145 lines
5.8 KiB
C++
145 lines
5.8 KiB
C++
#include <jni.h>
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#include "opencv2/core/core.hpp"
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#include "opencv2/imgproc/imgproc.hpp"
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#include <android/bitmap.h>
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#include <android/log.h>
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#define LOG_TAG "org.opencv.android.Utils"
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#define LOGE(...) ((void)__android_log_print(ANDROID_LOG_ERROR, LOG_TAG, __VA_ARGS__))
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#ifdef DEBUG
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#define LOGD(...) ((void)__android_log_print(ANDROID_LOG_DEBUG, LOG_TAG, __VA_ARGS__))
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#else //!DEBUG
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#define LOGD(...)
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#endif //DEBUG
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using namespace cv;
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extern "C" {
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/*
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* Class: org_opencv_android_Utils
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* Method: void nBitmapToMat(Bitmap b, long m_addr)
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*/
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JNIEXPORT void JNICALL Java_org_opencv_android_Utils_nBitmapToMat
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(JNIEnv * env, jclass, jobject bitmap, jlong m_addr);
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JNIEXPORT void JNICALL Java_org_opencv_android_Utils_nBitmapToMat
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(JNIEnv * env, jclass, jobject bitmap, jlong m_addr)
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{
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AndroidBitmapInfo info;
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void* pixels = 0;
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Mat& dst = *((Mat*)m_addr);
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try {
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LOGD("nBitmapToMat");
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CV_Assert( AndroidBitmap_getInfo(env, bitmap, &info) >= 0 );
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CV_Assert( info.format == ANDROID_BITMAP_FORMAT_RGBA_8888 ||
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info.format == ANDROID_BITMAP_FORMAT_RGB_565 );
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CV_Assert( AndroidBitmap_lockPixels(env, bitmap, &pixels) >= 0 );
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CV_Assert( pixels );
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dst.create(info.height, info.width, CV_8UC4);
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if( info.format == ANDROID_BITMAP_FORMAT_RGBA_8888 )
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{
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LOGD("nBitmapToMat: RGBA_8888 -> CV_8UC4");
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Mat tmp(info.height, info.width, CV_8UC4, pixels);
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tmp.copyTo(dst);
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} else {
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// info.format == ANDROID_BITMAP_FORMAT_RGB_565
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LOGD("nBitmapToMat: RGB_565 -> CV_8UC4");
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Mat tmp(info.height, info.width, CV_8UC2, pixels);
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cvtColor(tmp, dst, CV_BGR5652RGBA);
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}
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AndroidBitmap_unlockPixels(env, bitmap);
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return;
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} catch(cv::Exception e) {
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AndroidBitmap_unlockPixels(env, bitmap);
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LOGE("nBitmapToMat catched cv::Exception: %s", e.what());
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jclass je = env->FindClass("org/opencv/core/CvException");
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if(!je) je = env->FindClass("java/lang/Exception");
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env->ThrowNew(je, e.what());
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return;
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} catch (...) {
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AndroidBitmap_unlockPixels(env, bitmap);
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LOGE("nBitmapToMat catched unknown exception (...)");
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jclass je = env->FindClass("java/lang/Exception");
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env->ThrowNew(je, "Unknown exception in JNI code {nBitmapToMat}");
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return;
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}
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}
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/*
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* Class: org_opencv_android_Utils
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* Method: void nMatToBitmap(long m_addr, Bitmap b)
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*/
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JNIEXPORT void JNICALL Java_org_opencv_android_Utils_nMatToBitmap
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(JNIEnv * env, jclass, jlong m_addr, jobject bitmap);
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JNIEXPORT void JNICALL Java_org_opencv_android_Utils_nMatToBitmap
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(JNIEnv * env, jclass, jlong m_addr, jobject bitmap)
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{
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AndroidBitmapInfo info;
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void* pixels = 0;
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Mat& dst = *((Mat*)m_addr);
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try {
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LOGD("nMatToBitmap");
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CV_Assert( AndroidBitmap_getInfo(env, bitmap, &info) >= 0 );
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CV_Assert( info.format == ANDROID_BITMAP_FORMAT_RGBA_8888 ||
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info.format == ANDROID_BITMAP_FORMAT_RGB_565 );
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CV_Assert( dst.dims == 2 && info.height == (uint32_t)dst.rows && info.width == (uint32_t)dst.cols );
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CV_Assert( dst.type() == CV_8UC1 || dst.type() == CV_8UC3 || dst.type() == CV_8UC4 );
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CV_Assert( AndroidBitmap_lockPixels(env, bitmap, &pixels) >= 0 );
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CV_Assert( pixels );
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if( info.format == ANDROID_BITMAP_FORMAT_RGBA_8888 )
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{
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Mat tmp(info.height, info.width, CV_8UC4, pixels);
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if(dst.type() == CV_8UC1)
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{
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LOGD("nMatToBitmap: CV_8UC1 -> RGBA_8888");
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cvtColor(dst, tmp, CV_GRAY2RGBA);
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} else if(dst.type() == CV_8UC3){
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LOGD("nMatToBitmap: CV_8UC3 -> RGBA_8888");
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cvtColor(dst, tmp, CV_RGB2RGBA);
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} else if(dst.type() == CV_8UC4){
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LOGD("nMatToBitmap: CV_8UC4 -> RGBA_8888");
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dst.copyTo(tmp);
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}
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} else {
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// info.format == ANDROID_BITMAP_FORMAT_RGB_565
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Mat tmp(info.height, info.width, CV_8UC2, pixels);
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if(dst.type() == CV_8UC1)
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{
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LOGD("nMatToBitmap: CV_8UC1 -> RGB_565");
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cvtColor(dst, tmp, CV_GRAY2BGR565);
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} else if(dst.type() == CV_8UC3){
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LOGD("nMatToBitmap: CV_8UC3 -> RGB_565");
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cvtColor(dst, tmp, CV_RGB2BGR565);
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} else if(dst.type() == CV_8UC4){
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LOGD("nMatToBitmap: CV_8UC4 -> RGB_565");
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cvtColor(dst, tmp, CV_RGBA2BGR565);
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}
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}
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AndroidBitmap_unlockPixels(env, bitmap);
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return;
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} catch(cv::Exception e) {
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AndroidBitmap_unlockPixels(env, bitmap);
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LOGE("nMatToBitmap catched cv::Exception: %s", e.what());
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jclass je = env->FindClass("org/opencv/core/CvException");
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if(!je) je = env->FindClass("java/lang/Exception");
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env->ThrowNew(je, e.what());
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return;
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} catch (...) {
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AndroidBitmap_unlockPixels(env, bitmap);
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LOGE("nMatToBitmap catched unknown exception (...)");
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jclass je = env->FindClass("java/lang/Exception");
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env->ThrowNew(je, "Unknown exception in JNI code {nMatToBitmap}");
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return;
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}
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}
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} // extern "C"
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