commit dc622679e296ae2bbfd2c7ebb8b23df22cd75246
author Sam Lantinga <slouken@libsdl.org> Fri Oct 14 00:51:57 2016 -0700
committer Sam Lantinga <slouken@libsdl.org> Fri Oct 14 00:51:57 2016 -0700
tree 0e2ee46a3dc57d5f723cf14e04ba88ec13b2c9bd
parent 066439eef9f4a56cf21ed516e9509afd768307c0

Fixed divide by zero if setting integer scale without setting logical width and height

src/render/SDL_render.c

diff --git a/src/render/SDL_render.c b/src/render/SDL_render.c
index c4601ed..9475081 100644
--- a/src/render/SDL_render.c
+++ b/src/render/SDL_render.c
@@ -1145,6 +1145,9 @@
     float scale;
     SDL_Rect viewport;
 
+    if (!renderer->logical_w || !renderer->logical_h) {
+        return 0;
+    }
     if (SDL_GetRendererOutputSize(renderer, &w, &h) < 0) {
         return -1;
     }