SDL: testaudio: Fixed compiler warning on Visual Studio.

SDL Commits
1 
From dcc8805c21ebb6ef763d9ebfee047a547ccb016d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <[EMAIL REDACTED]>
Date: Mon, 30 Oct 2023 13:09:56 -0400
Subject: [PATCH] testaudio: Fixed compiler warning on Visual Studio.

---
 test/testaudio.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/test/testaudio.c b/test/testaudio.c
index a1bafa04e37c..e77901c94e72 100644
--- a/test/testaudio.c
+++ b/test/testaudio.c
@@ -359,8 +359,8 @@ static void DrawOneThing(SDL_Renderer *renderer, Thing *thing)
     if (thing->scale != 1.0f) {
         const float centerx = thing->rect.x + (thing->rect.w / 2);
         const float centery = thing->rect.y + (thing->rect.h / 2);
-        const int w = thing->texture ? thing->texture->w : 128;
-        const int h = thing->texture ? thing->texture->h : 128;
+        const int w = thing->texture ? (int) thing->texture->w : 128;
+        const int h = thing->texture ? (int) thing->texture->h : 128;
         dst.w = w * thing->scale;
         dst.h = h * thing->scale;
         dst.x = centerx - (dst.w / 2);