1 /* 2 * Copyright (C) 2011 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 #include <I420ColorConverter.h> 18 #include <cutils/log.h> 19 #include <dlfcn.h> 20 21 I420ColorConverter::I420ColorConverter() { 22 // Open the shared library 23 mHandle = dlopen("libI420colorconvert.so", RTLD_NOW); 24 25 if (mHandle == NULL) { 26 LOGW("I420ColorConverter: cannot load libI420colorconvert.so"); 27 return; 28 } 29 30 // Find the entry point 31 void (*getI420ColorConverter)(I420ColorConverter *converter) = 32 (void (*)(I420ColorConverter*)) dlsym(mHandle, "getI420ColorConverter"); 33 34 if (getI420ColorConverter == NULL) { 35 LOGW("I420ColorConverter: cannot load getI420ColorConverter"); 36 dlclose(mHandle); 37 mHandle = NULL; 38 return; 39 } 40 41 // Fill the function pointers. 42 getI420ColorConverter(this); 43 44 LOGI("I420ColorConverter: libI420colorconvert.so loaded"); 45 } 46 47 bool I420ColorConverter::isLoaded() { 48 return mHandle != NULL; 49 } 50 51 I420ColorConverter::~I420ColorConverter() { 52 if (mHandle) { 53 dlclose(mHandle); 54 } 55 } 56
