ash/loopy_midi_controller
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add Launchpad X velocity->color palette and matching startup animation

Browse Source
This commit is contained in:
Ashley Strahle
2026-06-24 01:25:45 +00:00
parent 2eced5c007
commit b2d726a953
1 changed files with 122 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/led_stub.cpp
+122 -17
View File
@@ -4,6 +4,49 @@
static PixelStompMux* mux_ptr = nullptr;
// Launchpad X color palette (velocity 1-127 mapped to colors)
static const uint32_t launchpad_palette[128] = {
0x000000, // 0: off
0xFF0000, 0xFF0000, 0xFF0000, 0xFF0000, // 1-4: Red
0xFF0000, 0xFF0000, 0xFF0000, 0xFF0000, // 5-8: Red
0xFF0000, 0xFF0000, 0xFF0000, 0xFF0000, // 9-12: Red
0xFF0000, 0xFF0000, 0xFF0000, 0xFF0000, // 13-16: Red
0xFF6600, 0xFF6600, 0xFF6600, 0xFF6600, // 17-20: Amber
0xFF6600, 0xFF6600, 0xFF6600, 0xFF6600, // 21-24: Amber
0xFF6600, 0xFF6600, 0xFF6600, 0xFF6600, // 25-28: Amber
0xFF6600, 0xFF6600, 0xFF6600, 0xFF6600, // 29-32: Amber
0xFFFF00, 0xFFFF00, 0xFFFF00, 0xFFFF00, // 33-36: Yellow
0xFFFF00, 0xFFFF00, 0xFFFF00, 0xFFFF00, // 37-40: Yellow
0xFFFF00, 0xFFFF00, 0xFFFF00, 0xFFFF00, // 41-44: Yellow
0xFFFF00, 0xFFFF00, 0xFFFF00, 0xFFFF00, // 45-48: Yellow
0x00FF00, 0x00FF00, 0x00FF00, 0x00FF00, // 49-52: Green
0x00FF00, 0x00FF00, 0x00FF00, 0x00FF00, // 53-56: Green
0x00FF00, 0x00FF00, 0x00FF00, 0x00FF00, // 57-60: Green
0x00FF00, 0x00FF00, 0x00FF00, 0x00FF00, // 61-64: Green
0x00FF66, 0x00FF66, 0x00FF66, 0x00FF66, // 65-68: Mint
0x00FF66, 0x00FF66, 0x00FF66, 0x00FF66, // 69-72: Mint
0x00FF66, 0x00FF66, 0x00FF66, 0x00FF66, // 73-76: Mint
0x00FF66, 0x00FF66, 0x00FF66, 0x00FF66, // 77-80: Mint
0x00FFFF, 0x00FFFF, 0x00FFFF, 0x00FFFF, // 81-84: Light Blue
0x00FFFF, 0x00FFFF, 0x00FFFF, 0x00FFFF, // 85-88: Light Blue
0x00FFFF, 0x00FFFF, 0x00FFFF, 0x00FFFF, // 89-92: Light Blue
0x00FFFF, 0x00FFFF, 0x00FFFF, 0x00FFFF, // 93-96: Light Blue
0x0000FF, 0x0000FF, 0x0000FF, 0x0000FF, // 97-100: Blue
0x0000FF, 0x0000FF, 0x0000FF, 0x0000FF, // 101-104: Blue
0x0000FF, 0x0000FF, 0x0000FF, 0x0000FF, // 105-108: Blue
0x0000FF, 0x0000FF, 0x0000FF, 0x0000FF, // 109-112: Blue
0x6600FF, 0x6600FF, 0x6600FF, 0x6600FF, // 113-116: Purple
0x6600FF, 0x6600FF, 0x6600FF, 0x6600FF, // 117-120: Purple
0x6600FF, 0x6600FF, 0x6600FF, 0x6600FF, // 121-124: Purple
0x6600FF, 0x6600FF, 0x6600FF, 0x6600FF, // 125-128: Purple
};
static uint32_t velocity_to_color(uint8_t velocity) {
if (velocity == 0) return 0x000000;
if (velocity >= 128) return launchpad_palette[127];
return launchpad_palette[velocity];
}
DefaultLedStub::DefaultLedStub() : initialized(false) {
for (int i = 0; i < NUM_LEDS; i++) {
led_states[i].active = false;
@@ -19,7 +62,7 @@ void DefaultLedStub::set_mux(PixelStompMux* mux) {
}
void DefaultLedStub::begin() {
Serial.println("[LED] Using WS2812C via PixelStomp MUX (FastLED I2S)");
Serial.println("[LED] Using WS2812C via PixelStomp MUX (FastLED)");
initialized = true;
if (!mux_ptr) {
@@ -27,37 +70,99 @@ void DefaultLedStub::begin() {
return;
}
Serial.println("[LED] Startup animation...");
Serial.println("[LED] Launchpad-style startup animation...");
uint32_t colors[] = {
0xFF0000,
0x00FF00,
0x0000FF,
0xFFFF00,
0xFF00FF,
0x00FFFF,
0xFFFFFF,
};
int num_colors = sizeof(colors) / sizeof(colors[0]);
for (int c = 0; c < num_colors; c++) {
uint32_t color = colors[c];
// Launchpad X style: sweep each LED through palette, then all-off
for (int i = 0; i < NUM_LEDS; i++) {
for (int c = 1; c <= 127; c += 8) {
uint32_t color = launchpad_palette[c];
uint8_t r = (color >> 16) & 0xFF;
uint8_t g = (color >> 8) & 0xFF;
uint8_t b = color & 0xFF;
mux_ptr->set_led_color(i, r, g, b);
mux_ptr->show();
delay(15);
}
// Turn off this LED before moving to next
mux_ptr->set_led_color(i, 0, 0, 0);
mux_ptr->show();
}
// Final: all LEDs pulse through palette once together
for (int c = 1; c <= 127; c += 4) {
uint32_t color = launchpad_palette[c];
uint8_t r = (color >> 16) & 0xFF;
uint8_t g = (color >> 8) & 0xFF;
uint8_t b = color & 0xFF;
for (int i = 0; i < NUM_LEDS; i++) {
mux_ptr->set_led_color(i, r, g, b);
}
mux_ptr->show();
Serial.printf("[LED] Colour %d: R=%d G=%d B=%d\n", c, r, g, b);
delay(300);
delay(12);
}
clear_all();
Serial.println("[LED] Startup complete");
}
void DefaultLedStub::set_led_state(uint8_t note, uint8_t channel, uint8_t velocity) {
if (!initialized || !mux_ptr) return;
for (int i = 0; i < NUM_LEDS; i++) {
if (led_states[i].active && led_states[i].note == note && led_states[i].channel == channel) {
led_states[i].velocity = velocity;
led_states[i].timestamp = millis();
uint32_t color = velocity_to_color(velocity);
uint8_t r = (color >> 16) & 0xFF;
uint8_t g = (color >> 8) & 0xFF;
uint8_t b = color & 0xFF;
mux_ptr->set_led_color(i, r, g, b);
mux_ptr->show();
Serial.printf("[LED] Updated LED %d: note=%d ch=%d vel=%d\n", i, note, channel, velocity);
return;
}
}
// Find free slot
for (int i = 0; i < NUM_LEDS; i++) {
if (!led_states[i].active) {
led_states[i].active = true;
led_states[i].note = note;
led_states[i].channel = channel;
led_states[i].velocity = velocity;
led_states[i].timestamp = millis();
uint32_t color = velocity_to_color(velocity);
uint8_t r = (color >> 16) & 0xFF;
uint8_t g = (color >> 8) & 0xFF;
uint8_t b = color & 0xFF;
mux_ptr->set_led_color(i, r, g, b);
mux_ptr->show();
Serial.printf("[LED] Activated LED %d: note=%d ch=%d vel=%d\n", i, note, channel, velocity);
return;
}
}
}
void DefaultLedStub::clear_all() {
if (!initialized || !mux_ptr) return;
for (int i = 0; i < NUM_LEDS; i++) {
led_states[i].active = false;
led_states[i].velocity = 0;
led_states[i].note = 0;
led_states[i].channel = 0;
led_states[i].timestamp = 0;
mux_ptr->set_led_color(i, 0, 0, 0);
}
mux_ptr->show();
}
void DefaultLedStub::set_led_brightness(uint8_t brightness) {
if (!initialized || !mux_ptr) return;
mux_ptr->set_led_brightness(brightness);
mux_ptr->show();
}
void DefaultLedStub::set_led_state(uint8_t note, uint8_t channel, uint8_t velocity) {
if (!initialized || !mux_ptr) return;