class Viewer(object):
def __init__(self, height=84, width=84, resize_ratio=1):
from pyglet.gl import glEnable, glBlendFunc
from pyglet.gl import GL_BLEND, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA
from pyglet import window, image
from pygarrayimage.arrayimage import ArrayInterfaceImage
self.width = width
self.height = height
self.resize_ratio = resize_ratio
self.window = window.Window(width=int(width * resize_ratio),
height=int(height * resize_ratio),
visible=False,
resizable=True)
self.arr = np.zeros(
(int(height * resize_ratio), int(width * resize_ratio)),
dtype=np.uint8)
self.aii = ArrayInterfaceImage(self.arr)
self.img = self.aii.texture
checks = image.create(32, 32, image.CheckerImagePattern())
self.background = image.TileableTexture.create_for_image(checks)
self.window.set_visible()
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
def render(self, new_arr):
assert new_arr.shape == (
self.height, self.width
), "the array shape {0} should be consistent with stipulated shape {1}!".format(
new_arr.shape, (self.height, self.width))
if self.resize_ratio != 1:
new_arr = np.repeat(np.repeat(new_arr, int(self.resize_ratio), 0),
int(self.resize_ratio), 1)
self.window.dispatch_events()
self.background.blit_tiled(0, 0, 0, self.window.width,
self.window.height)
self.img.blit(0, 0, 0)
self.window.flip()
np.place(self.arr, self.arr >= -1, new_arr.astype('uint8')[::-1, :])
self.aii.dirty(
) # dirty the ArrayInterfaceImage because the data changed
def close(self):
self.window.close()
img = aii.texture
checks = image.create(32, 32, image.CheckerImagePattern())
background = image.TileableTexture.create_for_image(checks)
w.width = img.width
w.height = img.height
w.set_visible()
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
i=0
while not w.has_exit:
w.dispatch_events()
background.blit_tiled(0, 0, 0, w.width, w.height)
img.blit(0, 0, 0)
w.flip()
if filename is None and 1:
# modify numpy array in-place
arr.fill(i)
aii.dirty() # dirty the ArrayInterfaceImage because the data changed
i=(i+1)%256
if i == 1 and 0:
arr = numpy.ones_like( arr ) # create a new array
aii.view_new_array(arr) # switch ArrayInterfaceImage to view the new array
img = aii.texture
checks = image.create(32, 32, image.CheckerImagePattern())
background = image.TileableTexture.create_for_image(checks)
w.width = img.width
w.height = img.height
w.set_visible()
glEnable(GL_BLEND)
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA)
i = 0
while not w.has_exit:
w.dispatch_events()
background.blit_tiled(0, 0, 0, w.width, w.height)
img.blit(0, 0, 0)
w.flip()
if filename is None and 1:
# modify numpy array in-place
arr.fill(i)
aii.dirty() # dirty the ArrayInterfaceImage because the data changed
i = (i + 1) % 256
if i == 1 and 0:
arr = numpy.ones_like(arr) # create a new array
aii.view_new_array(arr) # switch ArrayInterfaceImage to view the new array