+static enum pc_di_primtype
+tu6_primtype(VkPrimitiveTopology topology)
+{
+ switch (topology) {
+ case VK_PRIMITIVE_TOPOLOGY_POINT_LIST:
+ return DI_PT_POINTLIST;
+ case VK_PRIMITIVE_TOPOLOGY_LINE_LIST:
+ return DI_PT_LINELIST;
+ case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP:
+ return DI_PT_LINESTRIP;
+ case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST:
+ return DI_PT_TRILIST;
+ case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP:
+ return DI_PT_TRILIST;
+ case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_FAN:
+ return DI_PT_TRIFAN;
+ case VK_PRIMITIVE_TOPOLOGY_LINE_LIST_WITH_ADJACENCY:
+ return DI_PT_LINE_ADJ;
+ case VK_PRIMITIVE_TOPOLOGY_LINE_STRIP_WITH_ADJACENCY:
+ return DI_PT_LINESTRIP_ADJ;
+ case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST_WITH_ADJACENCY:
+ return DI_PT_TRI_ADJ;
+ case VK_PRIMITIVE_TOPOLOGY_TRIANGLE_STRIP_WITH_ADJACENCY:
+ return DI_PT_TRISTRIP_ADJ;
+ case VK_PRIMITIVE_TOPOLOGY_PATCH_LIST:
+ default:
+ unreachable("invalid primitive topology");
+ return DI_PT_NONE;
+ }
+}
+