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diff --git a/source/blender/gpu/GPU_immediate_util.h b/source/blender/gpu/GPU_immediate_util.h
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+++ b/source/blender/gpu/GPU_immediate_util.h
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+/*
+ * ***** 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 GPU_immediate_util.h
+ *  \ingroup gpu
+ *
+ * Utility drawing functions (rough equivalent to OpenGL's GLU)
+ */
+
+#ifndef __GPU_IMMEDIATE_UTIL_H__
+#define __GPU_IMMEDIATE_UTIL_H__
+
+void imm_cpack(uint x);
+
+void imm_draw_circle_wire_2d(uint shdr_pos, float x, float y, float radius, int nsegments);
+void imm_draw_circle_fill_2d(uint shdr_pos, float x, float y, float radius, int nsegments);
+
+void imm_draw_circle_wire_aspect_2d(uint shdr_pos, float x, float y, float radius_x, float radius_y, int nsegments);
+void imm_draw_circle_fill_aspect_2d(uint shdr_pos, float x, float y, float radius_x, float radius_y, int nsegments);
+
+/* use this version when Gwn_VertFormat has a vec3 position */
+void imm_draw_circle_wire_3d(uint pos, float x, float y, float radius, int nsegments);
+void imm_draw_circle_fill_3d(uint pos, float x, float y, float radius, int nsegments);
+
+void imm_draw_disk_partial_fill_2d(
+        uint pos, float x, float y,
+        float radius_inner, float radius_outer, int nsegments, float start, float sweep);
+
+void imm_draw_box_wire_2d(uint pos, float x1, float y1, float x2, float y2);
+void imm_draw_box_wire_3d(uint pos, float x1, float y1, float x2, float y2);
+
+void imm_draw_box_checker_2d(float x1, float y1, float x2, float y2);
+
+void imm_draw_cube_fill_3d(uint pos, const float co[3], const float aspect[3]);
+void imm_draw_cube_wire_3d(uint pos, const float co[3], const float aspect[3]);
+
+void imm_draw_cylinder_fill_normal_3d(
+        uint pos, uint nor, float base, float top, float height,
+        int slices, int stacks);
+void imm_draw_cylinder_wire_3d(
+        uint pos, float base, float top, float height,
+        int slices, int stacks);
+void imm_draw_cylinder_fill_3d(
+        uint pos, float base, float top, float height,
+        int slices, int stacks);
+
+#endif  /* __GPU_IMMEDIATE_UTIL_H__ */