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 #ifndef PHOTOEDITOR_JNI_UTILS_H_
18 #define PHOTOEDITOR_JNI_UTILS_H_
19
20 #include <android/bitmap.h>
21 #include <android/log.h>
22 #include <jni.h>
23
24 #define LOG_TAG "libjni_photoeditor"
25 #define LOGI(...) __android_log_print(ANDROID_LOG_INFO, LOG_TAG, __VA_ARGS__)
26 #define LOGE(...) __android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__)
27
28 #define MIN3(x, y, z) ((y) <= (z) ? \
29 ((x) <= (y) ? (x) : (y)) \
30 : \
31 ((x) <= (z) ? (x) : (z)))
32
33 #define MAX3(x, y, z) ((y) >= (z) ? \
34 ((x) >= (y) ? (x) : (y)) \
35 : \
36 ((x) >= (z) ? (x) : (z)))
37
38 namespace android {
39 namespace apps {
40 namespace photoeditor {
41 namespace utils {
42
clamp(int x,int min,int max)43 inline int clamp(int x, int min, int max) {
44 return (x < min ? min : ((x > max) ? max : x));
45 }
46
47 union pixel32_t {
48 uint32_t rgba32;
49 uint8_t rgba8[4]; // 0: red 1:green 2:blue 3:alpha
50 };
51
52 typedef union pixel32_t pixel32_t;
53
54 int ExtractInfoFromBitmap(JNIEnv *env,
55 AndroidBitmapInfo *src_info, AndroidBitmapInfo *dst_info,
56 jobject src_bitmap, jobject dst_bitmap);
57
58 int LockBitmaps(JNIEnv* env, jobject src_bitmap, jobject dst_bitmap,
59 AndroidBitmapInfo* src_info, AndroidBitmapInfo* dst_info,
60 void** src_pixels, void** dst_pixels);
61
62 void UnlockBitmaps(JNIEnv* env, jobject src_bitmap, jobject dst_bitmap);
63
64 } // namespace utils
65 } // namespace photoeditor
66 } // namespace apps
67 } // namespace android
68
69
70 #endif // PHOTOEDITOR_JNI_UTILS_H_
71