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 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 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 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
