minetest/src/porting_android.cpp

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/*
Minetest
Copyright (C) 2014 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __ANDROID__
#error This file may only be compiled for android!
#endif
#include "util/numeric.h"
#include "porting.h"
#include "porting_android.h"
#include "threading/thread.h"
#include "config.h"
#include "filesys.h"
#include "log.h"
#include "settings.h"
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#include <jni.h>
#define SDL_MAIN_HANDLED 1
#include <SDL.h>
#include <sstream>
#include <exception>
#include <cstdlib>
#ifdef GPROF
#include "prof.h"
#endif
extern int main(int argc, char *argv[]);
extern "C" JNIEXPORT void JNICALL
Java_net_minetest_minetest_GameActivity_saveSettings(JNIEnv* env, jobject /* this */) {
if (!g_settings_path.empty())
g_settings->updateConfigFile(g_settings_path.c_str());
}
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namespace porting {
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// used here:
void cleanupAndroid();
std::string getLanguageAndroid();
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bool setSystemPaths(); // used in porting.cpp
}
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extern "C" int SDL_Main(int _argc, char *_argv[])
{
Thread::setName("Main");
char *argv[] = {strdup(PROJECT_NAME), strdup("--verbose"), nullptr};
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int retval = main(ARRLEN(argv) - 1, argv);
free(argv[0]);
free(argv[1]);
porting::cleanupAndroid();
infostream << "Shutting down." << std::endl;
exit(retval);
}
namespace porting {
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JNIEnv *jnienv = nullptr;
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jobject activity;
jclass activityClass;
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void osSpecificInit()
{
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jnienv = (JNIEnv*)SDL_AndroidGetJNIEnv();
activity = (jobject)SDL_AndroidGetActivity();
activityClass = jnienv->GetObjectClass(activity);
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// Set default language
auto lang = getLanguageAndroid();
unsetenv("LANGUAGE");
setenv("LANG", lang.c_str(), 1);
#ifdef GPROF
// in the start-up code
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warningstream << "Initializing GPROF profiler" << std::endl;
monstartup("libMinetest.so");
#endif
}
void cleanupAndroid()
{
#ifdef GPROF
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warningstream << "Shutting down GPROF profiler" << std::endl;
setenv("CPUPROFILE", (path_user + DIR_DELIM + "gmon.out").c_str(), 1);
moncleanup();
#endif
}
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static std::string readJavaString(jstring j_str)
{
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// Get string as a UTF-8 C string
const char *c_str = jnienv->GetStringUTFChars(j_str, nullptr);
// Save it
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std::string str(c_str);
// And free the C string
jnienv->ReleaseStringUTFChars(j_str, c_str);
return str;
}
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bool setSystemPaths()
{
// Set user and share paths
{
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jmethodID getUserDataPath = jnienv->GetMethodID(activityClass,
"getUserDataPath", "()Ljava/lang/String;");
FATAL_ERROR_IF(getUserDataPath==nullptr,
"porting::initializePathsAndroid unable to find Java getUserDataPath method");
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jobject result = jnienv->CallObjectMethod(activity, getUserDataPath);
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std::string str = readJavaString((jstring) result);
path_user = str;
path_share = str;
}
// Set cache path
{
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jmethodID getCachePath = jnienv->GetMethodID(activityClass,
"getCachePath", "()Ljava/lang/String;");
FATAL_ERROR_IF(getCachePath==nullptr,
"porting::initializePathsAndroid unable to find Java getCachePath method");
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jobject result = jnienv->CallObjectMethod(activity, getCachePath);
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path_cache = readJavaString((jstring) result);
}
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return true;
}
void showTextInputDialog(const std::string &hint, const std::string &current, int editType)
{
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jmethodID showdialog = jnienv->GetMethodID(activityClass, "showTextInputDialog",
"(Ljava/lang/String;Ljava/lang/String;I)V");
FATAL_ERROR_IF(showdialog == nullptr,
"porting::showTextInputDialog unable to find Java showTextInputDialog method");
jstring jhint = jnienv->NewStringUTF(hint.c_str());
jstring jcurrent = jnienv->NewStringUTF(current.c_str());
jint jeditType = editType;
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jnienv->CallVoidMethod(activity, showdialog,
jhint, jcurrent, jeditType);
}
void showComboBoxDialog(const std::string optionList[], s32 listSize, s32 selectedIdx)
{
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jmethodID showdialog = jnienv->GetMethodID(activityClass, "showSelectionInputDialog",
"([Ljava/lang/String;I)V");
FATAL_ERROR_IF(showdialog == nullptr,
"porting::showComboBoxDialog unable to find Java showSelectionInputDialog method");
jclass jStringClass = jnienv->FindClass("java/lang/String");
jobjectArray jOptionList = jnienv->NewObjectArray(listSize, jStringClass, NULL);
jint jselectedIdx = selectedIdx;
for (s32 i = 0; i < listSize; i ++) {
jnienv->SetObjectArrayElement(jOptionList, i,
jnienv->NewStringUTF(optionList[i].c_str()));
}
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jnienv->CallVoidMethod(activity, showdialog, jOptionList,
jselectedIdx);
}
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void openURIAndroid(const char *url)
{
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jmethodID url_open = jnienv->GetMethodID(activityClass, "openURI",
"(Ljava/lang/String;)V");
FATAL_ERROR_IF(url_open == nullptr,
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"porting::openURIAndroid unable to find Java openURI method");
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jstring jurl = jnienv->NewStringUTF(url);
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jnienv->CallVoidMethod(activity, url_open, jurl);
}
void shareFileAndroid(const std::string &path)
{
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jmethodID url_open = jnienv->GetMethodID(activityClass, "shareFile",
"(Ljava/lang/String;)V");
FATAL_ERROR_IF(url_open == nullptr,
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"porting::shareFileAndroid unable to find Java shareFile method");
jstring jurl = jnienv->NewStringUTF(path.c_str());
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jnienv->CallVoidMethod(activity, url_open, jurl);
}
AndroidDialogType getLastInputDialogType()
{
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jmethodID lastdialogtype = jnienv->GetMethodID(activityClass,
"getLastDialogType", "()I");
FATAL_ERROR_IF(lastdialogtype == nullptr,
"porting::getLastInputDialogType unable to find Java getLastDialogType method");
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int dialogType = jnienv->CallIntMethod(activity, lastdialogtype);
return static_cast<AndroidDialogType>(dialogType);
}
AndroidDialogState getInputDialogState()
{
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jmethodID inputdialogstate = jnienv->GetMethodID(activityClass,
"getInputDialogState", "()I");
FATAL_ERROR_IF(inputdialogstate == nullptr,
"porting::getInputDialogState unable to find Java getInputDialogState method");
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int dialogState = jnienv->CallIntMethod(activity, inputdialogstate);
return static_cast<AndroidDialogState>(dialogState);
}
std::string getInputDialogMessage()
{
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jmethodID dialogvalue = jnienv->GetMethodID(activityClass,
"getDialogMessage", "()Ljava/lang/String;");
FATAL_ERROR_IF(dialogvalue == nullptr,
"porting::getInputDialogMessage unable to find Java getDialogMessage method");
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jobject result = jnienv->CallObjectMethod(activity,
dialogvalue);
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return readJavaString((jstring) result);
}
int getInputDialogSelection()
{
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jmethodID dialogvalue = jnienv->GetMethodID(activityClass, "getDialogSelection", "()I");
FATAL_ERROR_IF(dialogvalue == nullptr,
"porting::getInputDialogSelection unable to find Java getDialogSelection method");
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return jnienv->CallIntMethod(activity, dialogvalue);
}
#ifndef SERVER
float getDisplayDensity()
{
static bool firstrun = true;
static float value = 0;
if (firstrun) {
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jmethodID getDensity = jnienv->GetMethodID(activityClass,
"getDensity", "()F");
FATAL_ERROR_IF(getDensity == nullptr,
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"porting::getDisplayDensity unable to find Java getDensity method");
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value = jnienv->CallFloatMethod(activity, getDensity);
firstrun = false;
}
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return value;
}
v2u32 getDisplaySize()
{
static bool firstrun = true;
static v2u32 retval;
if (firstrun) {
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jmethodID getDisplayWidth = jnienv->GetMethodID(activityClass,
"getDisplayWidth", "()I");
FATAL_ERROR_IF(getDisplayWidth == nullptr,
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"porting::getDisplayWidth unable to find Java getDisplayWidth method");
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retval.X = jnienv->CallIntMethod(activity,
getDisplayWidth);
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jmethodID getDisplayHeight = jnienv->GetMethodID(activityClass,
"getDisplayHeight", "()I");
FATAL_ERROR_IF(getDisplayHeight == nullptr,
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"porting::getDisplayHeight unable to find Java getDisplayHeight method");
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retval.Y = jnienv->CallIntMethod(activity,
getDisplayHeight);
firstrun = false;
}
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return retval;
}
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std::string getLanguageAndroid()
{
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jmethodID getLanguage = jnienv->GetMethodID(activityClass,
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"getLanguage", "()Ljava/lang/String;");
FATAL_ERROR_IF(getLanguage == nullptr,
"porting::getLanguageAndroid unable to find Java getLanguage method");
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jobject result = jnienv->CallObjectMethod(activity,
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getLanguage);
return readJavaString((jstring) result);
}
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bool hasPhysicalKeyboardAndroid()
{
jmethodID hasPhysicalKeyboard = jnienv->GetMethodID(activityClass,
"hasPhysicalKeyboard", "()Z");
FATAL_ERROR_IF(hasPhysicalKeyboard == nullptr,
"porting::hasPhysicalKeyboardAndroid unable to find Java hasPhysicalKeyboard method");
jboolean result = jnienv->CallBooleanMethod(activity,
hasPhysicalKeyboard);
return result;
}
#endif // ndef SERVER
}