import (
	"fmt"
	"math"
	"strings"
)

func printGammaTable(start, end int, gamma float64) {
	g_s := strings.ReplaceAll(fmt.Sprintf("%1.1f", gamma), ".", "_")
	fmt.Printf("\nconst uint8_t PROGMEM gamma_%s_%dto%d_table[] = {\n", g_s, start, end)
	for x := 0; x < 256; x++ {
		if (x)%16 == 0 {
			fmt.Print("  ")
		}
		fmt.Printf("%3d", int(math.Round(math.Pow(float64(x)/255, gamma)*float64(end-start)))+start)
		if x < 255 {
			fmt.Print(",")
		}
		if (x+1)%16 == 0 {
			fmt.Print("\n")
		}
	}
	fmt.Println("};")
}

func main() {
	for gamma := 2.2; gamma < 4; gamma += 0.2 {
		printGammaTable(0, 255, gamma)
		printGammaTable(1, 255, gamma)
	}
}