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Split out codes

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This commit is contained in:
Ian Gulliver
2023-12-29 12:52:34 -08:00
parent 77fc700dc9
commit cb38c7581c
3 changed files with 272 additions and 267 deletions
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265
codes.go
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@@ -1,265 +0,0 @@
package coding
type code struct {
value uint16
bits int
}
var codes = [256]code{
{value: 0b0000, bits: 4},
{value: 0b0001, bits: 4},
{value: 0b00100, bits: 5},
{value: 0b00101, bits: 5},
{value: 0b00110, bits: 5},
{value: 0b00111, bits: 5},
{value: 0b01000, bits: 5},
{value: 0b01001, bits: 5},
{value: 0b01010, bits: 5},
{value: 0b01011, bits: 5},
{value: 0b011000, bits: 6},
{value: 0b011001, bits: 6},
{value: 0b011010, bits: 6},
{value: 0b011011, bits: 6},
{value: 0b011100, bits: 6},
{value: 0b011101, bits: 6},
{value: 0b011110, bits: 6},
{value: 0b011111, bits: 6},
{value: 0b1000000, bits: 7},
{value: 0b1000001, bits: 7},
{value: 0b1000010, bits: 7},
{value: 0b1000011, bits: 7},
{value: 0b1000100, bits: 7},
{value: 0b1000101, bits: 7},
{value: 0b1000110, bits: 7},
{value: 0b1000111, bits: 7},
{value: 0b1001000, bits: 7},
{value: 0b1001001, bits: 7},
{value: 0b1001010, bits: 7},
{value: 0b1001011, bits: 7},
{value: 0b1001100, bits: 7},
{value: 0b1001101, bits: 7},
{value: 0b1001110, bits: 7},
{value: 0b1001111, bits: 7},
{value: 0b10100000, bits: 8},
{value: 0b10100001, bits: 8},
{value: 0b10100010, bits: 8},
{value: 0b10100011, bits: 8},
{value: 0b10100100, bits: 8},
{value: 0b10100101, bits: 8},
{value: 0b10100110, bits: 8},
{value: 0b10100111, bits: 8},
{value: 0b10101000, bits: 8},
{value: 0b10101001, bits: 8},
{value: 0b10101010, bits: 8},
{value: 0b10101011, bits: 8},
{value: 0b10101100, bits: 8},
{value: 0b10101101, bits: 8},
{value: 0b10101110, bits: 8},
{value: 0b10101111, bits: 8},
{value: 0b10110000, bits: 8},
{value: 0b10110001, bits: 8},
{value: 0b10110010, bits: 8},
{value: 0b10110011, bits: 8},
{value: 0b10110100, bits: 8},
{value: 0b10110101, bits: 8},
{value: 0b10110110, bits: 8},
{value: 0b10110111, bits: 8},
{value: 0b10111000, bits: 8},
{value: 0b10111001, bits: 8},
{value: 0b10111010, bits: 8},
{value: 0b10111011, bits: 8},
{value: 0b10111100, bits: 8},
{value: 0b10111101, bits: 8},
{value: 0b10111110, bits: 8},
{value: 0b10111111, bits: 8},
{value: 0b110000000, bits: 9},
{value: 0b110000001, bits: 9},
{value: 0b110000010, bits: 9},
{value: 0b110000011, bits: 9},
{value: 0b110000100, bits: 9},
{value: 0b110000101, bits: 9},
{value: 0b110000110, bits: 9},
{value: 0b110000111, bits: 9},
{value: 0b110001000, bits: 9},
{value: 0b110001001, bits: 9},
{value: 0b110001010, bits: 9},
{value: 0b110001011, bits: 9},
{value: 0b110001100, bits: 9},
{value: 0b110001101, bits: 9},
{value: 0b110001110, bits: 9},
{value: 0b110001111, bits: 9},
{value: 0b110010000, bits: 9},
{value: 0b110010001, bits: 9},
{value: 0b110010010, bits: 9},
{value: 0b110010011, bits: 9},
{value: 0b110010100, bits: 9},
{value: 0b110010101, bits: 9},
{value: 0b110010110, bits: 9},
{value: 0b110010111, bits: 9},
{value: 0b110011000, bits: 9},
{value: 0b110011001, bits: 9},
{value: 0b110011010, bits: 9},
{value: 0b110011011, bits: 9},
{value: 0b110011100, bits: 9},
{value: 0b110011101, bits: 9},
{value: 0b110011110, bits: 9},
{value: 0b110011111, bits: 9},
{value: 0b110100000, bits: 9},
{value: 0b110100001, bits: 9},
{value: 0b110100010, bits: 9},
{value: 0b110100011, bits: 9},
{value: 0b110100100, bits: 9},
{value: 0b110100101, bits: 9},
{value: 0b110100110, bits: 9},
{value: 0b110100111, bits: 9},
{value: 0b110101000, bits: 9},
{value: 0b110101001, bits: 9},
{value: 0b110101010, bits: 9},
{value: 0b110101011, bits: 9},
{value: 0b110101100, bits: 9},
{value: 0b110101101, bits: 9},
{value: 0b110101110, bits: 9},
{value: 0b110101111, bits: 9},
{value: 0b110110000, bits: 9},
{value: 0b110110001, bits: 9},
{value: 0b110110010, bits: 9},
{value: 0b110110011, bits: 9},
{value: 0b110110100, bits: 9},
{value: 0b110110101, bits: 9},
{value: 0b110110110, bits: 9},
{value: 0b110110111, bits: 9},
{value: 0b110111000, bits: 9},
{value: 0b110111001, bits: 9},
{value: 0b110111010, bits: 9},
{value: 0b110111011, bits: 9},
{value: 0b110111100, bits: 9},
{value: 0b110111101, bits: 9},
{value: 0b110111110, bits: 9},
{value: 0b110111111, bits: 9},
{value: 0b1110000000, bits: 10},
{value: 0b1110000001, bits: 10},
{value: 0b1110000010, bits: 10},
{value: 0b1110000011, bits: 10},
{value: 0b1110000100, bits: 10},
{value: 0b1110000101, bits: 10},
{value: 0b1110000110, bits: 10},
{value: 0b1110000111, bits: 10},
{value: 0b1110001000, bits: 10},
{value: 0b1110001001, bits: 10},
{value: 0b1110001010, bits: 10},
{value: 0b1110001011, bits: 10},
{value: 0b1110001100, bits: 10},
{value: 0b1110001101, bits: 10},
{value: 0b1110001110, bits: 10},
{value: 0b1110001111, bits: 10},
{value: 0b1110010000, bits: 10},
{value: 0b1110010001, bits: 10},
{value: 0b1110010010, bits: 10},
{value: 0b1110010011, bits: 10},
{value: 0b1110010100, bits: 10},
{value: 0b1110010101, bits: 10},
{value: 0b1110010110, bits: 10},
{value: 0b1110010111, bits: 10},
{value: 0b1110011000, bits: 10},
{value: 0b1110011001, bits: 10},
{value: 0b1110011010, bits: 10},
{value: 0b1110011011, bits: 10},
{value: 0b1110011100, bits: 10},
{value: 0b1110011101, bits: 10},
{value: 0b1110011110, bits: 10},
{value: 0b1110011111, bits: 10},
{value: 0b1110100000, bits: 10},
{value: 0b1110100001, bits: 10},
{value: 0b1110100010, bits: 10},
{value: 0b1110100011, bits: 10},
{value: 0b1110100100, bits: 10},
{value: 0b1110100101, bits: 10},
{value: 0b1110100110, bits: 10},
{value: 0b1110100111, bits: 10},
{value: 0b1110101000, bits: 10},
{value: 0b1110101001, bits: 10},
{value: 0b1110101010, bits: 10},
{value: 0b1110101011, bits: 10},
{value: 0b1110101100, bits: 10},
{value: 0b1110101101, bits: 10},
{value: 0b1110101110, bits: 10},
{value: 0b1110101111, bits: 10},
{value: 0b1110110000, bits: 10},
{value: 0b1110110001, bits: 10},
{value: 0b1110110010, bits: 10},
{value: 0b1110110011, bits: 10},
{value: 0b1110110100, bits: 10},
{value: 0b1110110101, bits: 10},
{value: 0b1110110110, bits: 10},
{value: 0b1110110111, bits: 10},
{value: 0b1110111000, bits: 10},
{value: 0b1110111001, bits: 10},
{value: 0b1110111010, bits: 10},
{value: 0b1110111011, bits: 10},
{value: 0b1110111100, bits: 10},
{value: 0b1110111101, bits: 10},
{value: 0b1110111110, bits: 10},
{value: 0b1110111111, bits: 10},
{value: 0b1111000000, bits: 10},
{value: 0b1111000001, bits: 10},
{value: 0b1111000010, bits: 10},
{value: 0b1111000011, bits: 10},
{value: 0b1111000100, bits: 10},
{value: 0b1111000101, bits: 10},
{value: 0b1111000110, bits: 10},
{value: 0b1111000111, bits: 10},
{value: 0b1111001000, bits: 10},
{value: 0b1111001001, bits: 10},
{value: 0b1111001010, bits: 10},
{value: 0b1111001011, bits: 10},
{value: 0b1111001100, bits: 10},
{value: 0b1111001101, bits: 10},
{value: 0b1111001110, bits: 10},
{value: 0b1111001111, bits: 10},
{value: 0b1111010000, bits: 10},
{value: 0b1111010001, bits: 10},
{value: 0b1111010010, bits: 10},
{value: 0b1111010011, bits: 10},
{value: 0b1111010100, bits: 10},
{value: 0b1111010101, bits: 10},
{value: 0b1111010110, bits: 10},
{value: 0b1111010111, bits: 10},
{value: 0b1111011000, bits: 10},
{value: 0b1111011001, bits: 10},
{value: 0b1111011010, bits: 10},
{value: 0b1111011011, bits: 10},
{value: 0b1111011100, bits: 10},
{value: 0b1111011101, bits: 10},
{value: 0b1111011110, bits: 10},
{value: 0b1111011111, bits: 10},
{value: 0b1111100000, bits: 10},
{value: 0b1111100001, bits: 10},
{value: 0b1111100010, bits: 10},
{value: 0b1111100011, bits: 10},
{value: 0b1111100100, bits: 10},
{value: 0b1111100101, bits: 10},
{value: 0b1111100110, bits: 10},
{value: 0b1111100111, bits: 10},
{value: 0b1111101000, bits: 10},
{value: 0b1111101001, bits: 10},
{value: 0b1111101010, bits: 10},
{value: 0b1111101011, bits: 10},
{value: 0b1111101100, bits: 10},
{value: 0b1111101101, bits: 10},
{value: 0b1111101110, bits: 10},
{value: 0b1111101111, bits: 10},
{value: 0b1111110000, bits: 10},
{value: 0b1111110001, bits: 10},
{value: 0b1111110010, bits: 10},
{value: 0b1111110011, bits: 10},
{value: 0b1111110100, bits: 10},
{value: 0b1111110101, bits: 10},
{value: 0b1111110110, bits: 10},
{value: 0b1111110111, bits: 10},
{value: 0b1111111000, bits: 10},
{value: 0b1111111001, bits: 10},
{value: 0b1111111010, bits: 10},
{value: 0b1111111011, bits: 10},
{value: 0b1111111100, bits: 10},
{value: 0b1111111101, bits: 10},
}

269
codes/codes.go Normal file
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@@ -0,0 +1,269 @@
package codes
type Code struct {
Value uint16
Bits int
}
var codes = [256]Code{
{Value: 0b0000, Bits: 4},
{Value: 0b0001, Bits: 4},
{Value: 0b00100, Bits: 5},
{Value: 0b00101, Bits: 5},
{Value: 0b00110, Bits: 5},
{Value: 0b00111, Bits: 5},
{Value: 0b01000, Bits: 5},
{Value: 0b01001, Bits: 5},
{Value: 0b01010, Bits: 5},
{Value: 0b01011, Bits: 5},
{Value: 0b011000, Bits: 6},
{Value: 0b011001, Bits: 6},
{Value: 0b011010, Bits: 6},
{Value: 0b011011, Bits: 6},
{Value: 0b011100, Bits: 6},
{Value: 0b011101, Bits: 6},
{Value: 0b011110, Bits: 6},
{Value: 0b011111, Bits: 6},
{Value: 0b1000000, Bits: 7},
{Value: 0b1000001, Bits: 7},
{Value: 0b1000010, Bits: 7},
{Value: 0b1000011, Bits: 7},
{Value: 0b1000100, Bits: 7},
{Value: 0b1000101, Bits: 7},
{Value: 0b1000110, Bits: 7},
{Value: 0b1000111, Bits: 7},
{Value: 0b1001000, Bits: 7},
{Value: 0b1001001, Bits: 7},
{Value: 0b1001010, Bits: 7},
{Value: 0b1001011, Bits: 7},
{Value: 0b1001100, Bits: 7},
{Value: 0b1001101, Bits: 7},
{Value: 0b1001110, Bits: 7},
{Value: 0b1001111, Bits: 7},
{Value: 0b10100000, Bits: 8},
{Value: 0b10100001, Bits: 8},
{Value: 0b10100010, Bits: 8},
{Value: 0b10100011, Bits: 8},
{Value: 0b10100100, Bits: 8},
{Value: 0b10100101, Bits: 8},
{Value: 0b10100110, Bits: 8},
{Value: 0b10100111, Bits: 8},
{Value: 0b10101000, Bits: 8},
{Value: 0b10101001, Bits: 8},
{Value: 0b10101010, Bits: 8},
{Value: 0b10101011, Bits: 8},
{Value: 0b10101100, Bits: 8},
{Value: 0b10101101, Bits: 8},
{Value: 0b10101110, Bits: 8},
{Value: 0b10101111, Bits: 8},
{Value: 0b10110000, Bits: 8},
{Value: 0b10110001, Bits: 8},
{Value: 0b10110010, Bits: 8},
{Value: 0b10110011, Bits: 8},
{Value: 0b10110100, Bits: 8},
{Value: 0b10110101, Bits: 8},
{Value: 0b10110110, Bits: 8},
{Value: 0b10110111, Bits: 8},
{Value: 0b10111000, Bits: 8},
{Value: 0b10111001, Bits: 8},
{Value: 0b10111010, Bits: 8},
{Value: 0b10111011, Bits: 8},
{Value: 0b10111100, Bits: 8},
{Value: 0b10111101, Bits: 8},
{Value: 0b10111110, Bits: 8},
{Value: 0b10111111, Bits: 8},
{Value: 0b110000000, Bits: 9},
{Value: 0b110000001, Bits: 9},
{Value: 0b110000010, Bits: 9},
{Value: 0b110000011, Bits: 9},
{Value: 0b110000100, Bits: 9},
{Value: 0b110000101, Bits: 9},
{Value: 0b110000110, Bits: 9},
{Value: 0b110000111, Bits: 9},
{Value: 0b110001000, Bits: 9},
{Value: 0b110001001, Bits: 9},
{Value: 0b110001010, Bits: 9},
{Value: 0b110001011, Bits: 9},
{Value: 0b110001100, Bits: 9},
{Value: 0b110001101, Bits: 9},
{Value: 0b110001110, Bits: 9},
{Value: 0b110001111, Bits: 9},
{Value: 0b110010000, Bits: 9},
{Value: 0b110010001, Bits: 9},
{Value: 0b110010010, Bits: 9},
{Value: 0b110010011, Bits: 9},
{Value: 0b110010100, Bits: 9},
{Value: 0b110010101, Bits: 9},
{Value: 0b110010110, Bits: 9},
{Value: 0b110010111, Bits: 9},
{Value: 0b110011000, Bits: 9},
{Value: 0b110011001, Bits: 9},
{Value: 0b110011010, Bits: 9},
{Value: 0b110011011, Bits: 9},
{Value: 0b110011100, Bits: 9},
{Value: 0b110011101, Bits: 9},
{Value: 0b110011110, Bits: 9},
{Value: 0b110011111, Bits: 9},
{Value: 0b110100000, Bits: 9},
{Value: 0b110100001, Bits: 9},
{Value: 0b110100010, Bits: 9},
{Value: 0b110100011, Bits: 9},
{Value: 0b110100100, Bits: 9},
{Value: 0b110100101, Bits: 9},
{Value: 0b110100110, Bits: 9},
{Value: 0b110100111, Bits: 9},
{Value: 0b110101000, Bits: 9},
{Value: 0b110101001, Bits: 9},
{Value: 0b110101010, Bits: 9},
{Value: 0b110101011, Bits: 9},
{Value: 0b110101100, Bits: 9},
{Value: 0b110101101, Bits: 9},
{Value: 0b110101110, Bits: 9},
{Value: 0b110101111, Bits: 9},
{Value: 0b110110000, Bits: 9},
{Value: 0b110110001, Bits: 9},
{Value: 0b110110010, Bits: 9},
{Value: 0b110110011, Bits: 9},
{Value: 0b110110100, Bits: 9},
{Value: 0b110110101, Bits: 9},
{Value: 0b110110110, Bits: 9},
{Value: 0b110110111, Bits: 9},
{Value: 0b110111000, Bits: 9},
{Value: 0b110111001, Bits: 9},
{Value: 0b110111010, Bits: 9},
{Value: 0b110111011, Bits: 9},
{Value: 0b110111100, Bits: 9},
{Value: 0b110111101, Bits: 9},
{Value: 0b110111110, Bits: 9},
{Value: 0b110111111, Bits: 9},
{Value: 0b1110000000, Bits: 10},
{Value: 0b1110000001, Bits: 10},
{Value: 0b1110000010, Bits: 10},
{Value: 0b1110000011, Bits: 10},
{Value: 0b1110000100, Bits: 10},
{Value: 0b1110000101, Bits: 10},
{Value: 0b1110000110, Bits: 10},
{Value: 0b1110000111, Bits: 10},
{Value: 0b1110001000, Bits: 10},
{Value: 0b1110001001, Bits: 10},
{Value: 0b1110001010, Bits: 10},
{Value: 0b1110001011, Bits: 10},
{Value: 0b1110001100, Bits: 10},
{Value: 0b1110001101, Bits: 10},
{Value: 0b1110001110, Bits: 10},
{Value: 0b1110001111, Bits: 10},
{Value: 0b1110010000, Bits: 10},
{Value: 0b1110010001, Bits: 10},
{Value: 0b1110010010, Bits: 10},
{Value: 0b1110010011, Bits: 10},
{Value: 0b1110010100, Bits: 10},
{Value: 0b1110010101, Bits: 10},
{Value: 0b1110010110, Bits: 10},
{Value: 0b1110010111, Bits: 10},
{Value: 0b1110011000, Bits: 10},
{Value: 0b1110011001, Bits: 10},
{Value: 0b1110011010, Bits: 10},
{Value: 0b1110011011, Bits: 10},
{Value: 0b1110011100, Bits: 10},
{Value: 0b1110011101, Bits: 10},
{Value: 0b1110011110, Bits: 10},
{Value: 0b1110011111, Bits: 10},
{Value: 0b1110100000, Bits: 10},
{Value: 0b1110100001, Bits: 10},
{Value: 0b1110100010, Bits: 10},
{Value: 0b1110100011, Bits: 10},
{Value: 0b1110100100, Bits: 10},
{Value: 0b1110100101, Bits: 10},
{Value: 0b1110100110, Bits: 10},
{Value: 0b1110100111, Bits: 10},
{Value: 0b1110101000, Bits: 10},
{Value: 0b1110101001, Bits: 10},
{Value: 0b1110101010, Bits: 10},
{Value: 0b1110101011, Bits: 10},
{Value: 0b1110101100, Bits: 10},
{Value: 0b1110101101, Bits: 10},
{Value: 0b1110101110, Bits: 10},
{Value: 0b1110101111, Bits: 10},
{Value: 0b1110110000, Bits: 10},
{Value: 0b1110110001, Bits: 10},
{Value: 0b1110110010, Bits: 10},
{Value: 0b1110110011, Bits: 10},
{Value: 0b1110110100, Bits: 10},
{Value: 0b1110110101, Bits: 10},
{Value: 0b1110110110, Bits: 10},
{Value: 0b1110110111, Bits: 10},
{Value: 0b1110111000, Bits: 10},
{Value: 0b1110111001, Bits: 10},
{Value: 0b1110111010, Bits: 10},
{Value: 0b1110111011, Bits: 10},
{Value: 0b1110111100, Bits: 10},
{Value: 0b1110111101, Bits: 10},
{Value: 0b1110111110, Bits: 10},
{Value: 0b1110111111, Bits: 10},
{Value: 0b1111000000, Bits: 10},
{Value: 0b1111000001, Bits: 10},
{Value: 0b1111000010, Bits: 10},
{Value: 0b1111000011, Bits: 10},
{Value: 0b1111000100, Bits: 10},
{Value: 0b1111000101, Bits: 10},
{Value: 0b1111000110, Bits: 10},
{Value: 0b1111000111, Bits: 10},
{Value: 0b1111001000, Bits: 10},
{Value: 0b1111001001, Bits: 10},
{Value: 0b1111001010, Bits: 10},
{Value: 0b1111001011, Bits: 10},
{Value: 0b1111001100, Bits: 10},
{Value: 0b1111001101, Bits: 10},
{Value: 0b1111001110, Bits: 10},
{Value: 0b1111001111, Bits: 10},
{Value: 0b1111010000, Bits: 10},
{Value: 0b1111010001, Bits: 10},
{Value: 0b1111010010, Bits: 10},
{Value: 0b1111010011, Bits: 10},
{Value: 0b1111010100, Bits: 10},
{Value: 0b1111010101, Bits: 10},
{Value: 0b1111010110, Bits: 10},
{Value: 0b1111010111, Bits: 10},
{Value: 0b1111011000, Bits: 10},
{Value: 0b1111011001, Bits: 10},
{Value: 0b1111011010, Bits: 10},
{Value: 0b1111011011, Bits: 10},
{Value: 0b1111011100, Bits: 10},
{Value: 0b1111011101, Bits: 10},
{Value: 0b1111011110, Bits: 10},
{Value: 0b1111011111, Bits: 10},
{Value: 0b1111100000, Bits: 10},
{Value: 0b1111100001, Bits: 10},
{Value: 0b1111100010, Bits: 10},
{Value: 0b1111100011, Bits: 10},
{Value: 0b1111100100, Bits: 10},
{Value: 0b1111100101, Bits: 10},
{Value: 0b1111100110, Bits: 10},
{Value: 0b1111100111, Bits: 10},
{Value: 0b1111101000, Bits: 10},
{Value: 0b1111101001, Bits: 10},
{Value: 0b1111101010, Bits: 10},
{Value: 0b1111101011, Bits: 10},
{Value: 0b1111101100, Bits: 10},
{Value: 0b1111101101, Bits: 10},
{Value: 0b1111101110, Bits: 10},
{Value: 0b1111101111, Bits: 10},
{Value: 0b1111110000, Bits: 10},
{Value: 0b1111110001, Bits: 10},
{Value: 0b1111110010, Bits: 10},
{Value: 0b1111110011, Bits: 10},
{Value: 0b1111110100, Bits: 10},
{Value: 0b1111110101, Bits: 10},
{Value: 0b1111110110, Bits: 10},
{Value: 0b1111110111, Bits: 10},
{Value: 0b1111111000, Bits: 10},
{Value: 0b1111111001, Bits: 10},
{Value: 0b1111111010, Bits: 10},
{Value: 0b1111111011, Bits: 10},
{Value: 0b1111111100, Bits: 10},
{Value: 0b1111111101, Bits: 10},
}
func CodeForIndex(index int) Code {
return codes[index]
}

5
encode.go
View File

@@ -5,6 +5,7 @@ import (
"github.com/icza/bitio"
"github.com/samber/lo"
"github.com/securemesh/coding/codes"
"github.com/securemesh/coding/heap"
)
@@ -14,8 +15,8 @@ func Encode(h *heap.Heap, msg []byte) []byte {
for _, b := range msg {
index := h.IncrementSymbol(b)
code := codes[index]
lo.Must0(w.WriteBits(uint64(code.value), uint8(code.bits)))
code := codes.CodeForIndex(index)
lo.Must0(w.WriteBits(uint64(code.Value), uint8(code.Bits)))
}
lo.Must0(w.Close())