From e96ee6ed897090223f897a344d090b3f172c4af6 Mon Sep 17 00:00:00 2001
From: Clownacy <Clownacy@users.noreply.github.com>
Date: Mon, 14 Sep 2020 23:43:18 +0100
Subject: [PATCH] Don't leave dangling OpenGL texture IDs

---
 src/Backends/Rendering/OpenGL3.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/Backends/Rendering/OpenGL3.cpp b/src/Backends/Rendering/OpenGL3.cpp
index 4368f7de..b9526670 100644
--- a/src/Backends/Rendering/OpenGL3.cpp
+++ b/src/Backends/Rendering/OpenGL3.cpp
@@ -675,9 +675,17 @@ void RenderBackend_FreeSurface(RenderBackend_Surface *surface)
 		return;
 
 	// Flush the vertex buffer if we're about to destroy its texture
-	// TODO - This leaves `last_source_texture`/`last_destination_texture` dangling
-	if (surface->texture_id == last_source_texture || surface->texture_id == last_destination_texture)
+	if (surface->texture_id == last_source_texture)
+	{
 		FlushVertexBuffer();
+		last_source_texture = 0;
+	}
+
+	if (surface->texture_id == last_destination_texture)
+	{
+		FlushVertexBuffer();
+		last_destination_texture = 0;
+	}
 
 	glDeleteTextures(1, &surface->texture_id);
 	free(surface);