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feat: add fzf-based file/plugin/port selection and update build system

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This commit is contained in:
Loic Coenen
2026-05-19 17:04:15 +00:00
parent e79c2ac116
commit 4bdb4c8c5d
10 changed files with 281 additions and 9 deletions
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25
client/makefile
View File

@@ -1,5 +1,5 @@
CC = gcc
CFLAGS = -Wall -Wextra -Wpedantic -std=c11 -Isrc
CFLAGS = -Wall -Wextra -Wpedantic -std=gnu11 -Isrc -I../engine/src
CARLA_INC = -I/usr/include/carla -I/usr/include/carla/includes
CARLA_LIB = -L/usr/lib/carla -Wl,-rpath,/usr/lib/carla -lcarla_standalone2
@@ -22,20 +22,20 @@ all: looper-client test_status_parse
looper-client: src/main.c src/tui.c $(PLUGINS_OBJ) $(CARLA_OBJ) $(CLIENT_CMD_OBJ) $(SCRIPT_OBJ) $(LOG_OBJ)
$(CC) $(CFLAGS) $(CARLA_INC) -o $@ $^ $(CARLA_LIB) -ljack -lncurses
test_status_parse: tests/test_status_parse.c $(PLUGINS_OBJ) $(CARLA_OBJ) $(CLIENT_CMD_OBJ)
$(CC) $(CFLAGS) $(CARLA_INC) -o test_status_parse tests/test_status_parse.c src/tui.c $(PLUGINS_OBJ) $(CARLA_OBJ) $(CLIENT_CMD_OBJ) $(CARLA_LIB) -ljack -lncurses
test_status_parse: tests/test_status_parse.c $(PLUGINS_OBJ) $(CARLA_OBJ) $(CLIENT_CMD_OBJ) $(SCRIPT_OBJ) $(LOG_OBJ)
$(CC) $(CFLAGS) $(CARLA_INC) -o test_status_parse tests/test_status_parse.c src/tui.c $(PLUGINS_OBJ) $(CARLA_OBJ) $(CLIENT_CMD_OBJ) $(SCRIPT_OBJ) $(LOG_OBJ) $(CARLA_LIB) -ljack -lncurses
# --- Plugin stubs (now real) ---
$(PLUGINS_OBJ): src/plugins.c src/plugins.h
$(CC) $(CFLAGS) $(CARLA_INC) -c -o $@ $<
$(CARLA_OBJ): src/carla_host.c src/carla_host.h
$(CC) -Wall -Wextra -std=c11 -Isrc $(CARLA_INC) -c -o $@ $<
$(CC) -Wall -Wextra -std=gnu11 -Isrc -I../engine/src $(CARLA_INC) -c -o $@ $<
CARLA_TEST_OBJ = src/carla_host_test.o
$(CARLA_TEST_OBJ): src/carla_host.c src/carla_host.h
$(CC) -Wall -Wextra -std=c11 -Isrc $(CARLA_INC) -DTESTING -c -o $@ $<
$(CC) -Wall -Wextra -std=gnu11 -Isrc -I../engine/src $(CARLA_INC) -DTESTING -c -o $@ $<
$(CLIENT_CMD_OBJ): src/client_cmd.c src/client_cmd.h
$(CC) $(CFLAGS) $(CARLA_INC) -c -o $@ $<
@@ -51,8 +51,17 @@ TEST_SCRIPT_OBJ = tests/test_script.o
$(TEST_SCRIPT_OBJ): tests/test_script.c src/script.h
$(CC) $(CFLAGS) -c -o $@ $<
$(TEST_SCRIPT_BIN): $(TEST_SCRIPT_OBJ) $(SCRIPT_OBJ)
$(CC) $(CFLAGS) -o $@ $^
TEST_TUI_STUB_OBJ = tests/test_tui_stub.o
tests/test_tui_stub.c:
mkdir -p tests
@printf '%s\n' '#include "tui.h"' '' 'char *tui_fzf_select(const char *const items[], size_t count, const char *prompt){(void)items;(void)count;(void)prompt;return NULL;}' '' 'void tui_cleanup(void){}' > $@
$(TEST_TUI_STUB_OBJ): tests/test_tui_stub.c
$(CC) $(CFLAGS) -c -o $@ $<
$(TEST_SCRIPT_BIN): $(TEST_SCRIPT_OBJ) $(SCRIPT_OBJ) $(PLUGINS_OBJ) $(CLIENT_CMD_OBJ) $(CARLA_OBJ) $(TEST_TUI_STUB_OBJ)
$(CC) $(CFLAGS) $(CARLA_INC) -o $@ $^ $(CARLA_LIB) -ljack -lncurses
$(LOG_OBJ): src/log.c
$(CC) $(CFLAGS) -c -o $@ $<
@@ -101,7 +110,7 @@ TEST_CARLA_MOCK_BIN = test_carla_host_mock
CARLA_MOCK_OBJ = src/carla_host_mock.o
$(CARLA_MOCK_OBJ): src/carla_host.c src/carla_host.h
$(CC) -Wall -Wextra -std=c11 -Isrc $(CARLA_INC) -DTESTING -DMOCK_JACK -c -o $@ $<
$(CC) -Wall -Wextra -std=gnu11 -Isrc -I../engine/src $(CARLA_INC) -DTESTING -DMOCK_JACK -c -o $@ $<
$(TEST_CARLA_MOCK_BIN): tests/test_carla_host_mock.c $(CARLA_MOCK_OBJ)
$(CC) $(CFLAGS) $(CARLA_INC) -DTESTING -DMOCK_JACK -o $@ $^ $(CARLA_LIB) -ljack

44
client/src/carla_host.c
View File

@@ -1,3 +1,5 @@
#define _GNU_SOURCE
#include <stdlib.h>
#include <CarlaHost.h>
#include <CarlaBackend.h>
#include <string.h>
@@ -206,6 +208,48 @@ int carla_disconnect_plugin(int id) {
return any ? 0 : -1; // return -1 if no connections were found (harmless)
}
#ifdef MOCK_JACK
/* Mock: return a few fake port names */
int carla_get_ports(const char *type, char ***ports, int *count) {
(void)type;
static const char *fake[] = {"system:capture_1", "system:capture_2", "system:playback_1", "system:playback_2"};
*count = 4;
*ports = malloc(*count * sizeof(char*));
if (!*ports) { *count = 0; return -1; }
for (int i = 0; i < *count; i++)
(*ports)[i] = strdup(fake[i]);
return 0;
}
#else
#include <jack/jack.h>
int carla_get_ports(const char *type, char ***ports, int *count) {
(void)type;
if (!jack_client) {
*ports = NULL;
*count = 0;
return -1;
}
const char **jports = jack_get_ports(jack_client, NULL, NULL, 0);
if (!jports) {
*ports = NULL;
*count = 0;
return -1;
}
int n = 0;
while (jports[n]) n++;
*count = n;
*ports = malloc(n * sizeof(char*));
if (!*ports) {
jack_free(jports);
return -1;
}
for (int i = 0; i < n; i++)
(*ports)[i] = strdup(jports[i]);
jack_free(jports);
return 0;
}
#endif
#ifdef TESTING
int carla_test_connection_count(void) {
return conn_count;

2
client/src/log.c
View File

@@ -1 +1 @@
#include "../engine/src/log.c"
#include "../../engine/src/log.c"

100
client/src/script.c
View File

@@ -4,10 +4,16 @@
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
/* Forward declarations for functions used from carla_host.c */
int carla_load(const char *binary, const char *plugin_id, int *out_id);
int carla_get_ports(const char *type, char ***ports, int *count);
#include "tui.h"
#include <glob.h>
#define MAX_NOTES 128
static char *note_actions[MAX_NOTES] = {0};
char g_selected_port[256] = {0};
int script_load(const char *path) {
FILE *fp = fopen(path, "r");
@@ -45,6 +51,100 @@ int script_load(const char *path) {
return 0;
}
int script_handle_fzf_command(const char *type) {
if (!type) return -1;
if (strcmp(type, "sample") == 0) {
// Get sample directory from env or home
const char *dir = getenv("LOOPER_SAMPLE_DIR");
if (!dir) dir = getenv("HOME");
if (!dir) dir = ".";
char pattern[1024];
snprintf(pattern, sizeof(pattern), "%s/**/*.wav", dir);
glob_t g;
if (glob(pattern, GLOB_TILDE, NULL, &g) != 0) {
// Try without wildcard
snprintf(pattern, sizeof(pattern), "%s/*.wav", dir);
if (glob(pattern, GLOB_TILDE, NULL, &g) != 0)
return -1;
}
const char **items = malloc((g.gl_pathc + 1) * sizeof(char*));
if (!items) { globfree(&g); return -1; }
for (size_t i = 0; i < g.gl_pathc; i++)
items[i] = g.gl_pathv[i];
items[g.gl_pathc] = NULL;
char *selected = tui_fzf_select(items, g.gl_pathc, "Load sample: ");
if (selected) {
int out_id;
carla_load(selected, "", &out_id);
free(selected);
}
free(items);
globfree(&g);
return 0;
}
if (strcmp(type, "plugin") == 0) {
// List .so files in common paths
const char *dirs[] = {
getenv("VST_PATH") ? getenv("VST_PATH") : "/usr/lib/vst",
getenv("HOME"),
NULL
};
char **paths = NULL;
size_t count = 0;
for (int d = 0; dirs[d]; d++) {
char pattern[1024];
snprintf(pattern, sizeof(pattern), "%s/**/*.so", dirs[d]);
glob_t g;
if (glob(pattern, GLOB_TILDE, NULL, &g) == 0) {
for (size_t i = 0; i < g.gl_pathc; i++) {
paths = realloc(paths, (count+1) * sizeof(char*));
paths[count] = strdup(g.gl_pathv[i]);
count++;
}
globfree(&g);
}
}
if (count == 0) return -1;
const char **items = malloc(count * sizeof(char*));
for (size_t i = 0; i < count; i++) items[i] = paths[i];
char *selected = tui_fzf_select(items, count, "Load plugin: ");
if (selected) {
int out_id;
carla_load(selected, "", &out_id);
free(selected);
}
for (size_t i = 0; i < count; i++) free(paths[i]);
free(paths);
free(items);
return 0;
}
if (strcmp(type, "from") == 0 || strcmp(type, "to") == 0) {
char **ports;
int count;
// For "to" we need input ports (where output will go), for "from" we need output ports
if (carla_get_ports("audio", &ports, &count) != 0)
return -1;
char *selected = tui_fzf_select((const char**)ports, count,
(strcmp(type,"to")==0) ? "Select plugin input port: " : "Select looper output port: ");
if (selected) {
strncpy(g_selected_port, selected, sizeof(g_selected_port)-1);
g_selected_port[sizeof(g_selected_port)-1] = '\0';
free(selected);
}
for (int i = 0; i < count; i++) free(ports[i]);
free(ports);
return (selected ? 0 : -1);
}
return -1;
}
void script_cleanup(void) {
for (int i = 0; i < MAX_NOTES; i++) {
free(note_actions[i]);

2
client/src/script.h
View File

@@ -4,5 +4,7 @@
int script_load(const char *path);
void script_handle_note(int note);
void script_cleanup(void);
int script_handle_fzf_command(const char *type);
extern char g_selected_port[256];
#endif

76
client/src/tui.c
View File

@@ -4,6 +4,7 @@
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <ctype.h>
#include <dirent.h>
@@ -350,6 +351,18 @@ void tui_run(void) {
rack_mode = !rack_mode;
rack_selected = 0;
break;
case KEY_F(5):
script_handle_fzf_command("sample");
draw_grid();
break;
case KEY_F(6):
script_handle_fzf_command("plugin");
draw_grid();
break;
case KEY_F(7):
script_handle_fzf_command("from");
draw_grid();
break;
case 27: case 'Q':
if (rack_mode) {
rack_mode = false;
@@ -396,6 +409,69 @@ void tui_run(void) {
}
}
char* tui_fzf_select(const char *const items[], size_t count, const char *prompt) {
if (!items || count == 0) return NULL;
// Save ncurses state
def_prog_mode();
endwin();
// Build a temporary file with the items list
char tmpfile[] = "/tmp/tui_fzf_XXXXXX";
int fd = mkstemp(tmpfile);
if (fd == -1) {
reset_prog_mode();
refresh();
return NULL;
}
FILE *tmp = fdopen(fd, "w");
if (!tmp) {
close(fd);
unlink(tmpfile);
reset_prog_mode();
refresh();
return NULL;
}
for (size_t i = 0; i < count; i++) {
if (items[i])
fprintf(tmp, "%s\n", items[i]);
}
fclose(tmp);
// Build fzf command reading from the temporary file
char cmd[8192];
snprintf(cmd, sizeof(cmd),
"fzf --prompt='%s' < %s",
prompt ? prompt : "Select: ",
tmpfile);
FILE *result = popen(cmd, "r");
if (!result) {
unlink(tmpfile);
reset_prog_mode();
refresh();
return NULL;
}
char selected[4096] = {0};
if (fgets(selected, sizeof(selected), result) != NULL) {
size_t len = strlen(selected);
if (len > 0 && selected[len-1] == '\n')
selected[len-1] = '\0';
}
pclose(result);
unlink(tmpfile);
// Restore ncurses
reset_prog_mode();
refresh();
if (selected[0] == '\0')
return NULL;
return strdup(selected);
}
void tui_cleanup(void) {
if (yank_buffer.clip_indices) free(yank_buffer.clip_indices);
/* free script note allocations */

3
client/src/tui.h
View File

@@ -1,9 +1,12 @@
#ifndef TUI_H
#define TUI_H
#include <stddef.h>
void tui_init(void);
void tui_run(void);
void tui_cleanup(void);
int send_command(const char *cmd);
char* tui_fzf_select(const char *const items[], size_t count, const char *prompt);
#endif

5
client/tests/test_tui_stub.c Normal file
View File

@@ -0,0 +1,5 @@
#include "tui.h"
char *tui_fzf_select(const char *const items[], size_t count, const char *prompt){(void)items;(void)count;(void)prompt;return NULL;}
void tui_cleanup(void){}