Split jack_host into slv2_simple_jack_host and slv2_host, added MIDI support to slv2_host.

git-svn-id: http://svn.drobilla.net/lad/slv2@251 a436a847-0d15-0410-975c-d299462d15a1

1 files changed, 0 insertions, 220 deletions

diff --git a/examples/hosts/jack_host.c b/examples/hosts/jack_host.c
deleted file mode 100644
index 655c939..0000000
--- a/examples/hosts/jack_host.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/* LibSLV2 Jack Example Host
- * Copyright (C) 2006 Dave Robillard <drobilla@connect.carleton.ca>
- *  
- * 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.,
- * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <slv2/slv2.h>
-#include <jack/jack.h>
-
-
-/** This program's data */
-struct JackHost {
-	jack_client_t* jack_client; /**< Jack client */
-	SLV2Plugin*    plugin;      /**< Plugin "class" (actually just a few strings) */
-	SLV2Instance*  instance;    /**< Plugin "instance" (loaded shared lib) */
-	uint32_t       num_ports;   /**< Size of the two following arrays: */
-	jack_port_t**  jack_ports;  /**< For audio ports, otherwise NULL */
-	float*         controls;    /**< For control ports, otherwise 0.0f */
-};
-
-
-void die(const char* msg);
-void create_port(struct JackHost* host, uint32_t port_index);
-int  jack_process_cb(jack_nframes_t nframes, void* data);
-void list_plugins(SLV2List list);
-
-
-int
-main(int argc, char** argv)
-{
-	struct JackHost host;
-	host.jack_client = NULL;
-	host.num_ports   = 0;
-	host.jack_ports  = NULL;
-	host.controls    = NULL;
-	
-	/* Find all installed plugins */
-	SLV2List plugins = slv2_list_new();
-	slv2_list_load_all(plugins);
-	//slv2_list_load_bundle(plugins, "http://www.scs.carleton.ca/~drobilla/files/Amp-swh.lv2");
-
-	/* Find the plugin to run */
-	const char* plugin_uri = (argc == 2) ? argv[1] : NULL;
-	
-	if (!plugin_uri) {
-		fprintf(stderr, "\nYou must specify a plugin URI to load.\n");
-		fprintf(stderr, "\nKnown plugins:\n\n");
-		list_plugins(plugins);
-		return EXIT_FAILURE;
-	}
-
-	printf("URI:\t%s\n", plugin_uri);
-	host.plugin = slv2_list_get_plugin_by_uri(plugins, plugin_uri);
-	
-	if (!host.plugin) {
-		fprintf(stderr, "Failed to find plugin %s.\n", plugin_uri);
-		slv2_list_free(plugins);
-		return EXIT_FAILURE;
-	}
-
-	/* Get the plugin's name */
-	char* name = slv2_plugin_get_name(host.plugin);
-	printf("Name:\t%s\n", name);
-	
-	/* Connect to JACK (with plugin name as client name) */
-	host.jack_client = jack_client_open(name, JackNullOption, NULL);
-	free(name);
-	if (!host.jack_client)
-		die("Failed to connect to JACK.");
-	else
-		printf("Connected to JACK.\n");
-	
-	/* Instantiate the plugin */
-	host.instance = slv2_plugin_instantiate(
-		host.plugin, jack_get_sample_rate(host.jack_client), NULL);
-	if (!host.instance)
-		die("Failed to instantiate plugin.\n");
-	else
-		printf("Succesfully instantiated plugin.\n");
-
-	jack_set_process_callback(host.jack_client, &jack_process_cb, (void*)(&host));
-	
-	/* Create ports */
-	host.num_ports  = slv2_plugin_get_num_ports(host.plugin);
-	host.jack_ports = calloc((size_t)host.num_ports, sizeof(jack_port_t*));
-	host.controls   = calloc((size_t)host.num_ports, sizeof(float*));
-	
-	for (uint32_t i=0; i < host.num_ports; ++i)
-		create_port(&host, i);
-	
-	/* Activate plugin and JACK */
-	slv2_instance_activate(host.instance);
-	jack_activate(host.jack_client);
-	
-	/* Run */
-	printf("Press enter to quit: ");
-	getc(stdin);
-	printf("\n");
-	
-	/* Deactivate plugin and JACK */
-	slv2_instance_free(host.instance);
-	slv2_list_free(plugins);
-	
-	printf("Shutting down JACK.\n");
-	for (unsigned long i=0; i < host.num_ports; ++i) {
-		if (host.jack_ports[i] != NULL) {
-			jack_port_unregister(host.jack_client, host.jack_ports[i]);
-			host.jack_ports[i] = NULL;
-		}
-	}
-	jack_client_close(host.jack_client);
-	
-	return 0;
-}
-
-
-/** Abort and exit on error */
-void
-die(const char* msg)
-{
-	fprintf(stderr, "%s\n", msg);
-	exit(EXIT_FAILURE);
-}
-
-
-/** Creates a port and connects the plugin instance to it's data location.
- *
- * For audio ports, creates a jack port and connects plugin port to buffer.
- *
- * For control ports, sets controls array to default value and connects plugin
- * port to that element.
- */
-void
-create_port(struct JackHost* host,
-            uint32_t         port_index)
-{
-	/* Make sure this is a float port */
-	char* type = slv2_port_get_data_type(host->plugin, port_index);
-	if (strcmp(type, SLV2_DATA_TYPE_FLOAT))
-		die("Unrecognized data type, aborting.");
-	free(type);
-
-	/* Get the port symbol (label) for console printing */
-	char* symbol = slv2_port_get_symbol(host->plugin, port_index);
-	
-	/* Initialize the port array elements */
-	host->jack_ports[port_index] = NULL;
-	host->controls[port_index]   = 0.0f;
-	
-	/* Get the 'class' of the port (control input, audio output, etc) */
-	enum SLV2PortClass class = slv2_port_get_class(host->plugin, port_index);
-	
-	/* Connect the port based on it's 'class' */
-	switch (class) {
-	case SLV2_CONTROL_RATE_INPUT:
-		host->controls[port_index] = slv2_port_get_default_value(host->plugin, port_index);
-		slv2_instance_connect_port(host->instance, port_index, &host->controls[port_index]);
-		printf("Set %s to %f\n", symbol, host->controls[port_index]);
-		break;
-	case SLV2_CONTROL_RATE_OUTPUT:
-		slv2_instance_connect_port(host->instance, port_index, &host->controls[port_index]);
-		break;
-	case SLV2_AUDIO_RATE_INPUT:
-		host->jack_ports[port_index] = jack_port_register(host->jack_client,
-			symbol, JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
-		break;
-	case SLV2_AUDIO_RATE_OUTPUT:
-		host->jack_ports[port_index] = jack_port_register(host->jack_client,
-			symbol, JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
-		break;
-	default:
-		die("ERROR: Unknown port type, aborting messily!");
-	}
-
-	free(symbol);
-}
-
-
-/** Jack process callback. */
-int
-jack_process_cb(jack_nframes_t nframes, void* data)
-{
-	struct JackHost* host = (struct JackHost*)data;
-
-	/* Connect plugin ports directly to JACK buffers */
-	for (uint32_t i=0; i < host->num_ports; ++i)
-		if (host->jack_ports[i] != NULL)
-			slv2_instance_connect_port(host->instance, i,
-				jack_port_get_buffer(host->jack_ports[i], nframes));
-	
-	/* Run plugin for this cycle */
-	slv2_instance_run(host->instance, nframes);
-
-	return 0;
-}
-
-
-void
-list_plugins(SLV2List list)
-{
-	for (size_t i=0; i < slv2_list_get_length(list); ++i) {
-		const SLV2Plugin* const p = slv2_list_get_plugin_by_index(list, i);
-		printf("%s\n", slv2_plugin_get_uri(p));
-	}
-}