1 files changed, 98 insertions, 0 deletions
diff --git a/sources/pyside6/libpyside/pyside_numpy.cpp b/sources/pyside6/libpyside/pyside_numpy.cpp
new file mode 100644
index 000000000..5f43cc5ce
--- /dev/null
+++ b/sources/pyside6/libpyside/pyside_numpy.cpp
@@ -0,0 +1,98 @@
+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "pyside_numpy.h"
+#include <sbknumpyview.h>
+
+// Convert X,Y of type T data to a list of points (QPoint, PointF)
+template <class T, class Point>
+static QList<Point>
+    xyDataToQPointHelper(const void *xData, const void *yData, qsizetype size)
+{
+    auto *x = reinterpret_cast<const T *>(xData);
+    auto *y = reinterpret_cast<const T *>(yData);
+    QList<Point> result;
+    result.reserve(size);
+    for (auto xEnd = x + size; x < xEnd; ++x, ++y)
+        result.append(Point(*x, *y));
+    return result;
+}
+
+// Convert X,Y of double/float type data to a list of QPoint (rounding)
+template <class T>
+static QList<QPoint>
+    xyFloatDataToQPointHelper(const void *xData, const void *yData, qsizetype size)
+{
+    auto *x = reinterpret_cast<const T *>(xData);
+    auto *y = reinterpret_cast<const T *>(yData);
+    QList<QPoint> result;
+    result.reserve(size);
+    for (auto xEnd = x + size; x < xEnd; ++x, ++y)
+        result.append(QPoint(qRound(*x), qRound(*y)));
+    return result;
+}
+
+namespace PySide::Numpy
+{
+
+QList<QPointF> xyDataToQPointFList(PyObject *pyXIn, PyObject *pyYIn)
+{
+    auto xv = Shiboken::Numpy::View::fromPyObject(pyXIn);
+    auto yv = Shiboken::Numpy::View::fromPyObject(pyYIn);
+    if (!xv.sameLayout(yv))
+        return {};
+    const qsizetype size = qMin(xv.dimensions[0], yv.dimensions[0]);
+    if (size == 0)
+        return {};
+    switch (xv.type) {
+    case Shiboken::Numpy::View::Int16:
+        return xyDataToQPointHelper<int16_t, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Unsigned16:
+        return xyDataToQPointHelper<uint16_t, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Int:
+        return xyDataToQPointHelper<int, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Unsigned:
+        return xyDataToQPointHelper<unsigned, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Int64:
+        return xyDataToQPointHelper<int64_t, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Unsigned64:
+        return xyDataToQPointHelper<uint64_t, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Float:
+        return xyDataToQPointHelper<float, QPointF>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Double:
+        break;
+    }
+    return xyDataToQPointHelper<double, QPointF>(xv.data, yv.data, size);
+}
+
+QList<QPoint> xyDataToQPointList(PyObject *pyXIn, PyObject *pyYIn)
+{
+    auto xv = Shiboken::Numpy::View::fromPyObject(pyXIn);
+    auto yv = Shiboken::Numpy::View::fromPyObject(pyYIn);
+    if (!xv.sameLayout(yv))
+        return {};
+    const qsizetype size = qMin(xv.dimensions[0], yv.dimensions[0]);
+    if (size == 0)
+        return {};
+    switch (xv.type) {
+    case Shiboken::Numpy::View::Int16:
+        return xyDataToQPointHelper<int16_t, QPoint>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Unsigned16:
+        return xyDataToQPointHelper<uint16_t, QPoint>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Int:
+        return xyDataToQPointHelper<int, QPoint>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Unsigned:
+        return xyDataToQPointHelper<unsigned, QPoint>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Int64:
+        return xyDataToQPointHelper<int64_t, QPoint>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Unsigned64:
+        return xyDataToQPointHelper<uint64_t, QPoint>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Float:
+        return xyFloatDataToQPointHelper<float>(xv.data, yv.data, size);
+    case Shiboken::Numpy::View::Double:
+        break;
+    }
+    return xyFloatDataToQPointHelper<double>(xv.data, yv.data, size);
+}
+
+} //namespace PySide::Numpy