+++ /dev/null
-/*
- * IMA ADPCM handling
- *
- * Copyright (C) 2001,2002 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
- */
-
-#define WIN32_NO_STATUS
-
-#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_drvClose
- */
-static LRESULT ADPCM_drvClose(DWORD_PTR dwDevID)
-{
- return 1;
-}
-
-typedef struct tagAcmAdpcmData
-{
- void (*convert)(PACMDRVSTREAMINSTANCE adsi,
- const unsigned char*, LPDWORD, unsigned char*, LPDWORD);
- /* IMA encoding only */
- BYTE stepIndexL;
- BYTE stepIndexR;
- /* short sample; */
-} 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 const 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 const 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]))
-
-/***********************************************************************
- * ADPCM_GetFormatIndex
- */
-static DWORD ADPCM_GetFormatIndex(const WAVEFORMATEX *wfx)
-{
- int i, hi;
- const Format* fmts;
-
- switch (wfx->wFormatTag)
- {
- case WAVE_FORMAT_PCM:
- hi = NUM_PCM_FORMATS;
- fmts = PCM_Formats;
- break;
- case WAVE_FORMAT_IMA_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;
- }
-
- switch (wfx->wFormatTag)
- {
- case WAVE_FORMAT_PCM:
- if(3 > wfx->nChannels &&
- wfx->nChannels > 0 &&
- wfx->nAvgBytesPerSec == 2 * wfx->nSamplesPerSec * wfx->nChannels &&
- wfx->nBlockAlign == 2 * wfx->nChannels &&
- wfx->wBitsPerSample == 16)
- return hi;
- break;
- case WAVE_FORMAT_IMA_ADPCM:
- if(3 > wfx->nChannels &&
- wfx->nChannels > 0 &&
- wfx->wBitsPerSample == 4 &&
- wfx->cbSize == 2)
- return hi;
- break;
- }
-
- return 0xFFFFFFFF;
-}
-
-static void init_wfx_ima_adpcm(IMAADPCMWAVEFORMAT* awfx/*, DWORD nba*/)
-{
- WAVEFORMATEX* pwfx = &awfx->wfx;
-
- /* we assume wFormatTag, nChannels, nSamplesPerSec and wBitsPerSample
- * have been initialized... */
-
- if (pwfx->wFormatTag != WAVE_FORMAT_IMA_ADPCM) {FIXME("wrong FT\n"); return;}
- if (ADPCM_GetFormatIndex(pwfx) == 0xFFFFFFFF) {FIXME("wrong fmt\n"); return;}
-
- switch (pwfx->nSamplesPerSec)
- {
- case 8000: pwfx->nBlockAlign = 256 * pwfx->nChannels; break;
- case 11025: pwfx->nBlockAlign = 256 * pwfx->nChannels; break;
- case 22050: pwfx->nBlockAlign = 512 * pwfx->nChannels; break;
- case 44100: pwfx->nBlockAlign = 1024 * pwfx->nChannels; break;
- default: /*pwfx->nBlockAlign = nba;*/ break;
- }
- pwfx->cbSize = sizeof(WORD);
-
- awfx->wSamplesPerBlock = (pwfx->nBlockAlign - (4 * pwfx->nChannels)) * (2 / pwfx->nChannels) + 1;
- pwfx->nAvgBytesPerSec = (pwfx->nSamplesPerSec * pwfx->nBlockAlign) / awfx->wSamplesPerBlock;
-}
-
-/***********************************************************************
- * R16
- *
- * Read a 16 bit sample (correctly handles endianness)
- */
-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 endianness)
- */
-static inline void W16(unsigned char* dst, short s)
-{
- dst[0] = LOBYTE(s);
- dst[1] = HIBYTE(s);
-}
-
-/***********************************************************************
- * W8
- *
- * Write a 8 bit sample
- */
-static inline void W8(unsigned char* dst, short s)
-{
- dst[0] = (unsigned char)((s + 32768) >> 8);
-}
-
-
-static inline void W8_16(unsigned char* dst, short s, int bytes)
-{
- if(bytes == 1)
- W8(dst, s);
- else
- W16(dst, s);
-}
-
-/* IMA (or DVI) APDCM codec routines */
-
-static const unsigned IMA_StepTable[89] =
-{
- 7, 8, 9, 10, 11, 12, 13, 14,
- 16, 17, 19, 21, 23, 25, 28, 31,
- 34, 37, 41, 45, 50, 55, 60, 66,
- 73, 80, 88, 97, 107, 118, 130, 143,
- 157, 173, 190, 209, 230, 253, 279, 307,
- 337, 371, 408, 449, 494, 544, 598, 658,
- 724, 796, 876, 963, 1060, 1166, 1282, 1411,
- 1552, 1707, 1878, 2066, 2272, 2499, 2749, 3024,
- 3327, 3660, 4026, 4428, 4871, 5358, 5894, 6484,
- 7132, 7845, 8630, 9493, 10442, 11487, 12635, 13899,
- 15289, 16818, 18500, 20350, 22385, 24623, 27086, 29794,
- 32767
-};
-
-static const int IMA_IndexTable[16] =
-{
- -1, -1, -1, -1, 2, 4, 6, 8,
- -1, -1, -1, -1, 2, 4, 6, 8
-};
-
-static inline void clamp_step_index(int* stepIndex)
-{
- if (*stepIndex < 0 ) *stepIndex = 0;
- if (*stepIndex > 88) *stepIndex = 88;
-}
-
-static inline void clamp_sample(int* sample)
-{
- if (*sample < -32768) *sample = -32768;
- if (*sample > 32767) *sample = 32767;
-}
-
-static inline void process_nibble(unsigned char code, int* stepIndex, int* sample)
-{
- unsigned step;
- int diff;
-
- code &= 0x0F;
-
- step = IMA_StepTable[*stepIndex];
- diff = step >> 3;
- if (code & 1) diff += step >> 2;
- if (code & 2) diff += step >> 1;
- if (code & 4) diff += step;
- if (code & 8) *sample -= diff;
- else *sample += diff;
- clamp_sample(sample);
- *stepIndex += IMA_IndexTable[code];
- clamp_step_index(stepIndex);
-}
-
-static inline unsigned char generate_nibble(int in, int* stepIndex, int* sample)
-{
- int effdiff, diff = in - *sample;
- unsigned step;
- unsigned char code;
-
- if (diff < 0)
- {
- diff = -diff;
- code = 8;
- }
- else
- {
- code = 0;
- }
-
- step = IMA_StepTable[*stepIndex];
- effdiff = (step >> 3);
- if (diff >= step)
- {
- code |= 4;
- diff -= step;
- effdiff += step;
- }
- step >>= 1;
- if (diff >= step)
- {
- code |= 2;
- diff -= step;
- effdiff += step;
- }
- step >>= 1;
- if (diff >= step)
- {
- code |= 1;
- effdiff += step;
- }
- if (code & 8) *sample -= effdiff;
- else *sample += effdiff;
- clamp_sample(sample);
- *stepIndex += IMA_IndexTable[code];
- clamp_step_index(stepIndex);
- return code;
-}
-
-static void cvtSSima16K(PACMDRVSTREAMINSTANCE adsi,
- const unsigned char* src, LPDWORD nsrc,
- unsigned char* dst, LPDWORD ndst)
-{
- int i;
- int sampleL, sampleR;
- int stepIndexL, stepIndexR;
- int nsamp_blk = ((LPIMAADPCMWAVEFORMAT)adsi->pwfxSrc)->wSamplesPerBlock;
- int nsamp;
- /* compute the number of entire blocks we can decode...
- * it's the min of the number of entire blocks in source buffer and the number
- * of entire blocks in destination buffer
- */
- 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--; /* remove the sample in block header */
- for (; nblock > 0; nblock--)
- {
- const unsigned char* in_src = src;
-
- /* handle headers first */
- sampleL = R16(src);
- stepIndexL = (unsigned)*(src + 2);
- clamp_step_index(&stepIndexL);
- src += 4;
- W16(dst, sampleL); dst += 2;
-
- sampleR = R16(src);
- stepIndexR = (unsigned)*(src + 2);
- clamp_step_index(&stepIndexR);
- src += 4;
- W16(dst, sampleR); dst += 2;
-
- for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 8)
- {
- for (i = 0; i < 4; i++)
- {
- process_nibble(*src, &stepIndexL, &sampleL);
- W16(dst + (2 * i + 0) * 4 + 0, sampleL);
- process_nibble(*src++ >> 4, &stepIndexL, &sampleL);
- W16(dst + (2 * i + 1) * 4 + 0, sampleL);
- }
- for (i = 0; i < 4; i++)
- {
- process_nibble(*src , &stepIndexR, &sampleR);
- W16(dst + (2 * i + 0) * 4 + 2, sampleR);
- process_nibble(*src++ >>4, &stepIndexR, &sampleR);
- W16(dst + (2 * i + 1) * 4 + 2, sampleR);
- }
- dst += 32;
- }
- /* we have now to realign the source pointer on block */
- src = in_src + adsi->pwfxSrc->nBlockAlign;
- }
-}
-
-static void cvtMMimaK(PACMDRVSTREAMINSTANCE adsi,
- const unsigned char* src, LPDWORD nsrc,
- unsigned char* dst, LPDWORD ndst)
-{
- int sample;
- int stepIndex;
- int nsamp_blk = ((LPIMAADPCMWAVEFORMAT)adsi->pwfxSrc)->wSamplesPerBlock;
- int nsamp;
- int bytesPerSample = adsi->pwfxDst->wBitsPerSample / 8;
- /* compute the number of entire blocks we can decode...
- * it's the min of the number of entire blocks in source buffer and the number
- * of entire blocks in destination buffer
- */
- DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign, *ndst / (nsamp_blk * bytesPerSample));
-
- *nsrc = nblock * adsi->pwfxSrc->nBlockAlign;
- *ndst = nblock * nsamp_blk * bytesPerSample;
-
- nsamp_blk--; /* remove the sample in block header */
- for (; nblock > 0; nblock--)
- {
- const unsigned char* in_src = src;
-
- /* handle header first */
- sample = R16(src);
- stepIndex = (unsigned)*(src + 2);
- clamp_step_index(&stepIndex);
- src += 4;
- W8_16(dst, sample, bytesPerSample); dst += bytesPerSample;
-
- for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
- {
- process_nibble(*src, &stepIndex, &sample);
- W8_16(dst, sample, bytesPerSample); dst += bytesPerSample;
- process_nibble(*src++ >> 4, &stepIndex, &sample);
- W8_16(dst, sample, bytesPerSample); dst += bytesPerSample;
- }
- /* we have now to realign the source pointer on block */
- src = in_src + adsi->pwfxSrc->nBlockAlign;
- }
-}
-
-static void cvtSS16imaK(PACMDRVSTREAMINSTANCE adsi,
- const unsigned char* src, LPDWORD nsrc,
- unsigned char* dst, LPDWORD ndst)
-{
- int stepIndexL, stepIndexR;
- int sampleL, sampleR;
- BYTE code1, code2;
- int nsamp_blk = ((LPIMAADPCMWAVEFORMAT)adsi->pwfxDst)->wSamplesPerBlock;
- int i, nsamp;
- /* compute the number of entire blocks we can decode...
- * it's the min of the number of entire blocks in source buffer and the number
- * of entire blocks in destination buffer
- */
- DWORD nblock = min(*nsrc / (nsamp_blk * 2 * 2),
- *ndst / adsi->pwfxDst->nBlockAlign);
-
- *nsrc = nblock * (nsamp_blk * 2 * 2);
- *ndst = nblock * adsi->pwfxDst->nBlockAlign;
-
- stepIndexL = ((AcmAdpcmData*)adsi->dwDriver)->stepIndexL;
- stepIndexR = ((AcmAdpcmData*)adsi->dwDriver)->stepIndexR;
-
- nsamp_blk--; /* so that we won't count the sample in header while filling the block */
-
- for (; nblock > 0; nblock--)
- {
- unsigned char* in_dst = dst;
-
- /* generate header */
- sampleL = R16(src); src += 2;
- W16(dst, sampleL); dst += 2;
- W16(dst, stepIndexL); dst += 2;
-
- sampleR = R16(src); src += 2;
- W16(dst, sampleR); dst += 2;
- W16(dst, stepIndexR); dst += 2;
-
- for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 8)
- {
- for (i = 0; i < 4; i++)
- {
- code1 = generate_nibble(R16(src + (4 * i + 0) * 2),
- &stepIndexL, &sampleL);
- code2 = generate_nibble(R16(src + (4 * i + 2) * 2),
- &stepIndexL, &sampleL);
- *dst++ = (code2 << 4) | code1;
- }
- for (i = 0; i < 4; i++)
- {
- code1 = generate_nibble(R16(src + (4 * i + 1) * 2),
- &stepIndexR, &sampleR);
- code2 = generate_nibble(R16(src + (4 * i + 3) * 2),
- &stepIndexR, &sampleR);
- *dst++ = (code2 << 4) | code1;
- }
- src += 32;
- }
- dst = in_dst + adsi->pwfxDst->nBlockAlign;
- }
- ((AcmAdpcmData*)adsi->dwDriver)->stepIndexL = stepIndexL;
- ((AcmAdpcmData*)adsi->dwDriver)->stepIndexR = stepIndexR;
-}
-
-static void cvtMM16imaK(PACMDRVSTREAMINSTANCE adsi,
- const unsigned char* src, LPDWORD nsrc,
- unsigned char* dst, LPDWORD ndst)
-{
- int stepIndex;
- int sample;
- BYTE code1, code2;
- int nsamp_blk = ((LPIMAADPCMWAVEFORMAT)adsi->pwfxDst)->wSamplesPerBlock;
- int nsamp;
- /* compute the number of entire blocks we can decode...
- * it's the min of the number of entire blocks in source buffer and the number
- * of entire blocks in destination buffer
- */
- DWORD nblock = min(*nsrc / (nsamp_blk * 2),
- *ndst / adsi->pwfxDst->nBlockAlign);
-
- *nsrc = nblock * (nsamp_blk * 2);
- *ndst = nblock * adsi->pwfxDst->nBlockAlign;
-
- stepIndex = ((AcmAdpcmData*)adsi->dwDriver)->stepIndexL;
- nsamp_blk--; /* so that we won't count the sample in header while filling the block */
-
- for (; nblock > 0; nblock--)
- {
- unsigned char* in_dst = dst;
-
- /* generate header */
- /* FIXME: what about the last effective sample from previous block ??? */
- /* perhaps something like:
- * sample += R16(src);
- * clamp_sample(sample);
- * and with :
- * + saving the sample in adsi->dwDriver when all blocks are done
- + + reset should set the field in adsi->dwDriver to 0 too
- */
- sample = R16(src); src += 2;
- W16(dst, sample); dst += 2;
- *dst = (unsigned char)(unsigned)stepIndex;
- dst += 2;
-
- for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
- {
- code1 = generate_nibble(R16(src), &stepIndex, &sample);
- src += 2;
- code2 = generate_nibble(R16(src), &stepIndex, &sample);
- src += 2;
- *dst++ = (code2 << 4) | code1;
- }
- dst = in_dst + adsi->pwfxDst->nBlockAlign;
- }
- ((AcmAdpcmData*)adsi->dwDriver)->stepIndexL = stepIndex;
-}
-
-/***********************************************************************
- * ADPCM_DriverDetails
- *
- */
-static LRESULT ADPCM_DriverDetails(PACMDRIVERDETAILSW add)
-{
- add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
- add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
- add->wMid = MM_MICROSOFT;
- add->wPid = MM_MSFT_ACM_IMAADPCM;
- add->vdwACM = 0x3320000;
- add->vdwDriver = 0x04000000;
- add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
- add->cFormatTags = 2; /* PCM, IMA ADPCM */
- add->cFilterTags = 0;
- add->hicon = NULL;
- MultiByteToWideChar( CP_ACP, 0, "Microsoft IMA ADPCM", -1,
- add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
- MultiByteToWideChar( CP_ACP, 0, "Microsoft IMA ADPCM CODEC", -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 szImaAdPcm[]={'I','M','A',' ','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_IMA_ADPCM is bigger than PCM */
- break;
- }
- /* fall through */
- case ACM_FORMATTAGDETAILSF_FORMATTAG:
- switch (aftd->dwFormatTag)
- {
- case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
- case WAVE_FORMAT_IMA_ADPCM: aftd->dwFormatTagIndex = 1; break;
- default: return ACMERR_NOTPOSSIBLE;
- }
- break;
- default:
- WARN("Unsupported query %08x\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_IMA_ADPCM;
- aftd->cbFormatSize = sizeof(IMAADPCMWAVEFORMAT);
- aftd->cStandardFormats = NUM_ADPCM_FORMATS;
- lstrcpyW(aftd->szFormatTag, szImaAdPcm);
- 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_IMA_ADPCM:
- if (afd->dwFormatIndex >= NUM_ADPCM_FORMATS) 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_ima_adpcm((IMAADPCMWAVEFORMAT *)afd->pwfx);
- break;
- default:
- WARN("Unsupported tag %08x\n", afd->dwFormatTag);
- return MMSYSERR_INVALPARAM;
- }
- break;
- default:
- WARN("Unsupported query %08x\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) ||
- adfs->pwfxSrc->wFormatTag == adfs->pwfxDst->wFormatTag ||
- ADPCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
-
- /* 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_IMA_ADPCM;
- else
- adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
- }
-
- /* recompute other values */
- switch (adfs->pwfxDst->wFormatTag)
- {
- case WAVE_FORMAT_PCM:
- if (adfs->cbwfxSrc < sizeof(IMAADPCMWAVEFORMAT)) return ACMERR_NOTPOSSIBLE;
- adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
- adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
- /* check if result is ok */
- if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
- break;
- case WAVE_FORMAT_IMA_ADPCM:
- if (adfs->cbwfxDst < sizeof(IMAADPCMWAVEFORMAT)) return ACMERR_NOTPOSSIBLE;
- init_wfx_ima_adpcm((IMAADPCMWAVEFORMAT*)adfs->pwfxDst);
- /* FIXME: not handling header overhead */
- TRACE("setting spb=%u\n", ((IMAADPCMWAVEFORMAT*)adfs->pwfxDst)->wSamplesPerBlock);
- /* check if result is ok */
- if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
- break;
- default:
- return ACMERR_NOTPOSSIBLE;
- }
-
- return MMSYSERR_NOERROR;
-}
-
-/***********************************************************************
- * ADPCM_Reset
- *
- */
-static void ADPCM_Reset(PACMDRVSTREAMINSTANCE adsi, AcmAdpcmData* aad)
-{
- aad->stepIndexL = aad->stepIndexR = 0;
-}
-
-/***********************************************************************
- * ADPCM_StreamOpen
- *
- */
-static LRESULT ADPCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
-{
- AcmAdpcmData* aad;
- unsigned nspb;
-
- 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_PTR)aad;
-
- if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
- {
- goto theEnd;
- }
- else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_IMA_ADPCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
- {
- /* resampling or mono <=> stereo not available
- * ADPCM algo only define 16 bit per sample output
- * (The API seems to still allow 8 bit per sample output)
- */
- if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
- adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
- (adsi->pwfxDst->wBitsPerSample != 16 && adsi->pwfxDst->wBitsPerSample != 8))
- goto theEnd;
-
- nspb = ((LPIMAADPCMWAVEFORMAT)adsi->pwfxSrc)->wSamplesPerBlock;
- TRACE("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 alignment 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;
-
- /* adpcm decoding... */
- if (adsi->pwfxDst->wBitsPerSample == 16 && adsi->pwfxDst->nChannels == 2)
- aad->convert = cvtSSima16K;
- if (adsi->pwfxDst->wBitsPerSample == 16 && adsi->pwfxDst->nChannels == 1)
- aad->convert = cvtMMimaK;
- if (adsi->pwfxDst->wBitsPerSample == 8 && adsi->pwfxDst->nChannels == 1)
- aad->convert = cvtMMimaK;
- /* FIXME: Stereo support for 8bit samples*/
- if (adsi->pwfxDst->wBitsPerSample == 8 && adsi->pwfxDst->nChannels == 2)
- goto theEnd;
- }
- else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_IMA_ADPCM)
- {
- if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
- adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
- adsi->pwfxSrc->wBitsPerSample != 16)
- goto theEnd;
-
- nspb = ((LPIMAADPCMWAVEFORMAT)adsi->pwfxDst)->wSamplesPerBlock;
- TRACE("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 alignment 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;
-
- /* adpcm coding... */
- if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 2)
- aad->convert = cvtSS16imaK;
- if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 1)
- aad->convert = cvtMM16imaK;
- }
- 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_StreamSize
- *
- */
-static LRESULT ADPCM_StreamSize(const ACMDRVSTREAMINSTANCE *adsi, PACMDRVSTREAMSIZE adss)
-{
- DWORD nblocks;
-
- switch (adss->fdwSize)
- {
- case ACM_STREAMSIZEF_DESTINATION:
- /* cbDstLength => cbSrcLength */
- if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_IMA_ADPCM)
- {
- nblocks = adss->cbDstLength / adsi->pwfxDst->nBlockAlign;
- if (nblocks == 0)
- return ACMERR_NOTPOSSIBLE;
- adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign * ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock;
- }
- else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_IMA_ADPCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
- {
- nblocks = adss->cbDstLength / (adsi->pwfxDst->nBlockAlign * ((IMAADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock);
- if (nblocks == 0)
- return ACMERR_NOTPOSSIBLE;
- adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign;
- }
- else
- {
- return MMSYSERR_NOTSUPPORTED;
- }
- break;
- case ACM_STREAMSIZEF_SOURCE:
- /* cbSrcLength => cbDstLength */
- if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_IMA_ADPCM)
- {
- nblocks = adss->cbSrcLength / (adsi->pwfxSrc->nBlockAlign * ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock);
- if (nblocks == 0)
- return ACMERR_NOTPOSSIBLE;
- if (adss->cbSrcLength % (adsi->pwfxSrc->nBlockAlign * ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock))
- /* Round block count up. */
- nblocks++;
- adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign;
- }
- else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_IMA_ADPCM &&
- adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
- {
- nblocks = adss->cbSrcLength / adsi->pwfxSrc->nBlockAlign;
- if (nblocks == 0)
- return ACMERR_NOTPOSSIBLE;
- if (adss->cbSrcLength % adsi->pwfxSrc->nBlockAlign)
- /* Round block count up. */
- nblocks++;
- adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign * ((IMAADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
- }
- else
- {
- return MMSYSERR_NOTSUPPORTED;
- }
- break;
- default:
- WARN("Unsupported query %08x\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 (%08x), 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 1;
- 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 IMA 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);
- }
-}
projects / reactos.git / blobdiff