def link_GL(name, restype, argtypes, requires=None, suggestions=None): try: func = getattr(gl_lib, name) func.restype = restype func.argtypes = argtypes decorate_function(func, name) return func except AttributeError: # Not in opengl32.dll. Try and get a pointer from WGL. try: fargs = (restype,) + tuple(argtypes) ftype = ctypes.WINFUNCTYPE(*fargs) if _have_get_proc_address: from pyglet.gl import gl_info if gl_info.have_context(): address = wglGetProcAddress(name) if address: func = cast(address, ftype) decorate_function(func, name) return func else: # Insert proxy until we have a context return WGLFunctionProxy(name, ftype, requires, suggestions) except: pass return missing_function(name, requires, suggestions)
def link_GLU(name, restype, argtypes, requires=None, suggestions=None): try: func = getattr(glu_lib, name) func.restype = restype func.argtypes = argtypes decorate_function(func, name) return func except AttributeError: return missing_function(name, requires, suggestions)
def resolve(self): from pyglet.gl import current_context if not current_context: raise Exception( 'Call to function "%s" before GL context created' % self.name) address = wglGetProcAddress(asbytes(self.name)) if cast(address, POINTER(c_int)): # check cast because address is func self.func = cast(address, self.ftype) decorate_function(self.func, self.name) else: self.func = missing_function( self.name, self.requires, self.suggestions)
def resolve(self): from pyglet.gl import current_context if not current_context: raise Exception('Call to function "%s" before GL context created' % self.name) address = wglGetProcAddress(asbytes(self.name)) if cast(address, POINTER(c_int)): # check cast because address is func self.func = cast(address, self.ftype) decorate_function(self.func, self.name) else: self.func = missing_function(self.name, self.requires, self.suggestions)
def __call__(self, *args, **kwargs): from pyglet.gl import current_context if not current_context: raise Exception('Call to function "%s" before GL context created' % self.name) address = wglGetProcAddress(asbytes(self.name)) if cast(address, POINTER(c_int)): # check cast because address is func self.func = cast(address, self.ftype) decorate_function(self.func, self.name) else: self.func = missing_function(self.name, self.requires, self.suggestions) self.__class__ = makeWGLFunction(self.func) return self.func(*args, **kwargs)
def __call__(self, *args, **kwargs): if self.func: return self.func(*args, **kwargs) from pyglet.gl import current_context if not current_context: raise Exception('Call to function "%s" before GL context created' % self.name) address = wglGetProcAddress(asbytes(self.name)) if cast(address, POINTER(c_int)): # check cast because address is func self.func = cast(address, self.ftype) decorate_function(self.func, self.name) else: self.func = missing_function(self.name, self.requires, self.suggestions) result = self.func(*args, **kwargs) return result
def link_GL(name, restype, argtypes, requires=None, suggestions=None): try: func = getattr(gl_lib, name) func.restype = restype func.argtypes = argtypes decorate_function(func, name) return func except AttributeError, e: if _have_getprocaddress: # Fallback if implemented but not in ABI bname = cast(pointer(create_string_buffer(name)), POINTER(c_ubyte)) addr = glXGetProcAddressARB(bname) if addr: ftype = CFUNCTYPE(*((restype,) + tuple(argtypes))) func = cast(addr, ftype) decorate_function(func, name) return func
def __call__(self, *args, **kwargs): if self.func: return self.func(*args, **kwargs) from pyglet.gl import gl_info if not gl_info.have_context(): raise Exception('Call to function "%s" before GL context created' % self.name) address = wglGetProcAddress(self.name) if cast(address, POINTER(c_int)): # check cast because address is func self.func = cast(address, self.ftype) decorate_function(self.func, self.name) else: self.func = missing_function(self.name, self.requires, self.suggestions) result = self.func(*args, **kwargs) return result