mirror of https://github.com/axmolengine/axmol.git
415 lines
15 KiB
C++
415 lines
15 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2013-2016 Chukong Technologies Inc.
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Copyright (c) 2017-2018 Xiamen Yaji Software Co., Ltd.
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Copyright (c) 2021 Bytedance Inc.
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https://axis-project.github.io
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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 <functional>
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#include <type_traits>
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#include "platform/CCPlatformMacros.h"
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#include "math/Vec3.h"
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#include "jni/jni.hpp"
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namespace jni
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{
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template <>
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struct TypeSignature<bool>
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{
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constexpr auto operator()() const { return TypeSignature<jboolean>{}(); }
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};
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template <>
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struct TypeSignature<const char*>
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{
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constexpr auto operator()() const { return TypeSignature<jni::String>{}(); }
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};
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template <>
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struct TypeSignature<std::string_view>
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{
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constexpr auto operator()() const { return TypeSignature<jni::String>{}(); }
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};
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template <>
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struct TypeSignature<std::string>
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{
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constexpr auto operator()() const { return TypeSignature<jni::String>{}(); }
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};
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} // namespace jni
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NS_AX_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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typedef std::unordered_map<JNIEnv*, std::vector<jobject>> LocalRefMapType;
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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 jobject getActivity();
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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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static std::function<void()> classloaderCallback;
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/**
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@brief Call of Java static void method
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@if no such method will log error
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*/
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template <typename... Ts>
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static void callStaticVoidMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<void(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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t.env->CallStaticVoidMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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}
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else
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{
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reportError(className, methodName, signature);
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}
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}
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/**
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@brief Call of Java static boolean method
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@return value from Java static boolean method if there are proper JniMethodInfo; otherwise false.
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*/
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template <typename... Ts>
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static bool callStaticBooleanMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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jboolean jret = JNI_FALSE;
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jboolean(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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jret = t.env->CallStaticBooleanMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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}
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else
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{
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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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/**
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@brief Call of Java static int method
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@return value from Java static int method if there are proper JniMethodInfo; otherwise 0.
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*/
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template <typename... Ts>
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static int callStaticIntMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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jint ret = 0;
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jint(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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ret = t.env->CallStaticIntMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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}
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else
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{
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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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/**
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@brief Call of Java static float method
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@return value from Java static float method if there are proper JniMethodInfo; otherwise 0.
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*/
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template <typename... Ts>
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static float callStaticFloatMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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jfloat ret = 0.0;
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jfloat(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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ret = t.env->CallStaticFloatMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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}
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else
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{
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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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/**
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@brief Call of Java static float* method
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@return address of JniMethodInfo if there are proper JniMethodInfo; otherwise nullptr.
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*/
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template <typename... Ts>
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static float* callStaticFloatArrayMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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static float ret[32];
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jni::Array<jfloat>(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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jfloatArray array =
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(jfloatArray)t.env->CallStaticObjectMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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jsize len = t.env->GetArrayLength(array);
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if (len <= 32)
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{
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jfloat* elems = t.env->GetFloatArrayElements(array, 0);
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if (elems)
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{
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memcpy(ret, elems, sizeof(float) * len);
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t.env->ReleaseFloatArrayElements(array, elems, 0);
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};
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}
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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return &ret[0];
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}
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else
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{
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reportError(className, methodName, signature);
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}
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return nullptr;
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}
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/**
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@brief Call of Java static int* method
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@return address of JniMethodInfo if there are proper JniMethodInfo; otherwise nullptr.
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*/
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template <typename... Ts>
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static int* callStaticIntArrayMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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static int ret[32];
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jni::Array<jint>(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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jintArray array =
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(jintArray)t.env->CallStaticObjectMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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jsize len = t.env->GetArrayLength(array);
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if (len <= 32)
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{
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jint* elems = t.env->GetIntArrayElements(array, 0);
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if (elems)
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{
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memcpy(ret, elems, sizeof(int) * len);
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t.env->ReleaseIntArrayElements(array, elems, 0);
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};
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}
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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return &ret[0];
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}
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else
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{
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reportError(className, methodName, signature);
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}
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return nullptr;
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}
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/**
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@brief Call of Java static Vec3 method
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@return JniMethodInfo of Vec3 type if there are proper JniMethodInfo; otherwise Vec3(0, 0, 0).
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*/
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template <typename... Ts>
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static Vec3 callStaticVec3Method(const char* className, const char* methodName, Ts&&... xs)
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{
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Vec3 ret;
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jni::Array<jfloat>(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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jfloatArray array =
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(jfloatArray)t.env->CallStaticObjectMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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jsize len = t.env->GetArrayLength(array);
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if (len == 3)
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{
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jfloat* elems = t.env->GetFloatArrayElements(array, 0);
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ret.x = elems[0];
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ret.y = elems[1];
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ret.z = elems[2];
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t.env->ReleaseFloatArrayElements(array, elems, 0);
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}
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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}
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else
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{
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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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/**
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@brief Call of Java static double method
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@return value from Java static double method if there are proper JniMethodInfo; otherwise 0.
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*/
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template <typename... Ts>
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static double callStaticDoubleMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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jdouble ret = 0.0;
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jdouble(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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ret = t.env->CallStaticDoubleMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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t.env->DeleteLocalRef(t.classID);
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deleteLocalRefs(t.env, localRefs);
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}
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else
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{
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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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/**
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@brief Call of Java static string method
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@return JniMethodInfo of string type if there are proper JniMethodInfo; otherwise empty string.
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*/
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template <typename... Ts>
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static std::string callStaticStringMethod(const char* className, const char* methodName, Ts&&... xs)
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{
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std::string ret;
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axis::JniMethodInfo t;
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const char* signature = jni::TypeSignature<jni::String(std::decay_t<Ts>...)>{}();
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if (axis::JniHelper::getStaticMethodInfo(t, className, methodName, signature))
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{
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LocalRefMapType localRefs;
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jstring jret = (jstring)t.env->CallStaticObjectMethod(t.classID, t.methodID, convert(localRefs, t, xs)...);
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ret = axis::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, localRefs);
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}
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else
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{
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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 jobject _activity;
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static jstring convert(LocalRefMapType& localRefs, axis::JniMethodInfo& t, const char* x);
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static jstring convert(LocalRefMapType& localRefs, axis::JniMethodInfo& t, std::string_view x);
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static jstring convert(LocalRefMapType& localRefs, axis::JniMethodInfo& t, const std::string& x);
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inline static jint convert(LocalRefMapType&, axis::JniMethodInfo&, int32_t value)
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{
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return static_cast<jint>(value);
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}
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inline static jlong convert(LocalRefMapType&, axis::JniMethodInfo&, int64_t value)
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{
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return static_cast<jlong>(value);
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}
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inline static jfloat convert(LocalRefMapType&, axis::JniMethodInfo&, float value)
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{
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return static_cast<jfloat>(value);
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}
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inline static jdouble convert(LocalRefMapType&, axis::JniMethodInfo&, double value)
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{
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return static_cast<jdouble>(value);
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}
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inline static jboolean convert(LocalRefMapType&, axis::JniMethodInfo&, bool value)
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{
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return static_cast<jboolean>(value);
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}
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inline static jbyte convert(LocalRefMapType&, axis::JniMethodInfo&, int8_t value)
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{
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return static_cast<jbyte>(value);
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}
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inline static jchar convert(LocalRefMapType&, axis::JniMethodInfo&, uint8_t value)
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{
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return static_cast<jchar>(value);
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}
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inline static jshort convert(LocalRefMapType&, axis::JniMethodInfo&, int16_t value)
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{
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return static_cast<jshort>(value);
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}
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template <typename T>
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static T convert(LocalRefMapType& localRefs, axis::JniMethodInfo&, T x)
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{
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return x;
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}
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static void deleteLocalRefs(JNIEnv* env, LocalRefMapType& localRefs);
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static void reportError(const char* className, const char* methodName, const char* signature);
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};
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NS_AX_END
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#endif // __ANDROID_JNI_HELPER_H__
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