source-engine/launcher/android/main.cpp

/*
Copyright (C) 2022 nillerusr

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 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 General Public License for more details.
*/

#include <stdio.h>
#include <string.h>
#include <dlfcn.h>
#include <jni.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <SDL_hints.h>
#include <SDL_version.h>
#include "tier0/dbg.h"
#include "tier0/threadtools.h"

char *LauncherArgv[512];
char java_args[4096];
int iLastArgs = 0;

DLL_EXPORT int LauncherMain( int argc, char **argv ); // from launcher.cpp
extern void InitCrashHandler();

JNIEXPORT int Java_com_valvesoftware_ValveActivity2_setenv(JNIEnv *jenv, jclass *jclass, jstring env, jstring value, jint over)
{
	Msg( "Java_com_valvesoftware_ValveActivity2_setenv %s=%s", jenv->GetStringUTFChars(env, NULL), jenv->GetStringUTFChars(value, NULL) );
	return setenv( jenv->GetStringUTFChars(env, NULL), jenv->GetStringUTFChars(value, NULL), over );
}

JNIEXPORT void Java_com_valvesoftware_ValveActivity2_nativeOnActivityResult()
{
	Msg( "Java_com_valvesoftware_ValveActivity_nativeOnActivityResult" );
}

JNIEXPORT void Java_com_valvesoftware_ValveActivity2_setArgs(JNIEnv *env, jclass *clazz, jstring str)
{
	strncpy( java_args, env->GetStringUTFChars(str, NULL), sizeof java_args );
}

void SetLauncherArgs()
{
#define A(a,b) LauncherArgv[iLastArgs++] = (char*)a; \
	LauncherArgv[iLastArgs++] = (char*)b
#define D(a) LauncherArgv[iLastArgs++] = (char*)a

	static char binPath[2048];
	snprintf(binPath, sizeof binPath, "%s/hl2_linux", getenv("APP_DATA_PATH") );
	Msg(binPath);
	D(binPath);

	D("-nouserclip");

	char *pch;

	pch = strtok (java_args," ");
	while (pch != NULL)
	{
		LauncherArgv[iLastArgs++] = pch;
		pch = strtok (NULL, " ");
	}

	D("-fullscreen");
	D("-nosteam");
	D("-insecure");

#undef A
#undef D
}

JNIEXPORT int LauncherMainAndroid( int argc, char **argv )
{
	SDL_version ver;
	SDL_GetVersion( &ver );

	Msg("SDL version: %d.%d.%d rev: %s\n", (int)ver.major, (int)ver.minor, (int)ver.patch, SDL_GetRevision());

	InitCrashHandler();
	SetLauncherArgs();

	SDL_SetHint(SDL_HINT_TOUCH_MOUSE_EVENTS, "0");
	DeclareCurrentThreadIsMainThread(); // Init thread propertly on Android

	return LauncherMain(iLastArgs, LauncherArgv);
}