lianlinux/core/rgbmode.go

package core

import (
	"bytes"
	"github.com/charmbracelet/log"
	"github.com/sstallion/go-hid"
)

const BaseLightningByte = 0xE0

const Rainbow = 0x05
const RainbowMorph = 0x04
const RainbowSecond = 0xFF

const StaticFirst = 0x01
const StaticSecond = 0x02

// Change device light mode by sending mode bytes
func changeMode(color []byte, device hid.DeviceInfo) {
	// Iterate through all ports (4) on hub and change their lightning
	for i := 0; i < 4; i++ {
		DeviceWrite(device, append([]byte{BaseLightningByte, byte(0x10 + i)}, color...))
	}
}

// Change device light mode with RGB arguments
func changeRGBMode(device hid.DeviceInfo, color []byte, mode byte) {
	for i := 0; i < 4; i++ {
		var rgb []byte
		for i := 0; i < 38; i++ {
			rgb = append(rgb, color...)
		}

		rgb = append(rgb, bytes.Repeat([]byte{0x00}, 200)...)
		colorPacket := append([]byte{0xe0, byte(0x30 + i)}, rgb...)

		DeviceWrite(*Devs[0], []byte{0xe0, byte(0x10 + i), 0x32, mode})
		DeviceWrite(*Devs[0], colorPacket)
	}
}

// Set device light mode to Static
func static(device hid.DeviceInfo, color []byte) {
	changeRGBMode(device, color, 0x03)
	changeMode(append([]byte{StaticFirst, StaticSecond}, bytes.Repeat([]byte{0x00}, 257)...), device)
}

// Set device light mode to Breathing
func breathing(device hid.DeviceInfo, color []byte) {
	changeRGBMode(device, color, 0x03)
	changeMode(append([]byte{0x02, 0xff}, bytes.Repeat([]byte{0x00}, 257)...), device)
}

// Set device light mode to Meteor
func meteor(device hid.DeviceInfo, color []byte) {
	for i := 0; i < 4; i++ {
		var rgb []byte
		for i := 0; i < 38; i++ {
			rgb = append(rgb, color...)
		}

		rgb = append(rgb, bytes.Repeat([]byte{0x00}, 200)...)
		colorPacket := append([]byte{0xe0, byte(0x30 + i), 0xaa, 0x11, 0xff,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa,
			0xd1, 0xaa, 0x11, 0xff, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0xff, 0xff, 0xff, 0xaa, 0x11, 0xff,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xaa,
			0xd1, 0xaa, 0x11, 0xff, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
			0x00})

		DeviceWrite(*Devs[0], []byte{0xe0, byte(0x10 + i), 0x32, 0x13})
		DeviceWrite(*Devs[0], colorPacket)
	}
	changeMode(append([]byte{0x24, 0xff}, bytes.Repeat([]byte{0x00}, 257)...), device)
}

// Set device light mode to Rainbow
func rainbow(device hid.DeviceInfo) {
	changeMode([]byte{Rainbow, RainbowSecond}, device)
}

// Set device light mode to Morph
func rainbowMorph(device hid.DeviceInfo) {
	changeMode([]byte{RainbowMorph, RainbowSecond}, device)
}

func SetLightMode(device hid.DeviceInfo, mode string, rgb ...byte) {
	log.Debugf("Setting %s mode for device %s", mode, device.ProductStr)

	switch mode {
	case "rainbow":
		rainbow(device)
	case "morph":
		rainbowMorph(device)
	case "static":
		static(device, rgb)
	case "breathing":
		breathing(device, rgb)
	default:
		log.Fatalf("Unknown mode %s, available: rainbow, morph, static, breathing", mode)
	}
}