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
21I420ColorConverter::I420ColorConverter() {
22    // Open the shared library
23    mHandle = dlopen("libI420colorconvert.so", RTLD_NOW);
24
25    if (mHandle == NULL) {
26        ALOGW("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        ALOGW("I420ColorConverter: cannot load getI420ColorConverter");
36        dlclose(mHandle);
37        mHandle = NULL;
38        return;
39    }
40
41    // Fill the function pointers.
42    getI420ColorConverter(this);
43
44    ALOGI("I420ColorConverter: libI420colorconvert.so loaded");
45}
46
47bool I420ColorConverter::isLoaded() {
48    return mHandle != NULL;
49}
50
51I420ColorConverter::~I420ColorConverter() {
52    if (mHandle) {
53        dlclose(mHandle);
54    }
55}
56