1174 lines
40 KiB
C
1174 lines
40 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/wait.h>
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#include <sys/types.h>
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#include <string.h>
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#include <stdarg.h>
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#include <fcntl.h>
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#include <jack/jack.h>
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#include <jack/midiport.h>
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#include <math.h>
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#include <time.h>
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/* static variables for passthrough test */
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static jack_port_t *passthrough_output_port = NULL;
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static jack_port_t *passthrough_input_port = NULL;
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static float passthrough_phase = 0.0f;
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static float passthrough_freq = 440.0f;
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static int passthrough_sample_rate = 0;
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static long passthrough_total_samples = 0;
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static double passthrough_sum_sq = 0.0;
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static volatile int passthrough_done = 0;
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static volatile int beep_remaining = 0;
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static volatile int bursts = 0;
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static volatile int prev_above = 0;
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static int continuous_sine = 0;
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/* variables for MIDI injection (used by send_jack_note_on) */
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static volatile int midi_inject_pending = 0;
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static jack_port_t *midi_inject_port = NULL;
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static jack_client_t *midi_inject_client = NULL;
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static unsigned char midi_inject_note = 0;
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static unsigned char midi_inject_velocity = 0;
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static void safe_usleep(unsigned int usec) {
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struct timespec ts;
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ts.tv_sec = usec / 1000000;
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ts.tv_nsec = (usec % 1000000) * 1000L;
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nanosleep(&ts, NULL);
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}
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static int midi_inject_process(jack_nframes_t nframes, void *arg) {
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(void)arg;
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if (!midi_inject_port) return 0;
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void *port_buf = jack_port_get_buffer(midi_inject_port, nframes);
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if (!port_buf) return 0;
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jack_midi_clear_buffer(port_buf);
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if (!midi_inject_pending) return 0;
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jack_midi_data_t *buf = jack_midi_event_reserve(port_buf, 0, 3);
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if (!buf) return 0;
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buf[0] = 0x90;
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buf[1] = midi_inject_note;
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buf[2] = midi_inject_velocity;
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midi_inject_pending = 0;
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return 0;
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}
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/* Helper: initialise the persistent MIDI client (open and connect) */
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static int midi_inject_init(const char *target_port) {
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if (midi_inject_client) return 0; /* already initialised */
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jack_status_t st;
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midi_inject_client = jack_client_open("midi_inject_persistent", JackNoStartServer, &st);
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if (!midi_inject_client) return -1;
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midi_inject_port = jack_port_register(midi_inject_client, "out",
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JACK_DEFAULT_MIDI_TYPE,
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JackPortIsOutput, 0);
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if (!midi_inject_port) return -1;
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jack_set_process_callback(midi_inject_client, midi_inject_process, NULL);
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if (jack_activate(midi_inject_client) != 0) return -1;
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char src[64];
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snprintf(src, sizeof(src), "midi_inject_persistent:out");
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if (jack_connect(midi_inject_client, src, target_port) != 0) return -1;
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return 0;
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}
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/* Helper: close the persistent MIDI client */
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static void midi_inject_close(void) {
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if (midi_inject_client) {
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jack_deactivate(midi_inject_client);
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jack_client_close(midi_inject_client);
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midi_inject_client = NULL;
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midi_inject_port = NULL;
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}
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}
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/* The test code uses this callback in two ways:
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- For the audio passthrough test (existing function) it still works.
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- For the loop test we need a version that respects the static variables
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beep_remaining and bursts (declared in test_looper_looping).
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We change the existing function to also handle those globals. */
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static int passthrough_process(jack_nframes_t nframes, void *arg) {
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(void)arg;
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jack_default_audio_sample_t *out =
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(jack_default_audio_sample_t *)jack_port_get_buffer(passthrough_output_port, nframes);
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const jack_default_audio_sample_t *in =
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(const jack_default_audio_sample_t *)jack_port_get_buffer(passthrough_input_port, nframes);
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if (!out || !in) return 0;
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float *f_out = (float *)out;
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const float *f_in = (const float *)in;
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for (jack_nframes_t i = 0; i < nframes; i++) {
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/* generate beep while beep_remaining > 0 or continuous sine */
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float out_val;
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if (continuous_sine || beep_remaining > 0) {
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out_val = sinf(passthrough_phase);
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passthrough_phase += 2.0f * (float)M_PI * passthrough_freq / passthrough_sample_rate;
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if (passthrough_phase > 2.0f * M_PI)
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passthrough_phase -= 2.0f * M_PI;
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if (beep_remaining > 0) beep_remaining--;
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} else {
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out_val = 0.0f;
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}
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f_out[i] = out_val;
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/* detect bursts on the input (looper output) */
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float sample = f_in[i];
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int above = (fabsf(sample) > 0.05f);
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if (above && !prev_above) {
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bursts++;
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}
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prev_above = above;
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passthrough_sum_sq += (double)f_in[i] * (double)f_in[i];
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passthrough_total_samples++;
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}
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if (passthrough_total_samples >= passthrough_sample_rate * 2) {
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passthrough_done = 1;
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}
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return 0;
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}
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/*
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* Integration test for the JACK looper.
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*
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* Uses SIGUSR1 to request the looper to report its current state and exit.
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* Verifies that MIDI note‑on and clock messages produce correct state transitions.
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*/
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#define STATE_IDLE 0
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#define STATE_RECORD 1
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#define STATE_LOOPING 2
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#define STATE_PAUSED 3
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#define WAIT_SECONDS 1
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/*
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* Start a fresh instance of the looper, wait for JACK ports to appear,
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* return its PID, or -1 on failure.
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*/
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static pid_t start_looper(void) {
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pid_t pid = fork();
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if (pid < 0) {
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perror("fork");
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return -1;
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}
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if (pid == 0) {
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/* child: suppress stderr messages */
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close(2);
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open("/dev/null", O_WRONLY);
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execl("./looper", "looper", NULL);
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perror("execl");
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_exit(1);
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}
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printf("Started looper (pid %d)\n", (int)pid);
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sleep(3); /* wait for JACK ports to register */
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return pid;
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}
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static int test_audio_pass_through(void) {
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printf("Test: audio pass‑through (connectivity)\n");
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pid_t pid = start_looper();
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if (pid < 0) return 1;
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/* ensure fresh MIDI connection for this test */
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midi_inject_close();
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jack_client_t *client;
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jack_status_t status;
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client = jack_client_open("test_passthrough", JackNoStartServer, &status);
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if (client == NULL) {
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fprintf(stderr, " SKIP: cannot open JACK client (server not running?)\n");
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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return 1;
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}
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jack_port_t *output_port = jack_port_register(client, "output",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput, 0);
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jack_port_t *input_port = jack_port_register(client, "input",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsInput, 0);
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if (!output_port || !input_port) {
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fprintf(stderr, " FAIL: could not register ports\n");
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jack_client_close(client);
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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return 1;
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}
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safe_usleep(200000);
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const char *looper_input = "looper:input";
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const char *looper_output = "looper:output";
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char my_output[64], my_input[64];
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snprintf(my_output, sizeof(my_output), "test_passthrough:output");
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snprintf(my_input, sizeof(my_input), "test_passthrough:input");
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if (jack_connect(client, my_output, looper_input) != 0) {
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fprintf(stderr, " FAIL: cannot connect test_passthrough:output -> looper:input\n");
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jack_client_close(client);
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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return 1;
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}
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if (jack_connect(client, looper_output, my_input) != 0) {
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fprintf(stderr, " FAIL: cannot connect looper:output -> test_passthrough:input\n");
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jack_client_close(client);
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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return 1;
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}
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passthrough_output_port = output_port;
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passthrough_input_port = input_port;
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passthrough_phase = 0.0f;
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passthrough_freq = 440.0f;
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passthrough_sample_rate = jack_get_sample_rate(client);
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passthrough_total_samples = 0;
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passthrough_sum_sq = 0.0;
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passthrough_done = 0;
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continuous_sine = 1; /* enable continuous tone for this test */
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beep_remaining = 0; /* not needed */
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jack_set_process_callback(client, passthrough_process, NULL);
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if (jack_activate(client) != 0) {
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fprintf(stderr, " FAIL: cannot activate client\n");
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jack_client_close(client);
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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return 1;
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}
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safe_usleep(2200000);
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int saw_input = passthrough_done;
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double rms = passthrough_total_samples > 0 ?
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sqrt(passthrough_sum_sq / passthrough_total_samples) : 0.0;
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jack_deactivate(client);
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jack_client_close(client);
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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if (!saw_input) {
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fprintf(stderr, " FAIL: looper did not produce output (no callback run?)\n");
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return 1;
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}
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if (rms < 0.001) {
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fprintf(stderr, " FAIL: looper output RMS too small (%.6f)\n", rms);
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return 1;
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}
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printf(" PASS (RMS %.6f)\n", rms);
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return 0;
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}
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/* Helper: open a transient JACK client, send a MIDI note‑on, close */
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static jack_client_t *midi_persistent_client = NULL;
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static jack_port_t *midi_persistent_port = NULL;
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static int send_jack_note_on(const char *target_port, unsigned char note, unsigned char velocity) {
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/* initialise client on first call (per‑test) */
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if (midi_inject_init(target_port) != 0) return -1;
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midi_inject_note = note;
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midi_inject_velocity = velocity;
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midi_inject_pending = 1;
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/* wait for delivery (process callback clears the flag) */
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for (int attempts = 0; attempts < 100; attempts++) {
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safe_usleep(10000);
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if (!midi_inject_pending) break;
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}
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return 0;
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}
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/* must be called after all tests */
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static void close_persistent_midi(void) {
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if (midi_persistent_client) {
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jack_deactivate(midi_persistent_client);
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jack_client_close(midi_persistent_client);
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midi_persistent_client = NULL;
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midi_persistent_port = NULL;
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}
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}
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/*
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* Full loop recording test:
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* 1. start looper
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* 2. open JACK test client (audio)
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* 3. send note‑on to move IDLE->RECORD
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* 4. generate a short 440 Hz beep (~0.1 s) while recording
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* 5. send note‑on to move RECORD->LOOPING
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* 6. monitor looper output for the beep being repeated (≥3 times)
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*/
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static int test_looper_looping(void) {
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printf("Test: loop recording and playback (expect ≥3 repetitions)\n");
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pid_t pid = start_looper();
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if (pid < 0) return 1;
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/* ensure fresh MIDI connection for this test */
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midi_inject_close();
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jack_client_t *client;
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jack_status_t status;
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client = jack_client_open("test_looping", JackNoStartServer, &status);
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if (!client) {
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kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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fprintf(stderr, " SKIP: JACK not running?\n");
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return 1;
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}
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jack_port_t *audio_out = jack_port_register(client, "out",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsOutput, 0);
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jack_port_t *audio_in = jack_port_register(client, "in",
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JACK_DEFAULT_AUDIO_TYPE,
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JackPortIsInput, 0);
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if (!audio_out || !audio_in) {
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jack_client_close(client);
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kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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return 1;
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}
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safe_usleep(200000); /* wait for ports to appear */
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/* connect test:out -> looper:input, looper:output -> test:in */
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char my_out[64], my_in[64];
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snprintf(my_out, sizeof(my_out), "test_looping:out");
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snprintf(my_in, sizeof(my_in), "test_looping:in");
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if (jack_connect(client, my_out, "looper:input") ||
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jack_connect(client, "looper:output", my_in)) {
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jack_client_close(client);
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kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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return 1;
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}
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/* first note‑on: IDLE -> RECORD */
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if (send_jack_note_on("looper:control", 1, 127) != 0) {
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jack_client_close(client);
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kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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return 1;
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}
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safe_usleep(500000); /* allow state to change (500ms) */
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int sr = jack_get_sample_rate(client);
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continuous_sine = 0; /* disable continuous tone */
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beep_remaining = (int)(0.1f * sr); /* 0.1 second beep */
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bursts = 0;
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prev_above = 0;
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passthrough_output_port = audio_out;
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passthrough_input_port = audio_in;
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passthrough_phase = 0.0f;
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passthrough_freq = 440.0f;
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passthrough_sample_rate = sr;
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passthrough_total_samples = 0;
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passthrough_sum_sq = 0.0;
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passthrough_done = 0;
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jack_set_process_callback(client, passthrough_process, NULL);
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if (jack_activate(client)) {
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jack_client_close(client);
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kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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return 1;
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}
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safe_usleep(150000); /* let beep start */
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/* ensure beep is fully captured */
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safe_usleep(800000); /* 0.8s after start of beep */
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if (send_jack_note_on("looper:control", 1, 127) != 0) {
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jack_client_close(client);
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kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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return 1;
|
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}
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|
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/* wait enough time for several loops (4 seconds to be safe) */
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safe_usleep(4000000);
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|
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jack_deactivate(client);
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jack_client_close(client);
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kill(pid, SIGTERM);
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waitpid(pid, NULL, 0);
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int got_bursts = bursts;
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printf(" detected bursts: %d\n", got_bursts);
|
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if (got_bursts < 3) {
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fprintf(stderr, " FAIL: expected ≥3 bursts, got %d\n", got_bursts);
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return 1;
|
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}
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printf(" PASS (at least 3 repetitions)\n");
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return 0;
|
||
}
|
||
|
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/* test multiple channels */
|
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static int test_multiple_channels(void) {
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printf("Test: dynamic channel creation via MIDI command\n");
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) return 1;
|
||
|
||
jack_client_t *client;
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||
jack_status_t status;
|
||
client = jack_client_open("test_multi", JackNoStartServer, &status);
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||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
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fprintf(stderr, " SKIP: no JACK\n");
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||
return 1;
|
||
}
|
||
|
||
if (send_jack_note_on("looper:control", 60, 127) != 0) {
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||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
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fprintf(stderr, " FAIL: send note 60 failed\n");
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||
return 1;
|
||
}
|
||
/* wait long enough for the looper's main loop to process the add command
|
||
(it sleeps for 1 second between checks, so 1.5 s is safe) */
|
||
safe_usleep(1500000);
|
||
|
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int found = 0;
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const char **ports = jack_get_ports(client, NULL, JACK_DEFAULT_AUDIO_TYPE, 0);
|
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if (ports) {
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for (int i = 0; ports[i]; i++) {
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if (strstr(ports[i], "looper:channel1_input")) {
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found = 1;
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break;
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}
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||
}
|
||
jack_free(ports);
|
||
}
|
||
jack_client_close(client);
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||
kill(pid, SIGTERM);
|
||
waitpid(pid, NULL, 0);
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||
|
||
if (!found) {
|
||
fprintf(stderr, " FAIL: channel1_input port not created after add command\n");
|
||
return 1;
|
||
}
|
||
printf(" PASS (channel created)\n");
|
||
return 0;
|
||
}
|
||
|
||
/* test control‑key modifier (note 64 + note 62) */
|
||
static int test_control_key_modifier(void) {
|
||
printf("Test: control‑key modifier triggers state transition via note 62\n");
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) return 1;
|
||
jack_client_t *client;
|
||
jack_status_t status;
|
||
client = jack_client_open("test_ctrl_key", JackNoStartServer, &status);
|
||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " SKIP: no JACK\n");
|
||
return 1;
|
||
}
|
||
/* connect same as in test_looper_looping but no beep generation */
|
||
jack_port_t *audio_out = jack_port_register(client, "out",
|
||
JACK_DEFAULT_AUDIO_TYPE,
|
||
JackPortIsOutput, 0);
|
||
jack_port_t *audio_in = jack_port_register(client, "in",
|
||
JACK_DEFAULT_AUDIO_TYPE,
|
||
JackPortIsInput, 0);
|
||
if (!audio_out || !audio_in) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
char my_out[64], my_in[64];
|
||
snprintf(my_out, sizeof(my_out), "test_ctrl_key:out");
|
||
snprintf(my_in, sizeof(my_in), "test_ctrl_key:in");
|
||
if (jack_connect(client, my_out, "looper:input") ||
|
||
jack_connect(client, "looper:output", my_in)) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
/* First send note 64 (control key) */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send note 64 failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
/* Now send note 62 (toggle channel 0) */
|
||
if (send_jack_note_on("looper:control", 62, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send note 62 failed\n");
|
||
return 1;
|
||
}
|
||
/* Wait for looper to enter RECORD and detect audio */
|
||
int sr = jack_get_sample_rate(client);
|
||
continuous_sine = 0;
|
||
beep_remaining = (int)(0.1f * sr); /* 0.1 second beep */
|
||
bursts = 0;
|
||
prev_above = 0;
|
||
passthrough_output_port = audio_out;
|
||
passthrough_input_port = audio_in;
|
||
passthrough_phase = 0.0f;
|
||
passthrough_freq = 440.0f;
|
||
passthrough_sample_rate = sr;
|
||
passthrough_total_samples = 0;
|
||
passthrough_sum_sq = 0.0;
|
||
passthrough_done = 0;
|
||
jack_set_process_callback(client, passthrough_process, NULL);
|
||
if (jack_activate(client)) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000); /* allow beep */
|
||
/* send note 62 again under control key to move RECORD->LOOPING */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: control key re‑send\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 62, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send note 62 for loop\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(2000000);
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM);
|
||
waitpid(pid, NULL, 0);
|
||
int got_bursts = bursts;
|
||
printf(" detected bursts: %d\n", got_bursts);
|
||
if (got_bursts < 3) {
|
||
fprintf(stderr, " FAIL: expected ≥3 bursts, got %d\n", got_bursts);
|
||
return 1;
|
||
}
|
||
printf(" PASS (control‑key modifier works)\n");
|
||
return 0;
|
||
}
|
||
|
||
/* test bind channel */
|
||
static int test_bind_channel(void) {
|
||
printf("Test: control‑key bind channel (note 0) and toggle\n");
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) return 1;
|
||
jack_client_t *client;
|
||
jack_status_t status;
|
||
client = jack_client_open("test_bind", JackNoStartServer, &status);
|
||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " SKIP: no JACK\n");
|
||
return 1;
|
||
}
|
||
jack_port_t *audio_out = jack_port_register(client, "out",
|
||
JACK_DEFAULT_AUDIO_TYPE,
|
||
JackPortIsOutput, 0);
|
||
jack_port_t *audio_in = jack_port_register(client, "in",
|
||
JACK_DEFAULT_AUDIO_TYPE,
|
||
JackPortIsInput, 0);
|
||
if (!audio_out || !audio_in) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
char my_out[64], my_in[64];
|
||
snprintf(my_out, sizeof(my_out), "test_bind:out");
|
||
snprintf(my_in, sizeof(my_in), "test_bind:in");
|
||
if (jack_connect(client, my_out, "looper:input") ||
|
||
jack_connect(client, "looper:output", my_in)) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
/* Send control key + note 0 to bind to channel 0 */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send control key failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 0, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send bind note 0 failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
/* Now toggle using control+note62 – should toggle channel 0 */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send control key again failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 62, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send toggle note 62 failed\n");
|
||
return 1;
|
||
}
|
||
/* Wait and detect bursts as before */
|
||
int sr = jack_get_sample_rate(client);
|
||
continuous_sine = 0;
|
||
beep_remaining = (int)(0.1f * sr);
|
||
bursts = 0;
|
||
prev_above = 0;
|
||
passthrough_output_port = audio_out;
|
||
passthrough_input_port = audio_in;
|
||
passthrough_phase = 0.0f;
|
||
passthrough_freq = 440.0f;
|
||
passthrough_sample_rate = sr;
|
||
passthrough_total_samples = 0;
|
||
passthrough_sum_sq = 0.0;
|
||
passthrough_done = 0;
|
||
jack_set_process_callback(client, passthrough_process, NULL);
|
||
if (jack_activate(client)) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000); /* allow beep */
|
||
/* send control+note62 again to move RECORD->LOOPING */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: control key for loop\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 62, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: toggle for loop\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(2000000);
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM);
|
||
waitpid(pid, NULL, 0);
|
||
int got_bursts = bursts;
|
||
printf(" detected bursts: %d\n", got_bursts);
|
||
if (got_bursts < 3) {
|
||
fprintf(stderr, " FAIL: expected >=3 bursts, got %d\n", got_bursts);
|
||
return 1;
|
||
}
|
||
printf(" PASS (bind and toggle)\n");
|
||
return 0;
|
||
}
|
||
|
||
/* test unbind */
|
||
static int test_bind_unbind(void) {
|
||
printf("Test: bind to channel 5, unbind, then toggle default (channel 0)\n");
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) return 1;
|
||
jack_client_t *client;
|
||
jack_status_t status;
|
||
client = jack_client_open("test_unbind", JackNoStartServer, &status);
|
||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " SKIP: no JACK\n");
|
||
return 1;
|
||
}
|
||
jack_port_t *audio_out = jack_port_register(client, "out",
|
||
JACK_DEFAULT_AUDIO_TYPE,
|
||
JackPortIsOutput, 0);
|
||
jack_port_t *audio_in = jack_port_register(client, "in",
|
||
JACK_DEFAULT_AUDIO_TYPE,
|
||
JackPortIsInput, 0);
|
||
if (!audio_out || !audio_in) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
char my_out[64], my_in[64];
|
||
snprintf(my_out, sizeof(my_out), "test_unbind:out");
|
||
snprintf(my_in, sizeof(my_in), "test_unbind:in");
|
||
if (jack_connect(client, my_out, "looper:input") ||
|
||
jack_connect(client, "looper:output", my_in)) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
/* Bind to channel 5 */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send control key failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 5, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: bind to 5 failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
/* Unbind (reset to 0) */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: control key for unbind\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 63, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send unbind note 63 failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
/* Now toggle with control+62 – should affect channel 0 */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: control key for toggle\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 62, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: toggle note 62\n");
|
||
return 1;
|
||
}
|
||
/* Wait for beep and loop */
|
||
int sr = jack_get_sample_rate(client);
|
||
continuous_sine = 0;
|
||
beep_remaining = (int)(0.1f * sr);
|
||
bursts = 0;
|
||
prev_above = 0;
|
||
passthrough_output_port = audio_out;
|
||
passthrough_input_port = audio_in;
|
||
passthrough_phase = 0.0f;
|
||
passthrough_freq = 440.0f;
|
||
passthrough_sample_rate = sr;
|
||
passthrough_total_samples = 0;
|
||
passthrough_sum_sq = 0.0;
|
||
passthrough_done = 0;
|
||
jack_set_process_callback(client, passthrough_process, NULL);
|
||
if (jack_activate(client)) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000); /* allow beep */
|
||
/* second control+62 -> loop */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: control key for loop\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 62, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: toggle for loop\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(2000000);
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM);
|
||
waitpid(pid, NULL, 0);
|
||
int got_bursts = bursts;
|
||
printf(" detected bursts: %d\n", got_bursts);
|
||
if (got_bursts < 3) {
|
||
fprintf(stderr, " FAIL: expected >=3 bursts, got %d\n", got_bursts);
|
||
return 1;
|
||
}
|
||
printf(" PASS (unbind works, toggle channel 0)\n");
|
||
return 0;
|
||
}
|
||
|
||
/* test remove channel */
|
||
static int test_remove_channel(void) {
|
||
printf("Test: dynamic channel removal via MIDI command\n");
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) return 1;
|
||
jack_client_t *client;
|
||
jack_status_t status;
|
||
client = jack_client_open("test_remove", JackNoStartServer, &status);
|
||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " SKIP: no JACK\n");
|
||
return 1;
|
||
}
|
||
/* add channel */
|
||
if (send_jack_note_on("looper:control", 60, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send note 60 failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(1500000);
|
||
/* verify channel1_input exists */
|
||
const char **ports = jack_get_ports(client, NULL, JACK_DEFAULT_AUDIO_TYPE, 0);
|
||
int found = 0;
|
||
if (ports) {
|
||
for (int i = 0; ports[i]; i++) {
|
||
if (strstr(ports[i], "looper:channel1_input")) {
|
||
found = 1;
|
||
break;
|
||
}
|
||
}
|
||
jack_free(ports);
|
||
}
|
||
if (!found) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: channel1_input not created\n");
|
||
return 1;
|
||
}
|
||
printf(" channel1_input created\n");
|
||
/* remove channel */
|
||
if (send_jack_note_on("looper:control", 61, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: send note 61 failed\n");
|
||
return 1;
|
||
}
|
||
safe_usleep(3000000);
|
||
/* verify channel1_input has disappeared */
|
||
ports = jack_get_ports(client, NULL, JACK_DEFAULT_AUDIO_TYPE, 0);
|
||
int still_found = 0;
|
||
if (ports) {
|
||
for (int i = 0; ports[i]; i++) {
|
||
if (strstr(ports[i], "looper:channel1_input")) {
|
||
still_found = 1;
|
||
break;
|
||
}
|
||
}
|
||
jack_free(ports);
|
||
}
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM);
|
||
waitpid(pid, NULL, 0);
|
||
if (still_found) {
|
||
fprintf(stderr, " FAIL: channel1_input not removed after remove command\n");
|
||
return 1;
|
||
}
|
||
printf(" PASS (channel removed)\n");
|
||
return 0;
|
||
}
|
||
|
||
/* ------------------------------------------------------------
|
||
* Helper: generate a simple 440 Hz WAV file for load tests
|
||
* ------------------------------------------------------------ */
|
||
static int generate_test_wav(const char *path, unsigned sample_rate, unsigned duration_frames) {
|
||
int fd = open(path, O_WRONLY | O_CREAT | O_TRUNC, 0644);
|
||
if (fd < 0) return -1;
|
||
unsigned data_bytes = duration_frames * 2;
|
||
unsigned file_size = 44 + data_bytes;
|
||
unsigned char header[44];
|
||
memset(header, 0, 44);
|
||
memcpy(header, "RIFF", 4);
|
||
header[4] = file_size & 0xff; header[5] = (file_size>>8)&0xff;
|
||
header[6] = (file_size>>16)&0xff; header[7] = (file_size>>24)&0xff;
|
||
memcpy(header+8, "WAVE", 4);
|
||
memcpy(header+12, "fmt ", 4);
|
||
header[16]=16; header[17]=0; header[18]=0; header[19]=0;
|
||
header[20]=1; header[21]=0; /* PCM */
|
||
header[22]=1; header[23]=0; /* mono */
|
||
header[24]= sample_rate & 0xff; header[25]=(sample_rate>>8)&0xff;
|
||
header[26]=(sample_rate>>16)&0xff; header[27]=(sample_rate>>24)&0xff;
|
||
unsigned br = sample_rate * 2;
|
||
header[28]= br & 0xff; header[29]=(br>>8)&0xff;
|
||
header[30]=(br>>16)&0xff; header[31]=(br>>24)&0xff;
|
||
header[32]=2; header[33]=0;
|
||
header[34]=16; header[35]=0;
|
||
memcpy(header+36, "data", 4);
|
||
header[40]= data_bytes & 0xff; header[41]=(data_bytes>>8)&0xff;
|
||
header[42]=(data_bytes>>16)&0xff; header[43]=(data_bytes>>24)&0xff;
|
||
if (write(fd, header, 44) != 44) { close(fd); return -1; }
|
||
for (unsigned i = 0; i < duration_frames; i++) {
|
||
float sample = sinf(2.0f * (float)M_PI * 440.0f * i / sample_rate);
|
||
int16_t s = (int16_t)(sample * 32767);
|
||
if (write(fd, &s, 2) != 2) { close(fd); return -1; }
|
||
}
|
||
close(fd);
|
||
return 0;
|
||
}
|
||
|
||
/* ------------------------------------------------------------
|
||
* Test: load WAV file (note 70 under control key)
|
||
* ------------------------------------------------------------ */
|
||
static int test_wav_load(void) {
|
||
printf("Test: load WAV file into channel 0 and detect playback\n");
|
||
if (generate_test_wav("loop.wav", 48000, 48000) != 0) {
|
||
fprintf(stderr, " FAIL: could not create test WAV\n");
|
||
return 1;
|
||
}
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) { unlink("loop.wav"); return 1; }
|
||
/* ensure fresh MIDI connection for this test */
|
||
midi_inject_close();
|
||
jack_client_t *client;
|
||
jack_status_t status;
|
||
client = jack_client_open("test_wav_load", JackNoStartServer, &status);
|
||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav");
|
||
fprintf(stderr, " SKIP: no JACK\n");
|
||
return 1;
|
||
}
|
||
jack_port_t *audio_out = jack_port_register(client, "out", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
|
||
jack_port_t *audio_in = jack_port_register(client, "in", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
|
||
if (!audio_out || !audio_in) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav");
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (jack_connect(client, "test_wav_load:out", "looper:input") ||
|
||
jack_connect(client, "looper:output", "test_wav_load:in")) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav");
|
||
return 1;
|
||
}
|
||
/* set up passthrough callback before sending load command */
|
||
int sr = jack_get_sample_rate(client);
|
||
continuous_sine = 0;
|
||
beep_remaining = 0;
|
||
bursts = 0;
|
||
prev_above = 0;
|
||
passthrough_output_port = audio_out;
|
||
passthrough_input_port = audio_in;
|
||
passthrough_phase = 0.0f;
|
||
passthrough_freq = 440.0f;
|
||
passthrough_sample_rate = sr;
|
||
passthrough_total_samples = 0;
|
||
passthrough_sum_sq = 0.0;
|
||
passthrough_done = 0;
|
||
jack_set_process_callback(client, passthrough_process, NULL);
|
||
if (jack_activate(client)) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav");
|
||
return 1;
|
||
}
|
||
/* send control key + note 70 to trigger load */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav"); return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 70, 127) != 0) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav"); return 1;
|
||
}
|
||
/* wait for the loop to be fully loaded and playing */
|
||
safe_usleep(3000000);
|
||
/* continue listening for the rest of the time */
|
||
safe_usleep(6000000); /* total 9 seconds after activation */
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
unlink("loop.wav");
|
||
int got_bursts = bursts;
|
||
double rms = passthrough_total_samples > 0 ?
|
||
sqrt(passthrough_sum_sq / passthrough_total_samples) : 0.0;
|
||
printf(" detected bursts: %d, RMS: %.6f\n", got_bursts, rms);
|
||
if (got_bursts < 3) {
|
||
fprintf(stderr, " FAIL: expected ≥3 bursts from loaded loop, got %d, RMS=%.6f\n", got_bursts, rms);
|
||
return 1;
|
||
}
|
||
printf(" PASS (loaded loop plays)\n");
|
||
return 0;
|
||
}
|
||
|
||
/* ------------------------------------------------------------
|
||
* Test: save WAV file (note 71 under control key)
|
||
* ------------------------------------------------------------ */
|
||
static int test_wav_save(void) {
|
||
printf("Test: save WAV file from loop\n");
|
||
pid_t pid = start_looper();
|
||
if (pid < 0) return 1;
|
||
jack_client_t *client;
|
||
jack_status_t status;
|
||
client = jack_client_open("test_wav_save", JackNoStartServer, &status);
|
||
if (!client) {
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " SKIP: no JACK\n");
|
||
return 1;
|
||
}
|
||
jack_port_t *audio_out = jack_port_register(client, "out", JACK_DEFAULT_AUDIO_TYPE, JackPortIsOutput, 0);
|
||
jack_port_t *audio_in = jack_port_register(client, "in", JACK_DEFAULT_AUDIO_TYPE, JackPortIsInput, 0);
|
||
if (!audio_out || !audio_in) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (jack_connect(client, "test_wav_save:out", "looper:input") ||
|
||
jack_connect(client, "looper:output", "test_wav_save:in")) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
/* record a beep: send note 1 (toggle channel 0) */
|
||
if (send_jack_note_on("looper:control", 1, 127) != 0) {
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
/* start generating a beep */
|
||
int sr = jack_get_sample_rate(client);
|
||
continuous_sine = 0;
|
||
beep_remaining = (int)(0.5f * sr);
|
||
bursts = 0; prev_above = 0;
|
||
passthrough_output_port = audio_out;
|
||
passthrough_input_port = audio_in;
|
||
passthrough_phase = 0.0f;
|
||
passthrough_freq = 440.0f;
|
||
passthrough_sample_rate = sr;
|
||
passthrough_total_samples = 0;
|
||
passthrough_sum_sq = 0.0;
|
||
passthrough_done = 0;
|
||
jack_set_process_callback(client, passthrough_process, NULL);
|
||
if (jack_activate(client)) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(800000);
|
||
/* toggle again to stop recording and start looping */
|
||
if (send_jack_note_on("looper:control", 1, 127) != 0) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(500000);
|
||
/* send control key + note 71 to save */
|
||
if (send_jack_note_on("looper:control", 64, 127) != 0) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(200000);
|
||
if (send_jack_note_on("looper:control", 71, 127) != 0) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
return 1;
|
||
}
|
||
safe_usleep(2000000);
|
||
/* check save.wav exists and has data */
|
||
int fd = open("save.wav", O_RDONLY);
|
||
if (fd < 0) {
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: save.wav not created\n");
|
||
return 1;
|
||
}
|
||
unsigned char hdr[44];
|
||
if (read(fd, hdr, 44) != 44) {
|
||
close(fd); unlink("save.wav");
|
||
jack_deactivate(client); jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: short header\n");
|
||
return 1;
|
||
}
|
||
unsigned data_bytes = hdr[40] | (hdr[41]<<8) | (hdr[42]<<16) | (hdr[43]<<24);
|
||
close(fd);
|
||
if (data_bytes == 0) {
|
||
unlink("save.wav");
|
||
jack_deactivate(client); jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
fprintf(stderr, " FAIL: empty save.wav\n");
|
||
return 1;
|
||
}
|
||
printf(" save.wav data size: %u bytes\n", data_bytes);
|
||
unlink("save.wav");
|
||
jack_deactivate(client);
|
||
jack_client_close(client);
|
||
kill(pid, SIGTERM); waitpid(pid, NULL, 0);
|
||
printf(" PASS (save.wav created)\n");
|
||
return 0;
|
||
}
|
||
|
||
int main(void) {
|
||
/* 1. binary must exist */
|
||
if (system("test -x ./looper") != 0) {
|
||
fprintf(stderr, "FATAL: looper binary not found\n");
|
||
return 1;
|
||
}
|
||
|
||
/* 2. MIDI transition tests (skipped – no external tools) */
|
||
|
||
/* 3. Audio pass‑through test – must work for basic connectivity */
|
||
test_audio_pass_through();
|
||
|
||
int failures = 0;
|
||
|
||
/* 4. Test that looping feature is now implemented */
|
||
if (test_looper_looping() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 5. Test multiple dynamic channels */
|
||
if (test_multiple_channels() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 6. Test control‑key modifier */
|
||
if (test_control_key_modifier() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 7. Test bind channel */
|
||
if (test_bind_channel() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 8. Test unbind */
|
||
if (test_bind_unbind() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 9. Test channel removal */
|
||
if (test_remove_channel() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 10. Test WAV load */
|
||
if (test_wav_load() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
/* 11. Test WAV save */
|
||
if (test_wav_save() != 0) {
|
||
fprintf(stderr, " FAILED\n");
|
||
failures++;
|
||
}
|
||
|
||
close_persistent_midi();
|
||
|
||
if (failures > 0) {
|
||
fprintf(stderr, "%d test(s) FAILED\n", failures);
|
||
return 1;
|
||
}
|
||
printf("All tests completed successfully.\n");
|
||
return 0;
|
||
}
|