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"""See node."""
import random
from datetime import datetime
from .constants import get_category, get_name
from .log import log_node_warn, log_node_info
# Some extension must be setting a seed as server-generated seeds were not random. We'll set a new
# seed and use that state going forward.
initial_random_state = random.getstate()
random.seed(datetime.now().timestamp())
rgthree_seed_random_state = random.getstate()
random.setstate(initial_random_state)
def new_random_seed():
""" Gets a new random seed from the rgthree_seed_random_state and resetting the previous state."""
global rgthree_seed_random_state
prev_random_state = random.getstate()
random.setstate(rgthree_seed_random_state)
seed = random.randint(1, 1125899906842624)
rgthree_seed_random_state = random.getstate()
random.setstate(prev_random_state)
return seed
class RgthreeSeed:
"""Seed node."""
NAME = get_name('Seed')
CATEGORY = get_category()
@classmethod
def INPUT_TYPES(cls): # pylint: disable = invalid-name, missing-function-docstring
return {
"required": {
"seed": ("INT", {
"default": 0,
"min": -1125899906842624,
"max": 1125899906842624
}),
},
"hidden": {
"prompt": "PROMPT",
"extra_pnginfo": "EXTRA_PNGINFO",
"unique_id": "UNIQUE_ID",
},
}
RETURN_TYPES = ("INT",)
RETURN_NAMES = ("SEED",)
FUNCTION = "main"
@classmethod
def IS_CHANGED(cls, seed, prompt=None, extra_pnginfo=None, unique_id=None):
"""Forces a changed state if we happen to get a special seed, as if from the API directly."""
if seed in (-1, -2, -3):
# This isn't used, but a different value than previous will force it to be "changed"
return new_random_seed()
return seed
def main(self, seed=0, prompt=None, extra_pnginfo=None, unique_id=None):
"""Returns the passed seed on execution."""
# We generate random seeds on the frontend in the seed node before sending the workflow in for
# many reasons. However, if we want to use this in an API call without changing the seed before
# sending, then users _could_ pass in "-1" and get a random seed used and added to the metadata.
# Though, this should likely be discouraged for several reasons (thus, a lot of logging).
if seed in (-1, -2, -3):
log_node_warn(self.NAME,
f'Got "{seed}" as passed seed. ' +
'This shouldn\'t happen when queueing from the ComfyUI frontend.',
msg_color="YELLOW")
if seed in (-2, -3):
log_node_warn(self.NAME,
f'Cannot {"increment" if seed == -2 else "decrement"} seed from ' +
'server, but will generate a new random seed.',
msg_color="YELLOW")
original_seed = seed
seed = new_random_seed()
log_node_info(self.NAME, f'Server-generated random seed {seed} and saving to workflow.')
log_node_warn(
self.NAME,
'NOTE: Re-queues passing in "{seed}" and server-generated random seed won\'t be cached.',
msg_color="YELLOW")
if unique_id is None:
log_node_warn(
self.NAME, 'Cannot save server-generated seed to image metadata because ' +
'the node\'s id was not provided.')
else:
if extra_pnginfo is None:
log_node_warn(
self.NAME, 'Cannot save server-generated seed to image workflow ' +
'metadata because workflow was not provided.')
else:
workflow_node = next(
(x for x in extra_pnginfo['workflow']['nodes'] if x['id'] == int(unique_id)), None)
if workflow_node is None or 'widgets_values' not in workflow_node:
log_node_warn(
self.NAME, 'Cannot save server-generated seed to image workflow ' +
'metadata because node was not found in the provided workflow.')
else:
for index, widget_value in enumerate(workflow_node['widgets_values']):
if widget_value == original_seed:
workflow_node['widgets_values'][index] = seed
if prompt is None:
log_node_warn(
self.NAME, 'Cannot save server-generated seed to image API prompt ' +
'metadata because prompt was not provided.')
else:
prompt_node = prompt[str(unique_id)]
if prompt_node is None or 'inputs' not in prompt_node or 'seed' not in prompt_node[
'inputs']:
log_node_warn(
self.NAME, 'Cannot save server-generated seed to image workflow ' +
'metadata because node was not found in the provided workflow.')
else:
prompt_node['inputs']['seed'] = seed
return (seed,)
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