mirror of https://github.com/axmolengine/axmol.git
249 lines
9.0 KiB
C++
249 lines
9.0 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2014 Chukong Technologies Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __ANDROID_JNI_HELPER_H__
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#define __ANDROID_JNI_HELPER_H__
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#include <jni.h>
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#include <string>
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#include <vector>
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#include <unordered_map>
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#include "platform/CCPlatformMacros.h"
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NS_CC_BEGIN
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typedef struct JniMethodInfo_
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{
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JNIEnv * env;
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jclass classID;
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jmethodID methodID;
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} JniMethodInfo;
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class CC_DLL JniHelper
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{
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public:
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static void setJavaVM(JavaVM *javaVM);
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static JavaVM* getJavaVM();
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static JNIEnv* getEnv();
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static bool setClassLoaderFrom(jobject activityInstance);
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static bool getStaticMethodInfo(JniMethodInfo &methodinfo,
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const char *className,
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const char *methodName,
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const char *paramCode);
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static bool getMethodInfo(JniMethodInfo &methodinfo,
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const char *className,
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const char *methodName,
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const char *paramCode);
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static std::string jstring2string(jstring str);
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static jmethodID loadclassMethod_methodID;
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static jobject classloader;
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template <typename... Ts>
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static void callStaticVoidMethod(const std::string& className,
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const std::string& methodName,
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Ts... xs) {
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cocos2d::JniMethodInfo t;
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std::string signature = "(" + std::string(getJNISignature(xs...)) + ")V";
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if (cocos2d::JniHelper::getStaticMethodInfo(t, className.c_str(), methodName.c_str(), signature.c_str())) {
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t.env->CallStaticVoidMethod(t.classID, t.methodID, convert(t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env);
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} else {
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reportError(className, methodName, signature);
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}
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}
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template <typename... Ts>
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static bool callStaticBooleanMethod(const std::string& className,
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const std::string& methodName,
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Ts... xs) {
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jboolean jret = JNI_FALSE;
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cocos2d::JniMethodInfo t;
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std::string signature = "(" + std::string(getJNISignature(xs...)) + ")Z";
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if (cocos2d::JniHelper::getStaticMethodInfo(t, className.c_str(), methodName.c_str(), signature.c_str())) {
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jret = t.env->CallStaticBooleanMethod(t.classID, t.methodID, convert(t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env);
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} else {
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reportError(className, methodName, signature);
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}
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return (jret == JNI_TRUE);
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}
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template <typename... Ts>
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static int callStaticIntMethod(const std::string& className,
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const std::string& methodName,
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Ts... xs) {
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jint ret = 0;
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cocos2d::JniMethodInfo t;
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std::string signature = "(" + std::string(getJNISignature(xs...)) + ")I";
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if (cocos2d::JniHelper::getStaticMethodInfo(t, className.c_str(), methodName.c_str(), signature.c_str())) {
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ret = t.env->CallStaticIntMethod(t.classID, t.methodID, convert(t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env);
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} else {
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reportError(className, methodName, signature);
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}
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return ret;
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}
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template <typename... Ts>
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static float callStaticFloatMethod(const std::string& className,
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const std::string& methodName,
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Ts... xs) {
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jfloat ret = 0.0;
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cocos2d::JniMethodInfo t;
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std::string signature = "(" + std::string(getJNISignature(xs...)) + ")F";
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if (cocos2d::JniHelper::getStaticMethodInfo(t, className.c_str(), methodName.c_str(), signature.c_str())) {
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ret = t.env->CallStaticFloatMethod(t.classID, t.methodID, convert(t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env);
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} else {
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reportError(className, methodName, signature);
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}
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return ret;
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}
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template <typename... Ts>
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static double callStaticDoubleMethod(const std::string& className,
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const std::string& methodName,
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Ts... xs) {
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jdouble ret = 0.0;
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cocos2d::JniMethodInfo t;
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std::string signature = "(" + std::string(getJNISignature(xs...)) + ")D";
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if (cocos2d::JniHelper::getStaticMethodInfo(t, className.c_str(), methodName.c_str(), signature.c_str())) {
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ret = t.env->CallStaticDoubleMethod(t.classID, t.methodID, convert(t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env);
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} else {
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reportError(className, methodName, signature);
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}
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return ret;
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}
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template <typename... Ts>
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static std::string callStaticStringMethod(const std::string& className,
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const std::string& methodName,
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Ts... xs) {
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std::string ret;
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cocos2d::JniMethodInfo t;
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std::string signature = "(" + std::string(getJNISignature(xs...)) + ")Ljava/lang/String;";
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if (cocos2d::JniHelper::getStaticMethodInfo(t, className.c_str(), methodName.c_str(), signature.c_str())) {
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jstring jret = (jstring)t.env->CallStaticObjectMethod(t.classID, t.methodID, convert(t, xs)...);
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ret = cocos2d::JniHelper::jstring2string(jret);
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t.env->DeleteLocalRef(t.classID);
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t.env->DeleteLocalRef(jret);
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deleteLocalRefs(t.env);
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} else {
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reportError(className, methodName, signature);
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}
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return ret;
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}
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private:
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static JNIEnv* cacheEnv(JavaVM* jvm);
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static bool getMethodInfo_DefaultClassLoader(JniMethodInfo &methodinfo,
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const char *className,
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const char *methodName,
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const char *paramCode);
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static JavaVM* _psJavaVM;
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static jstring convert(cocos2d::JniMethodInfo& t, const char* x);
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static jstring convert(cocos2d::JniMethodInfo& t, const std::string& x);
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template <typename T>
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static T convert(cocos2d::JniMethodInfo&, T x) {
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return x;
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}
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static std::unordered_map<JNIEnv*, std::vector<jobject>> localRefs;
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static void deleteLocalRefs(JNIEnv* env);
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static std::string getJNISignature() {
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return "";
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}
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static std::string getJNISignature(bool) {
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return "Z";
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}
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static std::string getJNISignature(char) {
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return "C";
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}
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static std::string getJNISignature(short) {
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return "S";
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}
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static std::string getJNISignature(int) {
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return "I";
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}
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static std::string getJNISignature(long) {
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return "J";
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}
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static std::string getJNISignature(float) {
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return "F";
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}
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static std::string getJNISignature(double) {
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return "D";
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}
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static std::string getJNISignature(const char*) {
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return "Ljava/lang/String;";
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}
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static std::string getJNISignature(const std::string&) {
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return "Ljava/lang/String;";
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}
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template <typename T>
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static std::string getJNISignature(T x) {
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// This template should never be instantiated
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static_assert(sizeof(x) == 0, "Unsupported argument type");
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return "";
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}
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template <typename T, typename... Ts>
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static std::string getJNISignature(T x, Ts... xs) {
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return getJNISignature(x) + getJNISignature(xs...);
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}
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static void reportError(const std::string& className, const std::string& methodName, const std::string& signature);
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};
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NS_CC_END
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#endif // __ANDROID_JNI_HELPER_H__
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