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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 os
import re
import numpy as np
import imgui
import PIL.Image
from gui_utils import imgui_utils
from . import renderer
#----------------------------------------------------------------------------
class CaptureWidget:
def __init__(self, viz):
self.viz = viz
self.path = os.path.abspath(os.path.join(os.path.dirname(__file__), '..', '_screenshots'))
self.dump_image = False
self.dump_gui = False
self.defer_frames = 0
self.disabled_time = 0
def dump_png(self, image):
viz = self.viz
try:
_height, _width, channels = image.shape
assert channels in [1, 3]
assert image.dtype == np.uint8
os.makedirs(self.path, exist_ok=True)
file_id = 0
for entry in os.scandir(self.path):
if entry.is_file():
match = re.fullmatch(r'(\d+).*', entry.name)
if match:
file_id = max(file_id, int(match.group(1)) + 1)
if channels == 1:
pil_image = PIL.Image.fromarray(image[:, :, 0], 'L')
else:
pil_image = PIL.Image.fromarray(image, 'RGB')
pil_image.save(os.path.join(self.path, f'{file_id:05d}.png'))
except:
viz.result.error = renderer.CapturedException()
@imgui_utils.scoped_by_object_id
def __call__(self, show=True):
viz = self.viz
if show:
with imgui_utils.grayed_out(self.disabled_time != 0):
imgui.text('Capture')
imgui.same_line(viz.label_w)
_changed, self.path = imgui_utils.input_text('##path', self.path, 1024,
flags=(imgui.INPUT_TEXT_AUTO_SELECT_ALL | imgui.INPUT_TEXT_ENTER_RETURNS_TRUE),
width=(-1 - viz.button_w * 2 - viz.spacing * 2),
help_text='PATH')
if imgui.is_item_hovered() and not imgui.is_item_active() and self.path != '':
imgui.set_tooltip(self.path)
imgui.same_line()
if imgui_utils.button('Save image', width=viz.button_w, enabled=(self.disabled_time == 0 and 'image' in viz.result)):
self.dump_image = True
self.defer_frames = 2
self.disabled_time = 0.5
imgui.same_line()
if imgui_utils.button('Save GUI', width=-1, enabled=(self.disabled_time == 0)):
self.dump_gui = True
self.defer_frames = 2
self.disabled_time = 0.5
self.disabled_time = max(self.disabled_time - viz.frame_delta, 0)
if self.defer_frames > 0:
self.defer_frames -= 1
elif self.dump_image:
if 'image' in viz.result:
self.dump_png(viz.result.image)
self.dump_image = False
elif self.dump_gui:
viz.capture_next_frame()
self.dump_gui = False
captured_frame = viz.pop_captured_frame()
if captured_frame is not None:
self.dump_png(captured_frame)
#----------------------------------------------------------------------------
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