Mercurial > hg > orthanc-stone

diff Framework/Viewport/SdlWindow.cpp @ 1205:6009c59d8676 broker

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fix to sdl
author Sebastien Jodogne <s.jodogne@gmail.com>
date Mon, 02 Dec 2019 14:32:05 +0100
parents 4cc997207d8a
children 0ca50d275b9a
line wrap: on
line diff
--- a/Framework/Viewport/SdlWindow.cpp	Fri Nov 29 21:24:29 2019 +0100
+++ b/Framework/Viewport/SdlWindow.cpp	Mon Dec 02 14:32:05 2019 +0100
@@ -156,7 +156,14 @@
 
   void SdlWindow::Render(SDL_Surface* surface)
   {
-    //SDL_RenderClear(renderer_);
+    /**
+     * "You are strongly encouraged to call SDL_RenderClear() to
+     * initialize the backbuffer before starting each new frame's
+     * drawing, even if you plan to overwrite every pixel."
+     * https://wiki.libsdl.org/SDL_RenderPresent
+     **/
+    SDL_SetRenderDrawColor(renderer_, 0, 0, 0, 255);
+    SDL_RenderClear(renderer_);  // Clear the entire screen to our selected color
 
     SDL_Texture *texture = SDL_CreateTextureFromSurface(renderer_, surface);
     if (texture != NULL)