Ensure that the right window is current in SDL_GL_SwapWindow.

libsdl-org · Aug 7, 2013 · a9506a4 · a9506a4
1 parent 6a505b3
commit a9506a4
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/video/SDL_video.c b/src/video/SDL_video.c
@@ -2854,6 +2854,12 @@ SDL_GL_SwapWindow(SDL_Window * window)
         SDL_SetError("The specified window isn't an OpenGL window");
         return;
     }
+
+    if (SDL_GL_GetCurrentWindow() != window) {
+        SDL_SetError("The specified window has not been made current");
+        return;
+    }
+
     _this->GL_SwapWindow(_this, window);
 }