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;
}
char input_gym::open(CFILE * r, SONGINFO * info, unsigned int flags) //multiinstance safety ?
{
if (!open_file(r,info,flags)) return 0;
// if (!(flags & OPEN_FLAG_DECODE)) return 1;
char failed = false;
// g_decoder_sync.enter();
if (g_decoder == 0) g_decoder = this;
else if (g_decoder!=this) failed = true;
// g_decoder_sync.leave();
if (failed)
{
oslDebug("GYM decoder does not support multiple instances; please stop other decoding processes and try again");
return 0;
}
void *gymFile = gym_backup.get_ptr();
if (!gym_loaded)
{
if (gym_tag)
{
if (gym_tag -> compressed)
{
if (memcmp((char *)((int)gymFile + sizeof(GYMTAG)), "EZPK", 4) == 0)
{
// EZPK-compressed
if (!load_ezpk_gym(gymFile)) return 0;
}
else
{
// standard zlib-compressed
if (!load_zlib_gym(gymFile)) return 0;
}
}
else
{
// not compressed
gym_start = (unsigned char *)gymFile + sizeof(GYMTAG);
gym_size = gym_backup.get_size() - sizeof(GYMTAG);
}
}
else
{
// no tag, assume not compressed
gym_start = (unsigned char *)gymFile;
gym_size = gym_backup.get_size();
}
gym_loaded = true;
}
gym_pos = gym_start;
YM2612_Enable = cfg_ym2612_enable;
YM2612_Improv = cfg_ym2612_interp;
Chan_Enable[0] = cfg_chan1_enable;
Chan_Enable[1] = cfg_chan2_enable;
Chan_Enable[2] = cfg_chan3_enable;
Chan_Enable[3] = cfg_chan4_enable;
Chan_Enable[4] = cfg_chan5_enable;
Chan_Enable[5] = cfg_chan6_enable;
DAC_Enable = cfg_dac_enable;
PSG_Enable = cfg_psg_enable;
PSG_Improv = cfg_psg_interp;
PSG_Chan_Enable[0] = cfg_psg_chan1_enable;
PSG_Chan_Enable[1] = cfg_psg_chan2_enable;
PSG_Chan_Enable[2] = cfg_psg_chan3_enable;
PSG_Chan_Enable[3] = cfg_psg_chan4_enable;
playingSampleRate = cfg_samplerate;
Start_Play_GYM(playingSampleRate);
// sample_buffer.check_size(Seg_Lenght << 2);
sample_buffer.new_block(Seg_Lenght << 2);
return 1;
}
