1 files changed, 40 insertions, 0 deletions
diff --git a/intern/gawain/gawain/primitive.h b/intern/gawain/gawain/primitive.h
new file mode 100644
index 00000000000..c6786dc1993
--- /dev/null
+++ b/intern/gawain/gawain/primitive.h
@@ -0,0 +1,40 @@
+
+// Gawain geometric primitives
+//
+// This code is part of the Gawain library, with modifications
+// specific to integration with Blender.
+//
+// Copyright 2017 Mike Erwin
+//
+// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of
+// the MPL was not distributed with this file, You can obtain one at https://mozilla.org/MPL/2.0/.
+
+#pragma once
+
+#include "common.h"
+
+typedef enum {
+	GWN_PRIM_POINTS,
+	GWN_PRIM_LINES,
+	GWN_PRIM_TRIS,
+	GWN_PRIM_LINE_STRIP,
+	GWN_PRIM_LINE_LOOP, // GL has this, Vulkan does not
+	GWN_PRIM_TRI_STRIP,
+	GWN_PRIM_TRI_FAN,
+
+	GWN_PRIM_LINE_STRIP_ADJ,
+
+	GWN_PRIM_NONE
+} Gwn_PrimType;
+
+// what types of primitives does each shader expect?
+typedef enum {
+	GWN_PRIM_CLASS_NONE    = 0,
+	GWN_PRIM_CLASS_POINT   = (1 << 0),
+	GWN_PRIM_CLASS_LINE    = (1 << 1),
+	GWN_PRIM_CLASS_SURFACE = (1 << 2),
+	GWN_PRIM_CLASS_ANY     = GWN_PRIM_CLASS_POINT | GWN_PRIM_CLASS_LINE | GWN_PRIM_CLASS_SURFACE
+} Gwn_PrimClass;
+
+Gwn_PrimClass GWN_primtype_class(Gwn_PrimType);
+bool GWN_primtype_belongs_to_class(Gwn_PrimType, Gwn_PrimClass);