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import yaml
import random
def load_pid_config():
project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
pid_path = os.path.join(project_root, 'yaml', 'pid.yaml')
with open(pid_path, 'r', encoding='utf-8') as f:
return yaml.safe_load(f) or {}
def load_model_config():
project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
model_list_path = os.path.join(project_root, 'yaml', 'model_list.yaml')
with open(model_list_path, 'r', encoding='utf-8') as f:
return yaml.safe_load(f) or {}
def inject(assembler, chain_definition, chain_items):
if not chain_items:
return
pid_config = {}
try:
pid_config = load_pid_config() or {}
except Exception as e:
print(f"Error loading PiD config: {e}")
pid_items = pid_config.get("PiD", [])
architectures_settings = {}
default_settings = {"unet_name": "pid_flux1_1024_to_4096_4step_mxfp8.safetensors", "latent_format": "flux"}
for item in pid_items:
unet_name = item.get("filepath")
latent_format = item.get("latent_format")
archs = item.get("architectures", [])
for arch in archs:
architectures_settings[arch] = {
"unet_name": unet_name,
"latent_format": latent_format
}
if arch == "flux1":
default_settings = {
"unet_name": unet_name,
"latent_format": latent_format
}
ksampler_name = chain_definition.get('ksampler_node', 'ksampler')
if ksampler_name not in assembler.node_map:
print(f"Warning: [PiD Injector] KSampler node '{ksampler_name}' not found. Skipping.")
return
original_ksampler_id = assembler.node_map[ksampler_name]
original_vae_loader_id = assembler.node_map.get('vae_loader')
original_vae_decode_id = assembler.node_map.get('vae_decode')
original_pos_prompt_id = assembler.node_map.get('pos_prompt')
original_neg_prompt_id = assembler.node_map.get('neg_prompt')
if not original_vae_loader_id:
for node_id, node_data in assembler.workflow.items():
if node_data.get('class_type') == 'VAELoader':
original_vae_loader_id = node_id
break
if not original_vae_decode_id:
for node_id, node_data in assembler.workflow.items():
if node_data.get('class_type') == 'VAEDecode':
original_vae_decode_id = node_id
break
if not original_pos_prompt_id or not original_neg_prompt_id:
for node_id, node_data in assembler.workflow.items():
if node_data.get('class_type') == 'CLIPTextEncode':
title = node_data.get('_meta', {}).get('title', '')
if 'Positive' in title:
if not original_pos_prompt_id:
original_pos_prompt_id = node_id
elif 'Negative' in title:
if not original_neg_prompt_id:
original_neg_prompt_id = node_id
pos_text = ""
if original_pos_prompt_id and original_pos_prompt_id in assembler.workflow:
pos_text = assembler.workflow[original_pos_prompt_id]['inputs'].get('text', '')
neg_text = ""
if original_neg_prompt_id and original_neg_prompt_id in assembler.workflow:
neg_text = assembler.workflow[original_neg_prompt_id]['inputs'].get('text', '')
clip_loader_id = assembler._get_unique_id()
clip_loader_node = assembler._get_node_template("CLIPLoader")
clip_loader_node['inputs']['clip_name'] = "gemma_2_2b_it_elm_fp8_scaled.safetensors"
clip_loader_node['inputs']['type'] = "pixeldit"
clip_loader_node['inputs']['device'] = "default"
assembler.workflow[clip_loader_id] = clip_loader_node
pos_text_encode_id = assembler._get_unique_id()
pos_text_encode_node = assembler._get_node_template("CLIPTextEncode")
pos_text_encode_node['inputs']['text'] = pos_text
pos_text_encode_node['inputs']['clip'] = [clip_loader_id, 0]
assembler.workflow[pos_text_encode_id] = pos_text_encode_node
neg_text_encode_id = assembler._get_unique_id()
neg_text_encode_node = assembler._get_node_template("CLIPTextEncode")
neg_text_encode_node['inputs']['text'] = neg_text
neg_text_encode_node['inputs']['clip'] = [clip_loader_id, 0]
assembler.workflow[neg_text_encode_id] = neg_text_encode_node
active_model_file = None
for node_id, node_data in assembler.workflow.items():
class_type = node_data.get('class_type')
if class_type == 'UNETLoader':
active_model_file = node_data.get('inputs', {}).get('unet_name')
if active_model_file:
break
elif class_type == 'CheckpointLoaderSimple':
active_model_file = node_data.get('inputs', {}).get('ckpt_name')
if active_model_file:
break
architecture = None
if active_model_file:
try:
model_config = load_model_config()
checkpoints = model_config.get("Checkpoints", {})
for arch_name, arch_data in checkpoints.items():
models_list = arch_data.get("models", [])
for model_entry in models_list:
if model_entry.get('path') == active_model_file:
architecture = arch_name
break
components_dict = model_entry.get('components', {})
if active_model_file in components_dict.values():
architecture = arch_name
break
if architecture:
break
except Exception as e:
print(f"Error looking up model architecture in PiD injector: {e}")
if architecture:
architecture = architecture.lower().replace(" ", "-").replace(".", "")
else:
file_lower = active_model_file.lower().replace("-", "").replace("_", "").replace(".", "")
for arch in sorted(architectures_settings.keys(), key=len, reverse=True):
candidates = [arch]
if "-image" in arch:
candidates.append(arch.replace("-image", ""))
if "-i1" in arch:
candidates.append(arch.replace("-i1", ""))
if "-kv" in arch:
candidates.append(arch.replace("-kv", ""))
matched = False
for cand in candidates:
if cand.replace("-", "").replace(".", "") in file_lower:
architecture = arch
matched = True
break
if matched:
break
unet_name = default_settings.get("unet_name")
latent_format = default_settings.get("latent_format")
if architecture in architectures_settings:
arch_config = architectures_settings[architecture]
unet_name = arch_config.get("unet_name", unet_name)
latent_format = arch_config.get("latent_format", latent_format)
else:
print(f"[PiD Injector] Warning: Model architecture '{architecture}' (file: '{active_model_file}') not explicitly mapped. Using default settings.")
pid_pos_id = assembler._get_unique_id()
pid_pos_node = assembler._get_node_template("PiDConditioning")
pid_pos_node['inputs']['latent_format'] = latent_format
pid_pos_node['inputs']['degrade_sigma'] = 0
pid_pos_node['inputs']['positive'] = [pos_text_encode_id, 0]
pid_pos_node['inputs']['latent'] = [original_ksampler_id, 0]
assembler.workflow[pid_pos_id] = pid_pos_node
pid_neg_id = assembler._get_unique_id()
pid_neg_node = assembler._get_node_template("PiDConditioning")
pid_neg_node['inputs']['latent_format'] = latent_format
pid_neg_node['inputs']['degrade_sigma'] = 0
pid_neg_node['inputs']['positive'] = [neg_text_encode_id, 0]
pid_neg_node['inputs']['latent'] = [original_ksampler_id, 0]
assembler.workflow[pid_neg_id] = pid_neg_node
pid_unet_loader_id = assembler._get_unique_id()
pid_unet_loader_node = assembler._get_node_template("UNETLoader")
pid_unet_loader_node['inputs']['unet_name'] = unet_name
pid_unet_loader_node['inputs']['weight_dtype'] = "default"
assembler.workflow[pid_unet_loader_id] = pid_unet_loader_node
orig_width = 1024
orig_height = 1024
original_latent_source_id = assembler.node_map.get('latent_source')
if original_latent_source_id in assembler.workflow:
node_inputs = assembler.workflow[original_latent_source_id].get('inputs', {})
if 'width' in node_inputs and 'height' in node_inputs:
orig_width = node_inputs['width']
orig_height = node_inputs['height']
else:
for node_data in assembler.workflow.values():
inputs = node_data.get('inputs', {})
if 'width' in inputs and 'height' in inputs and isinstance(inputs['width'], (int, float)) and isinstance(inputs['height'], (int, float)):
if 256 <= inputs['width'] <= 4096 and 256 <= inputs['height'] <= 4096:
orig_width = inputs['width']
orig_height = inputs['height']
break
else:
for node_data in assembler.workflow.values():
inputs = node_data.get('inputs', {})
if 'width' in inputs and 'height' in inputs and isinstance(inputs['width'], (int, float)) and isinstance(inputs['height'], (int, float)):
if 256 <= inputs['width'] <= 4096 and 256 <= inputs['height'] <= 4096:
orig_width = inputs['width']
orig_height = inputs['height']
break
empty_latent_id = assembler._get_unique_id()
empty_latent_node = assembler._get_node_template("EmptyChromaRadianceLatentImage")
empty_latent_node['inputs']['width'] = int(orig_width) * 4
empty_latent_node['inputs']['height'] = int(orig_height) * 4
empty_latent_node['inputs']['batch_size'] = 1
if original_latent_source_id in assembler.workflow:
orig_batch_size = assembler.workflow[original_latent_source_id]['inputs'].get('batch_size') or assembler.workflow[original_latent_source_id]['inputs'].get('amount')
if orig_batch_size:
empty_latent_node['inputs']['batch_size'] = orig_batch_size
assembler.workflow[empty_latent_id] = empty_latent_node
orig_seed = 0
if original_ksampler_id in assembler.workflow:
orig_seed = assembler.workflow[original_ksampler_id]['inputs'].get('seed', 0)
if orig_seed == -1:
orig_seed = random.randint(0, 2**32 - 1)
else:
orig_seed = (orig_seed + 1) % (2**32)
new_ksampler_id = assembler._get_unique_id()
new_ksampler_node = assembler._get_node_template("KSampler")
new_ksampler_node['inputs']['seed'] = orig_seed
new_ksampler_node['inputs']['steps'] = 4
new_ksampler_node['inputs']['cfg'] = 1
new_ksampler_node['inputs']['sampler_name'] = "lcm"
new_ksampler_node['inputs']['scheduler'] = "simple"
new_ksampler_node['inputs']['denoise'] = 1.0
new_ksampler_node['inputs']['model'] = [pid_unet_loader_id, 0]
new_ksampler_node['inputs']['positive'] = [pid_pos_id, 0]
new_ksampler_node['inputs']['negative'] = [pid_neg_id, 0]
new_ksampler_node['inputs']['latent_image'] = [empty_latent_id, 0]
assembler.workflow[new_ksampler_id] = new_ksampler_node
pid_vae_loader_id = assembler._get_unique_id()
pid_vae_loader_node = assembler._get_node_template("VAELoader")
pid_vae_loader_node['inputs']['vae_name'] = "pixel_space"
assembler.workflow[pid_vae_loader_id] = pid_vae_loader_node
pid_vae_decode_id = assembler._get_unique_id()
pid_vae_decode_node = assembler._get_node_template("VAEDecode")
pid_vae_decode_node['inputs']['samples'] = [new_ksampler_id, 0]
pid_vae_decode_node['inputs']['vae'] = [pid_vae_loader_id, 0]
assembler.workflow[pid_vae_decode_id] = pid_vae_decode_node
if original_vae_decode_id:
for node_id, node_data in assembler.workflow.items():
if 'inputs' in node_data:
for input_name, input_val in list(node_data['inputs'].items()):
if isinstance(input_val, list) and len(input_val) == 2:
if input_val[0] == original_vae_decode_id:
node_data['inputs'][input_name] = [pid_vae_decode_id, 0]
is_vae_loader_referenced = False
if original_vae_loader_id:
for node_id, node_data in assembler.workflow.items():
if node_id == original_vae_loader_id:
continue
for input_val in node_data.get('inputs', {}).values():
if isinstance(input_val, list) and len(input_val) == 2:
if input_val[0] == original_vae_loader_id:
is_vae_loader_referenced = True
break
if is_vae_loader_referenced:
break
if original_vae_loader_id in assembler.workflow and not is_vae_loader_referenced:
del assembler.workflow[original_vae_loader_id]
if original_vae_decode_id in assembler.workflow:
del assembler.workflow[original_vae_decode_id]
print("[PiD Injector] Successfully injected PiD pipeline and replaced VAE decode/loader.") |