Add tmemo_converter

This commit is contained in:
Takumi Sueda 2022-05-07 16:09:51 +09:00
parent 84b99e95d7
commit 566ca3cc75
3 changed files with 88 additions and 0 deletions

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- [read_keys_SH3.c](read_keys_SH3.c) Scan key matrix and return key name rewritten with C. nice performance - [read_keys_SH3.c](read_keys_SH3.c) Scan key matrix and return key name rewritten with C. nice performance
- [x1](x1) Executable to analyze `[JHSBA]1` gen - [x1](x1) Executable to analyze `[JHSBA]1` gen
- [lcdbench](lcdbench) Benchmark fb0 fill and show results - [lcdbench](lcdbench) Benchmark fb0 fill and show results
- [tmemo_converter](tmemo_converter) Converts 手書き暗記メモ into PNGs (2G or older)
### License ### License

16
tmemo_converter/README.md Normal file
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### Prerequisites
- Go 1.1x
### Run
```shell-session
$ # Example 1
$ go run main.go tmemo000.tmd
$ # Example 2
$ go run main.go tmemo000.tmd tmemo001.tmd
$ # Example 3
$ go run main.go *.tmd
```

71
tmemo_converter/main.go Normal file
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package main
import (
"fmt"
"image"
"image/color"
"image/png"
"io/ioutil"
"os"
)
const (
bytesPerPixel = 2
width = 480
height = 320
toolbarHeight = 16
actualHeight = height - toolbarHeight
total = width * actualHeight * bytesPerPixel
)
func main() {
if len(os.Args) == 1 {
fmt.Printf("Usage: %s INPUT ...\n", os.Args[0])
fmt.Printf("Example: %s tmemo000.tmd tmemo001.tmd\n", os.Args[0])
os.Exit(0)
}
for _, a := range os.Args[1:] {
err := convert(a)
if err != nil {
fmt.Fprintf(os.Stderr, "failed to convert %s: %s\n", a, err)
os.Exit(1)
}
}
}
func convert(fn string) error {
raw, err := ioutil.ReadFile(fn)
if err != nil {
return fmt.Errorf("failed to read %s: %s", fn, err)
}
if len(raw) != total {
return fmt.Errorf("unexpected binary length: expect=%d, actual=%d", total, len(raw))
}
rgba := image.NewRGBA(image.Rect(0, 0, width, actualHeight))
for i := 0; i < width*actualHeight; i++ {
pixel := uint16(raw[i*2+1])<<8 + uint16(raw[i*2])
r := float64(pixel&0xf800>>11) * 255 / 31
g := float64(pixel&0x07e0>>5) * 255 / 63
b := float64(pixel&0x001f) * 255 / 31
rgba.SetRGBA(i%width, actualHeight-i/width, color.RGBA{R: uint8(r), G: uint8(g), B: uint8(b), A: 255})
}
newFn := fn + ".png"
out, err := os.Create(newFn)
if err != nil {
return fmt.Errorf("failed to create a file %s: %s", newFn, err)
}
defer out.Close()
err = png.Encode(out, rgba)
if err != nil {
return fmt.Errorf("failed to compress the image into PNG: %s", err)
}
return nil
}