| 1 | /* $Id: waveoutbase.cpp,v 1.1 2001-03-23 16:23:45 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Wave playback class (DART)
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| 5 | *
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| 6 | * Copyright 1998-2001 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | *
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| 9 | * Project Odin Software License can be found in LICENSE.TXT
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| 10 | *
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| 11 | * Note:
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| 12 | * 2000/11/24 PH MCI_MIXSETUP_PARMS->pMixWrite does alter FS: selector!
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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 | /****************************************************************************
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| 18 | * Includes *
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| 19 | ****************************************************************************/
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| 20 |
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| 21 |
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| 22 |
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| 23 | #define INCL_BASE
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| 24 | #define INCL_OS2MM
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| 25 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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| 26 | #include <os2mewrap.h> //Odin32 OS/2 MMPM/2 api wrappers
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| 27 | #include <stdlib.h>
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| 28 | #include <string.h>
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| 29 | #define OS2_ONLY
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| 30 | #include <win32api.h>
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| 31 | #include <wprocess.h>
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| 32 |
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| 33 | #include "misc.h"
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| 34 | #include "waveoutbase.h"
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| 35 |
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| 36 | #define DBG_LOCALLOG DBG_waveoutbase
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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 | //TODO: mulaw, alaw & adpcm
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| 48 | /******************************************************************************/
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| 49 | /******************************************************************************/
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| 50 | WaveOut::WaveOut(LPWAVEFORMATEX pwfx, ULONG fdwOpen, ULONG nCallback, ULONG dwInstance)
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| 51 | : WaveInOut(pwfx, fdwOpen, nCallback, dwInstance)
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| 52 | {
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| 53 | bytesPlayed = bytesCopied = bytesReturned = 0;
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| 54 |
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| 55 | volume = defvolume;
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| 56 |
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| 57 | dprintf(("waveOutOpen: samplerate %d, numChan %d bps %d (%d), format %x", SampleRate, nChannels, BitsPerSample, pwfx->nBlockAlign, pwfx->wFormatTag));
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| 58 | }
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| 59 | /******************************************************************************/
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| 60 | /******************************************************************************/
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| 61 | WaveOut::~WaveOut()
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| 62 | {
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| 63 | }
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| 64 | /******************************************************************************/
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| 65 | /******************************************************************************/
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| 66 | int WaveOut::getNumDevices()
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| 67 | {
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| 68 | MCI_GENERIC_PARMS GenericParms;
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| 69 | MCI_AMP_OPEN_PARMS AmpOpenParms;
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| 70 | APIRET rc;
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| 71 |
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| 72 | // Setup the open structure, pass the playlist and tell MCI_OPEN to use it
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| 73 | memset(&AmpOpenParms,0,sizeof(AmpOpenParms));
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| 74 |
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| 75 | AmpOpenParms.usDeviceID = ( USHORT ) 0;
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| 76 | AmpOpenParms.pszDeviceType = ( PSZ ) MCI_DEVTYPE_AUDIO_AMPMIX;
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| 77 |
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| 78 | rc = mciSendCommand(0, MCI_OPEN,
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| 79 | MCI_WAIT | MCI_OPEN_TYPE_ID | MCI_OPEN_SHAREABLE,
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| 80 | (PVOID) &AmpOpenParms,
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| 81 | 0);
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| 82 |
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| 83 | if(rc) {
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| 84 | return 0; //no devices present
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| 85 | }
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| 86 |
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| 87 | // Generic parameters
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| 88 | GenericParms.hwndCallback = 0; //hwndFrame
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| 89 |
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| 90 | // Close the device
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| 91 | mciSendCommand(AmpOpenParms.usDeviceID, MCI_CLOSE, MCI_WAIT, (PVOID)&GenericParms, 0);
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| 92 |
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| 93 | return 1;
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| 94 | }
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| 95 | /******************************************************************************/
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| 96 | //Called if waveOutSetVolume is called by the application with waveout handle NULL
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| 97 | //Sets the default volume of each waveout stream (until it's volume is changed
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| 98 | //with an appropriate waveOutSetVolume call)
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| 99 | /******************************************************************************/
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| 100 | void WaveOut::setDefaultVolume(ULONG volume)
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| 101 | {
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| 102 | defvolume = volume;
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| 103 | }
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| 104 | /******************************************************************************/
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| 105 | /******************************************************************************/
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| 106 | ULONG WaveOut::defvolume = 0xFFFFFFFF;
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| 107 |
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