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// This file is part of the 64k demo project.
// It tests the core functionality of the audio tracker engine.
#include "audio/gen.h"
#include "audio/synth.h"
#include "audio/tracker.h"
// #include "generated/music_data.h" // Will be generated by tracker_compiler
#include <assert.h>
#include <stdio.h>
// Forward declaration for generated data to avoid compilation issues before
// generation extern const NoteParams g_tracker_samples[]; extern const uint32_t
// g_tracker_samples_count; extern const TrackerPattern g_tracker_patterns[];
// extern const uint32_t g_tracker_patterns_count;
// extern const TrackerScore g_tracker_score;
void test_tracker_init() {
synth_init();
tracker_init();
printf("Tracker init test PASSED\n");
}
void test_tracker_pattern_triggering() {
synth_init();
tracker_init();
// At time 0.0f, 4 patterns are triggered:
// - crash (1 event at beat 0.0)
// - kick_basic (events at beat 0.0, 2.0, 2.5)
// - snare_basic (events at beat 1.0, 3.0)
// - hihat_stressed (events at beat 0.0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5)
// With the new event-based triggering, only events at beat 0.0 trigger immediately.
// Test 1: At music_time = 0.0f, events at beat 0.0 trigger
tracker_update(0.0f);
printf("Actual active voice count at 0.0f: %d\n",
synth_get_active_voice_count());
// Expect 3 voices: crash (beat 0.0), kick_basic (beat 0.0), hihat_stressed
// (beat 0.0)
assert(synth_get_active_voice_count() == 3);
// Test 2: At music_time = 0.25f (beat 0.5 @ 120 BPM), hihat event triggers
// beat_duration = 60.0f / 120.0f = 0.5s per beat
// beat 0.5 = 0.25s
tracker_update(0.25f);
printf("Actual active voice count at 0.25f: %d\n",
synth_get_active_voice_count());
// Expect 4 voices (3 previous + 1 new hihat)
assert(synth_get_active_voice_count() == 4);
// Test 3: At music_time = 0.5f (beat 1.0), snare event triggers
tracker_update(0.5f);
printf("Actual active voice count at 0.5f: %d\n",
synth_get_active_voice_count());
// Expect 6 voices (4 previous + snare + hihat at beat 1.0)
assert(synth_get_active_voice_count() == 6);
// Test 4: Advance further to 2.0f (beat 4.0), new pattern triggers at 2.0f
tracker_update(2.0f);
printf("Actual active voice count at 2.0f: %d\n",
synth_get_active_voice_count());
// Multiple events have triggered by now
assert(synth_get_active_voice_count() > 0);
printf("Tracker pattern triggering test PASSED\n");
}
int main() {
printf("Running Tracker tests...\n");
test_tracker_init();
test_tracker_pattern_triggering();
printf("Tracker tests PASSED\n");
return 0;
}
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