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Diffstat (limited to 'source/blender/draw/intern/draw_cache_extract.h')
-rw-r--r--source/blender/draw/intern/draw_cache_extract.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_cache_extract.h b/source/blender/draw/intern/draw_cache_extract.h
index 302f9a0d3a8..f05e8e2f9d6 100644
--- a/source/blender/draw/intern/draw_cache_extract.h
+++ b/source/blender/draw/intern/draw_cache_extract.h
@@ -60,6 +60,10 @@ typedef struct DRW_MeshCDMask {
* modifiers could remove it. (see T68857) */
uint32_t edit_uv : 1;
} DRW_MeshCDMask;
+/* Keep `DRW_MeshCDMask` struct within an `uint64_t`.
+ * bit-wise and atomic operations are used to compare and update the struct.
+ * See `mesh_cd_layers_type_*` functions. */
+BLI_STATIC_ASSERT(sizeof(DRW_MeshCDMask) <= sizeof(uint64_t), "DRW_MeshCDMask exceeds 64 bits")
typedef enum eMRIterType {
MR_ITER_LOOPTRI = 1 << 0,