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#include "synth_gui.h"
#define RAYGUI_IMPLEMENTATION
#include "raygui.h"
//#include "raylib.h"
void
set_note(void *synthData, float note, PaTime time, int key)
{
synth_t * synth = (synth_t *)synthData;
synth->n.key = key;
synth->n.freq = note;
synth->n.noteOn = time;
synth->n.noteOff = 0;
synth->n.elapsed = 0;
synth->adsr.elapsed = 0;
synth->active = 1;
}
void
keyboard(void *synthData, PaStream *stream)
{
synth_t * synth = (synth_t *)synthData;
int keys[] = {KEY_Q, KEY_TWO, KEY_W, KEY_THREE, KEY_E, KEY_R, KEY_FIVE, KEY_T, KEY_SIX, KEY_Y, KEY_SEVEN, KEY_U, KEY_I, KEY_NINE, KEY_O, KEY_ZERO, KEY_P, KEY_LEFT_BRACKET, KEY_EQUAL, KEY_RIGHT_BRACKET, 0};
float note;
for (int i = 0; keys[i]; i++) {
if (IsKeyPressed(keys[i])) {
note = notes[i % 12][(synth->octave + (i / 12)) % 8];
if (note) {
set_note(synth, note, Pa_GetStreamTime(stream), keys[i]);
//printf("Note On : %s[%d] %fHz\n", int_to_note(i % 12), (synth->octave + (i / 12)) % 8, note);
}
}
}
for (int i = 0; keys[i]; i++) {
if (IsKeyReleased(keys[i])) {
note = notes[i % 12][(synth->octave + (i / 12)) % 8];
if (synth->n.key == keys[i]) {
synth->n.noteOff = Pa_GetStreamTime(stream);
//printf("Note Off: %s[%d]\n", int_to_note(i % 12), (synth->octave + (i / 12)) % 8);
}
}
}
}
void
draw_adsr_sliders(synth_t * synth, int x, int y, int width, int height, int offset)
{
char buf[64];
int count = 0;
snprintf(buf, sizeof buf, "%.3f", synth->adsr.a);
synth->adsr.a = GuiSlider((Rectangle){ x, y + count++ * (height + offset), width, height }, "A: ", buf, synth->adsr.a , 0.0f, 2.0f);
snprintf(buf, sizeof buf, "%.3f", synth->adsr.peak);
synth->adsr.peak = GuiSlider((Rectangle){ x, y + count++ * (height + offset), width, height }, "P: ", buf, synth->adsr.peak , 0.0f, 1.0f);
snprintf(buf, sizeof buf, "%.3f", synth->adsr.d);
synth->adsr.d = GuiSlider((Rectangle){ x, y + count++ * (height + offset), width, height }, "D: ", buf, synth->adsr.d , 0.001f, 2.0f);
snprintf(buf, sizeof buf, "%.3f", synth->adsr.s);
synth->adsr.s = GuiSlider((Rectangle){ x, y + count++ * (height + offset), width, height }, "S: ", buf, synth->adsr.s , 0.0f, 1.0f);
snprintf(buf, sizeof buf, "%.3f", synth->adsr.r);
synth->adsr.r = GuiSlider((Rectangle){ x, y + count++ * (height + offset), width, height }, "R: ", buf, synth->adsr.r , -0.001f, 3.0f);
snprintf(buf, sizeof buf, "%.3f", synth->cutoff);
synth->cutoff = GuiSliderBar((Rectangle){ x, y + count++ * (height + offset), width, height }, "fC: ", buf, synth->cutoff , 0.0f, 11000.0f);
snprintf(buf, sizeof buf, "%.3f", synth->resonance);
synth->resonance = GuiSliderBar((Rectangle){ x, y + count++ * (height + offset), width, height }, "fR: ", buf, synth->resonance , 0.001f, 5.0f);
}
void
draw_signals(synth_t * synth, int x, int y, int width, int height)
{
DrawRectangleLines(x, y, width, height, BLACK);
int point_radius = 1.5;
GuiSpinner((Rectangle){ x+ 100, y - 24 - 6, 100, 24 }, "rate divider: ", &(synth->viz.sample_rate_divider), 1, 10, 0);
int period = (1 / (synth->n.freq + 1)) * SAMPLE_RATE / synth->viz.sample_rate_divider;
for (int i = x; i < WIDTH - x; i++) {
DrawCircle(i , y + height / 2 + floor(50 * synth->viz.wave[x * (SAMPLE_RATE / 2)]), point_radius, MAGENTA);
}
if (synth->multi) {
for (int i = x; i < WIDTH - x; i++) {
DrawCircle(i , y + height / 2 + floor(50 * make_sample(i - x, synth, SAMPLE_RATE / synth->viz.sample_rate_divider, 1)), point_radius, RED);
}
} else {
for (int i = x; i < WIDTH - x; i++) {
DrawCircle(i , y + height / 2 + floor(50 * make_sample((i - x) % period, synth, SAMPLE_RATE / synth->viz.sample_rate_divider, 1)), point_radius, RED);
}
}
for (int i = x; i < WIDTH - x; i++) {
DrawCircle(i , y + height - 1+ floor((WIDTH / 24) * - adsr_amplitude(synth, synth->adsr.elapsed)), point_radius, GREEN);
}
float adsr_duration = synth->adsr.a + synth->adsr.d + (synth->adsr.a + synth->adsr.d + synth->adsr.r) / 3.0 + synth->adsr.r;
for (int i = x; i < WIDTH - x; i++) {
DrawCircle(i , y + height - 1 + floor((WIDTH / 24) * - adsr_amplitude(synth, (i - x) * (adsr_duration * SAMPLE_RATE) / WIDTH)), point_radius, BLUE);
}
}
void
rayrun(void *synthData, PaStream *stream)
{
synth_t * synth = (synth_t *)synthData;
PaTime current_time = 0;
PaTime prev_time = 0;
InitWindow(WIDTH, HEIGHT, "Raylib synth");
SetTargetFPS(60); // Set our game to run at 60 frames-per-second
while (!WindowShouldClose()) {
keyboard(synth, stream);
int prec = 100000;
if (IsKeyPressed(KEY_ENTER)) {
synth->multi = !synth->multi;
}
// Draw
//----------------------------------------------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
// GUI
char buf[64];
draw_adsr_sliders(synth, 30, 20, 256, 20, 4);
if ( GuiButton((Rectangle){ WIDTH / 2 - 108, 150 - 42 - 6 - 6, 216, 6 }, "")) {
synth->freq_offset = 0;
}
snprintf(buf, sizeof buf, "%.1f", synth->freq_offset);
synth->freq_offset = GuiSlider((Rectangle){ WIDTH / 2 - 108, 150 - 42, 216, 24 }, "fine", buf, synth->freq_offset , -20.0f, 20.0f);
if ( GuiButton((Rectangle){ WIDTH / 2 - 108, 150 - 6 - 6, 216, 6 }, "")) {
synth->gain = 1;
}
snprintf(buf, sizeof buf, "%.1f", synth->gain);
synth->gain = GuiSlider((Rectangle){ WIDTH / 2 - 108, 150, 216, 24 }, "gain", buf, synth->gain , 0.0f, 2.0f);
if ( GuiButton((Rectangle){ WIDTH / 2 - 108, 150 - 6 - 6 + 42, 216, 6 }, "")) {
synth->x = 1;
}
snprintf(buf, sizeof buf, "%.1f", synth->x);
synth->x = GuiSlider((Rectangle){ WIDTH / 2 - 108, 150 + 42, 216, 24 }, "x", buf, synth->x , 0.0f, 2.0f);
synth->multi = GuiToggle((Rectangle){ WIDTH - 100 - 50 - 100 - 50 , 50, 100, 24 }, "!MULTI!", synth->multi);
synth->filter = GuiToggle((Rectangle){ WIDTH - 100 - 50 - 100 - 50 , 50 + 24 + 6, 100, 24 }, "FILTER", synth->filter);
synth->poly = GuiToggle((Rectangle){ WIDTH - 100 - 50 - 100 - 50 , 50 + 24 + 6 + 24 + 6, 100, 24 }, "POLY", synth->poly);
GuiSpinner((Rectangle){ WIDTH - 100 - 50 , 50, 100, 24 }, "oct: ", &(synth->octave), 0, 7, 0);
snprintf(buf, sizeof buf, "generator %d --> ", synth->geni);
GuiSpinner((Rectangle){ WIDTH - 100 - 50 , 50 + 24 + 6, 100, 24 }, buf, &(synth->geni), 0, 3, 0);
synth->clamp = GuiToggle((Rectangle){ WIDTH - 100 - 50, 50 + 24 + 6 + 24 + 6, 100, 24 }, "clamp", synth->clamp);
// signals
draw_signals(synth, 20, 390, WIDTH - 2*20, 200);
DrawText("THE SYNTH!!!!!!!!!!!!!!!!!!1", WIDTH / 2 - 100, 50, 20, LIGHTGRAY);
DrawText("KEYBOARD: Q .. ] TOGGLE MULTI: ENTER", WIDTH / 2 -300, HEIGHT - 20 - 50, 20, LIGHTGRAY);
snprintf(buf, sizeof buf, "time?: %lld adsr: %lld note: %lld", synth->adsr.elapsed / SAMPLE_RATE, synth->adsr.elapsed, synth->n.elapsed);
DrawText(buf, WIDTH / 2 -300, HEIGHT - 40 - 50, 20, LIGHTGRAY);
EndDrawing();
//----------------------------------------------------------------------------------
current_time = Pa_GetStreamTime(stream);
//printf("%f :: %ld\n", current_time - prev_time, phase);
prev_time = current_time;
}
CloseWindow();
}
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