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filter.c

/* -*- tab-width: 8; c-basic-offset: 4 -*- */

/*
 *      MSACM32 library
 *
 *      Copyright 1998  Patrik Stridvall
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "winerror.h"
#include "mmsystem.h"
#define NOBITMAP
#include "mmreg.h"
#include "msacm.h"
#include "msacmdrv.h"
#include "wineacm.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(msacm);

/***********************************************************************
 *           acmFilterChooseA (MSACM32.@)
 */
MMRESULT WINAPI acmFilterChooseA(PACMFILTERCHOOSEA pafltrc)
{
    FIXME("(%p): stub\n", pafltrc);
    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
    return MMSYSERR_ERROR;
}

/***********************************************************************
 *           acmFilterChooseW (MSACM32.@)
 */
MMRESULT WINAPI acmFilterChooseW(PACMFILTERCHOOSEW pafltrc)
{
    FIXME("(%p): stub\n", pafltrc);
    SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
    return MMSYSERR_ERROR;
}

/***********************************************************************
 *           acmFilterDetailsA (MSACM32.@)
 */
MMRESULT WINAPI acmFilterDetailsA(HACMDRIVER had, PACMFILTERDETAILSA pafd,
                          DWORD fdwDetails)
{
    ACMFILTERDETAILSW   afdw;
    MMRESULT            mmr;

    memset(&afdw, 0, sizeof(afdw));
    afdw.cbStruct = sizeof(afdw);
    afdw.dwFilterIndex = pafd->dwFilterIndex;
    afdw.dwFilterTag = pafd->dwFilterTag;
    afdw.pwfltr = pafd->pwfltr;
    afdw.cbwfltr = pafd->cbwfltr;

    mmr = acmFilterDetailsW(had, &afdw, fdwDetails);
    if (mmr == MMSYSERR_NOERROR) {
      pafd->dwFilterTag = afdw.dwFilterTag;
      pafd->fdwSupport = afdw.fdwSupport;
        WideCharToMultiByte( CP_ACP, 0, afdw.szFilter, -1, pafd->szFilter,
                             sizeof(pafd->szFilter), NULL, NULL );
    }
    return mmr;
}

/***********************************************************************
 *           acmFilterDetailsW (MSACM32.@)
 */
MMRESULT WINAPI acmFilterDetailsW(HACMDRIVER had, PACMFILTERDETAILSW pafd,
                          DWORD fdwDetails)
{
    MMRESULT                  mmr;
    ACMFILTERTAGDETAILSA      aftd;

    TRACE("(%p, %p, %d)\n", had, pafd, fdwDetails);

    memset(&aftd, 0, sizeof(aftd));
    aftd.cbStruct = sizeof(aftd);

    if (pafd->cbStruct < sizeof(*pafd)) return MMSYSERR_INVALPARAM;

    switch (fdwDetails) {
    case ACM_FILTERDETAILSF_FILTER:
      if (pafd->dwFilterTag != pafd->pwfltr->dwFilterTag) {
          mmr = MMSYSERR_INVALPARAM;
          break;
      }
      if (had == NULL) {
          PWINE_ACMDRIVERID         padid;

          mmr = ACMERR_NOTPOSSIBLE;
          for (padid = MSACM_pFirstACMDriverID; padid; padid = padid->pNextACMDriverID) {
            /* should check for codec only */
            if (!(padid->fdwSupport & ACMDRIVERDETAILS_SUPPORTF_DISABLED) &&
                acmDriverOpen(&had, (HACMDRIVERID)padid, 0) == 0) {
                mmr = MSACM_Message(had, ACMDM_FILTER_DETAILS,
                              (LPARAM)pafd, (LPARAM)fdwDetails);
                acmDriverClose(had, 0);
                if (mmr == MMSYSERR_NOERROR) break;
            }
          }
      } else {
          mmr = MSACM_Message(had, ACMDM_FILTER_DETAILS, (LPARAM)pafd, fdwDetails);
      }
      break;
    case ACM_FILTERDETAILSF_INDEX:
      /* should check pafd->dwFilterIndex < aftd->cStandardFilters */
      mmr = MSACM_Message(had, ACMDM_FILTER_DETAILS, (LPARAM)pafd, fdwDetails);
      break;
    default:
      WARN("Unknown fdwDetails %08x\n", fdwDetails);
      mmr = MMSYSERR_INVALFLAG;
      break;
    }

    TRACE("=> %d\n", mmr);
    return mmr;
}

struct MSACM_FilterEnumWtoA_Instance {
    PACMFILTERDETAILSA  pafda;
    DWORD         dwInstance;
    ACMFILTERENUMCBA    fnCallback;
};

static BOOL CALLBACK MSACM_FilterEnumCallbackWtoA(HACMDRIVERID hadid,
                                      PACMFILTERDETAILSW pafdw,
                                      DWORD dwInstance,
                                      DWORD fdwSupport)
{
    struct MSACM_FilterEnumWtoA_Instance* pafei;

    pafei = (struct MSACM_FilterEnumWtoA_Instance*)dwInstance;

    pafei->pafda->dwFilterIndex = pafdw->dwFilterIndex;
    pafei->pafda->dwFilterTag = pafdw->dwFilterTag;
    pafei->pafda->fdwSupport = pafdw->fdwSupport;
    WideCharToMultiByte( CP_ACP, 0, pafdw->szFilter, -1, pafei->pafda->szFilter,
                         sizeof(pafei->pafda->szFilter), NULL, NULL );

    return (pafei->fnCallback)(hadid, pafei->pafda,
                         pafei->dwInstance, fdwSupport);
}

/***********************************************************************
 *           acmFilterEnumA (MSACM32.@)
 */
MMRESULT WINAPI acmFilterEnumA(HACMDRIVER had, PACMFILTERDETAILSA pafda,
                         ACMFILTERENUMCBA fnCallback, DWORD dwInstance,
                         DWORD fdwEnum)
{
    ACMFILTERDETAILSW         afdw;
    struct MSACM_FilterEnumWtoA_Instance afei;

    memset(&afdw, 0, sizeof(afdw));
    afdw.cbStruct = sizeof(afdw);
    afdw.dwFilterIndex = pafda->dwFilterIndex;
    afdw.dwFilterTag = pafda->dwFilterTag;
    afdw.pwfltr = pafda->pwfltr;
    afdw.cbwfltr = pafda->cbwfltr;

    afei.pafda = pafda;
    afei.dwInstance = dwInstance;
    afei.fnCallback = fnCallback;

    return acmFilterEnumW(had, &afdw, MSACM_FilterEnumCallbackWtoA,
                    (DWORD)&afei, fdwEnum);
}

static BOOL MSACM_FilterEnumHelper(PWINE_ACMDRIVERID padid, HACMDRIVER had,
                           PACMFILTERDETAILSW pafd,
                           ACMFILTERENUMCBW fnCallback, DWORD dwInstance,
                           DWORD fdwEnum)
{
    ACMFILTERTAGDETAILSW      aftd;
    unsigned int i, j;

    for (i = 0; i < padid->cFilterTags; i++) {
      memset(&aftd, 0, sizeof(aftd));
      aftd.cbStruct = sizeof(aftd);
      aftd.dwFilterTagIndex = i;
      if (acmFilterTagDetailsW(had, &aftd, ACM_FILTERTAGDETAILSF_INDEX) != MMSYSERR_NOERROR)
          continue;

      if ((fdwEnum & ACM_FILTERENUMF_DWFILTERTAG) &&
          aftd.dwFilterTag != pafd->pwfltr->dwFilterTag)
          continue;

      for (j = 0; j < aftd.cStandardFilters; j++) {
          pafd->dwFilterIndex = j;
          pafd->dwFilterTag = aftd.dwFilterTag;
          if (acmFilterDetailsW(had, pafd, ACM_FILTERDETAILSF_INDEX) != MMSYSERR_NOERROR)
            continue;

          if (!(fnCallback)((HACMDRIVERID)padid, pafd, dwInstance, padid->fdwSupport))
            return FALSE;
      }
    }
    return TRUE;
}

/***********************************************************************
 *           acmFilterEnumW (MSACM32.@)
 */
MMRESULT WINAPI acmFilterEnumW(HACMDRIVER had, PACMFILTERDETAILSW pafd,
                         ACMFILTERENUMCBW fnCallback, DWORD dwInstance,
                         DWORD fdwEnum)
{
    PWINE_ACMDRIVERID         padid;
    BOOL                ret;

    TRACE("(%p, %p, %p, %d, %d)\n",
        had, pafd, fnCallback, dwInstance, fdwEnum);

    if (pafd->cbStruct < sizeof(*pafd)) return MMSYSERR_INVALPARAM;

    if (fdwEnum & ~(ACM_FILTERENUMF_DWFILTERTAG))
      FIXME("Unsupported fdwEnum values\n");

    if (had) {
      HACMDRIVERID      hadid;

      if (acmDriverID((HACMOBJ)had, &hadid, 0) != MMSYSERR_NOERROR)
          return MMSYSERR_INVALHANDLE;
      MSACM_FilterEnumHelper(MSACM_GetDriverID(hadid), had, pafd,
                         fnCallback, dwInstance, fdwEnum);
      return MMSYSERR_NOERROR;
    }
    for (padid = MSACM_pFirstACMDriverID; padid; padid = padid->pNextACMDriverID) {
          /* should check for codec only */
          if ((padid->fdwSupport & ACMDRIVERDETAILS_SUPPORTF_DISABLED) ||
            acmDriverOpen(&had, (HACMDRIVERID)padid, 0) != MMSYSERR_NOERROR)
            continue;
          ret = MSACM_FilterEnumHelper(padid, had, pafd,
                               fnCallback, dwInstance, fdwEnum);
          acmDriverClose(had, 0);
          if (!ret) break;
    }
    return MMSYSERR_NOERROR;
}

/***********************************************************************
 *           acmFilterTagDetailsA (MSACM32.@)
 */
MMRESULT WINAPI acmFilterTagDetailsA(HACMDRIVER had, PACMFILTERTAGDETAILSA paftda,
                             DWORD fdwDetails)
{
    ACMFILTERTAGDETAILSW      aftdw;
    MMRESULT                  mmr;

    memset(&aftdw, 0, sizeof(aftdw));
    aftdw.cbStruct = sizeof(aftdw);
    aftdw.dwFilterTagIndex = paftda->dwFilterTagIndex;
    aftdw.dwFilterTag = paftda->dwFilterTag;

    mmr = acmFilterTagDetailsW(had, &aftdw, fdwDetails);
    if (mmr == MMSYSERR_NOERROR) {
      paftda->dwFilterTag = aftdw.dwFilterTag;
      paftda->dwFilterTagIndex = aftdw.dwFilterTagIndex;
      paftda->cbFilterSize = aftdw.cbFilterSize;
      paftda->fdwSupport = aftdw.fdwSupport;
      paftda->cStandardFilters = aftdw.cStandardFilters;
        WideCharToMultiByte( CP_ACP, 0, aftdw.szFilterTag, -1, paftda->szFilterTag,
                             sizeof(paftda->szFilterTag), NULL, NULL );
    }
    return mmr;
}

/***********************************************************************
 *           acmFilterTagDetailsW (MSACM32.@)
 */
MMRESULT WINAPI acmFilterTagDetailsW(HACMDRIVER had, PACMFILTERTAGDETAILSW paftd,
                             DWORD fdwDetails)
{
    PWINE_ACMDRIVERID   padid;
    MMRESULT            mmr;

    TRACE("(%p, %p, %d)\n", had, paftd, fdwDetails);

    if (fdwDetails & ~(ACM_FILTERTAGDETAILSF_FILTERTAG|ACM_FILTERTAGDETAILSF_INDEX|
                   ACM_FILTERTAGDETAILSF_LARGESTSIZE))
      return MMSYSERR_INVALFLAG;

    switch (fdwDetails) {
    case ACM_FILTERTAGDETAILSF_FILTERTAG:
      if (had == NULL) {
          mmr = ACMERR_NOTPOSSIBLE;
          for (padid = MSACM_pFirstACMDriverID; padid; padid = padid->pNextACMDriverID) {
            /* should check for codec only */
            if (!(padid->fdwSupport & ACMDRIVERDETAILS_SUPPORTF_DISABLED) &&
                  acmDriverOpen(&had, (HACMDRIVERID)padid, 0) == 0) {
                mmr = MSACM_Message(had, ACMDM_FILTERTAG_DETAILS, (LPARAM)paftd, fdwDetails);
                acmDriverClose(had, 0);
                if (mmr == MMSYSERR_NOERROR) break;
            }
          }
      } else {
          mmr = MSACM_Message(had, ACMDM_FILTERTAG_DETAILS, (LPARAM)paftd, fdwDetails);
      }
      break;

    case ACM_FILTERTAGDETAILSF_INDEX:
      /* FIXME should check paftd->dwFilterTagIndex < add.cFilterTags */
      mmr = MSACM_Message(had, ACMDM_FILTERTAG_DETAILS, (LPARAM)paftd, fdwDetails);
      break;

    case ACM_FILTERTAGDETAILSF_LARGESTSIZE:
      if (had == NULL) {
          ACMFILTERTAGDETAILSW      tmp;
          DWORD               ft = paftd->dwFilterTag;

          mmr = ACMERR_NOTPOSSIBLE;
          for (padid = MSACM_pFirstACMDriverID; padid; padid = padid->pNextACMDriverID) {
            /* should check for codec only */
            if (!(padid->fdwSupport & ACMDRIVERDETAILS_SUPPORTF_DISABLED) &&
                acmDriverOpen(&had, (HACMDRIVERID)padid, 0) == 0) {

                memset(&tmp, 0, sizeof(tmp));
                tmp.cbStruct = sizeof(tmp);
                tmp.dwFilterTag = ft;

                if (MSACM_Message(had, ACMDM_FILTERTAG_DETAILS,
                              (LPARAM)&tmp, fdwDetails) == MMSYSERR_NOERROR) {
                  if (mmr == ACMERR_NOTPOSSIBLE ||
                      paftd->cbFilterSize < tmp.cbFilterSize) {
                      *paftd = tmp;
                      mmr = MMSYSERR_NOERROR;
                  }
                }
                acmDriverClose(had, 0);
            }
          }
      } else {
          mmr = MSACM_Message(had, ACMDM_FILTERTAG_DETAILS, (LPARAM)paftd, fdwDetails);
      }
      break;

    default:
      WARN("Unsupported fdwDetails=%08x\n", fdwDetails);
      mmr = MMSYSERR_ERROR;
    }

    if (mmr == MMSYSERR_NOERROR &&
      paftd->dwFilterTag == WAVE_FORMAT_PCM && paftd->szFilterTag[0] == 0)
        MultiByteToWideChar( CP_ACP, 0, "PCM", -1, paftd->szFilterTag,
                             sizeof(paftd->szFilterTag)/sizeof(WCHAR) );

    return mmr;
}

struct MSACM_FilterTagEnumWtoA_Instance {
    PACMFILTERTAGDETAILSA     paftda;
    DWORD               dwInstance;
    ACMFILTERTAGENUMCBA       fnCallback;
};

static BOOL CALLBACK MSACM_FilterTagEnumCallbackWtoA(HACMDRIVERID hadid,
                                         PACMFILTERTAGDETAILSW paftdw,
                                         DWORD dwInstance,
                                         DWORD fdwSupport)
{
    struct MSACM_FilterTagEnumWtoA_Instance* paftei;

    paftei = (struct MSACM_FilterTagEnumWtoA_Instance*)dwInstance;

    paftei->paftda->dwFilterTagIndex = paftdw->dwFilterTagIndex;
    paftei->paftda->dwFilterTag = paftdw->dwFilterTag;
    paftei->paftda->cbFilterSize = paftdw->cbFilterSize;
    paftei->paftda->fdwSupport = paftdw->fdwSupport;
    paftei->paftda->cStandardFilters = paftdw->cStandardFilters;
    WideCharToMultiByte( CP_ACP, 0, paftdw->szFilterTag, -1, paftei->paftda->szFilterTag,
                         sizeof(paftei->paftda->szFilterTag), NULL, NULL );

    return (paftei->fnCallback)(hadid, paftei->paftda,
                        paftei->dwInstance, fdwSupport);
}

/***********************************************************************
 *           acmFilterTagEnumA (MSACM32.@)
 */
MMRESULT WINAPI acmFilterTagEnumA(HACMDRIVER had, PACMFILTERTAGDETAILSA paftda,
                          ACMFILTERTAGENUMCBA fnCallback, DWORD dwInstance,
                          DWORD fdwEnum)
{
    ACMFILTERTAGDETAILSW      aftdw;
    struct MSACM_FilterTagEnumWtoA_Instance aftei;

    memset(&aftdw, 0, sizeof(aftdw));
    aftdw.cbStruct = sizeof(aftdw);
    aftdw.dwFilterTagIndex = paftda->dwFilterTagIndex;
    aftdw.dwFilterTag = paftda->dwFilterTag;

    aftei.paftda = paftda;
    aftei.dwInstance = dwInstance;
    aftei.fnCallback = fnCallback;

    return acmFilterTagEnumW(had, &aftdw, MSACM_FilterTagEnumCallbackWtoA,
                       (DWORD)&aftei, fdwEnum);
}

/***********************************************************************
 *           acmFilterTagEnumW (MSACM32.@)
 */
MMRESULT WINAPI acmFilterTagEnumW(HACMDRIVER had, PACMFILTERTAGDETAILSW paftd,
                          ACMFILTERTAGENUMCBW fnCallback, DWORD dwInstance,
                          DWORD fdwEnum)
{
    PWINE_ACMDRIVERID         padid;
    unsigned int              i;

    TRACE("(%p, %p, %p, %d, %d)\n",
        had, paftd, fnCallback, dwInstance, fdwEnum);

    if (paftd->cbStruct < sizeof(*paftd)) return MMSYSERR_INVALPARAM;

    if (had) FIXME("had != NULL, not supported\n");

    for (padid = MSACM_pFirstACMDriverID; padid; padid = padid->pNextACMDriverID) {
      /* should check for codec only */
      if (!(padid->fdwSupport & ACMDRIVERDETAILS_SUPPORTF_DISABLED) &&
          acmDriverOpen(&had, (HACMDRIVERID)padid, 0) == MMSYSERR_NOERROR) {

          for (i = 0; i < padid->cFilterTags; i++) {
            paftd->dwFilterTagIndex = i;
            if (acmFilterTagDetailsW(had, paftd, ACM_FILTERTAGDETAILSF_INDEX) == MMSYSERR_NOERROR) {
                if (!(fnCallback)((HACMDRIVERID)padid, paftd, dwInstance, padid->fdwSupport)) {
                  padid = NULL;
                  break;
                }
            }
          }
      }
      acmDriverClose(had, 0);
    }
    return MMSYSERR_NOERROR;
}

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