dolphin/Source/Android/jni/AndroidCommon/AndroidCommon.cpp

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// Copyright 2018 Dolphin Emulator Project
// Licensed under GPLv2+
// Refer to the license.txt file included.
#include "jni/AndroidCommon/AndroidCommon.h"
#include <string>
#include <string_view>
#include <vector>
#include <jni.h>
#include "Common/StringUtil.h"
#include "jni/AndroidCommon/IDCache.h"
std::string GetJString(JNIEnv* env, jstring jstr)
{
const jchar* jchars = env->GetStringChars(jstr, nullptr);
const jsize length = env->GetStringLength(jstr);
const std::u16string_view string_view(reinterpret_cast<const char16_t*>(jchars), length);
const std::string converted_string = UTF16ToUTF8(string_view);
env->ReleaseStringChars(jstr, jchars);
return converted_string;
}
jstring ToJString(JNIEnv* env, const std::string& str)
{
const std::u16string converted_string = UTF8ToUTF16(str);
return env->NewString(reinterpret_cast<const jchar*>(converted_string.data()),
converted_string.size());
}
std::vector<std::string> JStringArrayToVector(JNIEnv* env, jobjectArray array)
{
const jsize size = env->GetArrayLength(array);
std::vector<std::string> result;
result.reserve(size);
for (jsize i = 0; i < size; ++i)
result.push_back(GetJString(env, (jstring)env->GetObjectArrayElement(array, i)));
return result;
}
int OpenAndroidContent(const std::string& uri, const std::string& mode)
{
JNIEnv* env = IDCache::GetEnvForThread();
const jint fd = env->CallStaticIntMethod(IDCache::GetContentHandlerClass(),
IDCache::GetContentHandlerOpenFd(), ToJString(env, uri),
ToJString(env, mode));
// We can get an IllegalArgumentException when passing an invalid mode
if (env->ExceptionCheck())
{
env->ExceptionDescribe();
abort();
}
return fd;
}