From be9f6b6e8e39a711dcfa7806f894b8ec3ff49ca9 Mon Sep 17 00:00:00 2001
From: Jon Nordby <jononor@gmail.com>
Date: Sun, 27 Apr 2025 21:38:29 +0200
Subject: bindings: Example of using pybind11 with numpy

---
 bindings/galearn_pdm.cpp | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 bindings/galearn_pdm.cpp

(limited to 'bindings/galearn_pdm.cpp')

diff --git a/bindings/galearn_pdm.cpp b/bindings/galearn_pdm.cpp
new file mode 100644
index 0000000..9274a01
--- /dev/null
+++ b/bindings/galearn_pdm.cpp
@@ -0,0 +1,29 @@
+#include <pybind11/pybind11.h>
+#include <pybind11/numpy.h>
+
+namespace py = pybind11;
+
+void process(py::array_t<uint8_t> arr1, py::array_t<int16_t> arr2) {
+    // Check shapes or sizes if needed
+    auto buf1 = arr1.request();
+    auto buf2 = arr2.request();
+
+    if (buf1.ndim != 1 || buf2.ndim != 1) {
+        throw std::runtime_error("Only 1D arrays supported");
+    }
+
+    if (buf1.size < buf2.size) {
+        throw std::runtime_error("Input 1 must be same or larger than input 2");
+    }
+
+    // Example: access data
+    uint8_t* in = static_cast<uint8_t*>(buf1.ptr);
+    int16_t* out = static_cast<int16_t*>(buf2.ptr);
+    for (int i=0; i<buf2.size; i++) {
+        out[i] = in[i] + 1;
+    }
+}
+
+PYBIND11_MODULE(galearn_pdm, m) {
+    m.def("process", &process, "Process two numpy arrays (uint8 and int16)");
+}
-- 
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