minetest/src/porting_android.cpp
sapier 1cc40c0a7c Add support for Android 2.3+
There have been plenty of ppl involved in creating this version.
I don't wanna mention names as I'm sure I'd forget someone so I
just tell where help has been done:
- The partial android versions done by various ppl
- Testing on different android devices
- reviewing code (especially the in core changes)
- testing controls
- reviewing texts

A big thank you to everyone helping this to be completed!
2014-06-29 18:17:56 +02:00

296 lines
8.3 KiB
C++

/*
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 "porting.h"
#include "porting_android.h"
#include "config.h"
#include "filesys.h"
#include "log.h"
#include <sstream>
#ifdef GPROF
#include "prof.h"
#endif
extern int main(int argc, char *argv[]);
void android_main(android_app *app)
{
int retval = 0;
porting::app_global = app;
porting::setThreadName("MainThread");
try {
app_dummy();
char *argv[] = { (char*) "minetest" };
main(sizeof(argv) / sizeof(argv[0]), argv);
}
catch(BaseException e) {
std::stringstream msg;
msg << "Exception handled by main: " << e.what();
const char* message = msg.str().c_str();
__android_log_print(ANDROID_LOG_ERROR, PROJECT_NAME, "%s", message);
errorstream << msg << std::endl;
retval = -1;
}
catch(...) {
__android_log_print(ANDROID_LOG_ERROR, PROJECT_NAME,
"Some exception occured");
errorstream << "Uncaught exception in main thread!" << std::endl;
retval = -1;
}
porting::cleanupAndroid();
errorstream << "Shutting down minetest." << std::endl;
exit(retval);
}
/* handler for finished message box input */
/* Intentionally NOT in namespace porting */
/* TODO this doesn't work as expected, no idea why but there's a workaround */
/* for it right now */
extern "C" {
JNIEXPORT void JNICALL Java_org_minetest_MtNativeActivity_putMessageBoxResult(
JNIEnv * env, jclass thiz, jstring text)
{
errorstream << "Java_org_minetest_MtNativeActivity_putMessageBoxResult got: "
<< std::string((const char*)env->GetStringChars(text,0))
<< std::endl;
}
}
namespace porting {
std::string path_storage = DIR_DELIM "sdcard" DIR_DELIM;
android_app* app_global;
JNIEnv* jnienv;
jclass nativeActivity;
jclass findClass(std::string classname)
{
if (jnienv == 0) {
return 0;
}
jclass nativeactivity = jnienv->FindClass("android/app/NativeActivity");
jmethodID getClassLoader =
jnienv->GetMethodID(nativeactivity,"getClassLoader",
"()Ljava/lang/ClassLoader;");
jobject cls =
jnienv->CallObjectMethod(app_global->activity->clazz, getClassLoader);
jclass classLoader = jnienv->FindClass("java/lang/ClassLoader");
jmethodID findClass =
jnienv->GetMethodID(classLoader, "loadClass",
"(Ljava/lang/String;)Ljava/lang/Class;");
jstring strClassName =
jnienv->NewStringUTF(classname.c_str());
return (jclass) jnienv->CallObjectMethod(cls, findClass, strClassName);
}
void copyAssets()
{
jmethodID assetcopy = jnienv->GetMethodID(nativeActivity,"copyAssets","()V");
if (assetcopy == 0) {
assert("porting::copyAssets unable to find copy assets method" == 0);
}
jnienv->CallVoidMethod(app_global->activity->clazz, assetcopy);
}
void initAndroid()
{
porting::jnienv = NULL;
JavaVM *jvm = app_global->activity->vm;
JavaVMAttachArgs lJavaVMAttachArgs;
lJavaVMAttachArgs.version = JNI_VERSION_1_6;
lJavaVMAttachArgs.name = "MinetestNativeThread";
lJavaVMAttachArgs.group = NULL;
#ifdef NDEBUG
// This is a ugly hack as arm v7a non debuggable builds crash without this
// printf ... if someone finds out why please fix it!
infostream << "Attaching native thread. " << std::endl;
#endif
if ( jvm->AttachCurrentThread(&porting::jnienv, &lJavaVMAttachArgs) == JNI_ERR) {
errorstream << "Failed to attach native thread to jvm" << std::endl;
exit(-1);
}
nativeActivity = findClass("org/minetest/minetest/MtNativeActivity");
if (nativeActivity == 0) {
errorstream <<
"porting::initAndroid unable to find java native activity class" <<
std::endl;
}
#ifdef GPROF
/* in the start-up code */
__android_log_print(ANDROID_LOG_ERROR, PROJECT_NAME,
"Initializing GPROF profiler");
monstartup("libminetest.so");
#endif
}
void cleanupAndroid()
{
#ifdef GPROF
errorstream << "Shutting down GPROF profiler" << std::endl;
setenv("CPUPROFILE", (path_user + DIR_DELIM + "gmon.out").c_str(), 1);
moncleanup();
#endif
JavaVM *jvm = app_global->activity->vm;
jvm->DetachCurrentThread();
}
void setExternalStorageDir(JNIEnv* lJNIEnv)
{
// Android: Retrieve ablsolute path to external storage device (sdcard)
jclass ClassEnv = lJNIEnv->FindClass("android/os/Environment");
jmethodID MethodDir =
lJNIEnv->GetStaticMethodID(ClassEnv,
"getExternalStorageDirectory","()Ljava/io/File;");
jobject ObjectFile = lJNIEnv->CallStaticObjectMethod(ClassEnv, MethodDir);
jclass ClassFile = lJNIEnv->FindClass("java/io/File");
jmethodID MethodPath =
lJNIEnv->GetMethodID(ClassFile, "getAbsolutePath",
"()Ljava/lang/String;");
jstring StringPath =
(jstring) lJNIEnv->CallObjectMethod(ObjectFile, MethodPath);
const char *externalPath = lJNIEnv->GetStringUTFChars(StringPath, NULL);
std::string userPath(externalPath);
lJNIEnv->ReleaseStringUTFChars(StringPath, externalPath);
path_storage = userPath;
path_user = userPath + DIR_DELIM + PROJECT_NAME;
path_share = userPath + DIR_DELIM + PROJECT_NAME;
}
void showInputDialog(const std::string& acceptButton, const std::string& hint,
const std::string& current, int editType)
{
jmethodID showdialog = jnienv->GetMethodID(nativeActivity,"showDialog",
"(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;I)V");
if (showdialog == 0) {
assert("porting::showInputDialog unable to find java show dialog method" == 0);
}
jstring jacceptButton = jnienv->NewStringUTF(acceptButton.c_str());
jstring jhint = jnienv->NewStringUTF(hint.c_str());
jstring jcurrent = jnienv->NewStringUTF(current.c_str());
jint jeditType = editType;
jnienv->CallVoidMethod(app_global->activity->clazz, showdialog,
jacceptButton, jhint, jcurrent, jeditType);
}
int getInputDialogState()
{
jmethodID dialogstate = jnienv->GetMethodID(nativeActivity,
"getDialogState", "()I");
if (dialogstate == 0) {
assert("porting::getInputDialogState unable to find java dialog state method" == 0);
}
return jnienv->CallIntMethod(app_global->activity->clazz, dialogstate);
}
std::string getInputDialogValue()
{
jmethodID dialogvalue = jnienv->GetMethodID(nativeActivity,
"getDialogValue", "()Ljava/lang/String;");
if (dialogvalue == 0) {
assert("porting::getInputDialogValue unable to find java dialog value method" == 0);
}
jobject result = jnienv->CallObjectMethod(app_global->activity->clazz,
dialogvalue);
const char* javachars = jnienv->GetStringUTFChars((jstring) result,0);
std::string text(javachars);
jnienv->ReleaseStringUTFChars((jstring) result, javachars);
return text;
}
#if not defined(SERVER)
float getDisplayDensity()
{
static bool firstrun = true;
static float value = 0;
if (firstrun) {
jmethodID getDensity = jnienv->GetMethodID(nativeActivity, "getDensity",
"()F");
if (getDensity == 0) {
assert("porting::getDisplayDensity unable to find java getDensity method" == 0);
}
value = jnienv->CallFloatMethod(app_global->activity->clazz, getDensity);
firstrun = false;
}
return value;
}
v2u32 getDisplaySize()
{
static bool firstrun = true;
static v2u32 retval;
if (firstrun) {
jmethodID getDisplayWidth = jnienv->GetMethodID(nativeActivity,
"getDisplayWidth", "()I");
if (getDisplayWidth == 0) {
assert("porting::getDisplayWidth unable to find java getDisplayWidth method" == 0);
}
retval.X = jnienv->CallIntMethod(app_global->activity->clazz,
getDisplayWidth);
jmethodID getDisplayHeight = jnienv->GetMethodID(nativeActivity,
"getDisplayHeight", "()I");
if (getDisplayHeight == 0) {
assert("porting::getDisplayHeight unable to find java getDisplayHeight method" == 0);
}
retval.Y = jnienv->CallIntMethod(app_global->activity->clazz,
getDisplayHeight);
firstrun = false;
}
return retval;
}
#endif //SERVER
}