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| import torch | |
| import math | |
| import os | |
| import comfy.utils | |
| import comfy.model_management | |
| import comfy.model_detection | |
| import comfy.model_patcher | |
| import comfy.cldm.cldm | |
| import comfy.t2i_adapter.adapter | |
| def broadcast_image_to(tensor, target_batch_size, batched_number): | |
| current_batch_size = tensor.shape[0] | |
| #print(current_batch_size, target_batch_size) | |
| if current_batch_size == 1: | |
| return tensor | |
| per_batch = target_batch_size // batched_number | |
| tensor = tensor[:per_batch] | |
| if per_batch > tensor.shape[0]: | |
| tensor = torch.cat([tensor] * (per_batch // tensor.shape[0]) + [tensor[:(per_batch % tensor.shape[0])]], dim=0) | |
| current_batch_size = tensor.shape[0] | |
| if current_batch_size == target_batch_size: | |
| return tensor | |
| else: | |
| return torch.cat([tensor] * batched_number, dim=0) | |
| class ControlBase: | |
| def __init__(self, device=None): | |
| self.cond_hint_original = None | |
| self.cond_hint = None | |
| self.strength = 1.0 | |
| self.timestep_percent_range = (0.0, 1.0) | |
| self.timestep_range = None | |
| if device is None: | |
| device = comfy.model_management.get_torch_device() | |
| self.device = device | |
| self.previous_controlnet = None | |
| self.global_average_pooling = False | |
| def set_cond_hint(self, cond_hint, strength=1.0, timestep_percent_range=(0.0, 1.0)): | |
| self.cond_hint_original = cond_hint | |
| self.strength = strength | |
| self.timestep_percent_range = timestep_percent_range | |
| return self | |
| def pre_run(self, model, percent_to_timestep_function): | |
| self.timestep_range = (percent_to_timestep_function(self.timestep_percent_range[0]), percent_to_timestep_function(self.timestep_percent_range[1])) | |
| if self.previous_controlnet is not None: | |
| self.previous_controlnet.pre_run(model, percent_to_timestep_function) | |
| def set_previous_controlnet(self, controlnet): | |
| self.previous_controlnet = controlnet | |
| return self | |
| def cleanup(self): | |
| if self.previous_controlnet is not None: | |
| self.previous_controlnet.cleanup() | |
| if self.cond_hint is not None: | |
| del self.cond_hint | |
| self.cond_hint = None | |
| self.timestep_range = None | |
| def get_models(self): | |
| out = [] | |
| if self.previous_controlnet is not None: | |
| out += self.previous_controlnet.get_models() | |
| return out | |
| def copy_to(self, c): | |
| c.cond_hint_original = self.cond_hint_original | |
| c.strength = self.strength | |
| c.timestep_percent_range = self.timestep_percent_range | |
| def inference_memory_requirements(self, dtype): | |
| if self.previous_controlnet is not None: | |
| return self.previous_controlnet.inference_memory_requirements(dtype) | |
| return 0 | |
| def control_merge(self, control_input, control_output, control_prev, output_dtype): | |
| out = {'input':[], 'middle':[], 'output': []} | |
| if control_input is not None: | |
| for i in range(len(control_input)): | |
| key = 'input' | |
| x = control_input[i] | |
| if x is not None: | |
| x *= self.strength | |
| if x.dtype != output_dtype: | |
| x = x.to(output_dtype) | |
| out[key].insert(0, x) | |
| if control_output is not None: | |
| for i in range(len(control_output)): | |
| if i == (len(control_output) - 1): | |
| key = 'middle' | |
| index = 0 | |
| else: | |
| key = 'output' | |
| index = i | |
| x = control_output[i] | |
| if x is not None: | |
| if self.global_average_pooling: | |
| x = torch.mean(x, dim=(2, 3), keepdim=True).repeat(1, 1, x.shape[2], x.shape[3]) | |
| x *= self.strength | |
| if x.dtype != output_dtype: | |
| x = x.to(output_dtype) | |
| out[key].append(x) | |
| if control_prev is not None: | |
| for x in ['input', 'middle', 'output']: | |
| o = out[x] | |
| for i in range(len(control_prev[x])): | |
| prev_val = control_prev[x][i] | |
| if i >= len(o): | |
| o.append(prev_val) | |
| elif prev_val is not None: | |
| if o[i] is None: | |
| o[i] = prev_val | |
| else: | |
| o[i] += prev_val | |
| return out | |
| class ControlNet(ControlBase): | |
| def __init__(self, control_model, global_average_pooling=False, device=None): | |
| super().__init__(device) | |
| self.control_model = control_model | |
| self.control_model_wrapped = comfy.model_patcher.ModelPatcher(self.control_model, load_device=comfy.model_management.get_torch_device(), offload_device=comfy.model_management.unet_offload_device()) | |
| self.global_average_pooling = global_average_pooling | |
| self.model_sampling_current = None | |
| def get_control(self, x_noisy, t, cond, batched_number): | |
| control_prev = None | |
| if self.previous_controlnet is not None: | |
| control_prev = self.previous_controlnet.get_control(x_noisy, t, cond, batched_number) | |
| if self.timestep_range is not None: | |
| if t[0] > self.timestep_range[0] or t[0] < self.timestep_range[1]: | |
| if control_prev is not None: | |
| return control_prev | |
| else: | |
| return None | |
| output_dtype = x_noisy.dtype | |
| if self.cond_hint is None or x_noisy.shape[2] * 8 != self.cond_hint.shape[2] or x_noisy.shape[3] * 8 != self.cond_hint.shape[3]: | |
| if self.cond_hint is not None: | |
| del self.cond_hint | |
| self.cond_hint = None | |
| self.cond_hint = comfy.utils.common_upscale(self.cond_hint_original, x_noisy.shape[3] * 8, x_noisy.shape[2] * 8, 'nearest-exact', "center").to(self.control_model.dtype).to(self.device) | |
| if x_noisy.shape[0] != self.cond_hint.shape[0]: | |
| self.cond_hint = broadcast_image_to(self.cond_hint, x_noisy.shape[0], batched_number) | |
| context = cond['c_crossattn'] | |
| y = cond.get('y', None) | |
| if y is not None: | |
| y = y.to(self.control_model.dtype) | |
| timestep = self.model_sampling_current.timestep(t) | |
| x_noisy = self.model_sampling_current.calculate_input(t, x_noisy) | |
| control = self.control_model(x=x_noisy.to(self.control_model.dtype), hint=self.cond_hint, timesteps=timestep.float(), context=context.to(self.control_model.dtype), y=y) | |
| return self.control_merge(None, control, control_prev, output_dtype) | |
| def copy(self): | |
| c = ControlNet(self.control_model, global_average_pooling=self.global_average_pooling) | |
| self.copy_to(c) | |
| return c | |
| def get_models(self): | |
| out = super().get_models() | |
| out.append(self.control_model_wrapped) | |
| return out | |
| def pre_run(self, model, percent_to_timestep_function): | |
| super().pre_run(model, percent_to_timestep_function) | |
| self.model_sampling_current = model.model_sampling | |
| def cleanup(self): | |
| self.model_sampling_current = None | |
| super().cleanup() | |
| class ControlLoraOps: | |
| class Linear(torch.nn.Module): | |
| def __init__(self, in_features: int, out_features: int, bias: bool = True, | |
| device=None, dtype=None) -> None: | |
| factory_kwargs = {'device': device, 'dtype': dtype} | |
| super().__init__() | |
| self.in_features = in_features | |
| self.out_features = out_features | |
| self.weight = None | |
| self.up = None | |
| self.down = None | |
| self.bias = None | |
| def forward(self, input): | |
| if self.up is not None: | |
| return torch.nn.functional.linear(input, self.weight.to(input.device) + (torch.mm(self.up.flatten(start_dim=1), self.down.flatten(start_dim=1))).reshape(self.weight.shape).type(input.dtype), self.bias) | |
| else: | |
| return torch.nn.functional.linear(input, self.weight.to(input.device), self.bias) | |
| class Conv2d(torch.nn.Module): | |
| def __init__( | |
| self, | |
| in_channels, | |
| out_channels, | |
| kernel_size, | |
| stride=1, | |
| padding=0, | |
| dilation=1, | |
| groups=1, | |
| bias=True, | |
| padding_mode='zeros', | |
| device=None, | |
| dtype=None | |
| ): | |
| super().__init__() | |
| self.in_channels = in_channels | |
| self.out_channels = out_channels | |
| self.kernel_size = kernel_size | |
| self.stride = stride | |
| self.padding = padding | |
| self.dilation = dilation | |
| self.transposed = False | |
| self.output_padding = 0 | |
| self.groups = groups | |
| self.padding_mode = padding_mode | |
| self.weight = None | |
| self.bias = None | |
| self.up = None | |
| self.down = None | |
| def forward(self, input): | |
| if self.up is not None: | |
| return torch.nn.functional.conv2d(input, self.weight.to(input.device) + (torch.mm(self.up.flatten(start_dim=1), self.down.flatten(start_dim=1))).reshape(self.weight.shape).type(input.dtype), self.bias, self.stride, self.padding, self.dilation, self.groups) | |
| else: | |
| return torch.nn.functional.conv2d(input, self.weight.to(input.device), self.bias, self.stride, self.padding, self.dilation, self.groups) | |
| def conv_nd(self, dims, *args, **kwargs): | |
| if dims == 2: | |
| return self.Conv2d(*args, **kwargs) | |
| else: | |
| raise ValueError(f"unsupported dimensions: {dims}") | |
| class ControlLora(ControlNet): | |
| def __init__(self, control_weights, global_average_pooling=False, device=None): | |
| ControlBase.__init__(self, device) | |
| self.control_weights = control_weights | |
| self.global_average_pooling = global_average_pooling | |
| def pre_run(self, model, percent_to_timestep_function): | |
| super().pre_run(model, percent_to_timestep_function) | |
| controlnet_config = model.model_config.unet_config.copy() | |
| controlnet_config.pop("out_channels") | |
| controlnet_config["hint_channels"] = self.control_weights["input_hint_block.0.weight"].shape[1] | |
| controlnet_config["operations"] = ControlLoraOps() | |
| self.control_model = comfy.cldm.cldm.ControlNet(**controlnet_config) | |
| dtype = model.get_dtype() | |
| self.control_model.to(dtype) | |
| self.control_model.to(comfy.model_management.get_torch_device()) | |
| diffusion_model = model.diffusion_model | |
| sd = diffusion_model.state_dict() | |
| cm = self.control_model.state_dict() | |
| for k in sd: | |
| weight = comfy.model_management.resolve_lowvram_weight(sd[k], diffusion_model, k) | |
| try: | |
| comfy.utils.set_attr(self.control_model, k, weight) | |
| except: | |
| pass | |
| for k in self.control_weights: | |
| if k not in {"lora_controlnet"}: | |
| comfy.utils.set_attr(self.control_model, k, self.control_weights[k].to(dtype).to(comfy.model_management.get_torch_device())) | |
| def copy(self): | |
| c = ControlLora(self.control_weights, global_average_pooling=self.global_average_pooling) | |
| self.copy_to(c) | |
| return c | |
| def cleanup(self): | |
| del self.control_model | |
| self.control_model = None | |
| super().cleanup() | |
| def get_models(self): | |
| out = ControlBase.get_models(self) | |
| return out | |
| def inference_memory_requirements(self, dtype): | |
| return comfy.utils.calculate_parameters(self.control_weights) * comfy.model_management.dtype_size(dtype) + ControlBase.inference_memory_requirements(self, dtype) | |
| def load_controlnet(ckpt_path, model=None): | |
| controlnet_data = comfy.utils.load_torch_file(ckpt_path, safe_load=True) | |
| if "lora_controlnet" in controlnet_data: | |
| return ControlLora(controlnet_data) | |
| controlnet_config = None | |
| if "controlnet_cond_embedding.conv_in.weight" in controlnet_data: #diffusers format | |
| unet_dtype = comfy.model_management.unet_dtype() | |
| controlnet_config = comfy.model_detection.unet_config_from_diffusers_unet(controlnet_data, unet_dtype) | |
| diffusers_keys = comfy.utils.unet_to_diffusers(controlnet_config) | |
| diffusers_keys["controlnet_mid_block.weight"] = "middle_block_out.0.weight" | |
| diffusers_keys["controlnet_mid_block.bias"] = "middle_block_out.0.bias" | |
| count = 0 | |
| loop = True | |
| while loop: | |
| suffix = [".weight", ".bias"] | |
| for s in suffix: | |
| k_in = "controlnet_down_blocks.{}{}".format(count, s) | |
| k_out = "zero_convs.{}.0{}".format(count, s) | |
| if k_in not in controlnet_data: | |
| loop = False | |
| break | |
| diffusers_keys[k_in] = k_out | |
| count += 1 | |
| count = 0 | |
| loop = True | |
| while loop: | |
| suffix = [".weight", ".bias"] | |
| for s in suffix: | |
| if count == 0: | |
| k_in = "controlnet_cond_embedding.conv_in{}".format(s) | |
| else: | |
| k_in = "controlnet_cond_embedding.blocks.{}{}".format(count - 1, s) | |
| k_out = "input_hint_block.{}{}".format(count * 2, s) | |
| if k_in not in controlnet_data: | |
| k_in = "controlnet_cond_embedding.conv_out{}".format(s) | |
| loop = False | |
| diffusers_keys[k_in] = k_out | |
| count += 1 | |
| new_sd = {} | |
| for k in diffusers_keys: | |
| if k in controlnet_data: | |
| new_sd[diffusers_keys[k]] = controlnet_data.pop(k) | |
| leftover_keys = controlnet_data.keys() | |
| if len(leftover_keys) > 0: | |
| print("leftover keys:", leftover_keys) | |
| controlnet_data = new_sd | |
| pth_key = 'control_model.zero_convs.0.0.weight' | |
| pth = False | |
| key = 'zero_convs.0.0.weight' | |
| if pth_key in controlnet_data: | |
| pth = True | |
| key = pth_key | |
| prefix = "control_model." | |
| elif key in controlnet_data: | |
| prefix = "" | |
| else: | |
| net = load_t2i_adapter(controlnet_data) | |
| if net is None: | |
| print("error checkpoint does not contain controlnet or t2i adapter data", ckpt_path) | |
| return net | |
| if controlnet_config is None: | |
| unet_dtype = comfy.model_management.unet_dtype() | |
| controlnet_config = comfy.model_detection.model_config_from_unet(controlnet_data, prefix, unet_dtype, True).unet_config | |
| controlnet_config.pop("out_channels") | |
| controlnet_config["hint_channels"] = controlnet_data["{}input_hint_block.0.weight".format(prefix)].shape[1] | |
| control_model = comfy.cldm.cldm.ControlNet(**controlnet_config) | |
| if pth: | |
| if 'difference' in controlnet_data: | |
| if model is not None: | |
| comfy.model_management.load_models_gpu([model]) | |
| model_sd = model.model_state_dict() | |
| for x in controlnet_data: | |
| c_m = "control_model." | |
| if x.startswith(c_m): | |
| sd_key = "diffusion_model.{}".format(x[len(c_m):]) | |
| if sd_key in model_sd: | |
| cd = controlnet_data[x] | |
| cd += model_sd[sd_key].type(cd.dtype).to(cd.device) | |
| else: | |
| print("WARNING: Loaded a diff controlnet without a model. It will very likely not work.") | |
| class WeightsLoader(torch.nn.Module): | |
| pass | |
| w = WeightsLoader() | |
| w.control_model = control_model | |
| missing, unexpected = w.load_state_dict(controlnet_data, strict=False) | |
| else: | |
| missing, unexpected = control_model.load_state_dict(controlnet_data, strict=False) | |
| print(missing, unexpected) | |
| control_model = control_model.to(unet_dtype) | |
| global_average_pooling = False | |
| filename = os.path.splitext(ckpt_path)[0] | |
| if filename.endswith("_shuffle") or filename.endswith("_shuffle_fp16"): #TODO: smarter way of enabling global_average_pooling | |
| global_average_pooling = True | |
| control = ControlNet(control_model, global_average_pooling=global_average_pooling) | |
| return control | |
| class T2IAdapter(ControlBase): | |
| def __init__(self, t2i_model, channels_in, device=None): | |
| super().__init__(device) | |
| self.t2i_model = t2i_model | |
| self.channels_in = channels_in | |
| self.control_input = None | |
| def scale_image_to(self, width, height): | |
| unshuffle_amount = self.t2i_model.unshuffle_amount | |
| width = math.ceil(width / unshuffle_amount) * unshuffle_amount | |
| height = math.ceil(height / unshuffle_amount) * unshuffle_amount | |
| return width, height | |
| def get_control(self, x_noisy, t, cond, batched_number): | |
| control_prev = None | |
| if self.previous_controlnet is not None: | |
| control_prev = self.previous_controlnet.get_control(x_noisy, t, cond, batched_number) | |
| if self.timestep_range is not None: | |
| if t[0] > self.timestep_range[0] or t[0] < self.timestep_range[1]: | |
| if control_prev is not None: | |
| return control_prev | |
| else: | |
| return None | |
| if self.cond_hint is None or x_noisy.shape[2] * 8 != self.cond_hint.shape[2] or x_noisy.shape[3] * 8 != self.cond_hint.shape[3]: | |
| if self.cond_hint is not None: | |
| del self.cond_hint | |
| self.control_input = None | |
| self.cond_hint = None | |
| width, height = self.scale_image_to(x_noisy.shape[3] * 8, x_noisy.shape[2] * 8) | |
| self.cond_hint = comfy.utils.common_upscale(self.cond_hint_original, width, height, 'nearest-exact', "center").float().to(self.device) | |
| if self.channels_in == 1 and self.cond_hint.shape[1] > 1: | |
| self.cond_hint = torch.mean(self.cond_hint, 1, keepdim=True) | |
| if x_noisy.shape[0] != self.cond_hint.shape[0]: | |
| self.cond_hint = broadcast_image_to(self.cond_hint, x_noisy.shape[0], batched_number) | |
| if self.control_input is None: | |
| self.t2i_model.to(x_noisy.dtype) | |
| self.t2i_model.to(self.device) | |
| self.control_input = self.t2i_model(self.cond_hint.to(x_noisy.dtype)) | |
| self.t2i_model.cpu() | |
| control_input = list(map(lambda a: None if a is None else a.clone(), self.control_input)) | |
| mid = None | |
| if self.t2i_model.xl == True: | |
| mid = control_input[-1:] | |
| control_input = control_input[:-1] | |
| return self.control_merge(control_input, mid, control_prev, x_noisy.dtype) | |
| def copy(self): | |
| c = T2IAdapter(self.t2i_model, self.channels_in) | |
| self.copy_to(c) | |
| return c | |
| def load_t2i_adapter(t2i_data): | |
| if 'adapter' in t2i_data: | |
| t2i_data = t2i_data['adapter'] | |
| if 'adapter.body.0.resnets.0.block1.weight' in t2i_data: #diffusers format | |
| prefix_replace = {} | |
| for i in range(4): | |
| for j in range(2): | |
| prefix_replace["adapter.body.{}.resnets.{}.".format(i, j)] = "body.{}.".format(i * 2 + j) | |
| prefix_replace["adapter.body.{}.".format(i, j)] = "body.{}.".format(i * 2) | |
| prefix_replace["adapter."] = "" | |
| t2i_data = comfy.utils.state_dict_prefix_replace(t2i_data, prefix_replace) | |
| keys = t2i_data.keys() | |
| if "body.0.in_conv.weight" in keys: | |
| cin = t2i_data['body.0.in_conv.weight'].shape[1] | |
| model_ad = comfy.t2i_adapter.adapter.Adapter_light(cin=cin, channels=[320, 640, 1280, 1280], nums_rb=4) | |
| elif 'conv_in.weight' in keys: | |
| cin = t2i_data['conv_in.weight'].shape[1] | |
| channel = t2i_data['conv_in.weight'].shape[0] | |
| ksize = t2i_data['body.0.block2.weight'].shape[2] | |
| use_conv = False | |
| down_opts = list(filter(lambda a: a.endswith("down_opt.op.weight"), keys)) | |
| if len(down_opts) > 0: | |
| use_conv = True | |
| xl = False | |
| if cin == 256 or cin == 768: | |
| xl = True | |
| model_ad = comfy.t2i_adapter.adapter.Adapter(cin=cin, channels=[channel, channel*2, channel*4, channel*4][:4], nums_rb=2, ksize=ksize, sk=True, use_conv=use_conv, xl=xl) | |
| else: | |
| return None | |
| missing, unexpected = model_ad.load_state_dict(t2i_data) | |
| if len(missing) > 0: | |
| print("t2i missing", missing) | |
| if len(unexpected) > 0: | |
| print("t2i unexpected", unexpected) | |
| return T2IAdapter(model_ad, model_ad.input_channels) | |