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In VOLUME_ReadFATSuperblock:
[wine/testsucceed.git] / dlls / msacm / pcmconverter.c
bloba01311b6d9f7f6250fa856bc08dd8b023e0dd8be
1 /* -*- tab-width: 8; c-basic-offset: 4 -*- */
2
3 /*
4 * MSACM32 library
5 *
6 * Copyright 2000 Eric Pouech
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 * FIXME / TODO list
23 * + most of the computation should be done in fixed point arithmetic
24 * instead of floating point (16 bits for integral part, and 16 bits
25 * for fractional part for example)
26 * + implement PCM_FormatSuggest function
27 * + get rid of hack for PCM_DriverProc (msacm32.dll shouldn't export
28 * a DriverProc, but this would require implementing a generic
29 * embedded driver handling scheme in msacm32.dll which isn't done yet
30 */
31
32 #include "config.h"
33
34 #include <assert.h>
35 #include <stdarg.h>
36 #include <string.h>
37
38 #include "windef.h"
39 #include "winbase.h"
40 #include "mmsystem.h"
41 #define NOBITMAP
42 #include "mmreg.h"
43 #include "msacm.h"
44 #include "wingdi.h"
45 #include "winnls.h"
46 #include "winuser.h"
47
48 #include "msacmdrv.h"
49 #include "wineacm.h"
50
51 #include "wine/debug.h"
52
53 WINE_DEFAULT_DEBUG_CHANNEL(msacm);
54
55 /***********************************************************************
56 * PCM_drvOpen
57 */
58 static DWORD PCM_drvOpen(LPCSTR str, PACMDRVOPENDESCW adod)
59 {
60 TRACE("(%p, %p)\n", str, adod);
61
62 return (adod == NULL) ||
63 (adod->fccType == ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC &&
64 adod->fccComp == ACMDRIVERDETAILS_FCCCOMP_UNDEFINED);
65 }
66
67 /***********************************************************************
68 * PCM_drvClose
69 */
70 static DWORD PCM_drvClose(DWORD dwDevID)
71 {
72 TRACE("(%ld)\n", dwDevID);
73
74 return 1;
75 }
76
77 #define NUM_PCM_FORMATS (sizeof(PCM_Formats) / sizeof(PCM_Formats[0]))
78 #define NUM_OF(a,b) (((a)+(b)-1)/(b))
79
80 /* flags for fdwDriver */
81 #define PCM_RESAMPLE 1
82
83 /* data used while converting */
84 typedef struct tagAcmPcmData {
85 /* conversion routine, depending if rate conversion is required */
86 union {
87 void (*cvtKeepRate)(const unsigned char*, int, unsigned char*);
88 void (*cvtChangeRate)(struct tagAcmPcmData*, const unsigned char*,
89 LPDWORD, unsigned char*, LPDWORD);
90 } cvt;
91 /* the following fields are used only with rate conversion) */
92 DWORD srcPos; /* position in source stream */
93 double dstPos; /* position in destination stream */
94 double dstIncr; /* value to increment dst stream when src stream
95 is incremented by 1 */
96 /* last source stream value read */
97 union {
98 unsigned char b; /* 8 bit value */
99 short s; /* 16 bit value */
100 } last[2]; /* two channels max (stereo) */
101 } AcmPcmData;
102
103 /* table to list all supported formats... those are the basic ones. this
104 * also helps given a unique index to each of the supported formats
105 */
106 static struct {
107 int nChannels;
108 int nBits;
109 int rate;
110 } PCM_Formats[] = {
111 {1, 8, 8000}, {2, 8, 8000}, {1, 16, 8000}, {2, 16, 8000},
112 {1, 8, 11025}, {2, 8, 11025}, {1, 16, 11025}, {2, 16, 11025},
113 {1, 8, 22050}, {2, 8, 22050}, {1, 16, 22050}, {2, 16, 22050},
114 {1, 8, 44100}, {2, 8, 44100}, {1, 16, 44100}, {2, 16, 44100},
115 {1, 8, 48000}, {2, 8, 48000}, {1, 16, 48000}, {2, 16, 48000},
116 {1, 8, 96000}, {2, 8, 96000}, {1, 16, 96000}, {2, 16, 96000}
117 };
118
119 /***********************************************************************
120 * PCM_GetFormatIndex
121 */
122 static DWORD PCM_GetFormatIndex(LPWAVEFORMATEX wfx)
123 {
124 unsigned int i;
125 TRACE("(%p)\n", wfx);
126
127 for (i = 0; i < NUM_PCM_FORMATS; i++) {
128 if (wfx->nChannels == PCM_Formats[i].nChannels &&
129 wfx->nSamplesPerSec == PCM_Formats[i].rate &&
130 wfx->wBitsPerSample == PCM_Formats[i].nBits)
131 return i;
132 }
133 return 0xFFFFFFFF;
134 }
135
136 /* PCM Conversions:
137 *
138 * parameters:
139 * + 8 bit unsigned vs 16 bit signed
140 * + mono vs stereo (1 or 2 channels)
141 * + sampling rate (8.0, 11.025, 22.05, 44.1 kHz are defined, but algo
142 * shall work in all cases)
143 *
144 * mono => stereo: copy the same sample on Left & Right channels
145 * stereo =) mono: use the average value of samples from Left & Right channels
146 * resampling; we lookup for each destination sample the two source adjacent
147 * samples were src <= dst < src+1 (dst is increased by a fractional
148 * value which is equivalent to the increment by one on src); then we
149 * use a linear interpolation between src and src+1
150 */
151
152 /***********************************************************************
153 * C816
154 *
155 * Converts a 8 bit sample to a 16 bit one
156 */
157 static inline short C816(unsigned char b)
158 {
159 return (short)((b+(b << 8))-32768);
160 }
161
162 /***********************************************************************
163 * C168
164 *
165 * Converts a 16 bit sample to a 8 bit one (data loss !!)
166 */
167 static inline unsigned char C168(short s)
168 {
169 return HIBYTE(s) ^ (unsigned char)0x80;
170 }
171
172 /***********************************************************************
173 * R16
174 *
175 * Read a 16 bit sample (correctly handles endianess)
176 */
177 static inline short R16(const unsigned char* src)
178 {
179 return (short)((unsigned short)src[0] | ((unsigned short)src[1] << 8));
180 }
181
182 /***********************************************************************
183 * W16
184 *
185 * Write a 16 bit sample (correctly handles endianess)
186 */
187 static inline void W16(unsigned char* dst, short s)
188 {
189 dst[0] = LOBYTE(s);
190 dst[1] = HIBYTE(s);
191 }
192
193 /***********************************************************************
194 * M16
195 *
196 * Convert the (l,r) 16 bit stereo sample into a 16 bit mono
197 * (takes the mid-point of the two values)
198 */
199 static inline short M16(short l, short r)
200 {
201 return (l + r) / 2;
202 }
203
204 /***********************************************************************
205 * M8
206 *
207 * Convert the (l,r) 8 bit stereo sample into a 8 bit mono
208 * (takes the mid-point of the two values)
209 */
210 static inline unsigned char M8(unsigned char a, unsigned char b)
211 {
212 return (unsigned char)((a + b) / 2);
213 }
214
215 /* the conversion routines without rate conversion are labelled cvt<X><Y><N><M>K
216 * where :
217 * <X> is the (M)ono/(S)tereo configuration of input channel
218 * <Y> is the (M)ono/(S)tereo configuration of output channel
219 * <N> is the number of bits of input channel (8 or 16)
220 * <M> is the number of bits of output channel (8 or 16)
221 *
222 * in the parameters, ns is always the number of samples, so the size of input
223 * buffer (resp output buffer) is ns * (<X> == 'Mono' ? 1:2) * (<N> == 8 ? 1:2)
224 */
225
226 static void cvtMM88K(const unsigned char* src, int ns, unsigned char* dst)
227 {
228 TRACE("(%p, %d, %p)\n", src, ns, dst);
229 memcpy(dst, src, ns);
230 }
231
232 static void cvtSS88K(const unsigned char* src, int ns, unsigned char* dst)
233 {
234 TRACE("(%p, %d, %p)\n", src, ns, dst);
235 memcpy(dst, src, ns * 2);
236 }
237
238 static void cvtMM1616K(const unsigned char* src, int ns, unsigned char* dst)
239 {
240 TRACE("(%p, %d, %p)\n", src, ns, dst);
241 memcpy(dst, src, ns * 2);
242 }
243
244 static void cvtSS1616K(const unsigned char* src, int ns, unsigned char* dst)
245 {
246 TRACE("(%p, %d, %p)\n", src, ns, dst);
247 memcpy(dst, src, ns * 4);
248 }
249
250 static void cvtMS88K(const unsigned char* src, int ns, unsigned char* dst)
251 {
252 TRACE("(%p, %d, %p)\n", src, ns, dst);
253
254 while (ns--) {
255 *dst++ = *src;
256 *dst++ = *src++;
257 }
258 }
259
260 static void cvtMS816K(const unsigned char* src, int ns, unsigned char* dst)
261 {
262 short v;
263 TRACE("(%p, %d, %p)\n", src, ns, dst);
264
265 while (ns--) {
266 v = C816(*src++);
267 W16(dst, v); dst += 2;
268 W16(dst, v); dst += 2;
269 }
270 }
271
272 static void cvtMS168K(const unsigned char* src, int ns, unsigned char* dst)
273 {
274 unsigned char v;
275 TRACE("(%p, %d, %p)\n", src, ns, dst);
276
277 while (ns--) {
278 v = C168(R16(src)); src += 2;
279 *dst++ = v;
280 *dst++ = v;
281 }
282 }
283
284 static void cvtMS1616K(const unsigned char* src, int ns, unsigned char* dst)
285 {
286 short v;
287 TRACE("(%p, %d, %p)\n", src, ns, dst);
288
289 while (ns--) {
290 v = R16(src); src += 2;
291 W16(dst, v); dst += 2;
292 W16(dst, v); dst += 2;
293 }
294 }
295
296 static void cvtSM88K(const unsigned char* src, int ns, unsigned char* dst)
297 {
298 TRACE("(%p, %d, %p)\n", src, ns, dst);
299
300 while (ns--) {
301 *dst++ = M8(src[0], src[1]);
302 src += 2;
303 }
304 }
305
306 static void cvtSM816K(const unsigned char* src, int ns, unsigned char* dst)
307 {
308 short v;
309 TRACE("(%p, %d, %p)\n", src, ns, dst);
310
311 while (ns--) {
312 v = M16(C816(src[0]), C816(src[1]));
313 src += 2;
314 W16(dst, v); dst += 2;
315 }
316 }
317
318 static void cvtSM168K(const unsigned char* src, int ns, unsigned char* dst)
319 {
320 TRACE("(%p, %d, %p)\n", src, ns, dst);
321
322 while (ns--) {
323 *dst++ = C168(M16(R16(src), R16(src + 2)));
324 src += 4;
325 }
326 }
327
328 static void cvtSM1616K(const unsigned char* src, int ns, unsigned char* dst)
329 {
330 TRACE("(%p, %d, %p)\n", src, ns, dst);
331
332 while (ns--) {
333 W16(dst, M16(R16(src),R16(src+2))); dst += 2;
334 src += 4;
335 }
336 }
337
338 static void cvtMM816K(const unsigned char* src, int ns, unsigned char* dst)
339 {
340 TRACE("(%p, %d, %p)\n", src, ns, dst);
341
342 while (ns--) {
343 W16(dst, C816(*src++)); dst += 2;
344 }
345 }
346
347 static void cvtSS816K(const unsigned char* src, int ns, unsigned char* dst)
348 {
349 TRACE("(%p, %d, %p)\n", src, ns, dst);
350
351 while (ns--) {
352 W16(dst, C816(*src++)); dst += 2;
353 W16(dst, C816(*src++)); dst += 2;
354 }
355 }
356
357 static void cvtMM168K(const unsigned char* src, int ns, unsigned char* dst)
358 {
359 TRACE("(%p, %d, %p)\n", src, ns, dst);
360
361 while (ns--) {
362 *dst++ = C168(R16(src)); src += 2;
363 }
364 }
365
366 static void cvtSS168K(const unsigned char* src, int ns, unsigned char* dst)
367 {
368 TRACE("(%p, %d, %p)\n", src, ns, dst);
369
370 while (ns--) {
371 *dst++ = C168(R16(src)); src += 2;
372 *dst++ = C168(R16(src)); src += 2;
373 }
374 }
375
376 static void (*PCM_ConvertKeepRate[16])(const unsigned char*, int, unsigned char*) = {
377 cvtSS88K, cvtSM88K, cvtMS88K, cvtMM88K,
378 cvtSS816K, cvtSM816K, cvtMS816K, cvtMM816K,
379 cvtSS168K, cvtSM168K, cvtMS168K, cvtMM168K,
380 cvtSS1616K, cvtSM1616K, cvtMS1616K, cvtMM1616K,
381 };
382
383 /***********************************************************************
384 * I
385 *
386 * Interpolate the value at r (r in ]0, 1]) between the two points v1 and v2
387 * Linear interpolation is used
388 */
389 static inline double I(double v1, double v2, double r)
390 {
391 if (0.0 >= r || r > 1.0) FIXME("r!! %f\n", r);
392 return (1.0 - r) * v1 + r * v2;
393 }
394
395 static void cvtSS88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
396 unsigned char* dst, LPDWORD ndst)
397 {
398 double r;
399 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
400
401 while (*nsrc != 0 && *ndst != 0) {
402 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
403 if (*nsrc == 0) return;
404 apd->last[0].b = *src++;
405 apd->last[1].b = *src++;
406 apd->srcPos++;
407 (*nsrc)--;
408 }
409 /* now do the interpolation */
410 *dst++ = I(apd->last[0].b, src[0], r);
411 *dst++ = I(apd->last[1].b, src[1], r);
412 apd->dstPos += apd->dstIncr;
413 (*ndst)--;
414 }
415 }
416
417 /* the conversion routines with rate conversion are labelled cvt<X><Y><N><M>C
418 * where :
419 * <X> is the (M)ono/(S)tereo configuration of input channel
420 * <Y> is the (M)ono/(S)tereo configuration of output channel
421 * <N> is the number of bits of input channel (8 or 16)
422 * <M> is the number of bits of output channel (8 or 16)
423 *
424 */
425 static void cvtSM88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
426 unsigned char* dst, LPDWORD ndst)
427 {
428 double r;
429 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
430
431 while (*nsrc != 0 && *ndst != 0) {
432 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
433 if (*nsrc == 0) return;
434 apd->last[0].b = *src++;
435 apd->last[1].b = *src++;
436 apd->srcPos++;
437 (*nsrc)--;
438 }
439 /* now do the interpolation */
440 if (*nsrc) /* don't go off end of data */
441 *dst++ = I(M8(apd->last[0].b, apd->last[1].b), M8(src[0], src[1]), r);
442 else
443 *dst++ = M8(apd->last[0].b, apd->last[1].b);
444 apd->dstPos += apd->dstIncr;
445 (*ndst)--;
446 }
447 }
448
449 static void cvtMS88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
450 unsigned char* dst, LPDWORD ndst)
451 {
452 double r;
453 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
454
455 while (*nsrc != 0 && *ndst != 0) {
456 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
457 if (*nsrc == 0) return;
458 apd->last[0].b = *src++;
459 apd->srcPos++;
460 (*nsrc)--;
461 }
462 /* now do the interpolation */
463 if (*nsrc) /* don't go off end of data */
464 dst[0] = dst[1] = I(apd->last[0].b, src[0], r);
465 else
466 dst[0] = dst[1] = apd->last[0].b;
467 dst += 2;
468 apd->dstPos += apd->dstIncr;
469 (*ndst)--;
470 }
471 }
472
473 static void cvtMM88C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
474 unsigned char* dst, LPDWORD ndst)
475 {
476 double r;
477 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
478
479 while (*nsrc != 0 && *ndst != 0) {
480 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
481 if (*nsrc == 0) return;
482 apd->last[0].b = *src++;
483 apd->srcPos++;
484 (*nsrc)--;
485 }
486 /* now do the interpolation */
487 if (*nsrc) /* don't go off end of data */
488 *dst++ = I(apd->last[0].b, src[0], r);
489 else
490 *dst++ = apd->last[0].b;
491 apd->dstPos += apd->dstIncr;
492 (*ndst)--;
493 }
494 }
495
496 static void cvtSS816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
497 unsigned char* dst, LPDWORD ndst)
498 {
499 double r;
500 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
501
502 while (*nsrc != 0 && *ndst != 0) {
503 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
504 if (*nsrc == 0) return;
505 apd->last[0].b = *src++;
506 apd->last[1].b = *src++;
507 apd->srcPos++;
508 (*nsrc)--;
509 }
510 /* now do the interpolation */
511 if (*nsrc) /* don't go off end of data */
512 W16(dst, I(C816(apd->last[0].b), C816(src[0]), r));
513 else
514 W16(dst, C816(apd->last[0].b));
515 dst += 2;
516 if (*nsrc) /* don't go off end of data */
517 W16(dst, I(C816(apd->last[1].b), C816(src[1]), r));
518 else
519 W16(dst, C816(apd->last[1].b));
520 dst += 2;
521 apd->dstPos += apd->dstIncr;
522 (*ndst)--;
523 }
524 }
525
526 static void cvtSM816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
527 unsigned char* dst, LPDWORD ndst)
528 {
529 double r;
530 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
531
532 while (*nsrc != 0 && *ndst != 0) {
533 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
534 if (*nsrc == 0) return;
535 apd->last[0].b = *src++;
536 apd->last[1].b = *src++;
537 apd->srcPos++;
538 (*nsrc)--;
539 }
540 /* now do the interpolation */
541 if (*nsrc) /* don't go off end of data */
542 W16(dst, I(M16(C816(apd->last[0].b), C816(apd->last[1].b)),
543 M16(C816(src[0]), C816(src[1])), r));
544 else
545 W16(dst, M16(C816(apd->last[0].b), C816(apd->last[1].b)));
546 dst += 2;
547 apd->dstPos += apd->dstIncr;
548 (*ndst)--;
549 }
550 }
551
552 static void cvtMS816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
553 unsigned char* dst, LPDWORD ndst)
554 {
555 double r;
556 short v;
557 TRACE("(%p, %p, %p->(%ld), %p, %p->(%ld))\n", apd, src, nsrc, *nsrc, dst, ndst, *ndst);
558
559 while (*nsrc != 0 && *ndst != 0) {
560 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
561 if (*nsrc == 0) return;
562 apd->last[0].b = *src++;
563 apd->srcPos++;
564 (*nsrc)--;
565 }
566 /* now do the interpolation */
567 if (*nsrc) /* don't go off end of data */
568 v = I(C816(apd->last[0].b), C816(src[0]), r);
569 else
570 v = C816(apd->last[0].b);
571 W16(dst, v); dst += 2;
572 W16(dst, v); dst += 2;
573 apd->dstPos += apd->dstIncr;
574 (*ndst)--;
575 }
576 }
577
578 static void cvtMM816C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
579 unsigned char* dst, LPDWORD ndst)
580 {
581 double r;
582 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
583
584 while (*nsrc != 0 && *ndst != 0) {
585 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
586 if (*nsrc == 0) return;
587 apd->last[0].b = *src++;
588 apd->srcPos++;
589 (*nsrc)--;
590 }
591 /* now do the interpolation */
592 if (*nsrc) /* don't go off end of data */
593 W16(dst, I(C816(apd->last[0].b), C816(src[0]), r));
594 else
595 W16(dst, C816(apd->last[0].b));
596 dst += 2;
597 apd->dstPos += apd->dstIncr;
598 (*ndst)--;
599 }
600 }
601
602 static void cvtSS168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
603 unsigned char* dst, LPDWORD ndst)
604 {
605 double r;
606 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
607
608 while (*nsrc != 0 && *ndst != 0) {
609 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
610 if (*nsrc == 0) return;
611 apd->last[0].s = R16(src); src += 2;
612 apd->last[1].s = R16(src); src += 2;
613 apd->srcPos++;
614 (*nsrc)--;
615 }
616 /* now do the interpolation */
617 if (*nsrc) { /* don't go off end of data */
618 *dst++ = C168(I(apd->last[0].s, R16(src) , r));
619 *dst++ = C168(I(apd->last[1].s, R16(src+2), r));
620 } else {
621 *dst++ = C168(apd->last[0].s);
622 *dst++ = C168(apd->last[1].s);
623 }
624 apd->dstPos += apd->dstIncr;
625 (*ndst)--;
626 }
627 }
628
629 static void cvtSM168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
630 unsigned char* dst, LPDWORD ndst)
631 {
632 double r;
633 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
634
635 while (*nsrc != 0 && *ndst != 0) {
636 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
637 if (*nsrc == 0) return;
638 apd->last[0].s = R16(src); src += 2;
639 apd->last[1].s = R16(src); src += 2;
640 apd->srcPos++;
641 (*nsrc)--;
642 }
643 /* now do the interpolation */
644 if (*nsrc) /* don't go off end of data */
645 *dst++ = C168(I(M16(apd->last[0].s, apd->last[1].s),
646 M16(R16(src), R16(src + 2)), r));
647 else
648 *dst++ = C168(M16(apd->last[0].s, apd->last[1].s));
649 apd->dstPos += apd->dstIncr;
650 (*ndst)--;
651 }
652 }
653
654
655 static void cvtMS168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
656 unsigned char* dst, LPDWORD ndst)
657 {
658 double r;
659 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
660
661 while (*nsrc != 0 && *ndst != 0) {
662 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
663 if (*nsrc == 0) return;
664 apd->last[0].s = R16(src); src += 2;
665 apd->srcPos++;
666 (*nsrc)--;
667 }
668 /* now do the interpolation */
669 if (*nsrc) /* don't go off end of data */
670 dst[0] = dst[1] = C168(I(apd->last[0].s, R16(src), r));
671 else
672 dst[0] = dst[1] = C168(apd->last[0].s);
673 dst += 2;
674 apd->dstPos += apd->dstIncr;
675 (*ndst)--;
676 }
677 }
678
679
680 static void cvtMM168C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
681 unsigned char* dst, LPDWORD ndst)
682 {
683 double r;
684 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
685
686 while (*nsrc != 0 && *ndst != 0) {
687 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
688 if (*nsrc == 0) return;
689 apd->last[0].s = R16(src); src += 2;
690 apd->srcPos++;
691 (*nsrc)--;
692 }
693 /* now do the interpolation */
694 if (*nsrc) /* don't go off end of data */
695 *dst++ = C168(I(apd->last[0].s, R16(src), r));
696 else
697 *dst++ = C168(apd->last[0].s);
698 apd->dstPos += apd->dstIncr;
699 (*ndst)--;
700 }
701 }
702
703 static void cvtSS1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
704 unsigned char* dst, LPDWORD ndst)
705 {
706 double r;
707 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
708
709 while (*nsrc != 0 && *ndst != 0) {
710 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
711 if (*nsrc == 0) return;
712 apd->last[0].s = R16(src); src += 2;
713 apd->last[1].s = R16(src); src += 2;
714 apd->srcPos++;
715 (*nsrc)--;
716 }
717 /* now do the interpolation */
718 if (*nsrc) /* don't go off end of data */
719 W16(dst, I(apd->last[0].s, R16(src), r));
720 else
721 W16(dst, apd->last[0].s);
722 dst += 2;
723 if (*nsrc) /* don't go off end of data */
724 W16(dst, I(apd->last[1].s, R16(src+2), r));
725 else
726 W16(dst, apd->last[1].s);
727 dst += 2;
728 apd->dstPos += apd->dstIncr;
729 (*ndst)--;
730 }
731 }
732
733 static void cvtSM1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
734 unsigned char* dst, LPDWORD ndst)
735 {
736 double r;
737 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
738
739 while (*nsrc != 0 && *ndst != 0) {
740 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
741 if (*nsrc == 0) return;
742 apd->last[0].s = R16(src); src += 2;
743 apd->last[1].s = R16(src); src += 2;
744 apd->srcPos++;
745 (*nsrc)--;
746 }
747 /* now do the interpolation */
748 if (*nsrc) /* don't go off end of data */
749 W16(dst, I(M16(apd->last[0].s, apd->last[1].s),
750 M16(R16(src), R16(src+2)), r));
751 else
752 W16(dst, M16(apd->last[0].s, apd->last[1].s));
753 dst += 2;
754 apd->dstPos += apd->dstIncr;
755 (*ndst)--;
756 }
757 }
758
759 static void cvtMS1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
760 unsigned char* dst, LPDWORD ndst)
761 {
762 double r;
763 short v;
764 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
765
766 while (*nsrc != 0 && *ndst != 0) {
767 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
768 if (*nsrc == 0) return;
769 apd->last[0].s = R16(src); src += 2;
770 apd->srcPos++;
771 (*nsrc)--;
772 }
773 /* now do the interpolation */
774 if (*nsrc) /* don't go off end of data */
775 v = I(apd->last[0].s, R16(src), r);
776 else
777 v = apd->last[0].s;
778 W16(dst, v); dst += 2;
779 W16(dst, v); dst += 2;
780 apd->dstPos += apd->dstIncr;
781 (*ndst)--;
782 }
783 }
784
785 static void cvtMM1616C(AcmPcmData* apd, const unsigned char* src, LPDWORD nsrc,
786 unsigned char* dst, LPDWORD ndst)
787 {
788 double r;
789 TRACE("(%p, %p, %p, %p, %p)\n", apd, src, nsrc, dst, ndst);
790
791 while (*nsrc != 0 && *ndst != 0) {
792 while ((r = (double)apd->srcPos - apd->dstPos) <= 0) {
793 if (*nsrc == 0) return;
794 apd->last[0].s = R16(src); src += 2;
795 apd->srcPos++;
796 (*nsrc)--;
797 }
798 /* now do the interpolation */
799 if (*nsrc) /* don't go off end of data */
800 W16(dst, I(apd->last[0].s, R16(src), r));
801 else
802 W16(dst, apd->last[0].s);
803 dst += 2;
804 apd->dstPos += apd->dstIncr;
805 (*ndst)--;
806 }
807 }
808
809 static void (*PCM_ConvertChangeRate[16])(AcmPcmData* apd,
810 const unsigned char* src, LPDWORD nsrc,
811 unsigned char* dst, LPDWORD ndst) = {
812 cvtSS88C, cvtSM88C, cvtMS88C, cvtMM88C,
813 cvtSS816C, cvtSM816C, cvtMS816C, cvtMM816C,
814 cvtSS168C, cvtSM168C, cvtMS168C, cvtMM168C,
815 cvtSS1616C, cvtSM1616C, cvtMS1616C, cvtMM1616C,
816 };
817
818 /***********************************************************************
819 * PCM_DriverDetails
820 *
821 */
822 static LRESULT PCM_DriverDetails(PACMDRIVERDETAILSW add)
823 {
824 TRACE("(%p)\n", add);
825
826 add->fccType = ACMDRIVERDETAILS_FCCTYPE_AUDIOCODEC;
827 add->fccComp = ACMDRIVERDETAILS_FCCCOMP_UNDEFINED;
828 add->wMid = 0xFF;
829 add->wPid = 0x00;
830 add->vdwACM = 0x01000000;
831 add->vdwDriver = 0x01000000;
832 add->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
833 add->cFormatTags = 1;
834 add->cFilterTags = 0;
835 add->hicon = NULL;
836 MultiByteToWideChar( CP_ACP, 0, "WINE-PCM", -1,
837 add->szShortName, sizeof(add->szShortName)/sizeof(WCHAR) );
838 MultiByteToWideChar( CP_ACP, 0, "Wine PCM converter", -1,
839 add->szLongName, sizeof(add->szLongName)/sizeof(WCHAR) );
840 MultiByteToWideChar( CP_ACP, 0, "Brought to you by the Wine team...", -1,
841 add->szCopyright, sizeof(add->szCopyright)/sizeof(WCHAR) );
842 MultiByteToWideChar( CP_ACP, 0, "Refer to LICENSE file", -1,
843 add->szLicensing, sizeof(add->szLicensing)/sizeof(WCHAR) );
844 add->szFeatures[0] = 0;
845
846 return MMSYSERR_NOERROR;
847 }
848
849 /***********************************************************************
850 * PCM_FormatTagDetails
851 *
852 */
853 static LRESULT PCM_FormatTagDetails(PACMFORMATTAGDETAILSW aftd, DWORD dwQuery)
854 {
855 TRACE("(%p, %08lx)\n", aftd, dwQuery);
856
857 switch (dwQuery) {
858 case ACM_FORMATTAGDETAILSF_INDEX:
859 if (aftd->dwFormatTagIndex != 0) {
860 WARN("not possible\n");
861 return ACMERR_NOTPOSSIBLE;
862 }
863 break;
864 case ACM_FORMATTAGDETAILSF_FORMATTAG:
865 if (aftd->dwFormatTag != WAVE_FORMAT_PCM) {
866 WARN("not possible\n");
867 return ACMERR_NOTPOSSIBLE;
868 }
869 break;
870 case ACM_FORMATTAGDETAILSF_LARGESTSIZE:
871 if (aftd->dwFormatTag != WAVE_FORMAT_UNKNOWN &&
872 aftd->dwFormatTag != WAVE_FORMAT_PCM) {
873 WARN("not possible\n");
874 return ACMERR_NOTPOSSIBLE;
875 }
876 break;
877 default:
878 WARN("Unsupported query %08lx\n", dwQuery);
879 return MMSYSERR_NOTSUPPORTED;
880 }
881
882 aftd->dwFormatTagIndex = 0;
883 aftd->dwFormatTag = WAVE_FORMAT_PCM;
884 aftd->cbFormatSize = sizeof(PCMWAVEFORMAT);
885 aftd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
886 aftd->cStandardFormats = NUM_PCM_FORMATS;
887 aftd->szFormatTag[0] = 0;
888
889 return MMSYSERR_NOERROR;
890 }
891
892 /***********************************************************************
893 * PCM_FormatDetails
894 *
895 */
896 static LRESULT PCM_FormatDetails(PACMFORMATDETAILSW afd, DWORD dwQuery)
897 {
898 TRACE("(%p, %08lx)\n", afd, dwQuery);
899
900 switch (dwQuery) {
901 case ACM_FORMATDETAILSF_FORMAT:
902 if (PCM_GetFormatIndex(afd->pwfx) == 0xFFFFFFFF) {
903 return ACMERR_NOTPOSSIBLE;
904 WARN("not possible\n");
905 }
906 break;
907 case ACM_FORMATDETAILSF_INDEX:
908 assert(afd->dwFormatIndex < NUM_PCM_FORMATS);
909 afd->pwfx->wFormatTag = WAVE_FORMAT_PCM;
910 afd->pwfx->nChannels = PCM_Formats[afd->dwFormatIndex].nChannels;
911 afd->pwfx->nSamplesPerSec = PCM_Formats[afd->dwFormatIndex].rate;
912 afd->pwfx->wBitsPerSample = PCM_Formats[afd->dwFormatIndex].nBits;
913 /* native MSACM uses a PCMWAVEFORMAT structure, so cbSize is not
914 * accessible afd->pwfx->cbSize = 0;
915 */
916 afd->pwfx->nBlockAlign =
917 (afd->pwfx->nChannels * afd->pwfx->wBitsPerSample) / 8;
918 afd->pwfx->nAvgBytesPerSec =
919 afd->pwfx->nSamplesPerSec * afd->pwfx->nBlockAlign;
920 break;
921 default:
922 WARN("Unsupported query %08lx\n", dwQuery);
923 return MMSYSERR_NOTSUPPORTED;
924 }
925
926 afd->dwFormatTag = WAVE_FORMAT_PCM;
927 afd->fdwSupport = ACMDRIVERDETAILS_SUPPORTF_CONVERTER;
928 afd->szFormat[0] = 0; /* let MSACM format this for us... */
929 afd->cbwfx = sizeof(PCMWAVEFORMAT);
930
931 return MMSYSERR_NOERROR;
932 }
933
934 /***********************************************************************
935 * PCM_FormatSuggest
936 *
937 */
938 static LRESULT PCM_FormatSuggest(PACMDRVFORMATSUGGEST adfs)
939 {
940 TRACE("(%p)\n", adfs);
941
942 /* some tests ... */
943 if (adfs->cbwfxSrc < sizeof(PCMWAVEFORMAT) ||
944 adfs->cbwfxDst < sizeof(PCMWAVEFORMAT) ||
945 PCM_GetFormatIndex(adfs->pwfxSrc) == 0xFFFFFFFF) {
946 WARN("not possible\n");
947 return ACMERR_NOTPOSSIBLE;
948 }
949
950 /* is no suggestion for destination, then copy source value */
951 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NCHANNELS)) {
952 adfs->pwfxDst->nChannels = adfs->pwfxSrc->nChannels;
953 }
954 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_NSAMPLESPERSEC)) {
955 adfs->pwfxDst->nSamplesPerSec = adfs->pwfxSrc->nSamplesPerSec;
956 }
957 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WBITSPERSAMPLE)) {
958 adfs->pwfxDst->wBitsPerSample = adfs->pwfxSrc->wBitsPerSample;
959 }
960 if (!(adfs->fdwSuggest & ACM_FORMATSUGGESTF_WFORMATTAG)) {
961 if (adfs->pwfxSrc->wFormatTag != WAVE_FORMAT_PCM) {
962 WARN("not possible\n");
963 return ACMERR_NOTPOSSIBLE;
964 }
965 adfs->pwfxDst->wFormatTag = adfs->pwfxSrc->wFormatTag;
966 }
967 /* check if result is ok */
968 if (PCM_GetFormatIndex(adfs->pwfxDst) == 0xFFFFFFFF) {
969 WARN("not possible\n");
970 return ACMERR_NOTPOSSIBLE;
971 }
972
973 /* recompute other values */
974 adfs->pwfxDst->nBlockAlign = (adfs->pwfxDst->nChannels * adfs->pwfxDst->wBitsPerSample) / 8;
975 adfs->pwfxDst->nAvgBytesPerSec = adfs->pwfxDst->nSamplesPerSec * adfs->pwfxDst->nBlockAlign;
976
977 return MMSYSERR_NOERROR;
978 }
979
980 /***********************************************************************
981 * PCM_Reset
982 *
983 */
984 static void PCM_Reset(AcmPcmData* apd, int srcNumBits)
985 {
986 TRACE("(%p, %d)\n", apd, srcNumBits);
987
988 apd->srcPos = 0;
989 apd->dstPos = 0;
990 /* initialize with neutral value */
991 if (srcNumBits == 16) {
992 apd->last[0].s = 0;
993 apd->last[1].s = 0;
994 } else {
995 apd->last[0].b = (BYTE)0x80;
996 apd->last[1].b = (BYTE)0x80;
997 }
998 }
999
1000 /***********************************************************************
1001 * PCM_StreamOpen
1002 *
1003 */
1004 static LRESULT PCM_StreamOpen(PACMDRVSTREAMINSTANCE adsi)
1005 {
1006 AcmPcmData* apd;
1007 int idx = 0;
1008
1009 TRACE("(%p)\n", adsi);
1010
1011 assert(!(adsi->fdwOpen & ACM_STREAMOPENF_ASYNC));
1012
1013 if (PCM_GetFormatIndex(adsi->pwfxSrc) == 0xFFFFFFFF ||
1014 PCM_GetFormatIndex(adsi->pwfxDst) == 0xFFFFFFFF) {
1015 WARN("not possible\n");
1016 return ACMERR_NOTPOSSIBLE;
1017 }
1018
1019 apd = HeapAlloc(GetProcessHeap(), 0, sizeof(AcmPcmData));
1020 if (apd == 0) {
1021 WARN("no memory\n");
1022 return MMSYSERR_NOMEM;
1023 }
1024
1025 adsi->dwDriver = (DWORD)apd;
1026 adsi->fdwDriver = 0;
1027
1028 if (adsi->pwfxSrc->wBitsPerSample == 16) idx += 8;
1029 if (adsi->pwfxDst->wBitsPerSample == 16) idx += 4;
1030 if (adsi->pwfxSrc->nChannels == 1) idx += 2;
1031 if (adsi->pwfxDst->nChannels == 1) idx += 1;
1032
1033 if (adsi->pwfxSrc->nSamplesPerSec == adsi->pwfxDst->nSamplesPerSec) {
1034 apd->cvt.cvtKeepRate = PCM_ConvertKeepRate[idx];
1035 } else {
1036 adsi->fdwDriver |= PCM_RESAMPLE;
1037 apd->dstIncr = (double)(adsi->pwfxSrc->nSamplesPerSec) /
1038 (double)(adsi->pwfxDst->nSamplesPerSec);
1039 PCM_Reset(apd, adsi->pwfxSrc->wBitsPerSample);
1040 apd->cvt.cvtChangeRate = PCM_ConvertChangeRate[idx];
1041 }
1042
1043 return MMSYSERR_NOERROR;
1044 }
1045
1046 /***********************************************************************
1047 * PCM_StreamClose
1048 *
1049 */
1050 static LRESULT PCM_StreamClose(PACMDRVSTREAMINSTANCE adsi)
1051 {
1052 TRACE("(%p)\n", adsi);
1053
1054 HeapFree(GetProcessHeap(), 0, (void*)adsi->dwDriver);
1055 return MMSYSERR_NOERROR;
1056 }
1057
1058 /***********************************************************************
1059 * PCM_round
1060 *
1061 */
1062 static inline DWORD PCM_round(DWORD a, DWORD b, DWORD c)
1063 {
1064 assert(c);
1065 /* to be sure, always return an entire number of c... */
1066 return ((double)a * (double)b + (double)c - 1) / (double)c;
1067 }
1068
1069 /***********************************************************************
1070 * PCM_StreamSize
1071 *
1072 */
1073 static LRESULT PCM_StreamSize(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMSIZE adss)
1074 {
1075 DWORD srcMask = ~(adsi->pwfxSrc->nBlockAlign - 1);
1076 DWORD dstMask = ~(adsi->pwfxDst->nBlockAlign - 1);
1077
1078 TRACE("(%p, %p)\n", adsi, adss);
1079
1080 switch (adss->fdwSize) {
1081 case ACM_STREAMSIZEF_DESTINATION:
1082 /* cbDstLength => cbSrcLength */
1083 adss->cbSrcLength = PCM_round(adss->cbDstLength & dstMask,
1084 adsi->pwfxSrc->nAvgBytesPerSec,
1085 adsi->pwfxDst->nAvgBytesPerSec) & srcMask;
1086 break;
1087 case ACM_STREAMSIZEF_SOURCE:
1088 /* cbSrcLength => cbDstLength */
1089 adss->cbDstLength = PCM_round(adss->cbSrcLength & srcMask,
1090 adsi->pwfxDst->nAvgBytesPerSec,
1091 adsi->pwfxSrc->nAvgBytesPerSec) & dstMask;
1092 break;
1093 default:
1094 WARN("Unsupported query %08lx\n", adss->fdwSize);
1095 return MMSYSERR_NOTSUPPORTED;
1096 }
1097 return MMSYSERR_NOERROR;
1098 }
1099
1100 /***********************************************************************
1101 * PCM_StreamConvert
1102 *
1103 */
1104 static LRESULT PCM_StreamConvert(PACMDRVSTREAMINSTANCE adsi, PACMDRVSTREAMHEADER adsh)
1105 {
1106 AcmPcmData* apd = (AcmPcmData*)adsi->dwDriver;
1107 DWORD nsrc = NUM_OF(adsh->cbSrcLength, adsi->pwfxSrc->nBlockAlign);
1108 DWORD ndst = NUM_OF(adsh->cbDstLength, adsi->pwfxDst->nBlockAlign);
1109
1110 TRACE("(%p, %p)\n", adsi, adsh);
1111
1112 TRACE("nsrc=%ld,adsh->cbSrcLength=%ld\n", nsrc, adsh->cbSrcLength);
1113 TRACE("ndst=%ld,adsh->cbDstLength=%ld\n", ndst, adsh->cbDstLength);
1114 TRACE("src [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
1115 adsi->pwfxSrc->wFormatTag, adsi->pwfxSrc->nChannels, adsi->pwfxSrc->nSamplesPerSec, adsi->pwfxSrc->nAvgBytesPerSec,
1116 adsi->pwfxSrc->nBlockAlign, adsi->pwfxSrc->wBitsPerSample, adsi->pwfxSrc->cbSize);
1117 TRACE("dst [wFormatTag=%u, nChannels=%u, nSamplesPerSec=%lu, nAvgBytesPerSec=%lu, nBlockAlign=%u, wBitsPerSample=%u, cbSize=%u]\n",
1118 adsi->pwfxDst->wFormatTag, adsi->pwfxDst->nChannels, adsi->pwfxDst->nSamplesPerSec, adsi->pwfxDst->nAvgBytesPerSec,
1119 adsi->pwfxDst->nBlockAlign, adsi->pwfxDst->wBitsPerSample, adsi->pwfxDst->cbSize);
1120
1121 if (adsh->fdwConvert &
1122 ~(ACM_STREAMCONVERTF_BLOCKALIGN|
1123 ACM_STREAMCONVERTF_END|
1124 ACM_STREAMCONVERTF_START)) {
1125 FIXME("Unsupported fdwConvert (%08lx), ignoring it\n", adsh->fdwConvert);
1126 }
1127 /* ACM_STREAMCONVERTF_BLOCKALIGN
1128 * currently all conversions are block aligned, so do nothing for this flag
1129 * ACM_STREAMCONVERTF_END
1130 * no pending data, so do nothing for this flag
1131 */
1132 if ((adsh->fdwConvert & ACM_STREAMCONVERTF_START) &&
1133 (adsi->fdwDriver & PCM_RESAMPLE)) {
1134 PCM_Reset(apd, adsi->pwfxSrc->wBitsPerSample);
1135 }
1136
1137 /* do the job */
1138 if (adsi->fdwDriver & PCM_RESAMPLE) {
1139 DWORD nsrc2 = nsrc;
1140 DWORD ndst2 = ndst;
1141
1142 apd->cvt.cvtChangeRate(apd, adsh->pbSrc, &nsrc2, adsh->pbDst, &ndst2);
1143 nsrc -= nsrc2;
1144 ndst -= ndst2;
1145 } else {
1146 if (nsrc < ndst) ndst = nsrc; else nsrc = ndst;
1147
1148 /* nsrc is now equal to ndst */
1149 apd->cvt.cvtKeepRate(adsh->pbSrc, nsrc, adsh->pbDst);
1150 }
1151
1152 adsh->cbSrcLengthUsed = nsrc * adsi->pwfxSrc->nBlockAlign;
1153 adsh->cbDstLengthUsed = ndst * adsi->pwfxDst->nBlockAlign;
1154
1155 return MMSYSERR_NOERROR;
1156 }
1157
1158 /**************************************************************************
1159 * DriverProc (MSACM32.@)
1160 */
1161 LRESULT CALLBACK PCM_DriverProc(DWORD dwDevID, HDRVR hDriv, UINT wMsg,
1162 LPARAM dwParam1, LPARAM dwParam2)
1163 {
1164 TRACE("(%08lx %08lx %u %08lx %08lx);\n",
1165 dwDevID, (DWORD)hDriv, wMsg, dwParam1, dwParam2);
1166
1167 switch (wMsg) {
1168 case DRV_LOAD: return 1;
1169 case DRV_FREE: return 1;
1170 case DRV_OPEN: return PCM_drvOpen((LPSTR)dwParam1, (PACMDRVOPENDESCW)dwParam2);
1171 case DRV_CLOSE: return PCM_drvClose(dwDevID);
1172 case DRV_ENABLE: return 1;
1173 case DRV_DISABLE: return 1;
1174 case DRV_QUERYCONFIGURE: return 1;
1175 case DRV_CONFIGURE: MessageBoxA(0, "MSACM PCM filter !", "Wine Driver", MB_OK); return 1;
1176 case DRV_INSTALL: return DRVCNF_RESTART;
1177 case DRV_REMOVE: return DRVCNF_RESTART;
1178
1179 case ACMDM_DRIVER_NOTIFY:
1180 /* no caching from other ACM drivers is done so far */
1181 return MMSYSERR_NOERROR;
1182
1183 case ACMDM_DRIVER_DETAILS:
1184 return PCM_DriverDetails((PACMDRIVERDETAILSW)dwParam1);
1185
1186 case ACMDM_FORMATTAG_DETAILS:
1187 return PCM_FormatTagDetails((PACMFORMATTAGDETAILSW)dwParam1, dwParam2);
1188
1189 case ACMDM_FORMAT_DETAILS:
1190 return PCM_FormatDetails((PACMFORMATDETAILSW)dwParam1, dwParam2);
1191
1192 case ACMDM_FORMAT_SUGGEST:
1193 return PCM_FormatSuggest((PACMDRVFORMATSUGGEST)dwParam1);
1194
1195 case ACMDM_STREAM_OPEN:
1196 return PCM_StreamOpen((PACMDRVSTREAMINSTANCE)dwParam1);
1197
1198 case ACMDM_STREAM_CLOSE:
1199 return PCM_StreamClose((PACMDRVSTREAMINSTANCE)dwParam1);
1200
1201 case ACMDM_STREAM_SIZE:
1202 return PCM_StreamSize((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMSIZE)dwParam2);
1203
1204 case ACMDM_STREAM_CONVERT:
1205 return PCM_StreamConvert((PACMDRVSTREAMINSTANCE)dwParam1, (PACMDRVSTREAMHEADER)dwParam2);
1206
1207 case ACMDM_HARDWARE_WAVE_CAPS_INPUT:
1208 case ACMDM_HARDWARE_WAVE_CAPS_OUTPUT:
1209 /* this converter is not a hardware driver */
1210 case ACMDM_FILTERTAG_DETAILS:
1211 case ACMDM_FILTER_DETAILS:
1212 /* this converter is not a filter */
1213 case ACMDM_STREAM_RESET:
1214 /* only needed for asynchronous driver... we aren't, so just say it */
1215 case ACMDM_STREAM_PREPARE:
1216 case ACMDM_STREAM_UNPREPARE:
1217 /* nothing special to do here... so don't do anything */
1218 return MMSYSERR_NOTSUPPORTED;
1219
1220 default:
1221 return DefDriverProc(dwDevID, hDriv, wMsg, dwParam1, dwParam2);
1222 }
1223 return 0;
1224 }
Quick hack tree for wine patches julliard doesn't want to commit