+++ /dev/null
-/*
- * JACK Rack
- *
- * Original:
- * Copyright (C) Robert Ham 2002, 2003 (node@users.sourceforge.net)
- *
- * Modification for MLT:
- * Copyright (C) 2004 Ushodaya Enterprises Limited
- * Author: Dan Dennedy <dan@dennedy.org>
- *
- * 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.
- */
-
-#include <jack/jack.h>
-#include <glib.h>
-#include <stdio.h>
-#include <string.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <time.h>
-#include <ctype.h>
-
-#include "process.h"
-#include "lock_free_fifo.h"
-#include "plugin.h"
-#include "jack_rack.h"
-
-#ifndef _
-#define _(x) x
-#endif
-
-#define USEC_PER_SEC 1000000
-#define MSEC_PER_SEC 1000
-#define TIME_RUN_SKIP_COUNT 5
-#define MAX_BUFFER_SIZE 4096
-
-jack_nframes_t sample_rate;
-jack_nframes_t buffer_size;
-
-static void
-jack_shutdown_cb (void * data)
-{
- process_info_t * procinfo = data;
-
- procinfo->quit = TRUE;
-}
-
-/** process messages for plugins' control ports */
-void process_control_port_messages (process_info_t * procinfo) {
- plugin_t * plugin;
- unsigned long control;
- unsigned long channel;
- gint copy;
-
- if (!procinfo->chain) return;
-
- for (plugin = procinfo->chain; plugin; plugin = plugin->next)
- {
- if (plugin->desc->control_port_count > 0)
- for (control = 0; control < plugin->desc->control_port_count; control++)
- for (copy = 0; copy < plugin->copies; copy++)
- {
- while (lff_read (plugin->holders[copy].ui_control_fifos + control,
- plugin->holders[copy].control_memory + control) == 0);
- }
-
- if (plugin->wet_dry_enabled)
- for (channel = 0; channel < procinfo->channels; channel++)
- {
- while (lff_read (plugin->wet_dry_fifos + channel,
- plugin->wet_dry_values + channel) == 0);
- }
- }
-}
-
-int get_jack_buffers (process_info_t * procinfo, jack_nframes_t frames) {
- unsigned long channel;
-
- for (channel = 0; channel < procinfo->channels; channel++)
- {
- procinfo->jack_input_buffers[channel] = jack_port_get_buffer (procinfo->jack_input_ports[channel], frames);
- if (!procinfo->jack_input_buffers[channel])
- {
- fprintf (stderr, "%s: no jack buffer for input port %ld\n", __FUNCTION__, channel);
- return 1;
- }
-
- procinfo->jack_output_buffers[channel] = jack_port_get_buffer (procinfo->jack_output_ports[channel], frames);
- if (!procinfo->jack_output_buffers[channel])
- {
- fprintf (stderr, "%s: no jack buffer for output port %ld\n", __FUNCTION__, channel);
- return 1;
- }
- }
-
- return 0;
-}
-
-plugin_t *
-get_first_enabled_plugin (process_info_t * procinfo)
-{
- plugin_t * first_enabled;
-
- if (!procinfo->chain) return NULL;
-
- for (first_enabled = procinfo->chain;
- first_enabled;
- first_enabled = first_enabled->next)
- {
- if (first_enabled->enabled) return first_enabled;
- }
-
- return NULL;
-}
-
-plugin_t *
-get_last_enabled_plugin (process_info_t * procinfo)
-{
- plugin_t * last_enabled;
-
- if (!procinfo->chain) return NULL;
-
- for (last_enabled = procinfo->chain_end;
- last_enabled;
- last_enabled = last_enabled->prev)
- {
- if (last_enabled->enabled) return last_enabled;
- }
-
- return NULL;
-}
-
-void
-connect_chain (process_info_t * procinfo, jack_nframes_t frames)
-{
- plugin_t * first_enabled, * last_enabled, * plugin;
- gint copy;
- unsigned long channel;
- if (!procinfo->chain) return;
-
- first_enabled = get_first_enabled_plugin (procinfo);
- if (!first_enabled) return;
-
- last_enabled = get_last_enabled_plugin (procinfo);
-
- /* sort out the aux ports */
- plugin = first_enabled;
- do
- {
- if (plugin->desc->aux_channels > 0 && plugin->enabled)
- {
- if (procinfo->jack_client)
- {
- for (copy = 0; copy < plugin->copies; copy++)
- for (channel = 0; channel < plugin->desc->aux_channels; channel++)
- plugin->descriptor->
- connect_port (plugin->holders[copy].instance,
- plugin->desc->audio_aux_port_indicies[channel],
- jack_port_get_buffer (plugin->holders[copy].aux_ports[channel], frames));
- }
- else
- {
- for (copy = 0; copy < frames; copy++)
- procinfo->silent_buffer[copy] = 0.0;
-
- for (copy = 0; copy < plugin->copies; copy++)
- for (channel = 0; channel < plugin->desc->aux_channels; channel++)
- plugin->descriptor->
- connect_port (plugin->holders[copy].instance,
- plugin->desc->audio_aux_port_indicies[channel],
- procinfo->silent_buffer);
- }
- }
- }
- while ( (plugin != last_enabled) && (plugin = plugin->next) );
-
- /* ensure that all the of the enabled plugins are connected to their memory */
- plugin_connect_output_ports (first_enabled);
- if (first_enabled != last_enabled)
- {
- plugin_connect_input_ports (last_enabled, last_enabled->prev->audio_output_memory);
- for (plugin = first_enabled->next; plugin; plugin = plugin->next)
- {
- if (plugin->enabled)
- {
- plugin_connect_input_ports (plugin, plugin->prev->audio_output_memory);
- plugin_connect_output_ports (plugin);
- }
- }
- }
-
- /* input buffers for first plugin */
- plugin_connect_input_ports (first_enabled, procinfo->jack_input_buffers);
-}
-
-void
-process_chain (process_info_t * procinfo, jack_nframes_t frames)
-{
- plugin_t * first_enabled;
- plugin_t * last_enabled = NULL;
- plugin_t * plugin;
- unsigned long channel;
- unsigned long i;
-
- if (procinfo->jack_client)
- {
- LADSPA_Data zero_signal[frames];
- guint copy;
-
- /* set the zero signal to zero */
- for (channel = 0; channel < frames; channel++)
- zero_signal[channel] = 0.0;
-
- /* possibly set aux output channels to zero if they're not enabled */
- for (plugin = procinfo->chain; plugin; plugin = plugin->next)
- if (!plugin->enabled &&
- plugin->desc->aux_channels > 0 &&
- !plugin->desc->aux_are_input)
- for (copy = 0; copy < plugin->copies; copy++)
- for (channel = 0; channel < plugin->desc->aux_channels; channel++)
- memcpy (jack_port_get_buffer (plugin->holders[copy].aux_ports[channel], frames),
- zero_signal, sizeof (LADSPA_Data) * frames);
- }
-
- first_enabled = get_first_enabled_plugin (procinfo);
-
- /* no chain; just copy input to output */
- if (!procinfo->chain || !first_enabled)
- {
- unsigned long channel;
- for (channel = 0; channel < procinfo->channels; channel++)
- {
- memcpy (procinfo->jack_output_buffers[channel],
- procinfo->jack_input_buffers[channel],
- sizeof(LADSPA_Data) * frames);
- }
- return;
- }
-
- /* all past here is guaranteed to have at least 1 enabled plugin */
-
- last_enabled = get_last_enabled_plugin (procinfo);
-
- for (plugin = first_enabled;
- plugin;
- plugin = plugin->next)
- {
- if (plugin->enabled)
- {
- for (i = 0; i < plugin->copies; i++)
- plugin->descriptor->run (plugin->holders[i].instance, frames);
-
- if (plugin->wet_dry_enabled)
- for (channel = 0; channel < procinfo->channels; channel++)
- for (i = 0; i < frames; i++)
- {
- plugin->audio_output_memory[channel][i] *= plugin->wet_dry_values[channel];
- plugin->audio_output_memory[channel][i] += plugin->audio_input_memory[channel][i] * (1.0 - plugin->wet_dry_values[channel]);
- }
-
- if (plugin == last_enabled)
- break;
- }
- else
- {
-
- /* copy the data through */
- for (i = 0; i < procinfo->channels; i++)
- memcpy (plugin->audio_output_memory[i],
- plugin->prev->audio_output_memory[i],
- sizeof(LADSPA_Data) * frames);
- }
- }
-
- /* copy the last enabled data to the jack ports */
- for (i = 0; i < procinfo->channels; i++)
- memcpy (procinfo->jack_output_buffers[i],
- last_enabled->audio_output_memory[i],
- sizeof(LADSPA_Data) * frames);
-
-}
-
-int process_ladspa (process_info_t * procinfo, jack_nframes_t frames,
- LADSPA_Data ** inputs, LADSPA_Data ** outputs) {
- unsigned long channel;
-
- if (!procinfo)
- {
- fprintf (stderr, "%s: no process_info from jack!\n", __FUNCTION__);
- return 1;
- }
-
- if (procinfo->quit == TRUE)
- return 1;
-
- process_control_port_messages (procinfo);
-
- for (channel = 0; channel < procinfo->channels; channel++)
- {
- procinfo->jack_input_buffers[channel] = inputs[channel];
- if (!procinfo->jack_input_buffers[channel])
- {
- fprintf (stderr, "%s: no jack buffer for input port %ld\n", __FUNCTION__, channel);
- return 1;
- }
-
- procinfo->jack_output_buffers[channel] = outputs[channel];
- if (!procinfo->jack_output_buffers[channel])
- {
- fprintf (stderr, "%s: no jack buffer for output port %ld\n", __FUNCTION__, channel);
- return 1;
- }
- }
-
- connect_chain (procinfo, frames);
-
- process_chain (procinfo, frames);
-
- return 0;
-}
-
-int process_jack (jack_nframes_t frames, void * data) {
- int err;
- process_info_t * procinfo;
-
- procinfo = (process_info_t *) data;
-
- if (!procinfo)
- {
- fprintf (stderr, "%s: no process_info from jack!\n", __FUNCTION__);
- return 1;
- }
-
- if (procinfo->port_count == 0)
- return 0;
-
- if (procinfo->quit == TRUE)
- return 1;
-
- process_control_port_messages (procinfo);
-
- err = get_jack_buffers (procinfo, frames);
- if (err)
- {
- fprintf(stderr, "%s: failed to get jack ports, not processing\n", __FUNCTION__);
- return 0;
- }
-
- connect_chain (procinfo, frames);
-
- process_chain (procinfo, frames);
-
- return 0;
-}
-
-
-
-/*******************************************
- ************** non RT stuff ***************
- *******************************************/
-
-static int
-process_info_connect_jack (process_info_t * procinfo)
-{
- printf (_("Connecting to JACK server with client name '%s'\n"), procinfo->jack_client_name);
-
- procinfo->jack_client = jack_client_new (procinfo->jack_client_name);
-
- if (!procinfo->jack_client)
- {
- fprintf (stderr, "%s: could not create jack client; is the jackd server running?\n", __FUNCTION__);
- return 1;
- }
-
- printf (_("Connected to JACK server\n"));
-
- jack_set_process_callback (procinfo->jack_client, process_jack, procinfo);
- jack_on_shutdown (procinfo->jack_client, jack_shutdown_cb, procinfo);
-
- return 0;
-}
-
-static void
-process_info_connect_port (process_info_t * procinfo,
- gshort in,
- unsigned long port_index,
- const char * port_name)
-{
- const char ** jack_ports;
- unsigned long jack_port_index;
- int err;
- char * full_port_name;
-
- jack_ports = jack_get_ports (procinfo->jack_client, NULL, NULL,
- JackPortIsPhysical | (in ? JackPortIsOutput : JackPortIsInput));
-
- if (!jack_ports)
- return;
-
- for (jack_port_index = 0;
- jack_ports[jack_port_index] && jack_port_index <= port_index;
- jack_port_index++)
- {
- if (jack_port_index != port_index)
- continue;
-
- full_port_name = g_strdup_printf ("%s:%s", procinfo->jack_client_name, port_name);
-
- printf (_("Connecting ports '%s' and '%s'\n"), full_port_name, jack_ports[jack_port_index]);
-
- err = jack_connect (procinfo->jack_client,
- in ? jack_ports[jack_port_index] : full_port_name,
- in ? full_port_name : jack_ports[jack_port_index]);
-
- if (err)
- fprintf (stderr, "%s: error connecting ports '%s' and '%s'\n",
- __FUNCTION__, full_port_name, jack_ports[jack_port_index]);
- else
- printf (_("Connected ports '%s' and '%s'\n"), full_port_name, jack_ports[jack_port_index]);
-
- free (full_port_name);
- }
-
- free (jack_ports);
-}
-
-int
-process_info_set_port_count (process_info_t * procinfo,
- unsigned long port_count, gboolean connect_inputs, gboolean connect_outputs)
-{
- unsigned long i;
- char * port_name;
- jack_port_t ** port_ptr;
- gshort in;
-
- if (procinfo->port_count >= port_count)
- return -1;
-
- if (procinfo->port_count == 0)
- {
- procinfo->jack_input_ports = g_malloc (sizeof (jack_port_t *) * port_count);
- procinfo->jack_output_ports = g_malloc (sizeof (jack_port_t *) * port_count);
-
- procinfo->jack_input_buffers = g_malloc (sizeof (LADSPA_Data *) * port_count);
- procinfo->jack_output_buffers = g_malloc (sizeof (LADSPA_Data *) * port_count);
- }
- else
- {
- procinfo->jack_input_ports = g_realloc (procinfo->jack_input_ports, sizeof (jack_port_t *) * port_count);
- procinfo->jack_output_ports = g_realloc (procinfo->jack_output_ports, sizeof (jack_port_t *) * port_count);
-
- procinfo->jack_input_buffers = g_realloc (procinfo->jack_input_buffers, sizeof (LADSPA_Data *) * port_count);
- procinfo->jack_output_buffers = g_realloc (procinfo->jack_output_buffers, sizeof (LADSPA_Data *) * port_count);
- }
-
- for (i = procinfo->port_count; i < port_count; i++)
- {
- for (in = 0; in < 2; in++)
- {
- port_name = g_strdup_printf ("%s_%ld", in ? "in" : "out", i + 1);
-
- //printf (_("Creating %s port %s\n"), in ? "input" : "output", port_name);
-
- port_ptr = (in ? &procinfo->jack_input_ports[i]
- : &procinfo->jack_output_ports[i]);
-
- *port_ptr = jack_port_register (procinfo->jack_client,
- port_name,
- JACK_DEFAULT_AUDIO_TYPE,
- in ? JackPortIsInput : JackPortIsOutput,
- 0);
-
- if (!*port_ptr)
- {
- fprintf (stderr, "%s: could not register port '%s'; aborting\n",
- __FUNCTION__, port_name);
- return 1;
- }
-
- //printf (_("Created %s port %s\n"), in ? "input" : "output", port_name);
-
- if ((in && connect_inputs) || (!in && connect_outputs))
- process_info_connect_port (procinfo, in, i, port_name);
-
- g_free (port_name);
- }
- }
-
- procinfo->port_count = port_count;
-
- return 0;
-}
-
-void
-process_info_set_channels (process_info_t * procinfo,
- unsigned long channels, gboolean connect_inputs, gboolean connect_outputs)
-{
- process_info_set_port_count (procinfo, channels, connect_inputs, connect_outputs);
- procinfo->channels = channels;
-}
-
-process_info_t *
-process_info_new (const char * client_name, unsigned long rack_channels,
- gboolean connect_inputs, gboolean connect_outputs)
-{
- process_info_t * procinfo;
- char * jack_client_name;
- int err;
-
- procinfo = g_malloc (sizeof (process_info_t));
-
- procinfo->chain = NULL;
- procinfo->chain_end = NULL;
- procinfo->jack_client = NULL;
- procinfo->port_count = 0;
- procinfo->jack_input_ports = NULL;
- procinfo->jack_output_ports = NULL;
- procinfo->channels = rack_channels;
- procinfo->quit = FALSE;
-
- if ( client_name == NULL )
- {
- sample_rate = 48000; // should be set externally before calling process_ladspa
- buffer_size = MAX_BUFFER_SIZE;
- procinfo->silent_buffer = g_malloc (sizeof (LADSPA_Data) * buffer_size );
- procinfo->jack_input_buffers = g_malloc (sizeof (LADSPA_Data *) * rack_channels);
- procinfo->jack_output_buffers = g_malloc (sizeof (LADSPA_Data *) * rack_channels);
-
- return procinfo;
- }
-
- /* sort out the client name */
- procinfo->jack_client_name = jack_client_name = strdup (client_name);
- for (err = 0; jack_client_name[err] != '\0'; err++)
- {
- if (jack_client_name[err] == ' ')
- jack_client_name[err] = '_';
- else if (!isalnum (jack_client_name[err]))
- { /* shift all the chars up one (to remove the non-alphanumeric char) */
- int i;
- for (i = err; jack_client_name[i] != '\0'; i++)
- jack_client_name[i] = jack_client_name[i + 1];
- }
- else if (isupper (jack_client_name[err]))
- jack_client_name[err] = tolower (jack_client_name[err]);
- }
-
- err = process_info_connect_jack (procinfo);
- if (err)
- {
-/* g_free (procinfo); */
- return NULL;
-/* abort (); */
- }
-
- sample_rate = jack_get_sample_rate (procinfo->jack_client);
- buffer_size = jack_get_sample_rate (procinfo->jack_client);
-
- jack_set_process_callback (procinfo->jack_client, process_jack, procinfo);
- jack_on_shutdown (procinfo->jack_client, jack_shutdown_cb, procinfo);
-
- jack_activate (procinfo->jack_client);
-
- err = process_info_set_port_count (procinfo, rack_channels, connect_inputs, connect_outputs);
- if (err)
- return NULL;
-
- return procinfo;
-}
-
-void
-process_info_destroy (process_info_t * procinfo) {
- if (procinfo->jack_client)
- {
- jack_deactivate (procinfo->jack_client);
- jack_client_close (procinfo->jack_client);
- }
- g_free (procinfo->silent_buffer);
- g_free (procinfo->jack_input_ports);
- g_free (procinfo->jack_output_ports);
- g_free (procinfo->jack_input_buffers);
- g_free (procinfo->jack_output_buffers);
- g_free (procinfo);
-}
-
-void process_quit (process_info_t * procinfo) {
- procinfo->quit = TRUE;
-}
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