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 fos.lib.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_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 fos.lib.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 get_extensions(self): if not gl_info.have_context(): warnings.warn("Can't query WGL until a context is created.") return [] try: return wglGetExtensionsStringEXT().split() except MissingFunctionException: return cast(glGetString(GL_EXTENSIONS), c_char_p).value.split()
def match(self, canvas): if not isinstance(canvas, Win32Canvas): raise RuntimeError('Canvas must be instance of Win32Canvas') # Use ARB API if available if (gl_info.have_context() and wgl_info.have_extension('WGL_ARB_pixel_format')): return self._get_arb_pixel_format_matching_configs(canvas) else: return self._get_pixel_format_descriptor_matching_configs(canvas)