From 5508bfb596226f439218160024abb74ee4ac6520 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Sun, 26 Apr 2020 12:44:11 +0200
Subject: [PATCH] Vulkan: Discard negative width/height framebuffer blits. Will
 likely help #12531.

---
 GPU/Vulkan/FramebufferVulkan.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/GPU/Vulkan/FramebufferVulkan.cpp b/GPU/Vulkan/FramebufferVulkan.cpp
index 532c00dfb8..9989b7056c 100644
--- a/GPU/Vulkan/FramebufferVulkan.cpp
+++ b/GPU/Vulkan/FramebufferVulkan.cpp
@@ -493,8 +493,10 @@ void FramebufferManagerVulkan::BlitFramebuffer(VirtualFramebuffer *dst, int dstX
 		h -= srcY + h - src->bufferHeight;
 	}
 
-	if (w == 0 || h == 0)
+	if (w <= 0 || h <= 0) {
+		// The whole rectangle got clipped.
 		return;
+	}
 
 	float srcXFactor = (float)src->renderWidth / (float)src->bufferWidth;
 	float srcYFactor = (float)src->renderHeight / (float)src->bufferHeight;