minetest/src/porting_android.cpp
ShadowNinja ea2964f5a1 Add seperate cache path
This is set to the XDG cache path where possible.
It's set to the app's cache path on Android.
2015-12-07 13:51:41 -05:00

328 lines
8.8 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 "util/numeric.h"
#include "porting.h"
#include "porting_android.h"
#include "threading/thread.h"
#include "config.h"
#include "filesys.h"
#include "log.h"
#include <sstream>
#include <exception>
#include <stdlib.h>
#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;
Thread::setName("Main");
try {
app_dummy();
char *argv[] = {strdup(PROJECT_NAME), NULL};
main(ARRLEN(argv) - 1, argv);
free(argv[0]);
} catch (std::exception &e) {
errorstream << "Uncaught exception in main thread: " << e.what() << std::endl;
retval = -1;
} catch (...) {
errorstream << "Uncaught exception in main thread!" << std::endl;
retval = -1;
}
porting::cleanupAndroid();
infostream << "Shutting down." << 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_net_minetest_MtNativeActivity_putMessageBoxResult(
JNIEnv * env, jclass thiz, jstring text)
{
errorstream << "Java_net_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 = PROJECT_NAME_C "NativeThread";
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("net/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_C,
"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();
}
static std::string javaStringToUTF8(jstring js)
{
std::string str;
// Get string as a UTF-8 c-string
const char *c_str = jnienv->GetStringUTFChars(js, NULL);
// Save it
str = c_str;
// And free the c-string
jnienv->ReleaseStringUTFChars(js, c_str);
return str;
}
// Calls static method if obj is NULL
static std::string getAndroidPath(jclass cls, jobject obj, jclass cls_File,
jmethodID mt_getAbsPath, const char *getter)
{
// Get getter method
jmethodID mt_getter;
if (obj)
mt_getter = jnienv->GetMethodID(cls, getter,
"()Ljava/io/File;");
else
mt_getter = jnienv->GetStaticMethodID(cls, getter,
"()Ljava/io/File;");
// Call getter
jobject ob_file;
if (obj)
ob_file = jnienv->CallObjectMethod(obj, mt_getter);
else
ob_file = jnienv->CallStaticObjectMethod(cls, mt_getter);
// Call getAbsolutePath
jstring js_path = (jstring) jnienv->CallObjectMethod(ob_file,
mt_getAbsPath);
return javaStringToUTF8(js_path);
}
void initializePathsAndroid()
{
// Get Environment class
jclass cls_Env = jnienv->FindClass("android/os/Environment");
// Get File class
jclass cls_File = jnienv->FindClass("java/io/File");
// Get getAbsolutePath method
jmethodID mt_getAbsPath = jnienv->GetMethodID(cls_File,
"getAbsolutePath", "()Ljava/lang/String;");
path_cache = getAndroidPath(nativeActivity, app_global->activity->clazz,
cls_File, mt_getAbsPath, "getCacheDir");
path_storage = getAndroidPath(cls_Env, NULL, cls_File, mt_getAbsPath,
"getExternalStorageDirectory");
path_user = path_storage + DIR_DELIM + PROJECT_NAME_C;
path_share = path_storage + DIR_DELIM + PROJECT_NAME_C;
migrateCachePath();
}
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;
}
#ifndef 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 // ndef SERVER
}