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#
# copyright_notice
#
'''opengltk exception processing
'''
__all__ = ()
from extent import _gllib
from extent._glulib import gluErrorString
class GLerror( StandardError):
def __init__( self, *errs):
self.errs = errs
apply( StandardError.__init__, [self] + map( gluErrorString, errs))
##errmap = {
## _gllib.GL_NO_ERROR: lambda x: SystemError( gluErrorString( x)),
## _gllib.GL_INVALID_ENUM: lambda x: ValueError( gluErrorString( x)),
### _gllib.GL_INVALID_OPERATION: lambda x: ValueError( gluErrorString( x)),
## _gllib.GL_INVALID_VALUE: lambda x: ValueError( gluErrorString( x)),
## _gllib.GL_OUT_OF_MEMORY: lambda x: MemoryError( gluErrorString( x)),
## }
## from utilplus import customvalue
## opengltk_exception_maxerrs = customvalue.get( 'opengltk_exception_maxerrs', 10)
opengltk_exception_maxerrs = 10
def processglerror( errcode):
'''callback from C function opengltk_processerror()
'''
errs = [errcode]
othererr = _gllib.glGetError()
while othererr and othererr != _gllib.GL_INVALID_OPERATION: # glGetError pb
errs.append( othererr)
if opengltk_exception_maxerrs < len( errs):
raise SystemError( 'opengltk_exception_maxerrs reached',
map( gluErrorString, errs))
othererr = _gllib.glGetError()
raise apply( GLerror, errs)
class GLwarning( RuntimeWarning):
pass
def gluErrorCallback( errorCode):
'''default callback for glu error functions
'''
import warnings
warnings.warn( gluErrorString( errorCode), GLwarning)
class Glxerror( RuntimeError):
def __init__( self, code):
self.code = code
RuntimeError.__init__( self, code)
def __repr__( self):
return `self.code`
def __str__( self):
from opengltk.extent import glxlib
return {
glxlib.GLX_NO_EXTENSION: 'dpy does not support the GLX extension',
glxlib.GLX_BAD_SCREEN: 'the screen of vis does not correspond'
' to a screen',
glxlib.GLX_BAD_ATTRIBUTE: 'attrib is not a valid GLX attribute',
glxlib.GLX_BAD_VISUAL: 'vis does nott support GLX and an attribute'
' other than GLX_USE_GL is requested',
}[ self.code]
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