int RomLoad(const char *RomName)
{
FILE *file=NULL;
const char *name=NULL;
int nameLen=0;
int fileLen=0,space=0;
name = RomName;
file=fopen(name,"rb"); if (file==NULL) return 1;
nameLen=strlen(name);
{
// Find out the length of the file:
fseek(file,0,SEEK_END); fileLen=ftell(file);
fseek(file,0,SEEK_SET);
}
// Allocate space for it:
space=(fileLen+0x3fff)&~0x3fff;
RomData=(unsigned char *)malloc(space);
if (RomData==NULL) { fclose(file); return 1; }
memset(RomData,0,space);
// Read in file:
fread(RomData,1,fileLen,file);
fclose(file);
RomLen=fileLen;
// Check for SMD:
if ((fileLen&0x3fff)==0x200)
{
// Decode and byteswap:
DecodeSmd(RomData,RomLen);
RomLen-=0x200;
}
else
{
// Just byteswap:
_Byteswap(RomData,RomLen);
}
PicoCartInsert(RomData,RomLen);
return 0;
}
int emu_ReloadRom(void)
{
unsigned int rom_size = 0;
char *used_rom_name = romFileName;
char ext[5];
pm_file *rom;
int ret, cd_state, cd_region, cfg_loaded = 0;
lprintf("emu_ReloadRom(%s)\n", romFileName);
get_ext(romFileName, ext);
// detect wrong extensions
if(!strcmp(ext, ".srm") || !strcmp(ext, "s.gz") || !strcmp(ext, ".mds")) { // s.gz ~ .mds.gz
sprintf(menuErrorMsg, "Not a ROM selected.");
return 0;
}
PicoPatchUnload();
// check for movie file
if(movie_data) {
free(movie_data);
movie_data = 0;
}
#if 0
if(!strcmp(ext, ".gmv")) {
// check for both gmv and rom
int dummy;
FILE *movie_file = fopen(romFileName, "rb");
if(!movie_file) {
sprintf(menuErrorMsg, "Failed to open movie.");
return 0;
}
fseek(movie_file, 0, SEEK_END);
movie_size = ftell(movie_file);
fseek(movie_file, 0, SEEK_SET);
if(movie_size < 64+3) {
sprintf(menuErrorMsg, "Invalid GMV file.");
fclose(movie_file);
return 0;
}
movie_data = malloc(movie_size);
if(movie_data == NULL) {
sprintf(menuErrorMsg, "low memory.");
fclose(movie_file);
return 0;
}
fread(movie_data, 1, movie_size, movie_file);
fclose(movie_file);
if (strncmp((char *)movie_data, "Gens Movie TEST", 15) != 0) {
sprintf(menuErrorMsg, "Invalid GMV file.");
return 0;
}
dummy = try_rfn_cut() || try_rfn_cut();
if (!dummy) {
sprintf(menuErrorMsg, "Could't find a ROM for movie.");
return 0;
}
get_ext(romFileName, ext);
} else
if (!strcmp(ext, ".pat")) {
int dummy;
PicoPatchLoad(romFileName);
dummy = try_rfn_cut() || try_rfn_cut();
if (!dummy) {
sprintf(menuErrorMsg, "Could't find a ROM to patch.");
return 0;
}
get_ext(romFileName, ext);
}
#else
// load GG patches list
char ggFname[512];
romfname_ext(ggFname, NULL, ".cht");
PicoPatchLoad(ggFname);
#endif
if ((PicoMCD & 1) && Pico_mcd != NULL) Stop_CD();
// check for MegaCD image
cd_state = emu_cdCheck(&cd_region);
if (cd_state > 0)
{
// valid CD image, check for BIOS..
#if 0
// we need to have config loaded at this point
ret = emu_ReadConfig(READ_CONFIG_FOR_GAME, READ_CONFIG_SKIP_DEF);
if (!ret) emu_ReadConfig(READ_CONFIG_GLOBAL, READ_CONFIG_SKIP_DEF);
#endif
cfg_loaded = 1;
if (PicoRegionOverride) {
cd_region = PicoRegionOverride;
lprintf("overrided region to %s\n", cd_region != 4 ? (cd_region == 8 ? "EU" : "JAP") : "USA");
}
if (!emu_findBios(cd_region, &used_rom_name)) {
// bios_help() ?
return 0;
}
PicoMCD |= 1;
get_ext(used_rom_name, ext);
} else
{
if (PicoMCD & 1) Stop_CD();
PicoMCD &= ~1;
}
ips_define(ipsFileName);
rom = pm_open(used_rom_name);
if(!rom) {
sprintf(menuErrorMsg, "Failed to open rom.");
return 0;
}
menu_romload_prepare(used_rom_name); // also CD load
if(rom_data) {
free(rom_data);
rom_data = 0;
rom_size = 0;
}
if( (ret = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
sprintf(menuErrorMsg, "PicoCartLoad() failed.");
lprintf("%s\n", menuErrorMsg);
pm_close(rom);
menu_romload_end();
return 0;
}
pm_close(rom);
// detect wrong files (Pico crashes on very small files), also see if ROM EP is good
if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
((*(unsigned char *)(rom_data+4)<<16)|(*(unsigned short *)(rom_data+6))) >= (int)rom_size) {
if (rom_data) free(rom_data);
rom_data = 0;
sprintf(menuErrorMsg, "Not a ROM selected.");
menu_romload_end();
return 0;
}
#if 0
// load config for this ROM (do this before insert to get correct region)
if (!cfg_loaded) {
ret = emu_ReadConfig(READ_CONFIG_FOR_GAME, READ_CONFIG_SKIP_DEF);
if (!ret) emu_ReadConfig(READ_CONFIG_GLOBAL, READ_CONFIG_SKIP_DEF);
}
#endif
lprintf("PicoCartInsert(%p, %d);\n", rom_data, rom_size);
if(PicoCartInsert(rom_data, rom_size)) {
sprintf(menuErrorMsg, "Failed to load ROM.");
menu_romload_end();
return 0;
}
Pico.m.frame_count = 0;
// insert CD if it was detected
if (cd_state > 0) {
ret = Insert_CD(romFileName, cd_state == 2);
if (ret != 0) {
sprintf(menuErrorMsg, "Insert_CD() failed, invalid CD image?");
lprintf("%s\n", menuErrorMsg);
menu_romload_end();
return 0;
}
}
menu_romload_end();
#if 0
if (!emu_isBios(romFileName))
{
// emu_ReadConfig() might have messed currentConfig.lastRomFile
strncpy(currentConfig.lastRomFile, romFileName, sizeof(currentConfig.lastRomFile)-1);
currentConfig.lastRomFile[sizeof(currentConfig.lastRomFile)-1] = 0;
}
#endif
if (PicoPatches) {
PicoPatchPrepare();
PicoPatchApply();
}
// additional movie stuff
if (movie_data) {
if(movie_data[0x14] == '6')
PicoOpt |= PicoOpt_6button_gamepad; // 6 button pad
else PicoOpt &= ~PicoOpt_6button_gamepad;
PicoOpt |= (PicoOpt_accurate_timing | PicoOpt_disable_vdp_fifo); // accurate timing, no VDP fifo timing
if(movie_data[0xF] >= 'A') {
if(movie_data[0x16] & 0x80) {
PicoRegionOverride = 8;
} else {
PicoRegionOverride = 4;
}
PicoReset(0);
// TODO: bits 6 & 5
}
movie_data[0x18+30] = 0;
sprintf(noticeMsg, "MOVIE: %s", (char *) &movie_data[0x18]);
}
else
{
PicoOpt &= ~PicoOpt_disable_vdp_fifo;
if(Pico.m.pal) {
strcpy(noticeMsg, "PAL SYSTEM / 50 FPS");
} else {
strcpy(noticeMsg, "NTSC SYSTEM / 60 FPS");
}
}
emu_noticeMsgUpdated();
// load SRAM for this ROM
emu_SaveLoadSRAM(1);
return 1;
}
enum media_type_e PicoLoadMedia(const char *filename,
const char *carthw_cfg_fname,
const char *(*get_bios_filename)(int *region, const char *cd_fname),
void (*do_region_override)(const char *media_filename))
{
const char *rom_fname = filename;
enum media_type_e media_type;
enum cd_img_type cd_img_type = CIT_NOT_CD;
unsigned char *rom_data = NULL;
unsigned int rom_size = 0;
pm_file *rom = NULL;
int cd_region = 0;
int ret;
media_type = detect_media(filename);
if (media_type == PM_BAD_DETECT)
goto out;
if ((PicoAHW & PAHW_MCD) && Pico_mcd != NULL)
cdd_unload();
PicoCartUnload();
PicoAHW = 0;
PicoQuirks = 0;
if (media_type == PM_CD)
{
// check for MegaCD image
cd_img_type = PicoCdCheck(filename, &cd_region);
if ((int)cd_img_type >= 0 && cd_img_type != CIT_NOT_CD)
{
// valid CD image, ask frontend for BIOS..
rom_fname = NULL;
if (get_bios_filename != NULL)
rom_fname = get_bios_filename(&cd_region, filename);
if (rom_fname == NULL) {
media_type = PM_BAD_CD_NO_BIOS;
goto out;
}
PicoAHW |= PAHW_MCD;
}
else {
media_type = PM_BAD_CD;
goto out;
}
}
else if (media_type == PM_MARK3) {
lprintf("detected SMS ROM\n");
PicoAHW = PAHW_SMS;
}
rom = pm_open(rom_fname);
if (rom == NULL) {
lprintf("Failed to open ROM\n");
media_type = PM_ERROR;
goto out;
}
ret = PicoCartLoad(rom, &rom_data, &rom_size, (PicoAHW & PAHW_SMS) ? 1 : 0);
pm_close(rom);
if (ret != 0) {
if (ret == 2) lprintf("Out of memory\n");
else if (ret == 3) lprintf("Read failed\n");
else lprintf("PicoCartLoad() failed.\n");
media_type = PM_ERROR;
goto out;
}
// detect wrong files
if (strncmp((char *)rom_data, "Pico", 4) == 0) {
lprintf("savestate selected?\n");
media_type = PM_BAD_DETECT;
goto out;
}
if (!(PicoAHW & PAHW_SMS)) {
unsigned short *d = (unsigned short *)(rom_data + 4);
if ((((d[0] << 16) | d[1]) & 0xffffff) >= (int)rom_size) {
lprintf("bad reset vector\n");
media_type = PM_BAD_DETECT;
goto out;
}
}
// load config for this ROM (do this before insert to get correct region)
if (!(PicoAHW & PAHW_MCD)) {
memcpy(media_id_header, rom_data + 0x100, sizeof(media_id_header));
if (do_region_override != NULL)
do_region_override(filename);
}
if (PicoCartInsert(rom_data, rom_size, carthw_cfg_fname)) {
media_type = PM_ERROR;
goto out;
}
rom_data = NULL; // now belongs to PicoCart
Pico.m.ncart_in = 0;
// insert CD if it was detected
if (cd_img_type != CIT_NOT_CD) {
ret = cdd_load(filename, cd_img_type);
if (ret != 0) {
PicoCartUnload();
media_type = PM_BAD_CD;
goto out;
}
Pico.m.ncart_in = 1;
}
if (PicoQuirks & PQUIRK_FORCE_6BTN)
PicoSetInputDevice(0, PICO_INPUT_PAD_6BTN);
out:
if (rom_data)
free(rom_data);
return media_type;
}
void CPicoServSession::loadROM()
{
TInt res;
const TAny* pD=Message().Ptr0();
// TInt desLen=Message().Client().GetDesLength(pD);
if(rom_data) {
// save SRAM for previous ROM
if(currentConfig.iFlags & 1)
saveLoadGame(0, 1);
}
RomFileName = 0;
if(rom_data) {
free(rom_data);
rom_data = 0;
}
// read the contents of the client pointer into a TPtr.
static TBuf8<KMaxFileName> writeBuf;
TRAP(res,Message().ReadL(pD,writeBuf));
if (res!=KErrNone) {
PanicClient(EBadDescriptor);
return;
}
// detect wrong extensions (.srm and .mds)
TBuf8<5> ext;
ext.Copy(writeBuf.Right(4));
ext.LowerCase();
if(!strcmp((char *)ext.PtrZ(), ".srm") || !strcmp((char *)ext.PtrZ(), "s.gz") || // .mds.gz
!strcmp((char *)ext.PtrZ(), ".mds")) {
User::Leave(3);
return;
}
FILE *rom = fopen((char *) writeBuf.PtrZ(), "rb");
if(!rom) {
DEBUGPRINT(_L("failed to open rom."));
User::Leave(1);
return;
}
unsigned int rom_size = 0;
// zipfile support
if(!strcmp((char *)ext.PtrZ(), ".zip")) {
fclose(rom);
res = CartLoadZip((const char *) writeBuf.PtrZ(), &rom_data, &rom_size);
if(res) {
User::Leave(res);
return;
}
} else {
if( (res = PicoCartLoad(rom, &rom_data, &rom_size)) ) {
DEBUGPRINT(_L("PicoCartLoad() failed."));
fclose(rom);
User::Leave(2);
return;
}
fclose(rom);
}
// detect wrong files (Pico crashes on very small files), also see if ROM EP is good
if(rom_size <= 0x200 || strncmp((char *)rom_data, "Pico", 4) == 0 ||
((*(TUint16 *)(rom_data+4)<<16)|(*(TUint16 *)(rom_data+6))) >= (int)rom_size) {
free(rom_data);
rom_data = 0;
User::Leave(3); // not a ROM
}
DEBUGPRINT(_L("PicoCartInsert(0x%08X, %d);"), rom_data, rom_size);
if(PicoCartInsert(rom_data, rom_size)) {
User::Leave(2);
return;
}
pico_was_reset = 1;
// global ROM file name for later use
RomFileName = (const char *) writeBuf.PtrZ();
// load SRAM for this ROM
if(currentConfig.iFlags & 1)
saveLoadGame(1, 1);
// debug
#ifdef __DEBUG_PRINT
TInt cells = User::CountAllocCells();
TInt mem;
User::AllocSize(mem);
DEBUGPRINT(_L("comm: cels=%d, size=%d KB"), cells, mem/1024);
gamestate = PGS_DebugHeap;
gamestate_prev = PGS_Running;
#else
gamestate = PGS_Running;
#endif
}