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d3d8: Get rid of the format switching code in d3d8_device_CopyRects().
[wine.git] / dlls / msadp32.acm / msadp32.c
blob59f71b51d4e9ac630629122e5c19ff156397bbb1
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 assert(*src <= 6);
253 coeffL = MSADPCM_CoeffSet[*src++];
254 assert(*src <= 6);
255 coeffR = MSADPCM_CoeffSet[*src++];
256
257 ideltaL = R16(src); src += 2;
258 ideltaR = R16(src); src += 2;
259 sample1L = R16(src); src += 2;
260 sample1R = R16(src); src += 2;
261 sample2L = R16(src); src += 2;
262 sample2R = R16(src); src += 2;
263
264 if(adsi->pwfxDst->wBitsPerSample == 8){
265 /* store samples from block head */
266 *dst = C168(sample2L); ++dst;
267 *dst = C168(sample2R); ++dst;
268 *dst = C168(sample1L); ++dst;
269 *dst = C168(sample1R); ++dst;
270
271 for (nsamp = nsamp_blk; nsamp > 0; nsamp--)
272 {
273 process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL);
274 *dst = C168(sample1L); ++dst;
275 process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR);
276 *dst = C168(sample1R); ++dst;
277 }
278 }else if(adsi->pwfxDst->wBitsPerSample == 16){
279 /* store samples from block head */
280 W16(dst, sample2L); dst += 2;
281 W16(dst, sample2R); dst += 2;
282 W16(dst, sample1L); dst += 2;
283 W16(dst, sample1R); dst += 2;
284
285 for (nsamp = nsamp_blk; nsamp > 0; nsamp--)
286 {
287 process_nibble(*src >> 4, &ideltaL, &sample1L, &sample2L, &coeffL);
288 W16(dst, sample1L); dst += 2;
289 process_nibble(*src++ & 0x0F, &ideltaR, &sample1R, &sample2R, &coeffR);
290 W16(dst, sample1R); dst += 2;
291 }
292 }
293 src = in_src + adsi->pwfxSrc->nBlockAlign;
294 }
295 }
296
297 static void cvtMMms16K(const ACMDRVSTREAMINSTANCE *adsi,
298 const unsigned char* src, LPDWORD nsrc,
299 unsigned char* dst, LPDWORD ndst)
300 {
301 int idelta;
302 int sample1, sample2;
303 ADPCMCOEFSET coeff;
304 int nsamp;
305 int nsamp_blk = ((ADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
306 DWORD nblock = min(*nsrc / adsi->pwfxSrc->nBlockAlign,
307 *ndst / (nsamp_blk * adsi->pwfxDst->nBlockAlign));
308
309 *nsrc = nblock * adsi->pwfxSrc->nBlockAlign;
310 *ndst = nblock * nsamp_blk * adsi->pwfxDst->nBlockAlign;
311
312 nsamp_blk -= 2; /* see below for samples from block head */
313 for (; nblock > 0; nblock--)
314 {
315 const unsigned char* in_src = src;
316
317 assert(*src <= 6);
318 coeff = MSADPCM_CoeffSet[*src++];
319
320 idelta = R16(src); src += 2;
321 sample1 = R16(src); src += 2;
322 sample2 = R16(src); src += 2;
323
324 /* store samples from block head */
325 if(adsi->pwfxDst->wBitsPerSample == 8){
326 *dst = C168(sample2); ++dst;
327 *dst = C168(sample1); ++dst;
328
329 for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
330 {
331 process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff);
332 *dst = C168(sample1); ++dst;
333 process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff);
334 *dst = C168(sample1); ++dst;
335 }
336 }else if(adsi->pwfxDst->wBitsPerSample == 16){
337 W16(dst, sample2); dst += 2;
338 W16(dst, sample1); dst += 2;
339
340 for (nsamp = nsamp_blk; nsamp > 0; nsamp -= 2)
341 {
342 process_nibble(*src >> 4, &idelta, &sample1, &sample2, &coeff);
343 W16(dst, sample1); dst += 2;
344 process_nibble(*src++ & 0x0F, &idelta, &sample1, &sample2, &coeff);
345 W16(dst, sample1); dst += 2;
346 }
347 }
348
349 src = in_src + adsi->pwfxSrc->nBlockAlign;
350 }
351 }
352
353 #if 0
354 static void cvtSS16msK(PACMDRVSTREAMINSTANCE adsi,
355 const unsigned char* src, LPDWORD nsrc,
356 unsigned char* dst, LPDWORD ndst)
357 {
358 }
359
360 static void cvtMM16msK(PACMDRVSTREAMINSTANCE adsi,
361 const unsigned char* src, LPDWORD nsrc,
362 unsigned char* dst, LPDWORD ndst)
363 {
364 }
365 #endif
366
367 /***********************************************************************
368 * ADPCM_DriverDetails
369 *
370 */
371 static LRESULT ADPCM_DriverDetails(PACMDRIVERDETAILSW add)
372 {
373 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
374 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
375 add->wMid = 0xFF;
376 add->wPid = 0x00;
377 add->vdwACM = 0x01000000;
378 add->vdwDriver = 0x01000000;
379 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
380 add->cFormatTags = 2; /* PCM, MS ADPCM */
381 add->cFilterTags = 0;
382 add->hicon = NULL;
383 MultiByteToWideChar( CP_ACP, 0, "MS-ADPCM", -1,
384 add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
385 MultiByteToWideChar( CP_ACP, 0, "Wine MS ADPCM converter", -1,
386 add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
387 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
388 add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
389 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
390 add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
391 add->szFeatures[0] = 0;
392
393 return MMSYSERR_NOERROR;
394 }
395
396 /***********************************************************************
397 * ADPCM_FormatTagDetails
398 *
399 */
400 static LRESULT ADPCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
401 {
402 static const WCHAR szPcm[]={'P','C','M',0};
403 static const WCHAR szMsAdPcm[]={'M','i','c','r','o','s','o','f','t',' ','A','D','P','C','M',0};
404
405 switch (dwQuery)
406 {
407 case ACM_FORMATTAGDETAILSF_INDEX:
408 if (aftd->dwFormatTagIndex >= 2) return ACMERR_NOTPOSSIBLE;
409 break;
410 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
411 if (aftd->dwFormatTag == WAVE_FORMAT_UNKNOWN)
412 {
413 aftd->dwFormatTagIndex = 1; /* WAVE_FORMAT_ADPCM is bigger than PCM */
414 break;
415 }
416 /* fall through */
417 case ACM_FORMATTAGDETAILSF_FORMATTAG:
418 switch (aftd->dwFormatTag)
419 {
420 case WAVE_FORMAT_PCM: aftd->dwFormatTagIndex = 0; break;
421 case WAVE_FORMAT_ADPCM: aftd->dwFormatTagIndex = 1; break;
422 default: return ACMERR_NOTPOSSIBLE;
423 }
424 break;
425 default:
426 WARN("Unsupported query %08x\n", dwQuery);
427 return MMSYSERR_NOTSUPPORTED;
428 }
429
430 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
431 switch (aftd->dwFormatTagIndex)
432 {
433 case 0:
434 aftd->dwFormatTag = WAVE_FORMAT_PCM;
435 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
436 aftd->cStandardFormats = NUM_PCM_FORMATS;
437 lstrcpyW(aftd->szFormatTag, szPcm);
438 break;
439 case 1:
440 aftd->dwFormatTag = WAVE_FORMAT_ADPCM;
441 aftd->cbFormatSize = sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET);
442 aftd->cStandardFormats = NUM_ADPCM_FORMATS;
443 lstrcpyW(aftd->szFormatTag, szMsAdPcm);
444 break;
445 }
446 return MMSYSERR_NOERROR;
447 }
448
449 /***********************************************************************
450 * ADPCM_FormatDetails
451 *
452 */
453 static LRESULT ADPCM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
454 {
455 switch (dwQuery)
456 {
457 case ACM_FORMATDETAILSF_FORMAT:
458 if (ADPCM_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
459 break;
460 case ACM_FORMATDETAILSF_INDEX:
461 afd->pwfx->wFormatTag = afd->dwFormatTag;
462 switch (afd->dwFormatTag)
463 {
464 case WAVE_FORMAT_PCM:
465 if (afd->dwFormatIndex >= NUM_PCM_FORMATS) return ACMERR_NOTPOSSIBLE;
466 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
467 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
468 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
469 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not accessible
470 * afd->pwfx->cbSize = 0;
471 */
472 afd->pwfx->nBlockAlign =
473 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
474 afd->pwfx->nAvgBytesPerSec =
475 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
476 break;
477 case WAVE_FORMAT_ADPCM:
478 if (afd->dwFormatIndex >= NUM_ADPCM_FORMATS) return ACMERR_NOTPOSSIBLE;
479 if (afd->cbwfx < sizeof(ADPCMWAVEFORMAT) + (7 - 1) * sizeof(ADPCMCOEFSET))
480 return ACMERR_NOTPOSSIBLE;
481 afd->pwfx->nChannels = ADPCM_Formats[afd->dwFormatIndex].nChannels;
482 afd->pwfx->nSamplesPerSec = ADPCM_Formats[afd->dwFormatIndex].rate;
483 afd->pwfx->wBitsPerSample = ADPCM_Formats[afd->dwFormatIndex].nBits;
484 init_wfx_adpcm((ADPCMWAVEFORMAT*)afd->pwfx);
485 break;
486 default:
487 WARN("Unsupported tag %08x\n", afd->dwFormatTag);
488 return MMSYSERR_INVALPARAM;
489 }
490 break;
491 default:
492 WARN("Unsupported query %08x\n", dwQuery);
493 return MMSYSERR_NOTSUPPORTED;
494 }
495 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CODEC;
496 afd->szFormat[0] = 0; /* let MSACM format this for us... */
497
498 return MMSYSERR_NOERROR;
499 }
500
501 /***********************************************************************
502 * ADPCM_FormatSuggest
503 *
504 */
505 static LRESULT ADPCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
506 {
507 /* some tests ... */
508 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
509 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
510 adfs->pwfxSrc->wFormatTag == adfs->pwfxDst->wFormatTag ||
511 ADPCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
512 /* FIXME: should do those tests against the real size (according to format tag */
513
514 /* If no suggestion for destination, then copy source value */
515 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS))
516 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
517 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC))
518 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
519
520 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE))
521 {
522 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
523 adfs->pwfxDst->wBitsPerSample = 4;
524 else
525 adfs->pwfxDst->wBitsPerSample = 16;
526 }
527 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG))
528 {
529 if (adfs->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM)
530 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_ADPCM;
531 else
532 adfs->pwfxDst->wFormatTag = WAVE_FORMAT_PCM;
533 }
534
535 /* recompute other values */
536 switch (adfs->pwfxDst->wFormatTag)
537 {
538 case WAVE_FORMAT_PCM:
539 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
540 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
541 /* check if result is ok */
542 if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
543 break;
544 case WAVE_FORMAT_ADPCM:
545 init_wfx_adpcm((ADPCMWAVEFORMAT*)adfs->pwfxDst);
546 /* check if result is ok */
547 if (ADPCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) return ACMERR_NOTPOSSIBLE;
548 break;
549 default:
550 return ACMERR_NOTPOSSIBLE;
551 }
552
553 return MMSYSERR_NOERROR;
554 }
555
556 /***********************************************************************
557 * ADPCM_Reset
558 *
559 */
560 static void ADPCM_Reset(PACMDRVSTREAMINSTANCE adsi, AcmAdpcmData* aad)
561 {
562 }
563
564 /***********************************************************************
565 * ADPCM_StreamOpen
566 *
567 */
568 static LRESULT ADPCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
569 {
570 AcmAdpcmData* aad;
571
572 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
573
574 if (ADPCM_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
575 ADPCM_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF)
576 return ACMERR_NOTPOSSIBLE;
577
578 aad = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmAdpcmData));
579 if (aad == 0) return MMSYSERR_NOMEM;
580
581 adsi->dwDriver = (DWORD_PTR)aad;
582
583 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
584 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
585 {
586 goto theEnd;
587 }
588 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
589 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
590 {
591 /* resampling or mono <=> stereo not available */
592 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
593 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels)
594 goto theEnd;
595
596 #if 0
597 {
598 unsigned int nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxSrc)->wSamplesPerBlock;
599 FIXME("spb=%u\n", nspb);
600
601 /* we check that in a block, after the header, samples are present on
602 * 4-sample packet pattern
603 * we also check that the block alignment is bigger than the expected size
604 */
605 if (((nspb - 1) & 3) != 0) goto theEnd;
606 if ((((nspb - 1) / 2) + 4) * adsi->pwfxSrc->nChannels < adsi->pwfxSrc->nBlockAlign)
607 goto theEnd;
608 }
609 #endif
610
611 /* adpcm decoding... */
612 if (adsi->pwfxDst->nChannels == 2)
613 aad->convert = cvtSSms16K;
614 else if (adsi->pwfxDst->nChannels == 1)
615 aad->convert = cvtMMms16K;
616 }
617 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
618 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
619 {
620 if (adsi->pwfxSrc->nSamplesPerSec != adsi->pwfxDst->nSamplesPerSec ||
621 adsi->pwfxSrc->nChannels != adsi->pwfxDst->nChannels ||
622 adsi->pwfxSrc->wBitsPerSample != 16)
623 goto theEnd;
624 #if 0
625 nspb = ((IMAADPCMWAVEFORMAT*)adsi->pwfxDst)->wSamplesPerBlock;
626 FIXME("spb=%u\n", nspb);
627
628 /* we check that in a block, after the header, samples are present on
629 * 4-sample packet pattern
630 * we also check that the block alignment is bigger than the expected size
631 */
632 if (((nspb - 1) & 3) != 0) goto theEnd;
633 if ((((nspb - 1) / 2) + 4) * adsi->pwfxDst->nChannels < adsi->pwfxDst->nBlockAlign)
634 goto theEnd;
635 #endif
636 #if 0
637 /* adpcm coding... */
638 if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 2)
639 aad->convert = cvtSS16msK;
640 if (adsi->pwfxSrc->wBitsPerSample == 16 && adsi->pwfxSrc->nChannels == 1)
641 aad->convert = cvtMM16msK;
642 #endif
643 FIXME("We don't support encoding yet\n");
644 goto theEnd;
645 }
646 else goto theEnd;
647 ADPCM_Reset(adsi, aad);
648
649 return MMSYSERR_NOERROR;
650
651 theEnd:
652 HeapFree(GetProcessHeap(), 0, aad);
653 adsi->dwDriver = 0L;
654 return MMSYSERR_NOTSUPPORTED;
655 }
656
657 /***********************************************************************
658 * ADPCM_StreamClose
659 *
660 */
661 static LRESULT ADPCM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
662 {
663 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
664 return MMSYSERR_NOERROR;
665 }
666
667 /***********************************************************************
668 * ADPCM_StreamSize
669 *
670 */
671 static LRESULT ADPCM_StreamSize(const ACMDRVSTREAMINSTANCE *adsi, PACMDRVSTREAMSIZE adss)
672 {
673 DWORD nblocks;
674 WORD wSamplesPerBlock;
675 /* wSamplesPerBlock formula comes from MSDN ADPCMWAVEFORMAT page.*/
676 switch (adss->fdwSize)
677 {
678 case ACM_STREAMSIZEF_DESTINATION:
679 /* cbDstLength => cbSrcLength */
680 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
681 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
682 {
683 wSamplesPerBlock = adsi->pwfxDst->nBlockAlign * 2 / adsi->pwfxDst->nChannels - 12;
684 nblocks = adss->cbDstLength / adsi->pwfxDst->nBlockAlign;
685 if (nblocks == 0)
686 return ACMERR_NOTPOSSIBLE;
687 adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock;
688 }
689 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
690 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
691 {
692 wSamplesPerBlock = adsi->pwfxSrc->nBlockAlign * 2 / adsi->pwfxSrc->nChannels - 12;
693 nblocks = adss->cbDstLength / (adsi->pwfxDst->nBlockAlign * wSamplesPerBlock);
694 if (nblocks == 0)
695 return ACMERR_NOTPOSSIBLE;
696 adss->cbSrcLength = nblocks * adsi->pwfxSrc->nBlockAlign;
697 }
698 else
699 {
700 return MMSYSERR_NOTSUPPORTED;
701 }
702 break;
703 case ACM_STREAMSIZEF_SOURCE:
704 /* cbSrcLength => cbDstLength */
705 if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_PCM &&
706 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_ADPCM)
707 {
708 wSamplesPerBlock = adsi->pwfxDst->nBlockAlign * 2 / adsi->pwfxDst->nChannels - 12;
709 nblocks = adss->cbSrcLength / (adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock);
710 if (nblocks == 0)
711 return ACMERR_NOTPOSSIBLE;
712 if (adss->cbSrcLength % (adsi->pwfxSrc->nBlockAlign * wSamplesPerBlock))
713 /* Round block count up. */
714 nblocks++;
715 adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign;
716 }
717 else if (adsi->pwfxSrc->wFormatTag == WAVE_FORMAT_ADPCM &&
718 adsi->pwfxDst->wFormatTag == WAVE_FORMAT_PCM)
719 {
720 wSamplesPerBlock = adsi->pwfxSrc->nBlockAlign * 2 / adsi->pwfxSrc->nChannels - 12;
721 nblocks = adss->cbSrcLength / adsi->pwfxSrc->nBlockAlign;
722 if (nblocks == 0)
723 return ACMERR_NOTPOSSIBLE;
724 if (adss->cbSrcLength % adsi->pwfxSrc->nBlockAlign)
725 /* Round block count up. */
726 nblocks++;
727 adss->cbDstLength = nblocks * adsi->pwfxDst->nBlockAlign * wSamplesPerBlock;
728 }
729 else
730 {
731 return MMSYSERR_NOTSUPPORTED;
732 }
733 break;
734 default:
735 WARN("Unsupported query %08x\n", adss->fdwSize);
736 return MMSYSERR_NOTSUPPORTED;
737 }
738 return MMSYSERR_NOERROR;
739 }
740
741 /***********************************************************************
742 * ADPCM_StreamConvert
743 *
744 */
745 static LRESULT ADPCM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
746 {
747 AcmAdpcmData* aad = (AcmAdpcmData*)adsi->dwDriver;
748 DWORD nsrc = adsh->cbSrcLength;
749 DWORD ndst = adsh->cbDstLength;
750
751 if (adsh->fdwConvert &
752 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
753 ACM_STREAMCONVERTF_END|
754 ACM_STREAMCONVERTF_START))
755 {
756 FIXME("Unsupported fdwConvert (%08x), ignoring it\n", adsh->fdwConvert);
757 }
758 /* ACM_STREAMCONVERTF_BLOCKALIGN
759 * currently all conversions are block aligned, so do nothing for this flag
760 * ACM_STREAMCONVERTF_END
761 * no pending data, so do nothing for this flag
762 */
763 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START))
764 {
765 ADPCM_Reset(adsi, aad);
766 }
767
768 aad->convert(adsi, adsh->pbSrc, &nsrc, adsh->pbDst, &ndst);
769 adsh->cbSrcLengthUsed = nsrc;
770 adsh->cbDstLengthUsed = ndst;
771
772 return MMSYSERR_NOERROR;
773 }
774
775 /**************************************************************************
776 * ADPCM_DriverProc [exported]
777 */
778 LRESULT CALLBACK ADPCM_DriverProc(DWORD_PTR dwDevID, HDRVR hDriv, UINT wMsg,
779 LPARAM dwParam1, LPARAM dwParam2)
780 {
781 TRACE("(%08lx %p %04x %08lx %08lx);\n",
782 dwDevID, hDriv, wMsg, dwParam1, dwParam2);
783
784 switch (wMsg)
785 {
786 case DRV_LOAD: return 1;
787 case DRV_FREE: return 1;
788 case DRV_OPEN: return ADPCM_drvOpen((LPSTR)dwParam1);
789 case DRV_CLOSE: return ADPCM_drvClose(dwDevID);
790 case DRV_ENABLE: return 1;
791 case DRV_DISABLE: return 1;
792 case DRV_QUERYCONFIGURE: return 1;
793 case DRV_CONFIGURE: MessageBoxA(0, "MSACM MS ADPCM filter !", "Wine Driver", MB_OK); return 1;
794 case DRV_INSTALL: return DRVCNF_RESTART;
795 case DRV_REMOVE: return DRVCNF_RESTART;
796
797 case ACMDM_DRIVER_NOTIFY:
798 /* no caching from other ACM drivers is done so far */
799 return MMSYSERR_NOERROR;
800
801 case ACMDM_DRIVER_DETAILS:
802 return ADPCM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
803
804 case ACMDM_FORMATTAG_DETAILS:
805 return ADPCM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
806
807 case ACMDM_FORMAT_DETAILS:
808 return ADPCM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
809
810 case ACMDM_FORMAT_SUGGEST:
811 return ADPCM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
812
813 case ACMDM_STREAM_OPEN:
814 return ADPCM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
815
816 case ACMDM_STREAM_CLOSE:
817 return ADPCM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
818
819 case ACMDM_STREAM_SIZE:
820 return ADPCM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
821
822 case ACMDM_STREAM_CONVERT:
823 return ADPCM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
824
825 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
826 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
827 /* this converter is not a hardware driver */
828 case ACMDM_FILTERTAG_DETAILS:
829 case ACMDM_FILTER_DETAILS:
830 /* this converter is not a filter */
831 case ACMDM_STREAM_RESET:
832 /* only needed for asynchronous driver... we aren't, so just say it */
833 return MMSYSERR_NOTSUPPORTED;
834 case ACMDM_STREAM_PREPARE:
835 case ACMDM_STREAM_UNPREPARE:
836 /* nothing special to do here... so don't do anything */
837 return MMSYSERR_NOERROR;
838
839 default:
840 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
841 }
842 }
Windows API implementation