| 1 | /* $Id: waveindart.cpp,v 1.6 2003-03-05 14:49:04 sandervl Exp $ */ | 
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| 2 |  | 
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| 3 | /* | 
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| 4 | * Wave record class | 
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| 5 | * | 
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| 6 | * Copyright 2001 Sander van Leeuwen (sandervl@xs4all.nl) | 
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| 7 | * | 
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| 8 | * TODO: mulaw, alaw & adpcm | 
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| 9 | * | 
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| 10 | * Project Odin Software License can be found in LICENSE.TXT | 
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| 11 | * | 
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| 12 | * | 
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| 13 | */ | 
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| 14 |  | 
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| 15 |  | 
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| 16 | /**************************************************************************** | 
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| 17 | * Includes                                                                 * | 
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| 18 | ****************************************************************************/ | 
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| 19 |  | 
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| 20 |  | 
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| 21 |  | 
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| 22 | #define  INCL_BASE | 
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| 23 | #define  INCL_OS2MM | 
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| 24 | #include <os2wrap.h>   //Odin32 OS/2 api wrappers | 
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| 25 | #include <os2mewrap.h> //Odin32 OS/2 MMPM/2 api wrappers | 
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| 26 | #include <stdlib.h> | 
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| 27 | #include <string.h> | 
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| 28 | #define  OS2_ONLY | 
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| 29 | #include <win32api.h> | 
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| 30 | #include <wprocess.h> | 
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| 31 |  | 
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| 32 | #include "misc.h" | 
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| 33 | #include "waveindart.h" | 
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| 34 | #include "initwinmm.h" | 
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| 35 |  | 
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| 36 | #define DBG_LOCALLOG    DBG_waveindart | 
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| 37 | #include "dbglocal.h" | 
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| 38 |  | 
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| 39 | #ifndef min | 
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| 40 | #define min(a, b) ((a > b) ? b : a) | 
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| 41 | #endif | 
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| 42 |  | 
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| 43 | #ifndef max | 
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| 44 | #define max(a, b) ((a > b) ? a : b) | 
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| 45 | #endif | 
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| 46 |  | 
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| 47 | LONG APIENTRY WaveInHandler(ULONG ulStatus, PMCI_MIX_BUFFER pBuffer, ULONG ulFlags); | 
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| 48 |  | 
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| 49 | static BOOL fwaveInFixedBuffers = FALSE; | 
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| 50 |  | 
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| 51 | //****************************************************************************** | 
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| 52 | // ODIN_waveInSetFixedBuffers | 
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| 53 | // | 
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| 54 | // Tell WINMM to use DART buffers of the same size as the first buffer delivered | 
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| 55 | // by waveInAddBuffer | 
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| 56 | // | 
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| 57 | //****************************************************************************** | 
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| 58 | void WIN32API ODIN_waveInSetFixedBuffers() | 
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| 59 | { | 
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| 60 | fwaveInFixedBuffers = TRUE; | 
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| 61 | } | 
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| 62 | /******************************************************************************/ | 
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| 63 | /******************************************************************************/ | 
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| 64 | DartWaveIn::DartWaveIn(LPWAVEFORMATEX pwfx, ULONG fdwOpen, ULONG nCallback, ULONG dwInstance) | 
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| 65 | : WaveInOut(pwfx, fdwOpen, nCallback, dwInstance) | 
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| 66 | { | 
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| 67 | MCI_GENERIC_PARMS  GenericParms; | 
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| 68 | MCI_AMP_OPEN_PARMS AmpOpenParms; | 
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| 69 | APIRET rc; | 
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| 70 |  | 
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| 71 | fOverrun        = FALSE; | 
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| 72 | fMixerSetup   = FALSE; | 
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| 73 |  | 
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| 74 | MixBuffer     = (MCI_MIX_BUFFER *)malloc(PREFILLBUF_DART_REC*sizeof(MCI_MIX_BUFFER)); | 
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| 75 | MixSetupParms = (MCI_MIXSETUP_PARMS *)malloc(sizeof(MCI_MIXSETUP_PARMS)); | 
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| 76 | BufferParms   = (MCI_BUFFER_PARMS *)malloc(sizeof(MCI_BUFFER_PARMS)); | 
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| 77 | if(!MixBuffer || !MixSetupParms || !BufferParms) { | 
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| 78 | dprintf(("ERROR: malloc failed!!")); | 
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| 79 | ulError = MMSYSERR_NOMEM; | 
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| 80 | return; | 
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| 81 | } | 
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| 82 |  | 
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| 83 | ulBufSize       = DART_BUFSIZE_REC; | 
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| 84 |  | 
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| 85 | dprintf(("waveInOpen: samplerate %d, numChan %d bps %d (%d), format %x", SampleRate, nChannels, BitsPerSample, pwfx->nBlockAlign, pwfx->wFormatTag)); | 
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| 86 | // Setup the open structure, pass the playlist and tell MCI_OPEN to use it | 
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| 87 | memset(&AmpOpenParms,0,sizeof(AmpOpenParms)); | 
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| 88 |  | 
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| 89 | AmpOpenParms.usDeviceID = ( USHORT ) 0; | 
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| 90 | AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX; | 
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| 91 |  | 
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| 92 | rc = mymciSendCommand(0, MCI_OPEN, MCI_WAIT | MCI_OPEN_TYPE_ID | MCI_OPEN_SHAREABLE, | 
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| 93 | (PVOID) &AmpOpenParms, 0); | 
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| 94 | DeviceId = AmpOpenParms.usDeviceID; | 
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| 95 | if(rc) { | 
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| 96 | dprintf(("MCI_OPEN failed\n")); | 
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| 97 | mciError(rc); | 
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| 98 | ulError = MMSYSERR_NODRIVER; | 
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| 99 | } | 
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| 100 | if(rc == 0) { | 
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| 101 | //Grab exclusive rights to device instance (NOT entire device) | 
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| 102 | GenericParms.hwndCallback = 0;  //Not needed, so set to 0 | 
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| 103 | rc = mymciSendCommand(DeviceId, MCI_ACQUIREDEVICE, MCI_EXCLUSIVE_INSTANCE, | 
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| 104 | (PVOID)&GenericParms, 0); | 
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| 105 | if(rc) { | 
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| 106 | dprintf(("MCI_ACQUIREDEVICE failed\n")); | 
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| 107 | mciError(rc); | 
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| 108 | ulError = MMSYSERR_NOTENABLED; | 
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| 109 | } | 
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| 110 | } | 
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| 111 |  | 
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| 112 | if(!ulError) | 
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| 113 | callback(WIM_OPEN, 0, 0); | 
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| 114 | } | 
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| 115 | /******************************************************************************/ | 
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| 116 | /******************************************************************************/ | 
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| 117 | DartWaveIn::~DartWaveIn() | 
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| 118 | { | 
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| 119 | MCI_GENERIC_PARMS    GenericParms; | 
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| 120 |  | 
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| 121 | State = STATE_STOPPED; | 
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| 122 |  | 
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| 123 | if(!ulError) | 
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| 124 | { | 
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| 125 | // Generic parameters | 
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| 126 | GenericParms.hwndCallback = 0;   //hwndFrame | 
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| 127 |  | 
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| 128 | // Stop recording. | 
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| 129 | mymciSendCommand(DeviceId, MCI_STOP,MCI_WAIT, (PVOID)&GenericParms,0); | 
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| 130 |  | 
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| 131 | mymciSendCommand(DeviceId, | 
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| 132 | MCI_BUFFER, | 
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| 133 | MCI_WAIT | MCI_DEALLOCATE_MEMORY, | 
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| 134 | (PVOID)&BufferParms, | 
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| 135 | 0); | 
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| 136 |  | 
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| 137 | // Generic parameters | 
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| 138 | GenericParms.hwndCallback = 0;   //hwndFrame | 
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| 139 |  | 
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| 140 | // Close the device | 
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| 141 | mymciSendCommand(DeviceId, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0); | 
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| 142 | } | 
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| 143 | if(!ulError) | 
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| 144 | { | 
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| 145 | callback(WIM_CLOSE, 0, 0); | 
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| 146 | } | 
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| 147 |  | 
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| 148 | if(MixBuffer) | 
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| 149 | free(MixBuffer); | 
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| 150 | if(MixSetupParms) | 
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| 151 | free(MixSetupParms); | 
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| 152 | if(BufferParms) | 
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| 153 | free(BufferParms); | 
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| 154 | } | 
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| 155 | /******************************************************************************/ | 
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| 156 | /******************************************************************************/ | 
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| 157 | MMRESULT DartWaveIn::start() | 
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| 158 | { | 
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| 159 | MCI_GENERIC_PARMS    GenericParms = {0}; | 
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| 160 | MCI_AMP_OPEN_PARMS   AmpOpenParms; | 
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| 161 | MCI_CONNECTOR_PARMS  ConnectorParms; | 
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| 162 | MCI_AMP_SET_PARMS    AmpSetParms ; | 
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| 163 | APIRET rc; | 
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| 164 | int i, curbuf, buflength; | 
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| 165 |  | 
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| 166 | dprintf(("DartWaveIn::start")); | 
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| 167 | if(State == STATE_RECORDING) | 
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| 168 | return(MMSYSERR_NOERROR); | 
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| 169 |  | 
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| 170 | //if the app hasn't yet given us any buffers, then we can't possibly determine the | 
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| 171 | //right buffer size for DART recording, so postpone recording until the | 
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| 172 | //first buffer has been added | 
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| 173 | if(wavehdr == NULL) { | 
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| 174 | wmutex.enter(); | 
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| 175 | State = STATE_POSTPONE_RECORDING; | 
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| 176 | wmutex.leave(); | 
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| 177 | return MMSYSERR_NOERROR; | 
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| 178 | } | 
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| 179 |  | 
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| 180 | if(fMixerSetup == FALSE) | 
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| 181 | { | 
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| 182 | dprintf(("device acquired\n")); | 
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| 183 | /* Set the MixSetupParms data structure to match the loaded file. | 
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| 184 | * This is a global that is used to setup the mixer. | 
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| 185 | */ | 
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| 186 | memset(MixSetupParms, 0, sizeof( MCI_MIXSETUP_PARMS ) ); | 
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| 187 |  | 
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| 188 | MixSetupParms->ulBitsPerSample = BitsPerSample; | 
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| 189 | MixSetupParms->ulSamplesPerSec = SampleRate; | 
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| 190 | MixSetupParms->ulFormatTag     = MCI_WAVE_FORMAT_PCM; | 
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| 191 | MixSetupParms->ulChannels      = nChannels; | 
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| 192 |  | 
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| 193 | dprintf(("bps %d, sps %d chan %d\n", BitsPerSample, SampleRate, nChannels)); | 
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| 194 |  | 
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| 195 | /* Setup the mixer for recording of wave data | 
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| 196 | */ | 
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| 197 | MixSetupParms->ulFormatMode = MCI_RECORD; | 
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| 198 | MixSetupParms->ulDeviceType = MCI_DEVTYPE_WAVEFORM_AUDIO; | 
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| 199 | MixSetupParms->pmixEvent    = WaveInHandler; | 
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| 200 |  | 
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| 201 | rc = mymciSendCommand(DeviceId, MCI_MIXSETUP, MCI_WAIT | MCI_MIXSETUP_INIT, | 
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| 202 | (PVOID)MixSetupParms, 0); | 
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| 203 |  | 
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| 204 | if ( rc != MCIERR_SUCCESS ) { | 
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| 205 | mciError(rc); | 
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| 206 | mymciSendCommand(DeviceId, MCI_RELEASEDEVICE, MCI_WAIT, | 
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| 207 | (PVOID)&GenericParms, 0); | 
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| 208 | return(MMSYSERR_NOTSUPPORTED); | 
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| 209 | } | 
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| 210 |  | 
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| 211 | /* | 
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| 212 | * Set up the BufferParms data structure and allocate | 
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| 213 | * device buffers from the Amp-Mixer | 
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| 214 | */ | 
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| 215 |  | 
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| 216 | int consumerate = getAvgBytesPerSecond(); | 
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| 217 | //SvL: Recording usually isn't as sensitive to timing as playback | 
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| 218 | //     Dividing by 8 instead of 32 here. Change if necessary. | 
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| 219 | int minbufsize = consumerate/8; | 
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| 220 |  | 
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| 221 | LPWAVEHDR pwh = wavehdr; | 
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| 222 | if(pwh) { | 
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| 223 | if(fwaveInFixedBuffers) { | 
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| 224 | ulBufSize = pwh->dwBufferLength; | 
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| 225 | } | 
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| 226 | else | 
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| 227 | { | 
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| 228 | dprintf(("mix setup %d, %d\n", pwh->dwBufferLength, pwh->dwBufferLength)); | 
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| 229 |  | 
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| 230 | ulBufSize = pwh->dwBufferLength/2; | 
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| 231 | } | 
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| 232 | if(ulBufSize > minbufsize) { | 
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| 233 | dprintf(("set buffer size to %d bytes (org size = %d)", minbufsize, pwh->dwBufferLength)); | 
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| 234 | ulBufSize = minbufsize; | 
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| 235 | } | 
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| 236 | } | 
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| 237 | else ulBufSize = minbufsize; | 
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| 238 |  | 
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| 239 | MixSetupParms->ulBufferSize = ulBufSize; | 
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| 240 |  | 
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| 241 | BufferParms->ulNumBuffers = PREFILLBUF_DART_REC; | 
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| 242 | BufferParms->ulBufferSize = MixSetupParms->ulBufferSize; | 
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| 243 | BufferParms->pBufList     = MixBuffer; | 
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| 244 |  | 
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| 245 | for(i=0;i<PREFILLBUF_DART_REC;i++) { | 
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| 246 | MixBuffer[i].ulUserParm = (ULONG)this; | 
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| 247 | } | 
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| 248 |  | 
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| 249 | rc = mymciSendCommand(DeviceId, | 
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| 250 | MCI_BUFFER, | 
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| 251 | MCI_WAIT | MCI_ALLOCATE_MEMORY, | 
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| 252 | (PVOID)BufferParms, | 
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| 253 | 0); | 
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| 254 |  | 
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| 255 | if(ULONG_LOWD(rc) != MCIERR_SUCCESS) { | 
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| 256 | mciError(rc); | 
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| 257 | mymciSendCommand(DeviceId, MCI_RELEASEDEVICE, MCI_WAIT, | 
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| 258 | (PVOID)&GenericParms, 0); | 
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| 259 | return(MMSYSERR_NOTSUPPORTED); | 
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| 260 | } | 
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| 261 |  | 
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| 262 | //TODO: don't do this here. Select line or mic depending on aux settings | 
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| 263 | //(until we really support the mixer extensions anyway) | 
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| 264 | /* Set the connector to 'line in' */ | 
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| 265 | memset( &ConnectorParms, '\0', sizeof( MCI_CONNECTOR_PARMS ) ); | 
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| 266 | ConnectorParms.ulConnectorType = MCI_LINE_IN_CONNECTOR; | 
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| 267 | rc = mymciSendCommand(DeviceId, MCI_CONNECTOR, MCI_WAIT | | 
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| 268 | MCI_ENABLE_CONNECTOR | MCI_CONNECTOR_TYPE, | 
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| 269 | ( PVOID ) &ConnectorParms, 0 ); | 
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| 270 |  | 
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| 271 | /* Allow the user to hear what is being recorded | 
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| 272 | * by turning the monitor on | 
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| 273 | */ | 
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| 274 | memset( &AmpSetParms, '\0', sizeof( MCI_AMP_SET_PARMS ) ); | 
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| 275 | AmpSetParms.ulItem = MCI_AMP_SET_MONITOR; | 
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| 276 | rc = mymciSendCommand(DeviceId, | 
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| 277 | MCI_SET, | 
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| 278 | MCI_WAIT | MCI_SET_ON | MCI_SET_ITEM, | 
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| 279 | ( PVOID ) &AmpSetParms, | 
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| 280 | 0 ); | 
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| 281 |  | 
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| 282 | wmutex.enter(); | 
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| 283 | fMixerSetup = TRUE; | 
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| 284 | } | 
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| 285 |  | 
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| 286 | for(i=0;i<PREFILLBUF_DART_REC;i++) { | 
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| 287 | memset(MixBuffer[i].pBuffer, 0, MixBuffer[i].ulBufferLength); | 
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| 288 | } | 
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| 289 | dprintf(("Dart opened, bufsize = %d\n", MixBuffer[0].ulBufferLength)); | 
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| 290 |  | 
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| 291 | dprintf(("MixSetupParms = %X\n", MixSetupParms)); | 
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| 292 | State    = STATE_RECORDING; | 
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| 293 | fOverrun = FALSE; | 
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| 294 | wmutex.leave(); | 
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| 295 |  | 
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| 296 | dprintf(("Dart recording")); | 
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| 297 |  | 
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| 298 | // Start recording. | 
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| 299 | USHORT selTIB = RestoreOS2FS(); // save current FS selector | 
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| 300 | MixSetupParms->pmixRead(MixSetupParms->ulMixHandle, &MixBuffer[0], PREFILLBUF_DART_REC); | 
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| 301 | SetFS(selTIB);           // switch back to the saved FS selector | 
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| 302 |  | 
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| 303 | return(MMSYSERR_NOERROR); | 
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| 304 | } | 
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| 305 | /******************************************************************************/ | 
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| 306 | /******************************************************************************/ | 
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| 307 | MMRESULT DartWaveIn::stop() | 
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| 308 | { | 
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| 309 | MCI_GENERIC_PARMS Params; | 
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| 310 |  | 
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| 311 | wmutex.enter(); | 
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| 312 | if(State != STATE_RECORDING) { | 
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| 313 | State = STATE_STOPPED; | 
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| 314 | wmutex.leave(); | 
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| 315 | return(MMSYSERR_NOERROR); | 
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| 316 | } | 
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| 317 |  | 
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| 318 | State = STATE_STOPPED; | 
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| 319 | wmutex.leave(); | 
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| 320 |  | 
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| 321 | memset(&Params, 0, sizeof(Params)); | 
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| 322 |  | 
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| 323 | // Stop recording. | 
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| 324 | mymciSendCommand(DeviceId, MCI_STOP, MCI_WAIT, (PVOID)&Params, 0); | 
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| 325 |  | 
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| 326 | return(MMSYSERR_NOERROR); | 
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| 327 | } | 
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| 328 | /******************************************************************************/ | 
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| 329 | /******************************************************************************/ | 
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| 330 | MMRESULT DartWaveIn::reset() | 
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| 331 | { | 
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| 332 | MCI_GENERIC_PARMS Params; | 
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| 333 | LPWAVEHDR tmpwavehdr; | 
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| 334 |  | 
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| 335 | dprintf(("DartWaveIn::reset %s", (State == STATE_RECORDING) ? "recording" : "stopped")); | 
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| 336 |  | 
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| 337 | wmutex.enter(); | 
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| 338 | if(State == STATE_POSTPONE_RECORDING) { | 
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| 339 | dprintf(("reset postponed recording")); | 
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| 340 | State = STATE_STOPPED; | 
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| 341 | wmutex.leave(); | 
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| 342 | return MMSYSERR_NOERROR; | 
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| 343 | } | 
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| 344 | if(State != STATE_RECORDING) { | 
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| 345 | wmutex.leave(); | 
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| 346 | return(MMSYSERR_HANDLEBUSY); | 
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| 347 | } | 
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| 348 | wmutex.leave(); | 
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| 349 |  | 
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| 350 | memset(&Params, 0, sizeof(Params)); | 
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| 351 |  | 
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| 352 | // Stop recording | 
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| 353 | mymciSendCommand(DeviceId, MCI_STOP, MCI_WAIT, (PVOID)&Params, 0); | 
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| 354 |  | 
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| 355 | wmutex.enter(); | 
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| 356 | while(wavehdr) | 
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| 357 | { | 
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| 358 | wavehdr->dwFlags |= WHDR_DONE; | 
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| 359 | wavehdr->dwFlags &= ~WHDR_INQUEUE; | 
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| 360 | tmpwavehdr         = wavehdr; | 
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| 361 | wavehdr            = wavehdr->lpNext; | 
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| 362 | tmpwavehdr->lpNext = NULL; | 
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| 363 |  | 
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| 364 | wmutex.leave(); | 
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| 365 |  | 
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| 366 | callback(WIM_DATA, (ULONG)tmpwavehdr, 0); | 
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| 367 |  | 
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| 368 | wmutex.enter(); | 
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| 369 | } | 
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| 370 | wavehdr   = NULL; | 
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| 371 | State     = STATE_STOPPED; | 
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| 372 | fOverrun = FALSE; | 
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| 373 |  | 
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| 374 | wmutex.leave(); | 
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| 375 | return(MMSYSERR_NOERROR); | 
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| 376 | } | 
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| 377 | /******************************************************************************/ | 
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| 378 | /******************************************************************************/ | 
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| 379 | MMRESULT DartWaveIn::addBuffer(LPWAVEHDR pwh, UINT cbwh) | 
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| 380 | { | 
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| 381 | int i; | 
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| 382 |  | 
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| 383 | wmutex.enter(); | 
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| 384 | pwh->lpNext          = NULL; | 
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| 385 | pwh->dwBytesRecorded = 0; | 
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| 386 | if(wavehdr) { | 
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| 387 | WAVEHDR *chdr = wavehdr; | 
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| 388 | while(chdr->lpNext) { | 
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| 389 | chdr = chdr->lpNext; | 
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| 390 | } | 
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| 391 | chdr->lpNext = pwh; | 
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| 392 | } | 
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| 393 | else    wavehdr = pwh; | 
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| 394 | wmutex.leave(); | 
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| 395 |  | 
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| 396 | if(State == STATE_POSTPONE_RECORDING) { | 
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| 397 | //if recording was postponed due to lack of buffers, then start now | 
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| 398 | start(); | 
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| 399 | } | 
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| 400 | return(MMSYSERR_NOERROR); | 
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| 401 | } | 
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| 402 | /******************************************************************************/ | 
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| 403 | /******************************************************************************/ | 
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| 404 | ULONG DartWaveIn::getPosition() | 
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| 405 | { | 
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| 406 | MCI_STATUS_PARMS mciStatus = {0}; | 
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| 407 | ULONG rc, nrbytes; | 
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| 408 |  | 
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| 409 | if(State == STATE_STOPPED) { | 
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| 410 | dprintf(("Not recording; return 0 position")); | 
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| 411 | return 0; | 
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| 412 | } | 
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| 413 |  | 
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| 414 | mciStatus.ulItem = MCI_STATUS_POSITION; | 
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| 415 | rc = mymciSendCommand(DeviceId, MCI_STATUS, MCI_STATUS_ITEM|MCI_WAIT, (PVOID)&mciStatus, 0); | 
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| 416 | if((rc & 0xFFFF) == MCIERR_SUCCESS) { | 
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| 417 | nrbytes = (mciStatus.ulReturn * (getAvgBytesPerSecond()/1000)); | 
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| 418 | return nrbytes;; | 
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| 419 | } | 
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| 420 | mciError(rc); | 
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| 421 | return 0xFFFFFFFF; | 
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| 422 | } | 
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| 423 | /******************************************************************************/ | 
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| 424 | /******************************************************************************/ | 
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| 425 | int DartWaveIn::getNumDevices() | 
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| 426 | { | 
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| 427 | MCI_GENERIC_PARMS  GenericParms; | 
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| 428 | MCI_AMP_OPEN_PARMS AmpOpenParms; | 
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| 429 | APIRET rc; | 
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| 430 |  | 
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| 431 | // Setup the open structure, pass the playlist and tell MCI_OPEN to use it | 
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| 432 | memset(&AmpOpenParms,0,sizeof(AmpOpenParms)); | 
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| 433 |  | 
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| 434 | AmpOpenParms.usDeviceID = ( USHORT ) 0; | 
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| 435 | AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX; | 
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| 436 |  | 
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| 437 | rc = mymciSendCommand(0, MCI_OPEN, | 
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| 438 | MCI_WAIT | MCI_OPEN_TYPE_ID | MCI_OPEN_SHAREABLE, | 
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| 439 | (PVOID) &AmpOpenParms, | 
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| 440 | 0); | 
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| 441 |  | 
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| 442 | if(rc) { | 
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| 443 | return 0; //no devices present | 
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| 444 | } | 
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| 445 |  | 
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| 446 | // Generic parameters | 
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| 447 | GenericParms.hwndCallback = 0;   //hwndFrame | 
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| 448 |  | 
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| 449 | // Close the device | 
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| 450 | mymciSendCommand(AmpOpenParms.usDeviceID, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0); | 
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| 451 |  | 
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| 452 | return 1; | 
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| 453 | } | 
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| 454 | /******************************************************************************/ | 
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| 455 | /******************************************************************************/ | 
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| 456 | BOOL DartWaveIn::queryFormat(ULONG formatTag, ULONG nChannels, | 
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| 457 | ULONG nSamplesPerSec, ULONG wBitsPerSample) | 
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| 458 | { | 
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| 459 | MCI_WAVE_GETDEVCAPS_PARMS mciAudioCaps; | 
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| 460 | MCI_GENERIC_PARMS    GenericParms; | 
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| 461 | MCI_OPEN_PARMS       mciOpenParms;         /* open parms for MCI_OPEN             */ | 
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| 462 | int i, freqbits = 0; | 
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| 463 | ULONG rc, DeviceId; | 
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| 464 | BOOL winrc; | 
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| 465 |  | 
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| 466 | dprintf(("DartWaveIn::queryFormat %x srate=%d, nchan=%d, bps=%d", formatTag, nSamplesPerSec, nChannels, wBitsPerSample)); | 
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| 467 |  | 
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| 468 | memset(&mciOpenParms,            /* Object to fill with zeros.       */ | 
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| 469 | 0,                        /* Value to place into the object.  */ | 
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| 470 | sizeof( mciOpenParms ) ); /* How many zero's to use.          */ | 
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| 471 |  | 
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| 472 | mciOpenParms.pszDeviceType = (PSZ)MCI_DEVTYPE_WAVEFORM_AUDIO; | 
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| 473 |  | 
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| 474 | rc = mymciSendCommand( (USHORT) 0, | 
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| 475 | MCI_OPEN, | 
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| 476 | MCI_WAIT | MCI_OPEN_TYPE_ID, | 
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| 477 | (PVOID) &mciOpenParms, | 
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| 478 | 0); | 
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| 479 | if((rc & 0xFFFF) != MCIERR_SUCCESS) { | 
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| 480 | mciError(rc); | 
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| 481 | return(FALSE); | 
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| 482 | } | 
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| 483 | DeviceId = mciOpenParms.usDeviceID; | 
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| 484 |  | 
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| 485 | memset( &mciAudioCaps , 0, sizeof(MCI_WAVE_GETDEVCAPS_PARMS)); | 
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| 486 |  | 
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| 487 | mciAudioCaps.ulBitsPerSample = wBitsPerSample; | 
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| 488 | mciAudioCaps.ulFormatTag     = DATATYPE_WAVEFORM; | 
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| 489 | mciAudioCaps.ulSamplesPerSec = nSamplesPerSec; | 
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| 490 | mciAudioCaps.ulChannels      = nChannels; | 
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| 491 | mciAudioCaps.ulFormatMode    = MCI_RECORD; | 
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| 492 | mciAudioCaps.ulItem          = MCI_GETDEVCAPS_WAVE_FORMAT; | 
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| 493 |  | 
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| 494 | rc = mymciSendCommand(DeviceId,   /* Device ID    */ | 
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| 495 | MCI_GETDEVCAPS, | 
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| 496 | MCI_WAIT | MCI_GETDEVCAPS_EXTENDED | MCI_GETDEVCAPS_ITEM, | 
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| 497 | (PVOID) &mciAudioCaps, | 
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| 498 | 0); | 
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| 499 | if((rc & 0xFFFF) != MCIERR_SUCCESS) { | 
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| 500 | mciError(rc); | 
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| 501 | winrc = FALSE; | 
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| 502 | } | 
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| 503 | else  winrc = TRUE; | 
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| 504 |  | 
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| 505 | // Close the device | 
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| 506 | mymciSendCommand(DeviceId,MCI_CLOSE,MCI_WAIT,(PVOID)&GenericParms,0); | 
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| 507 | return(winrc); | 
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| 508 | } | 
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| 509 | /******************************************************************************/ | 
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| 510 | /******************************************************************************/ | 
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| 511 | void DartWaveIn::mciError(ULONG ulError) | 
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| 512 | { | 
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| 513 | #ifdef DEBUG | 
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| 514 | char szError[256] = ""; | 
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| 515 |  | 
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| 516 | mymciGetErrorString(ulError, szError, sizeof(szError)); | 
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| 517 | dprintf(("WINMM: DartWaveIn: %s\n", szError)); | 
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| 518 | #endif | 
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| 519 | } | 
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| 520 | /******************************************************************************/ | 
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| 521 | //Simple implementation of recording. We fill up buffers queued by the application | 
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| 522 | //until we run out of data or buffers. If we run out of buffers, the recorded data | 
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| 523 | //is thrown away. We will continue when when the applications adds more buffers. | 
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| 524 | /******************************************************************************/ | 
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| 525 | void DartWaveIn::handler(ULONG ulStatus, PMCI_MIX_BUFFER pBuffer, ULONG ulFlags) | 
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| 526 | { | 
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| 527 | ULONG    buflength, bufpos, bytestocopy; | 
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| 528 |  | 
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| 529 | dprintf2(("WINMM: DartWaveIn handler %x\n", pBuffer)); | 
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| 530 | if(ulFlags == MIX_STREAM_ERROR) { | 
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| 531 | if(ulStatus == ERROR_DEVICE_OVERRUN) { | 
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| 532 | dprintf(("WINMM: ERROR: WaveIn handler ERROR_DEVICE_OVERRUN!\n")); | 
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| 533 | if(State == STATE_RECORDING) { | 
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| 534 | fOverrun = TRUE; | 
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| 535 | stop();    //out of buffers, so stop playback | 
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| 536 | } | 
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| 537 | return; | 
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| 538 | } | 
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| 539 | dprintf(("WINMM: WaveIn handler, Unknown error %X\n", ulStatus)); | 
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| 540 | return; | 
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| 541 | } | 
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| 542 | wmutex.enter(); | 
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| 543 |  | 
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| 544 | if(wavehdr == NULL) { | 
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| 545 | wmutex.leave(); | 
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| 546 | //last buffer recorded -> no new ones -> overrun | 
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| 547 | //Windows doesn't care -> just continue | 
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| 548 | dprintf(("WINMM: WARNING: WaveIn handler OVERRUN!\n")); | 
|---|
| 549 | return; | 
|---|
| 550 | } | 
|---|
| 551 |  | 
|---|
| 552 | buflength = pBuffer->ulBufferLength; | 
|---|
| 553 | bufpos    = 0; | 
|---|
| 554 | while(buflength) { | 
|---|
| 555 | if(wavehdr) { | 
|---|
| 556 | dprintf2(("WINMM: DartWaveIn handler: bytes recorded %d, buffer length %d, room %d", buflength, wavehdr->dwBufferLength, wavehdr->dwBytesRecorded)); | 
|---|
| 557 | bytestocopy = min(buflength, wavehdr->dwBufferLength - wavehdr->dwBytesRecorded); | 
|---|
| 558 | if(bytestocopy) { | 
|---|
| 559 | memcpy(wavehdr->lpData + wavehdr->dwBytesRecorded, (char *)pBuffer->pBuffer + bufpos, bytestocopy); | 
|---|
| 560 | } | 
|---|
| 561 | else DebugInt3();   //should never happen | 
|---|
| 562 |  | 
|---|
| 563 | bufpos                   += bytestocopy; | 
|---|
| 564 | wavehdr->dwBytesRecorded += bytestocopy; | 
|---|
| 565 | buflength                -= bytestocopy; | 
|---|
| 566 |  | 
|---|
| 567 | if(wavehdr->dwBytesRecorded == wavehdr->dwBufferLength) | 
|---|
| 568 | { | 
|---|
| 569 | WAVEHDR *whdr = wavehdr; | 
|---|
| 570 |  | 
|---|
| 571 | dprintf2(("WINMM: DartWaveIn handler buf %X done\n", whdr)); | 
|---|
| 572 | whdr->dwFlags |= WHDR_DONE; | 
|---|
| 573 | whdr->dwFlags &= ~WHDR_INQUEUE; | 
|---|
| 574 |  | 
|---|
| 575 | wavehdr = whdr->lpNext; | 
|---|
| 576 | whdr->lpNext = NULL; | 
|---|
| 577 | wmutex.leave(); | 
|---|
| 578 |  | 
|---|
| 579 | callback(WIM_DATA, (ULONG)whdr, whdr->dwBytesRecorded); | 
|---|
| 580 |  | 
|---|
| 581 | wmutex.enter(); | 
|---|
| 582 | } | 
|---|
| 583 | } | 
|---|
| 584 | else break; | 
|---|
| 585 | } | 
|---|
| 586 | wmutex.leave(); | 
|---|
| 587 |  | 
|---|
| 588 | //Transfer buffer to DART | 
|---|
| 589 | // MCI_MIXSETUP_PARMS->pMixWrite does alter FS: selector! | 
|---|
| 590 | USHORT selTIB = RestoreOS2FS(); // save current FS selector | 
|---|
| 591 | MixSetupParms->pmixRead(MixSetupParms->ulMixHandle, pBuffer, 1); | 
|---|
| 592 | SetFS(selTIB);           // switch back to the saved FS selector | 
|---|
| 593 | } | 
|---|
| 594 | /******************************************************************************/ | 
|---|
| 595 | /******************************************************************************/ | 
|---|
| 596 | LONG APIENTRY WaveInHandler(ULONG ulStatus, | 
|---|
| 597 | PMCI_MIX_BUFFER pBuffer, | 
|---|
| 598 | ULONG ulFlags) | 
|---|
| 599 | { | 
|---|
| 600 | DartWaveIn *dwave; | 
|---|
| 601 |  | 
|---|
| 602 | if(pBuffer && pBuffer->ulUserParm) | 
|---|
| 603 | { | 
|---|
| 604 | dwave = (DartWaveIn *)pBuffer->ulUserParm; | 
|---|
| 605 | dwave->handler(ulStatus, pBuffer, ulFlags); | 
|---|
| 606 | } | 
|---|
| 607 | return(TRUE); | 
|---|
| 608 | } | 
|---|
| 609 | /******************************************************************************/ | 
|---|
| 610 | /******************************************************************************/ | 
|---|
| 611 |  | 
|---|