From 8e9f88faad048a8acbf38fb9fb592f7b2253de6e Mon Sep 17 00:00:00 2001
From: Eryn Wells <eryn@erynwells.me>
Date: Wed, 14 Nov 2018 07:55:03 -0800
Subject: [PATCH] Add some os_signposts to track terrain generation

---
 Terrain2/Algorithms.swift | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Terrain2/Algorithms.swift b/Terrain2/Algorithms.swift
index 3c44068..c489ca1 100644
--- a/Terrain2/Algorithms.swift
+++ b/Terrain2/Algorithms.swift
@@ -8,6 +8,9 @@
 
 import Foundation
 import Metal
+import os
+
+let Log = OSLog(subsystem: "me.erynwells.Terrain2.Algorithms", category: "DiamondSquare")
 
 enum KernelError: Error {
     case badFunction
@@ -258,6 +261,8 @@ public class DiamondSquareGenerator: TerrainGenerator {
         }
 
         func queue_render() -> [Float] {
+            os_signpost(.begin, log: Log, name: "DiamondSquare.render")
+
             var heightMap = [Float](repeating: 0, count: grid.size.w * grid.size.h)
 
             // 0. Set the corners to initial values if they haven't been set yet.
@@ -288,6 +293,8 @@ public class DiamondSquareGenerator: TerrainGenerator {
                 }
             }
 
+            os_signpost(.end, log: Log, name: "DiamondSquare.render")
+            
             return heightMap
         }