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.

  Modified for use with MPlayer, detailed changelog at
  http://svn.mplayerhq.hu/mplayer/trunk/
  $Id: afl.c,v 1.3 2008/04/12 07:14:45 dsqiu Exp $
  
***************************************************************************/
#include "config.h"
#include "debug.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"
#ifndef __MINGW32__
#include "ext.h"
#endif
#include "driver.h"

#include <mplaylib.h>
#include <mplaylib.h>
#include <mplaylib.h>
#undef memcpy
#define memcpy uc_memcpy
#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;


    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 = 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;