openvinotoolkit/stable-diffusion-webui
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stable-diffusion-webui/modules/scripts.py
AUTOMATIC1111 353c876172 fix API always using -1 as seed
2023-08-14 10:43:18 +03:00

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import os
import re
import sys
import inspect
from collections import namedtuple
from dataclasses import dataclass
import gradio as gr
from modules import shared, paths, script_callbacks, extensions, script_loading, scripts_postprocessing, errors, timer
AlwaysVisible = object()
class PostprocessImageArgs:
def __init__(self, image):
self.image = image
class PostprocessBatchListArgs:
def __init__(self, images):
self.images = images
@dataclass
class OnComponent:
component: gr.blocks.Block
class Script:
name = None
"""script's internal name derived from title"""
section = None
"""name of UI section that the script's controls will be placed into"""
filename = None
args_from = None
args_to = None
alwayson = False
is_txt2img = False
is_img2img = False
tabname = None
group = None
"""A gr.Group component that has all script's UI inside it."""
create_group = True
"""If False, for alwayson scripts, a group component will not be created."""
infotext_fields = None
"""if set in ui(), this is a list of pairs of gradio component + text; the text will be used when
parsing infotext to set the value for the component; see ui.py's txt2img_paste_fields for an example
"""
paste_field_names = None
"""if set in ui(), this is a list of names of infotext fields; the fields will be sent through the
various "Send to <X>" buttons when clicked
"""
api_info = None
"""Generated value of type modules.api.models.ScriptInfo with information about the script for API"""
on_before_component_elem_id = None
"""list of callbacks to be called before a component with an elem_id is created"""
on_after_component_elem_id = None
"""list of callbacks to be called after a component with an elem_id is created"""
setup_for_ui_only = False
"""If true, the script setup will only be run in Gradio UI, not in API"""
def title(self):
"""this function should return the title of the script. This is what will be displayed in the dropdown menu."""
raise NotImplementedError()
def ui(self, is_img2img):
"""this function should create gradio UI elements. See https://gradio.app/docs/#components
The return value should be an array of all components that are used in processing.
Values of those returned components will be passed to run() and process() functions.
"""
pass
def show(self, is_img2img):
"""
is_img2img is True if this function is called for the img2img interface, and Fasle otherwise
This function should return:
- False if the script should not be shown in UI at all
- True if the script should be shown in UI if it's selected in the scripts dropdown
- script.AlwaysVisible if the script should be shown in UI at all times
"""
return True
def run(self, p, *args):
"""
This function is called if the script has been selected in the script dropdown.
It must do all processing and return the Processed object with results, same as
one returned by processing.process_images.
Usually the processing is done by calling the processing.process_images function.
args contains all values returned by components from ui()
"""
pass
def setup(self, p, *args):
"""For AlwaysVisible scripts, this function is called when the processing object is set up, before any processing starts.
args contains all values returned by components from ui().
"""
pass
def before_process(self, p, *args):
"""
This function is called very early during processing begins for AlwaysVisible scripts.
You can modify the processing object (p) here, inject hooks, etc.
args contains all values returned by components from ui()
"""
pass
def process(self, p, *args):
"""
This function is called before processing begins for AlwaysVisible scripts.
You can modify the processing object (p) here, inject hooks, etc.
args contains all values returned by components from ui()
"""
pass
def before_process_batch(self, p, *args, **kwargs):
"""
Called before extra networks are parsed from the prompt, so you can add
new extra network keywords to the prompt with this callback.
**kwargs will have those items:
- batch_number - index of current batch, from 0 to number of batches-1
- prompts - list of prompts for current batch; you can change contents of this list but changing the number of entries will likely break things
- seeds - list of seeds for current batch
- subseeds - list of subseeds for current batch
"""
pass
def after_extra_networks_activate(self, p, *args, **kwargs):
"""
Called after extra networks activation, before conds calculation
allow modification of the network after extra networks activation been applied
won't be call if p.disable_extra_networks
**kwargs will have those items:
- batch_number - index of current batch, from 0 to number of batches-1
- prompts - list of prompts for current batch; you can change contents of this list but changing the number of entries will likely break things
- seeds - list of seeds for current batch
- subseeds - list of subseeds for current batch
- extra_network_data - list of ExtraNetworkParams for current stage
"""
pass
def process_batch(self, p, *args, **kwargs):
"""
Same as process(), but called for every batch.
**kwargs will have those items:
- batch_number - index of current batch, from 0 to number of batches-1
- prompts - list of prompts for current batch; you can change contents of this list but changing the number of entries will likely break things
- seeds - list of seeds for current batch
- subseeds - list of subseeds for current batch
"""
pass
def postprocess_batch(self, p, *args, **kwargs):
"""
Same as process_batch(), but called for every batch after it has been generated.
**kwargs will have same items as process_batch, and also:
- batch_number - index of current batch, from 0 to number of batches-1
- images - torch tensor with all generated images, with values ranging from 0 to 1;
"""
pass
def postprocess_batch_list(self, p, pp: PostprocessBatchListArgs, *args, **kwargs):
"""
Same as postprocess_batch(), but receives batch images as a list of 3D tensors instead of a 4D tensor.
This is useful when you want to update the entire batch instead of individual images.
You can modify the postprocessing object (pp) to update the images in the batch, remove images, add images, etc.
If the number of images is different from the batch size when returning,
then the script has the responsibility to also update the following attributes in the processing object (p):
- p.prompts
- p.negative_prompts
- p.seeds
- p.subseeds
**kwargs will have same items as process_batch, and also:
- batch_number - index of current batch, from 0 to number of batches-1
"""
pass
def postprocess_image(self, p, pp: PostprocessImageArgs, *args):
"""
Called for every image after it has been generated.
"""
pass
def postprocess(self, p, processed, *args):
"""
This function is called after processing ends for AlwaysVisible scripts.
args contains all values returned by components from ui()
"""
pass
def before_component(self, component, **kwargs):
"""
Called before a component is created.
Use elem_id/label fields of kwargs to figure out which component it is.
This can be useful to inject your own components somewhere in the middle of vanilla UI.
You can return created components in the ui() function to add them to the list of arguments for your processing functions
"""
pass
def after_component(self, component, **kwargs):
"""
Called after a component is created. Same as above.
"""
pass
def on_before_component(self, callback, *, elem_id):
"""
Calls callback before a component is created. The callback function is called with a single argument of type OnComponent.
May be called in show() or ui() - but it may be too late in latter as some components may already be created.
This function is an alternative to before_component in that it also cllows to run before a component is created, but
it doesn't require to be called for every created component - just for the one you need.
"""
if self.on_before_component_elem_id is None:
self.on_before_component_elem_id = []
self.on_before_component_elem_id.append((elem_id, callback))
def on_after_component(self, callback, *, elem_id):
"""
Calls callback after a component is created. The callback function is called with a single argument of type OnComponent.
"""
if self.on_after_component_elem_id is None:
self.on_after_component_elem_id = []
self.on_after_component_elem_id.append((elem_id, callback))
def describe(self):
"""unused"""
return ""
def elem_id(self, item_id):
"""helper function to generate id for a HTML element, constructs final id out of script name, tab and user-supplied item_id"""
need_tabname = self.show(True) == self.show(False)
tabkind = 'img2img' if self.is_img2img else 'txt2txt'
tabname = f"{tabkind}_" if need_tabname else ""
title = re.sub(r'[^a-z_0-9]', '', re.sub(r'\s', '_', self.title().lower()))
return f'script_{tabname}{title}_{item_id}'
def before_hr(self, p, *args):
"""
This function is called before hires fix start.
"""
pass
class ScriptBuiltinUI(Script):
setup_for_ui_only = True
def elem_id(self, item_id):
"""helper function to generate id for a HTML element, constructs final id out of tab and user-supplied item_id"""
need_tabname = self.show(True) == self.show(False)
tabname = ('img2img' if self.is_img2img else 'txt2txt') + "_" if need_tabname else ""
return f'{tabname}{item_id}'
current_basedir = paths.script_path
def basedir():
"""returns the base directory for the current script. For scripts in the main scripts directory,
this is the main directory (where webui.py resides), and for scripts in extensions directory
(ie extensions/aesthetic/script/aesthetic.py), this is extension's directory (extensions/aesthetic)
"""
return current_basedir
ScriptFile = namedtuple("ScriptFile", ["basedir", "filename", "path"])
scripts_data = []
postprocessing_scripts_data = []
ScriptClassData = namedtuple("ScriptClassData", ["script_class", "path", "basedir", "module"])
def list_scripts(scriptdirname, extension, *, include_extensions=True):
scripts_list = []
basedir = os.path.join(paths.script_path, scriptdirname)
if os.path.exists(basedir):
for filename in sorted(os.listdir(basedir)):
scripts_list.append(ScriptFile(paths.script_path, filename, os.path.join(basedir, filename)))
if include_extensions:
for ext in extensions.active():
scripts_list += ext.list_files(scriptdirname, extension)
scripts_list = [x for x in scripts_list if os.path.splitext(x.path)[1].lower() == extension and os.path.isfile(x.path)]
return scripts_list
def list_files_with_name(filename):
res = []
dirs = [paths.script_path] + [ext.path for ext in extensions.active()]
for dirpath in dirs:
if not os.path.isdir(dirpath):
continue
path = os.path.join(dirpath, filename)
if os.path.isfile(path):
res.append(path)
return res
def load_scripts():
global current_basedir
scripts_data.clear()
postprocessing_scripts_data.clear()
script_callbacks.clear_callbacks()
scripts_list = list_scripts("scripts", ".py") + list_scripts("modules/processing_scripts", ".py", include_extensions=False)
syspath = sys.path
def register_scripts_from_module(module):
for script_class in module.__dict__.values():
if not inspect.isclass(script_class):
continue
if issubclass(script_class, Script):
scripts_data.append(ScriptClassData(script_class, scriptfile.path, scriptfile.basedir, module))
elif issubclass(script_class, scripts_postprocessing.ScriptPostprocessing):
postprocessing_scripts_data.append(ScriptClassData(script_class, scriptfile.path, scriptfile.basedir, module))
def orderby(basedir):
# 1st webui, 2nd extensions-builtin, 3rd extensions
priority = {os.path.join(paths.script_path, "extensions-builtin"):1, paths.script_path:0}
for key in priority:
if basedir.startswith(key):
return priority[key]
return 9999
for scriptfile in sorted(scripts_list, key=lambda x: [orderby(x.basedir), x]):
try:
if scriptfile.basedir != paths.script_path:
sys.path = [scriptfile.basedir] + sys.path
current_basedir = scriptfile.basedir
script_module = script_loading.load_module(scriptfile.path)
register_scripts_from_module(script_module)
except Exception:
errors.report(f"Error loading script: {scriptfile.filename}", exc_info=True)
finally:
sys.path = syspath
current_basedir = paths.script_path
timer.startup_timer.record(scriptfile.filename)
global scripts_txt2img, scripts_img2img, scripts_postproc
scripts_txt2img = ScriptRunner()
scripts_img2img = ScriptRunner()
scripts_postproc = scripts_postprocessing.ScriptPostprocessingRunner()
def wrap_call(func, filename, funcname, *args, default=None, **kwargs):
try:
return func(*args, **kwargs)
except Exception:
errors.report(f"Error calling: {filename}/{funcname}", exc_info=True)
return default
class ScriptRunner:
def __init__(self):
self.scripts = []
self.selectable_scripts = []
self.alwayson_scripts = []
self.titles = []
self.title_map = {}
self.infotext_fields = []
self.paste_field_names = []
self.inputs = [None]
self.on_before_component_elem_id = {}
"""dict of callbacks to be called before an element is created; key=elem_id, value=list of callbacks"""
self.on_after_component_elem_id = {}
"""dict of callbacks to be called after an element is created; key=elem_id, value=list of callbacks"""
def initialize_scripts(self, is_img2img):
from modules import scripts_auto_postprocessing
self.scripts.clear()
self.alwayson_scripts.clear()
self.selectable_scripts.clear()
auto_processing_scripts = scripts_auto_postprocessing.create_auto_preprocessing_script_data()
for script_data in auto_processing_scripts + scripts_data:
script = script_data.script_class()
script.filename = script_data.path
script.is_txt2img = not is_img2img
script.is_img2img = is_img2img
script.tabname = "img2img" if is_img2img else "txt2img"
visibility = script.show(script.is_img2img)
if visibility == AlwaysVisible:
self.scripts.append(script)
self.alwayson_scripts.append(script)
script.alwayson = True
elif visibility:
self.scripts.append(script)
self.selectable_scripts.append(script)
self.apply_on_before_component_callbacks()
def apply_on_before_component_callbacks(self):
for script in self.scripts:
on_before = script.on_before_component_elem_id or []
on_after = script.on_after_component_elem_id or []
for elem_id, callback in on_before:
if elem_id not in self.on_before_component_elem_id:
self.on_before_component_elem_id[elem_id] = []
self.on_before_component_elem_id[elem_id].append((callback, script))
for elem_id, callback in on_after:
if elem_id not in self.on_after_component_elem_id:
self.on_after_component_elem_id[elem_id] = []
self.on_after_component_elem_id[elem_id].append((callback, script))
on_before.clear()
on_after.clear()
def create_script_ui(self, script):
import modules.api.models as api_models
script.args_from = len(self.inputs)
script.args_to = len(self.inputs)
controls = wrap_call(script.ui, script.filename, "ui", script.is_img2img)
if controls is None:
return
script.name = wrap_call(script.title, script.filename, "title", default=script.filename).lower()
api_args = []
for control in controls:
control.custom_script_source = os.path.basename(script.filename)
arg_info = api_models.ScriptArg(label=control.label or "")
for field in ("value", "minimum", "maximum", "step", "choices"):
v = getattr(control, field, None)
if v is not None:
setattr(arg_info, field, v)
api_args.append(arg_info)
script.api_info = api_models.ScriptInfo(
name=script.name,
is_img2img=script.is_img2img,
is_alwayson=script.alwayson,
args=api_args,
)
if script.infotext_fields is not None:
self.infotext_fields += script.infotext_fields
if script.paste_field_names is not None:
self.paste_field_names += script.paste_field_names
self.inputs += controls
script.args_to = len(self.inputs)
def setup_ui_for_section(self, section, scriptlist=None):
if scriptlist is None:
scriptlist = self.alwayson_scripts
for script in scriptlist:
if script.alwayson and script.section != section:
continue
if script.create_group:
with gr.Group(visible=script.alwayson) as group:
self.create_script_ui(script)
script.group = group
else:
self.create_script_ui(script)
def prepare_ui(self):
self.inputs = [None]
def setup_ui(self):
all_titles = [wrap_call(script.title, script.filename, "title") or script.filename for script in self.scripts]
self.title_map = {title.lower(): script for title, script in zip(all_titles, self.scripts)}
self.titles = [wrap_call(script.title, script.filename, "title") or f"{script.filename} [error]" for script in self.selectable_scripts]
self.setup_ui_for_section(None)
dropdown = gr.Dropdown(label="Script", elem_id="script_list", choices=["None"] + self.titles, value="None", type="index")
self.inputs[0] = dropdown
self.setup_ui_for_section(None, self.selectable_scripts)
def select_script(script_index):
selected_script = self.selectable_scripts[script_index - 1] if script_index>0 else None
return [gr.update(visible=selected_script == s) for s in self.selectable_scripts]
def init_field(title):
"""called when an initial value is set from ui-config.json to show script's UI components"""
if title == 'None':
return
script_index = self.titles.index(title)
self.selectable_scripts[script_index].group.visible = True
dropdown.init_field = init_field
dropdown.change(
fn=select_script,
inputs=[dropdown],
outputs=[script.group for script in self.selectable_scripts]
)
self.script_load_ctr = 0
def onload_script_visibility(params):
title = params.get('Script', None)
if title:
title_index = self.titles.index(title)
visibility = title_index == self.script_load_ctr
self.script_load_ctr = (self.script_load_ctr + 1) % len(self.titles)
return gr.update(visible=visibility)
else:
return gr.update(visible=False)
self.infotext_fields.append((dropdown, lambda x: gr.update(value=x.get('Script', 'None'))))
self.infotext_fields.extend([(script.group, onload_script_visibility) for script in self.selectable_scripts])
self.apply_on_before_component_callbacks()
return self.inputs
def run(self, p, *args):
script_index = args[0]
if script_index == 0:
return None
script = self.selectable_scripts[script_index-1]
if script is None:
return None
script_args = args[script.args_from:script.args_to]
processed = script.run(p, *script_args)
shared.total_tqdm.clear()
return processed
def before_process(self, p):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.before_process(p, *script_args)
except Exception:
errors.report(f"Error running before_process: {script.filename}", exc_info=True)
def process(self, p):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.process(p, *script_args)
except Exception:
errors.report(f"Error running process: {script.filename}", exc_info=True)
def before_process_batch(self, p, **kwargs):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.before_process_batch(p, *script_args, **kwargs)
except Exception:
errors.report(f"Error running before_process_batch: {script.filename}", exc_info=True)
def after_extra_networks_activate(self, p, **kwargs):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.after_extra_networks_activate(p, *script_args, **kwargs)
except Exception:
errors.report(f"Error running after_extra_networks_activate: {script.filename}", exc_info=True)
def process_batch(self, p, **kwargs):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.process_batch(p, *script_args, **kwargs)
except Exception:
errors.report(f"Error running process_batch: {script.filename}", exc_info=True)
def postprocess(self, p, processed):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.postprocess(p, processed, *script_args)
except Exception:
errors.report(f"Error running postprocess: {script.filename}", exc_info=True)
def postprocess_batch(self, p, images, **kwargs):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.postprocess_batch(p, *script_args, images=images, **kwargs)
except Exception:
errors.report(f"Error running postprocess_batch: {script.filename}", exc_info=True)
def postprocess_batch_list(self, p, pp: PostprocessBatchListArgs, **kwargs):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.postprocess_batch_list(p, pp, *script_args, **kwargs)
except Exception:
errors.report(f"Error running postprocess_batch_list: {script.filename}", exc_info=True)
def postprocess_image(self, p, pp: PostprocessImageArgs):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.postprocess_image(p, pp, *script_args)
except Exception:
errors.report(f"Error running postprocess_image: {script.filename}", exc_info=True)
def before_component(self, component, **kwargs):
for callback, script in self.on_before_component_elem_id.get(kwargs.get("elem_id"), []):
try:
callback(OnComponent(component=component))
except Exception:
errors.report(f"Error running on_before_component: {script.filename}", exc_info=True)
for script in self.scripts:
try:
script.before_component(component, **kwargs)
except Exception:
errors.report(f"Error running before_component: {script.filename}", exc_info=True)
def after_component(self, component, **kwargs):
for callback, script in self.on_after_component_elem_id.get(component.elem_id, []):
try:
callback(OnComponent(component=component))
except Exception:
errors.report(f"Error running on_after_component: {script.filename}", exc_info=True)
for script in self.scripts:
try:
script.after_component(component, **kwargs)
except Exception:
errors.report(f"Error running after_component: {script.filename}", exc_info=True)
def script(self, title):
return self.title_map.get(title.lower())
def reload_sources(self, cache):
for si, script in list(enumerate(self.scripts)):
args_from = script.args_from
args_to = script.args_to
filename = script.filename
module = cache.get(filename, None)
if module is None:
module = script_loading.load_module(script.filename)
cache[filename] = module
for script_class in module.__dict__.values():
if type(script_class) == type and issubclass(script_class, Script):
self.scripts[si] = script_class()
self.scripts[si].filename = filename
self.scripts[si].args_from = args_from
self.scripts[si].args_to = args_to
def before_hr(self, p):
for script in self.alwayson_scripts:
try:
script_args = p.script_args[script.args_from:script.args_to]
script.before_hr(p, *script_args)
except Exception:
errors.report(f"Error running before_hr: {script.filename}", exc_info=True)
def setup_scrips(self, p, *, is_ui=True):
for script in self.alwayson_scripts:
if not is_ui and script.setup_for_ui_only:
continue
try:
script_args = p.script_args[script.args_from:script.args_to]
script.setup(p, *script_args)
except Exception:
errors.report(f"Error running setup: {script.filename}", exc_info=True)
scripts_txt2img: ScriptRunner = None
scripts_img2img: ScriptRunner = None
scripts_postproc: scripts_postprocessing.ScriptPostprocessingRunner = None
scripts_current: ScriptRunner = None
def reload_script_body_only():
cache = {}
scripts_txt2img.reload_sources(cache)
scripts_img2img.reload_sources(cache)
reload_scripts = load_scripts # compatibility alias
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