28 #include "../../SDL_internal.h" 31 #if SDL_AUDIO_DRIVER_PULSEAUDIO 39 #include <sys/types.h> 41 #include <pulse/pulseaudio.h> 45 #include "../SDL_audiomem.h" 46 #include "../SDL_audio_c.h" 50 #if (PA_API_VERSION < 12) 52 static SDL_INLINE int PA_CONTEXT_IS_GOOD(pa_context_state_t
x) {
54 x == PA_CONTEXT_CONNECTING ||
55 x == PA_CONTEXT_AUTHORIZING ||
56 x == PA_CONTEXT_SETTING_NAME ||
57 x == PA_CONTEXT_READY;
60 static SDL_INLINE int PA_STREAM_IS_GOOD(pa_stream_state_t
x) {
62 x == PA_STREAM_CREATING ||
68 static const char *(*PULSEAUDIO_pa_get_library_version) (
void);
69 static pa_channel_map *(*PULSEAUDIO_pa_channel_map_init_auto) (
70 pa_channel_map *, unsigned, pa_channel_map_def_t);
71 static const char * (*PULSEAUDIO_pa_strerror) (int);
72 static pa_mainloop * (*PULSEAUDIO_pa_mainloop_new) (
void);
73 static pa_mainloop_api * (*PULSEAUDIO_pa_mainloop_get_api) (pa_mainloop *);
74 static int (*PULSEAUDIO_pa_mainloop_iterate) (pa_mainloop *, int,
int *);
75 static int (*PULSEAUDIO_pa_mainloop_run) (pa_mainloop *,
int *);
76 static void (*PULSEAUDIO_pa_mainloop_quit) (pa_mainloop *, int);
77 static void (*PULSEAUDIO_pa_mainloop_free) (pa_mainloop *);
79 static pa_operation_state_t (*PULSEAUDIO_pa_operation_get_state) (
81 static void (*PULSEAUDIO_pa_operation_cancel) (pa_operation *);
82 static void (*PULSEAUDIO_pa_operation_unref) (pa_operation *);
84 static pa_context * (*PULSEAUDIO_pa_context_new) (pa_mainloop_api *,
86 static int (*PULSEAUDIO_pa_context_connect) (pa_context *,
const char *,
87 pa_context_flags_t,
const pa_spawn_api *);
88 static pa_operation * (*PULSEAUDIO_pa_context_get_sink_info_list) (pa_context *, pa_sink_info_cb_t,
void *);
89 static pa_operation * (*PULSEAUDIO_pa_context_get_source_info_list) (pa_context *, pa_source_info_cb_t,
void *);
90 static pa_operation * (*PULSEAUDIO_pa_context_get_sink_info_by_index) (pa_context *,
uint32_t, pa_sink_info_cb_t,
void *);
91 static pa_operation * (*PULSEAUDIO_pa_context_get_source_info_by_index) (pa_context *,
uint32_t, pa_source_info_cb_t,
void *);
92 static pa_context_state_t (*PULSEAUDIO_pa_context_get_state) (pa_context *);
93 static pa_operation * (*PULSEAUDIO_pa_context_subscribe) (pa_context *, pa_subscription_mask_t, pa_context_success_cb_t,
void *);
94 static void (*PULSEAUDIO_pa_context_set_subscribe_callback) (pa_context *, pa_context_subscribe_cb_t,
void *);
95 static void (*PULSEAUDIO_pa_context_disconnect) (pa_context *);
96 static void (*PULSEAUDIO_pa_context_unref) (pa_context *);
98 static pa_stream * (*PULSEAUDIO_pa_stream_new) (pa_context *,
const char *,
99 const pa_sample_spec *,
const pa_channel_map *);
100 static int (*PULSEAUDIO_pa_stream_connect_playback) (pa_stream *,
const char *,
101 const pa_buffer_attr *, pa_stream_flags_t, pa_cvolume *, pa_stream *);
102 static pa_stream_state_t (*PULSEAUDIO_pa_stream_get_state) (pa_stream *);
103 static size_t (*PULSEAUDIO_pa_stream_writable_size) (pa_stream *);
104 static int (*PULSEAUDIO_pa_stream_write) (pa_stream *,
const void *,
size_t,
105 pa_free_cb_t,
int64_t, pa_seek_mode_t);
106 static pa_operation * (*PULSEAUDIO_pa_stream_drain) (pa_stream *,
107 pa_stream_success_cb_t,
void *);
108 static int (*PULSEAUDIO_pa_stream_disconnect) (pa_stream *);
109 static void (*PULSEAUDIO_pa_stream_unref) (pa_stream *);
111 static int load_pulseaudio_syms(
void);
114 #ifdef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC 116 static const char *pulseaudio_library = SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC;
117 static void *pulseaudio_handle =
NULL;
120 load_pulseaudio_sym(
const char *fn,
void **
addr)
132 #define SDL_PULSEAUDIO_SYM(x) \ 133 if (!load_pulseaudio_sym(#x, (void **) (char *) &PULSEAUDIO_##x)) return -1 136 UnloadPulseAudioLibrary(
void)
138 if (pulseaudio_handle !=
NULL) {
140 pulseaudio_handle =
NULL;
145 LoadPulseAudioLibrary(
void)
148 if (pulseaudio_handle ==
NULL) {
150 if (pulseaudio_handle ==
NULL) {
154 retval = load_pulseaudio_syms();
156 UnloadPulseAudioLibrary();
165 #define SDL_PULSEAUDIO_SYM(x) PULSEAUDIO_##x = x 168 UnloadPulseAudioLibrary(
void)
173 LoadPulseAudioLibrary(
void)
175 load_pulseaudio_syms();
183 load_pulseaudio_syms(
void)
185 SDL_PULSEAUDIO_SYM(pa_get_library_version);
186 SDL_PULSEAUDIO_SYM(pa_mainloop_new);
187 SDL_PULSEAUDIO_SYM(pa_mainloop_get_api);
188 SDL_PULSEAUDIO_SYM(pa_mainloop_iterate);
189 SDL_PULSEAUDIO_SYM(pa_mainloop_run);
190 SDL_PULSEAUDIO_SYM(pa_mainloop_quit);
191 SDL_PULSEAUDIO_SYM(pa_mainloop_free);
192 SDL_PULSEAUDIO_SYM(pa_operation_get_state);
193 SDL_PULSEAUDIO_SYM(pa_operation_cancel);
194 SDL_PULSEAUDIO_SYM(pa_operation_unref);
195 SDL_PULSEAUDIO_SYM(pa_context_new);
196 SDL_PULSEAUDIO_SYM(pa_context_connect);
197 SDL_PULSEAUDIO_SYM(pa_context_get_sink_info_list);
198 SDL_PULSEAUDIO_SYM(pa_context_get_source_info_list);
199 SDL_PULSEAUDIO_SYM(pa_context_get_sink_info_by_index);
200 SDL_PULSEAUDIO_SYM(pa_context_get_source_info_by_index);
201 SDL_PULSEAUDIO_SYM(pa_context_get_state);
202 SDL_PULSEAUDIO_SYM(pa_context_subscribe);
203 SDL_PULSEAUDIO_SYM(pa_context_set_subscribe_callback);
204 SDL_PULSEAUDIO_SYM(pa_context_disconnect);
205 SDL_PULSEAUDIO_SYM(pa_context_unref);
206 SDL_PULSEAUDIO_SYM(pa_stream_new);
207 SDL_PULSEAUDIO_SYM(pa_stream_connect_playback);
208 SDL_PULSEAUDIO_SYM(pa_stream_get_state);
209 SDL_PULSEAUDIO_SYM(pa_stream_writable_size);
210 SDL_PULSEAUDIO_SYM(pa_stream_write);
211 SDL_PULSEAUDIO_SYM(pa_stream_drain);
212 SDL_PULSEAUDIO_SYM(pa_stream_disconnect);
213 SDL_PULSEAUDIO_SYM(pa_stream_unref);
214 SDL_PULSEAUDIO_SYM(pa_channel_map_init_auto);
215 SDL_PULSEAUDIO_SYM(pa_strerror);
220 squashVersion(
const int major,
const int minor,
const int patch)
222 return ((major & 0xFF) << 16) | ((minor & 0xFF) << 8) | (patch & 0xFF);
229 const char *verstr = PULSEAUDIO_pa_get_library_version();
230 if (verstr !=
NULL) {
232 if (
SDL_sscanf(verstr,
"%d.%d.%d", &maj, &min, &patch) == 3) {
233 if (squashVersion(maj, min, patch) >= squashVersion(0, 9, 15)) {
238 return "SDL Application";
242 WaitForPulseOperation(pa_mainloop *mainloop, pa_operation *o)
247 while (okay && (PULSEAUDIO_pa_operation_get_state(o) == PA_OPERATION_RUNNING)) {
248 okay = (PULSEAUDIO_pa_mainloop_iterate(mainloop, 1,
NULL) >= 0);
250 PULSEAUDIO_pa_operation_unref(o);
255 DisconnectFromPulseServer(pa_mainloop *mainloop, pa_context *context)
258 PULSEAUDIO_pa_context_disconnect(context);
259 PULSEAUDIO_pa_context_unref(context);
261 if (mainloop !=
NULL) {
262 PULSEAUDIO_pa_mainloop_free(mainloop);
267 ConnectToPulseServer_Internal(pa_mainloop **_mainloop, pa_context **_context)
269 pa_mainloop *mainloop =
NULL;
270 pa_context *context =
NULL;
271 pa_mainloop_api *mainloop_api =
NULL;
278 if (!(mainloop = PULSEAUDIO_pa_mainloop_new())) {
282 *_mainloop = mainloop;
284 mainloop_api = PULSEAUDIO_pa_mainloop_get_api(mainloop);
287 context = PULSEAUDIO_pa_context_new(mainloop_api, getAppName());
294 if (PULSEAUDIO_pa_context_connect(context,
NULL, 0,
NULL) < 0) {
295 return SDL_SetError(
"Could not setup connection to PulseAudio");
299 if (PULSEAUDIO_pa_mainloop_iterate(mainloop, 1,
NULL) < 0) {
302 state = PULSEAUDIO_pa_context_get_state(context);
303 if (!PA_CONTEXT_IS_GOOD(state)) {
306 }
while (state != PA_CONTEXT_READY);
312 ConnectToPulseServer(pa_mainloop **_mainloop, pa_context **_context)
314 const int retval = ConnectToPulseServer_Internal(_mainloop, _context);
316 DisconnectFromPulseServer(*_mainloop, *_context);
324 PULSEAUDIO_WaitDevice(
_THIS)
329 if (PULSEAUDIO_pa_context_get_state(h->
context) != PA_CONTEXT_READY ||
330 PULSEAUDIO_pa_stream_get_state(h->
stream) != PA_STREAM_READY ||
331 PULSEAUDIO_pa_mainloop_iterate(h->
mainloop, 1,
NULL) < 0) {
335 if (PULSEAUDIO_pa_stream_writable_size(h->
stream) >= h->
mixlen) {
342 PULSEAUDIO_PlayDevice(
_THIS)
354 stream_drain_complete(pa_stream *
s,
int success,
void *userdata)
360 PULSEAUDIO_WaitDone(
_THIS)
364 pa_operation *o = PULSEAUDIO_pa_stream_drain(h->
stream, stream_drain_complete,
NULL);
366 while (PULSEAUDIO_pa_operation_get_state(o) != PA_OPERATION_DONE) {
367 if (PULSEAUDIO_pa_context_get_state(h->
context) != PA_CONTEXT_READY ||
368 PULSEAUDIO_pa_stream_get_state(h->
stream) != PA_STREAM_READY ||
369 PULSEAUDIO_pa_mainloop_iterate(h->
mainloop, 1,
NULL) < 0) {
370 PULSEAUDIO_pa_operation_cancel(o);
374 PULSEAUDIO_pa_operation_unref(o);
382 PULSEAUDIO_GetDeviceBuf(
_THIS)
384 return (this->hidden->mixbuf);
389 PULSEAUDIO_CloseDevice(
_THIS)
391 if (this->hidden !=
NULL) {
393 SDL_free(this->hidden->device_name);
394 if (this->hidden->stream) {
395 PULSEAUDIO_pa_stream_disconnect(this->hidden->stream);
396 PULSEAUDIO_pa_stream_unref(this->hidden->stream);
398 DisconnectFromPulseServer(this->hidden->mainloop, this->hidden->context);
405 DeviceNameCallback(pa_context *
c,
const pa_sink_info *
i,
int is_last,
void *
data)
408 char **devname = (
char **) data;
418 if (handle ==
NULL) {
422 WaitForPulseOperation(h->
mainloop, PULSEAUDIO_pa_context_get_sink_info_by_index(h->
context, idx, DeviceNameCallback, &h->
device_name));
427 PULSEAUDIO_OpenDevice(
_THIS,
void *handle,
const char *devname,
int iscapture)
431 pa_sample_spec paspec;
432 pa_buffer_attr paattr;
433 pa_channel_map pacmap;
434 pa_stream_flags_t
flags = 0;
440 if (this->hidden ==
NULL) {
443 SDL_memset(this->hidden, 0, (
sizeof *this->hidden));
446 paspec.format = PA_SAMPLE_INVALID;
450 (paspec.format == PA_SAMPLE_INVALID) && test_format;) {
452 fprintf(stderr,
"Trying format 0x%4.4x\n", test_format);
454 switch (test_format) {
456 paspec.format = PA_SAMPLE_U8;
459 paspec.format = PA_SAMPLE_S16LE;
462 paspec.format = PA_SAMPLE_S16BE;
465 paspec.format = PA_SAMPLE_S32LE;
468 paspec.format = PA_SAMPLE_S32BE;
471 paspec.format = PA_SAMPLE_FLOAT32LE;
474 paspec.format = PA_SAMPLE_FLOAT32BE;
477 paspec.format = PA_SAMPLE_INVALID;
480 if (paspec.format == PA_SAMPLE_INVALID) {
484 if (paspec.format == PA_SAMPLE_INVALID) {
485 PULSEAUDIO_CloseDevice(
this);
486 return SDL_SetError(
"Couldn't find any hardware audio formats");
491 #ifdef PA_STREAM_ADJUST_LATENCY 500 PULSEAUDIO_CloseDevice(
this);
509 #ifdef PA_STREAM_ADJUST_LATENCY 511 paattr.tlength = h->
mixlen * 4;
513 paattr.maxlength = -1;
515 paattr.minreq = h->
mixlen;
516 flags = PA_STREAM_ADJUST_LATENCY;
518 paattr.tlength = h->
mixlen*2;
519 paattr.prebuf = h->
mixlen*2;
520 paattr.maxlength = h->
mixlen*2;
521 paattr.minreq = h->
mixlen;
525 PULSEAUDIO_CloseDevice(
this);
526 return SDL_SetError(
"Could not connect to PulseAudio server");
529 if (!FindDeviceName(h, handle)) {
530 PULSEAUDIO_CloseDevice(
this);
531 return SDL_SetError(
"Requested PulseAudio sink missing?");
536 PULSEAUDIO_pa_channel_map_init_auto(&pacmap, this->
spec.
channels,
537 PA_CHANNEL_MAP_WAVEEX);
539 h->
stream = PULSEAUDIO_pa_stream_new(
541 "Simple DirectMedia Layer",
547 PULSEAUDIO_CloseDevice(
this);
548 return SDL_SetError(
"Could not set up PulseAudio stream");
554 flags |= PA_STREAM_DONT_MOVE;
557 if (PULSEAUDIO_pa_stream_connect_playback(h->
stream, h->
device_name, &paattr, flags,
559 PULSEAUDIO_CloseDevice(
this);
560 return SDL_SetError(
"Could not connect PulseAudio stream");
564 if (PULSEAUDIO_pa_mainloop_iterate(h->
mainloop, 1,
NULL) < 0) {
565 PULSEAUDIO_CloseDevice(
this);
568 state = PULSEAUDIO_pa_stream_get_state(h->
stream);
569 if (!PA_STREAM_IS_GOOD(state)) {
570 PULSEAUDIO_CloseDevice(
this);
571 return SDL_SetError(
"Could not connect PulseAudio stream");
573 }
while (state != PA_STREAM_READY);
579 static pa_mainloop *hotplug_mainloop =
NULL;
580 static pa_context *hotplug_context =
NULL;
587 SinkInfoCallback(pa_context *c,
const pa_sink_info *i,
int is_last,
void *data)
596 SourceInfoCallback(pa_context *c,
const pa_source_info *i,
int is_last,
void *data)
600 if (i->monitor_of_sink == PA_INVALID_INDEX) {
608 HotplugCallback(pa_context *c, pa_subscription_event_type_t
t,
uint32_t idx,
void *data)
610 const SDL_bool added = ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_NEW);
611 const SDL_bool removed = ((t & PA_SUBSCRIPTION_EVENT_TYPE_MASK) == PA_SUBSCRIPTION_EVENT_REMOVE);
613 if (added || removed) {
614 const SDL_bool sink = ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SINK);
615 const SDL_bool source = ((t & PA_SUBSCRIPTION_EVENT_FACILITY_MASK) == PA_SUBSCRIPTION_EVENT_SOURCE);
619 PULSEAUDIO_pa_context_get_sink_info_by_index(hotplug_context, idx, SinkInfoCallback,
NULL);
620 }
else if (added && source) {
621 PULSEAUDIO_pa_context_get_source_info_by_index(hotplug_context, idx, SourceInfoCallback,
NULL);
622 }
else if (removed && (sink || source)) {
631 HotplugThread(
void *data)
635 PULSEAUDIO_pa_context_set_subscribe_callback(hotplug_context, HotplugCallback,
NULL);
636 o = PULSEAUDIO_pa_context_subscribe(hotplug_context, PA_SUBSCRIPTION_MASK_SINK | PA_SUBSCRIPTION_MASK_SOURCE,
NULL,
NULL);
637 PULSEAUDIO_pa_operation_unref(o);
638 PULSEAUDIO_pa_mainloop_run(hotplug_mainloop,
NULL);
643 PULSEAUDIO_DetectDevices()
645 WaitForPulseOperation(hotplug_mainloop, PULSEAUDIO_pa_context_get_sink_info_list(hotplug_context, SinkInfoCallback,
NULL));
646 WaitForPulseOperation(hotplug_mainloop, PULSEAUDIO_pa_context_get_source_info_list(hotplug_context, SourceInfoCallback,
NULL));
653 PULSEAUDIO_Deinitialize(
void)
655 if (hotplug_thread) {
656 PULSEAUDIO_pa_mainloop_quit(hotplug_mainloop, 0);
658 hotplug_thread =
NULL;
661 DisconnectFromPulseServer(hotplug_mainloop, hotplug_context);
662 hotplug_mainloop =
NULL;
663 hotplug_context =
NULL;
665 UnloadPulseAudioLibrary();
671 if (LoadPulseAudioLibrary() < 0) {
675 if (ConnectToPulseServer(&hotplug_mainloop, &hotplug_context) < 0) {
676 UnloadPulseAudioLibrary();
687 impl->
WaitDone = PULSEAUDIO_WaitDone;
694 "pulseaudio",
"PulseAudio", PULSEAUDIO_Init, 0
GLsizei GLenum GLboolean sink
SDL_AudioFormat SDL_FirstAudioFormat(SDL_AudioFormat format)
AudioBootStrap PULSEAUDIO_bootstrap
void(* DetectDevices)(void)
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
void(* PlayDevice)(_THIS)
void(* WaitDevice)(_THIS)
void SDL_OpenedAudioDeviceDisconnected(SDL_AudioDevice *device)
GLint GLint GLint GLint GLint x
SDL_AudioFormat SDL_NextAudioFormat(void)
void SDL_RemoveAudioDevice(const int iscapture, void *handle)
uint8_t Uint8
An unsigned 8-bit integer type.
void(* Deinitialize)(void)
GLsizei GLsizei GLchar * source
void SDL_CalculateAudioSpec(SDL_AudioSpec *spec)
#define SDL_AllocAudioMem
GLenum GLenum GLsizei const GLuint GLboolean enabled
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
#define SDL_assert(condition)
int(* OpenDevice)(_THIS, void *handle, const char *devname, int iscapture)
#define SDL_OutOfMemory()
SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char int SDL_PRINTF_FORMAT_STRING const char const char SDL_SCANF_FORMAT_STRING const char return SDL_ThreadFunction const char void return Uint32 return Uint32 void
void(* CloseDevice)(_THIS)
Uint8 *(* GetDeviceBuf)(_THIS)
uint16_t Uint16
An unsigned 16-bit integer type.
void * SDL_LoadFunction(void *handle, const char *name)
#define SDL_SetThreadPriority
GLfloat GLfloat GLfloat GLfloat h
void SDL_AddAudioDevice(const int iscapture, const char *name, void *handle)