All Unit tests
Current file: C:\code\midiparser\src\Midi\Event\PitchBendEvent.php
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       1                 : <?php                                                                                                
       2                 :                                                                                                      
       3                 :     /**                                                                                              
       4                 :      * \Midi\Event\PitchBendEvent                                                                    
       5                 :      *                                                                                               
       6                 :      * @package    Midi                                                                              
       7                 :      * @subpackage Event                                                                             
       8                 :      * @copyright  © 2009 Tommy Montgomery <http://phpmidiparser.com/>                               
       9                 :      * @since      1.0                                                                               
      10                 :      */                                                                                              
      11                 :                                                                                                      
      12                 :     namespace Midi\Event;                                                                            
      13                 :                                                                                                      
      14                 :     /**                                                                                              
      15                 :      * Represents the pitch bend channel event                                                       
      16                 :      *                                                                                               
      17                 :      * @package    Midi                                                                              
      18                 :      * @subpackage Event                                                                             
      19                 :      * @since      1.0                                                                               
      20                 :      */                                                                                              
      21               1 :     class PitchBendEvent extends ChannelEvent {                                                      
      22                 :                                                                                                      
      23                 :         /**                                                                                          
      24                 :          * @since 1.0                                                                                
      25                 :          * @uses  pitchBendToCents()                                                                 
      26                 :          *                                                                                           
      27                 :          * @return string                                                                            
      28                 :          */                                                                                          
      29                 :         public function getParamDescription() {                                                      
      30               1 :             $cents = self::pitchBendToCents($this->param1, $this->param2);                           
      31               1 :             if ($cents > 0) {                                                                        
      32               1 :                 $cents = '+' . $cents;                                                               
      33               1 :             }                                                                                        
      34                 :                                                                                                      
      35               1 :             return $cents . ' cents';                                                                
      36                 :         }                                                                                            
      37                 :                                                                                                      
      38                 :         /**                                                                                          
      39                 :          * Converts the internal MIDI pitch bend value to                                            
      40                 :          * cents (100ths of a whole tone)                                                            
      41                 :          *                                                                                           
      42                 :          * @since 1.0                                                                                
      43                 :          *                                                                                           
      44                 :          * @param  int $param1 16-bit integer                                                        
      45                 :          * @param  int $param2 16-bit integer                                                        
      46                 :          * @return int Return value is between -100 (one whole tone down) and 100 (one whole tone up)
      47                 :          */                                                                                          
      48                 :         public static function pitchBendToCents($param1, $param2) {                                  
      49               1 :             $param1 &= 0x0FFF;                                                                       
      50               1 :             $param2 = ($param2 & 0x0FFF) << 2;                                                       
      51               1 :             $total = $param2 | $param1;                                                              
      52                 :                                                                                                      
      53               1 :             $total -= 8192;                                                                          
      54               1 :             $cents = round($total / 81.92);                                                          
      55               1 :             return $cents;                                                                           
      56                 :         }                                                                                            
      57                 :                                                                                                      
      58                 :         /**                                                                                          
      59                 :          * @since 1.0                                                                                
      60                 :          * @uses  EventType::PITCH_BEND                                                              
      61                 :          *                                                                                           
      62                 :          * @return int                                                                               
      63                 :          */                                                                                          
      64                 :         public function getType() {                                                                  
      65               1 :             return EventType::PITCH_BEND;                                                            
      66                 :         }                                                                                            
      67                 :                                                                                                      
      68                 :     }                                                                                                
      69                 :                                                                                                      

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