148 lines
6.0 KiB
Python
148 lines
6.0 KiB
Python
import time
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import nodes
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import comfy.samplers
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import comfy.sample
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import latent_preview
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from .shared import PAUSE_STATE
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# --- NODE 1: STANDARD PAUSABLE SAMPLER ---
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class PSampler:
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"""
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The Pausable Sampler (Standard).
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Features: Pause & Resume. In-Memory Only.
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"""
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@classmethod
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def INPUT_TYPES(s):
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return {
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"required": {
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"model": ("MODEL",),
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"seed": ("INT", {"default": 0, "min": 0, "max": 0xffffffffffffffff}),
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"steps": ("INT", {"default": 20, "min": 1, "max": 10000}),
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"cfg": ("FLOAT", {"default": 8.0, "min": 0.0, "max": 100.0, "step": 0.1, "round": 0.01}),
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"sampler_name": (comfy.samplers.KSampler.SAMPLERS, ),
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"scheduler": (comfy.samplers.KSampler.SCHEDULERS, ),
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"positive": ("CONDITIONING", ),
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"negative": ("CONDITIONING", ),
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"latent_image": ("LATENT", ),
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"denoise": ("FLOAT", {"default": 1.0, "min": 0.0, "max": 1.0, "step": 0.01}),
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}
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}
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RETURN_TYPES = ("LATENT",)
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FUNCTION = "sample"
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CATEGORY = "Pausable/Engine"
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def sample(self, model, seed, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, denoise):
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latent_samples = latent_image["samples"]
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batch_inds = latent_image.get("batch_index") if "batch_index" in latent_image else None
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noise = comfy.sample.prepare_noise(latent_samples, seed, batch_inds)
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noise_mask = latent_image.get("noise_mask", None)
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preview_callback = latent_preview.prepare_callback(model, steps, latent_image)
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def intercept_callback(step, x0, x, total_steps):
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human_step = step + 1
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if preview_callback: preview_callback(step, x0, x, total_steps)
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if PAUSE_STATE.get("command") == "PAUSE":
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print(f"[P-Sampler] ⏸️ PAUSED at Step {human_step}. Waiting...")
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while PAUSE_STATE.get("command") == "PAUSE":
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time.sleep(0.1)
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print(f"[P-Sampler] ▶️ RESUMED.")
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try:
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samples = comfy.sample.sample(
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model, noise, steps, cfg, sampler_name, scheduler,
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positive, negative, latent_samples,
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denoise=denoise,
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disable_noise=False,
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start_step=0,
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last_step=None,
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force_full_denoise=False,
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noise_mask=noise_mask,
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callback=intercept_callback,
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seed=seed
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)
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except comfy.model_management.InterruptProcessingException:
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print("[P-Sampler] 🛑 System Interrupt. Aborting.")
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raise
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out = latent_image.copy()
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out['samples'] = samples
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return (out,)
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# --- NODE 2: ADVANCED PAUSABLE SAMPLER ---
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class PSamplerAdvanced:
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"""
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The Pausable Sampler (Advanced).
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Exposes manual control over noise and steps.
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"""
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@classmethod
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def INPUT_TYPES(s):
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return {
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"required": {
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"model": ("MODEL",),
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"add_noise": (["enable", "disable"], ),
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"noise_seed": ("INT", {"default": 0, "min": 0, "max": 0xffffffffffffffff}),
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"steps": ("INT", {"default": 20, "min": 1, "max": 10000}),
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"cfg": ("FLOAT", {"default": 8.0, "min": 0.0, "max": 100.0, "step": 0.1, "round": 0.01}),
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"sampler_name": (comfy.samplers.KSampler.SAMPLERS, ),
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"scheduler": (comfy.samplers.KSampler.SCHEDULERS, ),
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"positive": ("CONDITIONING", ),
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"negative": ("CONDITIONING", ),
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"latent_image": ("LATENT", ),
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"start_at_step": ("INT", {"default": 0, "min": 0, "max": 10000}),
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"end_at_step": ("INT", {"default": 10000, "min": 0, "max": 10000}),
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"return_with_leftover_noise": (["disable", "enable"], ),
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}
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}
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RETURN_TYPES = ("LATENT",)
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FUNCTION = "sample"
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CATEGORY = "Pausable/Engine"
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def sample(self, model, add_noise, noise_seed, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, start_at_step, end_at_step, return_with_leftover_noise):
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force_full_denoise = (return_with_leftover_noise == "disable")
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disable_noise = (add_noise == "disable")
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latent_samples = latent_image["samples"]
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if not disable_noise:
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batch_inds = latent_image.get("batch_index") if "batch_index" in latent_image else None
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noise = comfy.sample.prepare_noise(latent_samples, noise_seed, batch_inds)
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else:
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noise = torch.zeros(latent_samples.size(), dtype=latent_samples.dtype, layout=latent_samples.layout, device="cpu")
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noise_mask = latent_image.get("noise_mask", None)
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preview_callback = latent_preview.prepare_callback(model, steps, latent_image)
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def intercept_callback(step, x0, x, total_steps):
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human_step = step + 1
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if preview_callback: preview_callback(step, x0, x, total_steps)
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if PAUSE_STATE.get("command") == "PAUSE":
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print(f"[P-Sampler] ⏸️ PAUSED at Step {human_step}. Waiting...")
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while PAUSE_STATE.get("command") == "PAUSE":
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time.sleep(0.1)
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print(f"[P-Sampler] ▶️ RESUMED.")
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try:
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samples = comfy.sample.sample(
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model, noise, steps, cfg, sampler_name, scheduler,
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positive, negative, latent_samples,
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disable_noise=disable_noise,
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start_step=start_step,
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last_step=end_at_step,
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force_full_denoise=force_full_denoise,
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noise_mask=noise_mask,
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callback=intercept_callback,
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seed=noise_seed
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)
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except comfy.model_management.InterruptProcessingException:
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print("[P-Sampler] 🛑 System Interrupt. Aborting.")
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raise
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out = latent_image.copy()
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out['samples'] = samples
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return (out,)
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