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etlegacy-libs/openal/Alc/backends/pulseaudio.c
Remy Marquis 3e97385052 libs: added openAL 1.17.1
2015-12-12 22:07:33 +01:00

1810 lines
59 KiB
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/**
* OpenAL cross platform audio library
* Copyright (C) 2009 by Konstantinos Natsakis <konstantinos.natsakis@gmail.com>
* Copyright (C) 2010 by Chris Robinson <chris.kcat@gmail.com>
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
* Or go to http://www.gnu.org/copyleft/lgpl.html
*/
#include "config.h"
#include <string.h>
#include "alMain.h"
#include "alu.h"
#include "threads.h"
#include "compat.h"
#include "backends/base.h"
#include <pulse/pulseaudio.h>
#if PA_API_VERSION == 12
#ifdef HAVE_DYNLOAD
static void *pa_handle;
#define MAKE_FUNC(x) static __typeof(x) * p##x
MAKE_FUNC(pa_context_unref);
MAKE_FUNC(pa_sample_spec_valid);
MAKE_FUNC(pa_frame_size);
MAKE_FUNC(pa_stream_drop);
MAKE_FUNC(pa_strerror);
MAKE_FUNC(pa_context_get_state);
MAKE_FUNC(pa_stream_get_state);
MAKE_FUNC(pa_threaded_mainloop_signal);
MAKE_FUNC(pa_stream_peek);
MAKE_FUNC(pa_threaded_mainloop_wait);
MAKE_FUNC(pa_threaded_mainloop_unlock);
MAKE_FUNC(pa_threaded_mainloop_in_thread);
MAKE_FUNC(pa_context_new);
MAKE_FUNC(pa_threaded_mainloop_stop);
MAKE_FUNC(pa_context_disconnect);
MAKE_FUNC(pa_threaded_mainloop_start);
MAKE_FUNC(pa_threaded_mainloop_get_api);
MAKE_FUNC(pa_context_set_state_callback);
MAKE_FUNC(pa_stream_write);
MAKE_FUNC(pa_xfree);
MAKE_FUNC(pa_stream_connect_record);
MAKE_FUNC(pa_stream_connect_playback);
MAKE_FUNC(pa_stream_readable_size);
MAKE_FUNC(pa_stream_writable_size);
MAKE_FUNC(pa_stream_is_corked);
MAKE_FUNC(pa_stream_cork);
MAKE_FUNC(pa_stream_is_suspended);
MAKE_FUNC(pa_stream_get_device_name);
MAKE_FUNC(pa_stream_get_latency);
MAKE_FUNC(pa_path_get_filename);
MAKE_FUNC(pa_get_binary_name);
MAKE_FUNC(pa_threaded_mainloop_free);
MAKE_FUNC(pa_context_errno);
MAKE_FUNC(pa_xmalloc);
MAKE_FUNC(pa_stream_unref);
MAKE_FUNC(pa_threaded_mainloop_accept);
MAKE_FUNC(pa_stream_set_write_callback);
MAKE_FUNC(pa_threaded_mainloop_new);
MAKE_FUNC(pa_context_connect);
MAKE_FUNC(pa_stream_set_buffer_attr);
MAKE_FUNC(pa_stream_get_buffer_attr);
MAKE_FUNC(pa_stream_get_sample_spec);
MAKE_FUNC(pa_stream_get_time);
MAKE_FUNC(pa_stream_set_read_callback);
MAKE_FUNC(pa_stream_set_state_callback);
MAKE_FUNC(pa_stream_set_moved_callback);
MAKE_FUNC(pa_stream_set_underflow_callback);
MAKE_FUNC(pa_stream_new_with_proplist);
MAKE_FUNC(pa_stream_disconnect);
MAKE_FUNC(pa_threaded_mainloop_lock);
MAKE_FUNC(pa_channel_map_init_auto);
MAKE_FUNC(pa_channel_map_parse);
MAKE_FUNC(pa_channel_map_snprint);
MAKE_FUNC(pa_channel_map_equal);
MAKE_FUNC(pa_context_get_server_info);
MAKE_FUNC(pa_context_get_sink_info_by_name);
MAKE_FUNC(pa_context_get_sink_info_list);
MAKE_FUNC(pa_context_get_source_info_by_name);
MAKE_FUNC(pa_context_get_source_info_list);
MAKE_FUNC(pa_operation_get_state);
MAKE_FUNC(pa_operation_unref);
MAKE_FUNC(pa_proplist_new);
MAKE_FUNC(pa_proplist_free);
MAKE_FUNC(pa_proplist_set);
MAKE_FUNC(pa_channel_map_superset);
MAKE_FUNC(pa_stream_set_buffer_attr_callback);
MAKE_FUNC(pa_stream_begin_write);
#undef MAKE_FUNC
#define pa_context_unref ppa_context_unref
#define pa_sample_spec_valid ppa_sample_spec_valid
#define pa_frame_size ppa_frame_size
#define pa_stream_drop ppa_stream_drop
#define pa_strerror ppa_strerror
#define pa_context_get_state ppa_context_get_state
#define pa_stream_get_state ppa_stream_get_state
#define pa_threaded_mainloop_signal ppa_threaded_mainloop_signal
#define pa_stream_peek ppa_stream_peek
#define pa_threaded_mainloop_wait ppa_threaded_mainloop_wait
#define pa_threaded_mainloop_unlock ppa_threaded_mainloop_unlock
#define pa_threaded_mainloop_in_thread ppa_threaded_mainloop_in_thread
#define pa_context_new ppa_context_new
#define pa_threaded_mainloop_stop ppa_threaded_mainloop_stop
#define pa_context_disconnect ppa_context_disconnect
#define pa_threaded_mainloop_start ppa_threaded_mainloop_start
#define pa_threaded_mainloop_get_api ppa_threaded_mainloop_get_api
#define pa_context_set_state_callback ppa_context_set_state_callback
#define pa_stream_write ppa_stream_write
#define pa_xfree ppa_xfree
#define pa_stream_connect_record ppa_stream_connect_record
#define pa_stream_connect_playback ppa_stream_connect_playback
#define pa_stream_readable_size ppa_stream_readable_size
#define pa_stream_writable_size ppa_stream_writable_size
#define pa_stream_is_corked ppa_stream_is_corked
#define pa_stream_cork ppa_stream_cork
#define pa_stream_is_suspended ppa_stream_is_suspended
#define pa_stream_get_device_name ppa_stream_get_device_name
#define pa_stream_get_latency ppa_stream_get_latency
#define pa_path_get_filename ppa_path_get_filename
#define pa_get_binary_name ppa_get_binary_name
#define pa_threaded_mainloop_free ppa_threaded_mainloop_free
#define pa_context_errno ppa_context_errno
#define pa_xmalloc ppa_xmalloc
#define pa_stream_unref ppa_stream_unref
#define pa_threaded_mainloop_accept ppa_threaded_mainloop_accept
#define pa_stream_set_write_callback ppa_stream_set_write_callback
#define pa_threaded_mainloop_new ppa_threaded_mainloop_new
#define pa_context_connect ppa_context_connect
#define pa_stream_set_buffer_attr ppa_stream_set_buffer_attr
#define pa_stream_get_buffer_attr ppa_stream_get_buffer_attr
#define pa_stream_get_sample_spec ppa_stream_get_sample_spec
#define pa_stream_get_time ppa_stream_get_time
#define pa_stream_set_read_callback ppa_stream_set_read_callback
#define pa_stream_set_state_callback ppa_stream_set_state_callback
#define pa_stream_set_moved_callback ppa_stream_set_moved_callback
#define pa_stream_set_underflow_callback ppa_stream_set_underflow_callback
#define pa_stream_new_with_proplist ppa_stream_new_with_proplist
#define pa_stream_disconnect ppa_stream_disconnect
#define pa_threaded_mainloop_lock ppa_threaded_mainloop_lock
#define pa_channel_map_init_auto ppa_channel_map_init_auto
#define pa_channel_map_parse ppa_channel_map_parse
#define pa_channel_map_snprint ppa_channel_map_snprint
#define pa_channel_map_equal ppa_channel_map_equal
#define pa_context_get_server_info ppa_context_get_server_info
#define pa_context_get_sink_info_by_name ppa_context_get_sink_info_by_name
#define pa_context_get_sink_info_list ppa_context_get_sink_info_list
#define pa_context_get_source_info_by_name ppa_context_get_source_info_by_name
#define pa_context_get_source_info_list ppa_context_get_source_info_list
#define pa_operation_get_state ppa_operation_get_state
#define pa_operation_unref ppa_operation_unref
#define pa_proplist_new ppa_proplist_new
#define pa_proplist_free ppa_proplist_free
#define pa_proplist_set ppa_proplist_set
#define pa_channel_map_superset ppa_channel_map_superset
#define pa_stream_set_buffer_attr_callback ppa_stream_set_buffer_attr_callback
#define pa_stream_begin_write ppa_stream_begin_write
#endif
static ALCboolean pulse_load(void)
{
ALCboolean ret = ALC_TRUE;
#ifdef HAVE_DYNLOAD
if(!pa_handle)
{
#ifdef _WIN32
#define PALIB "libpulse-0.dll"
#elif defined(__APPLE__) && defined(__MACH__)
#define PALIB "libpulse.0.dylib"
#else
#define PALIB "libpulse.so.0"
#endif
pa_handle = LoadLib(PALIB);
if(!pa_handle)
return ALC_FALSE;
#define LOAD_FUNC(x) do { \
p##x = GetSymbol(pa_handle, #x); \
if(!(p##x)) { \
ret = ALC_FALSE; \
} \
} while(0)
LOAD_FUNC(pa_context_unref);
LOAD_FUNC(pa_sample_spec_valid);
LOAD_FUNC(pa_stream_drop);
LOAD_FUNC(pa_frame_size);
LOAD_FUNC(pa_strerror);
LOAD_FUNC(pa_context_get_state);
LOAD_FUNC(pa_stream_get_state);
LOAD_FUNC(pa_threaded_mainloop_signal);
LOAD_FUNC(pa_stream_peek);
LOAD_FUNC(pa_threaded_mainloop_wait);
LOAD_FUNC(pa_threaded_mainloop_unlock);
LOAD_FUNC(pa_threaded_mainloop_in_thread);
LOAD_FUNC(pa_context_new);
LOAD_FUNC(pa_threaded_mainloop_stop);
LOAD_FUNC(pa_context_disconnect);
LOAD_FUNC(pa_threaded_mainloop_start);
LOAD_FUNC(pa_threaded_mainloop_get_api);
LOAD_FUNC(pa_context_set_state_callback);
LOAD_FUNC(pa_stream_write);
LOAD_FUNC(pa_xfree);
LOAD_FUNC(pa_stream_connect_record);
LOAD_FUNC(pa_stream_connect_playback);
LOAD_FUNC(pa_stream_readable_size);
LOAD_FUNC(pa_stream_writable_size);
LOAD_FUNC(pa_stream_is_corked);
LOAD_FUNC(pa_stream_cork);
LOAD_FUNC(pa_stream_is_suspended);
LOAD_FUNC(pa_stream_get_device_name);
LOAD_FUNC(pa_stream_get_latency);
LOAD_FUNC(pa_path_get_filename);
LOAD_FUNC(pa_get_binary_name);
LOAD_FUNC(pa_threaded_mainloop_free);
LOAD_FUNC(pa_context_errno);
LOAD_FUNC(pa_xmalloc);
LOAD_FUNC(pa_stream_unref);
LOAD_FUNC(pa_threaded_mainloop_accept);
LOAD_FUNC(pa_stream_set_write_callback);
LOAD_FUNC(pa_threaded_mainloop_new);
LOAD_FUNC(pa_context_connect);
LOAD_FUNC(pa_stream_set_buffer_attr);
LOAD_FUNC(pa_stream_get_buffer_attr);
LOAD_FUNC(pa_stream_get_sample_spec);
LOAD_FUNC(pa_stream_get_time);
LOAD_FUNC(pa_stream_set_read_callback);
LOAD_FUNC(pa_stream_set_state_callback);
LOAD_FUNC(pa_stream_set_moved_callback);
LOAD_FUNC(pa_stream_set_underflow_callback);
LOAD_FUNC(pa_stream_new_with_proplist);
LOAD_FUNC(pa_stream_disconnect);
LOAD_FUNC(pa_threaded_mainloop_lock);
LOAD_FUNC(pa_channel_map_init_auto);
LOAD_FUNC(pa_channel_map_parse);
LOAD_FUNC(pa_channel_map_snprint);
LOAD_FUNC(pa_channel_map_equal);
LOAD_FUNC(pa_context_get_server_info);
LOAD_FUNC(pa_context_get_sink_info_by_name);
LOAD_FUNC(pa_context_get_sink_info_list);
LOAD_FUNC(pa_context_get_source_info_by_name);
LOAD_FUNC(pa_context_get_source_info_list);
LOAD_FUNC(pa_operation_get_state);
LOAD_FUNC(pa_operation_unref);
LOAD_FUNC(pa_proplist_new);
LOAD_FUNC(pa_proplist_free);
LOAD_FUNC(pa_proplist_set);
LOAD_FUNC(pa_channel_map_superset);
LOAD_FUNC(pa_stream_set_buffer_attr_callback);
LOAD_FUNC(pa_stream_begin_write);
#undef LOAD_FUNC
if(ret == ALC_FALSE)
{
CloseLib(pa_handle);
pa_handle = NULL;
}
}
#endif /* HAVE_DYNLOAD */
return ret;
}
/* Global flags and properties */
static pa_context_flags_t pulse_ctx_flags;
static pa_proplist *prop_filter;
/* PulseAudio Event Callbacks */
static void context_state_callback(pa_context *context, void *pdata)
{
pa_threaded_mainloop *loop = pdata;
pa_context_state_t state;
state = pa_context_get_state(context);
if(state == PA_CONTEXT_READY || !PA_CONTEXT_IS_GOOD(state))
pa_threaded_mainloop_signal(loop, 0);
}
static void stream_state_callback(pa_stream *stream, void *pdata)
{
pa_threaded_mainloop *loop = pdata;
pa_stream_state_t state;
state = pa_stream_get_state(stream);
if(state == PA_STREAM_READY || !PA_STREAM_IS_GOOD(state))
pa_threaded_mainloop_signal(loop, 0);
}
static void stream_success_callback(pa_stream *UNUSED(stream), int UNUSED(success), void *pdata)
{
pa_threaded_mainloop *loop = pdata;
pa_threaded_mainloop_signal(loop, 0);
}
static void wait_for_operation(pa_operation *op, pa_threaded_mainloop *loop)
{
if(op)
{
while(pa_operation_get_state(op) == PA_OPERATION_RUNNING)
pa_threaded_mainloop_wait(loop);
pa_operation_unref(op);
}
}
static pa_context *connect_context(pa_threaded_mainloop *loop, ALboolean silent)
{
const char *name = "OpenAL Soft";
char path_name[PATH_MAX];
pa_context_state_t state;
pa_context *context;
int err;
if(pa_get_binary_name(path_name, sizeof(path_name)))
name = pa_path_get_filename(path_name);
context = pa_context_new(pa_threaded_mainloop_get_api(loop), name);
if(!context)
{
ERR("pa_context_new() failed\n");
return NULL;
}
pa_context_set_state_callback(context, context_state_callback, loop);
if((err=pa_context_connect(context, NULL, pulse_ctx_flags, NULL)) >= 0)
{
while((state=pa_context_get_state(context)) != PA_CONTEXT_READY)
{
if(!PA_CONTEXT_IS_GOOD(state))
{
err = pa_context_errno(context);
if(err > 0) err = -err;
break;
}
pa_threaded_mainloop_wait(loop);
}
}
pa_context_set_state_callback(context, NULL, NULL);
if(err < 0)
{
if(!silent)
ERR("Context did not connect: %s\n", pa_strerror(err));
pa_context_unref(context);
return NULL;
}
return context;
}
static ALCboolean pulse_open(pa_threaded_mainloop **loop, pa_context **context,
void(*state_cb)(pa_context*,void*), void *ptr)
{
if(!(*loop = pa_threaded_mainloop_new()))
{
ERR("pa_threaded_mainloop_new() failed!\n");
return ALC_FALSE;
}
if(pa_threaded_mainloop_start(*loop) < 0)
{
ERR("pa_threaded_mainloop_start() failed\n");
goto error;
}
pa_threaded_mainloop_lock(*loop);
*context = connect_context(*loop, AL_FALSE);
if(!*context)
{
pa_threaded_mainloop_unlock(*loop);
pa_threaded_mainloop_stop(*loop);
goto error;
}
pa_context_set_state_callback(*context, state_cb, ptr);
pa_threaded_mainloop_unlock(*loop);
return ALC_TRUE;
error:
pa_threaded_mainloop_free(*loop);
*loop = NULL;
return ALC_FALSE;
}
static void pulse_close(pa_threaded_mainloop *loop, pa_context *context, pa_stream *stream)
{
pa_threaded_mainloop_lock(loop);
if(stream)
{
pa_stream_set_state_callback(stream, NULL, NULL);
pa_stream_set_moved_callback(stream, NULL, NULL);
pa_stream_set_write_callback(stream, NULL, NULL);
pa_stream_set_buffer_attr_callback(stream, NULL, NULL);
pa_stream_disconnect(stream);
pa_stream_unref(stream);
}
pa_context_disconnect(context);
pa_context_unref(context);
pa_threaded_mainloop_unlock(loop);
pa_threaded_mainloop_stop(loop);
pa_threaded_mainloop_free(loop);
}
typedef struct {
al_string name;
al_string device_name;
} DevMap;
TYPEDEF_VECTOR(DevMap, vector_DevMap)
static vector_DevMap PlaybackDevices;
static vector_DevMap CaptureDevices;
static void clear_devlist(vector_DevMap *list)
{
#define DEINIT_STRS(i) (AL_STRING_DEINIT((i)->name),AL_STRING_DEINIT((i)->device_name))
VECTOR_FOR_EACH(DevMap, *list, DEINIT_STRS);
#undef DEINIT_STRS
VECTOR_RESIZE(*list, 0);
}
typedef struct ALCpulsePlayback {
DERIVE_FROM_TYPE(ALCbackend);
al_string device_name;
pa_buffer_attr attr;
pa_sample_spec spec;
pa_threaded_mainloop *loop;
pa_stream *stream;
pa_context *context;
volatile ALboolean killNow;
althrd_t thread;
} ALCpulsePlayback;
static void ALCpulsePlayback_deviceCallback(pa_context *context, const pa_sink_info *info, int eol, void *pdata);
static void ALCpulsePlayback_probeDevices(void);
static void ALCpulsePlayback_bufferAttrCallback(pa_stream *stream, void *pdata);
static void ALCpulsePlayback_contextStateCallback(pa_context *context, void *pdata);
static void ALCpulsePlayback_streamStateCallback(pa_stream *stream, void *pdata);
static void ALCpulsePlayback_streamWriteCallback(pa_stream *p, size_t nbytes, void *userdata);
static void ALCpulsePlayback_sinkInfoCallback(pa_context *context, const pa_sink_info *info, int eol, void *pdata);
static void ALCpulsePlayback_sinkNameCallback(pa_context *context, const pa_sink_info *info, int eol, void *pdata);
static void ALCpulsePlayback_streamMovedCallback(pa_stream *stream, void *pdata);
static pa_stream *ALCpulsePlayback_connectStream(const char *device_name, pa_threaded_mainloop *loop,
pa_context *context, pa_stream_flags_t flags,
pa_buffer_attr *attr, pa_sample_spec *spec,
pa_channel_map *chanmap);
static int ALCpulsePlayback_mixerProc(void *ptr);
static void ALCpulsePlayback_Construct(ALCpulsePlayback *self, ALCdevice *device);
static void ALCpulsePlayback_Destruct(ALCpulsePlayback *self);
static ALCenum ALCpulsePlayback_open(ALCpulsePlayback *self, const ALCchar *name);
static void ALCpulsePlayback_close(ALCpulsePlayback *self);
static ALCboolean ALCpulsePlayback_reset(ALCpulsePlayback *self);
static ALCboolean ALCpulsePlayback_start(ALCpulsePlayback *self);
static void ALCpulsePlayback_stop(ALCpulsePlayback *self);
static DECLARE_FORWARD2(ALCpulsePlayback, ALCbackend, ALCenum, captureSamples, ALCvoid*, ALCuint)
static DECLARE_FORWARD(ALCpulsePlayback, ALCbackend, ALCuint, availableSamples)
static ALint64 ALCpulsePlayback_getLatency(ALCpulsePlayback *self);
static void ALCpulsePlayback_lock(ALCpulsePlayback *self);
static void ALCpulsePlayback_unlock(ALCpulsePlayback *self);
DECLARE_DEFAULT_ALLOCATORS(ALCpulsePlayback)
DEFINE_ALCBACKEND_VTABLE(ALCpulsePlayback);
static void ALCpulsePlayback_Construct(ALCpulsePlayback *self, ALCdevice *device)
{
ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
SET_VTABLE2(ALCpulsePlayback, ALCbackend, self);
AL_STRING_INIT(self->device_name);
}
static void ALCpulsePlayback_Destruct(ALCpulsePlayback *self)
{
AL_STRING_DEINIT(self->device_name);
ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
}
static void ALCpulsePlayback_deviceCallback(pa_context *UNUSED(context), const pa_sink_info *info, int eol, void *pdata)
{
pa_threaded_mainloop *loop = pdata;
const DevMap *iter;
DevMap entry;
int count;
if(eol)
{
pa_threaded_mainloop_signal(loop, 0);
return;
}
#define MATCH_INFO_NAME(iter) (al_string_cmp_cstr((iter)->device_name, info->name) == 0)
VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_INFO_NAME);
if(iter != VECTOR_ITER_END(PlaybackDevices)) return;
#undef MATCH_INFO_NAME
AL_STRING_INIT(entry.name);
AL_STRING_INIT(entry.device_name);
al_string_copy_cstr(&entry.device_name, info->name);
count = 0;
while(1)
{
al_string_copy_cstr(&entry.name, info->description);
if(count != 0)
{
char str[64];
snprintf(str, sizeof(str), " #%d", count+1);
al_string_append_cstr(&entry.name, str);
}
#define MATCH_ENTRY(i) (al_string_cmp(entry.name, (i)->name) == 0)
VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_ENTRY);
if(iter == VECTOR_ITER_END(PlaybackDevices)) break;
#undef MATCH_ENTRY
count++;
}
TRACE("Got device \"%s\", \"%s\"\n", al_string_get_cstr(entry.name), al_string_get_cstr(entry.device_name));
VECTOR_PUSH_BACK(PlaybackDevices, entry);
}
static void ALCpulsePlayback_probeDevices(void)
{
pa_threaded_mainloop *loop;
clear_devlist(&PlaybackDevices);
if((loop=pa_threaded_mainloop_new()) &&
pa_threaded_mainloop_start(loop) >= 0)
{
pa_context *context;
pa_threaded_mainloop_lock(loop);
context = connect_context(loop, AL_FALSE);
if(context)
{
pa_operation *o;
pa_stream_flags_t flags;
pa_sample_spec spec;
pa_stream *stream;
flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 2;
stream = ALCpulsePlayback_connectStream(NULL, loop, context, flags,
NULL, &spec, NULL);
if(stream)
{
o = pa_context_get_sink_info_by_name(context, pa_stream_get_device_name(stream),
ALCpulsePlayback_deviceCallback, loop);
wait_for_operation(o, loop);
pa_stream_disconnect(stream);
pa_stream_unref(stream);
stream = NULL;
}
o = pa_context_get_sink_info_list(context, ALCpulsePlayback_deviceCallback, loop);
wait_for_operation(o, loop);
pa_context_disconnect(context);
pa_context_unref(context);
}
pa_threaded_mainloop_unlock(loop);
pa_threaded_mainloop_stop(loop);
}
if(loop)
pa_threaded_mainloop_free(loop);
}
static void ALCpulsePlayback_bufferAttrCallback(pa_stream *stream, void *pdata)
{
ALCpulsePlayback *self = pdata;
self->attr = *pa_stream_get_buffer_attr(stream);
TRACE("minreq=%d, tlength=%d, prebuf=%d\n", self->attr.minreq, self->attr.tlength, self->attr.prebuf);
}
static void ALCpulsePlayback_contextStateCallback(pa_context *context, void *pdata)
{
ALCpulsePlayback *self = pdata;
if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
{
ERR("Received context failure!\n");
aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice);
}
pa_threaded_mainloop_signal(self->loop, 0);
}
static void ALCpulsePlayback_streamStateCallback(pa_stream *stream, void *pdata)
{
ALCpulsePlayback *self = pdata;
if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
{
ERR("Received stream failure!\n");
aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice);
}
pa_threaded_mainloop_signal(self->loop, 0);
}
static void ALCpulsePlayback_streamWriteCallback(pa_stream* UNUSED(p), size_t UNUSED(nbytes), void *pdata)
{
ALCpulsePlayback *self = pdata;
pa_threaded_mainloop_signal(self->loop, 0);
}
static void ALCpulsePlayback_sinkInfoCallback(pa_context *UNUSED(context), const pa_sink_info *info, int eol, void *pdata)
{
static const struct {
enum DevFmtChannels chans;
pa_channel_map map;
} chanmaps[] = {
{ DevFmtX71, { 8, {
PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT,
PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT
} } },
{ DevFmtX61, { 7, {
PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
PA_CHANNEL_POSITION_REAR_CENTER,
PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT
} } },
{ DevFmtX51, { 6, {
PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
PA_CHANNEL_POSITION_SIDE_LEFT, PA_CHANNEL_POSITION_SIDE_RIGHT
} } },
{ DevFmtX51Rear, { 6, {
PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
PA_CHANNEL_POSITION_FRONT_CENTER, PA_CHANNEL_POSITION_LFE,
PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT
} } },
{ DevFmtQuad, { 4, {
PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT,
PA_CHANNEL_POSITION_REAR_LEFT, PA_CHANNEL_POSITION_REAR_RIGHT
} } },
{ DevFmtStereo, { 2, {
PA_CHANNEL_POSITION_FRONT_LEFT, PA_CHANNEL_POSITION_FRONT_RIGHT
} } },
{ DevFmtMono, { 1, {PA_CHANNEL_POSITION_MONO} } }
};
ALCpulsePlayback *self = pdata;
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
size_t i;
if(eol)
{
pa_threaded_mainloop_signal(self->loop, 0);
return;
}
for(i = 0;i < COUNTOF(chanmaps);i++)
{
if(pa_channel_map_superset(&info->channel_map, &chanmaps[i].map))
{
if(!(device->Flags&DEVICE_CHANNELS_REQUEST))
device->FmtChans = chanmaps[i].chans;
break;
}
}
if(i == COUNTOF(chanmaps))
{
char chanmap_str[PA_CHANNEL_MAP_SNPRINT_MAX] = "";
pa_channel_map_snprint(chanmap_str, sizeof(chanmap_str), &info->channel_map);
WARN("Failed to find format for channel map:\n %s\n", chanmap_str);
}
if(info->active_port)
TRACE("Active port: %s (%s)\n", info->active_port->name, info->active_port->description);
device->IsHeadphones = (info->active_port &&
strcmp(info->active_port->name, "analog-output-headphones") == 0 &&
device->FmtChans == DevFmtStereo);
}
static void ALCpulsePlayback_sinkNameCallback(pa_context *UNUSED(context), const pa_sink_info *info, int eol, void *pdata)
{
ALCpulsePlayback *self = pdata;
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
if(eol)
{
pa_threaded_mainloop_signal(self->loop, 0);
return;
}
al_string_copy_cstr(&device->DeviceName, info->description);
}
static void ALCpulsePlayback_streamMovedCallback(pa_stream *stream, void *pdata)
{
ALCpulsePlayback *self = pdata;
al_string_copy_cstr(&self->device_name, pa_stream_get_device_name(stream));
TRACE("Stream moved to %s\n", al_string_get_cstr(self->device_name));
}
static pa_stream *ALCpulsePlayback_connectStream(const char *device_name,
pa_threaded_mainloop *loop, pa_context *context,
pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
pa_channel_map *chanmap)
{
pa_stream_state_t state;
pa_stream *stream;
stream = pa_stream_new_with_proplist(context, "Playback Stream", spec, chanmap, prop_filter);
if(!stream)
{
ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
return NULL;
}
pa_stream_set_state_callback(stream, stream_state_callback, loop);
if(pa_stream_connect_playback(stream, device_name, attr, flags, NULL, NULL) < 0)
{
ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
pa_stream_unref(stream);
return NULL;
}
while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
{
if(!PA_STREAM_IS_GOOD(state))
{
ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
pa_stream_unref(stream);
return NULL;
}
pa_threaded_mainloop_wait(loop);
}
pa_stream_set_state_callback(stream, NULL, NULL);
return stream;
}
static int ALCpulsePlayback_mixerProc(void *ptr)
{
ALCpulsePlayback *self = ptr;
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
ALuint buffer_size;
ALint update_size;
size_t frame_size;
ssize_t len;
SetRTPriority();
althrd_setname(althrd_current(), MIXER_THREAD_NAME);
pa_threaded_mainloop_lock(self->loop);
frame_size = pa_frame_size(&self->spec);
update_size = device->UpdateSize * frame_size;
/* Sanitize buffer metrics, in case we actually have less than what we
* asked for. */
buffer_size = minu(update_size*device->NumUpdates, self->attr.tlength);
update_size = minu(update_size, buffer_size/2);
do {
len = pa_stream_writable_size(self->stream) - self->attr.tlength +
buffer_size;
if(len < update_size)
{
if(pa_stream_is_corked(self->stream) == 1)
{
pa_operation *o;
o = pa_stream_cork(self->stream, 0, NULL, NULL);
if(o) pa_operation_unref(o);
}
pa_threaded_mainloop_wait(self->loop);
continue;
}
len -= len%update_size;
while(len > 0)
{
size_t newlen = len;
void *buf;
pa_free_cb_t free_func = NULL;
if(pa_stream_begin_write(self->stream, &buf, &newlen) < 0)
{
buf = pa_xmalloc(newlen);
free_func = pa_xfree;
}
aluMixData(device, buf, newlen/frame_size);
pa_stream_write(self->stream, buf, newlen, free_func, 0, PA_SEEK_RELATIVE);
len -= newlen;
}
} while(!self->killNow && device->Connected);
pa_threaded_mainloop_unlock(self->loop);
return 0;
}
static ALCenum ALCpulsePlayback_open(ALCpulsePlayback *self, const ALCchar *name)
{
const_al_string dev_name = AL_STRING_INIT_STATIC();
const char *pulse_name = NULL;
pa_stream_flags_t flags;
pa_sample_spec spec;
if(name)
{
const DevMap *iter;
if(VECTOR_SIZE(PlaybackDevices) == 0)
ALCpulsePlayback_probeDevices();
#define MATCH_NAME(iter) (al_string_cmp_cstr((iter)->name, name) == 0)
VECTOR_FIND_IF(iter, const DevMap, PlaybackDevices, MATCH_NAME);
#undef MATCH_NAME
if(iter == VECTOR_ITER_END(PlaybackDevices))
return ALC_INVALID_VALUE;
pulse_name = al_string_get_cstr(iter->device_name);
dev_name = iter->name;
}
if(!pulse_open(&self->loop, &self->context, ALCpulsePlayback_contextStateCallback, self))
return ALC_INVALID_VALUE;
pa_threaded_mainloop_lock(self->loop);
flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
PA_STREAM_FIX_CHANNELS;
if(!GetConfigValueBool(NULL, "pulse", "allow-moves", 0))
flags |= PA_STREAM_DONT_MOVE;
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 2;
TRACE("Connecting to \"%s\"\n", pulse_name ? pulse_name : "(default)");
self->stream = ALCpulsePlayback_connectStream(pulse_name, self->loop, self->context,
flags, NULL, &spec, NULL);
if(!self->stream)
{
pa_threaded_mainloop_unlock(self->loop);
pulse_close(self->loop, self->context, self->stream);
self->loop = NULL;
self->context = NULL;
return ALC_INVALID_VALUE;
}
pa_stream_set_moved_callback(self->stream, ALCpulsePlayback_streamMovedCallback, self);
al_string_copy_cstr(&self->device_name, pa_stream_get_device_name(self->stream));
if(al_string_empty(dev_name))
{
pa_operation *o = pa_context_get_sink_info_by_name(
self->context, al_string_get_cstr(self->device_name),
ALCpulsePlayback_sinkNameCallback, self
);
wait_for_operation(o, self->loop);
}
else
{
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
al_string_copy(&device->DeviceName, dev_name);
}
pa_threaded_mainloop_unlock(self->loop);
return ALC_NO_ERROR;
}
static void ALCpulsePlayback_close(ALCpulsePlayback *self)
{
pulse_close(self->loop, self->context, self->stream);
self->loop = NULL;
self->context = NULL;
self->stream = NULL;
al_string_clear(&self->device_name);
}
static ALCboolean ALCpulsePlayback_reset(ALCpulsePlayback *self)
{
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
pa_stream_flags_t flags = 0;
const char *mapname = NULL;
pa_channel_map chanmap;
pa_operation *o;
ALuint len;
pa_threaded_mainloop_lock(self->loop);
if(self->stream)
{
pa_stream_set_state_callback(self->stream, NULL, NULL);
pa_stream_set_moved_callback(self->stream, NULL, NULL);
pa_stream_set_write_callback(self->stream, NULL, NULL);
pa_stream_set_buffer_attr_callback(self->stream, NULL, NULL);
pa_stream_disconnect(self->stream);
pa_stream_unref(self->stream);
self->stream = NULL;
}
o = pa_context_get_sink_info_by_name(self->context, al_string_get_cstr(self->device_name),
ALCpulsePlayback_sinkInfoCallback, self);
wait_for_operation(o, self->loop);
if(GetConfigValueBool(al_string_get_cstr(device->DeviceName), "pulse", "fix-rate", 0) ||
!(device->Flags&DEVICE_FREQUENCY_REQUEST))
flags |= PA_STREAM_FIX_RATE;
flags |= PA_STREAM_INTERPOLATE_TIMING | PA_STREAM_AUTO_TIMING_UPDATE;
flags |= PA_STREAM_ADJUST_LATENCY;
flags |= PA_STREAM_START_CORKED;
if(!GetConfigValueBool(NULL, "pulse", "allow-moves", 0))
flags |= PA_STREAM_DONT_MOVE;
switch(device->FmtType)
{
case DevFmtByte:
device->FmtType = DevFmtUByte;
/* fall-through */
case DevFmtUByte:
self->spec.format = PA_SAMPLE_U8;
break;
case DevFmtUShort:
device->FmtType = DevFmtShort;
/* fall-through */
case DevFmtShort:
self->spec.format = PA_SAMPLE_S16NE;
break;
case DevFmtUInt:
device->FmtType = DevFmtInt;
/* fall-through */
case DevFmtInt:
self->spec.format = PA_SAMPLE_S32NE;
break;
case DevFmtFloat:
self->spec.format = PA_SAMPLE_FLOAT32NE;
break;
}
self->spec.rate = device->Frequency;
self->spec.channels = ChannelsFromDevFmt(device->FmtChans);
if(pa_sample_spec_valid(&self->spec) == 0)
{
ERR("Invalid sample format\n");
pa_threaded_mainloop_unlock(self->loop);
return ALC_FALSE;
}
switch(device->FmtChans)
{
case DevFmtMono:
mapname = "mono";
break;
case DevFmtBFormat3D:
device->FmtChans = DevFmtStereo;
/*fall-through*/
case DevFmtStereo:
mapname = "front-left,front-right";
break;
case DevFmtQuad:
mapname = "front-left,front-right,rear-left,rear-right";
break;
case DevFmtX51:
mapname = "front-left,front-right,front-center,lfe,side-left,side-right";
break;
case DevFmtX51Rear:
mapname = "front-left,front-right,front-center,lfe,rear-left,rear-right";
break;
case DevFmtX61:
mapname = "front-left,front-right,front-center,lfe,rear-center,side-left,side-right";
break;
case DevFmtX71:
mapname = "front-left,front-right,front-center,lfe,rear-left,rear-right,side-left,side-right";
break;
}
if(!pa_channel_map_parse(&chanmap, mapname))
{
ERR("Failed to build channel map for %s\n", DevFmtChannelsString(device->FmtChans));
pa_threaded_mainloop_unlock(self->loop);
return ALC_FALSE;
}
SetDefaultWFXChannelOrder(device);
self->attr.fragsize = -1;
self->attr.prebuf = 0;
self->attr.minreq = device->UpdateSize * pa_frame_size(&self->spec);
self->attr.tlength = self->attr.minreq * maxu(device->NumUpdates, 2);
self->attr.maxlength = -1;
self->stream = ALCpulsePlayback_connectStream(al_string_get_cstr(self->device_name),
self->loop, self->context, flags,
&self->attr, &self->spec, &chanmap);
if(!self->stream)
{
pa_threaded_mainloop_unlock(self->loop);
return ALC_FALSE;
}
pa_stream_set_state_callback(self->stream, ALCpulsePlayback_streamStateCallback, self);
pa_stream_set_moved_callback(self->stream, ALCpulsePlayback_streamMovedCallback, self);
pa_stream_set_write_callback(self->stream, ALCpulsePlayback_streamWriteCallback, self);
self->spec = *(pa_stream_get_sample_spec(self->stream));
if(device->Frequency != self->spec.rate)
{
/* Server updated our playback rate, so modify the buffer attribs
* accordingly. */
device->NumUpdates = (ALuint)((ALdouble)device->NumUpdates / device->Frequency *
self->spec.rate + 0.5);
self->attr.minreq = device->UpdateSize * pa_frame_size(&self->spec);
self->attr.tlength = self->attr.minreq * clampu(device->NumUpdates, 2, 16);
self->attr.maxlength = -1;
self->attr.prebuf = 0;
o = pa_stream_set_buffer_attr(self->stream, &self->attr,
stream_success_callback, self->loop);
wait_for_operation(o, self->loop);
device->Frequency = self->spec.rate;
}
pa_stream_set_buffer_attr_callback(self->stream, ALCpulsePlayback_bufferAttrCallback, self);
ALCpulsePlayback_bufferAttrCallback(self->stream, self);
len = self->attr.minreq / pa_frame_size(&self->spec);
device->NumUpdates = (ALuint)((ALdouble)device->NumUpdates/len*device->UpdateSize + 0.5);
device->NumUpdates = clampu(device->NumUpdates, 2, 16);
device->UpdateSize = len;
pa_threaded_mainloop_unlock(self->loop);
return ALC_TRUE;
}
static ALCboolean ALCpulsePlayback_start(ALCpulsePlayback *self)
{
self->killNow = AL_FALSE;
if(althrd_create(&self->thread, ALCpulsePlayback_mixerProc, self) != althrd_success)
return ALC_FALSE;
return ALC_TRUE;
}
static void ALCpulsePlayback_stop(ALCpulsePlayback *self)
{
pa_operation *o;
int res;
if(!self->stream || self->killNow)
return;
self->killNow = AL_TRUE;
/* Signal the main loop in case PulseAudio isn't sending us audio requests
* (e.g. if the device is suspended). We need to lock the mainloop in case
* the mixer is between checking the killNow flag but before waiting for
* the signal.
*/
pa_threaded_mainloop_lock(self->loop);
pa_threaded_mainloop_unlock(self->loop);
pa_threaded_mainloop_signal(self->loop, 0);
althrd_join(self->thread, &res);
pa_threaded_mainloop_lock(self->loop);
o = pa_stream_cork(self->stream, 1, stream_success_callback, self->loop);
wait_for_operation(o, self->loop);
pa_threaded_mainloop_unlock(self->loop);
}
static ALint64 ALCpulsePlayback_getLatency(ALCpulsePlayback *self)
{
pa_usec_t latency = 0;
int neg, err;
if((err=pa_stream_get_latency(self->stream, &latency, &neg)) != 0)
{
/* FIXME: if err = -PA_ERR_NODATA, it means we were called too soon
* after starting the stream and no timing info has been received from
* the server yet. Should we wait, possibly stalling the app, or give a
* dummy value? Either way, it shouldn't be 0. */
if(err != -PA_ERR_NODATA)
ERR("Failed to get stream latency: 0x%x\n", err);
return 0;
}
if(neg) latency = 0;
return (ALint64)minu64(latency, U64(0x7fffffffffffffff)/1000) * 1000;
}
static void ALCpulsePlayback_lock(ALCpulsePlayback *self)
{
pa_threaded_mainloop_lock(self->loop);
}
static void ALCpulsePlayback_unlock(ALCpulsePlayback *self)
{
pa_threaded_mainloop_unlock(self->loop);
}
typedef struct ALCpulseCapture {
DERIVE_FROM_TYPE(ALCbackend);
al_string device_name;
const void *cap_store;
size_t cap_len;
size_t cap_remain;
ALCuint last_readable;
pa_buffer_attr attr;
pa_sample_spec spec;
pa_threaded_mainloop *loop;
pa_stream *stream;
pa_context *context;
} ALCpulseCapture;
static void ALCpulseCapture_deviceCallback(pa_context *context, const pa_source_info *info, int eol, void *pdata);
static void ALCpulseCapture_probeDevices(void);
static void ALCpulseCapture_contextStateCallback(pa_context *context, void *pdata);
static void ALCpulseCapture_streamStateCallback(pa_stream *stream, void *pdata);
static void ALCpulseCapture_sourceNameCallback(pa_context *context, const pa_source_info *info, int eol, void *pdata);
static void ALCpulseCapture_streamMovedCallback(pa_stream *stream, void *pdata);
static pa_stream *ALCpulseCapture_connectStream(const char *device_name,
pa_threaded_mainloop *loop, pa_context *context,
pa_stream_flags_t flags, pa_buffer_attr *attr,
pa_sample_spec *spec, pa_channel_map *chanmap);
static void ALCpulseCapture_Construct(ALCpulseCapture *self, ALCdevice *device);
static void ALCpulseCapture_Destruct(ALCpulseCapture *self);
static ALCenum ALCpulseCapture_open(ALCpulseCapture *self, const ALCchar *name);
static void ALCpulseCapture_close(ALCpulseCapture *self);
static DECLARE_FORWARD(ALCpulseCapture, ALCbackend, ALCboolean, reset)
static ALCboolean ALCpulseCapture_start(ALCpulseCapture *self);
static void ALCpulseCapture_stop(ALCpulseCapture *self);
static ALCenum ALCpulseCapture_captureSamples(ALCpulseCapture *self, ALCvoid *buffer, ALCuint samples);
static ALCuint ALCpulseCapture_availableSamples(ALCpulseCapture *self);
static ALint64 ALCpulseCapture_getLatency(ALCpulseCapture *self);
static void ALCpulseCapture_lock(ALCpulseCapture *self);
static void ALCpulseCapture_unlock(ALCpulseCapture *self);
DECLARE_DEFAULT_ALLOCATORS(ALCpulseCapture)
DEFINE_ALCBACKEND_VTABLE(ALCpulseCapture);
static void ALCpulseCapture_Construct(ALCpulseCapture *self, ALCdevice *device)
{
ALCbackend_Construct(STATIC_CAST(ALCbackend, self), device);
SET_VTABLE2(ALCpulseCapture, ALCbackend, self);
AL_STRING_INIT(self->device_name);
}
static void ALCpulseCapture_Destruct(ALCpulseCapture *self)
{
AL_STRING_DEINIT(self->device_name);
ALCbackend_Destruct(STATIC_CAST(ALCbackend, self));
}
static void ALCpulseCapture_deviceCallback(pa_context *UNUSED(context), const pa_source_info *info, int eol, void *pdata)
{
pa_threaded_mainloop *loop = pdata;
const DevMap *iter;
DevMap entry;
int count;
if(eol)
{
pa_threaded_mainloop_signal(loop, 0);
return;
}
#define MATCH_INFO_NAME(iter) (al_string_cmp_cstr((iter)->device_name, info->name) == 0)
VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_INFO_NAME);
if(iter != VECTOR_ITER_END(CaptureDevices)) return;
#undef MATCH_INFO_NAME
AL_STRING_INIT(entry.name);
AL_STRING_INIT(entry.device_name);
al_string_copy_cstr(&entry.device_name, info->name);
count = 0;
while(1)
{
al_string_copy_cstr(&entry.name, info->description);
if(count != 0)
{
char str[64];
snprintf(str, sizeof(str), " #%d", count+1);
al_string_append_cstr(&entry.name, str);
}
#define MATCH_ENTRY(i) (al_string_cmp(entry.name, (i)->name) == 0)
VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_ENTRY);
if(iter == VECTOR_ITER_END(CaptureDevices)) break;
#undef MATCH_ENTRY
count++;
}
TRACE("Got device \"%s\", \"%s\"\n", al_string_get_cstr(entry.name), al_string_get_cstr(entry.device_name));
VECTOR_PUSH_BACK(CaptureDevices, entry);
}
static void ALCpulseCapture_probeDevices(void)
{
pa_threaded_mainloop *loop;
clear_devlist(&CaptureDevices);
if((loop=pa_threaded_mainloop_new()) &&
pa_threaded_mainloop_start(loop) >= 0)
{
pa_context *context;
pa_threaded_mainloop_lock(loop);
context = connect_context(loop, AL_FALSE);
if(context)
{
pa_operation *o;
pa_stream_flags_t flags;
pa_sample_spec spec;
pa_stream *stream;
flags = PA_STREAM_FIX_FORMAT | PA_STREAM_FIX_RATE |
PA_STREAM_FIX_CHANNELS | PA_STREAM_DONT_MOVE;
spec.format = PA_SAMPLE_S16NE;
spec.rate = 44100;
spec.channels = 1;
stream = ALCpulseCapture_connectStream(NULL, loop, context, flags,
NULL, &spec, NULL);
if(stream)
{
o = pa_context_get_source_info_by_name(context, pa_stream_get_device_name(stream),
ALCpulseCapture_deviceCallback, loop);
wait_for_operation(o, loop);
pa_stream_disconnect(stream);
pa_stream_unref(stream);
stream = NULL;
}
o = pa_context_get_source_info_list(context, ALCpulseCapture_deviceCallback, loop);
wait_for_operation(o, loop);
pa_context_disconnect(context);
pa_context_unref(context);
}
pa_threaded_mainloop_unlock(loop);
pa_threaded_mainloop_stop(loop);
}
if(loop)
pa_threaded_mainloop_free(loop);
}
static void ALCpulseCapture_contextStateCallback(pa_context *context, void *pdata)
{
ALCpulseCapture *self = pdata;
if(pa_context_get_state(context) == PA_CONTEXT_FAILED)
{
ERR("Received context failure!\n");
aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice);
}
pa_threaded_mainloop_signal(self->loop, 0);
}
static void ALCpulseCapture_streamStateCallback(pa_stream *stream, void *pdata)
{
ALCpulseCapture *self = pdata;
if(pa_stream_get_state(stream) == PA_STREAM_FAILED)
{
ERR("Received stream failure!\n");
aluHandleDisconnect(STATIC_CAST(ALCbackend,self)->mDevice);
}
pa_threaded_mainloop_signal(self->loop, 0);
}
static void ALCpulseCapture_sourceNameCallback(pa_context *UNUSED(context), const pa_source_info *info, int eol, void *pdata)
{
ALCpulseCapture *self = pdata;
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
if(eol)
{
pa_threaded_mainloop_signal(self->loop, 0);
return;
}
al_string_copy_cstr(&device->DeviceName, info->description);
}
static void ALCpulseCapture_streamMovedCallback(pa_stream *stream, void *pdata)
{
ALCpulseCapture *self = pdata;
al_string_copy_cstr(&self->device_name, pa_stream_get_device_name(stream));
TRACE("Stream moved to %s\n", al_string_get_cstr(self->device_name));
}
static pa_stream *ALCpulseCapture_connectStream(const char *device_name,
pa_threaded_mainloop *loop, pa_context *context,
pa_stream_flags_t flags, pa_buffer_attr *attr, pa_sample_spec *spec,
pa_channel_map *chanmap)
{
pa_stream_state_t state;
pa_stream *stream;
stream = pa_stream_new_with_proplist(context, "Capture Stream", spec, chanmap, prop_filter);
if(!stream)
{
ERR("pa_stream_new_with_proplist() failed: %s\n", pa_strerror(pa_context_errno(context)));
return NULL;
}
pa_stream_set_state_callback(stream, stream_state_callback, loop);
if(pa_stream_connect_record(stream, device_name, attr, flags) < 0)
{
ERR("Stream did not connect: %s\n", pa_strerror(pa_context_errno(context)));
pa_stream_unref(stream);
return NULL;
}
while((state=pa_stream_get_state(stream)) != PA_STREAM_READY)
{
if(!PA_STREAM_IS_GOOD(state))
{
ERR("Stream did not get ready: %s\n", pa_strerror(pa_context_errno(context)));
pa_stream_unref(stream);
return NULL;
}
pa_threaded_mainloop_wait(loop);
}
pa_stream_set_state_callback(stream, NULL, NULL);
return stream;
}
static ALCenum ALCpulseCapture_open(ALCpulseCapture *self, const ALCchar *name)
{
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
const char *pulse_name = NULL;
pa_stream_flags_t flags = 0;
pa_channel_map chanmap;
ALuint samples;
if(name)
{
const DevMap *iter;
if(VECTOR_SIZE(CaptureDevices) == 0)
ALCpulseCapture_probeDevices();
#define MATCH_NAME(iter) (al_string_cmp_cstr((iter)->name, name) == 0)
VECTOR_FIND_IF(iter, const DevMap, CaptureDevices, MATCH_NAME);
#undef MATCH_NAME
if(iter == VECTOR_ITER_END(CaptureDevices))
return ALC_INVALID_VALUE;
pulse_name = al_string_get_cstr(iter->device_name);
al_string_copy(&device->DeviceName, iter->name);
}
if(!pulse_open(&self->loop, &self->context, ALCpulseCapture_contextStateCallback, self))
return ALC_INVALID_VALUE;
pa_threaded_mainloop_lock(self->loop);
self->spec.rate = device->Frequency;
self->spec.channels = ChannelsFromDevFmt(device->FmtChans);
switch(device->FmtType)
{
case DevFmtUByte:
self->spec.format = PA_SAMPLE_U8;
break;
case DevFmtShort:
self->spec.format = PA_SAMPLE_S16NE;
break;
case DevFmtInt:
self->spec.format = PA_SAMPLE_S32NE;
break;
case DevFmtFloat:
self->spec.format = PA_SAMPLE_FLOAT32NE;
break;
case DevFmtByte:
case DevFmtUShort:
case DevFmtUInt:
ERR("%s capture samples not supported\n", DevFmtTypeString(device->FmtType));
pa_threaded_mainloop_unlock(self->loop);
goto fail;
}
if(pa_sample_spec_valid(&self->spec) == 0)
{
ERR("Invalid sample format\n");
pa_threaded_mainloop_unlock(self->loop);
goto fail;
}
if(!pa_channel_map_init_auto(&chanmap, self->spec.channels, PA_CHANNEL_MAP_WAVEEX))
{
ERR("Couldn't build map for channel count (%d)!\n", self->spec.channels);
pa_threaded_mainloop_unlock(self->loop);
goto fail;
}
samples = device->UpdateSize * device->NumUpdates;
samples = maxu(samples, 100 * device->Frequency / 1000);
self->attr.minreq = -1;
self->attr.prebuf = -1;
self->attr.maxlength = samples * pa_frame_size(&self->spec);
self->attr.tlength = -1;
self->attr.fragsize = minu(samples, 50*device->Frequency/1000) *
pa_frame_size(&self->spec);
flags |= PA_STREAM_START_CORKED|PA_STREAM_ADJUST_LATENCY;
if(!GetConfigValueBool(NULL, "pulse", "allow-moves", 0))
flags |= PA_STREAM_DONT_MOVE;
TRACE("Connecting to \"%s\"\n", pulse_name ? pulse_name : "(default)");
self->stream = ALCpulseCapture_connectStream(pulse_name, self->loop, self->context,
flags, &self->attr, &self->spec,
&chanmap);
if(!self->stream)
{
pa_threaded_mainloop_unlock(self->loop);
goto fail;
}
pa_stream_set_moved_callback(self->stream, ALCpulseCapture_streamMovedCallback, self);
pa_stream_set_state_callback(self->stream, ALCpulseCapture_streamStateCallback, self);
al_string_copy_cstr(&self->device_name, pa_stream_get_device_name(self->stream));
if(al_string_empty(device->DeviceName))
{
pa_operation *o = pa_context_get_source_info_by_name(
self->context, al_string_get_cstr(self->device_name),
ALCpulseCapture_sourceNameCallback, self
);
wait_for_operation(o, self->loop);
}
pa_threaded_mainloop_unlock(self->loop);
return ALC_NO_ERROR;
fail:
pulse_close(self->loop, self->context, self->stream);
self->loop = NULL;
self->context = NULL;
self->stream = NULL;
return ALC_INVALID_VALUE;
}
static void ALCpulseCapture_close(ALCpulseCapture *self)
{
pulse_close(self->loop, self->context, self->stream);
self->loop = NULL;
self->context = NULL;
self->stream = NULL;
al_string_clear(&self->device_name);
}
static ALCboolean ALCpulseCapture_start(ALCpulseCapture *self)
{
pa_operation *o;
o = pa_stream_cork(self->stream, 0, stream_success_callback, self->loop);
wait_for_operation(o, self->loop);
return ALC_TRUE;
}
static void ALCpulseCapture_stop(ALCpulseCapture *self)
{
pa_operation *o;
o = pa_stream_cork(self->stream, 1, stream_success_callback, self->loop);
wait_for_operation(o, self->loop);
}
static ALCenum ALCpulseCapture_captureSamples(ALCpulseCapture *self, ALCvoid *buffer, ALCuint samples)
{
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
ALCuint todo = samples * pa_frame_size(&self->spec);
/* Capture is done in fragment-sized chunks, so we loop until we get all
* that's available */
self->last_readable -= todo;
while(todo > 0)
{
size_t rem = todo;
if(self->cap_len == 0)
{
pa_stream_state_t state;
state = pa_stream_get_state(self->stream);
if(!PA_STREAM_IS_GOOD(state))
{
aluHandleDisconnect(device);
break;
}
if(pa_stream_peek(self->stream, &self->cap_store, &self->cap_len) < 0)
{
ERR("pa_stream_peek() failed: %s\n",
pa_strerror(pa_context_errno(self->context)));
aluHandleDisconnect(device);
break;
}
self->cap_remain = self->cap_len;
}
if(rem > self->cap_remain)
rem = self->cap_remain;
memcpy(buffer, self->cap_store, rem);
buffer = (ALbyte*)buffer + rem;
todo -= rem;
self->cap_store = (ALbyte*)self->cap_store + rem;
self->cap_remain -= rem;
if(self->cap_remain == 0)
{
pa_stream_drop(self->stream);
self->cap_len = 0;
}
}
if(todo > 0)
memset(buffer, ((device->FmtType==DevFmtUByte) ? 0x80 : 0), todo);
return ALC_NO_ERROR;
}
static ALCuint ALCpulseCapture_availableSamples(ALCpulseCapture *self)
{
ALCdevice *device = STATIC_CAST(ALCbackend,self)->mDevice;
size_t readable = self->cap_remain;
if(device->Connected)
{
ssize_t got = pa_stream_readable_size(self->stream);
if(got < 0)
{
ERR("pa_stream_readable_size() failed: %s\n", pa_strerror(got));
aluHandleDisconnect(device);
}
else if((size_t)got > self->cap_len)
readable += got - self->cap_len;
}
if(self->last_readable < readable)
self->last_readable = readable;
return self->last_readable / pa_frame_size(&self->spec);
}
static ALint64 ALCpulseCapture_getLatency(ALCpulseCapture *self)
{
pa_usec_t latency = 0;
int neg;
if(pa_stream_get_latency(self->stream, &latency, &neg) != 0)
{
ERR("Failed to get stream latency!\n");
return 0;
}
if(neg) latency = 0;
return (ALint64)minu64(latency, U64(0x7fffffffffffffff)/1000) * 1000;
}
static void ALCpulseCapture_lock(ALCpulseCapture *self)
{
pa_threaded_mainloop_lock(self->loop);
}
static void ALCpulseCapture_unlock(ALCpulseCapture *self)
{
pa_threaded_mainloop_unlock(self->loop);
}
typedef struct ALCpulseBackendFactory {
DERIVE_FROM_TYPE(ALCbackendFactory);
} ALCpulseBackendFactory;
#define ALCPULSEBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCpulseBackendFactory, ALCbackendFactory) } }
static ALCboolean ALCpulseBackendFactory_init(ALCpulseBackendFactory *self);
static void ALCpulseBackendFactory_deinit(ALCpulseBackendFactory *self);
static ALCboolean ALCpulseBackendFactory_querySupport(ALCpulseBackendFactory *self, ALCbackend_Type type);
static void ALCpulseBackendFactory_probe(ALCpulseBackendFactory *self, enum DevProbe type);
static ALCbackend* ALCpulseBackendFactory_createBackend(ALCpulseBackendFactory *self, ALCdevice *device, ALCbackend_Type type);
DEFINE_ALCBACKENDFACTORY_VTABLE(ALCpulseBackendFactory);
static ALCboolean ALCpulseBackendFactory_init(ALCpulseBackendFactory* UNUSED(self))
{
ALCboolean ret = ALC_FALSE;
VECTOR_INIT(PlaybackDevices);
VECTOR_INIT(CaptureDevices);
if(pulse_load())
{
pa_threaded_mainloop *loop;
pulse_ctx_flags = 0;
if(!GetConfigValueBool(NULL, "pulse", "spawn-server", 1))
pulse_ctx_flags |= PA_CONTEXT_NOAUTOSPAWN;
if((loop=pa_threaded_mainloop_new()) &&
pa_threaded_mainloop_start(loop) >= 0)
{
pa_context *context;
pa_threaded_mainloop_lock(loop);
context = connect_context(loop, AL_TRUE);
if(context)
{
ret = ALC_TRUE;
/* Some libraries (Phonon, Qt) set some pulseaudio properties
* through environment variables, which causes all streams in
* the process to inherit them. This attempts to filter those
* properties out by setting them to 0-length data. */
prop_filter = pa_proplist_new();
pa_proplist_set(prop_filter, PA_PROP_MEDIA_ROLE, NULL, 0);
pa_proplist_set(prop_filter, "phonon.streamid", NULL, 0);
pa_context_disconnect(context);
pa_context_unref(context);
}
pa_threaded_mainloop_unlock(loop);
pa_threaded_mainloop_stop(loop);
}
if(loop)
pa_threaded_mainloop_free(loop);
}
return ret;
}
static void ALCpulseBackendFactory_deinit(ALCpulseBackendFactory* UNUSED(self))
{
clear_devlist(&PlaybackDevices);
VECTOR_DEINIT(PlaybackDevices);
clear_devlist(&CaptureDevices);
VECTOR_DEINIT(CaptureDevices);
if(prop_filter)
pa_proplist_free(prop_filter);
prop_filter = NULL;
/* PulseAudio doesn't like being CloseLib'd sometimes */
}
static ALCboolean ALCpulseBackendFactory_querySupport(ALCpulseBackendFactory* UNUSED(self), ALCbackend_Type type)
{
if(type == ALCbackend_Playback || type == ALCbackend_Capture)
return ALC_TRUE;
return ALC_FALSE;
}
static void ALCpulseBackendFactory_probe(ALCpulseBackendFactory* UNUSED(self), enum DevProbe type)
{
switch(type)
{
case ALL_DEVICE_PROBE:
ALCpulsePlayback_probeDevices();
#define APPEND_ALL_DEVICES_LIST(e) AppendAllDevicesList(al_string_get_cstr((e)->name))
VECTOR_FOR_EACH(const DevMap, PlaybackDevices, APPEND_ALL_DEVICES_LIST);
#undef APPEND_ALL_DEVICES_LIST
break;
case CAPTURE_DEVICE_PROBE:
ALCpulseCapture_probeDevices();
#define APPEND_CAPTURE_DEVICE_LIST(e) AppendCaptureDeviceList(al_string_get_cstr((e)->name))
VECTOR_FOR_EACH(const DevMap, CaptureDevices, APPEND_CAPTURE_DEVICE_LIST);
#undef APPEND_CAPTURE_DEVICE_LIST
break;
}
}
static ALCbackend* ALCpulseBackendFactory_createBackend(ALCpulseBackendFactory* UNUSED(self), ALCdevice *device, ALCbackend_Type type)
{
if(type == ALCbackend_Playback)
{
ALCpulsePlayback *backend;
NEW_OBJ(backend, ALCpulsePlayback)(device);
if(!backend) return NULL;
return STATIC_CAST(ALCbackend, backend);
}
if(type == ALCbackend_Capture)
{
ALCpulseCapture *backend;
NEW_OBJ(backend, ALCpulseCapture)(device);
if(!backend) return NULL;
return STATIC_CAST(ALCbackend, backend);
}
return NULL;
}
#else /* PA_API_VERSION == 12 */
#warning "Unsupported API version, backend will be unavailable!"
typedef struct ALCpulseBackendFactory {
DERIVE_FROM_TYPE(ALCbackendFactory);
} ALCpulseBackendFactory;
#define ALCPULSEBACKENDFACTORY_INITIALIZER { { GET_VTABLE2(ALCpulseBackendFactory, ALCbackendFactory) } }
static ALCboolean ALCpulseBackendFactory_init(ALCpulseBackendFactory* UNUSED(self))
{
return ALC_FALSE;
}
static void ALCpulseBackendFactory_deinit(ALCpulseBackendFactory* UNUSED(self))
{
}
static ALCboolean ALCpulseBackendFactory_querySupport(ALCpulseBackendFactory* UNUSED(self), ALCbackend_Type UNUSED(type))
{
return ALC_FALSE;
}
static void ALCpulseBackendFactory_probe(ALCpulseBackendFactory* UNUSED(self), enum DevProbe UNUSED(type))
{
}
static ALCbackend* ALCpulseBackendFactory_createBackend(ALCpulseBackendFactory* UNUSED(self), ALCdevice* UNUSED(device), ALCbackend_Type UNUSED(type))
{
return NULL;
}
DEFINE_ALCBACKENDFACTORY_VTABLE(ALCpulseBackendFactory);
#endif /* PA_API_VERSION == 12 */
ALCbackendFactory *ALCpulseBackendFactory_getFactory(void)
{
static ALCpulseBackendFactory factory = ALCPULSEBACKENDFACTORY_INITIALIZER;
return STATIC_CAST(ALCbackendFactory, &factory);
}
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