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 <android/bitmap.h> 18 #include <jni.h> 19 20 #include "utils.h" 21 #include "_jni.h" 22 23 using android::apps::photoeditor::utils::LockBitmaps; 24 using android::apps::photoeditor::utils::pixel32_t; 25 using android::apps::photoeditor::utils::UnlockBitmaps; 26 27 namespace { 28 29 extern "C" JNIEXPORT void JNICALL Java_com_android_photoeditor_filters_ImageUtils_nativeSepia( 30 JNIEnv *env, jobject obj, jobject src_bitmap, jobject dst_bitmap) { 31 pSepiaType f = (pSepiaType)JNIFunc[JNI_Sepia].func_ptr; 32 return f(env, obj, src_bitmap, dst_bitmap); 33 } 34 35 extern "C" void Sepia( 36 JNIEnv *env, jobject obj, jobject src_bitmap, jobject dst_bitmap) { 37 AndroidBitmapInfo src_info; 38 AndroidBitmapInfo dst_info; 39 void* src_pixels; 40 void* dst_pixels; 41 42 int ret = LockBitmaps( 43 env, src_bitmap, dst_bitmap, &src_info, &dst_info, &src_pixels, &dst_pixels); 44 if (ret < 0) { 45 LOGE("LockBitmaps in Sepia failed, error=%d", ret); 46 return; 47 } 48 49 for (uint32_t scan_line = 0; scan_line < dst_info.height; scan_line++) { 50 uint32_t* dst = reinterpret_cast<uint32_t*>(dst_pixels); 51 pixel32_t* src = reinterpret_cast<pixel32_t*>(src_pixels); 52 pixel32_t* src_line_end = src + src_info.width; 53 while (src < src_line_end) { 54 int dst_red = (src->rgba8[0] * 805 + src->rgba8[1] * 1575 + src->rgba8[2] * 387) >> 11; 55 int dst_green = (src->rgba8[0] * 715 + src->rgba8[1] * 1405 + src->rgba8[2] * 344) >> 11; 56 int dst_blue = (src->rgba8[0] * 557 + src->rgba8[1] * 1094 + src->rgba8[2] * 268) >> 11; 57 58 if (dst_red > 255) { 59 dst_red = 255; 60 } 61 if (dst_green > 255) { 62 dst_green = 255; 63 } 64 if (dst_blue > 255) { 65 dst_blue = 255; 66 } 67 68 *dst = (src->rgba8[3] << 24) | (dst_blue << 16) | (dst_green << 8) | dst_red; 69 dst++; 70 src++; 71 } 72 dst_pixels = reinterpret_cast<char*>(dst_pixels) + dst_info.stride; 73 src_pixels = reinterpret_cast<char*>(src_pixels) + src_info.stride; 74 } 75 76 UnlockBitmaps(env, src_bitmap, dst_bitmap); 77 } 78 79 } // namespace 80
