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Add callback to sampler function.

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Callback format is: callback(step, x0, x)
This commit is contained in:
comfyanonymous 2023-04-27 04:38:44 -04:00
parent 3a1f9dba20
commit 5a971cecdb
3 changed files with 22 additions and 10 deletions
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6
comfy/extra_samplers/uni_pc.py
View File

@ -712,7 +712,7 @@ class UniPC:
def sample(self, x, timesteps, t_start=None, t_end=None, order=3, skip_type='time_uniform', def sample(self, x, timesteps, t_start=None, t_end=None, order=3, skip_type='time_uniform',
method='singlestep', lower_order_final=True, denoise_to_zero=False, solver_type='dpm_solver', method='singlestep', lower_order_final=True, denoise_to_zero=False, solver_type='dpm_solver',
atol=0.0078, rtol=0.05, corrector=False, atol=0.0078, rtol=0.05, corrector=False, callback=None
): ):
t_0 = 1. / self.noise_schedule.total_N if t_end is None else t_end t_0 = 1. / self.noise_schedule.total_N if t_end is None else t_end
t_T = self.noise_schedule.T if t_start is None else t_start t_T = self.noise_schedule.T if t_start is None else t_start
@ -766,6 +766,8 @@ class UniPC:
if model_x is None: if model_x is None:
model_x = self.model_fn(x, vec_t) model_x = self.model_fn(x, vec_t)
model_prev_list[-1] = model_x model_prev_list[-1] = model_x
if callback is not None:
callback(step_index, model_prev_list[-1], x)
else: else:
raise NotImplementedError() raise NotImplementedError()
if denoise_to_zero: if denoise_to_zero:
@ -877,7 +879,7 @@ def sample_unipc(model, noise, image, sigmas, sampling_function, max_denoise, ex
order = min(3, len(timesteps) - 1) order = min(3, len(timesteps) - 1)
uni_pc = UniPC(model_fn, ns, predict_x0=True, thresholding=False, noise_mask=noise_mask, masked_image=image, noise=noise, variant=variant) uni_pc = UniPC(model_fn, ns, predict_x0=True, thresholding=False, noise_mask=noise_mask, masked_image=image, noise=noise, variant=variant)
x = uni_pc.sample(img, timesteps=timesteps, skip_type="time_uniform", method="multistep", order=order, lower_order_final=True) x = uni_pc.sample(img, timesteps=timesteps, skip_type="time_uniform", method="multistep", order=order, lower_order_final=True, callback=callback)
if not to_zero: if not to_zero:
x /= ns.marginal_alpha(timesteps[-1]) x /= ns.marginal_alpha(timesteps[-1])
return x return x

4
comfy/sample.py
View File

@ -56,7 +56,7 @@ def cleanup_additional_models(models):
for m in models: for m in models:
m.cleanup() m.cleanup()
def sample(model, noise, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, denoise=1.0, disable_noise=False, start_step=None, last_step=None, force_full_denoise=False, noise_mask=None, sigmas=None): def sample(model, noise, steps, cfg, sampler_name, scheduler, positive, negative, latent_image, denoise=1.0, disable_noise=False, start_step=None, last_step=None, force_full_denoise=False, noise_mask=None, sigmas=None, callback=None):
device = comfy.model_management.get_torch_device() device = comfy.model_management.get_torch_device()
if noise_mask is not None: if noise_mask is not None:
@ -76,7 +76,7 @@ def sample(model, noise, steps, cfg, sampler_name, scheduler, positive, negative
sampler = comfy.samplers.KSampler(real_model, steps=steps, device=device, sampler=sampler_name, scheduler=scheduler, denoise=denoise, model_options=model.model_options) sampler = comfy.samplers.KSampler(real_model, steps=steps, device=device, sampler=sampler_name, scheduler=scheduler, denoise=denoise, model_options=model.model_options)
samples = sampler.sample(noise, positive_copy, negative_copy, cfg=cfg, latent_image=latent_image, start_step=start_step, last_step=last_step, force_full_denoise=force_full_denoise, denoise_mask=noise_mask, sigmas=sigmas) samples = sampler.sample(noise, positive_copy, negative_copy, cfg=cfg, latent_image=latent_image, start_step=start_step, last_step=last_step, force_full_denoise=force_full_denoise, denoise_mask=noise_mask, sigmas=sigmas, callback=callback)
samples = samples.cpu() samples = samples.cpu()
cleanup_additional_models(models) cleanup_additional_models(models)

22
comfy/samplers.py
View File

@ -462,7 +462,7 @@ class KSampler:
self.sigmas = sigmas[-(steps + 1):] self.sigmas = sigmas[-(steps + 1):]
def sample(self, noise, positive, negative, cfg, latent_image=None, start_step=None, last_step=None, force_full_denoise=False, denoise_mask=None, sigmas=None): def sample(self, noise, positive, negative, cfg, latent_image=None, start_step=None, last_step=None, force_full_denoise=False, denoise_mask=None, sigmas=None, callback=None):
if sigmas is None: if sigmas is None:
sigmas = self.sigmas sigmas = self.sigmas
sigma_min = self.sigma_min sigma_min = self.sigma_min
@ -527,9 +527,9 @@ class KSampler:
with precision_scope(model_management.get_autocast_device(self.device)): with precision_scope(model_management.get_autocast_device(self.device)):
if self.sampler == "uni_pc": if self.sampler == "uni_pc":
samples = uni_pc.sample_unipc(self.model_wrap, noise, latent_image, sigmas, sampling_function=sampling_function, max_denoise=max_denoise, extra_args=extra_args, noise_mask=denoise_mask) samples = uni_pc.sample_unipc(self.model_wrap, noise, latent_image, sigmas, sampling_function=sampling_function, max_denoise=max_denoise, extra_args=extra_args, noise_mask=denoise_mask, callback=callback)
elif self.sampler == "uni_pc_bh2": elif self.sampler == "uni_pc_bh2":
samples = uni_pc.sample_unipc(self.model_wrap, noise, latent_image, sigmas, sampling_function=sampling_function, max_denoise=max_denoise, extra_args=extra_args, noise_mask=denoise_mask, variant='bh2') samples = uni_pc.sample_unipc(self.model_wrap, noise, latent_image, sigmas, sampling_function=sampling_function, max_denoise=max_denoise, extra_args=extra_args, noise_mask=denoise_mask, callback=callback, variant='bh2')
elif self.sampler == "ddim": elif self.sampler == "ddim":
timesteps = [] timesteps = []
for s in range(sigmas.shape[0]): for s in range(sigmas.shape[0]):
@ -537,6 +537,11 @@ class KSampler:
noise_mask = None noise_mask = None
if denoise_mask is not None: if denoise_mask is not None:
noise_mask = 1.0 - denoise_mask noise_mask = 1.0 - denoise_mask
ddim_callback = None
if callback is not None:
ddim_callback = lambda pred_x0, i: callback(i, pred_x0, None)
sampler = DDIMSampler(self.model, device=self.device) sampler = DDIMSampler(self.model, device=self.device)
sampler.make_schedule_timesteps(ddim_timesteps=timesteps, verbose=False) sampler.make_schedule_timesteps(ddim_timesteps=timesteps, verbose=False)
z_enc = sampler.stochastic_encode(latent_image, torch.tensor([len(timesteps) - 1] * noise.shape[0]).to(self.device), noise=noise, max_denoise=max_denoise) z_enc = sampler.stochastic_encode(latent_image, torch.tensor([len(timesteps) - 1] * noise.shape[0]).to(self.device), noise=noise, max_denoise=max_denoise)
@ -550,6 +555,7 @@ class KSampler:
eta=0.0, eta=0.0,
x_T=z_enc, x_T=z_enc,
x0=latent_image, x0=latent_image,
img_callback=ddim_callback,
denoise_function=sampling_function, denoise_function=sampling_function,
extra_args=extra_args, extra_args=extra_args,
mask=noise_mask, mask=noise_mask,
@ -563,13 +569,17 @@ class KSampler:
noise = noise * sigmas[0] noise = noise * sigmas[0]
k_callback = None
if callback is not None:
k_callback = lambda x: callback(x["i"], x["denoised"], x["x"])
if latent_image is not None: if latent_image is not None:
noise += latent_image noise += latent_image
if self.sampler == "dpm_fast": if self.sampler == "dpm_fast":
samples = k_diffusion_sampling.sample_dpm_fast(self.model_k, noise, sigma_min, sigmas[0], self.steps, extra_args=extra_args) samples = k_diffusion_sampling.sample_dpm_fast(self.model_k, noise, sigma_min, sigmas[0], self.steps, extra_args=extra_args, callback=k_callback)
elif self.sampler == "dpm_adaptive": elif self.sampler == "dpm_adaptive":
samples = k_diffusion_sampling.sample_dpm_adaptive(self.model_k, noise, sigma_min, sigmas[0], extra_args=extra_args) samples = k_diffusion_sampling.sample_dpm_adaptive(self.model_k, noise, sigma_min, sigmas[0], extra_args=extra_args, callback=k_callback)
else: else:
samples = getattr(k_diffusion_sampling, "sample_{}".format(self.sampler))(self.model_k, noise, sigmas, extra_args=extra_args) samples = getattr(k_diffusion_sampling, "sample_{}".format(self.sampler))(self.model_k, noise, sigmas, extra_args=extra_args, callback=k_callback)
return samples.to(torch.float32) return samples.to(torch.float32)