Chris@37: /*
Chris@37:     jVamp
Chris@37: 
Chris@37:     A Java host interface for Vamp audio analysis plugins
Chris@37: 
Chris@37:     Centre for Digital Music, Queen Mary, University of London.
Chris@37:     Copyright 2012 Chris Cannam and QMUL.
Chris@37:   
Chris@37:     Permission is hereby granted, free of charge, to any person
Chris@37:     obtaining a copy of this software and associated documentation
Chris@37:     files (the "Software"), to deal in the Software without
Chris@37:     restriction, including without limitation the rights to use, copy,
Chris@37:     modify, merge, publish, distribute, sublicense, and/or sell copies
Chris@37:     of the Software, and to permit persons to whom the Software is
Chris@37:     furnished to do so, subject to the following conditions:
Chris@37: 
Chris@37:     The above copyright notice and this permission notice shall be
Chris@37:     included in all copies or substantial portions of the Software.
Chris@37: 
Chris@37:     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
Chris@37:     EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
Chris@37:     MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
Chris@37:     NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
Chris@37:     ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
Chris@37:     CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
Chris@37:     WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Chris@37: 
Chris@37:     Except as contained in this notice, the names of the Centre for
Chris@37:     Digital Music; Queen Mary, University of London; and Chris Cannam
Chris@37:     shall not be used in advertising or otherwise to promote the sale,
Chris@37:     use or other dealings in this Software without prior written
Chris@37:     authorization.
Chris@37: */
Chris@7: 
Chris@7: #include "getset.h"
Chris@7: 
Chris@7: #include <iostream>
Chris@7: 
Chris@10: int
Chris@10: getIntField(JNIEnv *env, jobject obj, std::string name)
Chris@10: {
Chris@10:     jclass cls = env->GetObjectClass(obj);
Chris@12:     return env->GetIntField(obj,
Chris@12: 			    env->GetFieldID(cls, name.c_str(), "I"));
Chris@10: }
Chris@10: 
Chris@49: Vamp::RealTime
Chris@49: getRealTime(JNIEnv *env, jobject obj)
Chris@49: {
Chris@49:     int s = getIntField(env, obj, "m_s");
Chris@49:     int n = getIntField(env, obj, "m_n");
Chris@49:     return Vamp::RealTime(s, n);
Chris@49: }
Chris@49: 
Chris@7: void
Chris@7: setStringField(JNIEnv *env, jobject obj, std::string name, std::string value)
Chris@7: {
Chris@7:     jclass cls = env->GetObjectClass(obj);
Chris@7:     env->SetObjectField(obj,
Chris@7: 			env->GetFieldID(cls, name.c_str(), "Ljava/lang/String;"),
Chris@7: 			env->NewStringUTF(value.c_str()));
Chris@7: }
Chris@7: 
Chris@7: void
Chris@7: setFloatField(JNIEnv *env, jobject obj, std::string name, float value)
Chris@7: {
Chris@7:     jclass cls = env->GetObjectClass(obj);
Chris@7:     env->SetFloatField(obj,
Chris@7: 		       env->GetFieldID(cls, name.c_str(), "F"),
Chris@7: 		       value);
Chris@7: }
Chris@7: 
Chris@7: void
Chris@7: setBooleanField(JNIEnv *env, jobject obj, std::string name, bool value)
Chris@7: {
Chris@7:     jclass cls = env->GetObjectClass(obj);
Chris@7:     env->SetBooleanField(obj,
Chris@7: 			 env->GetFieldID(cls, name.c_str(), "Z"),
Chris@7: 			 value);
Chris@7: }
Chris@7: 
Chris@7: void
Chris@7: setIntField(JNIEnv *env, jobject obj, std::string name, int value)
Chris@7: {
Chris@7:     jclass cls = env->GetObjectClass(obj);
Chris@7:     env->SetIntField(obj,
Chris@7: 		     env->GetFieldID(cls, name.c_str(), "I"),
Chris@7: 		     value);
Chris@7: }
Chris@7: 
Chris@7: void
Chris@14: setRealTimeField(JNIEnv *env, jobject obj, std::string name, Vamp::RealTime rt)
Chris@14: {
Chris@14:     jclass rtClass = env->FindClass("org/vamp_plugins/RealTime");
Chris@14:     jmethodID ctor = env->GetMethodID(rtClass, "<init>", "(II)V");
Chris@14:     jobject jrt = env->NewObject(rtClass, ctor, rt.sec, rt.nsec);
Chris@14:     setObjectField(env, obj, name, "Lorg/vamp_plugins/RealTime;", jrt);
Chris@14: }
Chris@14: 
Chris@14: void
Chris@7: setObjectField(JNIEnv *env, jobject obj, std::string name, std::string type, jobject value)
Chris@7: {
Chris@7:     jclass cls = env->GetObjectClass(obj);
Chris@7:     jfieldID field = env->GetFieldID(cls, name.c_str(), type.c_str());
Chris@7:     env->SetObjectField(obj, field, value);
Chris@7: }
Chris@7: 
Chris@7: void
Chris@14: setFloatArrayField(JNIEnv *env, jobject obj, std::string name, std::vector<float> values)
Chris@14: {
Chris@14:     jfloatArray jarr = env->NewFloatArray(values.size());
Chris@14:     env->SetFloatArrayRegion(jarr, 0, values.size(), values.data());
Chris@18:     setObjectField(env, obj, name, "[F", jarr);
Chris@14: }
Chris@14: 
Chris@14: void
Chris@7: setStringArrayField(JNIEnv *env, jobject obj, std::string name, std::vector<std::string> values)
Chris@7: {
Chris@7:     jclass strCls = env->FindClass("java/lang/String");
Chris@7:     jobjectArray jarr = env->NewObjectArray(values.size(), strCls, 0);
chris@46:     for (int i = 0; i < (int)values.size(); ++i) {
Chris@7: 	env->SetObjectArrayElement(jarr, i, env->NewStringUTF(values[i].c_str()));
Chris@7:     }
Chris@7:     setObjectField(env, obj, name, "[Ljava/lang/String;", jarr);
Chris@7: }
Chris@7: 
Chris@7: jmethodID
Chris@7: getEnumValueOfMethod(JNIEnv *env)
Chris@7: {
Chris@7:     jclass enumClass = env->FindClass("java/lang/Enum");
Chris@7: 
Chris@7:     // Enum.valueOf(Class, String) returns Enum
Chris@7:     jmethodID valueOfMethod = env->GetStaticMethodID
Chris@7: 	(enumClass, "valueOf",
Chris@7: 	 "(Ljava/lang/Class;Ljava/lang/String;)Ljava/lang/Enum;");
Chris@7: 
Chris@7:     return valueOfMethod;
Chris@7: }
Chris@7: