class GLUQuadric(_simple.GLUquadric):
"""Implementation class for GLUQuadric classes in PyOpenGL"""
FUNCTION_TYPE = PLATFORM.functionTypeFor(PLATFORM.GLU)
CALLBACK_TYPES = {
# mapping from "which" GLU enumeration to a ctypes function type
_simple.GLU_ERROR:
FUNCTION_TYPE(None, _simple.GLenum)
}
def addCallback(self, which, function):
"""Register a callback for the quadric object
At the moment only GLU_ERROR is supported by OpenGL, but
we allow for the possibility of more callbacks in the future...
"""
callbackType = self.CALLBACK_TYPES.get(which)
if not callbackType:
raise ValueError(
"""Don"t have a registered callback type for %r""" % (which, ))
if not isinstance(function, callbackType):
cCallback = callbackType(function)
else:
cCallback = function
PLATFORM.GLU.gluQuadricCallback(self, which, cCallback)
# XXX catch errors!
if getattr(self, "callbacks", None) is None:
self.callbacks = {}
self.callbacks[which] = cCallback
return cCallback
def pullExtensions( self ):
from OpenGL.platform import PLATFORM
wglGetCurrentDC = PLATFORM.OpenGL.wglGetCurrentDC
wglGetCurrentDC.restyle = HDC
try:
dc = wglGetCurrentDC()
proc_address = PLATFORM.getExtensionProcedure( 'wglGetExtensionsStringARB' )
wglGetExtensionStringARB = PLATFORM.functionTypeFor( PLATFORM.WGL )(
c_char_p,
HDC,
)( proc_address )
except TypeError as err:
return None
except AttributeError as err:
return []
else:
return wglGetExtensionStringARB(dc).split()
def pullExtensions( self ):
from OpenGL.platform import PLATFORM
wglGetCurrentDC = PLATFORM.OpenGL.wglGetCurrentDC
wglGetCurrentDC.restyle = HDC
try:
dc = wglGetCurrentDC()
proc_address = PLATFORM.getExtensionProcedure( 'wglGetExtensionsStringARB' )
wglGetExtensionStringARB = PLATFORM.functionTypeFor( PLATFORM.WGL )(
c_char_p,
HDC,
)( proc_address )
except TypeError as err:
return None
except AttributeError as err:
return []
else:
return wglGetExtensionStringARB(dc).split()
class GLUnurbs(glustruct.GLUStruct, simple.GLUnurbs):
"""GLU Nurbs structure with oor and callback storage support
IMPORTANT NOTE: the texture coordinate callback receives a raw ctypes
data-pointer, as without knowing what type of evaluation is being done
(1D or 2D) we cannot safely determine the size of the array to convert
it. This is a limitation of the C implementation. To convert to regular
data-pointer, just call yourNurb.ptrAsArray( ptr, size, arrays.GLfloatArray )
with the size of data you expect.
"""
FUNCTION_TYPE = PLATFORM.functionTypeFor(PLATFORM.GLU)
CALLBACK_FUNCTION_REGISTRARS = {
# mapping from "which" to a function that should take 3 parameters,
# the nurb, the which and the function pointer...
}
CALLBACK_TYPES = {
# mapping from "which" GLU enumeration to a ctypes function type
simple.GLU_NURBS_BEGIN:
FUNCTION_TYPE(None, simple.GLenum),
simple.GLU_NURBS_BEGIN_DATA:
FUNCTION_TYPE(None, simple.GLenum, ctypes.POINTER(simple.GLvoid)),
simple.GLU_NURBS_VERTEX:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat)),
simple.GLU_NURBS_VERTEX_DATA:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat),
ctypes.POINTER(simple.GLvoid)),
simple.GLU_NURBS_NORMAL:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat)),
simple.GLU_NURBS_NORMAL_DATA:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat),
ctypes.POINTER(simple.GLvoid)),
simple.GLU_NURBS_COLOR:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat)),
simple.GLU_NURBS_COLOR_DATA:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat),
ctypes.POINTER(simple.GLvoid)),
simple.GLU_NURBS_TEXTURE_COORD:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat)),
simple.GLU_NURBS_TEXTURE_COORD_DATA:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLfloat),
ctypes.POINTER(simple.GLvoid)),
simple.GLU_NURBS_END:
FUNCTION_TYPE(None),
simple.GLU_NURBS_END_DATA:
FUNCTION_TYPE(None, ctypes.POINTER(simple.GLvoid)),
simple.GLU_NURBS_ERROR:
FUNCTION_TYPE(
None,
simple.GLenum,
),
}
WRAPPER_METHODS = {
simple.GLU_NURBS_BEGIN: None,
simple.GLU_NURBS_BEGIN_DATA: '_justOOR',
simple.GLU_NURBS_VERTEX: '_vec3',
simple.GLU_NURBS_VERTEX_DATA: '_vec3',
simple.GLU_NURBS_NORMAL: '_vec3',
simple.GLU_NURBS_NORMAL_DATA: '_vec3',
simple.GLU_NURBS_COLOR: '_vec4',
simple.GLU_NURBS_COLOR_DATA: '_vec4',
simple.GLU_NURBS_TEXTURE_COORD: '_tex',
simple.GLU_NURBS_TEXTURE_COORD_DATA: '_tex',
simple.GLU_NURBS_END: None,
simple.GLU_NURBS_END_DATA: '_justOOR',
simple.GLU_NURBS_ERROR: None,
}
def _justOOR(self, function):
"""Just do OOR on the last argument..."""
def getOOR(*args):
args = args[:-1] + (self.originalObject(args[-1]), )
return function(*args)
return getOOR
def _vec3(self, function, size=3):
"""Convert first arg to size-element array, do OOR on arg2 if present"""
def vec(*args):
vec = self.ptrAsArray(args[0], size, arrays.GLfloatArray)
if len(args) > 1:
oor = self.originalObject(args[1])
return function(vec, oor)
else:
return function(vec)
return vec
def _vec4(self, function):
"""Size-4 vector version..."""
return self._vec3(function, 4)
def _tex(self, function):
"""Texture coordinate callback
NOTE: there is no way for *us* to tell what size the array is, you will
get back a raw data-point, not an array, as you do for all other callback
types!!!
"""
def oor(*args):
if len(args) > 1:
oor = self.originalObject(args[1])
return function(args[0], oor)
else:
return function(args[0])
return oor
('GLbyte', GL_BYTE),
('GLshort', GL_SHORT),
('GLint', GL_INT),
('GLubyte', GL_UNSIGNED_BYTE),
('GLushort', GL_UNSIGNED_SHORT),
('GLuint', GL_UNSIGNED_INT),
('GLenum', GL_UNSIGNED_INT),
]
from OpenGL.platform import PLATFORM as _p
GLDEBUGPROCARB = GLDEBUGPROCKHR = GLDEBUGPROC = _p.DEFAULT_FUNCTION_TYPE(
void,
GLenum, # source,
GLenum, #type,
GLuint, # id
GLenum, # severity
GLsizei, # length
ctypes.c_char_p, # message
GLvoidp, # userParam
)
class _cl_context(ctypes.Structure):
"""Placeholder/empty structure for _cl_context"""
class _cl_event(ctypes.Structure):
"""Placeholder/empty structure for _cl_event"""
GLDEBUGPROCAMD = _p.DEFAULT_FUNCTION_TYPE(
class GLUtesselator(glustruct.GLUStruct, _simple.GLUtesselator):
"""Implementation class for GLUTessellator structures in OpenGL-ctypes"""
FUNCTION_TYPE = PLATFORM.functionTypeFor(PLATFORM.GLU)
CALLBACK_TYPES = {
# mapping from "which" GLU enumeration to a ctypes function type
_simple.GLU_TESS_BEGIN:
FUNCTION_TYPE(None, _simple.GLenum),
_simple.GLU_TESS_BEGIN_DATA:
FUNCTION_TYPE(None, _simple.GLenum, ctypes.c_void_p),
_simple.GLU_TESS_EDGE_FLAG:
FUNCTION_TYPE(None, _simple.GLboolean),
_simple.GLU_TESS_EDGE_FLAG_DATA:
FUNCTION_TYPE(None, _simple.GLboolean, ctypes.c_void_p),
_simple.GLU_TESS_VERTEX:
FUNCTION_TYPE(None, ctypes.c_void_p),
_simple.GLU_TESS_VERTEX_DATA:
FUNCTION_TYPE(None, ctypes.c_void_p, ctypes.c_void_p),
_simple.GLU_TESS_END:
FUNCTION_TYPE(None),
_simple.GLU_TESS_END_DATA:
FUNCTION_TYPE(None, ctypes.c_void_p),
_simple.GLU_TESS_COMBINE:
FUNCTION_TYPE(None, ctypes.POINTER(_simple.GLdouble),
ctypes.POINTER(ctypes.c_void_p),
ctypes.POINTER(_simple.GLfloat),
ctypes.POINTER(ctypes.c_void_p)),
_simple.GLU_TESS_COMBINE_DATA:
FUNCTION_TYPE(
None,
ctypes.POINTER(_simple.GLdouble),
ctypes.POINTER(ctypes.c_void_p),
ctypes.POINTER(_simple.GLfloat),
ctypes.POINTER(ctypes.c_void_p),
ctypes.c_void_p,
),
_simple.GLU_TESS_ERROR:
FUNCTION_TYPE(None, _simple.GLenum),
_simple.GLU_TESS_ERROR_DATA:
FUNCTION_TYPE(None, _simple.GLenum, ctypes.c_void_p),
_simple.GLU_ERROR:
FUNCTION_TYPE(None, _simple.GLenum)
}
WRAPPER_METHODS = {
_simple.GLU_TESS_BEGIN_DATA: 'dataWrapper',
_simple.GLU_TESS_EDGE_FLAG_DATA: 'dataWrapper',
_simple.GLU_TESS_VERTEX: 'vertexWrapper',
_simple.GLU_TESS_VERTEX_DATA: 'vertexWrapper',
_simple.GLU_TESS_END_DATA: 'dataWrapper',
_simple.GLU_TESS_COMBINE: 'combineWrapper',
_simple.GLU_TESS_COMBINE_DATA: 'combineWrapper',
_simple.GLU_TESS_ERROR_DATA: 'dataWrapper',
}
def gluTessVertex(self, location, data=None):
"""Add a vertex to this tessellator, storing data for later lookup"""
vertexCache = getattr(self, 'vertexCache', None)
if vertexCache is None:
self.vertexCache = []
vertexCache = self.vertexCache
location = arrays.GLdoubleArray.asArray(location, GL_1_1.GL_DOUBLE)
if arrays.GLdoubleArray.arraySize(location) != 3:
raise ValueError(
"""Require 3 doubles for array location, got: %s""" %
(location, ))
oorValue = self.noteObject(data)
vp = ctypes.c_void_p(oorValue)
self.vertexCache.append(location)
return gluTessVertexBase(self, location, vp)
def gluTessBeginPolygon(self, data):
"""Note the object pointer to return it as a Python object"""
return _simple.gluTessBeginPolygon(
self, ctypes.c_void_p(self.noteObject(data)))
def combineWrapper(self, function):
"""Wrap a Python function with ctypes-compatible wrapper for combine callback
For a Python combine callback, the signature looks like this:
def combine(
GLdouble coords[3],
void *vertex_data[4],
GLfloat weight[4]
):
return data
While the C signature looks like this:
void combine(
GLdouble coords[3],
void *vertex_data[4],
GLfloat weight[4],
void **outData
)
"""
if (function is not None) and (not hasattr(function, '__call__')):
raise TypeError("""Require a callable callback, got: %s""" %
(function, ))
def wrap(coords, vertex_data, weight, outData, *args):
"""The run-time wrapper around the function"""
coords = self.ptrAsArray(coords, 3, arrays.GLdoubleArray)
weight = self.ptrAsArray(weight, 4, arrays.GLfloatArray)
# find the original python objects for vertex data
vertex_data = [
self.originalObject(vertex_data[i]) for i in range(4)
]
args = tuple([self.originalObject(x) for x in args])
try:
result = function(coords, vertex_data, weight, *args)
except Exception as err:
raise err.__class__(
"""Failure during combine callback %r with args( %s,%s,%s,*%s):\n%s"""
% (
function,
coords,
vertex_data,
weight,
args,
str(err),
))
outP = ctypes.c_void_p(self.noteObject(result))
if outData:
outData[0] = outP
else:
raise RuntimeError("Null outData passed to callback")
return None
return wrap
def dataWrapper(self, function):
"""Wrap a function which only has the one data-pointer as last arg"""
if (function is not None) and (not hasattr(function, '__call__')):
raise TypeError("""Require a callable callback, got: %s""" %
(function, ))
def wrap(*args):
"""Just return the original object for polygon_data"""
args = args[:-1] + (self.originalObject(args[-1]), )
try:
return function(*args)
except Exception as err:
err.args += (function, args)
raise
return wrap
def dataWrapper2(self, function):
"""Wrap a function which has two data-pointers as last args"""
if (function is not None) and (not hasattr(function, '__call__')):
raise TypeError("""Require a callable callback, got: %s""" %
(function, ))
def wrap(*args):
"""Just return the original object for polygon_data"""
args = args[:-2] + (
self.originalObject(args[-2]),
self.originalObject(args[-1]),
)
try:
return function(*args)
except Exception as err:
err.args += (function, args)
raise
return wrap
def vertexWrapper(self, function):
"""Converts a vertex-pointer into an OOR vertex for processing"""
if (function is not None) and (not hasattr(function, '__call__')):
raise TypeError("""Require a callable callback, got: %s""" %
(function, ))
def wrap(vertex, data=None):
"""Just return the original object for polygon_data"""
vertex = self.originalObject(vertex)
try:
if data is not None:
data = self.originalObject(data)
return function(vertex, data)
else:
return function(vertex)
except Exception as err:
err.args += (function, (vertex, data))
raise
return wrap
ARRAY_TYPE_TO_CONSTANT = [
('GLclampd', GL_DOUBLE),
('GLclampf', GL_FLOAT),
('GLfloat', GL_FLOAT),
('GLdouble', GL_DOUBLE),
('GLbyte', GL_BYTE),
('GLshort', GL_SHORT),
('GLint', GL_INT),
('GLubyte', GL_UNSIGNED_BYTE),
('GLushort', GL_UNSIGNED_SHORT),
('GLuint', GL_UNSIGNED_INT),
('GLenum', GL_UNSIGNED_INT),
]
from OpenGL.platform import PLATFORM as _p
_FUNCTION_TYPE = _p.functionTypeFor(_p.GL)
GLDEBUGPROCARB = GLDEBUGPROC = _FUNCTION_TYPE(
void,
GLenum, # source,
GLenum, #type,
GLuint, # id
GLenum, # severity
GLsizei, # length
ctypes.c_char_p, # message
GLvoidp, # userParam
)
class _cl_context( ctypes.Structure ):
"""Placeholder/empty structure for _cl_context"""
class _cl_event( ctypes.Structure ):
ARRAY_TYPE_TO_CONSTANT = [
('GLclampd', GL_DOUBLE),
('GLclampf', GL_FLOAT),
('GLfloat', GL_FLOAT),
('GLdouble', GL_DOUBLE),
('GLbyte', GL_BYTE),
('GLshort', GL_SHORT),
('GLint', GL_INT),
('GLubyte', GL_UNSIGNED_BYTE),
('GLushort', GL_UNSIGNED_SHORT),
('GLuint', GL_UNSIGNED_INT),
('GLenum', GL_UNSIGNED_INT),
]
from OpenGL.platform import PLATFORM
_FUNCTION_TYPE = PLATFORM.functionTypeFor(PLATFORM.GL)
GLDEBUGPROCARB = _FUNCTION_TYPE(
void,
GLenum, # source,
GLenum, #type,
GLuint, # id
GLenum, # severity
GLsizei, # length
ctypes.c_char_p, # message
GLvoidp, # userParam
)
class _cl_context( ctypes.Structure ):
"""Placeholder/empty structure for _cl_context"""
class _cl_event( ctypes.Structure ):
ARRAY_TYPE_TO_CONSTANT = [
('GLclampd', GL_DOUBLE),
('GLclampf', GL_FLOAT),
('GLfloat', GL_FLOAT),
('GLdouble', GL_DOUBLE),
('GLbyte', GL_BYTE),
('GLshort', GL_SHORT),
('GLint', GL_INT),
('GLubyte', GL_UNSIGNED_BYTE),
('GLushort', GL_UNSIGNED_SHORT),
('GLuint', GL_UNSIGNED_INT),
('GLenum', GL_UNSIGNED_INT),
]
from OpenGL.platform import PLATFORM as _p
_FUNCTION_TYPE = _p.functionTypeFor(_p.GL)
GLDEBUGPROCARB = GLDEBUGPROC = _FUNCTION_TYPE(
void,
GLenum, # source,
GLenum, #type,
GLuint, # id
GLenum, # severity
GLsizei, # length
ctypes.c_char_p, # message
GLvoidp, # userParam
)
class _cl_context(ctypes.Structure):
"""Placeholder/empty structure for _cl_context"""
