godot/platform/ios/godot_ios.mm

/**************************************************************************/
/*  godot_ios.mm                                                          */
/**************************************************************************/
/*                         This file is part of:                          */
/*                             GODOT ENGINE                               */
/*                        https://godotengine.org                         */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
/*                                                                        */
/* Permission is hereby granted, free of charge, to any person obtaining  */
/* a copy of this software and associated documentation files (the        */
/* "Software"), to deal in the Software without restriction, including    */
/* without limitation the rights to use, copy, modify, merge, publish,    */
/* distribute, sublicense, and/or sell copies of the Software, and to     */
/* permit persons to whom the Software is furnished to do so, subject to  */
/* the following conditions:                                              */
/*                                                                        */
/* The above copyright notice and this permission notice shall be         */
/* included in all copies or substantial portions of the Software.        */
/*                                                                        */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */
/**************************************************************************/

#import "os_ios.h"

#include "core/string/ustring.h"
#include "main/main.h"

#include <unistd.h>
#include <cstdio>

static OS_IOS *os = nullptr;

int add_path(int p_argc, char **p_args) {
	NSString *str = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"godot_path"];
	if (!str) {
		return p_argc;
	}

	p_args[p_argc++] = (char *)"--path";
	p_args[p_argc++] = (char *)[str cStringUsingEncoding:NSUTF8StringEncoding];
	p_args[p_argc] = nullptr;

	return p_argc;
}

int add_cmdline(int p_argc, char **p_args) {
	NSArray *arr = [[[NSBundle mainBundle] infoDictionary] objectForKey:@"godot_cmdline"];
	if (!arr) {
		return p_argc;
	}

	for (NSUInteger i = 0; i < [arr count]; i++) {
		NSString *str = [arr objectAtIndex:i];
		if (!str) {
			continue;
		}
		p_args[p_argc++] = (char *)[str cStringUsingEncoding:NSUTF8StringEncoding];
	}

	p_args[p_argc] = nullptr;

	return p_argc;
}

int ios_main(int argc, char **argv) {
	size_t len = strlen(argv[0]);

	while (len--) {
		if (argv[0][len] == '/') {
			break;
		}
	}

	if (len >= 0) {
		char path[512];
		memcpy(path, argv[0], len > sizeof(path) ? sizeof(path) : len);
		path[len] = 0;
		chdir(path);
	}

	os = new OS_IOS();

	// We must override main when testing is enabled
	TEST_MAIN_OVERRIDE

	char *fargv[64];
	for (int i = 0; i < argc; i++) {
		fargv[i] = argv[i];
	}
	fargv[argc] = nullptr;
	argc = add_path(argc, fargv);
	argc = add_cmdline(argc, fargv);

	Error err = Main::setup(fargv[0], argc - 1, &fargv[1], false);

	if (err != OK) {
		if (err == ERR_HELP) { // Returned by --help and --version, so success.
			return EXIT_SUCCESS;
		}
		return EXIT_FAILURE;
	}

	os->initialize_modules();

	return os->get_exit_code();
}

void ios_finish() {
	Main::cleanup();
	delete os;
}