sram bugfix + savestate refactoring

[picodrive.git] / platform / common / main.c

// (c) Copyright 2006-2009 notaz, All rights reserved.\r
// Free for non-commercial use.\r
\r
// For commercial use, separate licencing terms must be obtained.\r
\r
#include <stdio.h>\r
#include <stdlib.h>\r
#include <string.h>\r
#include <strings.h>\r
\r
#include "menu.h"\r
#include "emu.h"\r
#include "config.h"\r
#include "input.h"\r
#include "plat.h"\r
#include <version.h>\r
\r
\r
extern char *PicoConfigFile;\r
static int load_state_slot = -1;\r
char **g_argv;\r
\r
void parse_cmd_line(int argc, char *argv[])\r
{\r
	int x, unrecognized = 0;\r
\r
	for (x = 1; x < argc; x++)\r
	{\r
		if (argv[x][0] == '-')\r
		{\r
			if (strcasecmp(argv[x], "-config") == 0) {\r
				if (x+1 < argc) { ++x; PicoConfigFile = argv[x]; }\r
			}\r
			else if (strcasecmp(argv[x], "-loadstate") == 0) {\r
				if (x+1 < argc) { ++x; load_state_slot = atoi(argv[x]); }\r
			}\r
			else {\r
				unrecognized = 1;\r
				break;\r
			}\r
		} else {\r
			/* External Frontend: ROM Name */\r
			FILE *f;\r
			strncpy(rom_fname_reload, argv[x], sizeof(rom_fname_reload));\r
			rom_fname_reload[sizeof(rom_fname_reload) - 1] = 0;\r
			f = fopen(rom_fname_reload, "rb");\r
			if (f) fclose(f);\r
			else unrecognized = 1;\r
			engineState = PGS_ReloadRom;\r
			break;\r
		}\r
	}\r
\r
	if (unrecognized) {\r
		printf("\n\n\nPicoDrive v" VERSION " (c) notaz, 2006-2009\n");\r
		printf("usage: %s [options] [romfile]\n", argv[0]);\r
		printf("options:\n"\r
			" -config <file>    use specified config file instead of default 'config.cfg'\n"\r
			" -loadstate <num>  if ROM is specified, try loading slot <num>\n");\r
	}\r
}\r
\r
\r
int main(int argc, char *argv[])\r
{\r
	g_argv = argv;\r
\r
	plat_early_init();\r
\r
	/* in_init() must go before config, config accesses in_ fwk */\r
	in_init();\r
	pemu_prep_defconfig();\r
	emu_read_config(0, 0);\r
	config_readlrom(PicoConfigFile);\r
\r
	plat_init();\r
	in_probe();\r
	in_debug_dump();\r
\r
	emu_init();\r
	menu_init();\r
\r
	engineState = PGS_Menu;\r
\r
	if (argc > 1)\r
		parse_cmd_line(argc, argv);\r
\r
	if (engineState == PGS_ReloadRom)\r
	{\r
		if (emu_reload_rom(rom_fname_reload)) {\r
			engineState = PGS_Running;\r
			if (load_state_slot >= 0) {\r
				state_slot = load_state_slot;\r
				emu_save_load_game(1, 0);\r
			}\r
		}\r
	}\r
\r
	for (;;)\r
	{\r
		switch (engineState)\r
		{\r
			case PGS_Menu:\r
				menu_loop();\r
				break;\r
\r
			case PGS_TrayMenu:\r
				menu_loop_tray();\r
				break;\r
\r
			case PGS_ReloadRom:\r
				if (emu_reload_rom(rom_fname_reload))\r
					engineState = PGS_Running;\r
				else {\r
					printf("PGS_ReloadRom == 0\n");\r
					engineState = PGS_Menu;\r
				}\r
				break;\r
\r
			case PGS_RestartRun:\r
				engineState = PGS_Running;\r
				/* vvv fallthrough */\r
\r
			case PGS_Running:\r
				emu_loop();\r
				break;\r
\r
			case PGS_Quit:\r
				goto endloop;\r
\r
			default:\r
				printf("engine got into unknown state (%i), exitting\n", engineState);\r
				goto endloop;\r
		}\r
	}\r
\r
	endloop:\r
\r
	emu_finish();\r
	plat_finish();\r
\r
	return 0;\r
}\r