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 28#include <EGL/egl.h> 29 30// ---------------------------------------------------------------------------- 31namespace android { 32// ---------------------------------------------------------------------------- 33 34struct egl_connection_t; 35 36class Loader : public Singleton<Loader> 37{ 38 friend class Singleton<Loader>; 39 40 typedef __eglMustCastToProperFunctionPointerType (*getProcAddressType)( 41 const char*); 42 43 enum { 44 EGL = 0x01, 45 GLESv1_CM = 0x02, 46 GLESv2 = 0x04 47 }; 48 struct driver_t { 49 driver_t(void* gles); 50 ~driver_t(); 51 status_t set(void* hnd, int32_t api); 52 void* dso[3]; 53 }; 54 55 getProcAddressType getProcAddress; 56 57public: 58 ~Loader(); 59 60 void* open(egl_connection_t* cnx); 61 status_t close(void* driver); 62 63private: 64 Loader(); 65 void *load_driver(const char* kind, egl_connection_t* cnx, uint32_t mask); 66 67 static __attribute__((noinline)) 68 void init_api(void* dso, 69 char const * const * api, 70 __eglMustCastToProperFunctionPointerType* curr, 71 getProcAddressType getProcAddress); 72}; 73 74// ---------------------------------------------------------------------------- 75}; // namespace android 76// ---------------------------------------------------------------------------- 77 78#endif /* ANDROID_EGL_LOADER_H */ 79