cittadhammo
commented
5 months ago yes ! it works !!!
I fixed the screen.go file with the help of phind.com and getting rid of the 4 errors. The replacement screener/screen.go file is :
package screener
import (
"bytes"
"image"
"math"
"github.com/fogleman/gg"
"github.com/olup/kobowriter/matrix"
"github.com/shermp/go-fbink-v2/gofbink"
)
type Screen struct {
originalMatrix matrix.Matrix
presentMatrix matrix.Matrix
fb *gofbink.FBInk
state gofbink.FBInkState
Width int
Height int
fontType string
ttSize int
}
var dc = gg.NewContext(25, 40)
var charCache = map[string][]byte{}
func InitScreen() (s *Screen) {
s = &Screen{}
s.fontType = "bitmap"
s.state = gofbink.FBInkState{}
fbinkOpts := gofbink.FBInkConfig{}
rOpts := gofbink.RestrictedConfig{
Fontmult: 3,
Fontname: gofbink.Ctrld,
}
s.fb = gofbink.New(&fbinkOpts, &rOpts)
s.fb.Open()
s.fb.Init(&fbinkOpts)
s.fb.AddOTfont("/mnt/onboard/.adds/kobowriter/inc.ttf", gofbink.FntRegular)
s.fb.GetState(&fbinkOpts, &s.state)
// clear screen on initialisation
s.ClearFlash()
if s.fontType == "truetype" {
dc.LoadFontFace("inc.ttf", 96)
s.ttSize = 40
s.Width = int(s.state.ScreenWidth) / ((s.ttSize / 5) * 3)
s.Height = int(s.state.ScreenHeight) / s.ttSize
} else {
s.Width = int(s.state.MaxCols)
s.Height = int(s.state.MaxRows)
}
s.presentMatrix = matrix.CreateNewMatrix(s.Width, s.Height)
s.originalMatrix = matrix.CreateNewMatrix(s.Width, s.Height)
println("Screen struct inited")
return
}
func (s *Screen) Clean() {
s.fb.Close()
}
func (s *Screen) Print(matrix matrix.Matrix) {
printDiff(s.presentMatrix, matrix, s.fb, s.fontType, s.ttSize)
s.presentMatrix = matrix
}
func same(a matrix.MatrixElement, b matrix.MatrixElement) bool {
return a.Content == b.Content && a.IsInverted == b.IsInverted
}
func printDiff(previous matrix.Matrix, next matrix.Matrix, fb *gofbink.FBInk, fontType string, ttSize int) {
for i := range previous {
for j := range previous[i] {
if !same(previous[i][j], next[i][j]) {
if fontType == "truetype" {
ttWidth := ((ttSize / 5) * 3)
fb.ClearScreen(&gofbink.FBInkConfig{
IsInverted: next[i][j].IsInverted,
NoRefresh: true,
})
fb.PrintOT(string(next[i][j].Content), &gofbink.FBInkOTConfig{
Margins: struct {
Top int16
Bottom int16
Left int16
Right int16
}{
Top: int16(i * ttSize),
Left: int16(j * ttWidth),
},
SizePx: uint16(ttSize),
IsFormatted: false,
}, &gofbink.FBInkConfig{IsInverted: next[i][j].IsInverted, NoRefresh: true})
} else {
fb.FBprint(string(next[i][j].Content), &gofbink.FBInkConfig{
Row: int16(i),
Col: int16(j),
NoRefresh: true,
IsInverted: next[i][j].IsInverted,
})
}
}
}
}
fb.Refresh(0, 0, 0, 0, gofbink.DitherFloydSteingberg ,&gofbink.FBInkConfig{})
}
func (s *Screen) PrintPng(imgBytes []byte, w int, h int, x int, y int) {
img, _, _ := image.Decode(bytes.NewReader(imgBytes))
buffer, _ := getPixelsFromImage(img)
s.fb.PrintRawData(buffer, w, h, uint16(x), uint16(y), &gofbink.FBInkConfig{})
}
func getCharImage(s string) []byte {
if char, ok := charCache[s]; ok {
return char
} else {
dc.SetRGB(1, 1, 1)
dc.Clear()
dc.SetRGB(0, 0, 0)
dc.DrawString(s, 0, 35)
img := dc.Image()
buffer, _ := getPixelsFromImage(img)
charCache[s] = buffer
return buffer
}
}
func (s *Screen) PrintAlert(message string, width int) {
thisMatrix := matrix.CreateMatrixFromText(message, width)
x := math.Floor((float64(s.state.MaxCols)/2)-float64(width)/2) - 1
y := math.Floor((float64(s.state.MaxRows)/2)-float64(len(thisMatrix))/2) - 1
outerMatrix := matrix.CreateNewMatrix(width+2, len(thisMatrix)+2)
thisMatrix = matrix.PasteMatrix(outerMatrix, thisMatrix, 1, 1)
thisMatrix = matrix.InverseMatrix(thisMatrix)
s.Print(matrix.PasteMatrix(s.originalMatrix, thisMatrix, int(x), int(y)))
}
func (s *Screen) Clear() {
s.fb.ClearScreen(&gofbink.FBInkConfig{})
s.presentMatrix = matrix.FillMatrix(s.presentMatrix, ' ')
}
func (s *Screen) ClearFlash() {
s.fb.ClearScreen(&gofbink.FBInkConfig{IsFlashing: true})
s.presentMatrix = matrix.FillMatrix(s.presentMatrix, ' ')
}
func (s *Screen) RefreshFlash() {
presenMatrix := s.presentMatrix
s.ClearFlash()
s.Print(presenMatrix)
}
func (s *Screen) GetOriginalMatrix() matrix.Matrix {
return matrix.CopyMatrix(s.originalMatrix)
}
and then the kobowriter file gets created in the build folder and you just need to replace it with the one in .adds/kobowriter/ ;-)
I need to tweek my keyboard key layout, but it is good to have a qwerty !
PS:
- For those interested. You can access your files via computer from XCsoar directly, go to system -> export to USB and plug it to your computer.
- I am still looking how to add Koreader to the tools menu (so that I don't have to log into Nickel to go to Koreader, I never use Nickel, but use Koreader all the time)
- The screen on my kobo touch 2.0 is vertical. It would be nice to have the rotation at 90 deg and with a smaller font as well. I will see if I can do that in the future.
Dear @olup,
I finally put my hand on a machine where I was able to install Linux.
I have successfully built the KOReader Cross Compile ToolChains , by running the gen-tc.sh file, which took more than 2 hours:
I have run the:
to set up the environment.
After installing golang-go via apt, when I run the make file, I have the following error:
I can try to correct these small errors in the code, but I am wondering if I am not doing something else wrong.
Thank you.