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DragGAN
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DragGAN/visualizer_drag.py

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# Copyright (c) 2021, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
#
# NVIDIA CORPORATION and its licensors retain all intellectual property
# and proprietary rights in and to this software, related documentation
# and any modifications thereto. Any use, reproduction, disclosure or
# distribution of this software and related documentation without an express
# license agreement from NVIDIA CORPORATION is strictly prohibited.
import click
import os
import multiprocessing
import numpy as np
import torch
import imgui
import dnnlib
from gui_utils import imgui_window
from gui_utils import imgui_utils
from gui_utils import gl_utils
from gui_utils import text_utils
from viz import renderer
from viz import pickle_widget
from viz import latent_widget
from viz import drag_widget
from viz import capture_widget
#----------------------------------------------------------------------------
class Visualizer(imgui_window.ImguiWindow):
def __init__(self, capture_dir=None):
super().__init__(title='DragGAN', window_width=3840, window_height=2160)
# Internals.
self._last_error_print = None
self._async_renderer = AsyncRenderer()
self._defer_rendering = 0
self._tex_img = None
self._tex_obj = None
self._mask_obj = None
self._image_area = None
self._status = dnnlib.EasyDict()
# Widget interface.
self.args = dnnlib.EasyDict()
self.result = dnnlib.EasyDict()
self.pane_w = 0
self.label_w = 0
self.button_w = 0
self.image_w = 0
self.image_h = 0
# Widgets.
self.pickle_widget = pickle_widget.PickleWidget(self)
self.latent_widget = latent_widget.LatentWidget(self)
self.drag_widget = drag_widget.DragWidget(self)
self.capture_widget = capture_widget.CaptureWidget(self)
if capture_dir is not None:
self.capture_widget.path = capture_dir
# Initialize window.
self.set_position(0, 0)
self._adjust_font_size()
self.skip_frame() # Layout may change after first frame.
def close(self):
super().close()
if self._async_renderer is not None:
self._async_renderer.close()
self._async_renderer = None
def add_recent_pickle(self, pkl, ignore_errors=False):
self.pickle_widget.add_recent(pkl, ignore_errors=ignore_errors)
def load_pickle(self, pkl, ignore_errors=False):
self.pickle_widget.load(pkl, ignore_errors=ignore_errors)
def print_error(self, error):
error = str(error)
if error != self._last_error_print:
print('\n' + error + '\n')
self._last_error_print = error
def defer_rendering(self, num_frames=1):
self._defer_rendering = max(self._defer_rendering, num_frames)
def clear_result(self):
self._async_renderer.clear_result()
def set_async(self, is_async):
if is_async != self._async_renderer.is_async:
self._async_renderer.set_async(is_async)
self.clear_result()
if 'image' in self.result:
self.result.message = 'Switching rendering process...'
self.defer_rendering()
def _adjust_font_size(self):
old = self.font_size
self.set_font_size(min(self.content_width / 120, self.content_height / 60))
if self.font_size != old:
self.skip_frame() # Layout changed.
def check_update_mask(self, **args):
update_mask = False
if 'pkl' in self._status:
if self._status.pkl != args['pkl']:
update_mask = True
self._status.pkl = args['pkl']
if 'w0_seed' in self._status:
if self._status.w0_seed != args['w0_seed']:
update_mask = True
self._status.w0_seed = args['w0_seed']
return update_mask
def capture_image_frame(self):
self.capture_next_frame()
captured_frame = self.pop_captured_frame()
captured_image = None
if captured_frame is not None:
x1, y1, w, h = self._image_area
captured_image = captured_frame[y1:y1+h, x1:x1+w, :]
return captured_image
def get_drag_info(self):
seed = self.latent_widget.seed
points = self.drag_widget.points
targets = self.drag_widget.targets
mask = self.drag_widget.mask
w = self._async_renderer._renderer_obj.w
return seed, points, targets, mask, w
def draw_frame(self):
self.begin_frame()
self.args = dnnlib.EasyDict()
self.pane_w = self.font_size * 18
self.button_w = self.font_size * 5
self.label_w = round(self.font_size * 4.5)
# Detect mouse dragging in the result area.
if self._image_area is not None:
if not hasattr(self.drag_widget, 'width'):
self.drag_widget.init_mask(self.image_w, self.image_h)
clicked, down, img_x, img_y = imgui_utils.click_hidden_window(
'##image_area', self._image_area[0], self._image_area[1], self._image_area[2], self._image_area[3], self.image_w, self.image_h)
self.drag_widget.action(clicked, down, img_x, img_y)
# Begin control pane.
imgui.set_next_window_position(0, 0)
imgui.set_next_window_size(self.pane_w, self.content_height)
imgui.begin('##control_pane', closable=False, flags=(imgui.WINDOW_NO_TITLE_BAR | imgui.WINDOW_NO_RESIZE | imgui.WINDOW_NO_MOVE))
# Widgets.
expanded, _visible = imgui_utils.collapsing_header('Network & latent', default=True)
self.pickle_widget(expanded)
self.latent_widget(expanded)
expanded, _visible = imgui_utils.collapsing_header('Drag', default=True)
self.drag_widget(expanded)
expanded, _visible = imgui_utils.collapsing_header('Capture', default=True)
self.capture_widget(expanded)
# Render.
if self.is_skipping_frames():
pass
elif self._defer_rendering > 0:
self._defer_rendering -= 1
elif self.args.pkl is not None:
self._async_renderer.set_args(**self.args)
result = self._async_renderer.get_result()
if result is not None:
self.result = result
if 'stop' in self.result and self.result.stop:
self.drag_widget.stop_drag()
if 'points' in self.result:
self.drag_widget.set_points(self.result.points)
if 'init_net' in self.result:
if self.result.init_net:
self.drag_widget.reset_point()
# Display.
max_w = self.content_width - self.pane_w
max_h = self.content_height
pos = np.array([self.pane_w + max_w / 2, max_h / 2])
if 'image' in self.result:
# Reset mask after loading a new pickle or changing seed.
if self.check_update_mask(**self.args):
h, w, _ = self.result.image.shape
self.drag_widget.init_mask(w, h)
if self._tex_img is not self.result.image:
self._tex_img = self.result.image
if self._tex_obj is None or not self._tex_obj.is_compatible(image=self._tex_img):
self._tex_obj = gl_utils.Texture(image=self._tex_img, bilinear=False, mipmap=False)
else:
self._tex_obj.update(self._tex_img)
self.image_h, self.image_w = self._tex_obj.height, self._tex_obj.width
zoom = min(max_w / self._tex_obj.width, max_h / self._tex_obj.height)
zoom = np.floor(zoom) if zoom >= 1 else zoom
self._tex_obj.draw(pos=pos, zoom=zoom, align=0.5, rint=True)
if self.drag_widget.show_mask and hasattr(self.drag_widget, 'mask'):
mask = ((1-self.drag_widget.mask.unsqueeze(-1)) * 255).to(torch.uint8)
if self._mask_obj is None or not self._mask_obj.is_compatible(image=self._tex_img):
self._mask_obj = gl_utils.Texture(image=mask, bilinear=False, mipmap=False)
else:
self._mask_obj.update(mask)
self._mask_obj.draw(pos=pos, zoom=zoom, align=0.5, rint=True, alpha=0.15)
if self.drag_widget.mode in ['flexible', 'fixed']:
posx, posy = imgui.get_mouse_pos()
if posx >= self.pane_w:
pos_c = np.array([posx, posy])
gl_utils.draw_circle(center=pos_c, radius=self.drag_widget.r_mask * zoom, alpha=0.5)
rescale = self._tex_obj.width / 512 * zoom
for point in self.drag_widget.targets:
pos_x = self.pane_w + max_w / 2 + (point[1] - self.image_w//2) * zoom
pos_y = max_h / 2 + (point[0] - self.image_h//2) * zoom
gl_utils.draw_circle(center=np.array([pos_x, pos_y]), color=[0,0,1], radius=9 * rescale)
for point in self.drag_widget.points:
pos_x = self.pane_w + max_w / 2 + (point[1] - self.image_w//2) * zoom
pos_y = max_h / 2 + (point[0] - self.image_h//2) * zoom
gl_utils.draw_circle(center=np.array([pos_x, pos_y]), color=[1,0,0], radius=9 * rescale)
for point, target in zip(self.drag_widget.points, self.drag_widget.targets):
t_x = self.pane_w + max_w / 2 + (target[1] - self.image_w//2) * zoom
t_y = max_h / 2 + (target[0] - self.image_h//2) * zoom
p_x = self.pane_w + max_w / 2 + (point[1] - self.image_w//2) * zoom
p_y = max_h / 2 + (point[0] - self.image_h//2) * zoom
gl_utils.draw_arrow(p_x, p_y, t_x, t_y, l=8 * rescale, width = 3 * rescale)
imshow_w = int(self._tex_obj.width * zoom)
imshow_h = int(self._tex_obj.height * zoom)
self._image_area = [int(self.pane_w + max_w / 2 - imshow_w / 2), int(max_h / 2 - imshow_h / 2), imshow_w, imshow_h]
if 'error' in self.result:
self.print_error(self.result.error)
if 'message' not in self.result:
self.result.message = str(self.result.error)
if 'message' in self.result:
tex = text_utils.get_texture(self.result.message, size=self.font_size, max_width=max_w, max_height=max_h, outline=2)
tex.draw(pos=pos, align=0.5, rint=True, color=1)
# End frame.
self._adjust_font_size()
imgui.end()
self.end_frame()
#----------------------------------------------------------------------------
class AsyncRenderer:
def __init__(self):
self._closed = False
self._is_async = False
self._cur_args = None
self._cur_result = None
self._cur_stamp = 0
self._renderer_obj = None
self._args_queue = None
self._result_queue = None
self._process = None
def close(self):
self._closed = True
self._renderer_obj = None
if self._process is not None:
self._process.terminate()
self._process = None
self._args_queue = None
self._result_queue = None
@property
def is_async(self):
return self._is_async
def set_async(self, is_async):
self._is_async = is_async
def set_args(self, **args):
assert not self._closed
args2 = args.copy()
args_mask = args2.pop('mask')
if self._cur_args:
_cur_args = self._cur_args.copy()
cur_args_mask = _cur_args.pop('mask')
else:
_cur_args = self._cur_args
# if args != self._cur_args:
if args2 != _cur_args:
if self._is_async:
self._set_args_async(**args)
else:
self._set_args_sync(**args)
self._cur_args = args
def _set_args_async(self, **args):
if self._process is None:
self._args_queue = multiprocessing.Queue()
self._result_queue = multiprocessing.Queue()
try:
multiprocessing.set_start_method('spawn')
except RuntimeError:
pass
self._process = multiprocessing.Process(target=self._process_fn, args=(self._args_queue, self._result_queue), daemon=True)
self._process.start()
self._args_queue.put([args, self._cur_stamp])
def _set_args_sync(self, **args):
if self._renderer_obj is None:
self._renderer_obj = renderer.Renderer()
self._cur_result = self._renderer_obj.render(**args)
def get_result(self):
assert not self._closed
if self._result_queue is not None:
while self._result_queue.qsize() > 0:
result, stamp = self._result_queue.get()
if stamp == self._cur_stamp:
self._cur_result = result
return self._cur_result
def clear_result(self):
assert not self._closed
self._cur_args = None
self._cur_result = None
self._cur_stamp += 1
@staticmethod
def _process_fn(args_queue, result_queue):
renderer_obj = renderer.Renderer()
cur_args = None
cur_stamp = None
while True:
args, stamp = args_queue.get()
while args_queue.qsize() > 0:
args, stamp = args_queue.get()
if args != cur_args or stamp != cur_stamp:
result = renderer_obj.render(**args)
if 'error' in result:
result.error = renderer.CapturedException(result.error)
result_queue.put([result, stamp])
cur_args = args
cur_stamp = stamp
#----------------------------------------------------------------------------
@click.command()
@click.argument('pkls', metavar='PATH', nargs=-1)
@click.option('--capture-dir', help='Where to save screenshot captures', metavar='PATH', default=None)
@click.option('--browse-dir', help='Specify model path for the \'Browse...\' button', metavar='PATH')
def main(
pkls,
capture_dir,
browse_dir
):
"""Interactive model visualizer.
Optional PATH argument can be used specify which .pkl file to load.
"""
viz = Visualizer(capture_dir=capture_dir)
if browse_dir is not None:
viz.pickle_widget.search_dirs = [browse_dir]
# List pickles.
if len(pkls) > 0:
for pkl in pkls:
viz.add_recent_pickle(pkl)
viz.load_pickle(pkls[0])
else:
pretrained = [
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-afhqcat-512x512.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-afhqdog-512x512.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-afhqv2-512x512.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-afhqwild-512x512.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-brecahad-512x512.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-celebahq-256x256.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-cifar10-32x32.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-ffhq-1024x1024.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-ffhq-256x256.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-ffhq-512x512.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-ffhqu-1024x1024.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-ffhqu-256x256.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-lsundog-256x256.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-metfaces-1024x1024.pkl',
'https://api.ngc.nvidia.com/v2/models/nvidia/research/stylegan2/versions/1/files/stylegan2-metfacesu-1024x1024.pkl'
]
# Populate recent pickles list with pretrained model URLs.
for url in pretrained:
viz.add_recent_pickle(url)
# Run.
while not viz.should_close():
viz.draw_frame()
viz.close()
#----------------------------------------------------------------------------
if __name__ == "__main__":
main()
#----------------------------------------------------------------------------
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