88 lines
2.1 KiB
Go
88 lines
2.1 KiB
Go
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package remapping
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type RGBcolor = [3]byte
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func Even(number int) bool {
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return number %2 == 0
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}
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func Slice512(s []byte) [512]byte {
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var ret [512]byte
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for i := range s {
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if i < 512 {
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ret[i] = s[i]
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}
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}
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return ret
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}
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func SliceUnlenthed(s [512]byte) []byte {
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ret := make([]byte, 512)
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for i := range s {
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ret[i] = s[i]
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}
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return ret
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}
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func SliceRearrange(rowwidth int, rows int, alternaterows bool, inslice []byte) [][]byte {
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var flippedslice []byte
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if alternaterows {
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flippedslice = make([]byte, len(inslice)+3)
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for r := 0; r < rows; r++ {
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rowzero := (r * rowwidth * 3)
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if Even(r) {
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for c := 0; c < (rowwidth)*3; c += 3 {
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flippedslice[rowzero+c] = inslice[rowzero+c]
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flippedslice[rowzero+c+1] = inslice[rowzero+c+1]
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flippedslice[rowzero+c+2] = inslice[rowzero+c+2]
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}
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} else {
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x := rowwidth * 3
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for c := 0; c < (rowwidth)*3; c += 3 {
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x = x - 3
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flippedslice[rowzero+x] = inslice[rowzero+c]
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flippedslice[rowzero+x+1] = inslice[rowzero+c+1]
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flippedslice[rowzero+x+2] = inslice[rowzero+c+2]
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}
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}
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}
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} else {
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flippedslice = inslice
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}
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currentUniverse := 0
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currentUniversePosition := 0
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universes := make([][]byte, (len(flippedslice)/510)+1)
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currentUniverseSlice := make([]byte, 511)
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currentRowReverse := false
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for i := range flippedslice {
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if currentUniversePosition >= 510 {
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universes[currentUniverse] = currentUniverseSlice
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if !currentRowReverse {
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currentRowReverse = true
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} else {
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currentRowReverse = false
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}
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currentUniverse += 1
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currentUniversePosition = 0
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currentUniverseSlice = make([]byte, 511)
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}
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currentUniverseSlice[currentUniversePosition] = flippedslice[i]
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currentUniversePosition += 1
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}
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universes[currentUniverse] = currentUniverseSlice
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return universes
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}
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func XYGridToLinear(w int, h int, grid [][]RGBcolor) []byte {
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ret := make([]byte, w*h*3)
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i := 0
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for y := 0; y < h; y++ {
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for x := 0; x < w; x++ {
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ret[i] = grid[x][y][0]
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ret[i+1] = grid[x][y][1]
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ret[i+2] = grid[x][y][2]
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i += 3
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}
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}
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return ret
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}
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