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-rw-r--r--hosts/lv2_jack_host.c114
-rw-r--r--hosts/lv2_simple_jack_host.c46
2 files changed, 89 insertions, 71 deletions
diff --git a/hosts/lv2_jack_host.c b/hosts/lv2_jack_host.c
index 4a9995f..7c8ef60 100644
--- a/hosts/lv2_jack_host.c
+++ b/hosts/lv2_jack_host.c
@@ -30,11 +30,12 @@
#define MIDI_BUFFER_SIZE 1024
struct Port {
- SLV2PortClass class;
- SLV2Port slv2_port;
- jack_port_t* jack_port; /**< For audio and MIDI ports, otherwise NULL */
- float control; /**< For control ports, otherwise 0.0f */
- LV2_MIDI* midi_buffer; /**< For midi ports, otherwise NULL */
+ SLV2PortDirection direction;
+ SLV2PortType type;
+ SLV2Port slv2_port;
+ jack_port_t* jack_port; /**< For audio and MIDI ports, otherwise NULL */
+ float control; /**< For control ports, otherwise 0.0f */
+ LV2_MIDI* midi_buffer; /**< For midi ports, otherwise NULL */
};
@@ -170,7 +171,8 @@ create_port(struct JackHost* host,
{
struct Port* const port = &host->ports[port_index];
- port->class = SLV2_UNKNOWN_PORT_CLASS;
+ port->direction = SLV2_PORT_DIRECTION_UNKNOWN;
+ port->type = SLV2_PORT_TYPE_UNKNOWN;
port->slv2_port = slv2_plugin_get_port_by_index(host->plugin, port_index);
port->jack_port = NULL;
port->control = 0.0f;
@@ -181,41 +183,52 @@ create_port(struct JackHost* host,
/* Get the port symbol (label) for console printing */
char* symbol = slv2_port_get_symbol(host->plugin, port->slv2_port);
- /* Get the 'class' (not data type) of the port (control input, audio output, etc) */
- port->class = slv2_port_get_class(host->plugin, port->slv2_port);
+ /* Get the direction of the port (input, output) */
+ port->direction = slv2_port_get_direction(host->plugin, port->slv2_port);
+
+ /* Get the (data) type of the port (control, audio, MIDI, OSC) */
+ port->type = slv2_port_get_type(host->plugin, port->slv2_port);
+
+ if (port->type == SLV2_PORT_TYPE_CONTROL)
+ port->control = slv2_port_get_default_value(host->plugin, port->slv2_port);
+
+ enum JackPortFlags jack_flags = 0;
+ switch (port->direction) {
+ case SLV2_PORT_DIRECTION_INPUT:
+ jack_flags = JackPortIsInput; break;
+ case SLV2_PORT_DIRECTION_OUTPUT:
+ jack_flags = JackPortIsOutput; break;
+ default:
+ // FIXME: check if port connection is is optional and die if not
+ slv2_instance_connect_port(host->instance, port_index, NULL);
+ return;
+ }
- /* Connect the port based on it's 'class' */
- switch (port->class) {
- case SLV2_CONTROL_INPUT:
- port->control = slv2_port_get_default_value(host->plugin, port->slv2_port);
- slv2_instance_connect_port(host->instance, port_index, &port->control);
- printf("Set %s to %f\n", symbol, host->ports[port_index].control);
- break;
- case SLV2_CONTROL_OUTPUT:
+ /* Set control values */
+ if (port->direction == SLV2_PORT_DIRECTION_INPUT && port->type == SLV2_PORT_TYPE_CONTROL) {
+ port->control = slv2_port_get_default_value(host->plugin, port->slv2_port);
+ printf("Set %s to %f\n", symbol, host->ports[port_index].control);
+ }
+
+ /* Connect the port based on it's type */
+ switch (port->type) {
+ case SLV2_PORT_TYPE_CONTROL:
slv2_instance_connect_port(host->instance, port_index, &port->control);
break;
- case SLV2_AUDIO_INPUT:
+ case SLV2_PORT_TYPE_AUDIO:
port->jack_port = jack_port_register(host->jack_client,
- symbol, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
+ symbol, JACK_DEFAULT_AUDIO_TYPE, jack_flags, 0);
break;
- case SLV2_AUDIO_OUTPUT:
- port->jack_port = jack_port_register(host->jack_client,
- symbol, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
- break;
- case SLV2_MIDI_INPUT:
+ case SLV2_PORT_TYPE_MIDI:
port->jack_port = jack_port_register(host->jack_client,
symbol, JACK_DEFAULT_MIDI_TYPE, JackPortIsInput, 0);
port->midi_buffer = lv2midi_new(MIDI_BUFFER_SIZE);
slv2_instance_connect_port(host->instance, port_index, port->midi_buffer);
break;
- case SLV2_MIDI_OUTPUT:
- port->jack_port = jack_port_register(host->jack_client,
- symbol, JACK_DEFAULT_MIDI_TYPE, JackPortIsOutput, 0);
- port->midi_buffer = lv2midi_new(MIDI_BUFFER_SIZE);
- slv2_instance_connect_port(host->instance, port_index, port->midi_buffer);
- break;
default:
- fprintf(stderr, "ERROR: Unknown port class\n");
+ // FIXME: check if port connection is is optional and die if not
+ slv2_instance_connect_port(host->instance, port_index, NULL);
+ fprintf(stderr, "WARNING: Unknown port type, port not connected.\n");
}
free(symbol);
@@ -233,32 +246,34 @@ jack_process_cb(jack_nframes_t nframes, void* data)
if (!host->ports[p].jack_port)
continue;
- if (host->ports[p].class == SLV2_AUDIO_INPUT
- || host->ports[p].class == SLV2_AUDIO_OUTPUT) {
+ if (host->ports[p].type == SLV2_PORT_TYPE_AUDIO) {
+
slv2_instance_connect_port(host->instance, p,
jack_port_get_buffer(host->ports[p].jack_port, nframes));
- } else if (host->ports[p].class == SLV2_MIDI_INPUT) {
- void* jack_buffer = jack_port_get_buffer(host->ports[p].jack_port, nframes);
+
+ } else if (host->ports[p].type == SLV2_PORT_TYPE_MIDI) {
lv2midi_reset_buffer(host->ports[p].midi_buffer);
-
- LV2_MIDIState state;
- lv2midi_reset_state(&state, host->ports[p].midi_buffer, nframes);
- const jack_nframes_t event_count
- = jack_midi_get_event_count(jack_buffer);
-
- jack_midi_event_t ev;
+ if (host->ports[p].direction == SLV2_PORT_DIRECTION_INPUT) {
+ void* jack_buffer = jack_port_get_buffer(host->ports[p].jack_port, nframes);
- for (jack_nframes_t e=0; e < event_count; ++e) {
- jack_midi_event_get(&ev, jack_buffer, e);
- lv2midi_put_event(&state, (double)ev.time, ev.size, ev.buffer);
- }
+ lv2midi_reset_buffer(host->ports[p].midi_buffer);
- } else if (host->ports[p].class == SLV2_MIDI_OUTPUT) {
+ LV2_MIDIState state;
+ lv2midi_reset_state(&state, host->ports[p].midi_buffer, nframes);
- lv2midi_reset_buffer(host->ports[p].midi_buffer);
-
+ const jack_nframes_t event_count
+ = jack_midi_get_event_count(jack_buffer);
+
+ jack_midi_event_t ev;
+
+ for (jack_nframes_t e=0; e < event_count; ++e) {
+ jack_midi_event_get(&ev, jack_buffer, e);
+ lv2midi_put_event(&state, (double)ev.time, ev.size, ev.buffer);
+ }
+
+ }
}
}
@@ -270,7 +285,8 @@ jack_process_cb(jack_nframes_t nframes, void* data)
/* Deliver output */
for (uint32_t p=0; p < host->num_ports; ++p) {
if (host->ports[p].jack_port
- && host->ports[p].class == SLV2_MIDI_OUTPUT) {
+ && host->ports[p].direction == SLV2_PORT_DIRECTION_OUTPUT
+ && host->ports[p].type == SLV2_PORT_TYPE_MIDI) {
void* jack_buffer = jack_port_get_buffer(host->ports[p].jack_port, nframes);
diff --git a/hosts/lv2_simple_jack_host.c b/hosts/lv2_simple_jack_host.c
index d0fabc1..4b1bcc3 100644
--- a/hosts/lv2_simple_jack_host.c
+++ b/hosts/lv2_simple_jack_host.c
@@ -160,32 +160,34 @@ create_port(struct JackHost* host,
host->jack_ports[index] = NULL;
host->controls[index] = 0.0f;
- /* Get the 'class' of the port (control input, audio output, etc) */
- SLV2PortClass class = slv2_port_get_class(host->plugin, port);
+ /* Get the direction of the port (input, output) */
+ SLV2PortDirection direction = slv2_port_get_direction(host->plugin, port);
- /* Connect the port based on it's 'class' */
- switch (class) {
- case SLV2_CONTROL_INPUT:
- host->controls[index] = slv2_port_get_default_value(host->plugin, port);
- slv2_instance_connect_port(host->instance, index, &host->controls[index]);
- printf("Set %s to %f\n", symbol, host->controls[index]);
- break;
- case SLV2_CONTROL_OUTPUT:
+ /* Get the (data) type of the port (control, audio, MIDI, OSC) */
+ SLV2PortType type = slv2_port_get_type(host->plugin, port);
+
+ /* Connect control ports to controls array */
+ if (type == SLV2_PORT_TYPE_CONTROL) {
+
+ /* Set default control values for inputs */
+ if (direction == SLV2_PORT_DIRECTION_INPUT) {
+ host->controls[index] = slv2_port_get_default_value(host->plugin, port);
+ printf("Set %s to %f\n", symbol, host->controls[index]);
+ }
+
slv2_instance_connect_port(host->instance, index, &host->controls[index]);
- break;
- case SLV2_AUDIO_INPUT:
- host->jack_ports[index] = jack_port_register(host->jack_client,
- symbol, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
- break;
- case SLV2_AUDIO_OUTPUT:
- host->jack_ports[index] = jack_port_register(host->jack_client,
- symbol, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
- break;
- default:
+
+ } else if (type == SLV2_PORT_TYPE_AUDIO) {
+
+ host->jack_ports[index] = jack_port_register(host->jack_client, symbol,
+ JACK_DEFAULT_AUDIO_TYPE,
+ (direction == SLV2_PORT_DIRECTION_INPUT) ? JackPortIsInput : JackPortIsOutput, 0);
+
+ } else {
// Simple examples don't have to be robust :)
- die("ERROR: Unknown port type, aborting messily!");
+ die("ERROR: Unknown port type, aborting messily!\n");
}
-
+
free(symbol);
}
generated by cgit v1.2.1 (git 2.18.0) at 2024-07-05 18:26:52 +0000