RE: BUG: pygame.image.save(screen) with pyopengl 3.x Re: [pygame] PyOpenGL Screenshots

2008-06-02 Thread Nicholas Dudfield 
Hi,

pygame.image.save() of gl Surfaces is still a problem on windows, causing
segfaults.

I commited a test called image__save_gl_surface_test.py 

cheers.


-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of René Dudfield
Sent: Monday, June 02, 2008 12:35 PM
To: pygame-users@seul.org
Subject: Re: BUG: pygame.image.save(screen) with pyopengl 3.x Re: [pygame]
PyOpenGL Screenshots

hi,

I fixed this on the weekend.  I stopped using pyopengl to get
glReadPixels (since pyopengl 3.x broke the glReadPixels API), and
instead loaded the gl functions dynamically with C.

Committed revision 1261.

You can get auto-built binaries for windows/mac osx here if needed:
http://thorbrian.com/pygame/builds.php

cheers,



On Wed, May 7, 2008 at 2:47 PM, René Dudfield [EMAIL PROTECTED] wrote:
 Added a bug to the subject.

 cu,

 On Wed, May 7, 2008 at 2:44 PM, René Dudfield [EMAIL PROTECTED] wrote:
 looks like pyopengl 3.x returns a numpy array now instead of a string
  by default... which breaks pygame.image.save on gl with pyopengl 3.x.

  Here's a work around screenshot function for gl.


  def save_screen(screen, filename):

 def readScreen(x, y, width, height):
  Read in the screen information in the area specified 
 glFinish()
 glPixelStorei(GL_PACK_ALIGNMENT, 4)
 glPixelStorei(GL_PACK_ROW_LENGTH, 0)
 glPixelStorei(GL_PACK_SKIP_ROWS, 0)
 glPixelStorei(GL_PACK_SKIP_PIXELS, 0)

 data = glReadPixels(x, y, width, height, GL_RGB,
GL_UNSIGNED_BYTE)
 if hasattr(data, tostring):
 data = data.tostring()

 return data
 def saveImageData(width, height, data, filename):
  Save image data 
 surface = pygame.image.fromstring(data, (width, height), 'RGB',
1)
 pygame.image.save(surface, filename)

 data = readScreen(0,0, screen.get_width(), screen.get_height())
 saveImageData(screen.get_width(), screen.get_height(), data,
filename)





  On Wed, May 7, 2008 at 2:27 PM, René Dudfield [EMAIL PROTECTED] wrote:
   hi,
  
glReadPixels, make a surface, then use pygame.image.save()
  
Then use ffmpeg, or vlc etc to make a movie out of still frames.
  
cheers,

BUG: pygame.image.save(screen) with pyopengl 3.x Re: [pygame] PyOpenGL Screenshots

2008-05-06 Thread René Dudfield 
Added a bug to the subject.

cu,

On Wed, May 7, 2008 at 2:44 PM, René Dudfield [EMAIL PROTECTED] wrote:
 looks like pyopengl 3.x returns a numpy array now instead of a string
  by default... which breaks pygame.image.save on gl with pyopengl 3.x.

  Here's a work around screenshot function for gl.


  def save_screen(screen, filename):

 def readScreen(x, y, width, height):
  Read in the screen information in the area specified 
 glFinish()
 glPixelStorei(GL_PACK_ALIGNMENT, 4)
 glPixelStorei(GL_PACK_ROW_LENGTH, 0)
 glPixelStorei(GL_PACK_SKIP_ROWS, 0)
 glPixelStorei(GL_PACK_SKIP_PIXELS, 0)

 data = glReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE)
 if hasattr(data, tostring):
 data = data.tostring()

 return data
 def saveImageData(width, height, data, filename):
  Save image data 
 surface = pygame.image.fromstring(data, (width, height), 'RGB', 1)
 pygame.image.save(surface, filename)

 data = readScreen(0,0, screen.get_width(), screen.get_height())
 saveImageData(screen.get_width(), screen.get_height(), data, filename)





  On Wed, May 7, 2008 at 2:27 PM, René Dudfield [EMAIL PROTECTED] wrote:
   hi,
  
glReadPixels, make a surface, then use pygame.image.save()
  
Then use ffmpeg, or vlc etc to make a movie out of still frames.
  
cheers,