321 lines
7.1 KiB
C++
321 lines
7.1 KiB
C++
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#include "WindacPlay.h"
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#include "api__in_cdda.h"
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int WindacPlay::threadProc2()
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{
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while (1)
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{
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if (need_seek != -1)
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{
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current_sector = start_sector;
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current_sector += ((need_seek * 75) / 1000);
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bytes_in_sbuf = 0;
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line.outMod->Flush(need_seek);
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decode_pos_ms = need_seek;
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need_seek = -1;
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}
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if (!killswitch && bytes_in_sbuf <= 0 && current_sector.GetHSG() < end_sector.GetHSG())
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{
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if (!scsi->Get_DriveStatus().CDPresent)
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{
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//infos->error("No CD present!");
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PostMessage(line.hMainWindow, WM_WA_MPEG_EOF, 0, 0);
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return 0;
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}
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unsigned char *s = sbuf;
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while ((bytes_in_sbuf < buf_size*2352) && (current_sector.GetHSG() < end_sector.GetHSG()) && !killswitch)
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{
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int n = min((int)16, (int)(end_sector.GetHSG() - current_sector.GetHSG()));
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memset(s, 0, n*2352);
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scsi->ReadCDDA(current_sector, n, s);
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while (!scsi->WaitCDDA() && !killswitch) Sleep(66);
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bytes_in_sbuf += n * 2352;
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s += n * 2352;
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current_sector += n;
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}
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}
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if (!bytes_in_sbuf && !killswitch)
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{
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//wait for output to be finished
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line.outMod->Write(NULL, 0);
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while (!killswitch && line.outMod->IsPlaying()) Sleep(10);
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if (!killswitch)
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PostMessage(line.hMainWindow, WM_WA_MPEG_EOF, 0, 0);
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return 0;
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}
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if (killswitch) return 0;
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char sample_buffer[576*4*2] = {0};
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int bytes = sizeof(sample_buffer) / 2; // enough room for dsp bullcrap
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bytes = min((int)bytes_in_sbuf, (int)bytes);
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memcpy(sample_buffer, sbuf, bytes);
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if (bytes_in_sbuf > bytes) memcpy(sbuf, sbuf + bytes, bytes_in_sbuf - bytes);
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bytes_in_sbuf -= bytes;
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int obytes = bytes;
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line.VSAAddPCMData(sample_buffer, g_nch, 16, line.outMod->GetWrittenTime() /*decode_pos_ms*/);
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line.SAAddPCMData(sample_buffer, g_nch, 16, line.outMod->GetWrittenTime() /*decode_pos_ms*/);
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if (line.dsp_isactive())
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bytes = line.dsp_dosamples((short *)sample_buffer, bytes / g_nch / 2, 16, g_nch, 44100) * (g_nch * 2);
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while (line.outMod->CanWrite() < bytes && !killswitch) Sleep(66);
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if (killswitch) return 0;
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line.outMod->Write(sample_buffer, bytes);
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decode_pos_ms += ((obytes / g_nch / 2) * 1000) / 44100;
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}
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return 0;
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}
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void WindacPlay::stop()
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{
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if (hThread)
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{
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killswitch = 1;
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WaitForSingleObject(hThread, INFINITE);
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}
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if (needsToClose)
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{
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needsToClose = false;
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}
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line.outMod->Close();
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}
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int WindacPlay::open(wchar_t drive, int track) //called by winampGetExtendedRead
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{
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g_drive = drive;
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if (!inited && !LoadASPI())
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{
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g_drive = 0;
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return 1;
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}
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inited = 1;
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int drivenum = 0;
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getTrackInfos(&drivenum, (char)drive);
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m_pMapDrive = new CMapDrive(TRUE);
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int nbdrives = m_pMapDrive->GetMaxDrives();
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if (!nbdrives) return 0;
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int host = -1, id = -1, lun = -1;
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if (getSCSIIDFromDrive((char)drive, &host, &id, &lun))
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{
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int found = 0;
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for (int i = 0;i < nbdrives;i++)
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{
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drive_info = m_pMapDrive->GetInfo(i);
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if (drive_info.HostAdapterNumber == host && drive_info.ID == id && drive_info.LUN == lun)
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{
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found = 1;
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break;
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}
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}
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if (!found)
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{
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s_last_error = "Drive not found";
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return 1;
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}
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}
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else
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{
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// can't figure out the SCSI ID, oh well, try the gay method
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TDriveInfo *tdi = &m_pMapDrive->GetInfo(drivenum);
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if (!tdi)
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{
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s_last_error = "Drive not found";
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return 1;
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}
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drive_info = *tdi;
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}
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scsi = new CSCSICD((char)drive, drive_info);
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TDriveStatus status = scsi->Get_DriveStatus();
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if (!status.CDPresent)
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{
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s_last_error = "CD not present";
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//infos->warning("No CD present!");
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g_drive=0;
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return 1;
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}
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TTrackList track_info = {0};
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track_info.TrackNummer = track;
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scsi->ReadTrackInfo(track_info);
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if (track_info.Flags.DataTrack)
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{
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s_last_error = "Cannot play track";
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//infos->warning("Can't play data tracks");
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g_drive=0;
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return 1;
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}
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start_sector = track_info.StartSektor;
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current_sector = start_sector;
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end_sector = start_sector;
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slength = track_info.Laenge;
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end_sector += slength;
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g_playlength = (slength / 75) * 1000;
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g_nch = track_info.Flags.AudioChannels;
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g_srate = 44100;
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g_bps = 16;
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scsi->PrepareCDDA();
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if (!sbuf)
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sbuf = (unsigned char *)malloc(2352 * buf_size);
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bytes_in_sbuf = 0;
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last_eject_scan = 0;
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return 0;
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}
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int WindacPlay::play(wchar_t drive, int track) //called by winamp2's normal(old) play() interface
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{
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if (open(drive, track)) return 1;
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// do this here as it helps to prevent an audio glitch on first playback and volume is set low
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setvolume(a_v, a_p);
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int maxlat = line.outMod->Open(44100, g_nch, 16, -1, -1);
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if (maxlat < 0)
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{
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g_drive=0;
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return 1;
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}
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line.SetInfo(1411, 44, g_nch, 1);
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line.SAVSAInit(maxlat, 44100);
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line.VSASetInfo(g_nch, 44100);
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line.is_seekable = 1;
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killswitch = 0;
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DWORD thread_id;
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hThread = CreateThread(NULL, NULL, &threadProc, (LPVOID)this, NULL, &thread_id);
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SetThreadPriority(hThread, AGAVE_API_CONFIG->GetInt(playbackConfigGroupGUID, L"priority", THREAD_PRIORITY_HIGHEST));
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//open the device thru MCI (for getfileinfo to work properly)
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g_playtrack = track;
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needsToClose = true;
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return 0;
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}
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int WindacPlay::read(char *dest, int len, int *killswitch) //called by winampGetExtendedRead_getData
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{
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int l = 0;
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while (l < len && !*killswitch)
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{
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if (!*killswitch && bytes_in_sbuf <= 0 && current_sector.GetHSG() < end_sector.GetHSG())
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{
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//scan for ejected CD only every 2 seconds
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if (last_eject_scan + 5000 < GetTickCount())
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{
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int cnt = 5;
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while (!scsi->Get_DriveStatus().CDPresent && cnt--)
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{
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Sleep(100);
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}
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if (cnt < 0 && !scsi->Get_DriveStatus().CDPresent)
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{
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//infos->error("No CD present!");
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return -1;
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}
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last_eject_scan = GetTickCount();
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}
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unsigned char *s = sbuf;
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while ((bytes_in_sbuf < buf_size*2352) && (current_sector.GetHSG() < end_sector.GetHSG()))
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{
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int n = min((int)16, (int)(end_sector.GetHSG() - current_sector.GetHSG()));
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memset(s, 0, n*2352);
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scsi->ReadCDDA(current_sector, n, s);
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while (!scsi->WaitCDDA() && !*killswitch) Sleep(66);
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if (*killswitch) break;
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bytes_in_sbuf += n * 2352;
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s += n * 2352;
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current_sector += n;
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}
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}
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if (!bytes_in_sbuf) break;
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int bytes = min(bytes_in_sbuf, len - l);
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memcpy(dest + l, sbuf, bytes);
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if (bytes_in_sbuf > bytes) memcpy(sbuf, sbuf + bytes, bytes_in_sbuf - bytes);
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bytes_in_sbuf -= bytes;
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l += bytes;
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}
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return l;
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}
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void WindacPlay::getTrackInfos(int *drivenum, char driveletter)
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{
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//finds first cdrom drive letter
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char firstcd = 'D';
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{
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DWORD drives = GetLogicalDrives();
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int nb = 0;
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for (int drivemask = 0; (drivemask < 32) && (nb < 4); drivemask++)
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{
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if (drives&(1 << drivemask))
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{
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wchar_t tmp[16] = {0};
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wsprintf(tmp, L"%c:\\", L'A' + drivemask);
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if (GetDriveType(tmp) == DRIVE_CDROM)
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{
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firstcd = 'A' + drivemask;
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break;
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}
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}
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}
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}
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*drivenum = driveletter - (unsigned char)firstcd;
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}
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WindacPlay::WindacPlay()
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{
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scsi = NULL;
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sbuf = NULL;
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m_pMapDrive = NULL;
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buf_size = 64; //make it configitem
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hThread = NULL;
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decode_pos_ms = 0;
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inited = 0;
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need_seek = -1;
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needsToClose = false;
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}
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WindacPlay::~WindacPlay()
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{
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if (scsi)
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{
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scsi->FinishCDDA();
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delete(scsi);
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}
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delete(m_pMapDrive);
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free(sbuf);
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if (inited) FreeASPI();
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if (needsToClose)
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{
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needsToClose = false;
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}
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}
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