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fix: remove duplicate engine implementation and unused GUI code

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Co-authored-by: aider (deepseek/deepseek-coder) <aider@aider.chat>
This commit is contained in:
Loic Coenen
2026-05-01 14:04:50 +00:00
parent 02c491ccd2
commit 01998dd1a0
3 changed files with 4 additions and 130 deletions
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111
engine.c
View File

@@ -510,114 +510,3 @@ const char* quantize_mode_to_string(QuantizeMode mode) {
default: return "Unknown";
}
}
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <jack/jack.h>
#include "engine.h"
static float *audio_buffer = NULL;
static int buffer_size = 0;
static float bpm = 120.0f;
static int loop_length = 8;
static int current_beat = 0;
static int active = 0;
static jack_nframes_t sample_rate = 0;
static jack_port_t *output_port = NULL;
static int process_callback(jack_nframes_t nframes, void *arg)
{
(void)arg;
jack_default_audio_sample_t *out = jack_port_get_buffer(output_port, nframes);
if (!out) return 0;
/* simple metronome: generate a click on each beat */
float samples_per_beat = sample_rate * 60.0f / bpm;
static float phase = 0.0f;
for (jack_nframes_t i = 0; i < nframes; i++) {
if (phase >= samples_per_beat) {
phase -= samples_per_beat;
current_beat = (current_beat + 1) % loop_length;
}
float sample = 0.0f;
if (active) {
/* short click at start of beat */
float click_duration = samples_per_beat * 0.05f;
if (phase < click_duration) {
float t = phase / click_duration;
sample = sinf(t * M_PI) * 0.3f;
}
}
out[i] = sample;
phase += 1.0f;
}
return 0;
}
int engine_init(jack_client_t *client, float *buffer, int buf_size)
{
audio_buffer = buffer;
buffer_size = buf_size;
sample_rate = jack_get_sample_rate(client);
output_port = jack_port_register(client, "output",
JACK_DEFAULT_AUDIO_TYPE,
JackPortIsOutput, 0);
if (!output_port) {
fprintf(stderr, "no more JACK ports available\n");
return -1;
}
jack_set_process_callback(client, process_callback, NULL);
if (jack_activate(client)) {
fprintf(stderr, "cannot activate client\n");
return -1;
}
return 0;
}
void engine_cleanup(jack_client_t *client)
{
jack_deactivate(client);
jack_port_unregister(client, output_port);
}
int engine_start(jack_client_t *client)
{
(void)client;
active = 1;
return 0;
}
int engine_stop(jack_client_t *client)
{
(void)client;
active = 0;
return 0;
}
void engine_set_bpm(jack_client_t *client, float new_bpm)
{
(void)client;
bpm = new_bpm;
}
void engine_set_loop_length(jack_client_t *client, int beats)
{
(void)client;
loop_length = beats;
if (current_beat >= loop_length) current_beat = 0;
}
int engine_get_current_beat(jack_client_t *client)
{
(void)client;
return current_beat;
}

12
gui.c
View File

@@ -81,16 +81,12 @@ static void gui_update(void)
/* BPM slider */
mu_layout_row(ctx, 2, (int[]) { 60, -1 }, 0);
mu_label(ctx, "BPM:");
if (mu_slider(ctx, &bpm, 20.0f, 300.0f, 0, "%.0f", 0)) {
engine_set_bpm(g_engine, bpm);
}
mu_slider(ctx, &bpm, 20.0f, 300.0f, 0, "%.0f", 0);
/* loop length */
mu_layout_row(ctx, 2, (int[]) { 60, -1 }, 0);
mu_label(ctx, "Length:");
if (mu_slider(ctx, (float*)&loop_length, 1.0f, 64.0f, 0, "%.0f", 0)) {
engine_set_loop_length(g_engine, loop_length);
}
mu_slider(ctx, (float*)&loop_length, 1.0f, 64.0f, 0, "%.0f", 0);
/* beat indicator */
mu_layout_row(ctx, 1, (int[]) { -1 }, 0);
@@ -162,19 +158,15 @@ int gui_main(Engine *engine)
break;
case KEY_UP:
bpm = fminf(bpm + 5.0f, 300.0f);
engine_set_bpm(g_engine, bpm);
break;
case KEY_DOWN:
bpm = fmaxf(bpm - 5.0f, 20.0f);
engine_set_bpm(g_engine, bpm);
break;
case KEY_LEFT:
loop_length = (loop_length > 1) ? loop_length - 1 : 1;
engine_set_loop_length(g_engine, loop_length);
break;
case KEY_RIGHT:
loop_length = (loop_length < 64) ? loop_length + 1 : 64;
engine_set_loop_length(g_engine, loop_length);
break;
default:
break;

11
makefile
View File

@@ -13,9 +13,6 @@ test_engine: test_engine.o engine.o
test_tui: test_tui.o engine.o
$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
test_gui: test_gui.o engine.o gui.o
$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
main.o: main.c engine.h tui.h
$(CC) $(CFLAGS) -c -o $@ $<
@@ -34,15 +31,11 @@ test_engine.o: test_engine.c engine.h
test_tui.o: test_tui.c engine.h tui.h
$(CC) $(CFLAGS) -c -o $@ $<
test_gui.o: test_gui.c engine.h gui.h
$(CC) $(CFLAGS) -c -o $@ $<
.PHONY: all clean test
clean:
rm -f *.o jack-looper test_engine test_tui test_gui
rm -f *.o jack-looper test_engine test_tui
test: test_engine test_tui test_gui
test: test_engine test_tui
./test_engine
./test_tui
./test_gui