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# pylint: disable=invalid-name, unused-argument
"""Faster R-CNN and Mask R-CNN operations."""
import topi
from topi.util import get_const_tuple
from .. import op as reg
from .. import strategy
from ..op import OpPattern

# roi_align
reg.register_strategy("vision.roi_align", strategy.roi_align_strategy)
reg.register_pattern("vision.roi_align", OpPattern.OUT_ELEMWISE_FUSABLE)

# roi_pool
@reg.register_compute("vision.roi_pool")
def compute_roi_pool(attrs, inputs, _):
    """Compute definition of roi_pool"""
    assert attrs.layout == "NCHW"
    return [topi.vision.rcnn.roi_pool_nchw(
        inputs[0], inputs[1], pooled_size=get_const_tuple(attrs.pooled_size),
        spatial_scale=attrs.spatial_scale)]

reg.register_schedule("vision.roi_pool", strategy.schedule_roi_pool)
reg.register_pattern("vision.roi_pool", OpPattern.OUT_ELEMWISE_FUSABLE)

# proposal
reg.register_strategy("vision.proposal", strategy.proposal_strategy)
reg.register_pattern("vision.proposal", OpPattern.OPAQUE)
