long __declspec(dllexport) DLL_LoadGYM(const char *szFileName)
{
GYMSong* result = new GYMSong;
FILE* f = fopen(szFileName,"rb");
int iResult = 0;
if (f)
{
WaitForSingleObject(hMutex,INFINITE);
fseek(f,0,SEEK_END);
result->gymSize = ftell(f);
fseek(f,0,SEEK_SET);
result->gym = (unsigned char*)malloc(result->gymSize*sizeof(unsigned char));
unsigned int iRead = 0;
result->gymPos = result->gym;
while (iRead < result->gymSize)
{
fread(result->gym,1,result->gymSize,f);
int iCurrRead = fread(result->gymPos,1,16384,f);
if (iCurrRead > 0)
{
iRead += iCurrRead;
ReleaseMutex(hMutex);
Sleep(10); // prevent starving pap during xfade
WaitForSingleObject(hMutex,INFINITE);
}
else
break;
}
fclose(f);
result->gymTag = (GYMSong::GYMTAG*)result->gym;
if (strncmp(((GYMSong::GYMTAG*)result->gym)->gym_id, "GYMX", 4) == 0)
{
result->gymStart = result->gymPos = result->gym+sizeof(GYMSong::GYMTAG);
result->gymSize -= sizeof(GYMSong::GYMTAG);
result->iLength = calc_gym_time_length(result);
}
else
{
result->gymStart = result->gymPos = result->gym;
result->gymTag = NULL;
}
result->YM2612 = YM2612;
result->PSG = PSG;
Start_Play_GYM(48000);
iResult = (long)result;
ReleaseMutex(hMutex);
}
return (int)iResult;
}
int input_gym::open_file(CFILE *r, SONGINFO *info, unsigned int flags)
{
__int64 size64 = r->get_length();
if (size64 < 0) return 0;
unsigned int size = (unsigned int)size64;
if (!gym_backup.new_block(size))
return 0;
void *gymFile = gym_backup.get_ptr();
if (r->read(gymFile, size) != size)
{
r->seek(0);
return 0;
}
gym_tag = (GYMTAG *)gym_backup.get_ptr();
if (memcmp(gym_tag->gym_id, "GYMX", 4) == 0)
{
// strings might not be null-terminated...
char tempStr[257];
memcpy(tempStr, gym_tag->song_title, 32);
tempStr[32] = '\0';
if (strcmp(tempStr, "") != 0)
{
info->meta_add_ansi("TITLE", tempStr);
}
memcpy(tempStr, gym_tag->game_title, 32);
tempStr[32] = '\0';
if (strcmp(tempStr, "") != 0)
{
info->meta_add_ansi("ALBUM", tempStr);
}
memcpy(tempStr, gym_tag->game_publisher, 32);
tempStr[32] = '\0';
if (strcmp(tempStr, "") != 0)
{
info->meta_add_ansi("PUBLISHER", tempStr);
}
memcpy(tempStr, gym_tag->dumper_emu, 32);
tempStr[32] = '\0';
if (strcmp(tempStr, "") != 0)
{
info->meta_add_ansi("EMULATOR", tempStr);
}
memcpy(tempStr, gym_tag->dumper_person, 32);
tempStr[32] = '\0';
if (strcmp(tempStr, "") != 0)
{
info->meta_add_ansi("DUMPER", tempStr);
}
memcpy(tempStr, gym_tag->comments, 256);
tempStr[256] = '\0';
if (strcmp(tempStr, "") != 0)
{
info->meta_add_ansi("COMMENT", tempStr);
}
gym_loop = gym_tag->looped;
if (gym_loop)
{
sprintf(tempStr, "%.2f seconds", gym_loop / 60.0);
info->meta_add_ansi("LOOPSAT", tempStr);
}
if (gym_tag->compressed)
{
gym_compressed = true;
if (memcmp((char *)((int)gym_tag + sizeof(GYMTAG)), "EZPK", 4) == 0)
{
info->meta_add_ansi("COMPRESSION", "EZPK");
if (!gym_loaded)
{
if (!load_ezpk_gym(gymFile)) return 0;
calc_gym_time_length(info);
gym_loaded = true;
}
}
else
{
info->meta_add_ansi("COMPRESSION", "ZLIB");
if (!gym_loaded)
{
if (!load_zlib_gym(gymFile)) return 0;
calc_gym_time_length(info);
gym_loaded = true;
}
}
}
else
{
gym_compressed = false;
info->meta_add_ansi("COMPRESSION", "none");
gym_start = (unsigned char *)gymFile + sizeof(GYMTAG);
gym_size = gym_backup.get_size() - sizeof(GYMTAG);
if (!gym_loaded)
{
calc_gym_time_length(info);
gym_loaded = true;
}
}
}
else
{
gym_tag = 0;
gym_loop = 0;
gym_compressed = false;
info->meta_add_ansi("COMPRESSION", "none");
gym_start = (unsigned char *)gymFile;
gym_size = gym_backup.get_size();
if (!gym_loaded)
{
calc_gym_time_length(info);
gym_loaded = true;
}
}
info->info_set("codec", "GYM");
info->info_set("extrainfo", "GYM");
return 1;
}