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mshtml: Added IHTMLDocument7::getElementsByClassName implementation.
[wine.git] / dlls / msadp32.acm / msadp32.c
blob24e0c6a72b10c525b8fa49d9dcede9d34d31422c
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 #define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
87 #define NUM_ADPCM_FORMATS (sizeof(ADPCM_Formats) / sizeof(ADPCM_Formats[0]))
88
89 static int MS_Delta[] =
90 {
91 230, 230, 230, 230, 307, 409, 512, 614,
92 768, 614, 512, 409, 307, 230, 230, 230
93 };
94
95
96 static ADPCMCOEFSET MSADPCM_CoeffSet[] =
97 {
98 {256, 0}, {512, -256}, {0, 0}, {192, 64}, {240, 0}, {460, -208}, {392, -232}
99 };
100
101 /***********************************************************************
102 * ADPCM_GetFormatIndex
103 */
104 static DWORD ADPCM_GetFormatIndex(const WAVEFORMATEX* wfx)
105 {
106 int i, hi;
107 const Format* fmts;
108
109 switch (wfx->wFormatTag)
110 {
111 case WAVE_FORMAT_PCM:
112 hi = NUM_PCM_FORMATS;
113 fmts = PCM_Formats;
114 break;
115 case WAVE_FORMAT_ADPCM:
116 hi = NUM_ADPCM_FORMATS;
117 fmts = ADPCM_Formats;
118 break;
119 default:
120 return 0xFFFFFFFF;
121 }
122
123 for (i = 0; i < hi; i++)
124 {
125 if (wfx->nChannels == fmts[i].nChannels &&
126 wfx->nSamplesPerSec == fmts[i].rate &&
127 wfx->wBitsPerSample == fmts[i].nBits)
128 return i;
129 }
130
131 switch (wfx->wFormatTag)
132 {
133 case WAVE_FORMAT_PCM:
134 if(3 > wfx->nChannels &&
135 wfx->nChannels > 0 &&
136 wfx->nAvgBytesPerSec == 2 * wfx->nSamplesPerSec * wfx->nChannels &&
137 wfx->nBlockAlign == 2 * wfx->nChannels &&
138 wfx->wBitsPerSample == 16)
139 return hi;
140 break;
141 case WAVE_FORMAT_ADPCM:
142 if(3 > wfx->nChannels &&
143 wfx->nChannels > 0 &&
144 wfx->wBitsPerSample == 4 &&
145 wfx->cbSize == 32)
146 return hi;
147 break;
148 }
149
150 return 0xFFFFFFFF;
151 }
152
153 static void init_wfx_adpcm(ADPCMWAVEFORMAT* awfx)
154 {
155 register WAVEFORMATEX* pwfx = &awfx->wfx;
156
157 /* we assume wFormatTag, nChannels, nSamplesPerSec and wBitsPerSample
158 * have been initialized... */
159
160 if (pwfx->wFormatTag != WAVE_FORMAT_ADPCM) {FIXME("wrong FT\n"); return;}
161 if (ADPCM_GetFormatIndex(pwfx) == 0xFFFFFFFF) {FIXME("wrong fmt\n"); return;}
162
163 switch (pwfx->nSamplesPerSec)
164 {
165 case 8000: pwfx->nBlockAlign = 256 * pwfx->nChannels; break;
166 case 11025: pwfx->nBlockAlign = 256 * pwfx->nChannels; break;
167 case 22050: pwfx->nBlockAlign = 512 * pwfx->nChannels; break;
168 case 44100: pwfx->nBlockAlign = 1024 * pwfx->nChannels; break;
169 default: break;
170 }
171 pwfx->cbSize = 2 * sizeof(WORD) + 7 * sizeof(ADPCMCOEFSET);
172 /* 7 is the size of the block head (which contains two samples) */
173
174 awfx->wSamplesPerBlock = pwfx->nBlockAlign * 2 / pwfx->nChannels - 12;
175 pwfx->nAvgBytesPerSec = (pwfx->nSamplesPerSec * pwfx->nBlockAlign) / awfx->wSamplesPerBlock;
176 awfx->wNumCoef = 7;
177 memcpy(awfx->aCoef, MSADPCM_CoeffSet, 7 * sizeof(ADPCMCOEFSET));
178 }
179
180 /***********************************************************************
181 * R16
182 *
183 * Read a 16 bit sample (correctly handles endianness)
184 */
185 static inline short R16(const unsigned char* src)
186 {
187 return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8));
188 }
189
190 /***********************************************************************
191 * W16
192 *
193 * Write a 16 bit sample (correctly handles endianness)
194 */
195 static inline void W16(unsigned char* dst, short s)
196 {
197 dst[0] = LOBYTE(s);
198 dst[1] = HIBYTE(s);
199 }
200
201 static inline void clamp_sample(int* sample)
202 {
203 if (*sample < -32768) *sample = -32768;
204 if (*sample > 32767) *sample = 32767;
205 }
206
207 static inline void process_nibble(unsigned nibble, int* idelta,
208 int* sample1, int* sample2,
209 const ADPCMCOEFSET* coeff)
210 {
211 int sample;
212 int snibble;
213
214 /* nibble is in fact a signed 4 bit integer => propagate sign if needed */
215 snibble = (nibble & 0x08) ? (nibble - 16) : nibble;
216 sample = ((*sample1 * coeff->iCoef1) + (*sample2 * coeff->iCoef2)) / 256 +
217 snibble * *idelta;
218 clamp_sample(&sample);
219
220 *sample2 = *sample1;
221 *sample1 = sample;
222 *idelta = ((MS_Delta[nibble] * *idelta) / 256);
223 if (*idelta < 16) *idelta = 16;
224 }
225
226 static inline unsigned char C168(short s)
227 {
228 return HIBYTE(s) ^ (unsigned char)0x80;
229 }
230
231 static void cvtSSms16K(const ACMDRVSTREAMINSTANCE *adsi,
232 const unsigned char* src, LPDWORD nsrc,
233 unsigned char* dst, LPDWORD ndst)
234 {
235 int ideltaL, ideltaR;
236 int sample1L, sample2L;
237 int sample1R, sample2R;
238 ADPCMCOEFSET coeffL, coeffR;
239 int nsamp;
240 int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
241 DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign,
242 *ndst / (nsamp_blk * adsi->pwfxDst->nBlockAlign));
243
244 *nsrc = nblock * adsi->pwfxSrc->nBlockAlign;
245 *ndst = nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
246
247 nsamp_blk -= 2; /* see below for samples from block head */
248 for (; nblock > 0; nblock--)
249 {
250 const unsigned char* in_src = src;
251
252 /* Catch a problem from Tomb Raider III (bug 21000) where it passes
253 * invalid data after a valid sequence of blocks */
254 if (*src > 6 || *(src + 1) > 6)
255 {
256 /* Recalculate the amount of used output buffer. We are not changing
257 * nsrc, let's assume the bad data was parsed */
258 *ndst -= nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
259 WARN("Invalid ADPCM data, stopping conversion\n");
260 break;
261 }
262 coeffL = MSADPCM_CoeffSet[*src++];
263 coeffR = MSADPCM_CoeffSet[*src++];
264
265 ideltaL = R16(src); src += 2;
266 ideltaR = R16(src); src += 2;
267 sample1L = R16(src); src += 2;
268 sample1R = R16(src); src += 2;
269 sample2L = R16(src); src += 2;
270 sample2R = R16(src); src += 2;
271
272 if(adsi->pwfxDst->wBitsPerSample == 8){
273 /* store samples from block head */
274 *dst = C168(sample2L); ++dst;
275 *dst = C168(sample2R); ++dst;
276 *dst = C168(sample1L); ++dst;
277 *dst = C168(sample1R); ++dst;
278
279 for (nsamp = nsamp_blk; nsamp > 0; nsamp--)
280 {
281 process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL);
282 *dst = C168(sample1L); ++dst;
283 process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR);
284 *dst = C168(sample1R); ++dst;
285 }
286 }else if(adsi->pwfxDst->wBitsPerSample == 16){
287 /* store samples from block head */
288 W16(dst, sample2L); dst += 2;
289 W16(dst, sample2R); dst += 2;
290 W16(dst, sample1L); dst += 2;
291 W16(dst, sample1R); dst += 2;
292
293 for (nsamp = nsamp_blk; nsamp > 0; nsamp--)
294 {
295 process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL);
296 W16(dst, sample1L); dst += 2;
297 process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR);
298 W16(dst, sample1R); dst += 2;
299 }
300 }
301 src = in_src + adsi->pwfxSrc->nBlockAlign;
302 }
303 }
304
305 static void cvtMMms16K(const ACMDRVSTREAMINSTANCE *adsi,
306 const unsigned char* src, LPDWORD nsrc,
307 unsigned char* dst, LPDWORD ndst)
308 {
309 int idelta;
310 int sample1, sample2;
311 ADPCMCOEFSET coeff;
312 int nsamp;
313 int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
314 DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign,
315 *ndst / (nsamp_blk * adsi->pwfxDst->nBlockAlign));
316
317 *nsrc = nblock * adsi->pwfxSrc->nBlockAlign;
318 *ndst = nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
319
320 nsamp_blk -= 2; /* see below for samples from block head */
321 for (; nblock > 0; nblock--)
322 {
323 const unsigned char* in_src = src;
324
325 assert(*src <= 6);
326 coeff = MSADPCM_CoeffSet[*src++];
327
328 idelta = R16(src); src += 2;
329 sample1 = R16(src); src += 2;
330 sample2 = R16(src); src += 2;
331
332 /* store samples from block head */
333 if(adsi->pwfxDst->wBitsPerSample == 8){
334 *dst = C168(sample2); ++dst;
335 *dst = C168(sample1); ++dst;
336
337 for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
338 {
339 process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff);
340 *dst = C168(sample1); ++dst;
341 process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff);
342 *dst = C168(sample1); ++dst;
343 }
344 }else if(adsi->pwfxDst->wBitsPerSample == 16){
345 W16(dst, sample2); dst += 2;
346 W16(dst, sample1); dst += 2;
347
348 for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
349 {
350 process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff);
351 W16(dst, sample1); dst += 2;
352 process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff);
353 W16(dst, sample1); dst += 2;
354 }
355 }
356
357 src = in_src + adsi->pwfxSrc->nBlockAlign;
358 }
359 }
360
361 #if 0
362 static void cvtSS16msK(PACMDRVSTREAMINSTANCE adsi,
363 const unsigned char* src, LPDWORD nsrc,
364 unsigned char* dst, LPDWORD ndst)
365 {
366 }
367
368 static void cvtMM16msK(PACMDRVSTREAMINSTANCE adsi,
369 const unsigned char* src, LPDWORD nsrc,
370 unsigned char* dst, LPDWORD ndst)
371 {
372 }
373 #endif
374
375 /***********************************************************************
376 * ADPCM_DriverDetails
377 *
378 */
379 static LRESULT ADPCM_DriverDetails(PACMDRIVERDETAILSW add)
380 {
381 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
382 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
383 add->wMid = MM_MICROSOFT;
384 add->wPid = MM_MSFT_ACM_MSADPCM;
385 add->vdwACM = 0x01000000;
386 add->vdwDriver = 0x01000000;
387 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
388 add->cFormatTags = 2; /* PCM, MS ADPCM */
389 add->cFilterTags = 0;
390 add->hicon = NULL;
391 MultiByteToWideChar( CP_ACP, 0, "MS-ADPCM", -1,
392 add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
393 MultiByteToWideChar( CP_ACP, 0, "Wine MS ADPCM converter", -1,
394 add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
395 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
396 add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
397 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
398 add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
399 add->szFeatures[0] = 0;
400
401 return MMSYSERR_NOERROR;
402 }
403
404 /***********************************************************************
405 * ADPCM_FormatTagDetails
406 *
407 */
408 static LRESULT ADPCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
409 {
410 static const WCHAR szPcm[]={'P','C','M',0};
411 static const WCHAR szMsAdPcm[]={'M','i','c','r','o','s','o','f','t',' ','A','D','P','C','M',0};
412
413 switch (dwQuery)
414 {
415 case ACM_FORMATTAGDETAILSF_INDEX:
416 if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
417 break;
418 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
419 if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
420 {
421 aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_ADPCM is bigger than PCM */
422 break;
423 }
424 /* fall through */
425 case ACM_FORMATTAGDETAILSF_FORMATTAG:
426 switch (aftd->dwFormatTag)
427 {
428 case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
429 case WAVE_FORMAT_ADPCM: aftd->dwFormatTagIndex = 1; break;
430 default: return ACMERR_NOTPOSSIBLE;
431 }
432 break;
433 default:
434 WARN("Unsupported query %08x\n", dwQuery);
435 return MMSYSERR_NOTSUPPORTED;
436 }
437
438 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
439 switch (aftd->dwFormatTagIndex)
440 {
441 case 0:
442 aftd->dwFormatTag = WAVE_FORMAT_PCM;
443 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
444 aftd->cStandardFormats = NUM_PCM_FORMATS;
445 lstrcpyW(aftd->szFormatTag, szPcm);
446 break;
447 case 1:
448 aftd->dwFormatTag = WAVE_FORMAT_ADPCM;
449 aftd->cbFormatSize = sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET);
450 aftd->cStandardFormats = NUM_ADPCM_FORMATS;
451 lstrcpyW(aftd->szFormatTag, szMsAdPcm);
452 break;
453 }
454 return MMSYSERR_NOERROR;
455 }
456
457 /***********************************************************************
458 * ADPCM_FormatDetails
459 *
460 */
461 static LRESULT ADPCM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
462 {
463 switch (dwQuery)
464 {
465 case ACM_FORMATDETAILSF_FORMAT:
466 if (ADPCM_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
467 break;
468 case ACM_FORMATDETAILSF_INDEX:
469 afd->pwfx->wFormatTag = afd->dwFormatTag;
470 switch (afd->dwFormatTag)
471 {
472 case WAVE_FORMAT_PCM:
473 if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE;
474 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
475 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
476 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
477 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
478 * afd->pwfx->cbSize = 0;
479 */
480 afd->pwfx->nBlockAlign =
481 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
482 afd->pwfx->nAvgBytesPerSec =
483 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
484 break;
485 case WAVE_FORMAT_ADPCM:
486 if (afd->dwFormatIndex >= NUM_ADPCM_FORMATS) return ACMERR_NOTPOSSIBLE;
487 if (afd->cbwfx < sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET))
488 return ACMERR_NOTPOSSIBLE;
489 afd->pwfx->nChannels = ADPCM_Formats[afd->dwFormatIndex].nChannels;
490 afd->pwfx->nSamplesPerSec = ADPCM_Formats[afd->dwFormatIndex].rate;
491 afd->pwfx->wBitsPerSample = ADPCM_Formats[afd->dwFormatIndex].nBits;
492 init_wfx_adpcm((ADPCMWAVEFORMAT*)afd->pwfx);
493 break;
494 default:
495 WARN("Unsupported tag %08x\n", afd->dwFormatTag);
496 return MMSYSERR_INVALPARAM;
497 }
498 break;
499 default:
500 WARN("Unsupported query %08x\n", dwQuery);
501 return MMSYSERR_NOTSUPPORTED;
502 }
503 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
504 afd->szFormat[0] = 0; /* let MSACM format this for us... */
505
506 return MMSYSERR_NOERROR;
507 }
508
509 /***********************************************************************
510 * ADPCM_FormatSuggest
511 *
512 */
513 static LRESULT ADPCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
514 {
515 /* some tests ... */
516 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
517 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
518 adfs->pwfxSrc->wFormatTag == adfs->pwfxDst->wFormatTag ||
519 ADPCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
520 /* FIXME: should do those tests against the real size (according to format tag */
521
522 /* If no suggestion for destination, then copy source value */
523 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
524 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
525 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
526 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
527
528 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
529 {
530 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
531 adfs->pwfxDst->wBitsPerSample = 4;
532 else
533 adfs->pwfxDst->wBitsPerSample = 16;
534 }
535 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
536 {
537 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
538 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_ADPCM;
539 else
540 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
541 }
542
543 /* recompute other values */
544 switch (adfs->pwfxDst->wFormatTag)
545 {
546 case WAVE_FORMAT_PCM:
547 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
548 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
549 /* check if result is ok */
550 if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
551 break;
552 case WAVE_FORMAT_ADPCM:
553 if (adfs->cbwfxDst < sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET))
554 return ACMERR_NOTPOSSIBLE;
555 init_wfx_adpcm((ADPCMWAVEFORMAT*)adfs->pwfxDst);
556 /* check if result is ok */
557 if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
558 break;
559 default:
560 return ACMERR_NOTPOSSIBLE;
561 }
562
563 return MMSYSERR_NOERROR;
564 }
565
566 /***********************************************************************
567 * ADPCM_Reset
568 *
569 */
570 static void ADPCM_Reset(PACMDRVSTREAMINSTANCE adsi, AcmAdpcmData* aad)
571 {
572 }
573
574 /***********************************************************************
575 * ADPCM_StreamOpen
576 *
577 */
578 static LRESULT ADPCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
579 {
580 AcmAdpcmData* aad;
581
582 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
583
584 if (ADPCM_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
585 ADPCM_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
586 return ACMERR_NOTPOSSIBLE;
587
588 aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmAdpcmData));
589 if (aad == 0) return MMSYSERR_NOMEM;
590
591 adsi->dwDriver = (DWORD_PTR)aad;
592
593 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
594 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
595 {
596 goto theEnd;
597 }
598 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
599 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
600 {
601 /* resampling or mono <=> stereo not available */
602 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
603 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels)
604 goto theEnd;
605
606 #if 0
607 {
608 unsigned int nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
609 FIXME("spb=%u\n", nspb);
610
611 /* we check that in a block, after the header, samples are present on
612 * 4-sample packet pattern
613 * we also check that the block alignment is bigger than the expected size
614 */
615 if (((nspb - 1) & 3) != 0) goto theEnd;
616 if ((((nspb - 1) / 2) + 4) * adsi->pwfxSrc->nChannels < adsi->pwfxSrc->nBlockAlign)
617 goto theEnd;
618 }
619 #endif
620
621 /* adpcm decoding... */
622 if (adsi->pwfxDst->nChannels == 2)
623 aad->convert = cvtSSms16K;
624 else if (adsi->pwfxDst->nChannels == 1)
625 aad->convert = cvtMMms16K;
626 }
627 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
628 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
629 {
630 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
631 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
632 adsi->pwfxSrc->wBitsPerSample != 16)
633 goto theEnd;
634 #if 0
635 nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock;
636 FIXME("spb=%u\n", nspb);
637
638 /* we check that in a block, after the header, samples are present on
639 * 4-sample packet pattern
640 * we also check that the block alignment is bigger than the expected size
641 */
642 if (((nspb - 1) & 3) != 0) goto theEnd;
643 if ((((nspb - 1) / 2) + 4) * adsi->pwfxDst->nChannels < adsi->pwfxDst->nBlockAlign)
644 goto theEnd;
645 #endif
646 #if 0
647 /* adpcm coding... */
648 if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 2)
649 aad->convert = cvtSS16msK;
650 if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 1)
651 aad->convert = cvtMM16msK;
652 #endif
653 FIXME("We don't support encoding yet\n");
654 goto theEnd;
655 }
656 else goto theEnd;
657 ADPCM_Reset(adsi, aad);
658
659 return MMSYSERR_NOERROR;
660
661 theEnd:
662 HeapFree(GetProcessHeap(), 0, aad);
663 adsi->dwDriver = 0L;
664 return MMSYSERR_NOTSUPPORTED;
665 }
666
667 /***********************************************************************
668 * ADPCM_StreamClose
669 *
670 */
671 static LRESULT ADPCM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
672 {
673 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
674 return MMSYSERR_NOERROR;
675 }
676
677 /***********************************************************************
678 * ADPCM_StreamSize
679 *
680 */
681 static LRESULT ADPCM_StreamSize(const ACMDRVSTREAMINSTANCE *adsi, PACMDRVSTREAMSIZE adss)
682 {
683 DWORD nblocks;
684 WORD wSamplesPerBlock;
685 /* wSamplesPerBlock formula comes from MSDN ADPCMWAVEFORMAT page.*/
686 switch (adss->fdwSize)
687 {
688 case ACM_STREAMSIZEF_DESTINATION:
689 /* cbDstLength => cbSrcLength */
690 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
691 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
692 {
693 wSamplesPerBlock = adsi->pwfxDst->nBlockAlign * 2 / adsi->pwfxDst->nChannels - 12;
694 nblocks = adss->cbDstLength / adsi->pwfxDst->nBlockAlign;
695 if (nblocks == 0)
696 return ACMERR_NOTPOSSIBLE;
697 adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock;
698 }
699 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
700 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
701 {
702 wSamplesPerBlock = adsi->pwfxSrc->nBlockAlign * 2 / adsi->pwfxSrc->nChannels - 12;
703 nblocks = adss->cbDstLength / (adsi->pwfxDst->nBlockAlign * wSamplesPerBlock);
704 if (nblocks == 0)
705 return ACMERR_NOTPOSSIBLE;
706 adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign;
707 }
708 else
709 {
710 return MMSYSERR_NOTSUPPORTED;
711 }
712 break;
713 case ACM_STREAMSIZEF_SOURCE:
714 /* cbSrcLength => cbDstLength */
715 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
716 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
717 {
718 wSamplesPerBlock = adsi->pwfxDst->nBlockAlign * 2 / adsi->pwfxDst->nChannels - 12;
719 nblocks = adss->cbSrcLength / (adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock);
720 if (nblocks == 0)
721 return ACMERR_NOTPOSSIBLE;
722 if (adss->cbSrcLength % (adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock))
723 /* Round block count up. */
724 nblocks++;
725 adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign;
726 }
727 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
728 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
729 {
730 wSamplesPerBlock = adsi->pwfxSrc->nBlockAlign * 2 / adsi->pwfxSrc->nChannels - 12;
731 nblocks = adss->cbSrcLength / adsi->pwfxSrc->nBlockAlign;
732 if (nblocks == 0)
733 return ACMERR_NOTPOSSIBLE;
734 if (adss->cbSrcLength % adsi->pwfxSrc->nBlockAlign)
735 /* Round block count up. */
736 nblocks++;
737 adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign * wSamplesPerBlock;
738 }
739 else
740 {
741 return MMSYSERR_NOTSUPPORTED;
742 }
743 break;
744 default:
745 WARN("Unsupported query %08x\n", adss->fdwSize);
746 return MMSYSERR_NOTSUPPORTED;
747 }
748 return MMSYSERR_NOERROR;
749 }
750
751 /***********************************************************************
752 * ADPCM_StreamConvert
753 *
754 */
755 static LRESULT ADPCM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
756 {
757 AcmAdpcmData* aad = (AcmAdpcmData*)adsi->dwDriver;
758 DWORD nsrc = adsh->cbSrcLength;
759 DWORD ndst = adsh->cbDstLength;
760
761 if (adsh->fdwConvert &
762 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
763 ACM_STREAMCONVERTF_END|
764 ACM_STREAMCONVERTF_START))
765 {
766 FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
767 }
768 /* ACM_STREAMCONVERTF_BLOCKALIGN
769 * currently all conversions are block aligned, so do nothing for this flag
770 * ACM_STREAMCONVERTF_END
771 * no pending data, so do nothing for this flag
772 */
773 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
774 {
775 ADPCM_Reset(adsi, aad);
776 }
777
778 aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
779 adsh->cbSrcLengthUsed = nsrc;
780 adsh->cbDstLengthUsed = ndst;
781
782 return MMSYSERR_NOERROR;
783 }
784
785 /**************************************************************************
786 * ADPCM_DriverProc [exported]
787 */
788 LRESULT CALLBACK ADPCM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
789 LPARAM dwParam1, LPARAM dwParam2)
790 {
791 TRACE("(%08lx %p %04x %08lx %08lx);\n",
792 dwDevID, hDriv, wMsg, dwParam1, dwParam2);
793
794 switch (wMsg)
795 {
796 case DRV_LOAD: return 1;
797 case DRV_FREE: return 1;
798 case DRV_OPEN: return ADPCM_drvOpen((LPSTR)dwParam1);
799 case DRV_CLOSE: return ADPCM_drvClose(dwDevID);
800 case DRV_ENABLE: return 1;
801 case DRV_DISABLE: return 1;
802 case DRV_QUERYCONFIGURE: return 1;
803 case DRV_CONFIGURE: MessageBoxA(0, "MSACM MS ADPCM filter !", "Wine Driver", MB_OK); return 1;
804 case DRV_INSTALL: return DRVCNF_RESTART;
805 case DRV_REMOVE: return DRVCNF_RESTART;
806
807 case ACMDM_DRIVER_NOTIFY:
808 /* no caching from other ACM drivers is done so far */
809 return MMSYSERR_NOERROR;
810
811 case ACMDM_DRIVER_DETAILS:
812 return ADPCM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
813
814 case ACMDM_FORMATTAG_DETAILS:
815 return ADPCM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
816
817 case ACMDM_FORMAT_DETAILS:
818 return ADPCM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
819
820 case ACMDM_FORMAT_SUGGEST:
821 return ADPCM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
822
823 case ACMDM_STREAM_OPEN:
824 return ADPCM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
825
826 case ACMDM_STREAM_CLOSE:
827 return ADPCM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
828
829 case ACMDM_STREAM_SIZE:
830 return ADPCM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
831
832 case ACMDM_STREAM_CONVERT:
833 return ADPCM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
834
835 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
836 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
837 /* this converter is not a hardware driver */
838 case ACMDM_FILTERTAG_DETAILS:
839 case ACMDM_FILTER_DETAILS:
840 /* this converter is not a filter */
841 case ACMDM_STREAM_RESET:
842 /* only needed for asynchronous driver... we aren't, so just say it */
843 return MMSYSERR_NOTSUPPORTED;
844 case ACMDM_STREAM_PREPARE:
845 case ACMDM_STREAM_UNPREPARE:
846 /* nothing special to do here... so don't do anything */
847 return MMSYSERR_NOERROR;
848
849 default:
850 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
851 }
852 }
Windows API implementation