PyOpenGL多纹理错误-无效操作

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OpenGL.error.GLError: GLError(
    err = 1282,
    description = b'invalid operation',
    baseOperation = glClear,
    cArguments = (16640,)
)

Surface = pygame.display.set_mode((WIDTH, HEIGHT),  pygame.OPENGL)
glViewport(0, 0, WIDTH, HEIGHT)
glMatrixMode(GL_PROJECTION)
glLoadIdentity()
gluOrtho2D(-8.0, 8.0, -6.0, 6.0)
glMatrixMode(GL_MODELVIEW)
glLoadIdentity()
glShadeModel(GL_SMOOTH)
glClearColor(0.0, 0.0, 0.0, 0.0)
glClearDepth(1.0)
glDisable(GL_DEPTH_TEST)
glDisable(GL_LIGHTING)
glDepthFunc(GL_LEQUAL)
glHint(GL_PERSPECTIVE_CORRECTION_HINT, GL_NICEST)
glEnable(GL_BLEND)

class Texture():
    # simple texture class
    # designed for 32 bit png images (with alpha channel)
    def __init__(self,fileName):
        self.texID=0
        self.LoadTexture(fileName)
    def LoadTexture(self,fileName): 
            textureSurface = pygame.image.load(fileName).convert_alpha()
            textureData = pygame.image.tostring(textureSurface, "RGBA", True)
            self.w, self.h = textureSurface.get_size()
            self.texID=glGenTextures(1)
            glBindTexture(GL_TEXTURE_2D, self.texID)
            glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_LINEAR)
            glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_LINEAR)
            glTexImage2D( GL_TEXTURE_2D, 0, GL_RGBA, textureSurface.get_width(), 
                         textureSurface.get_height(), 0, GL_RGBA, GL_UNSIGNED_BYTE, 
                         textureData )
        except Exception as E:
            print(E)
            print ("can't open the texture: %s"%(fileName))
    def __del__(self):
        glDeleteTextures(self.texID)
    def get_width(self):
        return self.w
    def get_height(self):
        return self.h

glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT)
glLoadIdentity()