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coagmanocoagmano
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‎GIFEncoder.class.php

+271
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<?php
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/*
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:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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:: Formerly known as:::
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:: GIFEncoder Version 2.0 by László Zsidi, http://gifs.hu
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::
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:: This class is a rewritten 'GifMerge.class.php' version.
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::
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:: Modification:
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:: - Simplified and easy code,
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:: - Ultra fast encoding,
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:: - Built-in errors,
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:: - Stable working
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::
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::
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:: Updated at 2007. 02. 13. '00.05.AM'
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::
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::
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::
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:: Try on-line GIFBuilder Form demo based on GIFEncoder.
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::
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:: http://gifs.hu/phpclasses/demos/GifBuilder/
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::
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:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
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*/
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/**
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* Encode animated gifs
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*/
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class AnimatedGif {
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/**
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* The built gif image
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* @var resource
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*/
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private $image = '';
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/**
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* The array of images to stack
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* @var array
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*/
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private $buffer = Array();
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/**
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* How many times to loop? 0 = infinite
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* @var int
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*/
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private $number_of_loops = 0;
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/**
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*
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* @var int
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*/
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private $DIS = 2;
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/**
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* Which colour is transparent
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* @var int
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*/
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private $transparent_colour = -1;
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/**
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* Is this the first frame
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* @var int
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*/
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private $first_frame = TRUE;
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/**
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* Encode an animated gif
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* @param array $source_images An array of binary source images
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* @param array $image_delays The delays associated with the source images
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* @param type $number_of_loops The number of times to loop
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* @param int $transparent_colour_red
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* @param int $transparent_colour_green
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* @param int $transparent_colour_blue
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*/
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function __construct(array $source_images, array $image_delays, $number_of_loops, $transparent_colour_red = -1, $transparent_colour_green = -1, $transparent_colour_blue = -1) {
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/**
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* I have no idea what these even do, they appear to do nothing to the image so far
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*/
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$transparent_colour_red = 0;
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$transparent_colour_green = 0;
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$transparent_colour_blue = 0;
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$this->number_of_loops = ( $number_of_loops > -1 ) ? $number_of_loops : 0;
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$this->set_transparent_colour($transparent_colour_red, $transparent_colour_green, $transparent_colour_blue);
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$this->buffer_images($source_images);
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$this->addHeader();
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for ($i = 0; $i < count($this->buffer); $i++) {
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$this->addFrame($i, $image_delays [$i]);
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}
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}
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/**
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* Set the transparent colour
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* @param int $red
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* @param int $green
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* @param int $blue
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*/
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private function set_transparent_colour($red, $green, $blue){
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$this->transparent_colour = ( $red > -1 && $green > -1 && $blue > -1 ) ?
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( $red | ( $green << 8 ) | ( $blue << 16 ) ) : -1;
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}
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/**
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* Buffer the images and check to make sure they are vaild
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* @param array $source_images the array of source images
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* @throws Exception
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*/
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private function buffer_images($source_images) {
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for ($i = 0; $i < count($source_images); $i++) {
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$this->buffer [] = $source_images [$i];
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if (substr($this->buffer [$i], 0, 6) != "GIF87a" && substr($this->buffer [$i], 0, 6) != "GIF89a") {
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throw new Exception('Image at position ' . $i. ' is not a gif');
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}
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for ($j = ( 13 + 3 * ( 2 << ( ord($this->buffer [$i] { 10 }) & 0x07 ) ) ), $k = TRUE; $k; $j++) {
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switch ($this->buffer [$i] { $j }) {
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case "!":
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if (( substr($this->buffer [$i], ( $j + 3), 8) ) == "NETSCAPE") {
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throw new Exception('You cannot make an animation from an animated gif.');
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}
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break;
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case ";":
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$k = FALSE;
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break;
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}
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}
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}
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}
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/**
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* Add the gif header to the image
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*/
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private function addHeader() {
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$cmap = 0;
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$this->image = 'GIF89a';
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if (ord($this->buffer [0] { 10 }) & 0x80) {
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$cmap = 3 * ( 2 << ( ord($this->buffer [0] { 10 }) & 0x07 ) );
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$this->image .= substr($this->buffer [0], 6, 7);
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$this->image .= substr($this->buffer [0], 13, $cmap);
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$this->image .= "!\377\13NETSCAPE2.0\3\1" . $this->word($this->number_of_loops) . "\0";
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}
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}
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/**
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* Add a frame to the animation
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* @param int $frame The frame to be added
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* @param int $delay The delay associated with the frame
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*/
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private function addFrame($frame, $delay) {
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$Locals_str = 13 + 3 * ( 2 << ( ord($this->buffer [$frame] { 10 }) & 0x07 ) );
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$Locals_end = strlen($this->buffer [$frame]) - $Locals_str - 1;
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$Locals_tmp = substr($this->buffer [$frame], $Locals_str, $Locals_end);
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$Global_len = 2 << ( ord($this->buffer [0] { 10 }) & 0x07 );
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$Locals_len = 2 << ( ord($this->buffer [$frame] { 10 }) & 0x07 );
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$Global_rgb = substr($this->buffer [0], 13, 3 * ( 2 << ( ord($this->buffer [0] { 10 }) & 0x07 ) ));
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$Locals_rgb = substr($this->buffer [$frame], 13, 3 * ( 2 << ( ord($this->buffer [$frame] { 10 }) & 0x07 ) ));
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$Locals_ext = "!\xF9\x04" . chr(( $this->DIS << 2 ) + 0) .
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chr(( $delay >> 0 ) & 0xFF) . chr(( $delay >> 8 ) & 0xFF) . "\x0\x0";
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if ($this->transparent_colour > -1 && ord($this->buffer [$frame] { 10 }) & 0x80) {
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for ($j = 0; $j < ( 2 << ( ord($this->buffer [$frame] { 10 }) & 0x07 ) ); $j++) {
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if (
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ord($Locals_rgb { 3 * $j + 0 }) == ( ( $this->transparent_colour >> 16 ) & 0xFF ) &&
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ord($Locals_rgb { 3 * $j + 1 }) == ( ( $this->transparent_colour >> 8 ) & 0xFF ) &&
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ord($Locals_rgb { 3 * $j + 2 }) == ( ( $this->transparent_colour >> 0 ) & 0xFF )
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) {
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$Locals_ext = "!\xF9\x04" . chr(( $this->DIS << 2 ) + 1) .
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chr(( $delay >> 0 ) & 0xFF) . chr(( $delay >> 8 ) & 0xFF) . chr($j) . "\x0";
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break;
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}
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}
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}
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switch ($Locals_tmp { 0 }) {
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case "!":
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$Locals_img = substr($Locals_tmp, 8, 10);
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$Locals_tmp = substr($Locals_tmp, 18, strlen($Locals_tmp) - 18);
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break;
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case ",":
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$Locals_img = substr($Locals_tmp, 0, 10);
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$Locals_tmp = substr($Locals_tmp, 10, strlen($Locals_tmp) - 10);
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break;
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}
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if (ord($this->buffer [$frame] { 10 }) & 0x80 && $this->first_frame === FALSE) {
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if ($Global_len == $Locals_len) {
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if ($this->blockCompare($Global_rgb, $Locals_rgb, $Global_len)) {
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$this->image .= ( $Locals_ext . $Locals_img . $Locals_tmp );
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} else {
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$byte = ord($Locals_img { 9 });
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$byte |= 0x80;
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$byte &= 0xF8;
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$byte |= ( ord($this->buffer [0] { 10 }) & 0x07 );
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$Locals_img { 9 } = chr($byte);
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$this->image .= ( $Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp );
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}
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} else {
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$byte = ord($Locals_img { 9 });
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$byte |= 0x80;
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$byte &= 0xF8;
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$byte |= ( ord($this->buffer [$frame] { 10 }) & 0x07 );
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$Locals_img { 9 } = chr($byte);
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$this->image .= ( $Locals_ext . $Locals_img . $Locals_rgb . $Locals_tmp );
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}
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} else {
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$this->image .= ( $Locals_ext . $Locals_img . $Locals_tmp );
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}
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$this->first_frame = FALSE;
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}
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/**
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* Add the gif footer
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*/
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private function addFooter() {
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$this->image .= ";";
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}
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/**
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* Compare gif blocks? What is a block?
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* @param type $GlobalBlock
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* @param type $LocalBlock
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* @param type $Len
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* @return type
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*/
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private function blockCompare($GlobalBlock, $LocalBlock, $Len) {
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for ($i = 0; $i < $Len; $i++) {
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if (
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$GlobalBlock { 3 * $i + 0 } != $LocalBlock { 3 * $i + 0 } ||
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$GlobalBlock { 3 * $i + 1 } != $LocalBlock { 3 * $i + 1 } ||
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$GlobalBlock { 3 * $i + 2 } != $LocalBlock { 3 * $i + 2 }
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) {
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return ( 0 );
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}
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}
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return ( 1 );
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}
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/**
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* No clue
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* @param int $int
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* @return string the char you meant?
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*/
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private function word($int) {
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return ( chr($int & 0xFF) . chr(( $int >> 8 ) & 0xFF) );
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}
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/**
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* Return the animated gif
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* @return type
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*/
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function getAnimation() {
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return $this->image;
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}
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/**
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* Return the animated gif
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* @return type
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*/
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function display() {
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//late footer add
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$this->addFooter();
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header('Content-type:image/gif');
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echo $this->image;
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}
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}

‎fonts/DIGITALDREAM.ttf

28.6 KB
Binary file not shown.

‎fonts/Gotham-Medium.ttf

29.2 KB
Binary file not shown.

‎gif.php

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<?php
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date_default_timezone_set('Australia/NSW');
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require_once 'GIFEncoder.class.php';
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/*
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phpinfo();
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error_reporting(E_ALL); ini_set('display_errors', 1);
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*/
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$time = $_GET['time'];
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$future_date = new DateTime(date('r',strtotime($time)));
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$time_now = time();
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$now = new DateTime(date('r', $time_now));
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$noSeconds = false;
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if(isset($_GET['noseconds']))
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$noSeconds = true;
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$frames = array();
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$delays = array();
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if($noSeconds)
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$imgFile = "img/countdown-bg-noseconds.png";
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else
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$imgFile = "img/countdown-bg-white2.png";
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$image = imagecreatefrompng($imgFile);
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$delay = 100; // milliseconds
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$font = array(
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'size'=>42,
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'angle'=>0,
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'x-offset'=>15,
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'y-offset'=>70,
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//'file'=>'fonts/DIGITALDREAM.ttf',
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'file'=>'fonts/Gotham-Medium.ttf',
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'color'=>imagecolorallocate($image, 0, 0, 0),
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);
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for($i = 0; $i <= 60; $i++){
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$interval = date_diff($future_date, $now);
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if($future_date < $now){
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// Open the first source image and add the text.
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$image = imagecreatefrompng($imgFile);
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$text = $interval->format('00 : 00 : 00 : 00');
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imagettftext ($image , $font['size'] , $font['angle'] , $font['x-offset'] , $font['y-offset'] , $font['color'] , $font['file'], $text );
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ob_start();
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imagegif($image);
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$frames[]=ob_get_contents();
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$delays[]=$delay;
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$loops = 1;
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ob_end_clean();
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break;
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} else {
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// Open the first source image and add the text.
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$image = imagecreatefrompng($imgFile);
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$text = $interval->format('%a : %H : %I : %S');
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// %a is weird in that it doesn’t give you a two digit number
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// check if it starts with a single digit 0-9
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// and prepend a 0 if it does
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if(preg_match('/^[0-9]\ :/', $text)){
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$text = '0'.$text;
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}
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imagettftext ($image , $font['size'] , $font['angle'] , $font['x-offset'] , $font['y-offset'] , $font['color'] , $font['file'], $text );
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ob_start();
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imagegif($image);
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$frames[]=ob_get_contents();
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$delays[]=$delay;
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$loops = 0;
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ob_end_clean();
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}
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$now->modify('+1 second');
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}
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//expire this image instantly
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header( 'Expires: Sat, 26 Jul 1997 05:00:00 GMT' );
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header( 'Last-Modified: ' . gmdate( 'D, d M Y H:i:s' ) . ' GMT' );
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header( 'Cache-Control: no-store, no-cache, must-revalidate' );
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header( 'Cache-Control: post-check=0, pre-check=0', false );
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header( 'Pragma: no-cache' );
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$gif = new AnimatedGif($frames,$delays,$loops);
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$gif->display();

‎img/countdown-bg-white.png

4.68 KB
Loading

‎img/countdown-bg-white2.png

18.3 KB
Loading

‎img/countdown-bg.png

14.8 KB
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‎img/countdown-bg2.gif

3.96 KB
Loading

‎img/countdown-bg2.jpg

7.76 KB
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‎img/countdown-bg2.png

4.56 KB
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‎test.html

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<img src="gif.php?time=tomorrow"/>
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