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Diffstat (limited to 'examples/hosts/test_host.c')
| -rw-r--r-- | examples/hosts/test_host.c | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/examples/hosts/test_host.c b/examples/hosts/test_host.c new file mode 100644 index 0000000..3ec8d86 --- /dev/null +++ b/examples/hosts/test_host.c @@ -0,0 +1,231 @@ +/* LibSLV2 Test 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. + */ + +#define _XOPEN_SOURCE 500 + +#include <rasqal.h> +#include <string.h> +#include <stdlib.h> +#include <assert.h> + +#include <slv2/types.h> +#include <slv2/plugin.h> +#include <slv2/plugininstance.h> +#include <slv2/pluginlist.h> +#include <slv2/port.h> + + +void +create_control_input() +{ + printf("Control Input\n"); +} + + +void +create_control_output() +{ + printf("Control Output\n"); +} + + +void +create_audio_input() +{ + printf("Audio Input\n"); +} + + +void +create_audio_output() +{ + printf("Audio Output\n"); +} + + +void +create_port(SLV2Plugin* plugin, + SLV2Instance* instance, + unsigned long port_index) +{ + enum SLV2PortClass class = slv2_port_get_class(plugin, port_index); + + switch (class) { + case SLV2_CONTROL_RATE_INPUT: + create_control_input(port_index); + break; + case SLV2_CONTROL_RATE_OUTPUT: + create_control_output(port_index); + break; + case SLV2_AUDIO_RATE_INPUT: + + create_audio_input(port_index); + break; + case SLV2_AUDIO_RATE_OUTPUT: + create_audio_output(port_index); + break; + default: + printf("Unknown port type, ignored.\n"); + } + //printf("Port %ld class: %d\n", i, slv2_port_get_class(p, i)); +} + + +int +main() +{ + //const char* path = "foo"; + + const char* path = "/home/dave/code/libslv2/examples/plugins"; + + SLV2List plugins = slv2_list_new(); + slv2_list_load_path(plugins, path); + + const char* plugin_uri = "http://plugin.org.uk/swh-plugins/amp"; + printf("URI:\t%s\n", plugin_uri); + + const SLV2Plugin* p = slv2_list_get_plugin_by_uri(plugins, plugin_uri); + if (p) { + /* Get the plugin's name */ + unsigned char* name = slv2_plugin_get_name(p); + printf("Name:\t%s\n", name); + free(name); + + unsigned long num_ports = slv2_plugin_get_num_ports(p); + //printf("Number of ports: %ld\n", num_ports); + + for (unsigned long i=0; i < num_ports; ++i) { + enum SLV2PortClass class = slv2_port_get_class(p, i); + + switch (class) { + case SLV2_CONTROL_RATE_INPUT: + create_control_input(i); + break; + case SLV2_CONTROL_RATE_OUTPUT: + create_control_output(i); + break; + case SLV2_AUDIO_RATE_INPUT: + create_audio_input(i); + break; + case SLV2_AUDIO_RATE_OUTPUT: + create_audio_output(i); + break; + default: + printf("Unknown port type, ignored.\n"); + } + //printf("Port %ld class: %d\n", i, slv2_port_get_class(p, i)); + + + } + + SLV2Property prop; + for (unsigned long i=0; i < num_ports; ++i) { + const char* property = "a"; + prop = slv2_port_get_property(p, i, property); + if (prop) + printf("Port %ld %s = %s\n", i, property, prop->values[0]); + else + printf("No port %ld %s.\n", i, property); + free(prop); + } + printf("\n"); + + SLV2Instance* i = slv2_plugin_instantiate(p, 48000, NULL); + if (i) { + printf("Succesfully instantiated plugin.\n"); + + float gain = 2.0f; + float input = 0.25f; + float output = 0.0f; + slv2_instance_connect_port(i, 0, &gain); + slv2_instance_connect_port(i, 1, &input); + slv2_instance_connect_port(i, 2, &output); + + slv2_instance_activate(i); + slv2_instance_run(i, 1); + slv2_instance_deactivate(i); + + printf("Gain: %f, Input: %f => Output: %f\n", gain, input, output); + slv2_instance_free(i); + } + } + + slv2_list_free(plugins); + +#if 0 + /* Display all plugins found in path */ + if (plugins) + printf("Plugins found: %ld\n", slv2_list_get_size(plugins)); + else + printf("No plugins found in %s\n", path); + + for (unsigned long i=0; 1; ++i) { + const SLV2Plugin* p = + slv2_list_get_plugin_by_index(plugins, i); + + if (!p) + break; + else + printf("\t%s\n", slv2_plugin_get_uri(p)); + } +#endif + +#if 0 + const uchar* bundle_url = (const uchar*)"file:/home/dave/code/ladspa2/ladspa2_sdk/examples/plugins/Amp-swh.ladspa2/"; + LV2Bundle* b = slv2_bundle_load(bundle_url); + + if (b != NULL) { + printf("Loaded bundle %s\n", slv2_bundle_get_url(b)); + + for (unsigned long i=0; i < slv2_bundle_get_num_plugins(b); ++i) { + const SLV2Plugin* p = slv2_bundle_get_plugin_by_index(b, i); + //printf("Plugin: %s\n", p->plugin_uri); + //printf("Lib: %s\n", p->lib_url); + //printf("Data: %s\n", p->data_url); + + printf("\n"); + const uchar* property = (uchar*)"doap:name"; + printf("%s\t%s\n", slv2_plugin_get_uri(p), property); + struct SLV2Property* result = slv2_plugin_get_property(p, property); + + if (result) { + for (int i=0; i < result->num_values; ++i) + printf("\t%s\n", result->values[i]); + } else { + printf("No results.\n"); + } + printf("\n"); + + /* Instantiate plugin */ + SLV2PluginInstance* instance = slv2_plugin_instantiate( + p, 48000, NULL); + if (instance != NULL) { + printf("Successfully instantiated %s\n", slv2_plugin_get_uri(p)); + slv2_plugin_instance_free(instance); + } + + } + + } else { + printf("Failed to load bundle %s\n", bundle_url); + } +#endif + + return 0; +} + |