/* * MS ADPCM handling * * Copyright (C) 2002 Eric Pouech * * * 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 <assert.h> #include <stdarg.h> #include <string.h> #include "windef.h" #include "winbase.h" #include "wingdi.h" #include "winuser.h" #include "winnls.h" #include "mmsystem.h" #include "mmreg.h" #include "msacm.h" #include "msacmdrv.h" #include "wine/debug.h" /* see http://www.pcisys.net/~melanson/codecs/adpcm.txt for the details */ WINE_DEFAULT_DEBUG_CHANNEL(adpcm); /*********************************************************************** * ADPCM_drvOpen */ static LRESULT ADPCM_drvOpen(LPCSTR str) { return 1; } /*********************************************************************** * ADPCM_drvClose */ static LRESULT ADPCM_drvClose(DWORD_PTR dwDevID) { return 1; } typedef struct tagAcmAdpcmData { void (*convert)(PACMDRVSTREAMINSTANCE adsi, const unsigned char*, LPDWORD, unsigned char*, LPDWORD); } AcmAdpcmData; /* table to list all supported formats... those are the basic ones. this * also helps given a unique index to each of the supported formats */ typedef struct { int nChannels; int nBits; int rate; } Format; static Format PCM_Formats[] = { {1, 8, 8000}, {2, 8, 8000}, {1, 16, 8000}, {2, 16, 8000}, {1, 8, 11025}, {2, 8, 11025}, {1, 16, 11025}, {2, 16, 11025}, {1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050}, {1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100}, }; static Format ADPCM_Formats[] = { {1, 4, 8000}, {2, 4, 8000}, {1, 4, 11025}, {2, 4, 11025}, {1, 4, 22050}, {2, 4, 22050}, {1, 4, 44100}, {2, 4, 44100}, }; #define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0])) #define NUM_ADPCM_FORMATS (sizeof(ADPCM_Formats) / sizeof(ADPCM_Formats[0])) static int MS_Delta[] = { 230, 230, 230, 230, 307, 409, 512, 614, 768, 614, 512, 409, 307, 230, 230, 230 }; static ADPCMCOEFSET MSADPCM_CoeffSet[] = { {256, 0}, {512, -256}, {0, 0}, {192, 64}, {240, 0}, {460, -208}, {392, -232} }; /*********************************************************************** * ADPCM_GetFormatIndex */ static DWORD ADPCM_GetFormatIndex(WAVEFORMATEX* wfx) { int i, hi; Format* fmts; switch (wfx->wFormatTag) { case WAVE_FORMAT_PCM: hi = NUM_PCM_FORMATS; fmts = PCM_Formats; break; case WAVE_FORMAT_ADPCM: hi = NUM_ADPCM_FORMATS; fmts = ADPCM_Formats; break; default: return 0xFFFFFFFF; } for (i = 0; i < hi; i++) { if (wfx->nChannels == fmts[i].nChannels && wfx->nSamplesPerSec == fmts[i].rate && wfx->wBitsPerSample == fmts[i].nBits) return i; } return 0xFFFFFFFF; } static void init_wfx_adpcm(ADPCMWAVEFORMAT* awfx) { register WAVEFORMATEX* pwfx = &awfx->wfx; /* we assume wFormatTag, nChannels, nSamplesPerSec and wBitsPerSample * have been initialized... */ if (pwfx->wFormatTag != WAVE_FORMAT_ADPCM) {FIXME("wrong FT\n"); return;} if (ADPCM_GetFormatIndex(pwfx) == 0xFFFFFFFF) {FIXME("wrong fmt\n"); return;} switch (pwfx->nSamplesPerSec) { case 8000: pwfx->nBlockAlign = 256; break; case 11025: pwfx->nBlockAlign = 256; break; case 22050: pwfx->nBlockAlign = 512; break; default: case 44100: pwfx->nBlockAlign = 1024; break; } pwfx->cbSize = 2 * sizeof(WORD) + 7 * sizeof(ADPCMCOEFSET); /* 7 is the size of the block head (which contains two samples) */ awfx->wSamplesPerBlock = (pwfx->nBlockAlign - (7 * pwfx->nChannels)) * (2 / pwfx->nChannels) + 2; pwfx->nAvgBytesPerSec = (pwfx->nSamplesPerSec * pwfx->nBlockAlign) / awfx->wSamplesPerBlock; awfx->wNumCoef = 7; memcpy(awfx->aCoef, MSADPCM_CoeffSet, 7 * sizeof(ADPCMCOEFSET)); } /*********************************************************************** * R16 * * Read a 16 bit sample (correctly handles endianess) */ static inline short R16(const unsigned char* src) { return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8)); } /*********************************************************************** * W16 * * Write a 16 bit sample (correctly handles endianess) */ static inline void W16(unsigned char* dst, short s) { dst[0] = LOBYTE(s); dst[1] = HIBYTE(s); } static inline void clamp_sample(int* sample) { if (*sample < -32768) *sample = -32768; if (*sample > 32767) *sample = 32767; } static inline void process_nibble(unsigned nibble, int* idelta, int* sample1, int* sample2, const ADPCMCOEFSET* coeff) { int sample; int snibble; /* nibble is in fact a signed 4 bit integer => propagate sign if needed */ snibble = (nibble & 0x08) ? (nibble - 16) : nibble; sample = ((*sample1 * coeff->iCoef1) + (*sample2 * coeff->iCoef2)) / 256 + snibble * *idelta; clamp_sample(&sample); *sample2 = *sample1; *sample1 = sample; *idelta = ((MS_Delta[nibble] * *idelta) / 256); if (*idelta < 16) *idelta = 16; } static void cvtSSms16K(PACMDRVSTREAMINSTANCE adsi, const unsigned char* src, LPDWORD nsrc, unsigned char* dst, LPDWORD ndst) { int ideltaL, ideltaR; int sample1L, sample2L; int sample1R, sample2R; ADPCMCOEFSET coeffL, coeffR; int nsamp; int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock; DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign, *ndst / (nsamp_blk * 2 * 2)); *nsrc = nblock * adsi->pwfxSrc->nBlockAlign; *ndst = nblock * nsamp_blk * 2 * 2; nsamp_blk -= 2; /* see below for samples from block head */ for (; nblock > 0; nblock--) { const unsigned char* in_src = src; assert(*src <= 6); coeffL = MSADPCM_CoeffSet[*src++]; assert(*src <= 6); coeffR = MSADPCM_CoeffSet[*src++]; ideltaL = R16(src); src += 2; ideltaR = R16(src); src += 2; sample1L = R16(src); src += 2; sample1R = R16(src); src += 2; sample2L = R16(src); src += 2; sample2R = R16(src); src += 2; /* store samples from block head */ W16(dst, sample2L); dst += 2; W16(dst, sample2R); dst += 2; W16(dst, sample1L); dst += 2; W16(dst, sample1R); dst += 2; for (nsamp = nsamp_blk; nsamp > 0; nsamp--) { process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL); W16(dst, sample1L); dst += 2; process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR); W16(dst, sample1R); dst += 2; } src = in_src + adsi->pwfxSrc->nBlockAlign; } } static void cvtMMms16K(PACMDRVSTREAMINSTANCE adsi, const unsigned char* src, LPDWORD nsrc, unsigned char* dst, LPDWORD ndst) { int idelta; int sample1, sample2; ADPCMCOEFSET coeff; int nsamp; int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock; DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign, *ndst / (nsamp_blk * 2)); *nsrc = nblock * adsi->pwfxSrc->nBlockAlign; *ndst = nblock * nsamp_blk * 2; nsamp_blk -= 2; /* see below for samples from block head */ for (; nblock > 0; nblock--) { const unsigned char* in_src = src; assert(*src <= 6); coeff = MSADPCM_CoeffSet[*src++]; idelta = R16(src); src += 2; sample1 = R16(src); src += 2; sample2 = R16(src); src += 2; /* store samples from block head */ W16(dst, sample2); dst += 2; W16(dst, sample1); dst += 2; for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2) { process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff); W16(dst, sample1); dst += 2; process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff); W16(dst, sample1); dst += 2; } src = in_src + adsi->pwfxSrc->nBlockAlign; } } #if 0 static void cvtSS16msK(PACMDRVSTREAMINSTANCE adsi, const unsigned char* src, LPDWORD nsrc, unsigned char* dst, LPDWORD ndst) { } static void cvtMM16msK(PACMDRVSTREAMINSTANCE adsi, const unsigned char* src, LPDWORD nsrc, unsigned char* dst, LPDWORD ndst) { } #endif /*********************************************************************** * ADPCM_DriverDetails * */ static LRESULT ADPCM_DriverDetails(PACMDRIVERDETAILSW add) { add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC; add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED; add->wMid = 0xFF; add->wPid = 0x00; add->vdwACM = 0x01000000; add->vdwDriver = 0x01000000; add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC; add->cFormatTags = 2; /* PCM, MS ADPCM */ add->cFilterTags = 0; add->hicon = NULL; MultiByteToWideChar( CP_ACP, 0, "WINE-MS ADPCM", -1, add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) ); MultiByteToWideChar( CP_ACP, 0, "Wine MS ADPCM converter", -1, add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) ); MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1, add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) ); MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1, add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) ); add->szFeatures[0] = 0; return MMSYSERR_NOERROR; } /*********************************************************************** * ADPCM_FormatTagDetails * */ static LRESULT ADPCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery) { static const WCHAR szPcm[]={'P','C','M',0}; static const WCHAR szMsAdPcm[]={'M','S',' ','A','d','P','C','M',0}; switch (dwQuery) { case ACM_FORMATTAGDETAILSF_INDEX: if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE; break; case ACM_FORMATTAGDETAILSF_LARGESTSIZE: if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN) { aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_ADPCM is bigger than PCM */ break; } /* fall thru */ case ACM_FORMATTAGDETAILSF_FORMATTAG: switch (aftd->dwFormatTag) { case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break; case WAVE_FORMAT_ADPCM: aftd->dwFormatTagIndex = 1; break; default: return ACMERR_NOTPOSSIBLE; } break; default: WARN("Unsupported query %08lx\n", dwQuery); return MMSYSERR_NOTSUPPORTED; } aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC; switch (aftd->dwFormatTagIndex) { case 0: aftd->dwFormatTag = WAVE_FORMAT_PCM; aftd->cbFormatSize = sizeof(PCMWAVEFORMAT); aftd->cStandardFormats = NUM_PCM_FORMATS; lstrcpyW(aftd->szFormatTag, szPcm); break; case 1: aftd->dwFormatTag = WAVE_FORMAT_ADPCM; aftd->cbFormatSize = sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET); aftd->cStandardFormats = NUM_ADPCM_FORMATS; lstrcpyW(aftd->szFormatTag, szMsAdPcm); break; } return MMSYSERR_NOERROR; } /*********************************************************************** * ADPCM_FormatDetails * */ static LRESULT ADPCM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery) { switch (dwQuery) { case ACM_FORMATDETAILSF_FORMAT: if (ADPCM_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE; break; case ACM_FORMATDETAILSF_INDEX: afd->pwfx->wFormatTag = afd->dwFormatTag; switch (afd->dwFormatTag) { case WAVE_FORMAT_PCM: if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE; afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels; afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate; afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits; /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible * afd->pwfx->cbSize = 0; */ afd->pwfx->nBlockAlign = (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8; afd->pwfx->nAvgBytesPerSec = afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign; break; case WAVE_FORMAT_ADPCM: if (afd->dwFormatIndex >= NUM_ADPCM_FORMATS) return ACMERR_NOTPOSSIBLE; if (afd->cbwfx < sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET)) return ACMERR_NOTPOSSIBLE; afd->pwfx->nChannels = ADPCM_Formats[afd->dwFormatIndex].nChannels; afd->pwfx->nSamplesPerSec = ADPCM_Formats[afd->dwFormatIndex].rate; afd->pwfx->wBitsPerSample = ADPCM_Formats[afd->dwFormatIndex].nBits; init_wfx_adpcm((ADPCMWAVEFORMAT*)afd->pwfx); break; default: WARN("Unsupported tag %08lx\n", afd->dwFormatTag); return MMSYSERR_INVALPARAM; } break; default: WARN("Unsupported query %08lx\n", dwQuery); return MMSYSERR_NOTSUPPORTED; } afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC; afd->szFormat[0] = 0; /* let MSACM format this for us... */ return MMSYSERR_NOERROR; } /*********************************************************************** * ADPCM_FormatSuggest * */ static LRESULT ADPCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs) { /* some tests ... */ if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) || adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) || ADPCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE; /* FIXME: should do those tests against the real size (according to format tag */ /* If no suggestion for destination, then copy source value */ if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS)) adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels; if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC)) adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec; if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE)) { if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM) adfs->pwfxDst->wBitsPerSample = 4; else adfs->pwfxDst->wBitsPerSample = 16; } if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG)) { if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM) adfs->pwfxDst->wFormatTag = WAVE_FORMAT_ADPCM; else adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM; } /* check if result is ok */ if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE; /* recompute other values */ switch (adfs->pwfxDst->wFormatTag) { case WAVE_FORMAT_PCM: adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8; adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign; break; case WAVE_FORMAT_ADPCM: init_wfx_adpcm((ADPCMWAVEFORMAT*)adfs->pwfxDst); break; default: FIXME("\n"); break; } return MMSYSERR_NOERROR; } /*********************************************************************** * ADPCM_Reset * */ static void ADPCM_Reset(PACMDRVSTREAMINSTANCE adsi, AcmAdpcmData* aad) { } /*********************************************************************** * ADPCM_StreamOpen * */ static LRESULT ADPCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi) { AcmAdpcmData* aad; assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC)); if (ADPCM_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF || ADPCM_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE; aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmAdpcmData)); if (aad == 0) return MMSYSERR_NOMEM; adsi->dwDriver = (DWORD)aad; if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM) { goto theEnd; } else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM) { /* resampling or mono <=> stereo not available * ADPCM algo only define 16 bit per sample output */ if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec || adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels || adsi->pwfxDst->wBitsPerSample != 16) goto theEnd; #if 0 { unsigned int nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock; FIXME("spb=%u\n", nspb); /* we check that in a block, after the header, samples are present on * 4-sample packet pattern * we also check that the block alignement is bigger than the expected size */ if (((nspb - 1) & 3) != 0) goto theEnd; if ((((nspb - 1) / 2) + 4) * adsi->pwfxSrc->nChannels < adsi->pwfxSrc->nBlockAlign) goto theEnd; } #endif /* adpcm decoding... */ if (adsi->pwfxDst->wBitsPerSample == 16 && adsi->pwfxDst->nChannels == 2) aad->convert = cvtSSms16K; if (adsi->pwfxDst->wBitsPerSample == 16 && adsi->pwfxDst->nChannels == 1) aad->convert = cvtMMms16K; } else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM) { if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec || adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels || adsi->pwfxSrc->wBitsPerSample != 16) goto theEnd; #if 0 nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock; FIXME("spb=%u\n", nspb); /* we check that in a block, after the header, samples are present on * 4-sample packet pattern * we also check that the block alignement is bigger than the expected size */ if (((nspb - 1) & 3) != 0) goto theEnd; if ((((nspb - 1) / 2) + 4) * adsi->pwfxDst->nChannels < adsi->pwfxDst->nBlockAlign) goto theEnd; #endif #if 0 /* adpcm coding... */ if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 2) aad->convert = cvtSS16msK; if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 1) aad->convert = cvtMM16msK; #endif FIXME("We don't support encoding yet\n"); goto theEnd; } else goto theEnd; ADPCM_Reset(adsi, aad); return MMSYSERR_NOERROR; theEnd: HeapFree(GetProcessHeap(), 0, aad); adsi->dwDriver = 0L; return MMSYSERR_NOTSUPPORTED; } /*********************************************************************** * ADPCM_StreamClose * */ static LRESULT ADPCM_StreamClose(PACMDRVSTREAMINSTANCE adsi) { HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver); return MMSYSERR_NOERROR; } /*********************************************************************** * ADPCM_round * */ static inline DWORD ADPCM_round(DWORD a, DWORD b, DWORD c) { assert(a && b && c); /* to be sure, always return an entire number of c... */ return ((double)a * (double)b + (double)c - 1) / (double)c; } /*********************************************************************** * ADPCM_StreamSize * */ static LRESULT ADPCM_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss) { switch (adss->fdwSize) { case ACM_STREAMSIZEF_DESTINATION: /* cbDstLength => cbSrcLength */ if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM) { /* don't take block overhead into account, doesn't matter too much */ adss->cbSrcLength = adss->cbDstLength * 4; } else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM) { FIXME("misses the block header overhead\n"); adss->cbSrcLength = 256 + adss->cbDstLength / 4; } else { return MMSYSERR_NOTSUPPORTED; } break; case ACM_STREAMSIZEF_SOURCE: /* cbSrcLength => cbDstLength */ if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM) { FIXME("misses the block header overhead\n"); adss->cbDstLength = 256 + adss->cbSrcLength / 4; } else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM && adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM) { /* don't take block overhead into account, doesn't matter too much */ adss->cbDstLength = adss->cbSrcLength * 4; } else { return MMSYSERR_NOTSUPPORTED; } break; default: WARN("Unsupported query %08lx\n", adss->fdwSize); return MMSYSERR_NOTSUPPORTED; } return MMSYSERR_NOERROR; } /*********************************************************************** * ADPCM_StreamConvert * */ static LRESULT ADPCM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh) { AcmAdpcmData* aad = (AcmAdpcmData*)adsi->dwDriver; DWORD nsrc = adsh->cbSrcLength; DWORD ndst = adsh->cbDstLength; if (adsh->fdwConvert & ~(ACM_STREAMCONVERTF_BLOCKALIGN| ACM_STREAMCONVERTF_END| ACM_STREAMCONVERTF_START)) { FIXME("Unsupported fdwConvert (%08lx), ignoring it\n", adsh->fdwConvert); } /* ACM_STREAMCONVERTF_BLOCKALIGN * currently all conversions are block aligned, so do nothing for this flag * ACM_STREAMCONVERTF_END * no pending data, so do nothing for this flag */ if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START)) { ADPCM_Reset(adsi, aad); } aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst); adsh->cbSrcLengthUsed = nsrc; adsh->cbDstLengthUsed = ndst; return MMSYSERR_NOERROR; } /************************************************************************** * ADPCM_DriverProc [exported] */ LRESULT CALLBACK ADPCM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg, LPARAM dwParam1, LPARAM dwParam2) { TRACE("(%08lx %p %04x %08lx %08lx);\n", dwDevID, hDriv, wMsg, dwParam1, dwParam2); switch (wMsg) { case DRV_LOAD: return 1; case DRV_FREE: return 1; case DRV_OPEN: return ADPCM_drvOpen((LPSTR)dwParam1); case DRV_CLOSE: return ADPCM_drvClose(dwDevID); case DRV_ENABLE: return 1; case DRV_DISABLE: return 1; case DRV_QUERYCONFIGURE: return 1; case DRV_CONFIGURE: MessageBoxA(0, "MSACM MS ADPCM filter !", "Wine Driver", MB_OK); return 1; case DRV_INSTALL: return DRVCNF_RESTART; case DRV_REMOVE: return DRVCNF_RESTART; case ACMDM_DRIVER_NOTIFY: /* no caching from other ACM drivers is done so far */ return MMSYSERR_NOERROR; case ACMDM_DRIVER_DETAILS: return ADPCM_DriverDetails((PACMDRIVERDETAILSW)dwParam1); case ACMDM_FORMATTAG_DETAILS: return ADPCM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2); case ACMDM_FORMAT_DETAILS: return ADPCM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2); case ACMDM_FORMAT_SUGGEST: return ADPCM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1); case ACMDM_STREAM_OPEN: return ADPCM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1); case ACMDM_STREAM_CLOSE: return ADPCM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1); case ACMDM_STREAM_SIZE: return ADPCM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2); case ACMDM_STREAM_CONVERT: return ADPCM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2); case ACMDM_HARDWARE_WAVE_CAPS_INPUT: case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT: /* this converter is not a hardware driver */ case ACMDM_FILTERTAG_DETAILS: case ACMDM_FILTER_DETAILS: /* this converter is not a filter */ case ACMDM_STREAM_RESET: /* only needed for asynchronous driver... we aren't, so just say it */ return MMSYSERR_NOTSUPPORTED; case ACMDM_STREAM_PREPARE: case ACMDM_STREAM_UNPREPARE: /* nothing special to do here... so don't do anything */ return MMSYSERR_NOERROR; default: return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2); } }