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Update to cvnp 721e84e3cd3f5abd932c6a34cc8dd62096908550 #327

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Merged
virtuald merged 1 commit into from
Sep 15, 2026
Merged

Update to cvnp 721e84e3cd3f5abd932c6a34cc8dd62096908550 #327

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16 changes: 13 additions & 3 deletions subprojects/robotpy-cscore/cscore/cvnp/cvnp.h
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@
#include <opencv2/core/core.hpp>
#include <pybind11/numpy.h>

#include <cstring>
#include <iostream>
#include <stdexcept>
#include <vector>
Expand Down Expand Up @@ -61,9 +62,18 @@ namespace cvnp
if (a.size() != mat_size)
throw std::runtime_error("Bad size");

_Tp* arrayValues = (_Tp*) a.data(0);
for (size_t i = 0; i < mat_size; ++i)
out_matrix.val[i] = arrayValues[i];
using ExpectedArray = pybind11::array_t<_Tp, pybind11::array::c_style>;
const auto dtype = a.dtype();
const auto byte_order = dtype.byteorder();
if (!ExpectedArray::check_(a) || dtype.itemsize() != sizeof(_Tp)
|| (byte_order != '=' && byte_order != '|'))
throw std::invalid_argument("Incompatible numpy array dtype or layout");

for (pybind11::ssize_t axis = 0; axis < a.ndim(); ++axis)
if (a.strides(axis) <= 0)
throw std::invalid_argument("Incompatible numpy array stride");

std::memcpy(out_matrix.val, a.data(), mat_size * sizeof(_Tp));
}
} // namespace cvnp

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