1 /*
2 * Copyright (C) 2010 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 "utils.h"
18
19 #include <android/bitmap.h>
20
21 namespace android {
22 namespace apps {
23 namespace photoeditor {
24 namespace utils {
25
ExtractInfoFromBitmap(JNIEnv * env,AndroidBitmapInfo * src_info,AndroidBitmapInfo * dst_info,jobject src_bitmap,jobject dst_bitmap)26 int ExtractInfoFromBitmap(JNIEnv *env,
27 AndroidBitmapInfo *src_info, AndroidBitmapInfo *dst_info,
28 jobject src_bitmap, jobject dst_bitmap) {
29 int ret;
30 /*
31 * The info->format of both bitmap should be ANDROID_BITMAP_FORMAT_RGBA_8888.
32 * Both bitmaps shall also be in the same dimension.
33 */
34 if ((ret = AndroidBitmap_getInfo(env, src_bitmap, src_info)) < 0) {
35 LOGE("AndroidBitmap_getInfo(src_bitmap) failed, error=%d", ret);
36 return ret;
37 }
38 if ((ret = AndroidBitmap_getInfo(env, dst_bitmap, dst_info)) < 0) {
39 LOGE("AndroidBitmap_getInfo(dst_bitmap) failed, error=%d", ret);
40 return ret;
41 }
42 return 0;
43 }
44
LockBitmaps(JNIEnv * env,jobject src_bitmap,jobject dst_bitmap,AndroidBitmapInfo * src_info,AndroidBitmapInfo * dst_info,void ** src_pixels,void ** dst_pixels)45 int LockBitmaps(JNIEnv* env, jobject src_bitmap, jobject dst_bitmap,
46 AndroidBitmapInfo* src_info, AndroidBitmapInfo* dst_info,
47 void** src_pixels, void** dst_pixels) {
48 int ret;
49 if ((ret = ExtractInfoFromBitmap(env, src_info, dst_info, src_bitmap, dst_bitmap)) < 0) {
50 return ret;
51 }
52 if ((ret = AndroidBitmap_lockPixels(env, src_bitmap, src_pixels)) < 0) {
53 LOGE("AndroidBitmap_lockPixels(src_bitmap) failed, error=%d", ret);
54 return ret;
55 }
56 if ((ret = AndroidBitmap_lockPixels(env, dst_bitmap, dst_pixels)) < 0) {
57 LOGE("AndroidBitmap_lockPixels(dst_bitmap) failed, error=%d", ret);
58 AndroidBitmap_unlockPixels(env, src_bitmap);
59 return ret;
60 }
61 return 0;
62 }
63
UnlockBitmaps(JNIEnv * env,jobject src_bitmap,jobject dst_bitmap)64 void UnlockBitmaps(JNIEnv* env, jobject src_bitmap, jobject dst_bitmap) {
65 AndroidBitmap_unlockPixels(env, src_bitmap);
66 AndroidBitmap_unlockPixels(env, dst_bitmap);
67 }
68
69 } // namespace utils
70 } // namespace photoeditor
71 } // namespace apps
72 } // namespace android
73
74