/
main.go
472 lines (392 loc) · 11.4 KB
/
main.go
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package main
import (
"github.com/stanchan/clock-8001/v3/clock"
"github.com/stanchan/go-rgb-led-matrix/bdf"
// "github.com/depili/go-rgb-led-matrix/matrix"
"github.com/jessevdk/go-flags"
// "github.com/kidoman/embd"
// _ "github.com/kidoman/embd/host/rpi" // This loads the RPi driver
// "github.com/veandco/go-sdl2/gfx"
"bufio"
"github.com/stanchan/clock-8001/debug"
"github.com/veandco/go-sdl2/sdl"
"github.com/veandco/go-sdl2/ttf"
"log"
"os"
"os/signal"
"strconv"
"strings"
"time"
)
// Clock size
const dy = 267
const dx = 192
var staticSDLColor = sdl.Color{R: 80, G: 80, B: 0, A: 255} // 12 static indicator circles
var secSDLColor = sdl.Color{R: 200, G: 0, B: 0, A: 255}
var textSDLColor sdl.Color
var window *sdl.Window
var renderer *sdl.Renderer
var parser = flags.NewParser(&options, flags.Default)
var textureSource sdl.Rect
var staticTexture *sdl.Texture
var secTexture *sdl.Texture
var testTexture *sdl.Texture
func main() {
options.Config = func(s string) error {
ini := flags.NewIniParser(parser)
return ini.ParseFile(s)
}
if _, err := parser.Parse(); err != nil {
if flagsErr, ok := err.(*flags.Error); ok && flagsErr.Type == flags.ErrHelp {
os.Exit(0)
} else {
os.Exit(1)
}
}
if options.Debug {
debug.Enabled = true
}
log.Printf("Reading timezones for clocks from %s\n", options.Timezones)
file, err := os.Open(options.Timezones)
if err != nil {
panic(err)
}
var tzList [][]string
scanner := bufio.NewScanner(file)
for scanner.Scan() {
line := scanner.Text()
log.Println(line)
if strings.HasPrefix(line, "#") {
// skip comments
continue
}
parts := strings.Fields(line)
if len(parts) != 2 {
log.Fatalf("Error parsing line\n")
}
tzList = append(tzList, parts)
}
if err := scanner.Err(); err != nil {
log.Fatal(err)
}
err = file.Close()
if err != nil {
panic(err)
}
if len(tzList) > 40 {
log.Fatalf("Too many timezones: %d\n", len(tzList))
}
// Parse font for clock text
font, err := bdf.Parse(options.Font)
if err != nil {
panic(err)
}
log.Printf("Fonts loaded.\n")
// Initialize SDL
if err = sdl.Init(sdl.INIT_EVERYTHING); err != nil {
log.Fatalf("Failed to initialize SDL: %s\n", err)
}
defer sdl.Quit()
if window, err = sdl.CreateWindow(winTitle, sdl.WINDOWPOS_UNDEFINED, sdl.WINDOWPOS_UNDEFINED, winWidth, winHeight, sdl.WINDOW_SHOWN); err != nil {
log.Fatalf("Failed to create window: %s\n", err)
}
defer window.Destroy()
if renderer, err = sdl.CreateRenderer(window, -1, sdl.RENDERER_ACCELERATED); err != nil {
log.Fatalf("Failed to create renderer: %s\n", err)
}
_, err = sdl.ShowCursor(0) // Hide mouse cursor
check(err)
// Clear the screen
err = renderer.Clear()
check(err)
defer renderer.Destroy()
if err = ttf.Init(); err != nil {
panic(err)
}
defer ttf.Quit()
log.Printf("SDL init done\n")
rendererInfo, _ := renderer.GetInfo()
log.Printf("Renderer: %v\n", rendererInfo.Name)
// Clock colors from flags
textSDLColor = sdl.Color{R: options.TextRed, G: options.TextGreen, B: options.TextBlue, A: 255}
staticSDLColor = sdl.Color{R: options.StaticRed, G: options.StaticGreen, B: options.StaticBlue, A: 255}
secSDLColor = sdl.Color{R: options.SecRed, G: options.SecGreen, B: options.SecBlue, A: 255}
// Default color for the OSC field (black)
tallyColor := sdl.Color{R: 0, G: 0, B: 0, A: 255}
var textureSize int32 = 40
textureSize = 5
gridStartX = 32
gridStartY = 32
gridSize = 3
gridSpacing = 4
secCircles = smallSecCircles
staticCircles = smallStaticCircles
setupStaticTexture(textureSize)
setupSecTexture(textureSize)
setupTestTexture()
err = renderer.SetRenderTarget(nil)
check(err)
textureSource = sdl.Rect{X: 0, Y: 0, W: textureSize, H: textureSize}
// Trap SIGINT aka Ctrl-C
sigChan := make(chan os.Signal, 1)
signal.Notify(sigChan, os.Interrupt)
// Cache the second ring texture
ringTexture, err := renderer.CreateTexture(sdl.PIXELFORMAT_RGBA8888, sdl.TEXTUREACCESS_TARGET, dx, dy)
check(err)
err = ringTexture.SetBlendMode(sdl.BLENDMODE_BLEND)
check(err)
// Destination texture for the sub-clocks
clockTexture, _ := renderer.CreateTexture(sdl.PIXELFORMAT_RGBA8888, sdl.TEXTUREACCESS_TARGET, dx, dy)
source := sdl.Rect{
X: 0,
Y: 0,
H: dy,
W: dx,
}
// Create initial bitmaps for clock text
hourBitmap := font.TextBitmap("15")
minuteBitmap := font.TextBitmap("04")
secondBitmap := font.TextBitmap("05")
tallyBitmap := font.TextBitmap(" ")
tzBitmap := font.TextBitmap("ABCD")
updateTicker := time.NewTicker(time.Millisecond * 30)
eventTicker := time.NewTicker(time.Millisecond * 5)
feedBackEngine, err := clock.MakeEngine(options.EngineOptions)
if err != nil {
panic(err)
}
var engOpt = clock.EngineOptions{
Flash: 500,
ListenAddr: "0.0.0.0:1245",
Timeout: 1000,
Connect: "255.255.255.255:1245",
CountdownRed: 255,
CountdownGreen: 0,
CountdownBlue: 0,
DisableOSC: true,
DisableFeedback: true,
}
engines := make([]*clock.Engine, len(tzList))
for i, tz := range tzList {
engOpt.Timezone = tz[0]
engines[i], err = clock.MakeEngine(&engOpt)
if err != nil {
panic(err)
}
}
showTestPicture := false
log.Printf("Entering main loop\n")
for {
select {
case <-sigChan:
// SIGINT received, shutdown gracefully
os.Exit(1)
case <-eventTicker.C:
e := sdl.PollEvent()
switch t := e.(type) {
case *sdl.QuitEvent:
os.Exit(0)
case *sdl.KeyboardEvent:
if t.State == sdl.PRESSED {
showTestPicture = !showTestPicture
}
}
case <-updateTicker.C:
// Clear SDL canvas
err = renderer.SetDrawColor(0, 0, 0, 255) // Black
check(err)
err = renderer.Clear() // Clear screen
check(err)
if showTestPicture {
// Show the test picture.
err = renderer.Copy(testTexture, &sdl.Rect{X: 0, Y: 0, W: 1920, H: 1080}, &sdl.Rect{X: 0, Y: 0, W: 1920, H: 1080})
check(err)
renderer.Present()
continue
}
feedBackEngine.Update()
for i, eng := range engines {
var engine *clock.Engine
if feedBackEngine.TimeOfDay() {
engine = eng
engine.Update()
} else {
engine = feedBackEngine
}
err = renderer.SetRenderTarget(clockTexture)
check(err)
err = renderer.SetDrawColor(0, 0, 0, 255) // Black
check(err)
err = renderer.Clear() // Clear screen
check(err)
target := sdl.Rect{
X: int32(dx * (i % 10)),
Y: int32(dy * (i / 10)),
H: dy,
W: dx,
}
err = renderer.SetDrawColor(0, 0, 0, 255) // Black
check(err)
hourBitmap = font.TextBitmap(engine.Hours)
minuteBitmap = font.TextBitmap(engine.Minutes)
tallyColor = sdl.Color{R: feedBackEngine.TallyRed, G: feedBackEngine.TallyGreen, B: feedBackEngine.TallyBlue, A: 255}
tallyBitmap = font.TextBitmap(feedBackEngine.Tally)
tzBitmap = font.TextBitmap(tzList[i][1])
// Dots between hours and minutes
if engine.Dots {
drawDots()
}
// Draw the text
drawBitmask(hourBitmap, textSDLColor, 10, 0)
drawBitmask(minuteBitmap, textSDLColor, 10, 17)
drawBitmask(tallyBitmap, tallyColor, 0, 2)
tzCoord := 15 - (len(tzBitmap[0]) / 2)
drawBitmask(tzBitmap, textSDLColor, 43, tzCoord)
if i == 0 {
seconds := engine.Leds
secondBitmap = font.TextBitmap(engine.Seconds)
err = renderer.SetRenderTarget(ringTexture)
check(err)
err = renderer.SetDrawColor(0, 0, 0, 0) // Black
check(err)
err = renderer.Clear() // Clear screen
check(err)
drawStaticCircles()
drawSecondCircles(seconds)
if feedBackEngine.DisplaySeconds() {
drawBitmask(secondBitmap, textSDLColor, 21, 8)
}
}
err = renderer.SetRenderTarget(nil)
check(err)
err = renderer.Copy(clockTexture, &source, &target)
check(err)
err = renderer.Copy(ringTexture, &source, &target)
check(err)
}
renderer.Present() // Update the screen
}
}
}
func drawSecondCircles(seconds int) {
// Draw second circles
for i := 0; i <= int(seconds); i++ {
dest := sdl.Rect{X: secCircles[i][0] - 3, Y: secCircles[i][1] - 3, W: 5, H: 5}
err := renderer.Copy(secTexture, &textureSource, &dest)
check(err)
}
}
func drawStaticCircles() {
// Draw static indicator circles
for _, p := range staticCircles {
dest := sdl.Rect{X: p[0] - 3, Y: p[1] - 3, W: 5, H: 5}
err := renderer.Copy(staticTexture, &textureSource, &dest)
check(err)
}
}
func drawDots() {
// Draw the dots between hours and minutes
setPixel(14, 15, textSDLColor)
setPixel(14, 16, textSDLColor)
setPixel(15, 15, textSDLColor)
setPixel(15, 16, textSDLColor)
setPixel(18, 15, textSDLColor)
setPixel(18, 16, textSDLColor)
setPixel(19, 15, textSDLColor)
setPixel(19, 16, textSDLColor)
}
// Set "led matrix" pixel
func setPixel(cy, cx int, color sdl.Color) {
x := gridStartX + int32(cx*gridSpacing)
y := gridStartY + int32(cy*gridSpacing)
rect := sdl.Rect{X: x, Y: y, W: gridSize, H: gridSize}
err := renderer.SetDrawColor(color.R, color.G, color.B, color.A)
check(err)
err = renderer.FillRect(&rect)
check(err)
}
func drawBitmask(bitmask [][]bool, color sdl.Color, r int, c int) {
for y, row := range bitmask {
for x, b := range row {
if b {
setPixel(r+y, c+x, color)
}
}
}
}
func setupTestTexture() {
testTexture, _ = renderer.CreateTexture(sdl.PIXELFORMAT_RGBA8888, sdl.TEXTUREACCESS_TARGET, 1920, 1080)
err := renderer.SetRenderTarget(testTexture)
check(err)
odd := true
var font *ttf.Font
var text *sdl.Surface
var textTexture *sdl.Texture
font, err = ttf.OpenFont("fonts/DejaVuSans.ttf", 120)
check(err)
defer font.Close()
for y := 0; y < 4; y++ {
for x := 0; x < 10; x++ {
rect := sdl.Rect{X: int32(x * dx), Y: int32(y * dy), W: dx, H: dy}
if odd {
err = renderer.SetDrawColor(255, 0, 0, 255)
check(err)
} else {
err = renderer.SetDrawColor(0, 0, 255, 255)
check(err)
}
odd = !odd
err = renderer.DrawRect(&rect)
check(err)
err = renderer.SetDrawColor(255, 255, 255, 255)
check(err)
text, err = font.RenderUTF8Blended(strconv.Itoa(1+x+(y*10)), sdl.Color{R: 255, G: 255, B: 255, A: 255})
defer text.Free()
check(err)
textX := int32((x*dx)+(dx/2)) - (text.W / 2)
textY := int32((y*dy)+(dy/2)) - (text.H / 2)
textTexture, _ = renderer.CreateTextureFromSurface(text)
defer textTexture.Destroy()
err = renderer.Copy(textTexture, &sdl.Rect{X: 0, Y: 0, W: text.W, H: text.H}, &sdl.Rect{X: textX, Y: textY, W: text.W, H: text.H})
check(err)
}
odd = !odd
}
}
func setupSecTexture(textureSize int32) {
var err error
secTexture, err = renderer.CreateTexture(sdl.PIXELFORMAT_RGBA8888, sdl.TEXTUREACCESS_TARGET, textureSize, textureSize)
check(err)
err = secTexture.SetBlendMode(sdl.BLENDMODE_BLEND)
check(err)
err = renderer.SetRenderTarget(secTexture)
check(err)
err = renderer.SetDrawColor(secSDLColor.R, secSDLColor.G, secSDLColor.B, 255)
check(err)
for _, point := range circlePixels {
if err := renderer.DrawPoint(point[0], point[1]); err != nil {
panic(err)
}
}
}
func setupStaticTexture(textureSize int32) {
var err error
staticTexture, err = renderer.CreateTexture(sdl.PIXELFORMAT_RGBA8888, sdl.TEXTUREACCESS_TARGET, textureSize, textureSize)
check(err)
err = staticTexture.SetBlendMode(sdl.BLENDMODE_BLEND)
check(err)
err = renderer.SetRenderTarget(staticTexture)
check(err)
err = renderer.SetDrawColor(staticSDLColor.R, staticSDLColor.G, staticSDLColor.B, 255)
check(err)
for _, point := range circlePixels {
if err := renderer.DrawPoint(point[0], point[1]); err != nil {
panic(err)
}
}
}
func check(err error) {
if err != nil {
panic(err)
}
}