From f44ba092651aa75055e109e04b4164ea92ae7fdc Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Mon, 19 Jun 2006 21:53:48 +0000 Subject: big s/polyp/pulse/g git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f --- src/pulsecore/source.c | 313 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 313 insertions(+) create mode 100644 src/pulsecore/source.c (limited to 'src/pulsecore/source.c') diff --git a/src/pulsecore/source.c b/src/pulsecore/source.c new file mode 100644 index 00000000..84151a92 --- /dev/null +++ b/src/pulsecore/source.c @@ -0,0 +1,313 @@ +/* $Id$ */ + +/*** + This file is part of PulseAudio. + + PulseAudio is free software; you can redistribute it and/or modify + it under the terms of the GNU Lesser General Public License as published + by the Free Software Foundation; either version 2 of the License, + or (at your option) any later version. + + PulseAudio is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +#ifdef HAVE_CONFIG_H +#include +#endif + +#include +#include +#include +#include + +#include +#include + +#include +#include +#include +#include +#include + +#include "source.h" + +#define CHECK_VALIDITY_RETURN_NULL(condition) \ +do {\ +if (!(condition)) \ + return NULL; \ +} while (0) + +pa_source* pa_source_new( + pa_core *core, + const char *driver, + const char *name, + int fail, + const pa_sample_spec *spec, + const pa_channel_map *map) { + + pa_source *s; + char st[256]; + int r; + pa_channel_map tmap; + + assert(core); + assert(name); + assert(spec); + + CHECK_VALIDITY_RETURN_NULL(pa_sample_spec_valid(spec)); + + if (!map) + map = pa_channel_map_init_auto(&tmap, spec->channels, PA_CHANNEL_MAP_DEFAULT); + + CHECK_VALIDITY_RETURN_NULL(map && pa_channel_map_valid(map)); + CHECK_VALIDITY_RETURN_NULL(map->channels == spec->channels); + CHECK_VALIDITY_RETURN_NULL(!driver || pa_utf8_valid(driver)); + CHECK_VALIDITY_RETURN_NULL(pa_utf8_valid(name) && *name); + + s = pa_xnew(pa_source, 1); + + if (!(name = pa_namereg_register(core, name, PA_NAMEREG_SOURCE, s, fail))) { + pa_xfree(s); + return NULL; + } + + s->ref = 1; + s->core = core; + s->state = PA_SOURCE_RUNNING; + s->name = pa_xstrdup(name); + s->description = NULL; + s->driver = pa_xstrdup(driver); + s->owner = NULL; + + s->sample_spec = *spec; + s->channel_map = *map; + + s->outputs = pa_idxset_new(NULL, NULL); + s->monitor_of = NULL; + + pa_cvolume_reset(&s->sw_volume, spec->channels); + pa_cvolume_reset(&s->hw_volume, spec->channels); + s->sw_muted = 0; + s->hw_muted = 0; + + s->get_latency = NULL; + s->notify = NULL; + s->set_hw_volume = NULL; + s->get_hw_volume = NULL; + s->set_hw_mute = NULL; + s->get_hw_mute = NULL; + s->userdata = NULL; + + r = pa_idxset_put(core->sources, s, &s->index); + assert(s->index != PA_IDXSET_INVALID && r >= 0); + + pa_sample_spec_snprint(st, sizeof(st), spec); + pa_log_info(__FILE__": created %u \"%s\" with sample spec \"%s\"", s->index, s->name, st); + + pa_subscription_post(core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_NEW, s->index); + + return s; +} + +void pa_source_disconnect(pa_source *s) { + pa_source_output *o, *j = NULL; + + assert(s); + assert(s->state == PA_SOURCE_RUNNING); + + pa_namereg_unregister(s->core, s->name); + + while ((o = pa_idxset_first(s->outputs, NULL))) { + assert(o != j); + pa_source_output_kill(o); + j = o; + } + + pa_idxset_remove_by_data(s->core->sources, s, NULL); + + s->get_latency = NULL; + s->notify = NULL; + s->get_hw_volume = NULL; + s->set_hw_volume = NULL; + s->set_hw_mute = NULL; + s->get_hw_mute = NULL; + + s->state = PA_SOURCE_DISCONNECTED; + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE | PA_SUBSCRIPTION_EVENT_REMOVE, s->index); +} + +static void source_free(pa_source *s) { + assert(s); + assert(!s->ref); + + if (s->state != PA_SOURCE_DISCONNECTED) + pa_source_disconnect(s); + + pa_log_info(__FILE__": freed %u \"%s\"", s->index, s->name); + + pa_idxset_free(s->outputs, NULL, NULL); + + pa_xfree(s->name); + pa_xfree(s->description); + pa_xfree(s->driver); + pa_xfree(s); +} + +void pa_source_unref(pa_source *s) { + assert(s); + assert(s->ref >= 1); + + if (!(--s->ref)) + source_free(s); +} + +pa_source* pa_source_ref(pa_source *s) { + assert(s); + assert(s->ref >= 1); + + s->ref++; + return s; +} + +void pa_source_notify(pa_source*s) { + assert(s); + assert(s->ref >= 1); + + if (s->notify) + s->notify(s); +} + +static int do_post(void *p, PA_GCC_UNUSED uint32_t idx, PA_GCC_UNUSED int *del, void*userdata) { + pa_source_output *o = p; + const pa_memchunk *chunk = userdata; + + assert(o); + assert(chunk); + + pa_source_output_push(o, chunk); + return 0; +} + +void pa_source_post(pa_source*s, const pa_memchunk *chunk) { + assert(s); + assert(s->ref >= 1); + assert(chunk); + + pa_source_ref(s); + + if (s->sw_muted || !pa_cvolume_is_norm(&s->sw_volume)) { + pa_memchunk vchunk = *chunk; + + pa_memblock_ref(vchunk.memblock); + pa_memchunk_make_writable(&vchunk, s->core->memblock_stat, 0); + if (s->sw_muted) + pa_silence_memchunk(&vchunk, &s->sample_spec); + else + pa_volume_memchunk(&vchunk, &s->sample_spec, &s->sw_volume); + pa_idxset_foreach(s->outputs, do_post, &vchunk); + pa_memblock_unref(vchunk.memblock); + } else + pa_idxset_foreach(s->outputs, do_post, (void*) chunk); + + pa_source_unref(s); +} + +void pa_source_set_owner(pa_source *s, pa_module *m) { + assert(s); + assert(s->ref >= 1); + + s->owner = m; +} + +pa_usec_t pa_source_get_latency(pa_source *s) { + assert(s); + assert(s->ref >= 1); + + if (!s->get_latency) + return 0; + + return s->get_latency(s); +} + +void pa_source_set_volume(pa_source *s, pa_mixer_t m, const pa_cvolume *volume) { + pa_cvolume *v; + + assert(s); + assert(s->ref >= 1); + assert(volume); + + if (m == PA_MIXER_HARDWARE && s->set_hw_volume) + v = &s->hw_volume; + else + v = &s->sw_volume; + + if (pa_cvolume_equal(v, volume)) + return; + + *v = *volume; + + if (v == &s->hw_volume) + if (s->set_hw_volume(s) < 0) + s->sw_volume = *volume; + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); +} + +const pa_cvolume *pa_source_get_volume(pa_source *s, pa_mixer_t m) { + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_volume) { + + if (s->get_hw_volume) + s->get_hw_volume(s); + + return &s->hw_volume; + } else + return &s->sw_volume; +} + +void pa_source_set_mute(pa_source *s, pa_mixer_t m, int mute) { + int *t; + + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_mute) + t = &s->hw_muted; + else + t = &s->sw_muted; + + if (!!*t == !!mute) + return; + + *t = !!mute; + + if (t == &s->hw_muted) + if (s->set_hw_mute(s) < 0) + s->sw_muted = !!mute; + + pa_subscription_post(s->core, PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE, s->index); +} + +int pa_source_get_mute(pa_source *s, pa_mixer_t m) { + assert(s); + assert(s->ref >= 1); + + if (m == PA_MIXER_HARDWARE && s->set_hw_mute) { + + if (s->get_hw_mute) + s->get_hw_mute(s); + + return s->hw_muted; + } else + return s->sw_muted; +} -- cgit