Sweden-Number/dlls/winmm/wavemap/wavemap.c

566 lines
18 KiB
C

/* -*- tab-width: 8; c-basic-offset: 4 -*- */
/*
* Wine Wave mapper driver
*
* Copyright 1999 Eric Pouech
*/
/* TODOs
* + implement wavein as waveout has been implemented
* + better protection against evilish dwUser parameters
* + use asynchronous ACM conversion
*/
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "driver.h"
#include "mmddk.h"
#include "msacm.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(msacm)
typedef struct tagWAVEMAPDATA {
struct tagWAVEMAPDATA* self;
HWAVE hWave;
HACMSTREAM hAcmStream;
/* needed data to filter callbacks. Only needed when hAcmStream is not 0 */
DWORD dwCallback;
DWORD dwClientInstance;
DWORD dwFlags;
MMRESULT (WINAPI *acmStreamOpen)(LPHACMSTREAM, HACMDRIVER, LPWAVEFORMATEX, LPWAVEFORMATEX, LPWAVEFILTER, DWORD, DWORD, DWORD);
MMRESULT (WINAPI *acmStreamClose)(HACMSTREAM, DWORD);
MMRESULT (WINAPI *acmStreamSize)(HACMSTREAM, DWORD, LPDWORD, DWORD);
MMRESULT (WINAPI *acmStreamConvert)(HACMSTREAM, PACMSTREAMHEADER, DWORD);
MMRESULT (WINAPI *acmStreamPrepareHeader)(HACMSTREAM, PACMSTREAMHEADER, DWORD);
MMRESULT (WINAPI *acmStreamUnprepareHeader)(HACMSTREAM, PACMSTREAMHEADER, DWORD);
} WAVEMAPDATA;
static BOOL WAVEMAP_IsData(WAVEMAPDATA* wm)
{
return (!IsBadReadPtr(wm, sizeof(WAVEMAPDATA)) && wm->self == wm);
}
/*======================================================================*
* WAVE OUT part *
*======================================================================*/
static void CALLBACK WAVEMAP_DstCallback(HDRVR hDev, UINT uMsg, DWORD dwInstance,
DWORD dwParam1, DWORD dwParam2)
{
WAVEMAPDATA* wom = (WAVEMAPDATA*)dwInstance;
TRACE("(0x%x %u %ld %lx %lx);\n", hDev, uMsg, dwInstance, dwParam1, dwParam2);
switch (uMsg) {
case WOM_OPEN:
case WOM_CLOSE:
/* dwParam1 & dwParam2 are supposed to be 0, nothing to do */
break;
case WOM_DONE:
{
LPWAVEHDR lpWaveHdrDst = (LPWAVEHDR)dwParam1;
PACMSTREAMHEADER ash = (PACMSTREAMHEADER)((LPSTR)lpWaveHdrDst - sizeof(ACMSTREAMHEADER));
LPWAVEHDR lpWaveHdrSrc = (LPWAVEHDR)ash->dwUser;
lpWaveHdrSrc->dwFlags &= ~WHDR_INQUEUE;
lpWaveHdrSrc->dwFlags |= WHDR_DONE;
dwParam1 = (DWORD)lpWaveHdrSrc;
}
break;
default:
ERR("Unknown msg %u\n", uMsg);
}
DriverCallback(wom->dwCallback, HIWORD(wom->dwFlags), hDev, uMsg,
wom->dwClientInstance, dwParam1, dwParam2);
}
static DWORD wodOpenHelper(WAVEMAPDATA* wom, UINT idx,
LPWAVEOPENDESC lpDesc, LPWAVEFORMATEX lpwfx,
DWORD dwFlags)
{
DWORD ret;
/* destination is always PCM, so the formulas below apply */
lpwfx->nBlockAlign = (lpwfx->nChannels * lpwfx->wBitsPerSample) / 8;
lpwfx->nAvgBytesPerSec = lpwfx->nSamplesPerSec * lpwfx->nBlockAlign;
ret = wom->acmStreamOpen(&wom->hAcmStream, 0, lpDesc->lpFormat, lpwfx, NULL, 0L, 0L,
(dwFlags & WAVE_FORMAT_QUERY) ? ACM_STREAMOPENF_QUERY : 0L);
if (ret != MMSYSERR_NOERROR)
return ret;
return waveOutOpen(&wom->hWave, idx, lpwfx, (DWORD)WAVEMAP_DstCallback,
(DWORD)wom, (dwFlags & ~CALLBACK_TYPEMASK) | CALLBACK_FUNCTION);
}
static DWORD wodOpen(LPDWORD lpdwUser, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
{
UINT nd = waveOutGetNumDevs();
UINT i;
WAVEMAPDATA* wom = HeapAlloc(GetProcessHeap(), 0, sizeof(WAVEMAPDATA));
WAVEFORMATEX wfx;
TRACE("(%p %p %08lx\n", lpdwUser, lpDesc, dwFlags);
if (!wom)
return MMSYSERR_NOMEM;
wom->self = wom;
for (i = 0; i < nd; i++) {
/* if no ACM stuff is involved, no need to handle callbacks at this
* level, this will be done transparently
*/
if (waveOutOpen(&wom->hWave, i, lpDesc->lpFormat, lpDesc->dwCallback,
lpDesc->dwInstance, dwFlags) == MMSYSERR_NOERROR) {
wom->hAcmStream = 0;
goto found;
}
}
/* temporary hack until real builtin dll loading is available */
do {
HMODULE hModule = LoadLibraryA("msacm32.dll");
wom->acmStreamOpen = (void*)GetProcAddress(hModule, "acmStreamOpen");
wom->acmStreamClose = (void*)GetProcAddress(hModule, "acmStreamClose");
wom->acmStreamSize = (void*)GetProcAddress(hModule, "acmStreamSize");
wom->acmStreamConvert = (void*)GetProcAddress(hModule, "acmStreamConvert");
wom->acmStreamPrepareHeader = (void*)GetProcAddress(hModule, "acmStreamPrepareHeader");
wom->acmStreamUnprepareHeader = (void*)GetProcAddress(hModule, "acmStreamUnprepareHeader");
} while (0);
wfx.wFormatTag = WAVE_FORMAT_PCM;
wfx.cbSize = 0; /* normally, this field is not used for PCM format, just in case */
/* try some ACM stuff */
wom->dwCallback = lpDesc->dwCallback;
wom->dwFlags = dwFlags;
wom->dwClientInstance = lpDesc->dwInstance;
#define TRY(sps,bps) wfx.nSamplesPerSec = (sps); wfx.wBitsPerSample = (bps); \
if (wodOpenHelper(wom, i, lpDesc, &wfx, dwFlags) == MMSYSERR_NOERROR) goto found;
for (i = 0; i < nd; i++) {
/* first try with same stereo/mono option as source */
wfx.nChannels = lpDesc->lpFormat->nChannels;
TRY(44100, 8);
TRY(22050, 8);
TRY(11025, 8);
/* 2^3 => 1, 1^3 => 2, so if stereo, try mono (and the other way around) */
wfx.nChannels ^= 3;
TRY(44100, 8);
TRY(22050, 8);
TRY(11025, 8);
}
#undef TRY
HeapFree(GetProcessHeap(), 0, wom);
return MMSYSERR_ALLOCATED;
found:
if (dwFlags & WAVE_FORMAT_QUERY) {
lpDesc->hWave = 0;
*lpdwUser = 0L;
HeapFree(GetProcessHeap(), 0, wom);
} else {
lpDesc->hWave = wom->hWave;
*lpdwUser = (DWORD)wom;
}
return MMSYSERR_NOERROR;
}
static DWORD wodClose(WAVEMAPDATA* wom)
{
DWORD ret = waveOutClose(wom->hWave);
if (ret == MMSYSERR_NOERROR) {
if (wom->hAcmStream) {
ret = wom->acmStreamClose(wom->hAcmStream, 0);
}
if (ret == MMSYSERR_NOERROR) {
HeapFree(GetProcessHeap(), 0, wom);
}
}
return ret;
}
static DWORD wodWrite(WAVEMAPDATA* wom, LPWAVEHDR lpWaveHdrSrc, DWORD dwParam2)
{
PACMSTREAMHEADER ash;
LPWAVEHDR lpWaveHdrDst;
if (!wom->hAcmStream) {
return waveOutWrite(wom->hWave, lpWaveHdrSrc, dwParam2);
}
lpWaveHdrSrc->dwFlags |= WHDR_INQUEUE;
ash = (PACMSTREAMHEADER)lpWaveHdrSrc->reserved;
if (wom->acmStreamConvert(wom->hAcmStream, ash, 0L) != MMSYSERR_NOERROR)
return MMSYSERR_ERROR;
lpWaveHdrDst = (LPWAVEHDR)((LPSTR)ash + sizeof(ACMSTREAMHEADER));
lpWaveHdrDst->dwBufferLength = ash->cbDstLengthUsed;
return waveOutWrite(wom->hWave, lpWaveHdrDst, sizeof(*lpWaveHdrDst));
}
static DWORD wodPrepare(WAVEMAPDATA* wom, LPWAVEHDR lpWaveHdrSrc, DWORD dwParam2)
{
PACMSTREAMHEADER ash;
DWORD size;
DWORD dwRet;
LPWAVEHDR lpWaveHdrDst;
if (!wom->hAcmStream) {
return waveOutPrepareHeader(wom->hWave, lpWaveHdrSrc, dwParam2);
}
if (wom->acmStreamSize(wom->hAcmStream, lpWaveHdrSrc->dwBufferLength, &size, ACM_STREAMSIZEF_SOURCE) != MMSYSERR_NOERROR)
return MMSYSERR_ERROR;
ash = HeapAlloc(GetProcessHeap(), 0, sizeof(ACMSTREAMHEADER) + sizeof(WAVEHDR) + size);
if (ash == NULL)
return MMSYSERR_NOMEM;
ash->cbStruct = sizeof(*ash);
ash->fdwStatus = 0L;
ash->dwUser = (DWORD)lpWaveHdrSrc;
ash->pbSrc = lpWaveHdrSrc->lpData;
ash->cbSrcLength = lpWaveHdrSrc->dwBufferLength;
/* ash->cbSrcLengthUsed */
ash->dwSrcUser = lpWaveHdrSrc->dwUser; /* FIXME ? */
ash->pbDst = (LPSTR)ash + sizeof(ACMSTREAMHEADER) + sizeof(WAVEHDR);
ash->cbDstLength = size;
/* ash->cbDstLengthUsed */
ash->dwDstUser = 0; /* FIXME ? */
dwRet = wom->acmStreamPrepareHeader(wom->hAcmStream, ash, 0L);
if (dwRet != MMSYSERR_NOERROR)
goto errCleanUp;
lpWaveHdrDst = (LPWAVEHDR)((LPSTR)ash + sizeof(ACMSTREAMHEADER));
lpWaveHdrDst->lpData = ash->pbDst;
lpWaveHdrDst->dwBufferLength = size; /* conversion is not done yet */
lpWaveHdrDst->dwFlags = 0;
lpWaveHdrDst->dwLoops = 0;
dwRet = waveOutPrepareHeader(wom->hWave, lpWaveHdrDst, sizeof(*lpWaveHdrDst));
if (dwRet != MMSYSERR_NOERROR)
goto errCleanUp;
lpWaveHdrSrc->reserved = (DWORD)ash;
lpWaveHdrSrc->dwFlags = WHDR_PREPARED;
TRACE("=> (0)\n");
return MMSYSERR_NOERROR;
errCleanUp:
TRACE("=> (%ld)\n", dwRet);
HeapFree(GetProcessHeap(), 0, ash);
return dwRet;
}
static DWORD wodUnprepare(WAVEMAPDATA* wom, LPWAVEHDR lpWaveHdrSrc, DWORD dwParam2)
{
PACMSTREAMHEADER ash;
LPWAVEHDR lpWaveHdrDst;
DWORD dwRet1, dwRet2;
if (!wom->hAcmStream) {
return waveOutUnprepareHeader(wom->hWave, lpWaveHdrSrc, dwParam2);
}
ash = (PACMSTREAMHEADER)lpWaveHdrSrc->reserved;
dwRet1 = wom->acmStreamUnprepareHeader(wom->hAcmStream, ash, 0L);
lpWaveHdrDst = (LPWAVEHDR)((LPSTR)ash + sizeof(ACMSTREAMHEADER));
dwRet2 = waveOutUnprepareHeader(wom->hWave, lpWaveHdrDst, sizeof(*lpWaveHdrDst));
HeapFree(GetProcessHeap(), 0, ash);
lpWaveHdrSrc->dwFlags &= ~WHDR_PREPARED;
return (dwRet1 == MMSYSERR_NOERROR) ? dwRet2 : dwRet1;
}
static DWORD wodGetPosition(WAVEMAPDATA* wom, LPMMTIME lpTime, DWORD dwParam2)
{
return waveOutGetPosition(wom->hWave, lpTime, dwParam2);
}
static DWORD wodGetDevCaps(UINT wDevID, WAVEMAPDATA* wom, LPWAVEOUTCAPSA lpWaveCaps, DWORD dwParam2)
{
/* if opened low driver, forward message */
if (WAVEMAP_IsData(wom))
return waveOutGetDevCapsA(wom->hWave, lpWaveCaps, dwParam2);
/* otherwise, return caps of mapper itself */
if (wDevID == (UINT)-1 || wDevID == (UINT16)-1) {
lpWaveCaps->wMid = 0x00FF;
lpWaveCaps->wPid = 0x0001;
lpWaveCaps->vDriverVersion = 0x0100;
strcpy(lpWaveCaps->szPname, "Wine wave out mapper");
lpWaveCaps->dwFormats =
WAVE_FORMAT_4M08 | WAVE_FORMAT_4S08 | WAVE_FORMAT_4M16 | WAVE_FORMAT_4S16 |
WAVE_FORMAT_2M08 | WAVE_FORMAT_2S08 | WAVE_FORMAT_2M16 | WAVE_FORMAT_2S16 |
WAVE_FORMAT_1M08 | WAVE_FORMAT_1S08 | WAVE_FORMAT_1M16 | WAVE_FORMAT_1S16;
lpWaveCaps->wChannels = 2;
lpWaveCaps->dwSupport = WAVECAPS_VOLUME | WAVECAPS_LRVOLUME;
return MMSYSERR_NOERROR;
}
ERR("This shouldn't happen\n");
return MMSYSERR_ERROR;
}
static DWORD wodGetVolume(UINT wDevID, WAVEMAPDATA* wom, LPDWORD lpVol)
{
if (WAVEMAP_IsData(wom))
return waveOutGetVolume(wom->hWave, lpVol);
return MMSYSERR_NOERROR;
}
static DWORD wodSetVolume(UINT wDevID, WAVEMAPDATA* wom, DWORD vol)
{
if (WAVEMAP_IsData(wom))
return waveOutSetVolume(wom->hWave, vol);
return MMSYSERR_NOERROR;
}
static DWORD wodPause(WAVEMAPDATA* wom)
{
return waveOutPause(wom->hWave);
}
static DWORD wodRestart(WAVEMAPDATA* wom)
{
return waveOutRestart(wom->hWave);
}
static DWORD wodReset(WAVEMAPDATA* wom)
{
return waveOutReset(wom->hWave);
}
static DWORD wodBreakLoop(WAVEMAPDATA* wom)
{
return waveOutBreakLoop(wom->hWave);
}
/**************************************************************************
* WAVEMAP_wodMessage [sample driver]
*/
DWORD WINAPI WAVEMAP_wodMessage(UINT wDevID, UINT wMsg, DWORD dwUser,
DWORD dwParam1, DWORD dwParam2)
{
TRACE("(%u, %04X, %08lX, %08lX, %08lX);\n",
wDevID, wMsg, dwUser, dwParam1, dwParam2);
switch (wMsg) {
case DRVM_INIT:
case DRVM_EXIT:
case DRVM_ENABLE:
case DRVM_DISABLE:
/* FIXME: Pretend this is supported */
return 0;
case WODM_OPEN: return wodOpen ((LPDWORD)dwUser, (LPWAVEOPENDESC)dwParam1,dwParam2);
case WODM_CLOSE: return wodClose ((WAVEMAPDATA*)dwUser);
case WODM_WRITE: return wodWrite ((WAVEMAPDATA*)dwUser, (LPWAVEHDR)dwParam1, dwParam2);
case WODM_PAUSE: return wodPause ((WAVEMAPDATA*)dwUser);
case WODM_GETPOS: return wodGetPosition ((WAVEMAPDATA*)dwUser, (LPMMTIME)dwParam1, dwParam2);
case WODM_BREAKLOOP: return wodBreakLoop ((WAVEMAPDATA*)dwUser);
case WODM_PREPARE: return wodPrepare ((WAVEMAPDATA*)dwUser, (LPWAVEHDR)dwParam1, dwParam2);
case WODM_UNPREPARE: return wodUnprepare ((WAVEMAPDATA*)dwUser, (LPWAVEHDR)dwParam1, dwParam2);
case WODM_GETDEVCAPS: return wodGetDevCaps (wDevID, (WAVEMAPDATA*)dwUser, (LPWAVEOUTCAPSA)dwParam1,dwParam2);
case WODM_GETNUMDEVS: return 1;
case WODM_GETPITCH: return MMSYSERR_NOTSUPPORTED;
case WODM_SETPITCH: return MMSYSERR_NOTSUPPORTED;
case WODM_GETPLAYBACKRATE: return MMSYSERR_NOTSUPPORTED;
case WODM_SETPLAYBACKRATE: return MMSYSERR_NOTSUPPORTED;
case WODM_GETVOLUME: return wodGetVolume (wDevID, (WAVEMAPDATA*)dwUser, (LPDWORD)dwParam1);
case WODM_SETVOLUME: return wodSetVolume (wDevID, (WAVEMAPDATA*)dwUser, dwParam1);
case WODM_RESTART: return wodRestart ((WAVEMAPDATA*)dwUser);
case WODM_RESET: return wodReset ((WAVEMAPDATA*)dwUser);
default:
FIXME("unknown message %d!\n", wMsg);
}
return MMSYSERR_NOTSUPPORTED;
}
/*======================================================================*
* WAVE IN part *
*======================================================================*/
static DWORD widOpen(LPDWORD lpdwUser, LPWAVEOPENDESC lpDesc, DWORD dwFlags)
{
UINT nd = waveInGetNumDevs();
UINT i;
WAVEMAPDATA* wim = HeapAlloc(GetProcessHeap(), 0, sizeof(WAVEMAPDATA));
TRACE("(%p %p %08lx\n", lpdwUser, lpDesc, dwFlags);
wim->self = wim;
for (i = 0; i < nd; i++) {
if (waveInOpen(&wim->hWave, i, lpDesc->lpFormat, lpDesc->dwCallback,
lpDesc->dwInstance, dwFlags) == MMSYSERR_NOERROR) {
lpDesc->hWave = wim->hWave;
*lpdwUser = (DWORD)wim;
return MMSYSERR_NOERROR;
}
}
HeapFree(GetProcessHeap(), 0, wim);
return MMSYSERR_ALLOCATED;
}
static DWORD widClose(WAVEMAPDATA* wim)
{
DWORD ret = waveInClose(wim->hWave);
if (ret == MMSYSERR_NOERROR)
HeapFree(GetProcessHeap(), 0, wim);
return ret;
}
static DWORD widAddBuffer(WAVEMAPDATA* wim, LPWAVEHDR lpWaveHdr, DWORD dwParam2)
{
return waveInAddBuffer(wim->hWave, lpWaveHdr, dwParam2);
}
static DWORD widPrepare(WAVEMAPDATA* wim, LPWAVEHDR lpWaveHdr, DWORD dwParam2)
{
return waveInPrepareHeader(wim->hWave, lpWaveHdr, dwParam2);
}
static DWORD widUnprepare(WAVEMAPDATA* wim, LPWAVEHDR lpWaveHdr, DWORD dwParam2)
{
return waveInUnprepareHeader(wim->hWave, lpWaveHdr, dwParam2);
}
static DWORD widGetPosition(WAVEMAPDATA* wim, LPMMTIME lpTime, DWORD dwParam2)
{
return waveInGetPosition(wim->hWave, lpTime, dwParam2);
}
static DWORD widGetDevCaps(UINT wDevID, WAVEMAPDATA* wim, LPWAVEINCAPSA lpWaveCaps, DWORD dwParam2)
{
/* if opened low driver, forward message */
if (WAVEMAP_IsData(wim))
return waveInGetDevCapsA(wim->hWave, lpWaveCaps, dwParam2);
/* otherwise, return caps of mapper itself */
if (wDevID == (UINT)-1 || wDevID == (UINT16)-1) {
lpWaveCaps->wMid = 0x00FF;
lpWaveCaps->wPid = 0x0001;
lpWaveCaps->vDriverVersion = 0x0001;
strcpy(lpWaveCaps->szPname, "Wine wave in mapper");
lpWaveCaps->dwFormats =
WAVE_FORMAT_4M08 | WAVE_FORMAT_4S08 | WAVE_FORMAT_4M16 | WAVE_FORMAT_4S16 |
WAVE_FORMAT_2M08 | WAVE_FORMAT_2S08 | WAVE_FORMAT_2M16 | WAVE_FORMAT_2S16 |
WAVE_FORMAT_1M08 | WAVE_FORMAT_1S08 | WAVE_FORMAT_1M16 | WAVE_FORMAT_1S16;
lpWaveCaps->wChannels = 2;
return MMSYSERR_NOERROR;
}
ERR("This shouldn't happen\n");
return MMSYSERR_ERROR;
}
static DWORD widStop(WAVEMAPDATA* wim)
{
return waveInStop(wim->hWave);
}
static DWORD widStart(WAVEMAPDATA* wim)
{
return waveInStart(wim->hWave);
}
static DWORD widReset(WAVEMAPDATA* wim)
{
return waveInReset(wim->hWave);
}
/**************************************************************************
* WAVEMAP_widMessage [sample driver]
*/
DWORD WINAPI WAVEMAP_widMessage(WORD wDevID, WORD wMsg, DWORD dwUser,
DWORD dwParam1, DWORD dwParam2)
{
TRACE("(%u, %04X, %08lX, %08lX, %08lX);\n",
wDevID, wMsg, dwUser, dwParam1, dwParam2);
switch (wMsg) {
case DRVM_INIT:
case DRVM_EXIT:
case DRVM_ENABLE:
case DRVM_DISABLE:
/* FIXME: Pretend this is supported */
return 0;
case WIDM_OPEN: return widOpen ((LPDWORD)dwUser, (LPWAVEOPENDESC)dwParam1, dwParam2);
case WIDM_CLOSE: return widClose ((WAVEMAPDATA*)dwUser);
case WIDM_ADDBUFFER: return widAddBuffer ((WAVEMAPDATA*)dwUser, (LPWAVEHDR)dwParam1, dwParam2);
case WIDM_PREPARE: return widPrepare ((WAVEMAPDATA*)dwUser, (LPWAVEHDR)dwParam1, dwParam2);
case WIDM_UNPREPARE: return widUnprepare ((WAVEMAPDATA*)dwUser, (LPWAVEHDR)dwParam1, dwParam2);
case WIDM_GETDEVCAPS: return widGetDevCaps (wDevID, (WAVEMAPDATA*)dwUser, (LPWAVEINCAPSA)dwParam1, dwParam2);
case WIDM_GETNUMDEVS: return 1;
case WIDM_GETPOS: return widGetPosition ((WAVEMAPDATA*)dwUser, (LPMMTIME)dwParam1, dwParam2);
case WIDM_RESET: return widReset ((WAVEMAPDATA*)dwUser);
case WIDM_START: return widStart ((WAVEMAPDATA*)dwUser);
case WIDM_STOP: return widStop ((WAVEMAPDATA*)dwUser);
default:
FIXME("unknown message %u!\n", wMsg);
}
return MMSYSERR_NOTSUPPORTED;
}
/*======================================================================*
* Driver part *
*======================================================================*/
static struct WINE_WAVEMAP* oss = NULL;
/**************************************************************************
* WAVEMAP_drvOpen [internal]
*/
static DWORD WAVEMAP_drvOpen(LPSTR str)
{
if (oss)
return 0;
/* I know, this is ugly, but who cares... */
oss = (struct WINE_WAVEMAP*)1;
return 1;
}
/**************************************************************************
* WAVEMAP_drvClose [internal]
*/
static DWORD WAVEMAP_drvClose(DWORD dwDevID)
{
if (oss) {
oss = NULL;
return 1;
}
return 0;
}
/**************************************************************************
* WAVEMAP_DriverProc [internal]
*/
LONG CALLBACK WAVEMAP_DriverProc(DWORD dwDevID, HDRVR hDriv, DWORD wMsg,
DWORD dwParam1, DWORD dwParam2)
{
/* EPP TRACE("(%08lX, %04X, %08lX, %08lX, %08lX)\n", */
/* EPP dwDevID, hDriv, wMsg, dwParam1, dwParam2); */
switch(wMsg) {
case DRV_LOAD: return 1;
case DRV_FREE: return 1;
case DRV_OPEN: return WAVEMAP_drvOpen((LPSTR)dwParam1);
case DRV_CLOSE: return WAVEMAP_drvClose(dwDevID);
case DRV_ENABLE: return 1;
case DRV_DISABLE: return 1;
case DRV_QUERYCONFIGURE: return 1;
case DRV_CONFIGURE: MessageBoxA(0, "WAVEMAP MultiMedia Driver !", "OSS Driver", MB_OK); return 1;
case DRV_INSTALL: return DRVCNF_RESTART;
case DRV_REMOVE: return DRVCNF_RESTART;
default:
return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
}
}