122 lines
3.6 KiB
Python
122 lines
3.6 KiB
Python
# !/usr/bin/env python
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# -*- coding: UTF-8 -*-
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import os
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import torch
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import gc
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from PIL import Image
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import numpy as np
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import comfy.model_management as mm
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from comfy.utils import common_upscale
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cur_path = os.path.dirname(os.path.abspath(__file__))
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def clear_comfyui_cache():
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cf_models=mm.loaded_models()
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try:
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for pipe in cf_models:
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pipe.unpatch_model(device_to=torch.device("cpu"))
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except: pass
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mm.soft_empty_cache()
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torch.cuda.empty_cache()
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max_gpu_memory = torch.cuda.max_memory_allocated()
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print(f"After Max GPU memory allocated: {max_gpu_memory / 1000 ** 3:.2f} GB")
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def gc_cleanup():
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gc.collect()
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torch.cuda.empty_cache()
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def phi2narry(img):
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img = torch.from_numpy(np.array(img).astype(np.float32) / 255.0).unsqueeze(0)
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return img
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def tensor2image(tensor):
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tensor = tensor.cpu()
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image_np = tensor.squeeze().mul(255).clamp(0, 255).byte().numpy()
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image = Image.fromarray(image_np, mode='RGB')
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return image
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def tensor2pillist(tensor_in):
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d1, _, _, _ = tensor_in.size()
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if d1 == 1:
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img_list = [tensor2image(tensor_in)]
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else:
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tensor_list = torch.chunk(tensor_in, chunks=d1)
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img_list=[tensor2image(i) for i in tensor_list]
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return img_list
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def tensor2pillist_upscale(tensor_in,width,height):
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d1, _, _, _ = tensor_in.size()
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if d1 == 1:
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img_list = [nomarl_upscale(tensor_in,width,height)]
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else:
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tensor_list = torch.chunk(tensor_in, chunks=d1)
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img_list=[nomarl_upscale(i,width,height) for i in tensor_list]
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return img_list
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def tensor2list(tensor_in,width,height):
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if tensor_in is None:
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return None
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d1, _, _, _ = tensor_in.size()
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if d1 == 1:
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tensor_list = [tensor_upscale(tensor_in,width,height)]
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else:
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tensor_list_ = torch.chunk(tensor_in, chunks=d1)
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tensor_list=[tensor_upscale(i,width,height) for i in tensor_list_]
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return tensor_list
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def tensor_upscale(tensor, width, height):
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samples = tensor.movedim(-1, 1)
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samples = common_upscale(samples, width, height, "nearest-exact", "center")
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samples = samples.movedim(1, -1)
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return samples
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def nomarl_upscale(img, width, height):
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samples = img.movedim(-1, 1)
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img = common_upscale(samples, width, height, "nearest-exact", "center")
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samples = img.movedim(1, -1)
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img = tensor2image(samples)
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return img
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def map_neg1_1_to_0_1(t):
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"""
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接受 torch.Tensor 或可转 torch.Tensor 的输入。
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可处理形状: H,W,C 或 B,H,W,C 或 B,T,H,W,C（会按元素处理）。
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返回 float tensor，范围 0..1。
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"""
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if not torch.is_tensor(t):
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t = torch.tensor(t)
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t = t.float()
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# map -1..1 -> 0..1
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t = (t + 1.0) * 0.5
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# 限幅到 [0,1]
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t = t.clamp(0.0, 1.0)
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# 保持在 cpu 端，调用方可决定是否转 device/dtype
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return t.cpu()
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def map_0_1_to_neg1_1(t):
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"""
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接受 torch.Tensor 或可转 torch.Tensor 的输入。
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可处理形状: H,W,C 或 B,H,W,C 或 B,T,H,W,C（会按元素处理）。
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确保 float，0..255 -> 0..1，再把 0..1 -> -1..1（如果已经在 -1..1 则不变）。
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"""
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if not torch.is_tensor(t):
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t = torch.tensor(t)
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t = t.float()
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# 处理 0..255 的情况
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try:
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vmax = float(t.max())
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except Exception:
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vmax = 1.0
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if vmax > 2.0:
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t = t / 255.0
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# 若当前处于 0..1 范围，则映射到 -1..1
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try:
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vmin = float(t.min())
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vmax = float(t.max())
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except Exception:
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vmin, vmax = -1.0, 1.0
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if vmin >= 0.0 and vmax <= 1.1:
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t = t * 2.0 - 1.0
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return t |