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Introduce option to generate Java code with finalize() or Cleaners interface #28159 Closes https://github.com/opencv/opencv/issues/22260 Replaces https://github.com/opencv/opencv/pull/23467 The PR introduce configuration option to generate Java code with Cleaner interface for Java 9+ and old-fashion finalize() method for old Java and Android. Mat class and derivatives are manually written. The PR introduce 2 base classes for it depending on the generator configuration. Pros: 1. No need to implement complex and error prone cleaner on library side. 2. No new CMake templates, easier to modify code in IDE. Cons: 1. More generator branches and different code for modern desktop and Android. TODO: - [x] Add Java version check to cmake - [x] Use Cleaners for ANDROID API 33+ ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [ ] The PR is proposed to the proper branch - [ ] There is a reference to the original bug report and related work - [ ] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [ ] The feature is well documented and sample code can be built with the project CMake
29 lines
781 B
C++
29 lines
781 B
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html
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#include "opencv2/core.hpp"
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#define LOG_TAG "org.opencv.core.CleanableMat"
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#include "common.h"
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#include <iostream>
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using namespace cv;
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extern "C" {
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//
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// native support for java finalize() or cleaners
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// static void CleanableMat::n_delete( __int64 self )
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//
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JNIEXPORT void JNICALL Java_org_opencv_core_CleanableMat_n_1delete
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(JNIEnv*, jclass, jlong self);
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JNIEXPORT void JNICALL Java_org_opencv_core_CleanableMat_n_1delete
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(JNIEnv*, jclass, jlong self)
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{
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// LOGD("CleanableMat.n_delete() called\n");
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delete (Mat*) self;
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}
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}
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