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aszc-dev-ComfyUI-CoreMLSuite/coreml_suite/core/controlnet.py
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aszc 02b6e8ece3 feat: modernize toolchain, refactor core, add tiered CI and opt-in quantization
Modernizes ComfyUI-CoreMLSuite onto Python 3.12 / torch 2.7 / coremltools 9
with a characterization-test safety net. The default conversion path is
unchanged; existing saved workflows produce identical output.

- Toolchain bump (Python 3.12, torch 2.7, coremltools 9, numpy <2) with the
  blocking upstream pins overridden.
- Framework-free logic moved into coreml_suite/core/ (no comfy/coremltools
  imports); old module paths re-export from there.
- Opt-in quantize_nbits dropdown (none|8|6|4) for k-means weight
  palettization; default none is byte-for-byte identical to before.
- Tiered CI: Tier 0 (Linux unit), Tier 1 (macOS-ARM smoke), Tier 2
  (self-hosted Apple Silicon golden-image check on the ANE).
2026-05-25 19:11:49 +02:00

68 lines
2.0 KiB
Python

"""Pure helpers around the ControlNet residual inputs of the Core ML UNet.
Re-exported by coreml_suite.controlnet. Characterization tests cover
shapes, dtype (fp16), and zero-fill fallback.
"""
from itertools import chain
from math import ceil
import numpy as np
import torch
from coreml_suite.core.latents import chunk_batch
def expand_inputs(inputs):
expanded = inputs.copy()
for k, v in inputs.items():
if isinstance(v, np.ndarray):
expanded[k] = np.concatenate([v] * 2) if v.shape[0] == 1 else v
elif isinstance(v, torch.Tensor):
expanded[k] = torch.cat([v] * 2) if v.shape[0] == 1 else v
elif isinstance(v, list):
expanded[k] = v * 2 if len(v) == 1 else v
elif isinstance(v, dict):
expand_inputs(v)
return expanded
def extract_residual_kwargs(expected_inputs, control):
if "additional_residual_0" not in expected_inputs.keys():
return {}
if control is None:
return no_control(expected_inputs)
residual_kwargs = {
"additional_residual_{}".format(i): r.cpu().numpy().astype(np.float16)
for i, r in enumerate(chain(control["output"], control["middle"]))
}
return residual_kwargs
def no_control(expected_inputs):
shapes_dict = {
k: v["shape"] for k, v in expected_inputs.items() if k.startswith("additional")
}
residual_kwargs = {
k: torch.zeros(*shape).cpu().numpy().astype(dtype=np.float16)
for k, shape in shapes_dict.items()
}
return residual_kwargs
def chunk_control(cn, target_size):
if cn is None:
return [None] * target_size
num_chunks = ceil(cn["output"][0].shape[0] / target_size)
out = [{"output": [], "middle": []} for _ in range(num_chunks)]
for k, v in cn.items():
for i, x in enumerate(v):
chunks = chunk_batch(x, (target_size, *x.shape[1:]))
for j, chunk in enumerate(chunks):
out[j][k].append(chunk)
return out