glfw.py 文件源码

def wrap(self, gammaramp):
        '''
        Wraps a nested python sequence.
        '''
        red, green, blue = gammaramp
        size = min(len(red), len(green), len(blue))
        array_type = ctypes.c_ushort*size
        self.size = ctypes.c_uint(size)
        self.red_array = array_type()
        self.green_array = array_type()
        self.blue_array = array_type()
        for i in range(self.size):
            self.red_array[i] = int(red[i]*65535)
            self.green_array[i] = int(green[i]*65535)
            self.blue_array[i] = int(blue[i]*65535)
        pointer_type = ctypes.POINTER(ctypes.c_ushort)
        self.red = ctypes.cast(self.red_array, pointer_type)
        self.green = ctypes.cast(self.green_array, pointer_type)
        self.blue = ctypes.cast(self.blue_array, pointer_type)