10f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh/* 20f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * Copyright (C) 2010 The Android Open Source Project 30f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * 40f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * Licensed under the Apache License, Version 2.0 (the "License"); 50f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * you may not use this file except in compliance with the License. 60f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * You may obtain a copy of the License at 70f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * 80f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * http://www.apache.org/licenses/LICENSE-2.0 90f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * 100f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * Unless required by applicable law or agreed to in writing, software 110f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * distributed under the License is distributed on an "AS IS" BASIS, 120f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 130f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * See the License for the specific language governing permissions and 140f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh * limitations under the License. 150f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh */ 160f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 170f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh#include <android/bitmap.h> 180f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh#include <jni.h> 190f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 200f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh#include <cmath> 210f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh#include <cstdlib> 220f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 230f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh#include "utils.h" 240f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh#include "_jni.h" 250f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 260f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsiehusing android::apps::photoeditor::utils::LockBitmaps; 270f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsiehusing android::apps::photoeditor::utils::pixel32_t; 280f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsiehusing android::apps::photoeditor::utils::UnlockBitmaps; 290f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 300f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsiehnamespace { 310f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 320f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsiehextern "C" JNIEXPORT void JNICALL Java_com_android_photoeditor_filters_ImageUtils_nativeQuantize( 330f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh JNIEnv *env, jobject obj, jobject src_bitmap, jobject dst_bitmap) { 340f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh pQuantizeType f = (pQuantizeType)JNIFunc[JNI_Quantize].func_ptr; 350f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh return f(env, obj, src_bitmap, dst_bitmap); 360f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh} 370f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 380f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsiehextern "C" void Quantize( 390f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh JNIEnv *env, jobject obj, jobject src_bitmap, jobject dst_bitmap) { 400f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh AndroidBitmapInfo src_info; 410f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh AndroidBitmapInfo dst_info; 420f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh void* src_pixels; 430f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh void* dst_pixels; 440f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 450f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh int ret = LockBitmaps( 460f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh env, src_bitmap, dst_bitmap, &src_info, &dst_info, &src_pixels, &dst_pixels); 470f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh if (ret < 0) { 480f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh LOGE("LockBitmaps in quantize failed, error=%d", ret); 490f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh return; 500f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh } 510f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 520f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh uint8_t quantize_map[256]; 530f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 540f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh for (uint32_t i = 0; i < 256; i++) { 550f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh quantize_map[i] = i / 128 * 128 + 64; 560f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh } 570f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 580f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh for (uint32_t scan_line = 0; scan_line < src_info.height; scan_line++) { 590f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh pixel32_t* src = reinterpret_cast<pixel32_t*>(src_pixels); 600f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh pixel32_t* dst = reinterpret_cast<pixel32_t*>(dst_pixels); 610f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 620f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh pixel32_t* src_line_end = src + src_info.width; 630f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh while (src < src_line_end) { 640f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh dst->rgba8[0] = quantize_map[src->rgba8[0]]; 650f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh dst->rgba8[1] = quantize_map[src->rgba8[1]]; 660f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh dst->rgba8[2] = quantize_map[src->rgba8[2]]; 670f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh dst->rgba8[3] = src->rgba8[3]; 680f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh dst++; 690f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh src++; 700f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh } 710f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh dst_pixels = reinterpret_cast<char*>(dst_pixels) + dst_info.stride; 720f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh src_pixels = reinterpret_cast<char*>(src_pixels) + src_info.stride; 730f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh } 740f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 750f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh UnlockBitmaps(env, src_bitmap, dst_bitmap); 760f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh} 770f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh 780f8a40e4cfdc5f6cd47c22e81f69ed0446067c54Andrew Hsieh} // namespace 79