blender-addons/blenderkit/bg_blender.py
Vilem Duha 526557bba1 BlenderKit: many post-release fixes
Fix for rerequests recursion crash
rename timers
fix manual link
attemt to fix mysterious crashes on some machines by limiting some calls to assetbar operator, and not copying image into it's preview so often
fix search when & was present
add a popup when appending a scene
improve starup dialog with an image
2021-07-26 08:08:10 +02:00

279 lines
9.3 KiB
Python

# ##### BEGIN GPL LICENSE BLOCK #####
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software Foundation,
# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
#
# ##### END GPL LICENSE BLOCK #####
from blenderkit import utils
import bpy
import sys, threading, os
import re
from bpy.props import (
EnumProperty,
)
bg_processes = []
class threadCom: # object passed to threads to read background process stdout info
''' Object to pass data between thread and '''
def __init__(self, eval_path_computing, eval_path_state, eval_path, process_type, proc, location=None, name=''):
# self.obname=ob.name
self.name = name
self.eval_path_computing = eval_path_computing # property that gets written to.
self.eval_path_state = eval_path_state # property that gets written to.
self.eval_path = eval_path # property that gets written to.
self.process_type = process_type
self.outtext = ''
self.proc = proc
self.lasttext = ''
self.message = '' # the message to be sent.
self.progress = 0.0
self.location = location
self.error = False
self.log = ''
def threadread(tcom):
'''reads stdout of background process.
this threads basically waits for a stdout line to come in,
fills the data, dies.'''
found = False
while not found:
if tcom.proc.poll() is not None:
#process terminated
return
inline = tcom.proc.stdout.readline()
# print('readthread', time.time())
inline = str(inline)
s = inline.find('progress{')
if s > -1:
e = inline.find('}')
tcom.outtext = inline[s + 9:e]
found = True
if tcom.outtext.find('%') > -1:
tcom.progress = float(re.findall('\d+\.\d+|\d+', tcom.outtext)[0])
return
if s == -1:
s = inline.find('Remaining')
if s > -1:
# e=inline.find('}')
tcom.outtext = inline[s: s + 18]
found = True
return
if len(inline) > 3:
print(inline, len(inline))
# if inline.find('Error'):
# tcom.error = True
# tcom.outtext = inline[2:]
def progress(text, n=None):
'''function for reporting during the script, works for background operations in the header.'''
# for i in range(n+1):
# sys.stdout.flush()
text = str(text)
if n is None:
n = ''
else:
n = ' ' + ' ' + str(int(n * 1000) / 1000) + '% '
spaces = ' ' * (len(text) + 55)
try:
sys.stdout.write('progress{%s%s}\n' % (text, n))
sys.stdout.flush()
except Exception as e:
print('background progress reporting race condition')
print(e)
# @bpy.app.handlers.persistent
def bg_update():
'''monitoring of background process'''
text = ''
#utils.p('timer search')
# utils.p('start bg_blender timer bg_update')
s = bpy.context.scene
global bg_processes
if len(bg_processes) == 0:
# utils.p('end bg_blender timer bg_update')
return 2
#cleanup dead processes first
remove_processes = []
for p in bg_processes:
if p[1].proc.poll() is not None:
remove_processes.append(p)
for p in remove_processes:
bg_processes.remove(p)
#Parse process output
for p in bg_processes:
# proc=p[1].proc
readthread = p[0]
tcom = p[1]
if not readthread.is_alive():
readthread.join()
# readthread.
estring = None
if tcom.error:
estring = tcom.eval_path_computing + ' = False'
tcom.lasttext = tcom.outtext
if tcom.outtext != '':
tcom.outtext = ''
text =tcom.lasttext.replace("'","")
estring = tcom.eval_path_state + ' = text'
# print(tcom.lasttext)
if 'finished successfully' in tcom.lasttext:
bg_processes.remove(p)
estring = tcom.eval_path_computing + ' = False'
else:
readthread = threading.Thread(target=threadread, args=([tcom]), daemon=True)
readthread.start()
p[0] = readthread
if estring:
try:
exec(estring)
except Exception as e:
print('Exception while reading from background process')
print(e)
# if len(bg_processes) == 0:
# bpy.app.timers.unregister(bg_update)
if len(bg_processes) > 0:
# utils.p('end bg_blender timer bg_update')
return .3
# utils.p('end bg_blender timer bg_update')
return 1.
process_types = (
('UPLOAD', 'Upload', ''),
('THUMBNAILER', 'Thumbnailer', ''),
)
process_sources = (
('MODEL', 'Model', 'set of objects'),
('SCENE', 'Scene', 'set of scenes'),
('HDR', 'HDR', 'HDR image'),
('MATERIAL', 'Material', 'any .blend Material'),
('TEXTURE', 'Texture', 'a texture, or texture set'),
('BRUSH', 'Brush', 'brush, can be any type of blender brush'),
)
class KillBgProcess(bpy.types.Operator):
'''Remove processes in background'''
bl_idname = "object.kill_bg_process"
bl_label = "Kill Background Process"
bl_options = {'REGISTER'}
process_type: EnumProperty(
name="Type",
items=process_types,
description="Type of process",
default="UPLOAD",
)
process_source: EnumProperty(
name="Source",
items=process_sources,
description="Source of process",
default="MODEL",
)
def execute(self, context):
s = bpy.context.scene
cls = bpy.ops.object.convert.__class__
# first do the easy stuff...TODO all cases.
props = utils.get_upload_props()
if self.process_type == 'UPLOAD':
props.uploading = False
if self.process_type == 'THUMBNAILER':
props.is_generating_thumbnail = False
global blenderkit_bg_process
# print('killing', self.process_source, self.process_type)
# then go kill the process. this wasn't working for unsetting props and that was the reason for changing to the method above.
processes = bg_processes
for p in processes:
tcom = p[1]
# print(tcom.process_type, self.process_type)
if tcom.process_type == self.process_type:
source = eval(tcom.eval_path)
kill = False
#TODO HDR - add killing of process
if source.bl_rna.name == 'Object' and self.process_source == 'MODEL':
if source.name == bpy.context.active_object.name:
kill = True
if source.bl_rna.name == 'Scene' and self.process_source == 'SCENE':
if source.name == bpy.context.scene.name:
kill = True
if source.bl_rna.name == 'Image' and self.process_source == 'HDR':
ui_props = bpy.context.scene.blenderkitUI
if source.name == ui_props.hdr_upload_image.name:
kill = False
if source.bl_rna.name == 'Material' and self.process_source == 'MATERIAL':
if source.name == bpy.context.active_object.active_material.name:
kill = True
if source.bl_rna.name == 'Brush' and self.process_source == 'BRUSH':
brush = utils.get_active_brush()
if brush is not None and source.name == brush.name:
kill = True
if kill:
estring = tcom.eval_path_computing + ' = False'
exec(estring)
processes.remove(p)
tcom.proc.kill()
return {'FINISHED'}
def add_bg_process(location=None, name=None, eval_path_computing='', eval_path_state='', eval_path='', process_type='',
process=None):
'''adds process for monitoring'''
global bg_processes
tcom = threadCom(eval_path_computing, eval_path_state, eval_path, process_type, process, location, name)
readthread = threading.Thread(target=threadread, args=([tcom]), daemon=True)
readthread.start()
bg_processes.append([readthread, tcom])
# if not bpy.app.timers.is_registered(bg_update):
# bpy.app.timers.register(bg_update, persistent=True)
def register():
bpy.utils.register_class(KillBgProcess)
user_preferences = bpy.context.preferences.addons['blenderkit'].preferences
if user_preferences.use_timers:
bpy.app.timers.register(bg_update)
def unregister():
bpy.utils.unregister_class(KillBgProcess)
if bpy.app.timers.is_registered(bg_update):
bpy.app.timers.unregister(bg_update)