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Fix image headers, add Stream Deck+ color mixer with coarse/fine encoders

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This commit is contained in:
Ian Gulliver
2026-02-11 22:16:20 -08:00
parent 12e02e680d
commit f268d519b8
3 changed files with 156 additions and 23 deletions
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118
cmd/deckcolor/main.go Normal file
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@@ -0,0 +1,118 @@
package main
import (
"fmt"
"image"
"image/color"
"image/draw"
"os"
"os/signal"
"syscall"
"qrun/lib/streamdeck"
)
func clamp(v int) int {
if v < 0 {
return 0
}
if v > 255 {
return 255
}
return v
}
func main() {
dev, err := streamdeck.OpenModel(&streamdeck.ModelPlus)
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
os.Exit(1)
}
defer dev.Close()
dev.SetBrightness(80)
rgb := [3]int{0, 0, 0}
fine := [3]bool{false, false, false}
labels := [3]string{"R", "G", "B"}
labelColors := [3]color.RGBA{
{255, 0, 0, 255},
{0, 255, 0, 255},
{0, 100, 255, 255},
}
updateLCD := func() {
c := color.RGBA{uint8(rgb[0]), uint8(rgb[1]), uint8(rgb[2]), 255}
dev.SetLCDColor(0, 0, dev.Model().LCDWidth, dev.Model().LCDHeight, c)
}
updateKey := func(i int) {
bg := color.RGBA{labelColors[i].R / 4, labelColors[i].G / 4, labelColors[i].B / 4, 255}
sz := dev.Model().KeySize
txt := streamdeck.TextImageWithFaceSized(streamdeck.MonoBoldSmall, sz, bg, labelColors[i], labels[i], fmt.Sprintf("%d", rgb[i]))
if fine[i] {
img := image.NewRGBA(image.Rect(0, 0, sz, sz))
draw.Draw(img, img.Bounds(), txt, image.Point{}, draw.Src)
border := labelColors[i]
b := 4
for y := 0; y < sz; y++ {
for x := 0; x < sz; x++ {
if x < b || x >= sz-b || y < b || y >= sz-b {
img.Set(x, y, border)
}
}
}
dev.SetKeyImage(i, img)
} else {
dev.SetKeyImage(i, txt)
}
}
updateAllKeys := func() {
for i := 0; i < 3; i++ {
updateKey(i)
}
}
updateLCD()
updateAllKeys()
for i := 3; i < dev.Model().Keys; i++ {
dev.ClearKey(i)
}
input := make(chan streamdeck.InputEvent, 64)
go func() {
if err := dev.ReadInput(input); err != nil {
fmt.Fprintf(os.Stderr, "Read error: %v\n", err)
}
}()
sig := make(chan os.Signal, 1)
signal.Notify(sig, syscall.SIGINT, syscall.SIGTERM)
for {
select {
case ev := <-input:
if ev.Encoder != nil && ev.Encoder.Encoder < 3 {
i := ev.Encoder.Encoder
if ev.Encoder.Delta != 0 {
delta := ev.Encoder.Delta
if !fine[i] {
delta *= 10
}
rgb[i] = clamp(rgb[i] + delta)
updateLCD()
updateKey(i)
fmt.Printf("R=%d G=%d B=%d\n", rgb[0], rgb[1], rgb[2])
} else if ev.Encoder.Pressed {
fine[i] = !fine[i]
updateKey(i)
}
}
case <-sig:
fmt.Println()
return
}
}
}

40
lib/streamdeck/streamdeck.go
View File

@@ -181,10 +181,10 @@ func (d *Device) ClearAllKeys() error {
func (d *Device) sendKeyImage(key byte, imgData []byte) error {
reportLen := d.dev.GetOutputReportLength()
hdrLen := uint16(8)
hdrLen := uint16(7)
payloadLen := reportLen - hdrLen
var page uint16
var page byte
for start := uint16(0); start < uint16(len(imgData)); page++ {
end := start + payloadLen
last := byte(0)
@@ -195,14 +195,13 @@ func (d *Device) sendKeyImage(key byte, imgData []byte) error {
chunk := imgData[start:end]
hdr := []byte{
0x02,
0x07,
key,
last,
byte(len(chunk)),
byte(len(chunk) >> 8),
byte(page),
byte(page >> 8),
page,
0,
}
payload := append(hdr, chunk...)
@@ -241,10 +240,10 @@ func (d *Device) SetLCDColor(x, y, w, h int, c color.Color) error {
func (d *Device) sendLCDImage(x, y, w, h uint16, imgData []byte) error {
reportLen := d.dev.GetOutputReportLength()
hdrLen := uint16(16)
hdrLen := uint16(15)
payloadLen := reportLen - hdrLen
var page uint16
var page byte
for start := uint16(0); start < uint16(len(imgData)); page++ {
end := start + payloadLen
last := byte(0)
@@ -254,17 +253,22 @@ func (d *Device) sendLCDImage(x, y, w, h uint16, imgData []byte) error {
}
chunk := imgData[start:end]
hdr := make([]byte, 16)
hdr[0] = 0x02
hdr[1] = 0x0C
binary.LittleEndian.PutUint16(hdr[2:], x)
binary.LittleEndian.PutUint16(hdr[4:], y)
binary.LittleEndian.PutUint16(hdr[6:], w)
binary.LittleEndian.PutUint16(hdr[8:], h)
hdr[10] = last
binary.LittleEndian.PutUint16(hdr[11:], page)
binary.LittleEndian.PutUint16(hdr[13:], uint16(len(chunk)))
hdr[15] = 0
hdr := make([]byte, 15)
hdr[0] = 0x0C
hdr[1] = byte(x)
hdr[2] = byte(x >> 8)
hdr[3] = byte(y)
hdr[4] = byte(y >> 8)
hdr[5] = byte(w)
hdr[6] = byte(w >> 8)
hdr[7] = byte(h)
hdr[8] = byte(h >> 8)
hdr[9] = last
hdr[10] = page
hdr[11] = 0
hdr[12] = byte(len(chunk))
hdr[13] = byte(len(chunk) >> 8)
hdr[14] = 0
payload := append(hdr, chunk...)
padding := make([]byte, reportLen-uint16(len(payload)))

11
lib/streamdeck/text.go
View File

@@ -20,6 +20,9 @@ var (
MonoRegular font.Face
MonoMedium font.Face
MonoBold font.Face
MonoRegularSmall font.Face
MonoMediumSmall font.Face
MonoBoldSmall font.Face
Regular font.Face
Bold font.Face
)
@@ -28,6 +31,9 @@ func init() {
MonoRegular = loadFace("fonts/AtkinsonHyperlegibleMono-Regular.ttf", 72)
MonoMedium = loadFace("fonts/AtkinsonHyperlegibleMono-Medium.ttf", 72)
MonoBold = loadFace("fonts/AtkinsonHyperlegibleMono-Bold.ttf", 72)
MonoRegularSmall = loadFace("fonts/AtkinsonHyperlegibleMono-Regular.ttf", 40)
MonoMediumSmall = loadFace("fonts/AtkinsonHyperlegibleMono-Medium.ttf", 40)
MonoBoldSmall = loadFace("fonts/AtkinsonHyperlegibleMono-Bold.ttf", 40)
Regular = loadFace("fonts/AtkinsonHyperlegible-Regular.ttf", 16)
Bold = loadFace("fonts/AtkinsonHyperlegible-Bold.ttf", 16)
}
@@ -93,6 +99,11 @@ func (d *Device) SetKeyText(key int, bg color.Color, fg color.Color, text string
return d.SetKeyImage(key, TextImageSized(d.model.KeySize, bg, fg, lines...))
}
func (d *Device) SetKeyTextWithFace(key int, face font.Face, bg color.Color, fg color.Color, text string) error {
lines := strings.Split(text, "\n")
return d.SetKeyImage(key, TextImageWithFaceSized(face, d.model.KeySize, bg, fg, lines...))
}
func (d *Device) SetKeyBoldText(key int, bg color.Color, fg color.Color, text string) error {
lines := strings.Split(text, "\n")
return d.SetKeyImage(key, TextImageWithFaceSized(MonoBold, d.model.KeySize, bg, fg, lines...))