From eda0106d08fdfbbe7c038acd3f3981b7570ac3f8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miloslav=20=C4=8C=C3=AD=C5=BE?= <tastyfish@seznam.cz>
Date: Fri, 11 Oct 2019 18:10:12 +0200
Subject: [PATCH] Optimize horizontal depth

---
 raycastlib.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/raycastlib.h b/raycastlib.h
index e3239d1..cfba3df 100644
--- a/raycastlib.h
+++ b/raycastlib.h
@@ -1092,7 +1092,8 @@ static inline int16_t _RCL_drawHorizontalColumn(
       if (doDepth)  /*constant condition - compiler should optimize it out*/\
       {\
         depth += depthIncrement;\
-        pixelInfo->depth = RCL_max(0,depth); /*TODO: optimize */\
+        pixelInfo->depth = depth * (depth > 0); /* fast abs val */ \
+        /* ^ int comparison is fast, it is not braching! (= test instr.) */\
       }\
       if (doCoords) /*constant condition - compiler should optimize it out*/\
       {\