From 5a578ba1aedced99ca5ed59c08584ec16de4a815 Mon Sep 17 00:00:00 2001
From: Braden Obrzut <admin@maniacsvault.net>
Date: Mon, 9 Dec 2019 18:39:36 -0500
Subject: [PATCH] Fixed: GetClientWidth and GetClientHeight were still using
 SDL_Surface which on some systems would allocate an SDL_Renderer
 automatically.

---
 src/posix/sdl/sdlglvideo.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/posix/sdl/sdlglvideo.cpp b/src/posix/sdl/sdlglvideo.cpp
index f95afdfd23..39931c28ef 100644
--- a/src/posix/sdl/sdlglvideo.cpp
+++ b/src/posix/sdl/sdlglvideo.cpp
@@ -506,7 +506,11 @@ int SystemBaseFrameBuffer::GetClientWidth()
 
 	if (Priv::softpolyEnabled)
 	{
-		return SDL_GetWindowSurface(Priv::window)->w;
+		if (polyrendertarget)
+			SDL_GetRendererOutputSize(polyrendertarget, &width, nullptr);
+		else
+			SDL_GetWindowSize(Priv::window, &width, nullptr);
+		return width;
 	}
 	
 #ifdef HAVE_VULKAN
@@ -523,7 +527,11 @@ int SystemBaseFrameBuffer::GetClientHeight()
 	
 	if (Priv::softpolyEnabled)
 	{
-		return SDL_GetWindowSurface(Priv::window)->h;
+		if (polyrendertarget)
+			SDL_GetRendererOutputSize(polyrendertarget, nullptr, &height);
+		else
+			SDL_GetWindowSize(Priv::window, nullptr, &height);
+		return height;
 	}
 
 #ifdef HAVE_VULKAN