PyAPI: add gpu.select (initial module)

This only exposes load_id, it's needed for Python manipulator drawing.

source/blender/python/intern/CMakeLists.txt

@@ -48,6 +48,7 @@ set(SRC
 	gpu.c
 	gpu_offscreen.c
 	gpu_py_matrix.c
+	gpu_py_select.c
 	bpy.c
 	bpy_app.c
 	bpy_app_alembic.c

source/blender/python/intern/gpu.c

@@ -338,6 +338,10 @@ PyObject *GPU_initPython(void)
 	PyDict_SetItem(sys_modules, PyModule_GetNameObject(submodule), submodule);
 	Py_INCREF(submodule);
 
+	PyModule_AddObject(module, "select", (submodule = BPyInit_gpu_select()));
+	PyDict_SetItem(sys_modules, PyModule_GetNameObject(submodule), submodule);
+	Py_INCREF(submodule);
+
 	PyDict_SetItem(PyImport_GetModuleDict(), PyModule_GetNameObject(module), module);
 	return module;
 }

source/blender/python/intern/gpu.h

@@ -38,5 +38,6 @@ PyObject *GPU_initPython(void);
 
 PyObject *BPyInit_gpu_offscreen(void);
 PyObject *BPyInit_gpu_matrix(void);
+PyObject *BPyInit_gpu_select(void);
 
 #endif /* __GPU_H__ */

source/blender/python/intern/gpu_py_select.c

@@ -0,0 +1,92 @@
+/*
+ * ***** 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.
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/python/intern/gpu_py_select.c
+ *  \ingroup pythonintern
+ *
+ * This file defines the gpu.select API.
+ *
+ * \note Currently only used for manipulator selection,
+ * will need to add begin/end and a way to access the hits.
+ */
+
+#include <Python.h>
+
+#include "BLI_utildefines.h"
+
+#include "../generic/py_capi_utils.h"
+
+#include "gpu.h"
+
+#include "GPU_select.h"
+
+/* -------------------------------------------------------------------- */
+/** \name Methods
+ * \{ */
+
+PyDoc_STRVAR(pygpu_select_load_id_doc,
+"load_id(id)\n"
+"\n"
+"   Set the selection ID.\n"
+"\n"
+"   :param id: Number (32-bit unsigned int).\n"
+"   :type select: int\n"
+);
+static PyObject *pygpu_select_load_id(PyObject *UNUSED(self), PyObject *value)
+{
+	uint id;
+	if ((id = PyC_Long_AsU32(value)) == (uint)-1) {
+		return NULL;
+	}
+	GPU_select_load_id(id);
+	Py_RETURN_NONE;
+}
+/** \} */
+
+/* -------------------------------------------------------------------- */
+/** \name Module
+ * \{ */
+
+static struct PyMethodDef BPy_GPU_select_methods[] = {
+	/* Manage Stack */
+	{"load_id", (PyCFunction)pygpu_select_load_id, METH_O, pygpu_select_load_id_doc},
+	{NULL, NULL, 0, NULL}
+};
+
+PyDoc_STRVAR(BPy_GPU_select_doc,
+"This module provides access to selection."
+);
+static PyModuleDef BPy_GPU_select_module_def = {
+	PyModuleDef_HEAD_INIT,
+	.m_name = "gpu.select",
+	.m_doc = BPy_GPU_select_doc,
+	.m_methods = BPy_GPU_select_methods,
+};
+
+PyObject *BPyInit_gpu_select(void)
+{
+	PyObject *submodule;
+
+	submodule = PyModule_Create(&BPy_GPU_select_module_def);
+
+	return submodule;
+}
+
+/** \} */