From abb58eec5393820ee990926915c176664e205bab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sybren=20A=2E=20St=C3=BCvel?= <sybren@stuvel.eu>
Date: Tue, 8 May 2018 10:07:21 +0200
Subject: looptri + bvhtree support for Mesh

---
 source/blender/makesdna/DNA_mesh_types.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'source/blender/makesdna/DNA_mesh_types.h')

diff --git a/source/blender/makesdna/DNA_mesh_types.h b/source/blender/makesdna/DNA_mesh_types.h
index d951f67a7c4..af81ac8423b 100644
--- a/source/blender/makesdna/DNA_mesh_types.h
+++ b/source/blender/makesdna/DNA_mesh_types.h
@@ -39,11 +39,13 @@
 struct AnimData;
 struct Ipo;
 struct Key;
+struct LinkNode;
 struct MCol;
 struct MEdge;
 struct MFace;
 struct MLoop;
 struct MLoopCol;
+struct MLoopTri;
 struct MLoopUV;
 struct MPoly;
 struct MTexPoly;
@@ -65,6 +67,18 @@ typedef struct EditMeshData {
 	const float (*polyCos)[3];
 } EditMeshData;
 
+
+/**
+ * \warning Typical access is done via #BKE_mesh_get_looptri_array, #BKE_mesh_get_looptri_num.
+ */
+struct LooptrisData {
+	/* WARNING! swapping between array (ready-to-be-used data) and array_wip (where data is actually computed)
+	 *          shall always be protected by same lock as one used for looptris computing. */
+	struct MLoopTri *array, *array_wip;
+	int num;
+	int num_alloc;
+};
+
 /* not saved in file! */
 typedef struct MeshRuntime {
 	struct EditMeshData *edit_data;
@@ -74,6 +88,11 @@ typedef struct MeshRuntime {
 	int64_t cd_dirty_edge;
 	int64_t cd_dirty_loop;
 	int64_t cd_dirty_poly;
+
+	struct LooptrisData looptris;
+
+	/** 'BVHCache', for 'BKE_bvhutil.c' */
+	struct LinkNode *bvh_cache;
 } MeshRuntime;
 
 typedef struct Mesh {
-- 
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