split files

This commit is contained in:
Gabriel Augendre 2024-09-15 09:01:13 +02:00
parent 39ae5c613e
commit 8be7b20062
7 changed files with 311 additions and 171 deletions

130
.gitignore vendored Normal file
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@ -0,0 +1,130 @@
### JetBrains template
# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
# User-specific stuff
.idea/**/workspace.xml
.idea/**/tasks.xml
.idea/**/usage.statistics.xml
.idea/**/dictionaries
.idea/**/shelf
# AWS User-specific
.idea/**/aws.xml
# Generated files
.idea/**/contentModel.xml
# Sensitive or high-churn files
.idea/**/dataSources/
.idea/**/dataSources.ids
.idea/**/dataSources.local.xml
.idea/**/sqlDataSources.xml
.idea/**/dynamic.xml
.idea/**/uiDesigner.xml
.idea/**/dbnavigator.xml
# Gradle
.idea/**/gradle.xml
.idea/**/libraries
# Gradle and Maven with auto-import
# When using Gradle or Maven with auto-import, you should exclude module files,
# since they will be recreated, and may cause churn. Uncomment if using
# auto-import.
# .idea/artifacts
# .idea/compiler.xml
# .idea/jarRepositories.xml
# .idea/modules.xml
# .idea/*.iml
# .idea/modules
# *.iml
# *.ipr
# CMake
cmake-build-*/
# Mongo Explorer plugin
.idea/**/mongoSettings.xml
# File-based project format
*.iws
# IntelliJ
out/
# mpeltonen/sbt-idea plugin
.idea_modules/
# JIRA plugin
atlassian-ide-plugin.xml
# Cursive Clojure plugin
.idea/replstate.xml
# SonarLint plugin
.idea/sonarlint/
# Crashlytics plugin (for Android Studio and IntelliJ)
com_crashlytics_export_strings.xml
crashlytics.properties
crashlytics-build.properties
fabric.properties
# Editor-based Rest Client
.idea/httpRequests
# Android studio 3.1+ serialized cache file
.idea/caches/build_file_checksums.ser
### Go template
# If you prefer the allow list template instead of the deny list, see community template:
# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
#
# Binaries for programs and plugins
*.exe
*.exe~
*.dll
*.so
*.dylib
# Test binary, built with `go test -c`
*.test
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# Dependency directories (remove the comment below to include it)
# vendor/
# Go workspace file
go.work
### macOS template
# General
.DS_Store
.AppleDouble
.LSOverride
# Icon must end with two \r
Icon
# Thumbnails
._*
# Files that might appear in the root of a volume
.DocumentRevisions-V100
.fseventsd
.Spotlight-V100
.TemporaryItems
.Trashes
.VolumeIcon.icns
.com.apple.timemachine.donotpresent
# Directories potentially created on remote AFP share
.AppleDB
.AppleDesktop
Network Trash Folder
Temporary Items
.apdisk

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@ -74,7 +74,7 @@ func New() (*EPD, error) {
return epd, nil return epd, nil
} }
func (e *EPD) TurnOff() error { func (e *EPD) turnOff() error {
log.Println("turning off...") log.Println("turning off...")
if err := e.spiReg.Close(); err != nil { if err := e.spiReg.Close(); err != nil {
return fmt.Errorf("closing SPI: %w", err) return fmt.Errorf("closing SPI: %w", err)
@ -220,26 +220,12 @@ func (e *EPD) InitFast() {
func (e *EPD) Clear() { func (e *EPD) Clear() {
log.Println("clearing epd") log.Println("clearing epd")
redBuf := make([]byte, Width*Height/8) e.Fill(White)
for i := range redBuf {
redBuf[i] = 0x00
}
blackBuf := make([]byte, Width*Height/8) //e.Refresh()
for i := range blackBuf {
blackBuf[i] = 0xff
}
e.sendCommand(0x10)
e.sendDataSlice(blackBuf)
e.sendCommand(0x13)
e.sendDataSlice(redBuf)
//e.refresh()
} }
func (e *EPD) refresh() { func (e *EPD) Refresh() {
log.Println("refreshing...") log.Println("refreshing...")
e.sendCommand(0x12) e.sendCommand(0x12)
time.Sleep(100 * time.Millisecond) time.Sleep(100 * time.Millisecond)
@ -255,7 +241,7 @@ func (e *EPD) Sleep() error {
e.sendData(0xa5) e.sendData(0xa5)
time.Sleep(2 * time.Second) time.Sleep(2 * time.Second)
if err := e.TurnOff(); err != nil { if err := e.turnOff(); err != nil {
return fmt.Errorf("turning off: %w", err) return fmt.Errorf("turning off: %w", err)
} }
@ -271,19 +257,19 @@ const (
) )
func (e *EPD) Fill(c Color) { func (e *EPD) Fill(c Color) {
log.Println("filling... (not doing anything yet)") log.Println("filling...")
//switch c { switch c {
//case White: case White:
// e.Draw(nil, nil) e.Send(image.White, image.Black)
//case Black: case Black:
// e.Draw(image.Black, nil) e.Send(image.Black, image.Black)
//case Red: case Red:
// e.Draw(nil, image.Black) e.Send(image.White, image.White)
//} }
} }
func (e *EPD) Draw(black image.Image, red image.Image) { func (e *EPD) Send(black image.Image, red image.Image) {
log.Println("drawing...") log.Println("drawing...")
if black != nil { if black != nil {
log.Println("sending black") log.Println("sending black")
@ -295,9 +281,6 @@ func (e *EPD) Draw(black image.Image, red image.Image) {
e.sendCommand(0x13) // write red data e.sendCommand(0x13) // write red data
e.sendImg(red) e.sendImg(red)
} }
if black != nil || red != nil {
e.refresh()
}
} }
func (e *EPD) sendImg(img image.Image) { func (e *EPD) sendImg(img image.Image) {

21
font.go Normal file
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@ -0,0 +1,21 @@
package main
import (
"fmt"
"github.com/golang/freetype/truetype"
"github.com/llgcode/draw2d"
)
type MyFontCache map[string]*truetype.Font
func (fc MyFontCache) Store(fd draw2d.FontData, font *truetype.Font) {
fc[fd.Name] = font
}
func (fc MyFontCache) Load(fd draw2d.FontData) (*truetype.Font, error) {
font, stored := fc[fd.Name]
if !stored {
return nil, fmt.Errorf("font %s is not stored in font cache", fd.Name)
}
return font, nil
}

72
img.go Normal file
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@ -0,0 +1,72 @@
package main
import (
"github.com/Crocmagnon/display-epaper/epd"
"github.com/llgcode/draw2d"
"github.com/llgcode/draw2d/draw2dimg"
"image"
"image/color"
)
func getBlack() (*image.RGBA, error) {
img := newWhite()
gc := draw2dimg.NewGraphicContext(img)
gc.SetFillColor(color.RGBA{0, 0, 0, 255})
gc.SetStrokeColor(color.RGBA{0, 0, 0, 255})
gc.SetLineWidth(2)
text(gc, "Hello, world", 18, 110, 50)
return img, nil
}
func getRed() (*image.RGBA, error) {
img := newBlack()
gc := draw2dimg.NewGraphicContext(img)
gc.SetFillColor(color.RGBA{0, 0, 0, 255})
gc.SetStrokeColor(color.RGBA{255, 255, 255, 255})
gc.SetLineWidth(2)
rect(gc, 10, 10, 50, 50)
rect(gc, 60, 10, 100, 50)
return img, nil
}
func text(gc *draw2dimg.GraphicContext, s string, size, x, y float64) {
gc.SetFontData(draw2d.FontData{Name: fontName})
gc.SetFontSize(size)
gc.StrokeStringAt(s, x, y)
}
func newWhite() *image.RGBA {
img := image.NewRGBA(image.Rect(0, 0, epd.Width, epd.Height))
for y := 0; y < epd.Height; y++ {
for x := 0; x < epd.Width; x++ {
img.Set(x, y, color.White)
}
}
return img
}
func newBlack() *image.RGBA {
img := image.NewRGBA(image.Rect(0, 0, epd.Width, epd.Height))
for y := 0; y < epd.Height; y++ {
for x := 0; x < epd.Width; x++ {
img.Set(x, y, color.Black)
}
}
return img
}
func rect(gc *draw2dimg.GraphicContext, x1, y1, x2, y2 float64) {
gc.BeginPath()
gc.MoveTo(x1, y1)
gc.LineTo(x2, y1)
gc.LineTo(x2, y2)
gc.LineTo(x1, y2)
gc.Close()
gc.FillStroke()
}

141
main.go
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@ -1,18 +1,11 @@
package main package main
import ( import (
"fmt"
"github.com/Crocmagnon/display-epaper/epd"
"github.com/golang/freetype/truetype" "github.com/golang/freetype/truetype"
"github.com/llgcode/draw2d" "github.com/llgcode/draw2d"
"github.com/llgcode/draw2d/draw2dimg"
_ "golang.org/x/image/bmp" _ "golang.org/x/image/bmp"
"golang.org/x/image/font/gofont/goregular" "golang.org/x/image/font/gofont/goregular"
"image"
"image/color"
"log" "log"
"os"
"periph.io/x/host/v3"
) )
const fontName = "default" const fontName = "default"
@ -28,139 +21,9 @@ func main() {
fontCache.Store(draw2d.FontData{Name: fontName}, font) fontCache.Store(draw2d.FontData{Name: fontName}, font)
draw2d.SetFontCache(fontCache) draw2d.SetFontCache(fontCache)
if len(os.Args) < 2 { if err := run(); err != nil {
if err := run(); err != nil { log.Fatal("error: ", err)
log.Fatal("error: ", err)
}
} else {
img, err := getBlack()
if err != nil {
log.Fatal(err)
}
draw2dimg.SaveToPngFile("black.png", img)
img, err = getRed()
if err != nil {
log.Fatal(err)
}
draw2dimg.SaveToPngFile("red.png", img)
} }
log.Println("done") log.Println("done")
} }
func run() error {
_, err := host.Init()
if err != nil {
return fmt.Errorf("initializing host: %w", err)
}
display, err := epd.New()
if err != nil {
return fmt.Errorf("initializing epd: %w", err)
}
//display.Init()
display.InitFast()
display.Clear()
black, err := getBlack()
if err != nil {
return fmt.Errorf("getting black: %w", err)
}
red, err := getRed()
if err != nil {
return fmt.Errorf("getting red: %w", err)
}
display.Draw(black, red)
log.Println("sleeping...")
if err := display.Sleep(); err != nil {
return fmt.Errorf("sleeping: %w", err)
}
log.Println("done")
return nil
}
func getBlack() (*image.RGBA, error) {
img := newWhite()
gc := draw2dimg.NewGraphicContext(img)
gc.SetFillColor(color.RGBA{0, 0, 0, 255})
gc.SetStrokeColor(color.RGBA{0, 0, 0, 255})
gc.SetLineWidth(2)
text(gc, "Hello, world", 18, 110, 50)
return img, nil
}
func getRed() (*image.RGBA, error) {
img := newBlack()
gc := draw2dimg.NewGraphicContext(img)
gc.SetFillColor(color.RGBA{0, 0, 0, 255})
gc.SetStrokeColor(color.RGBA{255, 255, 255, 255})
gc.SetLineWidth(2)
rect(gc, 10, 10, 50, 50)
rect(gc, 60, 10, 100, 50)
return img, nil
}
func text(gc *draw2dimg.GraphicContext, s string, size, x, y float64) {
gc.SetFontData(draw2d.FontData{Name: fontName})
gc.SetFontSize(size)
gc.StrokeStringAt(s, x, y)
}
func newWhite() *image.RGBA {
img := image.NewRGBA(image.Rect(0, 0, epd.Width, epd.Height))
for y := 0; y < epd.Height; y++ {
for x := 0; x < epd.Width; x++ {
img.Set(x, y, color.White)
}
}
return img
}
func newBlack() *image.RGBA {
img := image.NewRGBA(image.Rect(0, 0, epd.Width, epd.Height))
for y := 0; y < epd.Height; y++ {
for x := 0; x < epd.Width; x++ {
img.Set(x, y, color.Black)
}
}
return img
}
func rect(gc *draw2dimg.GraphicContext, x1, y1, x2, y2 float64) {
gc.BeginPath()
gc.MoveTo(x1, y1)
gc.LineTo(x2, y1)
gc.LineTo(x2, y2)
gc.LineTo(x1, y2)
gc.Close()
gc.FillStroke()
}
type MyFontCache map[string]*truetype.Font
func (fc MyFontCache) Store(fd draw2d.FontData, font *truetype.Font) {
fc[fd.Name] = font
}
func (fc MyFontCache) Load(fd draw2d.FontData) (*truetype.Font, error) {
font, stored := fc[fd.Name]
if !stored {
return nil, fmt.Errorf("font %s is not stored in font cache", fd.Name)
}
return font, nil
}

24
run_darwin_arm64.go Normal file
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@ -0,0 +1,24 @@
package main
import (
"github.com/llgcode/draw2d/draw2dimg"
"log"
)
func run() error {
img, err := getBlack()
if err != nil {
log.Fatal(err)
}
draw2dimg.SaveToPngFile("out/black.png", img)
img, err = getRed()
if err != nil {
log.Fatal(err)
}
draw2dimg.SaveToPngFile("out/red.png", img)
log.Println("done")
return nil
}

47
run_linux_arm64.go Normal file
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@ -0,0 +1,47 @@
package main
import (
"fmt"
"github.com/Crocmagnon/display-epaper/epd"
"log"
"periph.io/x/host/v3"
)
func run() error {
_, err := host.Init()
if err != nil {
return fmt.Errorf("initializing host: %w", err)
}
display, err := epd.New()
if err != nil {
return fmt.Errorf("initializing epd: %w", err)
}
display.Init()
//display.InitFast()
display.Clear()
display.Refresh()
black, err := getBlack()
if err != nil {
return fmt.Errorf("getting black: %w", err)
}
red, err := getRed()
if err != nil {
return fmt.Errorf("getting red: %w", err)
}
display.Send(black, red)
log.Println("sleeping...")
if err := display.Sleep(); err != nil {
return fmt.Errorf("sleeping: %w", err)
}
log.Println("done")
return nil
}