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Add CarlaJackPlugin file

tags/1.9.4
falkTX 11 years ago
parent
78b8ad3fda
commit
d66947065c
1 changed files with 482 additions and 0 deletions
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      source/bridges/jackplugin/CarlaJackPlugin.cpp

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source/bridges/jackplugin/CarlaJackPlugin.cpp View File

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/*
* Carla Jack Plugin
* Copyright (C) 2014 Filipe Coelho <falktx@falktx.com>
*
* 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 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.
*
* For a full copy of the GNU General Public License see the doc/GPL.txt file.
*/

#include "CarlaEngine.hpp"
#include "CarlaHost.h"
#include "CarlaUtils.hpp"

#include "jackbridge/JackBridge.hpp"

//#include "CarlaEngine.hpp"
//#include "CarlaPlugin.hpp"
//#include "CarlaBackendUtils.hpp"
//#include "CarlaBridgeUtils.hpp"
//#include "CarlaMIDI.h"

// -------------------------------------------------------------------------------------------------------------------

struct _jack_client {
JackShutdownCallback shutdown_cb;
void* shutdown_ptr;

JackProcessCallback process_cb;
void* process_ptr;

_jack_client()
{
clear();
}

void clear()
{
shutdown_cb = nullptr;
shutdown_ptr = nullptr;
process_cb = nullptr;
process_ptr = nullptr;
}
};

static jack_client_t gJackClient;

// -------------------------------------------------------------------------------------------------------------------

struct _jack_port {
bool used;
char name[128+1];

_jack_port()
: used(false) {}
};

// system ports
static jack_port_t gPortSystemIn1; // 0
static jack_port_t gPortSystemIn2; // 1
static jack_port_t gPortSystemOut1; // 2
static jack_port_t gPortSystemOut2; // 3

// client ports
static jack_port_t gPortAudioIn1; // 4
static jack_port_t gPortAudioIn2; // 5
static jack_port_t gPortAudioOut1; // 6
static jack_port_t gPortAudioOut2; // 7
static jack_port_t gPortMidiIn; // 8
static jack_port_t gPortMidiOut; // 9

// -------------------------------------------------------------------------------------------------------------------

CARLA_EXPORT jack_client_t* jack_client_open(const char* client_name, jack_options_t options, jack_status_t* status, ...);
CARLA_EXPORT int jack_client_close(jack_client_t* client);

CARLA_EXPORT int jack_client_name_size();
CARLA_EXPORT char* jack_get_client_name(jack_client_t* client);

CARLA_EXPORT int jack_activate(jack_client_t* client);
CARLA_EXPORT int jack_deactivate(jack_client_t* client);
CARLA_EXPORT int jack_is_realtime(jack_client_t* client);

CARLA_EXPORT jack_nframes_t jack_get_sample_rate(jack_client_t* client);
CARLA_EXPORT jack_nframes_t jack_get_buffer_size(jack_client_t* client);

CARLA_EXPORT jack_port_t* jack_port_register(jack_client_t* client, const char* port_name, const char* port_type, unsigned long flags, unsigned long buffer_size);

CARLA_EXPORT const char* jack_port_name(const jack_port_t* port);

CARLA_EXPORT const char** jack_get_ports(jack_client_t*, const char* port_name_pattern, const char* type_name_pattern, unsigned long flags);
CARLA_EXPORT jack_port_t* jack_port_by_name(jack_client_t* client, const char* port_name);
CARLA_EXPORT jack_port_t* jack_port_by_id(jack_client_t* client, jack_port_id_t port_id);

CARLA_EXPORT int jack_connect(jack_client_t* client, const char* source_port, const char* destination_port);
CARLA_EXPORT int jack_disconnect(jack_client_t* client, const char* source_port, const char* destination_port);

CARLA_EXPORT void jack_on_shutdown(jack_client_t* client, JackShutdownCallback function, void* arg);
CARLA_EXPORT int jack_set_process_callback(jack_client_t* client, JackProcessCallback process_callback, void* arg);

CARLA_EXPORT void jack_set_info_function(void (*func)(const char*));
CARLA_EXPORT void jack_set_error_function(void (*func)(const char*));
CARLA_EXPORT void jack_free(void* ptr);

// -------------------------------------------------------------------------------------------------------------------

typedef void (*jack_error_callback)(const char* msg);
typedef void (*jack_info_callback)(const char* msg);

jack_error_callback sErrorCallback = nullptr;
jack_info_callback sInfoCallback = nullptr;

// -------------------------------------------------------------------------------------------------------------------

jack_client_t* jack_client_open(const char* client_name, jack_options_t /*options*/, jack_status_t* status, ...)
{
if (carla_is_engine_running())
{
if (status != nullptr)
*status = JackServerStarted;
return nullptr;
}

if (! carla_engine_init("JACK", client_name))
{
if (status != nullptr)
*status = JackServerFailed;
return nullptr;
}

if (! gPortSystemIn1.used)
{
gPortSystemIn1.used = true;
gPortSystemIn2.used = true;
gPortSystemOut1.used = true;
gPortSystemOut2.used = true;
std::strcpy(gPortSystemIn1.name, "system:capture_1");
std::strcpy(gPortSystemIn2.name, "system:capture_2");
std::strcpy(gPortSystemOut1.name, "system:playback_1");
std::strcpy(gPortSystemOut2.name, "system:playback_2");
}

return &gJackClient;
}

int jack_client_close(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, -1);

if (! carla_is_engine_running())
return -1;

carla_engine_close();
gJackClient.clear();
gPortAudioIn1.used = 0;
gPortAudioIn2.used = 0;
gPortAudioOut1.used = 0;
gPortAudioOut2.used = 0;
gPortMidiIn.used = 0;
gPortMidiOut.used = 0;
return 0;
}

// -------------------------------------------------------------------------------------------------------------------

int jack_client_name_size()
{
return 32+1; // same as JACK1
}

char* jack_get_client_name(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, nullptr);

if (const CarlaEngine* const engine = carla_get_engine())
return const_cast<char*>(engine->getName());

return nullptr;
}

// -------------------------------------------------------------------------------------------------------------------

int jack_activate(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, -1);

return 0;
}

int jack_deactivate(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, -1);

return 0;
}

int jack_is_realtime(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, 0);

return 1;
}

// -------------------------------------------------------------------------------------------------------------------

jack_nframes_t jack_get_sample_rate(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, 0);

return static_cast<uint32_t>(carla_get_sample_rate());
}

jack_nframes_t jack_get_buffer_size(jack_client_t* client)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, 0);

return carla_get_buffer_size();
}

// -------------------------------------------------------------------------------------------------------------------

jack_port_t* jack_port_register(jack_client_t* client, const char* port_name, const char* port_type, unsigned long flags, unsigned long)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, nullptr);

if (std::strcmp(port_type, JACK_DEFAULT_AUDIO_TYPE) == 0)
{
if (flags & JackPortIsInput)
{
if (gPortAudioIn1.used && gPortAudioIn2.used)
return nullptr;

if (! gPortAudioIn1.used)
{
std::strncpy(gPortAudioIn1.name, port_name, 128);
return &gPortAudioIn1;
}
else
{
std::strncpy(gPortAudioIn2.name, port_name, 128);
return &gPortAudioIn2;
}
}
else
{
if (gPortAudioOut1.used && gPortAudioOut2.used)
return nullptr;

if (! gPortAudioOut1.used)
{
std::strncpy(gPortAudioOut1.name, port_name, 128);
return &gPortAudioOut1;
}
else
{
std::strncpy(gPortAudioOut2.name, port_name, 128);
return &gPortAudioOut2;
}
}
}

if (std::strcmp(port_type, JACK_DEFAULT_MIDI_TYPE) == 0)
{
if (flags & JackPortIsInput)
{
if (gPortMidiIn.used)
return nullptr;
std::strncpy(gPortMidiIn.name, port_name, 128);
return &gPortMidiIn;
}
else
{
if (gPortMidiOut.used)
return nullptr;
std::strncpy(gPortMidiOut.name, port_name, 128);
return &gPortMidiOut;
}
}

return nullptr;
}

// -------------------------------------------------------------------------------------------------------------------

const char* jack_port_name(const jack_port_t* port)
{
return port->name;
}

// -------------------------------------------------------------------------------------------------------------------

const char** jack_get_ports(jack_client_t* client, const char* port_name_pattern, const char* type_name_pattern, unsigned long flags)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, nullptr);

if (port_name_pattern != nullptr)
{
if (std::strstr("system:playback_", port_name_pattern) == nullptr)
return nullptr;
if (std::strstr("system:capture_", port_name_pattern) == nullptr)
return nullptr;
}
if (type_name_pattern != nullptr)
{
if (std::strstr(JACK_DEFAULT_AUDIO_TYPE, type_name_pattern) == nullptr)
return nullptr;
}

uint numPorts = 0;

if (flags == 0)
{
numPorts = 4;
}
else
{
if (flags & JackPortIsInput)
numPorts += 2;
if (flags & JackPortIsOutput)
numPorts += 2;
}

if (numPorts == 0)
return nullptr;

const char** const ports = new const char*[numPorts+1];
uint i = 0;

if (flags == 0 || (flags & JackPortIsInput) != 0)
{
ports[i++] = gPortSystemIn1.name;
ports[i++] = gPortSystemIn1.name;
}
if (flags == 0 || (flags & JackPortIsOutput) != 0)
{
ports[i++] = gPortSystemOut1.name;
ports[i++] = gPortSystemOut1.name;
}
ports[i++] = nullptr;

return ports;
}

jack_port_t* jack_port_by_name(jack_client_t* client, const char* port_name)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, nullptr);
CARLA_SAFE_ASSERT_RETURN(gPortSystemIn1.used, nullptr);

if (std::strcmp(port_name, gPortSystemIn1.name) == 0)
return &gPortSystemIn1;
if (std::strcmp(port_name, gPortSystemIn2.name) == 0)
return &gPortSystemIn2;
if (std::strcmp(port_name, gPortSystemOut1.name) == 0)
return &gPortSystemOut1;
if (std::strcmp(port_name, gPortSystemOut2.name) == 0)
return &gPortSystemOut2;

if (gPortAudioIn1.used && std::strcmp(port_name, gPortAudioIn1.name) == 0)
return &gPortAudioIn1;
if (gPortAudioIn2.used && std::strcmp(port_name, gPortAudioIn2.name) == 0)
return &gPortAudioIn2;
if (gPortAudioOut1.used && std::strcmp(port_name, gPortAudioOut1.name) == 0)
return &gPortAudioOut1;
if (gPortAudioOut2.used && std::strcmp(port_name, gPortAudioOut2.name) == 0)
return &gPortAudioOut2;
if (gPortMidiIn.used && std::strcmp(port_name, gPortMidiIn.name) == 0)
return &gPortMidiIn;
if (gPortMidiOut.used && std::strcmp(port_name, gPortMidiOut.name) == 0)
return &gPortMidiOut;

return nullptr;
}

jack_port_t* jack_port_by_id(jack_client_t* client, jack_port_id_t port_id)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, nullptr);
CARLA_SAFE_ASSERT_RETURN(gPortSystemIn1.used, nullptr);

switch (port_id)
{
case 0:
return &gPortSystemIn1;
case 1:
return &gPortSystemIn2;
case 2:
return &gPortSystemOut1;
case 3:
return &gPortSystemOut2;
case 4:
if (gPortAudioIn1.used)
return &gPortAudioIn1;
break;
case 5:
if (gPortAudioIn2.used)
return &gPortAudioIn2;
break;
case 6:
if (gPortAudioOut1.used)
return &gPortAudioOut1;
break;
case 7:
if (gPortAudioOut2.used)
return &gPortAudioOut2;
break;
case 8:
if (gPortMidiIn.used)
return &gPortMidiIn;
break;
case 9:
if (gPortMidiOut.used)
return &gPortMidiOut;
break;
}

return nullptr;
}

// -------------------------------------------------------------------------------------------------------------------

int jack_connect(jack_client_t* client, const char*, const char*)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, -1);

return 0;
}

int jack_disconnect(jack_client_t* client, const char*, const char*)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, -1);

return 0;
}

// -------------------------------------------------------------------------------------------------------------------

void jack_on_shutdown(jack_client_t* client, JackShutdownCallback function, void* arg)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient,);

gJackClient.shutdown_cb = function;
gJackClient.shutdown_ptr = arg;
}

int jack_set_process_callback(jack_client_t* client, JackProcessCallback process_callback, void* arg)
{
CARLA_SAFE_ASSERT_RETURN(client == &gJackClient, -1);

gJackClient.process_cb = process_callback;
gJackClient.process_ptr = arg;
return 0;
}

// -------------------------------------------------------------------------------------------------------------------

void jack_set_error_function(void (*func)(const char*))
{
sErrorCallback = func;
}

void jack_set_info_function(void (*func)(const char*))
{
sInfoCallback = func;
}

void jack_free(void* ptr)
{
delete[] (char**)ptr;
}

// -------------------------------------------------------------------------------------------------------------------

CARLA_EXPORT void carla_register_all_plugins();
void carla_register_all_plugins() {}

// -------------------------------------------------------------------------------------------------------------------

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