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resetius/process-vga-pallette.php

Forked from cesarmiquel/process-vga-pallette.php
Created October 3, 2023 22:35
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VGA 256 Color Palette to RGB
Raw
process-vga-pallette.php
<?php
$im = imagecreatefrompng("vga-palette.png");
$sx = (int) 800 / 16;
$sy = (int) 800 / 16;
$ox = (int) ($sx / 2);
$oy = (int) ($sx / 2);
for($y = 0; $y < 16; $y++) {
for($x = 0; $x < 16; $x++) {
$rgb = imagecolorat($im, $sx*$x + $ox, $sy*$y + $oy);
$r = ($rgb >> 16) & 0xFF;
$g = ($rgb >> 8) & 0xFF;
$b = $rgb & 0xFF;
$color = sprintf("%02x%02x%02x", $r, $g, $b);
printf("%d,%d,%d,%02x,%02x,%02x,%s\n", $r, $g, $b, $r, $g, $b, $color);
}
}
Raw
vga-palette.csv
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