Spaces:
Running
on
Zero
Running
on
Zero
File size: 5,215 Bytes
4450790 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 |
import torch
class LatentRebatch:
@classmethod
def INPUT_TYPES(s):
return {"required": { "latents": ("LATENT",),
"batch_size": ("INT", {"default": 1, "min": 1, "max": 4096}),
}}
RETURN_TYPES = ("LATENT",)
INPUT_IS_LIST = True
OUTPUT_IS_LIST = (True, )
FUNCTION = "rebatch"
CATEGORY = "latent/batch"
@staticmethod
def get_batch(latents, list_ind, offset):
'''prepare a batch out of the list of latents'''
samples = latents[list_ind]['samples']
shape = samples.shape
mask = latents[list_ind]['noise_mask'] if 'noise_mask' in latents[list_ind] else torch.ones((shape[0], 1, shape[2]*8, shape[3]*8), device='cpu')
if mask.shape[-1] != shape[-1] * 8 or mask.shape[-2] != shape[-2]:
torch.nn.functional.interpolate(mask.reshape((-1, 1, mask.shape[-2], mask.shape[-1])), size=(shape[-2]*8, shape[-1]*8), mode="bilinear")
if mask.shape[0] < samples.shape[0]:
mask = mask.repeat((shape[0] - 1) // mask.shape[0] + 1, 1, 1, 1)[:shape[0]]
if 'batch_index' in latents[list_ind]:
batch_inds = latents[list_ind]['batch_index']
else:
batch_inds = [x+offset for x in range(shape[0])]
return samples, mask, batch_inds
@staticmethod
def get_slices(indexable, num, batch_size):
'''divides an indexable object into num slices of length batch_size, and a remainder'''
slices = []
for i in range(num):
slices.append(indexable[i*batch_size:(i+1)*batch_size])
if num * batch_size < len(indexable):
return slices, indexable[num * batch_size:]
else:
return slices, None
@staticmethod
def slice_batch(batch, num, batch_size):
result = [LatentRebatch.get_slices(x, num, batch_size) for x in batch]
return list(zip(*result))
@staticmethod
def cat_batch(batch1, batch2):
if batch1[0] is None:
return batch2
result = [torch.cat((b1, b2)) if torch.is_tensor(b1) else b1 + b2 for b1, b2 in zip(batch1, batch2)]
return result
def rebatch(self, latents, batch_size):
batch_size = batch_size[0]
output_list = []
current_batch = (None, None, None)
processed = 0
for i in range(len(latents)):
# fetch new entry of list
#samples, masks, indices = self.get_batch(latents, i)
next_batch = self.get_batch(latents, i, processed)
processed += len(next_batch[2])
# set to current if current is None
if current_batch[0] is None:
current_batch = next_batch
# add previous to list if dimensions do not match
elif next_batch[0].shape[-1] != current_batch[0].shape[-1] or next_batch[0].shape[-2] != current_batch[0].shape[-2]:
sliced, _ = self.slice_batch(current_batch, 1, batch_size)
output_list.append({'samples': sliced[0][0], 'noise_mask': sliced[1][0], 'batch_index': sliced[2][0]})
current_batch = next_batch
# cat if everything checks out
else:
current_batch = self.cat_batch(current_batch, next_batch)
# add to list if dimensions gone above target batch size
if current_batch[0].shape[0] > batch_size:
num = current_batch[0].shape[0] // batch_size
sliced, remainder = self.slice_batch(current_batch, num, batch_size)
for i in range(num):
output_list.append({'samples': sliced[0][i], 'noise_mask': sliced[1][i], 'batch_index': sliced[2][i]})
current_batch = remainder
#add remainder
if current_batch[0] is not None:
sliced, _ = self.slice_batch(current_batch, 1, batch_size)
output_list.append({'samples': sliced[0][0], 'noise_mask': sliced[1][0], 'batch_index': sliced[2][0]})
#get rid of empty masks
for s in output_list:
if s['noise_mask'].mean() == 1.0:
del s['noise_mask']
return (output_list,)
class ImageRebatch:
@classmethod
def INPUT_TYPES(s):
return {"required": { "images": ("IMAGE",),
"batch_size": ("INT", {"default": 1, "min": 1, "max": 4096}),
}}
RETURN_TYPES = ("IMAGE",)
INPUT_IS_LIST = True
OUTPUT_IS_LIST = (True, )
FUNCTION = "rebatch"
CATEGORY = "image/batch"
def rebatch(self, images, batch_size):
batch_size = batch_size[0]
output_list = []
all_images = []
for img in images:
for i in range(img.shape[0]):
all_images.append(img[i:i+1])
for i in range(0, len(all_images), batch_size):
output_list.append(torch.cat(all_images[i:i+batch_size], dim=0))
return (output_list,)
NODE_CLASS_MAPPINGS = {
"RebatchLatents": LatentRebatch,
"RebatchImages": ImageRebatch,
}
NODE_DISPLAY_NAME_MAPPINGS = {
"RebatchLatents": "Rebatch Latents",
"RebatchImages": "Rebatch Images",
}
|