From 633fa0e4d771a8b84b3a0e35044410fea923ef14 Mon Sep 17 00:00:00 2001
From: Thomas Goyne <plorkyeran@aegisub.org>
Date: Thu, 12 Jun 2014 16:15:44 -0700
Subject: [PATCH] Only repaint the video slider on seek if the thumb will
 actually move

Cuts CPU usage for playback in totally arbitrary circumstances by about
5%.
---
 src/video_slider.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/video_slider.cpp b/src/video_slider.cpp
index 7c9a1a42d..705def983 100644
--- a/src/video_slider.cpp
+++ b/src/video_slider.cpp
@@ -67,8 +67,10 @@ VideoSlider::VideoSlider (wxWindow* parent, agi::Context *c)
 
 void VideoSlider::SetValue(int value) {
 	if (val == value) return;
-	val = mid(0, value, max);
-	Refresh(false);
+	value = mid(0, value, max);
+	if (GetXAtValue(val) != GetXAtValue(value))
+		Refresh(false);
+	val = value;
 }
 
 void VideoSlider::VideoOpened(AsyncVideoProvider *provider) {