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livetrax/libs/backends/jack/jack_utils.cc
John Emmas 458d4dc6de (Windows) Add support for finding the bundled version of Jack which comes with Mixbus 
A few things need to be tested / completed:-
    1) The code is currently guarded by #ifdef COMPILER_MSVC. This is just precautionary. If it builds okay with MinGW ,the guard can be removed.
    2) Windows Playback and Capture devices almost always have different names. This needs to get accommodated in our Backend dialog (as in Mixbus)
    3) Windows Playback and Capture devices will almost always contain spaces. We need to accommodate this when writing to .jackdrc (surround them in quote marks)
2014-05-27 14:48:44 +01:00

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/*
Copyright (C) 2010 Paul Davis
Copyright (C) 2011 Tim Mayberry
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program 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 General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef HAVE_ALSA
#include <alsa/asoundlib.h>
#endif
#ifdef __APPLE__
#include <CoreAudio/CoreAudio.h>
#include <CoreFoundation/CFString.h>
#include <sys/param.h>
#include <mach-o/dyld.h>
#endif
#ifdef PLATFORM_WINDOWS
#include <shobjidl.h> // Needed for
#include <shlguid.h> // 'IShellLink'
#endif
#ifdef HAVE_PORTAUDIO
#include <portaudio.h>
#endif
#include <jack/jack.h>
#include <fstream>
#include <boost/scoped_ptr.hpp>
#include <glibmm/miscutils.h>
#include "pbd/epa.h"
#include "pbd/error.h"
#include "pbd/convert.h"
#include "pbd/file_utils.h"
#include "pbd/search_path.h"
#include "jack_utils.h"
#ifdef __APPLE
#include <CFBundle.h>
#endif
#include "i18n.h"
using namespace std;
using namespace PBD;
namespace ARDOUR {
// The pretty driver names
const char * const portaudio_driver_name = X_("Portaudio");
const char * const coreaudio_driver_name = X_("CoreAudio");
const char * const alsa_driver_name = X_("ALSA");
const char * const oss_driver_name = X_("OSS");
const char * const freebob_driver_name = X_("FreeBoB");
const char * const ffado_driver_name = X_("FFADO");
const char * const netjack_driver_name = X_("NetJACK");
const char * const dummy_driver_name = X_("Dummy");
}
namespace {
// The real driver names
const char * const portaudio_driver_command_line_name = X_("portaudio");
const char * const coreaudio_driver_command_line_name = X_("coreaudio");
const char * const alsa_driver_command_line_name = X_("alsa");
const char * const oss_driver_command_line_name = X_("oss");
const char * const freebob_driver_command_line_name = X_("freebob");
const char * const ffado_driver_command_line_name = X_("firewire");
const char * const netjack_driver_command_line_name = X_("netjack");
const char * const dummy_driver_command_line_name = X_("dummy");
// should we provide more "pretty" names like above?
const char * const alsa_seq_midi_driver_name = X_("alsa");
const char * const alsa_raw_midi_driver_name = X_("alsarawmidi");
const char * const alsaseq_midi_driver_name = X_("seq");
const char * const alsaraw_midi_driver_name = X_("raw");
const char * const winmme_midi_driver_name = X_("winmme");
const char * const coremidi_midi_driver_name = X_("coremidi");
// this should probably be translated
const char * const default_device_name = X_("Default");
}
static ARDOUR::MidiOptions midi_options;
std::string
get_none_string ()
{
return _("None");
}
void
ARDOUR::get_jack_audio_driver_names (vector<string>& audio_driver_names)
{
#ifdef PLATFORM_WINDOWS
audio_driver_names.push_back (portaudio_driver_name);
#elif __APPLE__
audio_driver_names.push_back (coreaudio_driver_name);
#else
#ifdef HAVE_ALSA
audio_driver_names.push_back (alsa_driver_name);
#endif
audio_driver_names.push_back (oss_driver_name);
audio_driver_names.push_back (freebob_driver_name);
audio_driver_names.push_back (ffado_driver_name);
#endif
audio_driver_names.push_back (netjack_driver_name);
audio_driver_names.push_back (dummy_driver_name);
}
void
ARDOUR::get_jack_default_audio_driver_name (string& audio_driver_name)
{
vector<string> drivers;
get_jack_audio_driver_names (drivers);
audio_driver_name = drivers.front ();
}
void
ARDOUR::get_jack_sample_rate_strings (vector<string>& samplerates)
{
// do these really need to be translated?
samplerates.push_back (_("8000Hz"));
samplerates.push_back (_("22050Hz"));
samplerates.push_back (_("44100Hz"));
samplerates.push_back (_("48000Hz"));
samplerates.push_back (_("88200Hz"));
samplerates.push_back (_("96000Hz"));
samplerates.push_back (_("192000Hz"));
}
string
ARDOUR::get_jack_default_sample_rate ()
{
return _("48000Hz");
}
void
ARDOUR::get_jack_period_size_strings (std::vector<std::string>& period_sizes)
{
period_sizes.push_back ("32");
period_sizes.push_back ("64");
period_sizes.push_back ("128");
period_sizes.push_back ("256");
period_sizes.push_back ("512");
period_sizes.push_back ("1024");
period_sizes.push_back ("2048");
period_sizes.push_back ("4096");
period_sizes.push_back ("8192");
}
string
ARDOUR::get_jack_default_period_size ()
{
return "1024";
}
void
ARDOUR::get_jack_dither_mode_strings (const string& driver, vector<string>& dither_modes)
{
dither_modes.push_back (get_none_string ());
if (driver == alsa_driver_name ) {
dither_modes.push_back (_("Triangular"));
dither_modes.push_back (_("Rectangular"));
dither_modes.push_back (_("Shaped"));
}
}
string
ARDOUR::get_jack_default_dither_mode (const string& /*driver*/)
{
return get_none_string ();
}
string
ARDOUR::get_jack_latency_string (string samplerate, float periods, string period_size)
{
uint32_t rate = atoi (samplerate);
float psize = atof (period_size);
char buf[32];
snprintf (buf, sizeof(buf), "%.1fmsec", (periods * psize) / (rate/1000.0));
return buf;
}
bool
get_jack_command_line_audio_driver_name (const string& driver_name, string& command_line_name)
{
using namespace ARDOUR;
if (driver_name == portaudio_driver_name) {
command_line_name = portaudio_driver_command_line_name;
return true;
} else if (driver_name == coreaudio_driver_name) {
command_line_name = coreaudio_driver_command_line_name;
return true;
} else if (driver_name == alsa_driver_name) {
command_line_name = alsa_driver_command_line_name;
return true;
} else if (driver_name == oss_driver_name) {
command_line_name = oss_driver_command_line_name;
return true;
} else if (driver_name == freebob_driver_name) {
command_line_name = freebob_driver_command_line_name;
return true;
} else if (driver_name == ffado_driver_name) {
command_line_name = ffado_driver_command_line_name;
return true;
} else if (driver_name == netjack_driver_name) {
command_line_name = netjack_driver_command_line_name;
return true;
} else if (driver_name == dummy_driver_name) {
command_line_name = dummy_driver_command_line_name;
return true;
}
return false;
}
bool
get_jack_command_line_audio_device_name (const string& driver_name,
const string& device_name, string& command_line_device_name)
{
using namespace ARDOUR;
device_map_t devices;
get_jack_device_names_for_audio_driver (driver_name, devices);
for (device_map_t::const_iterator i = devices.begin (); i != devices.end(); ++i) {
if (i->first == device_name) {
command_line_device_name = i->second;
return true;
}
}
return false;
}
bool
get_jack_command_line_dither_mode (const string& dither_mode, string& command_line_dither_mode)
{
using namespace ARDOUR;
if (dither_mode == _("Triangular")) {
command_line_dither_mode = "triangular";
return true;
} else if (dither_mode == _("Rectangular")) {
command_line_dither_mode = "rectangular";
return true;
} else if (dither_mode == _("Shaped")) {
command_line_dither_mode = "shaped";
return true;
}
return false;
}
void
ARDOUR::get_jack_alsa_device_names (device_map_t& devices)
{
#ifdef HAVE_ALSA
snd_ctl_t *handle;
snd_ctl_card_info_t *info;
snd_pcm_info_t *pcminfo;
snd_ctl_card_info_alloca(&info);
snd_pcm_info_alloca(&pcminfo);
string devname;
int cardnum = -1;
int device = -1;
while (snd_card_next (&cardnum) >= 0 && cardnum >= 0) {
devname = "hw:";
devname += PBD::to_string (cardnum, std::dec);
if (snd_ctl_open (&handle, devname.c_str(), 0) >= 0 && snd_ctl_card_info (handle, info) >= 0) {
if (snd_ctl_card_info (handle, info) < 0) {
continue;
}
string card_name = snd_ctl_card_info_get_name (info);
/* change devname to use ID, not number */
devname = "hw:";
devname += snd_ctl_card_info_get_id (info);
while (snd_ctl_pcm_next_device (handle, &device) >= 0 && device >= 0) {
/* only detect duplex devices here. more
* complex arrangements are beyond our scope
*/
snd_pcm_info_set_device (pcminfo, device);
snd_pcm_info_set_subdevice (pcminfo, 0);
snd_pcm_info_set_stream (pcminfo, SND_PCM_STREAM_CAPTURE);
if (snd_ctl_pcm_info (handle, pcminfo) >= 0) {
snd_pcm_info_set_device (pcminfo, device);
snd_pcm_info_set_subdevice (pcminfo, 0);
snd_pcm_info_set_stream (pcminfo, SND_PCM_STREAM_PLAYBACK);
if (snd_ctl_pcm_info (handle, pcminfo) >= 0) {
devname += ',';
devname += PBD::to_string (device, std::dec);
devices.insert (std::make_pair (card_name, devname));
}
}
}
snd_ctl_close(handle);
}
}
#else
/* silence a compiler unused variable warning */
(void) devices;
#endif
}
#ifdef __APPLE__
static OSStatus
getDeviceUIDFromID( AudioDeviceID id, char *name, size_t nsize)
{
UInt32 size = sizeof(CFStringRef);
CFStringRef UI;
OSStatus res = AudioDeviceGetProperty(id, 0, false,
kAudioDevicePropertyDeviceUID, &size, &UI);
if (res == noErr)
CFStringGetCString(UI,name,nsize,CFStringGetSystemEncoding());
CFRelease(UI);
return res;
}
#endif
void
ARDOUR::get_jack_coreaudio_device_names (device_map_t& devices)
{
#ifdef __APPLE__
// Find out how many Core Audio devices are there, if any...
// (code snippet gently "borrowed" from St?hane Letz jackdmp;)
OSStatus err;
Boolean isWritable;
UInt32 outSize = sizeof(isWritable);
err = AudioHardwareGetPropertyInfo(kAudioHardwarePropertyDevices,
&outSize, &isWritable);
if (err == noErr) {
// Calculate the number of device available...
int numCoreDevices = outSize / sizeof(AudioDeviceID);
// Make space for the devices we are about to get...
AudioDeviceID *coreDeviceIDs = new AudioDeviceID [numCoreDevices];
err = AudioHardwareGetProperty(kAudioHardwarePropertyDevices,
&outSize, (void *) coreDeviceIDs);
if (err == noErr) {
// Look for the CoreAudio device name...
char coreDeviceName[256];
UInt32 nameSize;
for (int i = 0; i < numCoreDevices; i++) {
nameSize = sizeof (coreDeviceName);
/* enforce duplex devices only */
err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
0, true, kAudioDevicePropertyStreams,
&outSize, &isWritable);
if (err != noErr || outSize == 0) {
continue;
}
err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
0, false, kAudioDevicePropertyStreams,
&outSize, &isWritable);
if (err != noErr || outSize == 0) {
continue;
}
err = AudioDeviceGetPropertyInfo(coreDeviceIDs[i],
0, true, kAudioDevicePropertyDeviceName,
&outSize, &isWritable);
if (err == noErr) {
err = AudioDeviceGetProperty(coreDeviceIDs[i],
0, true, kAudioDevicePropertyDeviceName,
&nameSize, (void *) coreDeviceName);
if (err == noErr) {
char drivername[128];
// this returns the unique id for the device
// that must be used on the commandline for jack
if (getDeviceUIDFromID(coreDeviceIDs[i], drivername, sizeof (drivername)) == noErr) {
devices.insert (make_pair (coreDeviceName, drivername));
}
}
}
}
}
delete [] coreDeviceIDs;
}
#else
/* silence a compiler unused variable warning */
(void) devices;
#endif
}
void
ARDOUR::get_jack_portaudio_device_names (device_map_t& devices)
{
#ifdef HAVE_PORTAUDIO
if (Pa_Initialize() != paNoError) {
return;
}
for (PaDeviceIndex i = 0; i < Pa_GetDeviceCount (); ++i) {
string api_name;
string readable_name;
string jack_device_name;
const PaDeviceInfo* device_info = Pa_GetDeviceInfo(i);
if (device_info != NULL) { // it should never be ?
api_name = Pa_GetHostApiInfo (device_info->hostApi)->name;
readable_name = api_name + " " + device_info->name;
jack_device_name = api_name + "::" + device_info->name;
devices.insert (make_pair (readable_name, jack_device_name));
}
}
Pa_Terminate();
#else
/* silence a compiler unused variable warning */
(void) devices;
#endif
}
void
ARDOUR::get_jack_oss_device_names (device_map_t& devices)
{
devices.insert (make_pair (default_device_name, default_device_name));
}
void
ARDOUR::get_jack_freebob_device_names (device_map_t& devices)
{
devices.insert (make_pair (default_device_name, default_device_name));
}
void
ARDOUR::get_jack_ffado_device_names (device_map_t& devices)
{
devices.insert (make_pair (default_device_name, default_device_name));
}
void
ARDOUR::get_jack_netjack_device_names (device_map_t& devices)
{
devices.insert (make_pair (default_device_name, default_device_name));
}
void
ARDOUR::get_jack_dummy_device_names (device_map_t& devices)
{
devices.insert (make_pair (default_device_name, default_device_name));
}
bool
ARDOUR::get_jack_device_names_for_audio_driver (const string& driver_name, device_map_t& devices)
{
devices.clear();
if (driver_name == portaudio_driver_name) {
get_jack_portaudio_device_names (devices);
} else if (driver_name == coreaudio_driver_name) {
get_jack_coreaudio_device_names (devices);
} else if (driver_name == alsa_driver_name) {
get_jack_alsa_device_names (devices);
} else if (driver_name == oss_driver_name) {
get_jack_oss_device_names (devices);
} else if (driver_name == freebob_driver_name) {
get_jack_freebob_device_names (devices);
} else if (driver_name == ffado_driver_name) {
get_jack_ffado_device_names (devices);
} else if (driver_name == netjack_driver_name) {
get_jack_netjack_device_names (devices);
} else if (driver_name == dummy_driver_name) {
get_jack_dummy_device_names (devices);
}
return !devices.empty();
}
std::vector<std::string>
ARDOUR::get_jack_device_names_for_audio_driver (const string& driver_name)
{
std::vector<std::string> readable_names;
device_map_t devices;
get_jack_device_names_for_audio_driver (driver_name, devices);
for (device_map_t::const_iterator i = devices.begin (); i != devices.end(); ++i) {
readable_names.push_back (i->first);
}
return readable_names;
}
bool
ARDOUR::get_jack_audio_driver_supports_two_devices (const string& driver)
{
return (driver == alsa_driver_name || driver == oss_driver_name);
}
bool
ARDOUR::get_jack_audio_driver_supports_latency_adjustment (const string& driver)
{
return (driver == alsa_driver_name || driver == coreaudio_driver_name ||
driver == ffado_driver_name || driver == portaudio_driver_name);
}
bool
ARDOUR::get_jack_audio_driver_supports_setting_period_count (const string& driver)
{
return !(driver == dummy_driver_name || driver == coreaudio_driver_name ||
driver == portaudio_driver_name);
}
bool
ARDOUR::get_jack_server_application_names (std::vector<std::string>& server_names)
{
#ifdef PLATFORM_WINDOWS
server_names.push_back ("jackd.exe");
#else
server_names.push_back ("jackd");
server_names.push_back ("jackdmp");
#endif
return !server_names.empty();
}
void
ARDOUR::set_path_env_for_jack_autostart (const vector<std::string>& dirs)
{
#ifdef __APPLE__
// push it back into the environment so that auto-started JACK can find it.
// XXX why can't we just expect OS X users to have PATH set correctly? we can't ...
setenv ("PATH", Searchpath(dirs).to_string().c_str(), 1);
#else
/* silence a compiler unused variable warning */
(void) dirs;
#endif
}
bool
ARDOUR::get_jack_server_dir_paths (vector<std::string>& server_dir_paths)
{
#ifdef __APPLE__
/* this magic lets us finds the path to the OSX bundle, and then
we infer JACK's location from there
*/
char execpath[MAXPATHLEN+1];
uint32_t pathsz = sizeof (execpath);
_NSGetExecutablePath (execpath, &pathsz);
server_dir_paths.push_back (Glib::path_get_dirname (execpath));
#endif
Searchpath sp(string(g_getenv("PATH")));
#ifdef PLATFORM_WINDOWS
// N.B. The #define (immediately below) can be safely removed once we know that this code builds okay with mingw
#ifdef COMPILER_MSVC
IShellLinkA *pISL = NULL;
IPersistFile *ppf = NULL;
// Mixbus creates a Windows shortcut giving the location of its
// own (bundled) version of Jack. Let's see if that shortcut exists
if (SUCCEEDED (CoCreateInstance(CLSID_ShellLink, NULL, CLSCTX_INPROC_SERVER, IID_IShellLink, (void**)&pISL)))
{
if (SUCCEEDED (pISL->QueryInterface(IID_IPersistFile, (LPVOID*)&ppf)))
{
char target_path[MAX_PATH];
char shortcut_pathA[MAX_PATH];
WCHAR shortcut_pathW[MAX_PATH];
// Our Windows installer should have created a shortcut to the Jack
// server so let's start by finding out what drive it got installed on
if (char *env_path = getenv ("windir"))
{
strcpy (shortcut_pathA, env_path);
shortcut_pathA[2] = '\0'; // Gives us just the drive letter and colon
}
else // Assume 'C:'
strcpy (shortcut_pathA, "C:");
strcat (shortcut_pathA, "\\Program Files (x86)\\Jack\\Start Jack.lnk");
MultiByteToWideChar (CP_ACP, MB_PRECOMPOSED, shortcut_pathA, -1, shortcut_pathW, MAX_PATH);
// If it did, load the shortcut into our persistent file
if (SUCCEEDED (ppf->Load(shortcut_pathW, 0)))
{
// Read the target information from the shortcut object
if (S_OK == (pISL->GetPath (target_path, MAX_PATH, NULL, SLGP_UNCPRIORITY)))
{
char *p = strrchr (target_path, '\\');
if (p)
{
*p = NULL;
sp.push_back (target_path);
}
}
}
}
}
if (ppf)
ppf->Release();
if (pISL)
pISL->Release();
#endif
gchar *install_dir = g_win32_get_package_installation_directory_of_module (NULL);
if (install_dir) {
sp.push_back (install_dir);
g_free (install_dir);
}
// don't try and use a system wide JACK install yet.
#else
if (sp.empty()) {
sp.push_back ("/usr/bin");
sp.push_back ("/bin");
sp.push_back ("/usr/local/bin");
sp.push_back ("/opt/local/bin");
}
#endif
std::copy (sp.begin(), sp.end(), std::back_inserter(server_dir_paths));
return !server_dir_paths.empty();
}
bool
ARDOUR::get_jack_server_paths (const vector<std::string>& server_dir_paths,
const vector<string>& server_names,
vector<std::string>& server_paths)
{
for (vector<string>::const_iterator i = server_names.begin(); i != server_names.end(); ++i) {
Glib::PatternSpec ps (*i);
find_matching_files_in_directories (server_dir_paths, ps, server_paths);
}
return !server_paths.empty();
}
bool
ARDOUR::get_jack_server_paths (vector<std::string>& server_paths)
{
vector<std::string> server_dirs;
if (!get_jack_server_dir_paths (server_dirs)) {
return false;
}
vector<string> server_names;
if (!get_jack_server_application_names (server_names)) {
return false;
}
if (!get_jack_server_paths (server_dirs, server_names, server_paths)) {
return false;
}
return !server_paths.empty();
}
bool
ARDOUR::get_jack_default_server_path (std::string& server_path)
{
vector<std::string> server_paths;
if (!get_jack_server_paths (server_paths)) {
return false;
}
server_path = server_paths.front ();
return true;
}
string
quote_string (const string& str)
{
return "\"" + str + "\"";
}
ARDOUR::JackCommandLineOptions::JackCommandLineOptions ()
: server_path ()
, timeout(0)
, no_mlock(false)
, ports_max(128)
, realtime(true)
, priority(0)
, unlock_gui_libs(false)
, verbose(false)
, temporary(true)
, driver()
, input_device()
, output_device()
, num_periods(2)
, period_size(1024)
, samplerate(48000)
, input_latency(0)
, output_latency(0)
, hardware_metering(false)
, hardware_monitoring(false)
, dither_mode()
, force16_bit(false)
, soft_mode(false)
, midi_driver()
{
}
bool
ARDOUR::get_jack_command_line_string (JackCommandLineOptions& options, string& command_line, bool for_latency_measurement)
{
vector<string> args;
args.push_back (options.server_path);
#ifdef PLATFORM_WINDOWS
// must use sync mode on windows
args.push_back ("-S");
// this needs to be added now on windows
if (!options.midi_driver.empty () && options.midi_driver != get_none_string ()) {
args.push_back ("-X");
args.push_back (options.midi_driver);
}
#endif
/* XXX hack to enforce qjackctl-like behaviour */
if (options.timeout == 0) {
options.timeout = 200;
}
if (options.timeout) {
args.push_back ("-t");
args.push_back (to_string (options.timeout, std::dec));
}
if (options.no_mlock) {
args.push_back ("-m");
}
args.push_back ("-p");
args.push_back (to_string(options.ports_max, std::dec));
if (options.realtime) {
args.push_back ("-R");
if (options.priority != 0) {
args.push_back ("-P");
args.push_back (to_string(options.priority, std::dec));
}
} else {
args.push_back ("-r");
}
if (options.unlock_gui_libs) {
args.push_back ("-u");
}
if (options.verbose) {
args.push_back ("-v");
}
if (options.temporary) {
args.push_back ("-T");
}
if (options.driver == alsa_driver_name) {
if (options.midi_driver == alsa_seq_midi_driver_name) {
args.push_back ("-X");
args.push_back ("alsa_midi");
} else if (options.midi_driver == alsa_raw_midi_driver_name) {
args.push_back ("-X");
args.push_back ("alsarawmidi");
}
}
string command_line_driver_name;
string command_line_input_device_name;
string command_line_output_device_name;
if (!get_jack_command_line_audio_driver_name (options.driver, command_line_driver_name)) {
return false;
}
args.push_back ("-d");
args.push_back (command_line_driver_name);
if (options.driver != dummy_driver_name) {
if (options.output_device.empty() && options.input_device.empty()) {
return false;
}
if (!get_jack_command_line_audio_device_name (options.driver,
options.input_device, command_line_input_device_name)) {
return false;
}
if (!get_jack_command_line_audio_device_name (options.driver,
options.output_device, command_line_output_device_name)) {
return false;
}
if (options.input_device.empty()) {
// playback only
if (options.output_device.empty()) {
return false;
}
args.push_back ("-P");
} else if (options.output_device.empty()) {
// capture only
if (options.input_device.empty()) {
return false;
}
args.push_back ("-C");
} else if (options.input_device != options.output_device) {
// capture and playback on two devices if supported
if (get_jack_audio_driver_supports_two_devices (options.driver)) {
args.push_back ("-C");
args.push_back (command_line_input_device_name);
args.push_back ("-P");
args.push_back (command_line_output_device_name);
} else {
return false;
}
}
if (options.input_channels) {
args.push_back ("-i");
args.push_back (to_string (options.input_channels, std::dec));
}
if (options.output_channels) {
args.push_back ("-o");
args.push_back (to_string (options.output_channels, std::dec));
}
if (get_jack_audio_driver_supports_setting_period_count (options.driver)) {
args.push_back ("-n");
args.push_back (to_string (options.num_periods, std::dec));
}
} else {
// jackd dummy backend
if (options.input_channels) {
args.push_back ("-C");
args.push_back (to_string (options.input_channels, std::dec));
}
if (options.output_channels) {
args.push_back ("-P");
args.push_back (to_string (options.output_channels, std::dec));
}
}
args.push_back ("-r");
args.push_back (to_string (options.samplerate, std::dec));
args.push_back ("-p");
args.push_back (to_string (options.period_size, std::dec));
if (!for_latency_measurement && get_jack_audio_driver_supports_latency_adjustment (options.driver)) {
if (options.input_latency) {
args.push_back ("-I");
args.push_back (to_string (options.input_latency, std::dec));
}
if (options.output_latency) {
args.push_back ("-O");
args.push_back (to_string (options.output_latency, std::dec));
}
}
if (options.driver != dummy_driver_name) {
if (options.input_device == options.output_device && options.input_device != default_device_name) {
args.push_back ("-d");
args.push_back (command_line_input_device_name);
}
}
if (options.driver == alsa_driver_name) {
if (options.hardware_metering) {
args.push_back ("-M");
}
if (options.hardware_monitoring) {
args.push_back ("-H");
}
string command_line_dither_mode;
if (get_jack_command_line_dither_mode (options.dither_mode, command_line_dither_mode)) {
args.push_back ("-z");
args.push_back (command_line_dither_mode);
}
if (options.force16_bit) {
args.push_back ("-S");
}
if (options.soft_mode) {
args.push_back ("-s");
}
}
if (options.driver == alsa_driver_name || options.driver == coreaudio_driver_name) {
if (options.midi_driver != alsa_seq_midi_driver_name) {
if (!options.midi_driver.empty() && options.midi_driver != get_none_string ()) {
args.push_back ("-X");
args.push_back (options.midi_driver);
}
}
}
ostringstream oss;
for (vector<string>::const_iterator i = args.begin(); i != args.end();) {
oss << *i;
if (++i != args.end()) oss << ' ';
}
command_line = oss.str();
return true;
}
string
ARDOUR::get_jack_server_config_file_name ()
{
return ".jackdrc";
}
std::string
ARDOUR::get_jack_server_user_config_dir_path ()
{
return Glib::get_home_dir ();
}
std::string
ARDOUR::get_jack_server_user_config_file_path ()
{
return Glib::build_filename (get_jack_server_user_config_dir_path (), get_jack_server_config_file_name ());
}
bool
ARDOUR::write_jack_config_file (const std::string& config_file_path, const string& command_line)
{
ofstream jackdrc (config_file_path.c_str());
if (!jackdrc) {
error << string_compose (_("cannot open JACK rc file %1 to store parameters"), config_file_path) << endmsg;
return false;
}
jackdrc << command_line << endl;
jackdrc.close ();
return true;
}
vector<string>
ARDOUR::enumerate_midi_options ()
{
if (midi_options.empty()) {
#ifdef HAVE_ALSA
midi_options.push_back (make_pair (_("(legacy) ALSA raw devices"), alsaraw_midi_driver_name));
midi_options.push_back (make_pair (_("(legacy) ALSA sequencer"), alsaseq_midi_driver_name));
midi_options.push_back (make_pair (_("ALSA (JACK1, 0.124 and later)"), alsa_seq_midi_driver_name));
midi_options.push_back (make_pair (_("ALSA (JACK2, 1.9.8 and later)"), alsa_raw_midi_driver_name));
#endif
#ifdef HAVE_PORTAUDIO
/* Windows folks: what name makes sense here? Are there other
choices as well ?
*/
midi_options.push_back (make_pair (_("Multimedia Extension"), winmme_midi_driver_name));
#endif
#ifdef __APPLE__
midi_options.push_back (make_pair (_("CoreMIDI"), coremidi_midi_driver_name));
#endif
}
vector<string> v;
v.push_back (get_none_string());
for (MidiOptions::const_iterator i = midi_options.begin(); i != midi_options.end(); ++i) {
v.push_back (i->first);
}
return v;
}
int
ARDOUR::set_midi_option (ARDOUR::JackCommandLineOptions& options, const string& opt)
{
if (opt.empty() || opt == get_none_string()) {
options.midi_driver = "";
return 0;
}
for (MidiOptions::const_iterator i = midi_options.begin(); i != midi_options.end(); ++i) {
if (i->first == opt) {
options.midi_driver = i->second;
return 0;
}
}
return -1;
}
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