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mpv/loader/afl.c

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/**************************************************************************
This file will contain an interface to ACM drivers.
Its content will be based mainly on wine/dlls/msacm32
actually, for audio decompression only the following functions
are needed:
acmStreamOpen ( takes formats of src and dest, returns stream handle )
acmStreamPrepareHeader ( takes stream handler and info on data )
acmStreamConvert ( the same as PrepareHeader )
acmStreamUnprepareHeader
acmStreamClose
acmStreamSize
maybe acmStreamReset
In future I'll also add functions for format enumeration,
but not right now.
***************************************************************************/
#include "config.h"
#include "wine/winbase.h"
#include "wine/windef.h"
#include "wine/winuser.h"
#include "wine/vfw.h"
#include "wine/winestring.h"
#include "wine/driver.h"
#include "wine/winerror.h"
#include "wine/msacm.h"
#include "wine/msacmdrv.h"
#include "wineacm.h"
#include "ext.h"
#include "driver.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#pragma pack(1)
#define OpenDriverA DrvOpen
#define CloseDriver DrvClose
static inline PWINE_ACMSTREAM ACM_GetStream(HACMSTREAM has)
{
return (PWINE_ACMSTREAM)has;
}
/***********************************************************************
* acmDriverAddA (MSACM32.2)
*/
MMRESULT WINAPI acmDriverAddA(PHACMDRIVERID phadid, HINSTANCE hinstModule,
LPARAM lParam, DWORD dwPriority, DWORD fdwAdd)
{
if (!phadid)
return MMSYSERR_INVALPARAM;
/* Check if any unknown flags */
if (fdwAdd &
~(ACM_DRIVERADDF_FUNCTION|ACM_DRIVERADDF_NOTIFYHWND|
ACM_DRIVERADDF_GLOBAL))
return MMSYSERR_INVALFLAG;
/* Check if any incompatible flags */
if ((fdwAdd & ACM_DRIVERADDF_FUNCTION) &&
(fdwAdd & ACM_DRIVERADDF_NOTIFYHWND))
return MMSYSERR_INVALFLAG;
/* FIXME: in fact, should GetModuleFileName(hinstModule) and do a
* LoadDriver on it, to be sure we can call SendDriverMessage on the
* hDrvr handle.
*/
*phadid = (HACMDRIVERID) MSACM_RegisterDriver(NULL, 0, hinstModule);
/* FIXME: lParam, dwPriority and fdwAdd ignored */
return MMSYSERR_NOERROR;
}
/***********************************************************************
* acmDriverClose (MSACM32.4)
*/
MMRESULT WINAPI acmDriverClose(HACMDRIVER had, DWORD fdwClose)
{
PWINE_ACMDRIVER p;
PWINE_ACMDRIVER* tp;
if (fdwClose)
return MMSYSERR_INVALFLAG;
p = MSACM_GetDriver(had);
if (!p)
return MMSYSERR_INVALHANDLE;
for (tp = &(p->obj.pACMDriverID->pACMDriverList); *tp; *tp = (*tp)->pNextACMDriver) {
if (*tp == p) {
*tp = (*tp)->pNextACMDriver;
break;
}
}
if (p->hDrvr && !p->obj.pACMDriverID->pACMDriverList)
CloseDriver(p->hDrvr);
HeapFree(MSACM_hHeap, 0, p);
return MMSYSERR_NOERROR;
}
/***********************************************************************
* acmDriverEnum (MSACM32.7)
*/
MMRESULT WINAPI acmDriverEnum(ACMDRIVERENUMCB fnCallback, DWORD dwInstance, DWORD fdwEnum)
{
PWINE_ACMDRIVERID p;
DWORD fdwSupport;
if (!fnCallback) {
return MMSYSERR_INVALPARAM;
}
if (fdwEnum && ~(ACM_DRIVERENUMF_NOLOCAL|ACM_DRIVERENUMF_DISABLED)) {
return MMSYSERR_INVALFLAG;
}
for (p = MSACM_pFirstACMDriverID; p; p = p->pNextACMDriverID) {
fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
if (!p->bEnabled) {
if (fdwEnum & ACM_DRIVERENUMF_DISABLED)
fdwSupport |= ACMDRIVERDETAILS_SUPPORTF_DISABLED;
else
continue;
}
(*fnCallback)((HACMDRIVERID) p, dwInstance, fdwSupport);
}
return MMSYSERR_NOERROR;
}
/***********************************************************************
* acmDriverID (MSACM32.8)
*/
MMRESULT WINAPI acmDriverID(HACMOBJ hao, PHACMDRIVERID phadid, DWORD fdwDriverID)
{
PWINE_ACMOBJ pao;
pao = MSACM_GetObj(hao);
if (!pao)
return MMSYSERR_INVALHANDLE;
if (!phadid)
return MMSYSERR_INVALPARAM;
if (fdwDriverID)
return MMSYSERR_INVALFLAG;
*phadid = (HACMDRIVERID) pao->pACMDriverID;
return MMSYSERR_NOERROR;
}
/***********************************************************************
* acmDriverMessage (MSACM32.9)
* FIXME
* Not implemented
*/
LRESULT WINAPI acmDriverMessage(HACMDRIVER had, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
{
PWINE_ACMDRIVER pad = MSACM_GetDriver(had);
if (!pad)
return MMSYSERR_INVALPARAM;
/* FIXME: Check if uMsg legal */
if (!SendDriverMessage(pad->hDrvr, uMsg, lParam1, lParam2))
return MMSYSERR_NOTSUPPORTED;
return MMSYSERR_NOERROR;
}
/***********************************************************************
* acmDriverOpen (MSACM32.10)
*/
MMRESULT WINAPI acmDriverOpen(PHACMDRIVER phad, HACMDRIVERID hadid, DWORD fdwOpen)
{
PWINE_ACMDRIVERID padid;
PWINE_ACMDRIVER pad;
ICOPEN icopen;
HDRVR hdrv;
TRACE("(%p, %x, %08lu)\n", phad, hadid, fdwOpen);
if (!phad)
return MMSYSERR_INVALPARAM;
padid = MSACM_GetDriverID(hadid);
if (!padid)
return MMSYSERR_INVALHANDLE;
if (fdwOpen)
return MMSYSERR_INVALFLAG;
pad = (PWINE_ACMDRIVER) HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMDRIVER));
if (!pad)
return MMSYSERR_NOMEM;
pad->obj.pACMDriverID = padid;
icopen.fccType = mmioFOURCC('a', 'u', 'd', 'c');
icopen.fccHandler = (long)padid->pszFileName;
icopen.dwSize = sizeof(ICOPEN);
icopen.dwFlags = 0;
icopen.pV1Reserved = padid->pszFileName;
if (!padid->hInstModule)
pad->hDrvr = OpenDriverA((long)&icopen);
else
pad->hDrvr = padid->hInstModule;
if (!pad->hDrvr) {
HeapFree(MSACM_hHeap, 0, pad);
return MMSYSERR_ERROR;
}
pad->pfnDriverProc = GetProcAddress(pad->hDrvr, "DriverProc");
/* insert new pad at beg of list */
pad->pNextACMDriver = padid->pACMDriverList;
padid->pACMDriverList = pad;
/* FIXME: Create a WINE_ACMDRIVER32 */
*phad = (HACMDRIVER)pad;
return MMSYSERR_NOERROR;
}
/***********************************************************************
* acmDriverRemove (MSACM32.12)
*/
MMRESULT WINAPI acmDriverRemove(HACMDRIVERID hadid, DWORD fdwRemove)
{
PWINE_ACMDRIVERID padid;
padid = MSACM_GetDriverID(hadid);
if (!padid)
return MMSYSERR_INVALHANDLE;
if (fdwRemove)
return MMSYSERR_INVALFLAG;
MSACM_UnregisterDriver(padid);
return MMSYSERR_NOERROR;
}
/**********************************************************************/
HANDLE MSACM_hHeap = (HANDLE) NULL;
PWINE_ACMDRIVERID MSACM_pFirstACMDriverID = NULL;
PWINE_ACMDRIVERID MSACM_pLastACMDriverID = NULL;
/***********************************************************************
* MSACM_RegisterDriver32()
*/
PWINE_ACMDRIVERID MSACM_RegisterDriver(const char* pszFileName,
WORD wFormatTag,
HINSTANCE hinstModule)
{
PWINE_ACMDRIVERID padid;
TRACE("('%s', '%x', 0x%08x)\n", pszFileName, wFormatTag, hinstModule);
#ifndef WIN32_LOADER
MSACM_hHeap = GetProcessHeap();
#endif
padid = (PWINE_ACMDRIVERID) HeapAlloc(MSACM_hHeap, 0, sizeof(WINE_ACMDRIVERID));
padid->pszFileName = (char*)malloc(strlen(pszFileName)+1);
strcpy(padid->pszFileName, pszFileName);
// 1~strdup(pszDriverAlias);
padid->wFormatTag = wFormatTag;
padid->hInstModule = hinstModule;
padid->bEnabled = TRUE;
padid->pACMDriverList = NULL;
padid->pNextACMDriverID = NULL;
padid->pPrevACMDriverID = MSACM_pLastACMDriverID;
if (MSACM_pLastACMDriverID)
MSACM_pLastACMDriverID->pNextACMDriverID = padid;
MSACM_pLastACMDriverID = padid;
if (!MSACM_pFirstACMDriverID)
MSACM_pFirstACMDriverID = padid;
return padid;
}
/***********************************************************************
* MSACM_UnregisterDriver32()
*/
PWINE_ACMDRIVERID MSACM_UnregisterDriver(PWINE_ACMDRIVERID p)
{
PWINE_ACMDRIVERID pNextACMDriverID;
while (p->pACMDriverList)
acmDriverClose((HACMDRIVER) p->pACMDriverList, 0);
if (p->pszFileName)
free(p->pszFileName);
if (p == MSACM_pFirstACMDriverID)
MSACM_pFirstACMDriverID = p->pNextACMDriverID;
if (p == MSACM_pLastACMDriverID)
MSACM_pLastACMDriverID = p->pPrevACMDriverID;
if (p->pPrevACMDriverID)
p->pPrevACMDriverID->pNextACMDriverID = p->pNextACMDriverID;
if (p->pNextACMDriverID)
p->pNextACMDriverID->pPrevACMDriverID = p->pPrevACMDriverID;
pNextACMDriverID = p->pNextACMDriverID;
HeapFree(MSACM_hHeap, 0, p);
return pNextACMDriverID;
}
/***********************************************************************
* MSACM_UnregisterAllDrivers32()
* FIXME
* Where should this function be called?
*/
void MSACM_UnregisterAllDrivers(void)
{
PWINE_ACMDRIVERID p;
for (p = MSACM_pFirstACMDriverID; p; p = MSACM_UnregisterDriver(p));
}
/***********************************************************************
* MSACM_GetDriverID32()
*/
PWINE_ACMDRIVERID MSACM_GetDriverID(HACMDRIVERID hDriverID)
{
return (PWINE_ACMDRIVERID)hDriverID;
}
/***********************************************************************
* MSACM_GetDriver32()
*/
PWINE_ACMDRIVER MSACM_GetDriver(HACMDRIVER hDriver)
{
return (PWINE_ACMDRIVER)hDriver;
}
/***********************************************************************
* MSACM_GetObj32()
*/
PWINE_ACMOBJ MSACM_GetObj(HACMOBJ hObj)
{
return (PWINE_ACMOBJ)hObj;
}
/***********************************************************************
* acmStreamOpen (MSACM32.40)
*/
MMRESULT WINAPI acmStreamOpen(PHACMSTREAM phas, HACMDRIVER had, PWAVEFORMATEX pwfxSrc,
PWAVEFORMATEX pwfxDst, PWAVEFILTER pwfltr, DWORD dwCallback,
DWORD dwInstance, DWORD fdwOpen)
{
PWINE_ACMSTREAM was;
PWINE_ACMDRIVER wad;
MMRESULT ret;
int wfxSrcSize;
int wfxDstSize;
TRACE("(%p, 0x%08x, %p, %p, %p, %ld, %ld, %ld)\n",
phas, had, pwfxSrc, pwfxDst, pwfltr, dwCallback, dwInstance, fdwOpen);
TRACE("src [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
pwfxSrc->wFormatTag, pwfxSrc->nChannels, pwfxSrc->nSamplesPerSec, pwfxSrc->nAvgBytesPerSec,
pwfxSrc->nBlockAlign, pwfxSrc->wBitsPerSample, pwfxSrc->cbSize);
TRACE("dst [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
pwfxDst->wFormatTag, pwfxDst->nChannels, pwfxDst->nSamplesPerSec, pwfxDst->nAvgBytesPerSec,
pwfxDst->nBlockAlign, pwfxDst->wBitsPerSample, pwfxDst->cbSize);
#define SIZEOF_WFX(wfx) (sizeof(WAVEFORMATEX) + ((wfx->wFormatTag == WAVE_FORMAT_PCM) ? 0 : wfx->cbSize))
wfxSrcSize = SIZEOF_WFX(pwfxSrc);
wfxDstSize = SIZEOF_WFX(pwfxDst);
#undef SIZEOF_WFX
was = (PWINE_ACMSTREAM) HeapAlloc(MSACM_hHeap, 0, sizeof(*was) + wfxSrcSize + wfxDstSize + ((pwfltr) ? sizeof(WAVEFILTER) : 0));
if (was == NULL)
return MMSYSERR_NOMEM;
was->drvInst.cbStruct = sizeof(was->drvInst);
was->drvInst.pwfxSrc = (PWAVEFORMATEX)((LPSTR)was + sizeof(*was));
memcpy(was->drvInst.pwfxSrc, pwfxSrc, wfxSrcSize);
// LHACM is checking for 0x1
// but if this will not help
// was->drvInst.pwfxSrc->wFormatTag = 1;
was->drvInst.pwfxDst = (PWAVEFORMATEX)((LPSTR)was + sizeof(*was) + wfxSrcSize);
memcpy(was->drvInst.pwfxDst, pwfxDst, wfxDstSize);
if (pwfltr) {
was->drvInst.pwfltr = (PWAVEFILTER)((LPSTR)was + sizeof(*was) + wfxSrcSize + wfxDstSize);
memcpy(was->drvInst.pwfltr, pwfltr, sizeof(WAVEFILTER));
} else {
was->drvInst.pwfltr = NULL;
}
was->drvInst.dwCallback = dwCallback;
was->drvInst.dwInstance = dwInstance;
was->drvInst.fdwOpen = fdwOpen;
was->drvInst.fdwDriver = 0L;
was->drvInst.dwDriver = 0L;
was->drvInst.has = (HACMSTREAM)was;
if (had) {
if (!(wad = MSACM_GetDriver(had))) {
ret = MMSYSERR_INVALPARAM;
goto errCleanUp;
}
was->obj.pACMDriverID = wad->obj.pACMDriverID;
was->pDrv = wad;
was->hAcmDriver = 0; /* not to close it in acmStreamClose */
ret = SendDriverMessage(wad->hDrvr, ACMDM_STREAM_OPEN, (DWORD)&was->drvInst, 0L);
if (ret != MMSYSERR_NOERROR)
goto errCleanUp;
} else {
PWINE_ACMDRIVERID wadi;
short drv_tag;
ret = ACMERR_NOTPOSSIBLE;
/* if(pwfxSrc->wFormatTag==1)//compression
drv_tag=pwfxDst->wFormatTag;
else
if(pwfxDst->wFormatTag==1)//decompression
drv_tag=pwfxSrc->wFormatTag;
else
goto errCleanUp;
ret=acmDriverOpen2(drv_tag);
if (ret == MMSYSERR_NOERROR) {
if ((wad = MSACM_GetDriver(had)) != 0) {
was->obj.pACMDriverID = wad->obj.pACMDriverID;
was->pDrv = wad;
was->hAcmDriver = had;
ret = SendDriverMessage(wad->hDrvr, ACMDM_STREAM_OPEN, (DWORD)&was->drvInst, 0L);
if (ret == MMSYSERR_NOERROR) {
if (fdwOpen & ACM_STREAMOPENF_QUERY) {
acmDriverClose(had, 0L);
}
break;
}
}
acmDriverClose(had, 0L);*/
//if(MSACM_pFirstACMDriverID==NULL)
// MSACM_RegisterAllDrivers();
for (wadi = MSACM_pFirstACMDriverID; wadi; wadi = wadi->pNextACMDriverID)
{
/* Check Format */
if ((int)wadi->wFormatTag != (int)pwfxSrc->wFormatTag) continue;
ret = acmDriverOpen(&had, (HACMDRIVERID)wadi, 0L);
if (ret == MMSYSERR_NOERROR) {
if ((wad = MSACM_GetDriver(had)) != 0) {
was->obj.pACMDriverID = wad->obj.pACMDriverID;
was->pDrv = wad;
was->hAcmDriver = had;
ret = SendDriverMessage(wad->hDrvr, ACMDM_STREAM_OPEN, (DWORD)&was->drvInst, 0L);
//lhacm - crash printf("RETOPEN %d\n", ret);
//ret = 0;
if (ret == MMSYSERR_NOERROR) {
if (fdwOpen & ACM_STREAMOPENF_QUERY) {
acmDriverClose(had, 0L);
}
break;
}
}
// no match, close this acm driver and try next one
acmDriverClose(had, 0L);
}
}
if (ret != MMSYSERR_NOERROR) {
ret = ACMERR_NOTPOSSIBLE;
goto errCleanUp;
}
}
ret = MMSYSERR_NOERROR;
if (!(fdwOpen & ACM_STREAMOPENF_QUERY)) {
if (phas)
*phas = (HACMSTREAM)was;
TRACE("=> (%d)\n", ret);
#ifdef WIN32_LOADER
CodecAlloc();
#endif
return ret;
}
errCleanUp:
if (phas)
*phas = (HACMSTREAM)0;
HeapFree(MSACM_hHeap, 0, was);
TRACE("=> (%d)\n", ret);
return ret;
}
MMRESULT WINAPI acmStreamClose(HACMSTREAM has, DWORD fdwClose)
{
PWINE_ACMSTREAM was;
MMRESULT ret;
TRACE("(0x%08x, %ld)\n", has, fdwClose);
if ((was = ACM_GetStream(has)) == NULL) {
return MMSYSERR_INVALHANDLE;
}
ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_CLOSE, (DWORD)&was->drvInst, 0);
if (ret == MMSYSERR_NOERROR) {
if (was->hAcmDriver)
acmDriverClose(was->hAcmDriver, 0L);
HeapFree(MSACM_hHeap, 0, was);
#ifdef WIN32_LOADER
CodecRelease();
#endif
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamConvert (MSACM32.38)
*/
MMRESULT WINAPI acmStreamConvert(HACMSTREAM has, PACMSTREAMHEADER pash,
DWORD fdwConvert)
{
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
PACMDRVSTREAMHEADER padsh;
TRACE("(0x%08x, %p, %ld)\n", has, pash, fdwConvert);
if ((was = ACM_GetStream(has)) == NULL)
return MMSYSERR_INVALHANDLE;
if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER))
return MMSYSERR_INVALPARAM;
if (!(pash->fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED))
return ACMERR_UNPREPARED;
/* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
* size. some fields are private to msacm internals, and are exposed
* in ACMSTREAMHEADER in the dwReservedDriver array
*/
padsh = (PACMDRVSTREAMHEADER)pash;
/* check that pointers have not been modified */
if (padsh->pbPreparedSrc != padsh->pbSrc ||
padsh->cbPreparedSrcLength < padsh->cbSrcLength ||
padsh->pbPreparedDst != padsh->pbDst ||
padsh->cbPreparedDstLength < padsh->cbDstLength) {
return MMSYSERR_INVALPARAM;
}
padsh->fdwConvert = fdwConvert;
ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_CONVERT, (DWORD)&was->drvInst, (DWORD)padsh);
if (ret == MMSYSERR_NOERROR) {
padsh->fdwStatus |= ACMSTREAMHEADER_STATUSF_DONE;
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamPrepareHeader (MSACM32.41)
*/
MMRESULT WINAPI acmStreamPrepareHeader(HACMSTREAM has, PACMSTREAMHEADER pash,
DWORD fdwPrepare)
{
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
PACMDRVSTREAMHEADER padsh;
TRACE("(0x%08x, %p, %ld)\n", has, pash, fdwPrepare);
if ((was = ACM_GetStream(has)) == NULL)
return MMSYSERR_INVALHANDLE;
if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER))
return MMSYSERR_INVALPARAM;
if (fdwPrepare)
ret = MMSYSERR_INVALFLAG;
if (pash->fdwStatus & ACMSTREAMHEADER_STATUSF_DONE)
return MMSYSERR_NOERROR;
/* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
* size. some fields are private to msacm internals, and are exposed
* in ACMSTREAMHEADER in the dwReservedDriver array
*/
padsh = (PACMDRVSTREAMHEADER)pash;
padsh->fdwConvert = fdwPrepare;
padsh->padshNext = NULL;
padsh->fdwDriver = padsh->dwDriver = 0L;
padsh->fdwPrepared = 0;
padsh->dwPrepared = 0;
padsh->pbPreparedSrc = 0;
padsh->cbPreparedSrcLength = 0;
padsh->pbPreparedDst = 0;
padsh->cbPreparedDstLength = 0;
ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_PREPARE, (DWORD)&was->drvInst, (DWORD)padsh);
if (ret == MMSYSERR_NOERROR || ret == MMSYSERR_NOTSUPPORTED) {
ret = MMSYSERR_NOERROR;
padsh->fdwStatus &= ~(ACMSTREAMHEADER_STATUSF_DONE|ACMSTREAMHEADER_STATUSF_INQUEUE);
padsh->fdwStatus |= ACMSTREAMHEADER_STATUSF_PREPARED;
padsh->fdwPrepared = padsh->fdwStatus;
padsh->dwPrepared = 0;
padsh->pbPreparedSrc = padsh->pbSrc;
padsh->cbPreparedSrcLength = padsh->cbSrcLength;
padsh->pbPreparedDst = padsh->pbDst;
padsh->cbPreparedDstLength = padsh->cbDstLength;
} else {
padsh->fdwPrepared = 0;
padsh->dwPrepared = 0;
padsh->pbPreparedSrc = 0;
padsh->cbPreparedSrcLength = 0;
padsh->pbPreparedDst = 0;
padsh->cbPreparedDstLength = 0;
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamReset (MSACM32.42)
*/
MMRESULT WINAPI acmStreamReset(HACMSTREAM has, DWORD fdwReset)
{
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
TRACE("(0x%08x, %ld)\n", has, fdwReset);
if (fdwReset) {
ret = MMSYSERR_INVALFLAG;
} else if ((was = ACM_GetStream(has)) == NULL) {
return MMSYSERR_INVALHANDLE;
} else if (was->drvInst.fdwOpen & ACM_STREAMOPENF_ASYNC) {
ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_RESET, (DWORD)&was->drvInst, 0);
}
TRACE("=> (%d)\n", ret);
return ret;
}
/***********************************************************************
* acmStreamSize (MSACM32.43)
*/
MMRESULT WINAPI acmStreamSize(HACMSTREAM has, DWORD cbInput,
LPDWORD pdwOutputBytes, DWORD fdwSize)
{
PWINE_ACMSTREAM was;
ACMDRVSTREAMSIZE adss;
MMRESULT ret;
TRACE("(0x%08x, %ld, %p, %ld)\n", has, cbInput, pdwOutputBytes, fdwSize);
if ((was = ACM_GetStream(has)) == NULL) {
return MMSYSERR_INVALHANDLE;
}
if ((fdwSize & ~ACM_STREAMSIZEF_QUERYMASK) != 0) {
return MMSYSERR_INVALFLAG;
}
*pdwOutputBytes = 0L;
switch (fdwSize & ACM_STREAMSIZEF_QUERYMASK) {
case ACM_STREAMSIZEF_DESTINATION:
adss.cbDstLength = cbInput;
adss.cbSrcLength = 0;
break;
case ACM_STREAMSIZEF_SOURCE:
adss.cbSrcLength = cbInput;
adss.cbDstLength = 0;
break;
default:
return MMSYSERR_INVALFLAG;
}
adss.cbStruct = sizeof(adss);
adss.fdwSize = fdwSize;
ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_SIZE,
(DWORD)&was->drvInst, (DWORD)&adss);
if (ret == MMSYSERR_NOERROR) {
switch (fdwSize & ACM_STREAMSIZEF_QUERYMASK) {
case ACM_STREAMSIZEF_DESTINATION:
*pdwOutputBytes = adss.cbSrcLength;
break;
case ACM_STREAMSIZEF_SOURCE:
*pdwOutputBytes = adss.cbDstLength;
break;
}
}
TRACE("=> (%d) [%lu]\n", ret, *pdwOutputBytes);
return ret;
}
/***********************************************************************
* acmStreamUnprepareHeader (MSACM32.44)
*/
MMRESULT WINAPI acmStreamUnprepareHeader(HACMSTREAM has, PACMSTREAMHEADER pash,
DWORD fdwUnprepare)
{
PWINE_ACMSTREAM was;
MMRESULT ret = MMSYSERR_NOERROR;
PACMDRVSTREAMHEADER padsh;
TRACE("(0x%08x, %p, %ld)\n", has, pash, fdwUnprepare);
if ((was = ACM_GetStream(has)) == NULL)
return MMSYSERR_INVALHANDLE;
if (!pash || pash->cbStruct < sizeof(ACMSTREAMHEADER))
return MMSYSERR_INVALPARAM;
if (!(pash->fdwStatus & ACMSTREAMHEADER_STATUSF_PREPARED))
return ACMERR_UNPREPARED;
/* Note: the ACMSTREAMHEADER and ACMDRVSTREAMHEADER structs are of same
* size. some fields are private to msacm internals, and are exposed
* in ACMSTREAMHEADER in the dwReservedDriver array
*/
padsh = (PACMDRVSTREAMHEADER)pash;
/* check that pointers have not been modified */
if (padsh->pbPreparedSrc != padsh->pbSrc ||
padsh->cbPreparedSrcLength < padsh->cbSrcLength ||
padsh->pbPreparedDst != padsh->pbDst ||
padsh->cbPreparedDstLength < padsh->cbDstLength) {
return MMSYSERR_INVALPARAM;
}
padsh->fdwConvert = fdwUnprepare;
ret = SendDriverMessage(was->pDrv->hDrvr, ACMDM_STREAM_UNPREPARE, (DWORD)&was->drvInst, (DWORD)padsh);
if (ret == MMSYSERR_NOERROR || ret == MMSYSERR_NOTSUPPORTED) {
ret = MMSYSERR_NOERROR;
padsh->fdwStatus &= ~(ACMSTREAMHEADER_STATUSF_DONE|ACMSTREAMHEADER_STATUSF_INQUEUE|ACMSTREAMHEADER_STATUSF_PREPARED);
}
TRACE("=> (%d)\n", ret);
return ret;
}
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