playlist.php
author Dan
Tue, 23 Dec 2008 20:37:36 -0500
changeset 66 f30ffbf92cdd
parent 44 92dd253f501c
permissions -rw-r--r--
Release: 0.1 alpha 4
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<?php
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/**
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 * Playlist displayer
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 *
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 * Greyhound - real web management for Amarok
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 * Copyright (C) 2008 Dan Fuhry
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 *
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 * This program is Free Software; you can redistribute and/or modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
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 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for details.
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 */
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function amarok_playlist($httpd, $socket)
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{
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  global $theme, $playlist, $allowcontrol;
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  global $use_auth;
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  if ( !session_check() )
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  {
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    $httpd->header('HTTP/1.1 307 Temporary Redirect');
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    $httpd->header('Location: /login');
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    return;
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  }
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  $iphone = ( ( strpos($_SERVER['HTTP_USER_AGENT'], 'iPhone') ||
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       strpos($_SERVER['HTTP_USER_AGENT'], 'iPod') ||
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       strpos($_SERVER['HTTP_USER_AGENT'], 'BlackBerry') ||
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       isset($_GET['m']) )
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       && !isset($_GET['f'])
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       );
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  $theme_id = ( $iphone ) ? 'iphone' : $theme;
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  $smarty = load_theme($theme_id);
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  $active = dcop_action('playlist', 'getActiveIndex');
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  $smarty->assign('theme', $theme_id);
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  $smarty->assign('playlist', $playlist);
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  $smarty->assign('active', $active);
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  $smarty->assign('scripts', array(
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      'ajax.js',
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      'domutils.js',
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      'volume.js',
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      'dom-drag.js',
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      'position.js'
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    ));
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  $smarty->assign('allow_control', $allowcontrol);
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  $smarty->assign('use_auth', $use_auth);
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  $smarty->assign('greyhound_version', GREY_VERSION);
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  $smarty->register_function('sprite', 'smarty_function_sprite');
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  $smarty->display('playlist.tpl');
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}
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function artwork_request_handler($httpd, $socket)
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{
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  global $amarok_home;
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  // get PATH_INFO
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  $pathinfo = @substr(@substr($_SERVER['REQUEST_URI'], 1), @strpos(@substr($_SERVER['REQUEST_URI'], 1), '/')+1);
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  // should we do a collage (for CSS sprites instead of sending hundreds of individual images)?
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  if ( preg_match('/^collage(?:\/([0-9]+))?$/', $pathinfo, $match) )
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  {
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    // default size is 50px per image
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    $collage_size = ( isset($match[1]) ) ? intval($match[1]) : 50;
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    $artwork_dir = "$amarok_home/albumcovers";
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    if ( !file_exists("$artwork_dir/collage_{$collage_size}.png") )
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    {
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      if ( !generate_artwork_collage("$artwork_dir/collage_{$collage_size}.png", $collage_size) )
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      {
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        echo 'Error: generate_artwork_collage() failed';
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        return;
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      }
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    }
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    $target_file = "$artwork_dir/collage_{$collage_size}.png";
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    // we have it now, send the image through
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    $fh = @fopen($target_file, 'r');
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    if ( !$fh )
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      return false;
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    $httpd->header('Content-type: image/png');
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    $httpd->header('Content-length: ' . filesize($target_file));
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    $httpd->header('Expires: Wed, 1 Jan 2020 01:00:00 GMT');
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    // kinda sorta a hack.
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    $headers = implode("\r\n", $httpd->response_headers);
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    $httpd->send_client_headers($socket, $httpd->response_code, $httpd->content_type, $headers);
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    while ( $d = fread($fh, 10240) )
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    {
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      $socket->write($d);
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    }
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    fclose($fh);
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    return;
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  }
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  if ( !isset($_GET['artist']) || !isset($_GET['album']) )
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  {
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    echo 'Please specify artist and album.';
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    return;
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  }
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  // get hash
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  $artwork_hash = md5( strtolower(trim($_GET['artist'])) . strtolower(trim($_GET['album'])) );
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  $artwork_dir = "$amarok_home/albumcovers";
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  if ( file_exists("$artwork_dir/large/$artwork_hash") )
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  {
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    // artwork file found - scale and convert to PNG
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    if ( !is_dir("$artwork_dir/greyhoundthumbnails") )
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    {
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      if ( !@mkdir("$artwork_dir/greyhoundthumbnails") )
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      {
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        return false;
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      }
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    }
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    // check for the scaled cover image
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    $target_file = "$artwork_dir/greyhoundthumbnails/$artwork_hash.png";
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    if ( !file_exists($target_file) )
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    {
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      // not scaled yet, scale to uniform 50x50 image
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      $artwork_filetype = get_image_filetype("$artwork_dir/large/$artwork_hash");
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      if ( !$artwork_filetype )
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      {
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        // image is not supported (PNG, GIF, or JPG required)
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        return false;
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      }
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      // we'll need to copy the existing artwork file to our thumbnail dir to let scale_image() detect the type properly (it doesn't use magic bytes)
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      if ( !copy("$artwork_dir/large/$artwork_hash", "$artwork_dir/greyhoundthumbnails/tmp{$artwork_hash}.$artwork_filetype") )
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      {
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        return false;
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      }
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      // finally, scale the image
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      if ( !scale_image("$artwork_dir/greyhoundthumbnails/tmp{$artwork_hash}.$artwork_filetype", $target_file, 50, 50) )
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      {
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        return false;
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      }
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      // delete our temp file
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      if ( !unlink("$artwork_dir/greyhoundthumbnails/tmp{$artwork_hash}.$artwork_filetype") )
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      {
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        echo 'Couldn\'t delete the temp file';
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        return false;
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      }
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    }
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    // we have it now, send the image through
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    $fh = @fopen($target_file, 'r');
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    if ( !$fh )
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      return false;
40
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25
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    $httpd->header('Content-type: image/png');
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    $httpd->header('Content-length: ' . filesize($target_file));
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    $httpd->header('Expires: Wed, 1 Jan 2020 01:00:00 GMT');
40
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    // kinda sorta a hack.
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    $headers = implode("\r\n", $httpd->response_headers);
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    $httpd->send_client_headers($socket, $httpd->response_code, $httpd->content_type, $headers);
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25
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    while ( !feof($fh) )
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    {
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      $socket->write(fread($fh, 51200));
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    }
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    fclose($fh);
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  }
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  else
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  {
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    // artwork file doesn't exist
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    $ar = htmlspecialchars($_GET['artist']);
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    $al = htmlspecialchars($_GET['album']);
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    $httpd->send_http_error($socket, 404, "The requested artwork file for $ar:$al could not be found on this server.");
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  }
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}
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40
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/**
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 * Generates a collage of all album art for use as a CSS sprite. Also generates a textual .map file in the format of "hash xpos ypos\n"
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 * to allow retrieving positions of images. Requires GD.
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 * @param string Name of the collage file. Map file will be the same filename except with the extension ".map"
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 * @param int Size of each image, in pixels. Artwork images will be stretched to a 1:1 aspect ratio. Optional, defaults to 50.
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 * @return bool True on success, false on failure.
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 */
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function generate_artwork_collage($target_file, $size = 50)
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{
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  // check for required GD functionality
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  if ( !function_exists('imagecopyresampled') || !function_exists('imagepng') )
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    return false;
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  status("generating size $size collage");
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  $stderr = fopen('php://stderr', 'w');
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  if ( !$stderr )
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    // this should really never fail.
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    return false;
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   195
  
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  // import amarok globals
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  global $amarok_home;
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  $artwork_dir = "$amarok_home/albumcovers";
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   199
  
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  // map file path
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  $mapfile = preg_replace('/\.[a-z]+$/', '', $target_file) . '.map';
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  // open map file
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  $maphandle = @fopen($mapfile, 'w');
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  if ( !$maphandle )
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   206
    return false;
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   207
  
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   208
  $mapheader = <<<EOF
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# this artwork collage map gives the locations of various artwork images within the collage
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   210
# format is:
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   211
# hash                           x y
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# x and y are indices, not pixel values (obviously), and hash is the name of the artwork file in large/
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   213
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   214
EOF;
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  fwrite($maphandle, $mapheader);
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   216
  
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  // build a list of existing artwork files
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  $artwork_list = array();
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  if ( $dh = @opendir("$artwork_dir/large") )
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  {
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   221
    while ( $fp = @readdir($dh) )
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   222
    {
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   223
      if ( preg_match('/^[a-f0-9]{32}$/', $fp) )
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   224
      {
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   225
        $artwork_list[] = $fp;
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   226
      }
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   227
    }
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   228
    closedir($dh);
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   229
  }
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   230
  else
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   231
  {
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   232
    return false;
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   233
  }
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   234
  
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  // at least one image?
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   236
  if ( empty($artwork_list) )
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   237
    return false;
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   238
  
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   239
  // asort it to make sure map is predictable
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   240
  asort($artwork_list);
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   241
  
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  // number of columns
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  $cols = 20;
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   244
  // number of rows
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   245
  $rows = ceil( count($artwork_list) / $cols );
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   246
  
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   247
  // image dimensions
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   248
  $image_width  = $cols * $size;
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   249
  $image_height = $rows * $size;
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   250
  
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   251
  // create image
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   252
  $collage = imagecreatetruecolor($image_width, $image_height);
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   253
  
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   254
  // generator loop
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   255
  // start at row 0, column 0
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   256
  $col = -1;
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   257
  $row = 0;
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   258
  $srow = $row + 1;
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   259
  fwrite($stderr, "  -> row $srow of $rows\r");
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   260
  $time_map = microtime(true);
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   261
  foreach ( $artwork_list as $artwork_file )
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   262
  {
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   263
    // calculate where we are
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   264
    $col++;
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   265
    if ( $col == $cols )
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   266
    {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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   267
      // reached column limit, reset $cols and increment row
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   268
      $col = 0;
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   269
      $row++;
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   270
      $srow = $row + 1;
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   271
      fwrite($stderr, "  -> row $srow of $rows\r");
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   272
    }
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   273
    // x and y offset of scaled image
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   274
    $xoff = $col * $size;
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   275
    $yoff = $row * $size;
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   276
    // set offset
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diff changeset
   277
    fwrite($maphandle, "$artwork_file $col $row\n");
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diff changeset
   278
    // load image
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   279
    $createfunc = ( get_image_filetype("$artwork_dir/large/$artwork_file") == 'jpg' ) ? 'imagecreatefromjpeg' : 'imagecreatefrompng';
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   280
    $aw = @$createfunc("$artwork_dir/large/$artwork_file");
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   281
    if ( !$aw )
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diff changeset
   282
    {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   283
      $aw = @imagecreatefromwbmp("$artwork_dir/large/$artwork_file");
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   284
      if ( !$aw )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   285
      {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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   286
        // couldn't load image, silently continue
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diff changeset
   287
        continue;
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diff changeset
   288
      }
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diff changeset
   289
    }
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diff changeset
   290
    list($aw_width, $aw_height) = array(imagesx($aw), imagesy($aw));
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diff changeset
   291
    // scale and position image
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diff changeset
   292
    $result = imagecopyresampled($collage, $aw, $xoff, $yoff, 0, 0, $size, $size, $aw_width, $aw_height);
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diff changeset
   293
    if ( !$result )
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diff changeset
   294
    {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   295
      // couldn't scale image, silently continue
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diff changeset
   296
      continue;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   297
    }
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diff changeset
   298
    // free the temp image
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   299
    imagedestroy($aw);
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diff changeset
   300
  }
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diff changeset
   301
  $time_map = round(1000 * (microtime(true) - $time_map));
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   302
  $time_write = microtime(true);
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diff changeset
   303
  fclose($maphandle);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   304
  fwrite($stderr, "  -> saving image\r");
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diff changeset
   305
  if ( !imagepng($collage, $target_file) )
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diff changeset
   306
    return false;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   307
  imagedestroy($collage);
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diff changeset
   308
  $time_write = round(1000 * (microtime(true) - $time_write));
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   309
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   310
  $avg = round($time_map / count($artwork_list));
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diff changeset
   311
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   312
  status("collage generation complete, returning success; time (ms): map/avg/write $time_map/$avg/$time_write");
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   313
  return true;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
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diff changeset
   314
}
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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parents: 33
diff changeset
   315
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
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diff changeset
   316
/**
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   317
 * Returns an img tag showing artwork from the specified size collage sprite.
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   318
 * @param string Artist
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   319
 * @param string Album
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
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diff changeset
   320
 * @param int Collage size
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
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diff changeset
   321
 * @return string
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   322
 */
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   323
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   324
function get_artwork_sprite($artist, $album, $size = 50)
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   325
{
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   326
  // import amarok globals
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   327
  global $amarok_home;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   328
  $artwork_dir = "$amarok_home/albumcovers";
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   329
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   330
  if ( !is_int($size) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   331
    return '';
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   332
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   333
  // hash of cover
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   334
  $coverid = md5(strtolower(trim($artist)) . strtolower(trim($album)));
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   335
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   336
  $tag = '<img alt=" " src="/spacer.gif" width="' . $size . '" height="' . $size . '" ';
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   337
  if ( file_exists("$artwork_dir/collage_{$size}.map") )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   338
  {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   339
    $mapdata = parse_collage_map("$artwork_dir/collage_{$size}.map");
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   340
    if ( isset($mapdata[$coverid]) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   341
    {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   342
      $css_x = -1 * $size * $mapdata[$coverid][0];
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   343
      $css_y = -1 * $size * $mapdata[$coverid][1];
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   344
      $tag .= "style=\"background-image: url(/artwork/collage/$size); background-repeat: no-repeat; background-position: {$css_x}px {$css_y}px;\" ";
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   345
    }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   346
  }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   347
  $tag .= '/>';
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   348
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   349
  return $tag;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   350
}
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   351
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   352
/**
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   353
 * Parses the specified artwork map file. Return an associative array, keys being the artwork file hashes and values being array(x, y).
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   354
 * @param string Map file
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   355
 * @return array
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   356
 */
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   357
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   358
function parse_collage_map($mapfile)
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   359
{
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   360
  if ( !file_exists($mapfile) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   361
    return array();
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   362
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   363
  $fp = @fopen($mapfile, 'r');
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   364
  if ( !$fp )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   365
    return false;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   366
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   367
  $map = array();
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   368
  while ( $line = fgets($fp) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   369
  {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   370
    // parse out comments
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   371
    $line = trim(preg_replace('/#(.+)$/', '', $line));
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   372
    if ( empty($line) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   373
      continue;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   374
    list($hash, $x, $y) = explode(' ', $line);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   375
    if ( !preg_match('/^[a-f0-9]{32}$/', $hash) || !preg_match('/^[0-9]+$/', $x) || !preg_match('/^[0-9]+$/', $y) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   376
      // invalid line
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   377
      continue;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   378
      
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   379
    // valid line, append map array
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   380
    $map[$hash] = array(
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   381
        intval($x),
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   382
        intval($y)
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   383
      );
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   384
  }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   385
  fclose($fp);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   386
  return $map;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   387
}
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   388
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   389
/**
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   390
 * Finds out if a collage file is outdated (e.g. missing artwork images)
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   391
 * @param int Size of collage
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   392
 * @return bool true if outdated
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   393
 */
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   394
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   395
function collage_is_outdated($size = 50)
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   396
{
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   397
  global $amarok_home;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   398
  $artwork_dir = "$amarok_home/albumcovers";
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   399
  $mapfile = "$artwork_dir/collage_{$size}.map";
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   400
  if ( !file_exists($mapfile) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   401
  {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   402
    // consider it outdated if it doesn't exist
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   403
    return true;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   404
  }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   405
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   406
  // load existing image map
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   407
  $map = parse_collage_map($mapfile);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   408
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   409
  // build a list of existing artwork files
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   410
  $artwork_list = array();
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   411
  if ( $dh = @opendir("$artwork_dir/large") )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   412
  {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   413
    while ( $fp = @readdir($dh) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   414
    {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   415
      if ( preg_match('/^[a-f0-9]{32}$/', $fp) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   416
      {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   417
        // found an artwork file
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   418
        if ( !isset($map[$fp]) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   419
        {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   420
          // this artwork isn't in the map file, return outdated
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   421
          closedir($dh);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   422
          status("size $size collage is outdated");
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   423
          return true;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   424
        }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   425
      }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   426
    }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   427
    closedir($dh);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   428
  }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   429
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   430
  // if we reach here, we haven't found anything missing.
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   431
  return false;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   432
}
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   433
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   434
/**
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   435
 * Smarty function for sprite generation.
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   436
 * @access private
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   437
 */
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   438
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   439
function smarty_function_sprite($params, &$smarty)
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   440
{
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   441
  // don't perform the exhaustive check more than once per execution
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   442
  static $checks_done = array();
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   443
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   444
  if ( empty($params['artist']) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   445
    return 'Error: missing "artist" parameter';
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   446
  if ( empty($params['album']) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   447
    return 'Error: missing "album" parameter';
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   448
  if ( empty($params['size']) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   449
    $params['size'] = 50;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   450
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   451
  $params['size'] = intval($params['size']);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   452
  $size =& $params['size'];
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   453
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   454
  // if the collage file doesn't exist or is missing artwork, renew it
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   455
  // but only perform this check once per execution per size
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   456
  if ( !isset($checks_done[$size]) )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   457
  {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   458
    global $amarok_home;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   459
    $artwork_dir = "$amarok_home/albumcovers";
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   460
    
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   461
    $collage_file = "$artwork_dir/collage_{$size}";
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   462
    $collage_is_good = file_exists("$collage_file.png") && file_exists("$collage_file.map") && !collage_is_outdated($size);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   463
    if ( !$collage_is_good )
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   464
    {
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   465
      generate_artwork_collage("$collage_file.png", $size);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   466
    }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   467
    $checks_done[$size] = true;
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   468
  }
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   469
  
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   470
  return get_artwork_sprite($params['artist'], $params['album'], $params['size']);
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   471
}
bd3372a2afc1 Added artwork spriting support. Artwork is now displayed using a gigantic CSS sprite instead of hundreds of little images. GD required.
Dan
parents: 33
diff changeset
   472