[open] Error: Source and destination surfaces need the same format. ????

Comments

• sebastiaan

  March 2014 edited 10:18AM

  Hi,

  Could you post the full error message, which you can find in the debug window? Please also include the relevant script, if the error results from an inline_script, and information about the operating system and back-end that you're using.

  Cheers!
  Sebastiaan

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• pshahim

  March 2014 edited March 2014

  This is the message displayed in the debug window:

  Python 2.6.1
  Type "help()", "copyright()", "credits()" or "license()" for more information.
  Type "modules()" for details about installed modules and version information.
  Use the "print [msg]" statement in inline_script items to print to this debug window.
  >>> 
  openexp.sampler._legacy.init_sound(): sampling freq = 48000, buffer size = 512
  openexp._canvas.legacy.init_display(): enabling hardware surface
  openexp._canvas.legacy.init_display(): enabling double buffering
  openexp._canvas.legacy.init_display(): video mode ok
  experiment.init_log(): using 'F:/defaultlog.csv' as logfile (ascii)
  experiment.run(): experiment started at Mon Mar 31 14:19:15 2014
  Traceback (most recent call last):
    File "G:\Programmatuur\opensesameportable-0.26-pre6-1-win32\opensesame-0.26\libqtopensesame\qtopensesame.py", line 1647, in run_experiment
    File "F:\opensesameportable-0.26-4\opensesame-0.26\libopensesame\experiment.py", line 258, in run
      self.items[self.start].run()
    File "F:\opensesameportable-0.26-4\opensesame-0.26\libopensesame\sequence.py", line 59, in run
      self.experiment.items[item].run()
    File "F:\opensesameportable-0.26-4\opensesame-0.26\libopensesame\loop.py", line 152, in run
      if _item.prepare():
    File "F:\opensesameportable-0.26-4\opensesame-0.26\libopensesame\sequence.py", line 119, in prepare
      if not self.experiment.items[_item].prepare():
    File "F:\opensesameportable-0.26-4\opensesame-0.26\libopensesame\sketchpad.py", line 184, in prepare
      self.canvas.image(self.experiment.get_file(_item["file"]), _item["center"] == 1, _item["x"], _item["y"], _item["scale"])
    File "F:\opensesameportable-0.26-4\opensesame-0.26\openexp\_canvas\legacy.py", line 572, in image
      int(surface.get_height()*scale)))
  ValueError: Source and destination surfaces need the same format.
  >>> 
  

  We are using an inline script but I don't know if thats the problem, however, this is the inline script were using:

  # we will need to import the library that
  # we will use to play the sound
  import pygame
  
  # first, we check if it is initialized; if it is
  # not, we initialize it
  if not pygame.mixer.get_init():
      pygame.mixer.init()
  
  # next, we will need to specify the sound
  # file (NOTE: this has to be added to your
  # file pool!
  sound_name = "5-0.wav" # change to your own filename
  sound_path = exp.get_file(sound_name)
  
  # now we initialize the sound; this means
  # we prepare it so that it can be played
  exp.sound = pygame.mixer.Sound(sound_path)
  
  # finally, play the sound! (the -1 indicates
  # that it should play infinitely)
  exp.sound.play(-1)
  
• sebastiaan

  March 2014 edited 10:18AM

  Ok, that's a weird error indeed. As a first step, I would see if you still get this error with the most recent version of OpenSesame. Right now you're using 0.26, which is relatively ancient (almost two years old):

  • http://osdoc.cogsci.nl/getting-opensesame/download/

  I think there's a good chance that updating will resolve the issue, even though, to be honest, I have no clue what causes it. If an update doesn't resolve things, we'll take it from there.

  Cheers!

  
  
  Check out SigmundAI.eu for our OpenSesame AI assistant!
  
• Edwin

  March 2014 edited 10:18AM

  As a potential temporary workaround: could you check if the 'psycho' back-end provides the same error?
• hanzh

  December 2018 edited December 2018

  Hi,

  I am having the same error with the latest version of OpenSesame. I am able to run the experiment full screen using expyriment and psychopy backend but not the legacy backend.

  Here is my experiment https://drive.google.com/file/d/1aTYxVVqzueYsp-ih2bEcFO9VHK9LfWxH/view?usp=sharing

  Thanks!
  Han
• eduard

  December 2018

  Hi Han,

  Maybe a new issue for that. The discussion is almost 5 years old, so it is highly unlikely that the issue is caused by the same thing.

  Thanks,

  Eduard