From 2393f82e792b2ac8d4aa566e5eb16d1829d2c748 Mon Sep 17 00:00:00 2001
From: d0k3 <tore.anon@gmail.com>
Date: Wed, 16 Aug 2017 17:56:21 +0200
Subject: [PATCH] Improve screen clear speed

---
 source/common/ui.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/source/common/ui.c b/source/common/ui.c
index 77006ff..4c6f3bc 100644
--- a/source/common/ui.c
+++ b/source/common/ui.c
@@ -19,7 +19,8 @@ void ClearScreen(u8* screen, int color)
 {
     int width = (screen == TOP_SCREEN) ? SCREEN_WIDTH_TOP : SCREEN_WIDTH_BOT;
     if (color == COLOR_TRANSPARENT) color = COLOR_BLACK;
-    for (int i = 0; i < (width * SCREEN_HEIGHT); i++) {
+    if (!color) memset(screen, 0x00, (width * SCREEN_HEIGHT * 3));
+    else for (int i = 0; i < (width * SCREEN_HEIGHT); i++) {
         *(screen++) = color >> 16;  // B
         *(screen++) = color >> 8;   // G
         *(screen++) = color & 0xFF; // R