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@mgdm /iteration.php
Last active Aug 29, 2015

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Mandelbrot code demonstrating Recki-CT
<?php
/**
* @param double $cReal
* @param double $cImag
* @param int $maxIterations
* @return int
*/
function mandelbrotIteration($cReal, $cImag, $maxIterations)
{
$originalReal = $cReal;
$originalImag = $cImag;
$ni = 0;
while ($ni < $maxIterations && ($cReal * $cReal * $cImag * $cImag < 4.0)) {
$tmp = $cReal * $cReal - $cImag * $cImag + $originalReal;
$cImag = $cImag * $cReal * 2 + $originalImag;
$cReal = $tmp;
$ni++;
}
if ($ni == $maxIterations) {
$ni = 0;
}
return $ni;
}
<?php
ini_set('memory_limit', -1);
define('MAX_ITERATIONS', 4096);
function mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx) {
$dx = ($xMax - $xMin) / $xPx;
$dy = ($yMax - $yMin) / $yPx;
$rows = [];
for ($iy = 0; $iy < $yPx; $iy++) {
$row = [];
for ($ix = 0; $ix < $xPx; $ix += 1) {
$cReal = $xMin + $ix * $dx;
$cImag = $yMax - $iy * $dy;
$originalReal = $cReal;
$originalImag = $cImag;
$ni = 0;
while ($ni < MAX_ITERATIONS && ($cReal * $cReal * $cImag * $cImag < 4.0)) {
$tmp = $cReal * $cReal - $cImag * $cImag + $originalReal;
$cImag = $cImag * $cReal * 2 + $originalImag;
$cReal = $tmp;
$ni++;
}
if ($ni == MAX_ITERATIONS) {
$ni = 0;
}
$row[] = $ni;
}
$rows[] = $row;
}
return $rows;
}
function render($filename, $xPx, $yPx, $data)
{
$image = imagecreate($xPx, $yPx);
$colours = [];
for ($y = 0; $y < $yPx; $y++) {
for ($x = 0; $x < $xPx; $x++) {
$iterations = (int) $data[$y][$x];
if ($iterations == MAX_ITERATIONS) {
$colour = [0, 0, 0]; /* In the set. Assign black. */
} else if ($iterations < 64) {
$colour = [$iterations * 2, 0, 0]; /* 0x0000 to 0x007E */
} else if ($iterations < 128) {
$colour = [((($iterations - 64) * 128) / 126) + 128, 0, 0]; /* 0x0080 to 0x00C0 */
} else if ($iterations < 256) {
$colour = [((($iterations - 128) * 62) / 127) + 193, 0, 0]; /* 0x00C1 to 0x00FF */
} else if ($iterations < 512) {
$colour = [255, ((($iterations - 256) * 62) / 255) + 1, 0]; /* 0x01FF to 0x3FFF */
} else if ($iterations < 1024) {
$colour = [255, ((($iterations - 512) * 63) / 511) + 64, 0]; /* 0x40FF to 0x7FFF */
} else if ($iterations < 2048) {
$colour = [255, ((($iterations - 1024) * 63) / 1023) + 128, 0]; /* 0x80FF to 0xBFFF */
} else if ($iterations < 4096) {
$colour = [255, ((($iterations - 2048) * 63) / 2047) + 192, 0]; /* 0xC0FF to 0xFFFF */
} else {
$colour = [255, 255, 0];
}
$colourString = sprintf("rgb(%d,%d,%d)", $colour[0], $colour[1], $colour[2]);
if (isset($colours[$colourString])) {
$colour = $colours[$colourString];
} else {
$colour = imagecolorallocate($image, $colour[0], $colour[1], $colour[2]);
$colours[$colourString] = $colour;
}
imagesetpixel($image, $x, $y, $colour);
}
}
imagepng($image, $filename);
}
function main() {
$xMin = -2.0;
$xMax = 1.0;
$yMin = -1.0;
$yMax = 1.0;
$xPx = 800;
$yPx = 512;
$start = microtime(true);
$data = mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx);
$mandelTime = microtime(true) - $start;
printf("Data took %F\n", $mandelTime);
$start = microtime(true);
render('mandel.png', $xPx, $yPx, $data);
$renderTime = microtime(true) - $start;
printf("Render took %F\n", $renderTime);
}
main();
<?php
ini_set('memory_limit', -1);
define('MAX_ITERATIONS', 4096);
require('vendor/autoload.php');
function mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx, $iterationFunc) {
$dx = ($xMax - $xMin) / $xPx;
$dy = ($yMax - $yMin) / $yPx;
$rows = [];
for ($iy = 0; $iy < $yPx; $iy++) {
$row = [];
for ($ix = 0; $ix < $xPx; $ix += 1) {
$cReal = $xMin + $ix * $dx;
$cImag = $yMax - $iy * $dy;
$row[] = $iterationFunc($cReal, $cImag, MAX_ITERATIONS);
}
$rows[] = $row;
}
return $rows;
}
/**
* @param double $cReal
* @param double $cImag
* @param int $maxIterations
* @return int
*/
function mandelbrotIteration($cReal, $cImag, $maxIterations)
{
$originalReal = $cReal;
$originalImag = $cImag;
$ni = 0;
while ($ni < $maxIterations && ($cReal * $cReal * $cImag * $cImag < 4.0)) {
$tmp = $cReal * $cReal - $cImag * $cImag + $originalReal;
$cImag = $cImag * $cReal * 2 + $originalImag;
$cReal = $tmp;
$ni++;
}
if ($ni == $maxIterations) {
$ni = 0;
}
return $ni;
}
function render($filename, $xPx, $yPx, $data)
{
$image = imagecreate($xPx, $yPx);
$colours = [];
for ($y = 0; $y < $yPx; $y++) {
for ($x = 0; $x < $xPx; $x++) {
$iterations = (int) $data[$y][$x];
if ($iterations == MAX_ITERATIONS) {
$colour = [0, 0, 0]; /* In the set. Assign black. */
} else if ($iterations < 64) {
$colour = [$iterations * 2, 0, 0]; /* 0x0000 to 0x007E */
} else if ($iterations < 128) {
$colour = [((($iterations - 64) * 128) / 126) + 128, 0, 0]; /* 0x0080 to 0x00C0 */
} else if ($iterations < 256) {
$colour = [((($iterations - 128) * 62) / 127) + 193, 0, 0]; /* 0x00C1 to 0x00FF */
} else if ($iterations < 512) {
$colour = [255, ((($iterations - 256) * 62) / 255) + 1, 0]; /* 0x01FF to 0x3FFF */
} else if ($iterations < 1024) {
$colour = [255, ((($iterations - 512) * 63) / 511) + 64, 0]; /* 0x40FF to 0x7FFF */
} else if ($iterations < 2048) {
$colour = [255, ((($iterations - 1024) * 63) / 1023) + 128, 0]; /* 0x80FF to 0xBFFF */
} else if ($iterations < 4096) {
$colour = [255, ((($iterations - 2048) * 63) / 2047) + 192, 0]; /* 0xC0FF to 0xFFFF */
} else {
$colour = [255, 255, 0];
}
$colourString = sprintf("rgb(%d,%d,%d)", $colour[0], $colour[1], $colour[2]);
if (isset($colours[$colourString])) {
$colour = $colours[$colourString];
} else {
$colour = imagecolorallocate($image, $colour[0], $colour[1], $colour[2]);
$colours[$colourString] = $colour;
}
imagesetpixel($image, $x, $y, $colour);
}
}
imagepng($image, $filename);
}
function main() {
$xMin = -2.0;
$xMax = 1.0;
$yMin = -1.0;
$yMax = 1.0;
$xPx = 800;
$yPx = 512;
$start = microtime(true);
$iterationFunc = ReckiCT\Jit::jitfu('mandelbrotIteration');
$compileTime = microtime(true) - $start;
printf("Compiling took %F\n", $compileTime);
$start = microtime(true);
$data = mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx, $iterationFunc);
$mandelTime = microtime(true) - $start;
printf("Data took %F\n", $mandelTime);
$start = microtime(true);
render('mandel.png', $xPx, $yPx, $data);
$renderTime = microtime(true) - $start;
printf("Render took %F\n", $renderTime);
}
main();
<?php
ini_set('memory_limit', -1);
define('MAX_ITERATIONS', 4096);
require('vendor/autoload.php');
function mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx, $iterationFunc) {
$dx = ($xMax - $xMin) / $xPx;
$dy = ($yMax - $yMin) / $yPx;
$rows = [];
for ($iy = 0; $iy < $yPx; $iy++) {
$row = [];
for ($ix = 0; $ix < $xPx; $ix += 1) {
$cReal = $xMin + $ix * $dx;
$cImag = $yMax - $iy * $dy;
$row[] = $iterationFunc($cReal, $cImag, MAX_ITERATIONS);
}
$rows[] = $row;
}
return $rows;
}
/**
* @param double $cReal
* @param double $cImag
* @param int $maxIterations
* @return int
*/
function mandelbrotIteration($cReal, $cImag, $maxIterations)
{
$originalReal = $cReal;
$originalImag = $cImag;
$ni = 0;
while ($ni < $maxIterations && ($cReal * $cReal * $cImag * $cImag < 4.0)) {
$tmp = $cReal * $cReal - $cImag * $cImag + $originalReal;
$cImag = $cImag * $cReal * 2 + $originalImag;
$cReal = $tmp;
$ni++;
}
if ($ni == $maxIterations) {
$ni = 0;
}
return $ni;
}
function render($filename, $xPx, $yPx, $data)
{
$image = imagecreate($xPx, $yPx);
$colours = [];
for ($y = 0; $y < $yPx; $y++) {
for ($x = 0; $x < $xPx; $x++) {
$iterations = (int) $data[$y][$x];
if ($iterations == MAX_ITERATIONS) {
$colour = [0, 0, 0]; /* In the set. Assign black. */
} else if ($iterations < 64) {
$colour = [$iterations * 2, 0, 0]; /* 0x0000 to 0x007E */
} else if ($iterations < 128) {
$colour = [((($iterations - 64) * 128) / 126) + 128, 0, 0]; /* 0x0080 to 0x00C0 */
} else if ($iterations < 256) {
$colour = [((($iterations - 128) * 62) / 127) + 193, 0, 0]; /* 0x00C1 to 0x00FF */
} else if ($iterations < 512) {
$colour = [255, ((($iterations - 256) * 62) / 255) + 1, 0]; /* 0x01FF to 0x3FFF */
} else if ($iterations < 1024) {
$colour = [255, ((($iterations - 512) * 63) / 511) + 64, 0]; /* 0x40FF to 0x7FFF */
} else if ($iterations < 2048) {
$colour = [255, ((($iterations - 1024) * 63) / 1023) + 128, 0]; /* 0x80FF to 0xBFFF */
} else if ($iterations < 4096) {
$colour = [255, ((($iterations - 2048) * 63) / 2047) + 192, 0]; /* 0xC0FF to 0xFFFF */
} else {
$colour = [255, 255, 0];
}
$colourString = sprintf("rgb(%d,%d,%d)", $colour[0], $colour[1], $colour[2]);
if (isset($colours[$colourString])) {
$colour = $colours[$colourString];
} else {
$colour = imagecolorallocate($image, $colour[0], $colour[1], $colour[2]);
$colours[$colourString] = $colour;
}
imagesetpixel($image, $x, $y, $colour);
}
}
imagepng($image, $filename);
}
function main() {
$xMin = -2.0;
$xMax = 1.0;
$yMin = -1.0;
$yMax = 1.0;
$xPx = 800;
$yPx = 512;
if (file_exists('mandelbrotIteration.ir')) {
$start = microtime(true);
$ir = file_get_contents('mandelbrotIteration.ir');
$iterationFunc = ReckiCT\Jit::getInstance()->compileIrJitFu($ir, 'fibo');
$loadTime = microtime(true) - $start;
printf("Loading took %F\n", $loadTime);
} else {
$start = microtime(true);
$iterationFunc = ReckiCT\Jit::jitfu('mandelbrotIteration');
$compileTime = microtime(true) - $start;
printf("Compiling took %F\n", $compileTime);
file_put_contents('mandelbrotIteration.ir',
ReckiCT\Jit::getInstance()->getFunctionIr('mandelbrotIteration'));
}
$start = microtime(true);
$data = mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx, $iterationFunc);
$mandelTime = microtime(true) - $start;
printf("Data took %F\n", $mandelTime);
$start = microtime(true);
render('mandel.png', $xPx, $yPx, $data);
$renderTime = microtime(true) - $start;
printf("Render took %F\n", $renderTime);
}
main();
<?php
ini_set('memory_limit', -1);
define('MAX_ITERATIONS', 4096);
require('vendor/autoload.php');
function mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx) {
$dx = ($xMax - $xMin) / $xPx;
$dy = ($yMax - $yMin) / $yPx;
$rows = [];
for ($iy = 0; $iy < $yPx; $iy++) {
$row = [];
for ($ix = 0; $ix < $xPx; $ix += 1) {
$cReal = $xMin + $ix * $dx;
$cImag = $yMax - $iy * $dy;
$row[] = mandelbrotIteration($cReal, $cImag, MAX_ITERATIONS);
}
$rows[] = $row;
}
return $rows;
}
if (!function_exists('mandelbrotIteration')) {
/**
* @param double $cReal
* @param double $cImag
* @param int $maxIterations
* @return int
*/
function mandelbrotIteration($cReal, $cImag, $maxIterations)
{
$originalReal = $cReal;
$originalImag = $cImag;
$ni = 0;
while ($ni < $maxIterations && ($cReal * $cReal * $cImag * $cImag < 4.0)) {
$tmp = $cReal * $cReal - $cImag * $cImag + $originalReal;
$cImag = $cImag * $cReal * 2 + $originalImag;
$cReal = $tmp;
$ni++;
}
if ($ni == $maxIterations) {
$ni = 0;
}
return $ni;
}
}
function render($filename, $xPx, $yPx, $data)
{
$image = imagecreate($xPx, $yPx);
$colours = [];
for ($y = 0; $y < $yPx; $y++) {
for ($x = 0; $x < $xPx; $x++) {
$iterations = (int) $data[$y][$x];
if ($iterations == MAX_ITERATIONS) {
$colour = [0, 0, 0]; /* In the set. Assign black. */
} else if ($iterations < 64) {
$colour = [$iterations * 2, 0, 0]; /* 0x0000 to 0x007E */
} else if ($iterations < 128) {
$colour = [((($iterations - 64) * 128) / 126) + 128, 0, 0]; /* 0x0080 to 0x00C0 */
} else if ($iterations < 256) {
$colour = [((($iterations - 128) * 62) / 127) + 193, 0, 0]; /* 0x00C1 to 0x00FF */
} else if ($iterations < 512) {
$colour = [255, ((($iterations - 256) * 62) / 255) + 1, 0]; /* 0x01FF to 0x3FFF */
} else if ($iterations < 1024) {
$colour = [255, ((($iterations - 512) * 63) / 511) + 64, 0]; /* 0x40FF to 0x7FFF */
} else if ($iterations < 2048) {
$colour = [255, ((($iterations - 1024) * 63) / 1023) + 128, 0]; /* 0x80FF to 0xBFFF */
} else if ($iterations < 4096) {
$colour = [255, ((($iterations - 2048) * 63) / 2047) + 192, 0]; /* 0xC0FF to 0xFFFF */
} else {
$colour = [255, 255, 0];
}
$colourString = sprintf("rgb(%d,%d,%d)", $colour[0], $colour[1], $colour[2]);
if (isset($colours[$colourString])) {
$colour = $colours[$colourString];
} else {
$colour = imagecolorallocate($image, $colour[0], $colour[1], $colour[2]);
$colours[$colourString] = $colour;
}
imagesetpixel($image, $x, $y, $colour);
}
}
imagepng($image, $filename);
}
function main() {
$xMin = -2.0;
$xMax = 1.0;
$yMin = -1.0;
$yMax = 1.0;
$xPx = 800;
$yPx = 512;
$start = microtime(true);
$data = mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx);
$mandelTime = microtime(true) - $start;
printf("Data took %F\n", $mandelTime);
$start = microtime(true);
render('mandel.png', $xPx, $yPx, $data);
$renderTime = microtime(true) - $start;
printf("Render took %F\n", $renderTime);
}
main();
<?php
ini_set('memory_limit', -1);
define('MAX_ITERATIONS', 4096);
require('vendor/autoload.php');
/**
* @param double $xMin
* @param double $xMax
* @param double $yMin
* @param double $yMax
* @param int $xPx
* @param int $yPx
* @return array
*/
function mandelbrot($xMin, $xMax, $yMin, $yMax, $xPx, $yPx) {
$dx = ($xMax - $xMin) / $xPx;
$dy = ($yMax - $yMin) / $yPx;
$rows = [];
for ($iy = 0; $iy < $yPx; $iy++) {
$row = [];
for ($ix = 0; $ix < $xPx; $ix += 1) {
$cReal = $xMin + $ix * $dx;
$cImag = $yMax - $iy * $dy;
$originalReal = $cReal;
$originalImag = $cImag;
$ni = 0;
while ($ni < MAX_ITERATIONS && ($cReal * $cReal * $cImag * $cImag < 4.0)) {
$tmp = $cReal * $cReal - $cImag * $cImag + $originalReal;
$cImag = $cImag * $cReal * 2 + $originalImag;
$cReal = $tmp;
$ni++;
}
if ($ni == MAX_ITERATIONS) {
$ni = 0;
}
$row[] = $ni;
}
$rows[] = $row;
}
return $rows;
}
function render($filename, $xPx, $yPx, $data)
{
$image = imagecreate($xPx, $yPx);
$colours = [];
for ($y = 0; $y < $yPx; $y++) {
for ($x = 0; $x < $xPx; $x++) {
$iterations = (int) $data[$y][$x];
if ($iterations == MAX_ITERATIONS) {
$colour = [0, 0, 0]; /* In the set. Assign black. */
} else if ($iterations < 64) {
$colour = [$iterations * 2, 0, 0]; /* 0x0000 to 0x007E */
} else if ($iterations < 128) {
$colour = [((($iterations - 64) * 128) / 126) + 128, 0, 0]; /* 0x0080 to 0x00C0 */
} else if ($iterations < 256) {
$colour = [((($iterations - 128) * 62) / 127) + 193, 0, 0]; /* 0x00C1 to 0x00FF */
} else if ($iterations < 512) {
$colour = [255, ((($iterations - 256) * 62) / 255) + 1, 0]; /* 0x01FF to 0x3FFF */
} else if ($iterations < 1024) {
$colour = [255, ((($iterations - 512) * 63) / 511) + 64, 0]; /* 0x40FF to 0x7FFF */
} else if ($iterations < 2048) {
$colour = [255, ((($iterations - 1024) * 63) / 1023) + 128, 0]; /* 0x80FF to 0xBFFF */
} else if ($iterations < 4096) {
$colour = [255, ((($iterations - 2048) * 63) / 2047) + 192, 0]; /* 0xC0FF to 0xFFFF */
} else {
$colour = [255, 255, 0];
}
$colourString = sprintf("rgb(%d,%d,%d)", $colour[0], $colour[1], $colour[2]);
if (isset($colours[$colourString])) {
$colour = $colours[$colourString];
} else {
$colour = imagecolorallocate($image, $colour[0], $colour[1], $colour[2]);
$colours[$colourString] = $colour;
}
imagesetpixel($image, $x, $y, $colour);
}
}
imagepng($image, $filename);
}
function main() {
$xMin = -2.0;
$xMax = 1.0;
$yMin = -1.0;
$yMax = 1.0;
$xPx = 800;
$yPx = 512;
$start = microtime(true);
$function = ReckiCT\Jit::jitfu('mandelbrot');
printf("Compiling took %F\n", $mandelTime);
$start = microtime(true);
$data = $function($xMin, $xMax, $yMin, $yMax, $xPx, $yPx);
$mandelTime = microtime(true) - $start;
printf("Data took %F\n", $mandelTime);
$start = microtime(true);
render('mandel.png', $xPx, $yPx, $data);
$renderTime = microtime(true) - $start;
printf("Render took %F\n", $renderTime);
}
main();
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