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mfplay: Implement GetCharacteristics().
[wine/zf.git] / dlls / msadp32.acm / msadp32.c
blob8b83f69c006a7a8967270087039ff468cabab439
1 /*
2 * MS ADPCM handling
3 *
4 * Copyright (C) 2002 Eric Pouech
5 *
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
20 */
21
22 #include <assert.h>
23 #include <stdarg.h>
24 #include <string.h>
25 #include "windef.h"
26 #include "winbase.h"
27 #include "wingdi.h"
28 #include "winuser.h"
29 #include "winnls.h"
30 #include "mmsystem.h"
31 #include "mmreg.h"
32 #include "msacm.h"
33 #include "msacmdrv.h"
34 #include "wine/debug.h"
35
36 /* see http://www.pcisys.net/~melanson/codecs/adpcm.txt for the details */
37
38 WINE_DEFAULT_DEBUG_CHANNEL(adpcm);
39
40 /***********************************************************************
41 * ADPCM_drvOpen
42 */
43 static LRESULT ADPCM_drvOpen(LPCSTR str)
44 {
45 return 1;
46 }
47
48 /***********************************************************************
49 * ADPCM_drvClose
50 */
51 static LRESULT ADPCM_drvClose(DWORD_PTR dwDevID)
52 {
53 return 1;
54 }
55
56 typedef struct tagAcmAdpcmData
57 {
58 void (*convert)(const ACMDRVSTREAMINSTANCE *adsi,
59 const unsigned char*, LPDWORD, unsigned char*, LPDWORD);
60 } AcmAdpcmData;
61
62 /* table to list all supported formats... those are the basic ones. this
63 * also helps given a unique index to each of the supported formats
64 */
65 typedef struct
66 {
67 int nChannels;
68 int nBits;
69 int rate;
70 } Format;
71
72 static const Format PCM_Formats[] =
73 {
74 {1, 8, 8000}, {2, 8, 8000}, {1, 16, 8000}, {2, 16, 8000},
75 {1, 8, 11025}, {2, 8, 11025}, {1, 16, 11025}, {2, 16, 11025},
76 {1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050},
77 {1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100},
78 };
79
80 static const Format ADPCM_Formats[] =
81 {
82 {1, 4, 8000}, {2, 4, 8000}, {1, 4, 11025}, {2, 4, 11025},
83 {1, 4, 22050}, {2, 4, 22050}, {1, 4, 44100}, {2, 4, 44100},
84 };
85
86 static int MS_Delta[] =
87 {
88 230, 230, 230, 230, 307, 409, 512, 614,
89 768, 614, 512, 409, 307, 230, 230, 230
90 };
91
92
93 static ADPCMCOEFSET MSADPCM_CoeffSet[] =
94 {
95 {256, 0}, {512, -256}, {0, 0}, {192, 64}, {240, 0}, {460, -208}, {392, -232}
96 };
97
98 /***********************************************************************
99 * ADPCM_GetFormatIndex
100 */
101 static DWORD ADPCM_GetFormatIndex(const WAVEFORMATEX* wfx)
102 {
103 int i, hi;
104 const Format* fmts;
105
106 switch (wfx->wFormatTag)
107 {
108 case WAVE_FORMAT_PCM:
109 hi = ARRAY_SIZE(PCM_Formats);
110 fmts = PCM_Formats;
111 break;
112 case WAVE_FORMAT_ADPCM:
113 hi = ARRAY_SIZE(ADPCM_Formats);
114 fmts = ADPCM_Formats;
115 break;
116 default:
117 return 0xFFFFFFFF;
118 }
119
120 for (i = 0; i < hi; i++)
121 {
122 if (wfx->nChannels == fmts[i].nChannels &&
123 wfx->nSamplesPerSec == fmts[i].rate &&
124 wfx->wBitsPerSample == fmts[i].nBits)
125 return i;
126 }
127
128 switch (wfx->wFormatTag)
129 {
130 case WAVE_FORMAT_PCM:
131 if(3 > wfx->nChannels &&
132 wfx->nChannels > 0 &&
133 wfx->nAvgBytesPerSec == 2 * wfx->nSamplesPerSec * wfx->nChannels &&
134 wfx->nBlockAlign == 2 * wfx->nChannels &&
135 wfx->wBitsPerSample == 16)
136 return hi;
137 break;
138 case WAVE_FORMAT_ADPCM:
139 if(3 > wfx->nChannels &&
140 wfx->nChannels > 0 &&
141 wfx->wBitsPerSample == 4 &&
142 wfx->cbSize == 32)
143 return hi;
144 break;
145 }
146
147 return 0xFFFFFFFF;
148 }
149
150 static void init_wfx_adpcm(ADPCMWAVEFORMAT* awfx)
151 {
152 register WAVEFORMATEX* pwfx = &awfx->wfx;
153
154 /* we assume wFormatTag, nChannels, nSamplesPerSec and wBitsPerSample
155 * have been initialized... */
156
157 if (pwfx->wFormatTag != WAVE_FORMAT_ADPCM) {FIXME("wrong FT\n"); return;}
158 if (ADPCM_GetFormatIndex(pwfx) == 0xFFFFFFFF) {FIXME("wrong fmt\n"); return;}
159
160 switch (pwfx->nSamplesPerSec)
161 {
162 case 8000: pwfx->nBlockAlign = 256 * pwfx->nChannels; break;
163 case 11025: pwfx->nBlockAlign = 256 * pwfx->nChannels; break;
164 case 22050: pwfx->nBlockAlign = 512 * pwfx->nChannels; break;
165 case 44100: pwfx->nBlockAlign = 1024 * pwfx->nChannels; break;
166 default: break;
167 }
168 pwfx->cbSize = 2 * sizeof(WORD) + 7 * sizeof(ADPCMCOEFSET);
169 /* 7 is the size of the block head (which contains two samples) */
170
171 awfx->wSamplesPerBlock = pwfx->nBlockAlign * 2 / pwfx->nChannels - 12;
172 pwfx->nAvgBytesPerSec = (pwfx->nSamplesPerSec * pwfx->nBlockAlign) / awfx->wSamplesPerBlock;
173 awfx->wNumCoef = 7;
174 memcpy(awfx->aCoef, MSADPCM_CoeffSet, 7 * sizeof(ADPCMCOEFSET));
175 }
176
177 /***********************************************************************
178 * R16
179 *
180 * Read a 16 bit sample (correctly handles endianness)
181 */
182 static inline short R16(const unsigned char* src)
183 {
184 return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8));
185 }
186
187 /***********************************************************************
188 * W16
189 *
190 * Write a 16 bit sample (correctly handles endianness)
191 */
192 static inline void W16(unsigned char* dst, short s)
193 {
194 dst[0] = LOBYTE(s);
195 dst[1] = HIBYTE(s);
196 }
197
198 static inline void clamp_sample(int* sample)
199 {
200 if (*sample < -32768) *sample = -32768;
201 if (*sample > 32767) *sample = 32767;
202 }
203
204 static inline void process_nibble(unsigned nibble, int* idelta,
205 int* sample1, int* sample2,
206 const ADPCMCOEFSET* coeff)
207 {
208 int sample;
209 int snibble;
210
211 /* nibble is in fact a signed 4 bit integer => propagate sign if needed */
212 snibble = (nibble & 0x08) ? (nibble - 16) : nibble;
213 sample = ((*sample1 * coeff->iCoef1) + (*sample2 * coeff->iCoef2)) / 256 +
214 snibble * *idelta;
215 clamp_sample(&sample);
216
217 *sample2 = *sample1;
218 *sample1 = sample;
219 *idelta = ((MS_Delta[nibble] * *idelta) / 256);
220 if (*idelta < 16) *idelta = 16;
221 }
222
223 static inline unsigned char C168(short s)
224 {
225 return HIBYTE(s) ^ (unsigned char)0x80;
226 }
227
228 static void cvtSSms16K(const ACMDRVSTREAMINSTANCE *adsi,
229 const unsigned char* src, LPDWORD nsrc,
230 unsigned char* dst, LPDWORD ndst)
231 {
232 int ideltaL, ideltaR;
233 int sample1L, sample2L;
234 int sample1R, sample2R;
235 ADPCMCOEFSET coeffL, coeffR;
236 int nsamp;
237 int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
238 DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign,
239 *ndst / (nsamp_blk * adsi->pwfxDst->nBlockAlign));
240
241 *nsrc = nblock * adsi->pwfxSrc->nBlockAlign;
242 *ndst = nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
243
244 nsamp_blk -= 2; /* see below for samples from block head */
245 for (; nblock > 0; nblock--)
246 {
247 const unsigned char* in_src = src;
248
249 /* Catch a problem from Tomb Raider III (bug 21000) where it passes
250 * invalid data after a valid sequence of blocks */
251 if (*src > 6 || *(src + 1) > 6)
252 {
253 /* Recalculate the amount of used output buffer. We are not changing
254 * nsrc, let's assume the bad data was parsed */
255 *ndst -= nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
256 WARN("Invalid ADPCM data, stopping conversion\n");
257 break;
258 }
259 coeffL = MSADPCM_CoeffSet[*src++];
260 coeffR = MSADPCM_CoeffSet[*src++];
261
262 ideltaL = R16(src); src += 2;
263 ideltaR = R16(src); src += 2;
264 sample1L = R16(src); src += 2;
265 sample1R = R16(src); src += 2;
266 sample2L = R16(src); src += 2;
267 sample2R = R16(src); src += 2;
268
269 if(adsi->pwfxDst->wBitsPerSample == 8){
270 /* store samples from block head */
271 *dst = C168(sample2L); ++dst;
272 *dst = C168(sample2R); ++dst;
273 *dst = C168(sample1L); ++dst;
274 *dst = C168(sample1R); ++dst;
275
276 for (nsamp = nsamp_blk; nsamp > 0; nsamp--)
277 {
278 process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL);
279 *dst = C168(sample1L); ++dst;
280 process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR);
281 *dst = C168(sample1R); ++dst;
282 }
283 }else if(adsi->pwfxDst->wBitsPerSample == 16){
284 /* store samples from block head */
285 W16(dst, sample2L); dst += 2;
286 W16(dst, sample2R); dst += 2;
287 W16(dst, sample1L); dst += 2;
288 W16(dst, sample1R); dst += 2;
289
290 for (nsamp = nsamp_blk; nsamp > 0; nsamp--)
291 {
292 process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL);
293 W16(dst, sample1L); dst += 2;
294 process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR);
295 W16(dst, sample1R); dst += 2;
296 }
297 }
298 src = in_src + adsi->pwfxSrc->nBlockAlign;
299 }
300 }
301
302 static void cvtMMms16K(const ACMDRVSTREAMINSTANCE *adsi,
303 const unsigned char* src, LPDWORD nsrc,
304 unsigned char* dst, LPDWORD ndst)
305 {
306 int idelta;
307 int sample1, sample2;
308 ADPCMCOEFSET coeff;
309 int nsamp;
310 int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
311 DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign,
312 *ndst / (nsamp_blk * adsi->pwfxDst->nBlockAlign));
313
314 *nsrc = nblock * adsi->pwfxSrc->nBlockAlign;
315 *ndst = nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
316
317 nsamp_blk -= 2; /* see below for samples from block head */
318 for (; nblock > 0; nblock--)
319 {
320 const unsigned char* in_src = src;
321
322 assert(*src <= 6);
323 coeff = MSADPCM_CoeffSet[*src++];
324
325 idelta = R16(src); src += 2;
326 sample1 = R16(src); src += 2;
327 sample2 = R16(src); src += 2;
328
329 /* store samples from block head */
330 if(adsi->pwfxDst->wBitsPerSample == 8){
331 *dst = C168(sample2); ++dst;
332 *dst = C168(sample1); ++dst;
333
334 for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
335 {
336 process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff);
337 *dst = C168(sample1); ++dst;
338 process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff);
339 *dst = C168(sample1); ++dst;
340 }
341 }else if(adsi->pwfxDst->wBitsPerSample == 16){
342 W16(dst, sample2); dst += 2;
343 W16(dst, sample1); dst += 2;
344
345 for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
346 {
347 process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff);
348 W16(dst, sample1); dst += 2;
349 process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff);
350 W16(dst, sample1); dst += 2;
351 }
352 }
353
354 src = in_src + adsi->pwfxSrc->nBlockAlign;
355 }
356 }
357
358 #if 0
359 static void cvtSS16msK(PACMDRVSTREAMINSTANCE adsi,
360 const unsigned char* src, LPDWORD nsrc,
361 unsigned char* dst, LPDWORD ndst)
362 {
363 }
364
365 static void cvtMM16msK(PACMDRVSTREAMINSTANCE adsi,
366 const unsigned char* src, LPDWORD nsrc,
367 unsigned char* dst, LPDWORD ndst)
368 {
369 }
370 #endif
371
372 /***********************************************************************
373 * ADPCM_DriverDetails
374 *
375 */
376 static LRESULT ADPCM_DriverDetails(PACMDRIVERDETAILSW add)
377 {
378 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
379 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
380 add->wMid = MM_MICROSOFT;
381 add->wPid = MM_MSFT_ACM_MSADPCM;
382 add->vdwACM = 0x01000000;
383 add->vdwDriver = 0x01000000;
384 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
385 add->cFormatTags = 2; /* PCM, MS ADPCM */
386 add->cFilterTags = 0;
387 add->hicon = NULL;
388 MultiByteToWideChar( CP_ACP, 0, "MS-ADPCM", -1,
389 add->szShortName, ARRAY_SIZE( add->szShortName ));
390 MultiByteToWideChar( CP_ACP, 0, "Wine MS ADPCM converter", -1,
391 add->szLongName, ARRAY_SIZE( add->szLongName ));
392 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
393 add->szCopyright, ARRAY_SIZE( add->szCopyright ));
394 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
395 add->szLicensing, ARRAY_SIZE( add->szLicensing ));
396 add->szFeatures[0] = 0;
397
398 return MMSYSERR_NOERROR;
399 }
400
401 /***********************************************************************
402 * ADPCM_FormatTagDetails
403 *
404 */
405 static LRESULT ADPCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
406 {
407 switch (dwQuery)
408 {
409 case ACM_FORMATTAGDETAILSF_INDEX:
410 if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
411 break;
412 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
413 if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
414 {
415 aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_ADPCM is bigger than PCM */
416 break;
417 }
418 /* fall through */
419 case ACM_FORMATTAGDETAILSF_FORMATTAG:
420 switch (aftd->dwFormatTag)
421 {
422 case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
423 case WAVE_FORMAT_ADPCM: aftd->dwFormatTagIndex = 1; break;
424 default: return ACMERR_NOTPOSSIBLE;
425 }
426 break;
427 default:
428 WARN("Unsupported query %08x\n", dwQuery);
429 return MMSYSERR_NOTSUPPORTED;
430 }
431
432 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
433 switch (aftd->dwFormatTagIndex)
434 {
435 case 0:
436 aftd->dwFormatTag = WAVE_FORMAT_PCM;
437 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
438 aftd->cStandardFormats = ARRAY_SIZE(PCM_Formats);
439 lstrcpyW(aftd->szFormatTag, L"PCM");
440 break;
441 case 1:
442 aftd->dwFormatTag = WAVE_FORMAT_ADPCM;
443 aftd->cbFormatSize = sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET);
444 aftd->cStandardFormats = ARRAY_SIZE(ADPCM_Formats);
445 lstrcpyW(aftd->szFormatTag, L"Microsoft ADPCM");
446 break;
447 }
448 return MMSYSERR_NOERROR;
449 }
450
451 /***********************************************************************
452 * ADPCM_FormatDetails
453 *
454 */
455 static LRESULT ADPCM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
456 {
457 switch (dwQuery)
458 {
459 case ACM_FORMATDETAILSF_FORMAT:
460 if (ADPCM_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
461 break;
462 case ACM_FORMATDETAILSF_INDEX:
463 afd->pwfx->wFormatTag = afd->dwFormatTag;
464 switch (afd->dwFormatTag)
465 {
466 case WAVE_FORMAT_PCM:
467 if (afd->dwFormatIndex >= ARRAY_SIZE(PCM_Formats)) return ACMERR_NOTPOSSIBLE;
468 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
469 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
470 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
471 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
472 * afd->pwfx->cbSize = 0;
473 */
474 afd->pwfx->nBlockAlign =
475 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
476 afd->pwfx->nAvgBytesPerSec =
477 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
478 break;
479 case WAVE_FORMAT_ADPCM:
480 if (afd->dwFormatIndex >= ARRAY_SIZE(ADPCM_Formats)) return ACMERR_NOTPOSSIBLE;
481 if (afd->cbwfx < sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET))
482 return ACMERR_NOTPOSSIBLE;
483 afd->pwfx->nChannels = ADPCM_Formats[afd->dwFormatIndex].nChannels;
484 afd->pwfx->nSamplesPerSec = ADPCM_Formats[afd->dwFormatIndex].rate;
485 afd->pwfx->wBitsPerSample = ADPCM_Formats[afd->dwFormatIndex].nBits;
486 init_wfx_adpcm((ADPCMWAVEFORMAT*)afd->pwfx);
487 break;
488 default:
489 WARN("Unsupported tag %08x\n", afd->dwFormatTag);
490 return MMSYSERR_INVALPARAM;
491 }
492 break;
493 default:
494 WARN("Unsupported query %08x\n", dwQuery);
495 return MMSYSERR_NOTSUPPORTED;
496 }
497 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
498 afd->szFormat[0] = 0; /* let MSACM format this for us... */
499
500 return MMSYSERR_NOERROR;
501 }
502
503 /***********************************************************************
504 * ADPCM_FormatSuggest
505 *
506 */
507 static LRESULT ADPCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
508 {
509 /* some tests ... */
510 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
511 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
512 adfs->pwfxSrc->wFormatTag == adfs->pwfxDst->wFormatTag ||
513 ADPCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
514 /* FIXME: should do those tests against the real size (according to format tag */
515
516 /* If no suggestion for destination, then copy source value */
517 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
518 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
519 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
520 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
521
522 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
523 {
524 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
525 adfs->pwfxDst->wBitsPerSample = 4;
526 else
527 adfs->pwfxDst->wBitsPerSample = 16;
528 }
529 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
530 {
531 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
532 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_ADPCM;
533 else
534 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
535 }
536
537 /* recompute other values */
538 switch (adfs->pwfxDst->wFormatTag)
539 {
540 case WAVE_FORMAT_PCM:
541 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
542 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
543 /* check if result is ok */
544 if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
545 break;
546 case WAVE_FORMAT_ADPCM:
547 if (adfs->cbwfxDst < sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET))
548 return ACMERR_NOTPOSSIBLE;
549 init_wfx_adpcm((ADPCMWAVEFORMAT*)adfs->pwfxDst);
550 /* check if result is ok */
551 if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
552 break;
553 default:
554 return ACMERR_NOTPOSSIBLE;
555 }
556
557 return MMSYSERR_NOERROR;
558 }
559
560 /***********************************************************************
561 * ADPCM_Reset
562 *
563 */
564 static void ADPCM_Reset(PACMDRVSTREAMINSTANCE adsi, AcmAdpcmData* aad)
565 {
566 }
567
568 /***********************************************************************
569 * ADPCM_StreamOpen
570 *
571 */
572 static LRESULT ADPCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
573 {
574 AcmAdpcmData* aad;
575
576 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
577
578 if (ADPCM_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
579 ADPCM_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
580 return ACMERR_NOTPOSSIBLE;
581
582 aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmAdpcmData));
583 if (aad == 0) return MMSYSERR_NOMEM;
584
585 adsi->dwDriver = (DWORD_PTR)aad;
586
587 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
588 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
589 {
590 goto theEnd;
591 }
592 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
593 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
594 {
595 /* resampling or mono <=> stereo not available */
596 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
597 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels)
598 goto theEnd;
599
600 #if 0
601 {
602 unsigned int nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
603 FIXME("spb=%u\n", nspb);
604
605 /* we check that in a block, after the header, samples are present on
606 * 4-sample packet pattern
607 * we also check that the block alignment is bigger than the expected size
608 */
609 if (((nspb - 1) & 3) != 0) goto theEnd;
610 if ((((nspb - 1) / 2) + 4) * adsi->pwfxSrc->nChannels < adsi->pwfxSrc->nBlockAlign)
611 goto theEnd;
612 }
613 #endif
614
615 /* adpcm decoding... */
616 if (adsi->pwfxDst->nChannels == 2)
617 aad->convert = cvtSSms16K;
618 else if (adsi->pwfxDst->nChannels == 1)
619 aad->convert = cvtMMms16K;
620 }
621 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
622 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
623 {
624 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
625 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
626 adsi->pwfxSrc->wBitsPerSample != 16)
627 goto theEnd;
628 #if 0
629 nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock;
630 FIXME("spb=%u\n", nspb);
631
632 /* we check that in a block, after the header, samples are present on
633 * 4-sample packet pattern
634 * we also check that the block alignment is bigger than the expected size
635 */
636 if (((nspb - 1) & 3) != 0) goto theEnd;
637 if ((((nspb - 1) / 2) + 4) * adsi->pwfxDst->nChannels < adsi->pwfxDst->nBlockAlign)
638 goto theEnd;
639 #endif
640 #if 0
641 /* adpcm coding... */
642 if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 2)
643 aad->convert = cvtSS16msK;
644 if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 1)
645 aad->convert = cvtMM16msK;
646 #endif
647 FIXME("We don't support encoding yet\n");
648 goto theEnd;
649 }
650 else goto theEnd;
651 ADPCM_Reset(adsi, aad);
652
653 return MMSYSERR_NOERROR;
654
655 theEnd:
656 HeapFree(GetProcessHeap(), 0, aad);
657 adsi->dwDriver = 0L;
658 return MMSYSERR_NOTSUPPORTED;
659 }
660
661 /***********************************************************************
662 * ADPCM_StreamClose
663 *
664 */
665 static LRESULT ADPCM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
666 {
667 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
668 return MMSYSERR_NOERROR;
669 }
670
671 /***********************************************************************
672 * ADPCM_StreamSize
673 *
674 */
675 static LRESULT ADPCM_StreamSize(const ACMDRVSTREAMINSTANCE *adsi, PACMDRVSTREAMSIZE adss)
676 {
677 DWORD nblocks;
678 WORD wSamplesPerBlock;
679 /* wSamplesPerBlock formula comes from MSDN ADPCMWAVEFORMAT page.*/
680 switch (adss->fdwSize)
681 {
682 case ACM_STREAMSIZEF_DESTINATION:
683 /* cbDstLength => cbSrcLength */
684 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
685 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
686 {
687 wSamplesPerBlock = adsi->pwfxDst->nBlockAlign * 2 / adsi->pwfxDst->nChannels - 12;
688 nblocks = adss->cbDstLength / adsi->pwfxDst->nBlockAlign;
689 if (nblocks == 0)
690 return ACMERR_NOTPOSSIBLE;
691 adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock;
692 }
693 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
694 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
695 {
696 wSamplesPerBlock = adsi->pwfxSrc->nBlockAlign * 2 / adsi->pwfxSrc->nChannels - 12;
697 nblocks = adss->cbDstLength / (adsi->pwfxDst->nBlockAlign * wSamplesPerBlock);
698 if (nblocks == 0)
699 return ACMERR_NOTPOSSIBLE;
700 adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign;
701 }
702 else
703 {
704 return MMSYSERR_NOTSUPPORTED;
705 }
706 break;
707 case ACM_STREAMSIZEF_SOURCE:
708 /* cbSrcLength => cbDstLength */
709 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
710 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
711 {
712 wSamplesPerBlock = adsi->pwfxDst->nBlockAlign * 2 / adsi->pwfxDst->nChannels - 12;
713 nblocks = adss->cbSrcLength / (adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock);
714 if (nblocks == 0)
715 return ACMERR_NOTPOSSIBLE;
716 if (adss->cbSrcLength % (adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock))
717 /* Round block count up. */
718 nblocks++;
719 adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign;
720 }
721 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
722 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
723 {
724 wSamplesPerBlock = adsi->pwfxSrc->nBlockAlign * 2 / adsi->pwfxSrc->nChannels - 12;
725 nblocks = adss->cbSrcLength / adsi->pwfxSrc->nBlockAlign;
726 if (nblocks == 0)
727 return ACMERR_NOTPOSSIBLE;
728 if (adss->cbSrcLength % adsi->pwfxSrc->nBlockAlign)
729 /* Round block count up. */
730 nblocks++;
731 adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign * wSamplesPerBlock;
732 }
733 else
734 {
735 return MMSYSERR_NOTSUPPORTED;
736 }
737 break;
738 default:
739 WARN("Unsupported query %08x\n", adss->fdwSize);
740 return MMSYSERR_NOTSUPPORTED;
741 }
742 return MMSYSERR_NOERROR;
743 }
744
745 /***********************************************************************
746 * ADPCM_StreamConvert
747 *
748 */
749 static LRESULT ADPCM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
750 {
751 AcmAdpcmData* aad = (AcmAdpcmData*)adsi->dwDriver;
752 DWORD nsrc = adsh->cbSrcLength;
753 DWORD ndst = adsh->cbDstLength;
754
755 if (adsh->fdwConvert &
756 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
757 ACM_STREAMCONVERTF_END|
758 ACM_STREAMCONVERTF_START))
759 {
760 FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
761 }
762 /* ACM_STREAMCONVERTF_BLOCKALIGN
763 * currently all conversions are block aligned, so do nothing for this flag
764 * ACM_STREAMCONVERTF_END
765 * no pending data, so do nothing for this flag
766 */
767 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
768 {
769 ADPCM_Reset(adsi, aad);
770 }
771
772 aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
773 adsh->cbSrcLengthUsed = nsrc;
774 adsh->cbDstLengthUsed = ndst;
775
776 return MMSYSERR_NOERROR;
777 }
778
779 /**************************************************************************
780 * ADPCM_DriverProc [exported]
781 */
782 LRESULT CALLBACK ADPCM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
783 LPARAM dwParam1, LPARAM dwParam2)
784 {
785 TRACE("(%08lx %p %04x %08lx %08lx);\n",
786 dwDevID, hDriv, wMsg, dwParam1, dwParam2);
787
788 switch (wMsg)
789 {
790 case DRV_LOAD: return 1;
791 case DRV_FREE: return 1;
792 case DRV_OPEN: return ADPCM_drvOpen((LPSTR)dwParam1);
793 case DRV_CLOSE: return ADPCM_drvClose(dwDevID);
794 case DRV_ENABLE: return 1;
795 case DRV_DISABLE: return 1;
796 case DRV_QUERYCONFIGURE: return 1;
797 case DRV_CONFIGURE: MessageBoxA(0, "MSACM MS ADPCM filter !", "Wine Driver", MB_OK); return 1;
798 case DRV_INSTALL: return DRVCNF_RESTART;
799 case DRV_REMOVE: return DRVCNF_RESTART;
800
801 case ACMDM_DRIVER_NOTIFY:
802 /* no caching from other ACM drivers is done so far */
803 return MMSYSERR_NOERROR;
804
805 case ACMDM_DRIVER_DETAILS:
806 return ADPCM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
807
808 case ACMDM_FORMATTAG_DETAILS:
809 return ADPCM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
810
811 case ACMDM_FORMAT_DETAILS:
812 return ADPCM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
813
814 case ACMDM_FORMAT_SUGGEST:
815 return ADPCM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
816
817 case ACMDM_STREAM_OPEN:
818 return ADPCM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
819
820 case ACMDM_STREAM_CLOSE:
821 return ADPCM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
822
823 case ACMDM_STREAM_SIZE:
824 return ADPCM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
825
826 case ACMDM_STREAM_CONVERT:
827 return ADPCM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
828
829 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
830 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
831 /* this converter is not a hardware driver */
832 case ACMDM_FILTERTAG_DETAILS:
833 case ACMDM_FILTER_DETAILS:
834 /* this converter is not a filter */
835 case ACMDM_STREAM_RESET:
836 /* only needed for asynchronous driver... we aren't, so just say it */
837 return MMSYSERR_NOTSUPPORTED;
838 case ACMDM_STREAM_PREPARE:
839 case ACMDM_STREAM_UNPREPARE:
840 /* nothing special to do here... so don't do anything */
841 return MMSYSERR_NOERROR;
842
843 default:
844 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
845 }
846 }
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