mirror of
https://github.com/invoke-ai/InvokeAI
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528 lines
19 KiB
Python
528 lines
19 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2022 Lincoln D. Stein (https://github.com/lstein)
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import os
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import re
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import sys
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import shlex
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import copy
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import warnings
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import time
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sys.path.append('.') # corrects a weird problem on Macs
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from ldm.dream.readline import get_completer
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from ldm.dream.args import Args, metadata_dumps, metadata_from_png, dream_cmd_from_png
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from ldm.dream.pngwriter import PngWriter
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from ldm.dream.image_util import make_grid
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from ldm.dream.log import write_log
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from omegaconf import OmegaConf
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from backend.invoke_ai_web_server import InvokeAIWebServer
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def main():
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"""Initialize command-line parsers and the diffusion model"""
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opt = Args()
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args = opt.parse_args()
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if not args:
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sys.exit(-1)
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if args.laion400m:
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print('--laion400m flag has been deprecated. Please use --model laion400m instead.')
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sys.exit(-1)
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if args.weights:
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print('--weights argument has been deprecated. Please edit ./configs/models.yaml, and select the weights using --model instead.')
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sys.exit(-1)
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print('* Initializing, be patient...\n')
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from ldm.generate import Generate
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# these two lines prevent a horrible warning message from appearing
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# when the frozen CLIP tokenizer is imported
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import transformers
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transformers.logging.set_verbosity_error()
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# Loading Face Restoration and ESRGAN Modules
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try:
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gfpgan, codeformer, esrgan = None, None, None
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if opt.restore or opt.esrgan:
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from ldm.dream.restoration import Restoration
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restoration = Restoration()
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if opt.restore:
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gfpgan, codeformer = restoration.load_face_restore_models(opt.gfpgan_dir, opt.gfpgan_model_path)
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else:
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print('>> Face restoration disabled')
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if opt.esrgan:
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esrgan = restoration.load_esrgan(opt.esrgan_bg_tile)
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else:
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print('>> Upscaling disabled')
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else:
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print('>> Face restoration and upscaling disabled')
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except (ModuleNotFoundError, ImportError):
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import traceback
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print(traceback.format_exc(), file=sys.stderr)
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print('>> You may need to install the ESRGAN and/or GFPGAN modules')
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# creating a simple text2image object with a handful of
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# defaults passed on the command line.
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# additional parameters will be added (or overriden) during
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# the user input loop
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try:
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gen = Generate(
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conf = opt.conf,
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model = opt.model,
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sampler_name = opt.sampler_name,
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embedding_path = opt.embedding_path,
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full_precision = opt.full_precision,
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precision = opt.precision,
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gfpgan=gfpgan,
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codeformer=codeformer,
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esrgan=esrgan
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)
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except (FileNotFoundError, IOError, KeyError) as e:
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print(f'{e}. Aborting.')
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sys.exit(-1)
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# make sure the output directory exists
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if not os.path.exists(opt.outdir):
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os.makedirs(opt.outdir)
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# load the infile as a list of lines
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infile = None
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if opt.infile:
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try:
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if os.path.isfile(opt.infile):
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infile = open(opt.infile, 'r', encoding='utf-8')
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elif opt.infile == '-': # stdin
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infile = sys.stdin
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else:
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raise FileNotFoundError(f'{opt.infile} not found.')
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except (FileNotFoundError, IOError) as e:
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print(f'{e}. Aborting.')
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sys.exit(-1)
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if opt.seamless:
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print(">> changed to seamless tiling mode")
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# preload the model
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gen.load_model()
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#set additional option
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gen.free_gpu_mem = opt.free_gpu_mem
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# web server loops forever
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if opt.web:
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invoke_ai_web_server_loop(gen, gfpgan, codeformer, esrgan)
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sys.exit(0)
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if not infile:
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print(
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"\n* Initialization done! Awaiting your command (-h for help, 'q' to quit)"
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)
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main_loop(gen, opt, infile)
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# TODO: main_loop() has gotten busy. Needs to be refactored.
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def main_loop(gen, opt, infile):
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"""prompt/read/execute loop"""
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done = False
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path_filter = re.compile(r'[<>:"/\\|?*]')
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last_results = list()
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model_config = OmegaConf.load(opt.conf)[opt.model]
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# The readline completer reads history from the .dream_history file located in the
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# output directory specified at the time of script launch. We do not currently support
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# changing the history file midstream when the output directory is changed.
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completer = get_completer(opt)
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output_cntr = completer.get_current_history_length()+1
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# os.pathconf is not available on Windows
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if hasattr(os, 'pathconf'):
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path_max = os.pathconf(opt.outdir, 'PC_PATH_MAX')
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name_max = os.pathconf(opt.outdir, 'PC_NAME_MAX')
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else:
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path_max = 260
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name_max = 255
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while not done:
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operation = 'generate' # default operation, alternative is 'postprocess'
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if completer:
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completer.set_default_dir(opt.outdir)
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try:
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command = get_next_command(infile)
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except EOFError:
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done = True
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continue
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# skip empty lines
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if not command.strip():
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continue
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if command.startswith(('#', '//')):
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continue
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if len(command.strip()) == 1 and command.startswith('q'):
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done = True
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break
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if command.startswith('!'):
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subcommand = command[1:]
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if subcommand.startswith('dream'): # in case a stored prompt still contains the !dream command
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command = command.replace('!dream ','',1)
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elif subcommand.startswith('fix'):
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command = command.replace('!fix ','',1)
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operation = 'postprocess'
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elif subcommand.startswith('fetch'):
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file_path = command.replace('!fetch ','',1)
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retrieve_dream_command(opt,file_path,completer)
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continue
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elif subcommand.startswith('history'):
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completer.show_history()
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continue
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elif re.match('^(\d+)',subcommand):
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command_no = re.match('^(\d+)',subcommand).groups()[0]
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command = completer.get_line(int(command_no))
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completer.set_line(command)
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continue
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else: # not a recognized subcommand, so give the --help text
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command = '-h'
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if opt.parse_cmd(command) is None:
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continue
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if opt.init_img:
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try:
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if not opt.prompt:
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oldargs = metadata_from_png(opt.init_img)
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opt.prompt = oldargs.prompt
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print(f'>> Retrieved old prompt "{opt.prompt}" from {opt.init_img}')
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except AttributeError:
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pass
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except KeyError:
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pass
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if len(opt.prompt) == 0:
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print('\nTry again with a prompt!')
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continue
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# width and height are set by model if not specified
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if not opt.width:
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opt.width = model_config.width
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if not opt.height:
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opt.height = model_config.height
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# retrieve previous value of init image if requested
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if opt.init_img is not None and re.match('^-\\d+$', opt.init_img):
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try:
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opt.init_img = last_results[int(opt.init_img)][0]
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print(f'>> Reusing previous image {opt.init_img}')
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except IndexError:
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print(
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f'>> No previous initial image at position {opt.init_img} found')
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opt.init_img = None
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continue
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# try to relativize pathnames
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for attr in ('init_img','init_mask','init_color','embedding_path'):
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if getattr(opt,attr) and not os.path.exists(getattr(opt,attr)):
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basename = getattr(opt,attr)
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path = os.path.join(opt.outdir,basename)
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setattr(opt,attr,path)
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# retrieve previous valueof seed if requested
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if opt.seed is not None and opt.seed < 0:
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try:
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opt.seed = last_results[opt.seed][1]
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print(f'>> Reusing previous seed {opt.seed}')
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except IndexError:
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print(f'>> No previous seed at position {opt.seed} found')
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opt.seed = None
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continue
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if opt.strength is None:
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opt.strength = 0.75 if opt.out_direction is None else 0.83
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if opt.with_variations is not None:
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opt.with_variations = split_variations(opt.with_variations)
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if opt.prompt_as_dir:
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# sanitize the prompt to a valid folder name
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subdir = path_filter.sub('_', opt.prompt)[:name_max].rstrip(' .')
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# truncate path to maximum allowed length
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# 39 is the length of '######.##########.##########-##.png', plus two separators and a NUL
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subdir = subdir[:(path_max - 39 - len(os.path.abspath(opt.outdir)))]
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current_outdir = os.path.join(opt.outdir, subdir)
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print('Writing files to directory: "' + current_outdir + '"')
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# make sure the output directory exists
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if not os.path.exists(current_outdir):
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os.makedirs(current_outdir)
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else:
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if not os.path.exists(opt.outdir):
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os.makedirs(opt.outdir)
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current_outdir = opt.outdir
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# Here is where the images are actually generated!
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last_results = []
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try:
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file_writer = PngWriter(current_outdir)
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results = [] # list of filename, prompt pairs
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grid_images = dict() # seed -> Image, only used if `opt.grid`
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prior_variations = opt.with_variations or []
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prefix = file_writer.unique_prefix()
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def image_writer(image, seed, upscaled=False, first_seed=None, use_prefix=None):
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# note the seed is the seed of the current image
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# the first_seed is the original seed that noise is added to
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# when the -v switch is used to generate variations
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nonlocal prior_variations
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nonlocal prefix
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if use_prefix is not None:
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prefix = use_prefix
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path = None
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if opt.grid:
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grid_images[seed] = image
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else:
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postprocessed = upscaled if upscaled else operation=='postprocess'
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filename, formatted_dream_prompt = prepare_image_metadata(
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opt,
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prefix,
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seed,
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operation,
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prior_variations,
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postprocessed,
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first_seed
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)
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path = file_writer.save_image_and_prompt_to_png(
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image = image,
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dream_prompt = formatted_dream_prompt,
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metadata = metadata_dumps(
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opt,
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seeds = [seed],
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model_hash = gen.model_hash,
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),
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name = filename,
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)
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if (not upscaled) or opt.save_original:
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# only append to results if we didn't overwrite an earlier output
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results.append([path, formatted_dream_prompt])
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# so that the seed autocompletes (on linux|mac when -S or --seed specified
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if completer:
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completer.add_seed(seed)
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completer.add_seed(first_seed)
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last_results.append([path, seed])
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if operation == 'generate':
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catch_ctrl_c = infile is None # if running interactively, we catch keyboard interrupts
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opt.last_operation='generate'
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gen.prompt2image(
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image_callback=image_writer,
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catch_interrupts=catch_ctrl_c,
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**vars(opt)
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)
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elif operation == 'postprocess':
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print(f'>> fixing {opt.prompt}')
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opt.last_operation = do_postprocess(gen,opt,image_writer)
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if opt.grid and len(grid_images) > 0:
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grid_img = make_grid(list(grid_images.values()))
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grid_seeds = list(grid_images.keys())
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first_seed = last_results[0][1]
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filename = f'{prefix}.{first_seed}.png'
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formatted_dream_prompt = opt.dream_prompt_str(seed=first_seed,grid=True,iterations=len(grid_images))
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formatted_dream_prompt += f' # {grid_seeds}'
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metadata = metadata_dumps(
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opt,
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seeds = grid_seeds,
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model_hash = gen.model_hash
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)
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path = file_writer.save_image_and_prompt_to_png(
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image = grid_img,
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dream_prompt = formatted_dream_prompt,
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metadata = metadata,
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name = filename
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)
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results = [[path, formatted_dream_prompt]]
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except AssertionError as e:
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print(e)
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continue
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except OSError as e:
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print(e)
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continue
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print('Outputs:')
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log_path = os.path.join(current_outdir, 'dream_log')
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output_cntr = write_log(results, log_path ,('txt', 'md'), output_cntr)
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print()
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if operation == 'postprocess':
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completer.add_history(f'!fix {command}')
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else:
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completer.add_history(command)
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print('goodbye!')
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def do_postprocess (gen, opt, callback):
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file_path = opt.prompt # treat the prompt as the file pathname
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if os.path.dirname(file_path) == '': #basename given
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file_path = os.path.join(opt.outdir,file_path)
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if not os.path.exists(file_path):
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print(f'* file {file_path} does not exist')
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return
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tool=None
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if opt.gfpgan_strength > 0:
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tool = opt.facetool
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elif opt.embiggen:
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tool = 'embiggen'
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elif opt.upscale:
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tool = 'upscale'
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elif opt.out_direction:
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tool = 'outpaint'
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opt.save_original = True # do not overwrite old image!
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opt.last_operation = f'postprocess:{tool}'
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gen.apply_postprocessor(
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image_path = file_path,
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tool = tool,
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gfpgan_strength = opt.gfpgan_strength,
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codeformer_fidelity = opt.codeformer_fidelity,
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save_original = opt.save_original,
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upscale = opt.upscale,
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out_direction = opt.out_direction,
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callback = callback,
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opt = opt,
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)
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return opt.last_operation
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def prepare_image_metadata(
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opt,
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prefix,
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seed,
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operation='generate',
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prior_variations=[],
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postprocessed=False,
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first_seed=None
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):
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if postprocessed and opt.save_original:
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filename = choose_postprocess_name(opt,prefix,seed)
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else:
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filename = f'{prefix}.{seed}.png'
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if opt.variation_amount > 0:
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first_seed = first_seed or seed
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this_variation = [[seed, opt.variation_amount]]
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opt.with_variations = prior_variations + this_variation
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formatted_dream_prompt = opt.dream_prompt_str(seed=first_seed)
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elif len(prior_variations) > 0:
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formatted_dream_prompt = opt.dream_prompt_str(seed=first_seed)
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elif operation == 'postprocess':
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formatted_dream_prompt = '!fix '+opt.dream_prompt_str(seed=seed)
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else:
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formatted_dream_prompt = opt.dream_prompt_str(seed=seed)
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return filename,formatted_dream_prompt
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def choose_postprocess_name(opt,prefix,seed) -> str:
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match = re.search('postprocess:(\w+)',opt.last_operation)
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if match:
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modifier = match.group(1) # will look like "gfpgan", "upscale", "outpaint" or "embiggen"
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else:
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modifier = 'postprocessed'
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counter = 0
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filename = None
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available = False
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while not available:
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if counter == 0:
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filename = f'{prefix}.{seed}.{modifier}.png'
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else:
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filename = f'{prefix}.{seed}.{modifier}-{counter:02d}.png'
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available = not os.path.exists(os.path.join(opt.outdir,filename))
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counter += 1
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return filename
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def get_next_command(infile=None) -> str: # command string
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if infile is None:
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command = input('dream> ')
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else:
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command = infile.readline()
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if not command:
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raise EOFError
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else:
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command = command.strip()
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if len(command)>0:
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print(f'#{command}')
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return command
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def invoke_ai_web_server_loop(gen, gfpgan, codeformer, esrgan):
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print('\n* --web was specified, starting web server...')
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# Change working directory to the stable-diffusion directory
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os.chdir(
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os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
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)
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invoke_ai_web_server = InvokeAIWebServer(generate=gen, gfpgan=gfpgan, codeformer=codeformer, esrgan=esrgan)
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try:
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invoke_ai_web_server.run()
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except KeyboardInterrupt:
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pass
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def split_variations(variations_string) -> list:
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# shotgun parsing, woo
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parts = []
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broken = False # python doesn't have labeled loops...
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for part in variations_string.split(','):
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seed_and_weight = part.split(':')
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if len(seed_and_weight) != 2:
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print(f'** Could not parse with_variation part "{part}"')
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broken = True
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break
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try:
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seed = int(seed_and_weight[0])
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weight = float(seed_and_weight[1])
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except ValueError:
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print(f'** Could not parse with_variation part "{part}"')
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broken = True
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break
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parts.append([seed, weight])
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if broken:
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return None
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elif len(parts) == 0:
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return None
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else:
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return parts
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def retrieve_dream_command(opt,file_path,completer):
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'''
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Given a full or partial path to a previously-generated image file,
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will retrieve and format the dream command used to generate the image,
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and pop it into the readline buffer (linux, Mac), or print out a comment
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for cut-and-paste (windows)
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'''
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dir,basename = os.path.split(file_path)
|
|
if len(dir) == 0:
|
|
path = os.path.join(opt.outdir,basename)
|
|
else:
|
|
path = file_path
|
|
try:
|
|
cmd = dream_cmd_from_png(path)
|
|
except FileNotFoundError:
|
|
print(f'** {path}: file not found')
|
|
return
|
|
completer.set_line(cmd)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|