forked from emilevs/label_printer
68 lines
1.5 KiB
Go
68 lines
1.5 KiB
Go
package main
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import (
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"fmt"
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"image"
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_ "image/gif"
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_ "image/jpeg"
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_ "image/png"
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"log"
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"os"
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_ "github.com/jbuchbinder/gopnm"
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_ "golang.org/x/image/webp"
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"github.com/lestrrat-go/dither"
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"github.com/nfnt/resize"
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"git.sr.ht/~guacamolie/faxmachine/escpos"
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"git.sr.ht/~guacamolie/faxmachine/escpos/protocol"
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)
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func main() {
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p, err := escpos.StartUSBPrinter(os.Args[1], protocol.TMT88IV, escpos.FlagNone)
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if err != nil {
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log.Fatalf("failed to start printer: %v\n", err)
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}
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defer p.Close()
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if err := p.EnableASB(protocol.ASBReportAll); err != nil {
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log.Fatalf("failed to enable ASB: %v\n", err)
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}
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go func() {
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for status := range p.ASBStatus() {
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log.Printf("received ASB status: %#v\n", status)
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}
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}()
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img, _, err := image.Decode(os.Stdin)
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if err != nil {
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log.Fatalf("failed to get decode image: %v\n", err)
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}
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img = resize.Resize(512, 0, img, resize.Lanczos3)
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img = dither.Monochrome(dither.FloydSteinberg, img, 1.18)
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if err := p.SetEncoding(escpos.CharPagePC427); err != nil {
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log.Fatalf("failed to set encoding: %v\n", err)
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}
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if err := p.SetPrintSpeed(5); err != nil {
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log.Fatalf("failed to set print speed: %v\n", err)
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}
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if err := p.PrintImage(img); err != nil {
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log.Fatalf("failed to print image: %v\n", err)
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}
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if len(os.Args) > 2 && os.Args[2] != "" {
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fmt.Fprintf(p, "\n%s\n", os.Args[2])
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}
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fmt.Fprint(p, "\n\n\n")
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if err := p.CutPaper(); err != nil {
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log.Fatalf("failed to cut paper: %v", err)
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}
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if err := p.Wait(); err != nil {
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log.Fatalf("failed to print: %v\n", err)
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}
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}
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