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-rw-r--r--src/jalv_console.c282
1 files changed, 282 insertions, 0 deletions
diff --git a/src/jalv_console.c b/src/jalv_console.c
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--- /dev/null
+++ b/src/jalv_console.c
@@ -0,0 +1,282 @@
+/*
+ Copyright 2007-2016 David Robillard <http://drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#define _POSIX_C_SOURCE 200809L
+#define _XOPEN_SOURCE 600
+#define _BSD_SOURCE 1
+#define _DEFAULT_SOURCE 1
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "jalv_config.h"
+#include "jalv_internal.h"
+
+#include "lv2/lv2plug.in/ns/extensions/ui/ui.h"
+
+static int
+print_usage(const char* name, bool error)
+{
+ FILE* const os = error ? stderr : stdout;
+ fprintf(os, "Usage: %s [OPTION...] PLUGIN_URI\n", name);
+ fprintf(os, "Run an LV2 plugin as a Jack application.\n");
+ fprintf(os, " -b SIZE Buffer size for plugin <=> UI communication\n");
+ fprintf(os, " -c SYM=VAL Set control value (e.g. \"vol=1.4\")\n");
+ fprintf(os, " -d Dump plugin <=> UI communication\n");
+ fprintf(os, " -h Display this help and exit\n");
+ fprintf(os, " -l DIR Load state from save directory\n");
+ fprintf(os, " -n NAME JACK client name\n");
+ fprintf(os, " -p Print control output changes to stdout\n");
+ fprintf(os, " -s Show plugin UI if possible\n");
+ fprintf(os, " -t Print trace messages from plugin\n");
+ fprintf(os, " -u UUID UUID for Jack session restoration\n");
+ fprintf(os, " -x Exact JACK client name (exit if taken)\n");
+ return error ? 1 : 0;
+}
+
+void
+jalv_ui_port_event(ZIX_UNUSED Jalv* jalv,
+ ZIX_UNUSED uint32_t port_index,
+ ZIX_UNUSED uint32_t buffer_size,
+ ZIX_UNUSED uint32_t protocol,
+ ZIX_UNUSED const void* buffer)
+{
+}
+
+int
+jalv_init(int* argc, char*** argv, JalvOptions* opts)
+{
+ int n_controls = 0;
+ int a = 1;
+ for (; a < *argc && (*argv)[a][0] == '-'; ++a) {
+ if ((*argv)[a][1] == 'h') {
+ return print_usage((*argv)[0], true);
+ } else if ((*argv)[a][1] == 's') {
+ opts->show_ui = true;
+ } else if ((*argv)[a][1] == 'p') {
+ opts->print_controls = true;
+ } else if ((*argv)[a][1] == 'u') {
+ if (++a == *argc) {
+ fprintf(stderr, "Missing argument for -u\n");
+ return 1;
+ }
+ opts->uuid = jalv_strdup((*argv)[a]);
+ } else if ((*argv)[a][1] == 'l') {
+ if (++a == *argc) {
+ fprintf(stderr, "Missing argument for -l\n");
+ return 1;
+ }
+ opts->load = jalv_strdup((*argv)[a]);
+ } else if ((*argv)[a][1] == 'b') {
+ if (++a == *argc) {
+ fprintf(stderr, "Missing argument for -b\n");
+ return 1;
+ }
+ opts->buffer_size = atoi((*argv)[a]);
+ } else if ((*argv)[a][1] == 'c') {
+ if (++a == *argc) {
+ fprintf(stderr, "Missing argument for -c\n");
+ return 1;
+ }
+ opts->controls = (char**)realloc(
+ opts->controls, (++n_controls + 1) * sizeof(char*));
+ opts->controls[n_controls - 1] = (*argv)[a];
+ opts->controls[n_controls] = NULL;
+ } else if ((*argv)[a][1] == 'i') {
+ opts->non_interactive = true;
+ } else if ((*argv)[a][1] == 'd') {
+ opts->dump = true;
+ } else if ((*argv)[a][1] == 't') {
+ opts->trace = true;
+ } else if ((*argv)[a][1] == 'n') {
+ if (++a == *argc) {
+ fprintf(stderr, "Missing argument for -n\n");
+ return 1;
+ }
+ free(opts->name);
+ opts->name = jalv_strdup((*argv)[a]);
+ } else if ((*argv)[a][1] == 'x') {
+ opts->name_exact = 1;
+ } else {
+ fprintf(stderr, "Unknown option %s\n", (*argv)[a]);
+ return print_usage((*argv)[0], true);
+ }
+ }
+
+ return 0;
+}
+
+const char*
+jalv_native_ui_type(void)
+{
+ return NULL;
+}
+
+static void
+jalv_print_controls(Jalv* jalv, bool writable, bool readable)
+{
+ for (size_t i = 0; i < jalv->controls.n_controls; ++i) {
+ ControlID* const control = jalv->controls.controls[i];
+ if ((control->is_writable && writable) ||
+ (control->is_readable && readable)) {
+ struct Port* const port = &jalv->ports[control->index];
+ printf("%s = %f\n",
+ lilv_node_as_string(control->symbol),
+ port->control);
+ }
+ }
+}
+
+static int
+jalv_print_preset(Jalv* jalv,
+ const LilvNode* node,
+ const LilvNode* title,
+ void* data)
+{
+ printf("%s (%s)\n", lilv_node_as_string(node), lilv_node_as_string(title));
+ return 0;
+}
+
+static void
+jalv_process_command(Jalv* jalv, const char* cmd)
+{
+ char sym[64];
+ uint32_t index;
+ float value;
+ if (!strncmp(cmd, "help", 4)) {
+ fprintf(stderr,
+ "Commands:\n"
+ " help Display this help message\n"
+ " controls Print settable control values\n"
+ " monitors Print output control values\n"
+ " presets Print available presets\n"
+ " preset URI Set preset\n"
+ " set INDEX VALUE Set control value by port index\n"
+ " set SYMBOL VALUE Set control value by symbol\n"
+ " SYMBOL = VALUE Set control value by symbol\n");
+ } else if (strcmp(cmd, "presets\n") == 0) {
+ jalv_unload_presets(jalv);
+ jalv_load_presets(jalv, jalv_print_preset, NULL);
+ } else if (sscanf(cmd, "preset %[a-zA-Z0-9_:/-.#]\n", sym) == 1) {
+ LilvNode* preset = lilv_new_uri(jalv->world, sym);
+ jalv_apply_preset(jalv, preset);
+ lilv_node_free(preset);
+ jalv_print_controls(jalv, true, false);
+ } else if (strcmp(cmd, "controls\n") == 0) {
+ jalv_print_controls(jalv, true, false);
+ } else if (strcmp(cmd, "monitors\n") == 0) {
+ jalv_print_controls(jalv, false, true);
+ } else if (sscanf(cmd, "set %u %f", &index, &value) == 2) {
+ if (index < jalv->num_ports) {
+ jalv->ports[index].control = value;
+ jalv_print_control(jalv, &jalv->ports[index], value);
+ } else {
+ fprintf(stderr, "error: port index out of range\n");
+ }
+ } else if (sscanf(cmd, "set %[a-zA-Z0-9_] %f", sym, &value) == 2 ||
+ sscanf(cmd, "%[a-zA-Z0-9_] = %f", sym, &value) == 2) {
+ struct Port* port = NULL;
+ for (uint32_t i = 0; i < jalv->num_ports; ++i) {
+ struct Port* p = &jalv->ports[i];
+ const LilvNode* s = lilv_port_get_symbol(jalv->plugin, p->lilv_port);
+ if (!strcmp(lilv_node_as_string(s), sym)) {
+ port = p;
+ break;
+ }
+ }
+ if (port) {
+ port->control = value;
+ jalv_print_control(jalv, port, value);
+ } else {
+ fprintf(stderr, "error: no control named `%s'\n", sym);
+ }
+ } else {
+ fprintf(stderr, "error: invalid command (try `help')\n");
+ }
+}
+
+bool
+jalv_discover_ui(Jalv* jalv)
+{
+ return jalv->opts.show_ui;
+}
+
+static bool
+jalv_run_custom_ui(Jalv* jalv)
+{
+#ifdef HAVE_SUIL
+ const LV2UI_Idle_Interface* idle_iface = NULL;
+ const LV2UI_Show_Interface* show_iface = NULL;
+ if (jalv->ui && jalv->opts.show_ui) {
+ jalv_ui_instantiate(jalv, jalv_native_ui_type(), NULL);
+ idle_iface = (const LV2UI_Idle_Interface*)
+ suil_instance_extension_data(jalv->ui_instance, LV2_UI__idleInterface);
+ show_iface = (const LV2UI_Show_Interface*)
+ suil_instance_extension_data(jalv->ui_instance, LV2_UI__showInterface);
+ }
+
+ if (show_iface && idle_iface) {
+ show_iface->show(suil_instance_get_handle(jalv->ui_instance));
+
+ // Drive idle interface until interrupted
+ while (!zix_sem_try_wait(&jalv->done)) {
+ jalv_update(jalv);
+ if (idle_iface->idle(suil_instance_get_handle(jalv->ui_instance))) {
+ break;
+ }
+ usleep(33333);
+ }
+
+ show_iface->hide(suil_instance_get_handle(jalv->ui_instance));
+ return true;
+ }
+#endif
+
+ return false;
+}
+
+int
+jalv_open_ui(Jalv* jalv)
+{
+ if (!jalv_run_custom_ui(jalv) && !jalv->opts.non_interactive) {
+ // Primitive command prompt for setting control values
+ while (!zix_sem_try_wait(&jalv->done)) {
+ char line[128];
+ printf("> ");
+ if (fgets(line, sizeof(line), stdin)) {
+ jalv_process_command(jalv, line);
+ } else {
+ break;
+ }
+ }
+ } else {
+ zix_sem_wait(&jalv->done);
+ }
+
+ // Caller waits on the done sem, so increment it again to exit
+ zix_sem_post(&jalv->done);
+
+ return 0;
+}
+
+int
+jalv_close_ui(Jalv* jalv)
+{
+ zix_sem_post(&jalv->done);
+ return 0;
+}
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