lnyan's picture
Update export_func
5541005
raw history blame
No virus
19.4 kB
import base64
import io
import numpy as np
from PIL import Image
from pyodide import to_js, create_proxy
from js import (
console,
document,
devicePixelRatio,
ImageData,
Uint8ClampedArray,
CanvasRenderingContext2D as Context2d,
requestAnimationFrame,
)
PAINT_SELECTION = "✥"
IMAGE_SELECTION = "🖼️"
BRUSH_SELECTION = "🖌️"
NOP_MODE = 0
PAINT_MODE = 1
IMAGE_MODE = 2
BRUSH_MODE = 3
def hold_canvas():
pass
def prepare_canvas(width, height, canvas) -> Context2d:
ctx = canvas.getContext("2d")
canvas.style.width = f"{width}px"
canvas.style.height = f"{height}px"
canvas.width = width
canvas.height = height
ctx.clearRect(0, 0, width, height)
return ctx
# class MultiCanvas:
# def __init__(self,layer,width=800, height=600) -> None:
# pass
def multi_canvas(layer, width=800, height=600):
lst = [
CanvasProxy(document.querySelector(f"#canvas{i}"), width, height)
for i in range(layer)
]
return lst
class CanvasProxy:
def __init__(self, canvas, width=800, height=600) -> None:
self.canvas = canvas
self.ctx = prepare_canvas(width, height, canvas)
self.width = width
self.height = height
def clear_rect(self, x, y, w, h):
self.ctx.clearRect(x, y, w, h)
def clear(self,):
self.clear_rect(0, 0, self.width, self.height)
def stroke_rect(self, x, y, w, h):
self.ctx.strokeRect(x, y, w, h)
def fill_rect(self, x, y, w, h):
self.ctx.fillRect(x, y, w, h)
def put_image_data(self, image, x, y):
data = Uint8ClampedArray.new(to_js(image.tobytes()))
height, width, _ = image.shape
image_data = ImageData.new(data, width, height)
self.ctx.putImageData(image_data, x, y)
@property
def stroke_style(self):
return self.ctx.strokeStyle
@stroke_style.setter
def stroke_style(self, value):
self.ctx.strokeStyle = value
@property
def fill_style(self):
return self.ctx.strokeStyle
@fill_style.setter
def fill_style(self, value):
self.ctx.fillStyle = value
# RGBA for masking
class InfCanvas:
def __init__(
self,
width,
height,
selection_size=256,
grid_size=32,
patch_size=4096,
test_mode=False,
) -> None:
assert selection_size < min(height, width)
self.width = width
self.height = height
self.canvas = multi_canvas(5, width=width, height=height)
# self.canvas = Canvas(width=width, height=height)
self.view_pos = [0, 0]
self.cursor = [
width // 2 - selection_size // 2,
height // 2 - selection_size // 2,
]
self.data = {}
self.grid_size = grid_size
self.selection_size = selection_size
self.patch_size = patch_size
# note that for image data, the height comes before width
self.buffer = np.zeros((height, width, 4), dtype=np.uint8)
self.sel_buffer = np.zeros((selection_size, selection_size, 4), dtype=np.uint8)
self.sel_buffer_bak = np.zeros(
(selection_size, selection_size, 4), dtype=np.uint8
)
self.sel_dirty = False
self.buffer_dirty = False
self.mouse_pos = [-1, -1]
self.mouse_state = 0
# self.output = widgets.Output()
self.test_mode = test_mode
self.buffer_updated = False
self.image_move_freq = 1
self.show_brush = False
# inpaint pipeline from diffuser
def setup_mouse(self):
self.image_move_cnt = 0
def get_mouse_mode():
mode = document.querySelector("#mode").value
if mode == PAINT_SELECTION:
return PAINT_MODE
elif mode == IMAGE_SELECTION:
return IMAGE_MODE
return BRUSH_MODE
def get_event_pos(event):
canvas = self.canvas[-1].canvas
rect = canvas.getBoundingClientRect()
x = (canvas.width * (event.clientX - rect.left)) / rect.width
y = (canvas.height * (event.clientY - rect.top)) / rect.height
return x, y
def handle_mouse_down(event):
self.mouse_state = get_mouse_mode()
def handle_mouse_out(event):
last_state = self.mouse_state
self.mouse_state = NOP_MODE
self.image_move_cnt = 0
if last_state == IMAGE_MODE:
if True:
self.clear_background()
self.draw_buffer()
self.canvas[2].clear()
self.draw_selection_box()
if self.show_brush:
self.canvas[-2].clear()
self.show_brush = False
def handle_mouse_up(event):
last_state = self.mouse_state
self.mouse_state = NOP_MODE
self.image_move_cnt = 0
if last_state == IMAGE_MODE:
if True:
self.clear_background()
self.draw_buffer()
self.canvas[2].clear()
self.draw_selection_box()
async def handle_mouse_move(event):
x, y = get_event_pos(event)
x0, y0 = self.mouse_pos
xo = x - x0
yo = y - y0
if self.mouse_state == PAINT_MODE:
self.update_cursor(int(xo), int(yo))
if True:
# self.clear_background()
# console.log(self.buffer_updated)
if self.buffer_updated:
self.draw_buffer()
self.buffer_updated = False
self.draw_selection_box()
elif self.mouse_state == IMAGE_MODE:
self.image_move_cnt += 1
self.update_view_pos(int(xo), int(yo))
if self.image_move_cnt == self.image_move_freq:
if True:
self.clear_background()
self.draw_buffer()
self.canvas[2].clear()
self.draw_selection_box()
self.image_move_cnt = 0
elif self.mouse_state == BRUSH_MODE:
if self.sel_dirty:
self.write_selection_to_buffer()
self.canvas[2].clear()
self.buffer_dirty=True
bx0,by0=int(x)-self.grid_size//2,int(y)-self.grid_size//2
bx1,by1=bx0+self.grid_size,by0+self.grid_size
bx0,by0=max(0,bx0),max(0,by0)
bx1,by1=min(self.width,bx1),min(self.height,by1)
self.buffer[by0:by1,bx0:bx1,:]*=0
self.draw_buffer()
self.draw_selection_box()
mode = document.querySelector("#mode").value
if mode == BRUSH_SELECTION:
self.canvas[-2].clear()
self.canvas[-2].fill_style = "#ffffff"
self.canvas[-2].fill_rect(x-self.grid_size//2,y-self.grid_size//2,self.grid_size,self.grid_size)
self.canvas[-2].stroke_rect(x-self.grid_size//2,y-self.grid_size//2,self.grid_size,self.grid_size)
self.show_brush = True
elif self.show_brush:
self.canvas[-2].clear()
self.show_brush = False
self.mouse_pos[0] = x
self.mouse_pos[1] = y
self.canvas[-1].canvas.addEventListener(
"mousedown", create_proxy(handle_mouse_down)
)
self.canvas[-1].canvas.addEventListener(
"mousemove", create_proxy(handle_mouse_move)
)
self.canvas[-1].canvas.addEventListener(
"mouseup", create_proxy(handle_mouse_up)
)
self.canvas[-1].canvas.addEventListener(
"mouseout", create_proxy(handle_mouse_out)
)
def setup_widgets(self):
self.mode_button = widgets.ToggleButtons(
options=[PAINT_SELECTION, IMAGE_SELECTION],
disabled=False,
button_style="",
style={"button_width": "50px", "font_weight": "bold"},
tooltips=["Outpaint region", "Image"],
)
self.test_button = widgets.ToggleButtons(
options=["r", "g", "b"],
disabled=False,
style={"button_width": "50px", "font_weight": "bold", "font_size": "36px"},
)
self.text_input = widgets.Textarea(
value="",
placeholder="input your prompt here",
description="Prompt:",
disabled=False,
)
self.run_button = widgets.Button(
description="Outpaint",
tooltip="Run outpainting",
icon="pen",
button_style="primary",
)
self.export_button = widgets.Button(
description="Export",
tooltip="Export the image",
icon="save",
button_style="success",
)
self.fill_button = widgets.ToggleButtons(
description="Init mode:",
options=[
"patchmatch",
"edge_pad",
"cv2_ns",
"cv2_telea",
"gaussian",
"perlin",
],
disabled=False,
button_style="",
style={"button_width": "80px", "font_weight": "bold"},
)
if self.test_mode:
def test_button_clicked(btn):
# lst.append(tuple(base.cursor))
with self.output:
val = self.test_button.value
if val == "r":
self.fill_selection(
np.tile(
np.array([255, 0, 0, 255], dtype=np.uint8),
(self.selection_size, self.selection_size, 1),
)
)
if val == "g":
self.fill_selection(
np.tile(
np.array([0, 255, 0, 255], dtype=np.uint8),
(self.selection_size, self.selection_size, 1),
)
)
if val == "b":
self.fill_selection(
np.tile(
np.array([0, 0, 255, 255], dtype=np.uint8),
(self.selection_size, self.selection_size, 1),
)
)
if True:
self.clear_background()
self.draw_buffer()
self.draw_selection_box()
self.run_button.on_click(test_button_clicked)
def display(self):
if True:
self.clear_background()
self.draw_buffer()
self.draw_selection_box()
if self.test_mode:
return [
self.test_button,
self.mode_button,
self.canvas,
widgets.HBox([self.run_button, self.text_input]),
self.output,
]
return [
self.fill_button,
self.canvas,
widgets.HBox(
[self.mode_button, self.run_button, self.export_button, self.text_input]
),
self.output,
]
def clear_background(self):
# fake transparent background
h, w, step = self.height, self.width, self.grid_size
stride = step * 2
x0, y0 = self.view_pos
x0 = (-x0) % stride
y0 = (-y0) % stride
# self.canvas.clear()
self.canvas[0].fill_style = "#ffffff"
self.canvas[0].fill_rect(0, 0, w, h)
self.canvas[0].fill_style = "#aaaaaa"
for y in range(y0 - stride, h + step, step):
start = (x0 - stride) if y // step % 2 == 0 else (x0 - step)
for x in range(start, w + step, stride):
self.canvas[0].fill_rect(x, y, step, step)
self.canvas[0].stroke_rect(0, 0, w, h)
def update_view_pos(self, xo, yo):
if abs(xo) + abs(yo) == 0:
return
if self.sel_dirty:
self.write_selection_to_buffer()
if self.buffer_dirty:
self.buffer2data()
self.view_pos[0] -= xo
self.view_pos[1] -= yo
self.data2buffer()
# self.read_selection_from_buffer()
def update_cursor(self, xo, yo):
if abs(xo) + abs(yo) == 0:
return
if self.sel_dirty:
self.write_selection_to_buffer()
self.cursor[0] += xo
self.cursor[1] += yo
self.cursor[0] = max(min(self.width - self.selection_size, self.cursor[0]), 0)
self.cursor[1] = max(min(self.height - self.selection_size, self.cursor[1]), 0)
# self.read_selection_from_buffer()
def data2buffer(self):
x, y = self.view_pos
h, w = self.height, self.width
# fill four parts
for i in range(4):
pos_src, pos_dst, data = self.select(x, y, i)
xs0, xs1 = pos_src[0]
ys0, ys1 = pos_src[1]
xd0, xd1 = pos_dst[0]
yd0, yd1 = pos_dst[1]
self.buffer[yd0:yd1, xd0:xd1, :] = data[ys0:ys1, xs0:xs1, :]
def buffer2data(self):
x, y = self.view_pos
h, w = self.height, self.width
# fill four parts
for i in range(4):
pos_src, pos_dst, data = self.select(x, y, i)
xs0, xs1 = pos_src[0]
ys0, ys1 = pos_src[1]
xd0, xd1 = pos_dst[0]
yd0, yd1 = pos_dst[1]
data[ys0:ys1, xs0:xs1, :] = self.buffer[yd0:yd1, xd0:xd1, :]
self.buffer_dirty = False
def select(self, x, y, idx):
w, h = self.width, self.height
lst = [(0, 0), (0, h), (w, 0), (w, h)]
if idx == 0:
x0, y0 = x % self.patch_size, y % self.patch_size
x1 = min(x0 + w, self.patch_size)
y1 = min(y0 + h, self.patch_size)
elif idx == 1:
y += h
x0, y0 = x % self.patch_size, y % self.patch_size
x1 = min(x0 + w, self.patch_size)
y1 = max(y0 - h, 0)
elif idx == 2:
x += w
x0, y0 = x % self.patch_size, y % self.patch_size
x1 = max(x0 - w, 0)
y1 = min(y0 + h, self.patch_size)
else:
x += w
y += h
x0, y0 = x % self.patch_size, y % self.patch_size
x1 = max(x0 - w, 0)
y1 = max(y0 - h, 0)
xi, yi = x // self.patch_size, y // self.patch_size
cur = self.data.setdefault(
(xi, yi), np.zeros((self.patch_size, self.patch_size, 4), dtype=np.uint8)
)
x0_img, y0_img = lst[idx]
x1_img = x0_img + x1 - x0
y1_img = y0_img + y1 - y0
sort = lambda a, b: ((a, b) if a < b else (b, a))
return (
(sort(x0, x1), sort(y0, y1)),
(sort(x0_img, x1_img), sort(y0_img, y1_img)),
cur,
)
def draw_buffer(self):
self.canvas[1].clear()
self.canvas[1].put_image_data(self.buffer, 0, 0)
def fill_selection(self, img):
self.sel_buffer = img
self.sel_dirty = True
def draw_selection_box(self):
x0, y0 = self.cursor
size = self.selection_size
if self.sel_dirty:
self.canvas[2].clear()
self.canvas[2].put_image_data(self.sel_buffer, x0, y0)
self.canvas[-1].clear()
self.canvas[-1].stroke_style = "#0a0a0a"
self.canvas[-1].stroke_rect(x0, y0, size, size)
self.canvas[-1].stroke_style = "#ffffff"
self.canvas[-1].stroke_rect(x0 - 1, y0 - 1, size + 2, size + 2)
self.canvas[-1].stroke_style = "#000000"
self.canvas[-1].stroke_rect(x0 - 2, y0 - 2, size + 4, size + 4)
def write_selection_to_buffer(self):
x0, y0 = self.cursor
x1, y1 = x0 + self.selection_size, y0 + self.selection_size
self.buffer[y0:y1, x0:x1] = self.sel_buffer
self.sel_dirty = False
self.sel_buffer = self.sel_buffer_bak.copy()
self.buffer_dirty = True
self.buffer_updated = True
# self.canvas[2].clear()
def read_selection_from_buffer(self):
x0, y0 = self.cursor
x1, y1 = x0 + self.selection_size, y0 + self.selection_size
self.sel_buffer = self.buffer[y0:y1, x0:x1]
self.sel_dirty = False
def base64_to_numpy(self, base64_str):
try:
data = base64.b64decode(str(base64_str))
pil = Image.open(io.BytesIO(data))
arr = np.array(pil)
ret = arr
except:
ret = np.tile(
np.array([255, 0, 0, 255], dtype=np.uint8),
(self.selection_size, self.selection_size, 1),
)
return ret
def numpy_to_base64(self, arr):
out_pil = Image.fromarray(arr)
out_buffer = io.BytesIO()
out_pil.save(out_buffer, format="PNG")
out_buffer.seek(0)
base64_bytes = base64.b64encode(out_buffer.read())
base64_str = base64_bytes.decode("ascii")
return base64_str
def export(self):
if self.sel_dirty:
self.write_selection_to_buffer()
if self.buffer_dirty:
self.buffer2data()
xmin, xmax, ymin, ymax = 0, 0, 0, 0
if len(self.data.keys()) == 0:
return np.zeros(
(self.selection_size, self.selection_size, 4), dtype=np.uint8
)
for xi, yi in self.data.keys():
buf = self.data[(xi, yi)]
if buf.sum() > 0:
xmin = min(xi, xmin)
xmax = max(xi, xmax)
ymin = min(yi, ymin)
ymax = max(yi, ymax)
yn = ymax - ymin + 1
xn = xmax - xmin + 1
image = np.zeros(
(yn * self.patch_size, xn * self.patch_size, 4), dtype=np.uint8
)
for xi, yi in self.data.keys():
buf = self.data[(xi, yi)]
if buf.sum() > 0:
y0 = (yi - ymin) * self.patch_size
x0 = (xi - xmin) * self.patch_size
image[y0 : y0 + self.patch_size, x0 : x0 + self.patch_size] = buf
ylst, xlst = image[:, :, -1].nonzero()
if len(ylst) > 0:
yt, xt = ylst.min(), xlst.min()
yb, xb = ylst.max(), xlst.max()
image = image[yt : yb + 1, xt : xb + 1]
return image
else:
return np.zeros(
(self.selection_size, self.selection_size, 4), dtype=np.uint8
)