void* driver); 74 75 private: 76 Loader(); 77 void *load_driver(const char* kind, const char *tag, egl_connection_t* cnx, uint32_t mask); 78 79 static __attribute__((noinline)) 80 void init_api(void* dso, 81 char const * const * api, 82 __eglMustCastToProperFunctionPointerType* curr, 83 getProcAddressType getProcAddress); 84 }; 85 86 // ---------------------------------------------------------------------------- 87 }; // namespace android 88 // ---------------------------------------------------------------------------- 89 90 #endif /* ANDROID_EGL_LOADER_H */ 91
