From 7646c2d6def8f201dd0d2554a0aebdd295f69d09 Mon Sep 17 00:00:00 2001
From: Tibor Nagy <xnagytibor@gmail.com>
Date: Tue, 12 May 2020 10:12:48 +0200
Subject: [PATCH] sdl2: Clear Sdl2Video canvas before drawing onto it

Resizing the window could leave artifacts from the previous frame on
the canvas that is not overwritten by the self.canvas.copy(...) call.


Former-commit-id: c5479c3e9346a25f2d5e7a7f7b8198a71d16e16a
Former-commit-id: a2cc07de426ed1eca5437e30f4a15278065d856c
---
 platform/rustboyadvance-sdl2/src/video.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/platform/rustboyadvance-sdl2/src/video.rs b/platform/rustboyadvance-sdl2/src/video.rs
index f901e17..91370bd 100644
--- a/platform/rustboyadvance-sdl2/src/video.rs
+++ b/platform/rustboyadvance-sdl2/src/video.rs
@@ -1,4 +1,4 @@
-use sdl2::pixels::PixelFormatEnum;
+use sdl2::pixels::{Color, PixelFormatEnum};
 use sdl2::rect::Rect;
 use sdl2::render::{Texture, TextureCreator, WindowCanvas};
 use sdl2::video::WindowContext;
@@ -30,6 +30,8 @@ impl<'a> VideoInterface for Sdl2Video<'a> {
                 (SCREEN_WIDTH as usize) * 4,
             )
             .unwrap();
+        self.canvas.set_draw_color(Color::RGB(0, 0, 0));
+        self.canvas.clear();
         self.canvas
             .copy(
                 &self.texture,