4 This file is part of PulseAudio.
6 Copyright 2006 Lennart Poettering
7 Copyright 2006-2007 Pierre Ossman <ossman@cendio.se> for Cendio AB
9 PulseAudio is free software; you can redistribute it and/or modify
10 it under the terms of the GNU Lesser General Public License as published
11 by the Free Software Foundation; either version 2 of the License,
12 or (at your option) any later version.
14 PulseAudio is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with PulseAudio; if not, write to the Free Software
21 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
33 #include <pulse/mainloop-api.h>
35 #include <pulse/xmalloc.h>
36 #include <pulse/timeval.h>
38 #include <pulsecore/sink.h>
39 #include <pulsecore/source.h>
40 #include <pulsecore/module.h>
41 #include <pulsecore/modargs.h>
42 #include <pulsecore/sample-util.h>
43 #include <pulsecore/core-util.h>
44 #include <pulsecore/log.h>
46 #include "module-waveout-symdef.h"
48 PA_MODULE_AUTHOR("Pierre Ossman")
49 PA_MODULE_DESCRIPTION("Windows waveOut Sink/Source")
50 PA_MODULE_VERSION(PACKAGE_VERSION)
52 "sink_name=<name for the sink> "
53 "source_name=<name for the source> "
54 "device=<device number> "
55 "record=<enable source?> "
56 "playback=<enable sink?> "
57 "format=<sample format> "
58 "channels=<number of channels> "
60 "fragments=<number of fragments> "
61 "fragment_size=<fragment size> "
62 "channel_map=<channel map>")
64 #define DEFAULT_SINK_NAME "wave_output"
65 #define DEFAULT_SOURCE_NAME "wave_input"
67 #define WAVEOUT_MAX_VOLUME 0xFFFF
74 pa_defer_event *defer;
75 pa_usec_t poll_timeout;
77 uint32_t fragments, fragment_size;
79 uint32_t free_ofrags, free_ifrags;
84 int cur_ohdr, cur_ihdr;
85 WAVEHDR *ohdrs, *ihdrs;
91 CRITICAL_SECTION crit;
94 static const char* const valid_modargs[] = {
109 static void update_usage(struct userdata *u) {
110 pa_module_set_used(u->module,
111 (u->sink ? pa_sink_used_by(u->sink) : 0) +
112 (u->source ? pa_source_used_by(u->source) : 0));
115 static void do_write(struct userdata *u)
118 pa_memchunk memchunk;
125 EnterCriticalSection(&u->crit);
126 free_frags = u->free_ofrags;
127 LeaveCriticalSection(&u->crit);
129 if (!u->sink_underflow && (free_frags == u->fragments))
130 pa_log_debug("WaveOut underflow!");
133 hdr = &u->ohdrs[u->cur_ohdr];
134 if (hdr->dwFlags & WHDR_PREPARED)
135 waveOutUnprepareHeader(u->hwo, hdr, sizeof(WAVEHDR));
137 hdr->dwBufferLength = 0;
138 while (hdr->dwBufferLength < u->fragment_size) {
141 len = u->fragment_size - hdr->dwBufferLength;
143 if (pa_sink_render(u->sink, len, &memchunk) < 0)
146 assert(memchunk.memblock);
147 assert(memchunk.memblock->data);
148 assert(memchunk.length);
150 if (memchunk.length < len)
151 len = memchunk.length;
153 memcpy(hdr->lpData + hdr->dwBufferLength,
154 (char*)memchunk.memblock->data + memchunk.index, len);
156 hdr->dwBufferLength += len;
158 pa_memblock_unref(memchunk.memblock);
159 memchunk.memblock = NULL;
162 /* Insufficient data in sink buffer? */
163 if (hdr->dwBufferLength == 0) {
164 u->sink_underflow = 1;
168 u->sink_underflow = 0;
170 res = waveOutPrepareHeader(u->hwo, hdr, sizeof(WAVEHDR));
171 if (res != MMSYSERR_NOERROR) {
172 pa_log_error(__FILE__ ": ERROR: Unable to prepare waveOut block: %d",
175 res = waveOutWrite(u->hwo, hdr, sizeof(WAVEHDR));
176 if (res != MMSYSERR_NOERROR) {
177 pa_log_error(__FILE__ ": ERROR: Unable to write waveOut block: %d",
181 u->written_bytes += hdr->dwBufferLength;
183 EnterCriticalSection(&u->crit);
185 LeaveCriticalSection(&u->crit);
189 u->cur_ohdr %= u->fragments;
193 static void do_read(struct userdata *u)
196 pa_memchunk memchunk;
203 EnterCriticalSection(&u->crit);
205 free_frags = u->free_ifrags;
208 LeaveCriticalSection(&u->crit);
210 if (free_frags == u->fragments)
211 pa_log_debug("WaveIn overflow!");
214 hdr = &u->ihdrs[u->cur_ihdr];
215 if (hdr->dwFlags & WHDR_PREPARED)
216 waveInUnprepareHeader(u->hwi, hdr, sizeof(WAVEHDR));
218 if (hdr->dwBytesRecorded) {
219 memchunk.memblock = pa_memblock_new(u->core->mempool, hdr->dwBytesRecorded);
220 assert(memchunk.memblock);
222 memcpy((char*)memchunk.memblock->data, hdr->lpData, hdr->dwBytesRecorded);
224 memchunk.length = memchunk.memblock->length = hdr->dwBytesRecorded;
227 pa_source_post(u->source, &memchunk);
228 pa_memblock_unref(memchunk.memblock);
231 res = waveInPrepareHeader(u->hwi, hdr, sizeof(WAVEHDR));
232 if (res != MMSYSERR_NOERROR) {
233 pa_log_error(__FILE__ ": ERROR: Unable to prepare waveIn block: %d",
236 res = waveInAddBuffer(u->hwi, hdr, sizeof(WAVEHDR));
237 if (res != MMSYSERR_NOERROR) {
238 pa_log_error(__FILE__ ": ERROR: Unable to add waveIn block: %d",
244 u->cur_ihdr %= u->fragments;
248 static void poll_cb(pa_mainloop_api*a, pa_time_event *e, const struct timeval *tv, void *userdata) {
249 struct userdata *u = userdata;
259 pa_gettimeofday(&ntv);
260 pa_timeval_add(&ntv, u->poll_timeout);
262 a->time_restart(e, &ntv);
265 static void defer_cb(pa_mainloop_api*a, pa_defer_event *e, void *userdata) {
266 struct userdata *u = userdata;
270 a->defer_enable(e, 0);
276 static void CALLBACK chunk_done_cb(HWAVEOUT hwo, UINT msg, DWORD_PTR inst, DWORD param1, DWORD param2) {
277 struct userdata *u = (struct userdata *)inst;
282 EnterCriticalSection(&u->crit);
285 assert(u->free_ofrags <= u->fragments);
287 LeaveCriticalSection(&u->crit);
290 static void CALLBACK chunk_ready_cb(HWAVEIN hwi, UINT msg, DWORD_PTR inst, DWORD param1, DWORD param2) {
291 struct userdata *u = (struct userdata *)inst;
296 EnterCriticalSection(&u->crit);
299 assert(u->free_ifrags <= u->fragments);
301 LeaveCriticalSection(&u->crit);
304 static pa_usec_t sink_get_latency_cb(pa_sink *s) {
305 struct userdata *u = s->userdata;
308 assert(s && u && u->sink);
310 memset(&mmt, 0, sizeof(mmt));
311 mmt.wType = TIME_BYTES;
312 if (waveOutGetPosition(u->hwo, &mmt, sizeof(mmt)) == MMSYSERR_NOERROR)
313 return pa_bytes_to_usec(u->written_bytes - mmt.u.cb, &s->sample_spec);
315 EnterCriticalSection(&u->crit);
317 free_frags = u->free_ofrags;
319 LeaveCriticalSection(&u->crit);
321 return pa_bytes_to_usec((u->fragments - free_frags) * u->fragment_size,
326 static pa_usec_t source_get_latency_cb(pa_source *s) {
328 struct userdata *u = s->userdata;
330 assert(s && u && u->sink);
332 EnterCriticalSection(&u->crit);
334 free_frags = u->free_ifrags;
336 LeaveCriticalSection(&u->crit);
338 r += pa_bytes_to_usec((free_frags + 1) * u->fragment_size, &s->sample_spec);
343 static void notify_sink_cb(pa_sink *s) {
344 struct userdata *u = s->userdata;
347 u->core->mainloop->defer_enable(u->defer, 1);
350 static void notify_source_cb(pa_source *s) {
351 struct userdata *u = s->userdata;
354 u->core->mainloop->defer_enable(u->defer, 1);
357 static int sink_get_hw_volume_cb(pa_sink *s) {
358 struct userdata *u = s->userdata;
360 pa_volume_t left, right;
362 if (waveOutGetVolume(u->hwo, &vol) != MMSYSERR_NOERROR)
365 left = (vol & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME;
366 right = ((vol >> 16) & 0xFFFF) * PA_VOLUME_NORM / WAVEOUT_MAX_VOLUME;
368 /* Windows supports > 2 channels, except for volume control */
369 if (s->hw_volume.channels > 2)
370 pa_cvolume_set(&s->hw_volume, s->hw_volume.channels, (left + right)/2);
372 s->hw_volume.values[0] = left;
373 if (s->hw_volume.channels > 1)
374 s->hw_volume.values[1] = right;
379 static int sink_set_hw_volume_cb(pa_sink *s) {
380 struct userdata *u = s->userdata;
383 vol = s->hw_volume.values[0] * WAVEOUT_MAX_VOLUME / PA_VOLUME_NORM;
384 if (s->hw_volume.channels > 1)
385 vol |= (s->hw_volume.values[0] * WAVEOUT_MAX_VOLUME / PA_VOLUME_NORM) << 16;
387 if (waveOutSetVolume(u->hwo, vol) != MMSYSERR_NOERROR)
393 static int ss_to_waveformat(pa_sample_spec *ss, LPWAVEFORMATEX wf) {
394 wf->wFormatTag = WAVE_FORMAT_PCM;
396 if (ss->channels > 2) {
397 pa_log_error("ERROR: More than two channels not supported.");
401 wf->nChannels = ss->channels;
410 pa_log_error("ERROR: Unsupported sample rate.");
414 wf->nSamplesPerSec = ss->rate;
416 if (ss->format == PA_SAMPLE_U8)
417 wf->wBitsPerSample = 8;
418 else if (ss->format == PA_SAMPLE_S16NE)
419 wf->wBitsPerSample = 16;
421 pa_log_error("ERROR: Unsupported sample format.");
425 wf->nBlockAlign = wf->nChannels * wf->wBitsPerSample/8;
426 wf->nAvgBytesPerSec = wf->nSamplesPerSec * wf->nBlockAlign;
433 int pa__init(pa_core *c, pa_module*m) {
434 struct userdata *u = NULL;
435 HWAVEOUT hwo = INVALID_HANDLE_VALUE;
436 HWAVEIN hwi = INVALID_HANDLE_VALUE;
438 int nfrags, frag_size;
439 int record = 1, playback = 1;
443 pa_modargs *ma = NULL;
449 if (!(ma = pa_modargs_new(m->argument, valid_modargs))) {
450 pa_log("failed to parse module arguments.");
454 if (pa_modargs_get_value_boolean(ma, "record", &record) < 0 || pa_modargs_get_value_boolean(ma, "playback", &playback) < 0) {
455 pa_log("record= and playback= expect boolean argument.");
459 if (!playback && !record) {
460 pa_log("neither playback nor record enabled for device.");
464 device = WAVE_MAPPER;
465 if (pa_modargs_get_value_u32(ma, "device", &device) < 0) {
466 pa_log("failed to parse device argument");
472 if (pa_modargs_get_value_s32(ma, "fragments", &nfrags) < 0 || pa_modargs_get_value_s32(ma, "fragment_size", &frag_size) < 0) {
473 pa_log("failed to parse fragments arguments");
477 ss = c->default_sample_spec;
478 if (pa_modargs_get_sample_spec_and_channel_map(ma, &ss, &map, PA_CHANNEL_MAP_WAVEEX) < 0) {
479 pa_log("failed to parse sample specification");
483 if (ss_to_waveformat(&ss, &wf) < 0)
486 u = pa_xmalloc(sizeof(struct userdata));
489 if (waveInOpen(&hwi, device, &wf, (DWORD_PTR)chunk_ready_cb, (DWORD_PTR)u, CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
490 pa_log("failed to open waveIn");
493 if (waveInStart(hwi) != MMSYSERR_NOERROR) {
494 pa_log("failed to start waveIn");
497 pa_log_debug("Opened waveIn subsystem.");
501 if (waveOutOpen(&hwo, device, &wf, (DWORD_PTR)chunk_done_cb, (DWORD_PTR)u, CALLBACK_FUNCTION) != MMSYSERR_NOERROR) {
502 pa_log("failed to open waveOut");
505 pa_log_debug("Opened waveOut subsystem.");
508 InitializeCriticalSection(&u->crit);
510 if (hwi != INVALID_HANDLE_VALUE) {
511 u->source = pa_source_new(c, __FILE__, pa_modargs_get_value(ma, "source_name", DEFAULT_SOURCE_NAME), 0, &ss, &map);
513 u->source->userdata = u;
514 u->source->notify = notify_source_cb;
515 u->source->get_latency = source_get_latency_cb;
516 pa_source_set_owner(u->source, m);
517 pa_source_set_description(u->source, "Windows waveIn PCM");
518 u->source->is_hardware = 1;
522 if (hwo != INVALID_HANDLE_VALUE) {
523 u->sink = pa_sink_new(c, __FILE__, pa_modargs_get_value(ma, "sink_name", DEFAULT_SINK_NAME), 0, &ss, &map);
525 u->sink->notify = notify_sink_cb;
526 u->sink->get_latency = sink_get_latency_cb;
527 u->sink->get_hw_volume = sink_get_hw_volume_cb;
528 u->sink->set_hw_volume = sink_set_hw_volume_cb;
529 u->sink->userdata = u;
530 pa_sink_set_owner(u->sink, m);
531 pa_sink_set_description(u->sink, "Windows waveOut PCM");
532 u->sink->is_hardware = 1;
536 assert(u->source || u->sink);
542 u->fragments = nfrags;
543 u->free_ifrags = u->fragments;
544 u->free_ofrags = u->fragments;
545 u->fragment_size = frag_size - (frag_size % pa_frame_size(&ss));
547 u->written_bytes = 0;
548 u->sink_underflow = 1;
550 u->poll_timeout = pa_bytes_to_usec(u->fragments * u->fragment_size / 10, &ss);
552 pa_gettimeofday(&tv);
553 pa_timeval_add(&tv, u->poll_timeout);
555 u->event = c->mainloop->time_new(c->mainloop, &tv, poll_cb, u);
558 u->defer = c->mainloop->defer_new(c->mainloop, defer_cb, u);
560 c->mainloop->defer_enable(u->defer, 0);
564 u->ihdrs = pa_xmalloc0(sizeof(WAVEHDR) * u->fragments);
566 u->ohdrs = pa_xmalloc0(sizeof(WAVEHDR) * u->fragments);
568 for (i = 0;i < u->fragments;i++) {
569 u->ihdrs[i].dwBufferLength = u->fragment_size;
570 u->ohdrs[i].dwBufferLength = u->fragment_size;
571 u->ihdrs[i].lpData = pa_xmalloc(u->fragment_size);
573 u->ohdrs[i].lpData = pa_xmalloc(u->fragment_size);
582 /* Read mixer settings */
584 sink_get_hw_volume_cb(u->sink);
589 if (hwi != INVALID_HANDLE_VALUE)
592 if (hwo != INVALID_HANDLE_VALUE)
604 void pa__done(pa_core *c, pa_module*m) {
610 if (!(u = m->userdata))
614 c->mainloop->time_free(u->event);
617 c->mainloop->defer_free(u->defer);
620 pa_sink_disconnect(u->sink);
621 pa_sink_unref(u->sink);
625 pa_source_disconnect(u->source);
626 pa_source_unref(u->source);
629 if (u->hwi != INVALID_HANDLE_VALUE) {
634 if (u->hwo != INVALID_HANDLE_VALUE) {
635 waveOutReset(u->hwo);
636 waveOutClose(u->hwo);
639 for (i = 0;i < u->fragments;i++) {
640 pa_xfree(u->ihdrs[i].lpData);
641 pa_xfree(u->ohdrs[i].lpData);
647 DeleteCriticalSection(&u->crit);