1 files changed, 109 insertions, 0 deletions
diff --git a/source/blender/python/intern/bpy_app_opensubdiv.c b/source/blender/python/intern/bpy_app_opensubdiv.c
new file mode 100644
index 00000000000..7f269baf2b0
--- /dev/null
+++ b/source/blender/python/intern/bpy_app_opensubdiv.c
@@ -0,0 +1,109 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Sergey Sharybin
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/python/intern/bpy_app_opensubdiv.c
+ *  \ingroup pythonintern
+ */
+
+#include <Python.h>
+#include "BLI_utildefines.h"
+
+#include "bpy_app_opensubdiv.h"
+
+#ifdef WITH_OPENSUBDIV
+#  include "opensubdiv_capi.h"
+#endif
+
+static PyTypeObject BlenderAppOpenSubdivType;
+
+static PyStructSequence_Field app_opensubdiv_info_fields[] = {
+	{(char *)"supported", (char *)("Boolean, True when Blender is built with OpenSubdiv support")},
+	{(char *)("version"), (char *)("The OpenSubdiv version as a tuple of 3 numbers")},
+	{(char *)("version_string"), (char *)("The OpenSubdiv version formatted as a string")},
+	{NULL}
+};
+
+static PyStructSequence_Desc app_opensubdiv_info_desc = {
+	(char *)"bpy.app.opensubdiv",     /* name */
+	(char *)"This module contains information about OpenSubdiv blender is linked against",    /* doc */
+	app_opensubdiv_info_fields,    /* fields */
+	ARRAY_SIZE(app_opensubdiv_info_fields) - 1
+};
+
+static PyObject *make_opensubdiv_info(void)
+{
+	PyObject *opensubdiv_info;
+	int pos = 0;
+
+	opensubdiv_info = PyStructSequence_New(&BlenderAppOpenSubdivType);
+	if (opensubdiv_info == NULL) {
+		return NULL;
+	}
+
+#ifndef WITH_OPENSUBDIV
+#define SetStrItem(str) \
+	PyStructSequence_SET_ITEM(opensubdiv_info, pos++, PyUnicode_FromString(str))
+#endif
+
+#define SetObjItem(obj) \
+	PyStructSequence_SET_ITEM(opensubdiv_info, pos++, obj)
+
+#ifdef WITH_OPENSUBDIV
+	int curversion = openSubdiv_getVersionHex();
+	SetObjItem(PyBool_FromLong(1));
+	SetObjItem(Py_BuildValue("(iii)",
+	                         curversion / 10000, (curversion / 100) % 100, curversion % 100));
+	SetObjItem(PyUnicode_FromFormat("%2d, %2d, %2d",
+	                                curversion / 10000, (curversion / 100) % 100, curversion % 100));
+#else
+	SetObjItem(PyBool_FromLong(0));
+	SetObjItem(Py_BuildValue("(iii)", 0, 0, 0));
+	SetStrItem("Unknown");
+#endif
+
+	if (PyErr_Occurred()) {
+		Py_CLEAR(opensubdiv_info);
+		return NULL;
+	}
+
+#undef SetStrItem
+#undef SetObjItem
+
+	return opensubdiv_info;
+}
+
+PyObject *BPY_app_opensubdiv_struct(void)
+{
+	PyObject *ret;
+
+	PyStructSequence_InitType(&BlenderAppOpenSubdivType, &app_opensubdiv_info_desc);
+
+	ret = make_opensubdiv_info();
+
+	/* prevent user from creating new instances */
+	BlenderAppOpenSubdivType.tp_init = NULL;
+	BlenderAppOpenSubdivType.tp_new = NULL;
+	/* without this we can't do set(sys.modules) [#29635] */
+	BlenderAppOpenSubdivType.tp_hash = (hashfunc)_Py_HashPointer;
+
+	return ret;
+}