# start_t = time.clock()
# im2 = im.tostring("raw", "L", 0, -1)
# print time.clock() - start_t
im = numpy.array(im)
# ID = gl.glGenTextures(1)
gl.glBindTexture(gl.GL_TEXTURE_2D, 1)
gl.glTexImage2D(gl.GL_TEXTURE_2D, 0, gl.GL_LUMINANCE, im_x, im_y, 0, gl.GL_LUMINANCE, gl.GL_UNSIGNED_BYTE, im)
gl.glHint(gl.GL_GENERATE_MIPMAP_HINT, gl.GL_FASTEST)
gl.glGenerateMipmap(gl.GL_TEXTURE_2D)
# gl.getTexImage(gl.GL_TEXTURE_2D, 0, gl.GL_LUMINANCE, gl.GL_UNSIGNED_BYTE)
# z0 = gl.glGetTexImageui(gl.GL_TEXTURE_2D, 0, gl.GL_LUMINANCE)
# z1 = gl.glGetTexImageui(gl.GL_TEXTURE_2D, 1, gl.GL_LUMINANCE)
# print z0, z1
k = 0
while (im.shape[0] > 512):
k+=1
start_t = time.clock()
im = gl.glGetTexImageub(gl.GL_TEXTURE_2D, k, gl.GL_LUMINANCE, outputType=numpy.array)
print im.shape
print time.clock() - start_t
img = fromarray(im)
# img.save('/tmp/pygl_z'+str(k)+'.jpg')
