diff --git a/src/platform/client/video/sdl.c b/src/platform/client/video/sdl.c
index af1be49..282fcf8 100644
--- a/src/platform/client/video/sdl.c
+++ b/src/platform/client/video/sdl.c
@@ -82,7 +82,7 @@ uint8_t skele_video_init(skele_video_config_t cfg)
 	SDL_DisplayID display;
 	SDL_WindowFlags flags = 0;
 	const SDL_DisplayMode *mode;
-	uint16_t window_w, window_h, aw, ah;
+	uint16_t window_w, window_h;
 
 	if (!SDL_Init(SDL_INIT_VIDEO | SDL_INIT_GAMEPAD)) {
 		stk_log(STK_LOG_ERROR, "video: SDL_Init failed: %s",
@@ -125,24 +125,17 @@ uint8_t skele_video_init(skele_video_config_t cfg)
 			return SKELE_INIT_FAILURE;
 		}
 
-		aw = (uint16_t)((mode->w * 3) / 4);
-		ah = (uint16_t)((mode->h * 3) / 4);
-		cur_scale = 1;
-		while ((vid_w * (cur_scale + 1)) <= aw &&
-		       (vid_h * (cur_scale + 1)) <= ah)
-			cur_scale++;
-
+		cur_scale = max_scale(vid_w, vid_h);
 		window_w = vid_w * cur_scale;
 		window_h = vid_h * cur_scale;
 	}
 
-	rgba_buf = malloc(vid_total * sizeof(uint32_t));
+	rgba_buf = calloc(vid_total, sizeof(uint32_t));
 	if (!rgba_buf) {
 		stk_log(STK_LOG_ERROR, "video: out of memory");
 		SDL_Quit();
 		return SKELE_INIT_FAILURE;
 	}
-	memset(rgba_buf, 0, vid_total * sizeof(uint32_t));
 
 	window = SDL_CreateWindow("skele", window_w, window_h,
 				  flags | SDL_WINDOW_HIDDEN);