Mercurial > hg > jvamp
view src/getset.cpp @ 49:2db3640905ef
Rewrite RealTime so as not to use a native object handle, removing onerous and unsatisfactory requirement to call dispose() on all RealTime objects or leak native heap
author | Chris Cannam |
---|---|
date | Wed, 02 Sep 2015 15:17:40 +0100 |
parents | 91259f3449ae |
children |
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/* jVamp A Java host interface for Vamp audio analysis plugins Centre for Digital Music, Queen Mary, University of London. Copyright 2012 Chris Cannam and QMUL. Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Except as contained in this notice, the names of the Centre for Digital Music; Queen Mary, University of London; and Chris Cannam shall not be used in advertising or otherwise to promote the sale, use or other dealings in this Software without prior written authorization. */ #include "getset.h" #include <iostream> int getIntField(JNIEnv *env, jobject obj, std::string name) { jclass cls = env->GetObjectClass(obj); return env->GetIntField(obj, env->GetFieldID(cls, name.c_str(), "I")); } Vamp::RealTime getRealTime(JNIEnv *env, jobject obj) { int s = getIntField(env, obj, "m_s"); int n = getIntField(env, obj, "m_n"); return Vamp::RealTime(s, n); } void setStringField(JNIEnv *env, jobject obj, std::string name, std::string value) { jclass cls = env->GetObjectClass(obj); env->SetObjectField(obj, env->GetFieldID(cls, name.c_str(), "Ljava/lang/String;"), env->NewStringUTF(value.c_str())); } void setFloatField(JNIEnv *env, jobject obj, std::string name, float value) { jclass cls = env->GetObjectClass(obj); env->SetFloatField(obj, env->GetFieldID(cls, name.c_str(), "F"), value); } void setBooleanField(JNIEnv *env, jobject obj, std::string name, bool value) { jclass cls = env->GetObjectClass(obj); env->SetBooleanField(obj, env->GetFieldID(cls, name.c_str(), "Z"), value); } void setIntField(JNIEnv *env, jobject obj, std::string name, int value) { jclass cls = env->GetObjectClass(obj); env->SetIntField(obj, env->GetFieldID(cls, name.c_str(), "I"), value); } void setRealTimeField(JNIEnv *env, jobject obj, std::string name, Vamp::RealTime rt) { jclass rtClass = env->FindClass("org/vamp_plugins/RealTime"); jmethodID ctor = env->GetMethodID(rtClass, "<init>", "(II)V"); jobject jrt = env->NewObject(rtClass, ctor, rt.sec, rt.nsec); setObjectField(env, obj, name, "Lorg/vamp_plugins/RealTime;", jrt); } void setObjectField(JNIEnv *env, jobject obj, std::string name, std::string type, jobject value) { jclass cls = env->GetObjectClass(obj); jfieldID field = env->GetFieldID(cls, name.c_str(), type.c_str()); env->SetObjectField(obj, field, value); } void setFloatArrayField(JNIEnv *env, jobject obj, std::string name, std::vector<float> values) { jfloatArray jarr = env->NewFloatArray(values.size()); env->SetFloatArrayRegion(jarr, 0, values.size(), values.data()); setObjectField(env, obj, name, "[F", jarr); } void setStringArrayField(JNIEnv *env, jobject obj, std::string name, std::vector<std::string> values) { jclass strCls = env->FindClass("java/lang/String"); jobjectArray jarr = env->NewObjectArray(values.size(), strCls, 0); for (int i = 0; i < (int)values.size(); ++i) { env->SetObjectArrayElement(jarr, i, env->NewStringUTF(values[i].c_str())); } setObjectField(env, obj, name, "[Ljava/lang/String;", jarr); } jmethodID getEnumValueOfMethod(JNIEnv *env) { jclass enumClass = env->FindClass("java/lang/Enum"); // Enum.valueOf(Class, String) returns Enum jmethodID valueOfMethod = env->GetStaticMethodID (enumClass, "valueOf", "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;"); return valueOfMethod; }