From: Toni Wilen <twilen@winuae.net>
Date: Thu, 9 Nov 2023 17:17:40 +0000 (+0200)
Subject: Always enable ALLOW_TEARING if no vsync.
X-Git-Tag: 5.1.0~58
X-Git-Url: https://git.unchartedbackwaters.co.uk/w/?a=commitdiff_plain;h=4cae2257c22a0d756f4bef230a7369d70aa804e2;p=francis%2Fwinuae.git

Always enable ALLOW_TEARING if no vsync.
---

diff --git a/od-win32/direct3d11.cpp b/od-win32/direct3d11.cpp
index 9a1c6b7a..3b461d73 100644
--- a/od-win32/direct3d11.cpp
+++ b/od-win32/direct3d11.cpp
@@ -3357,7 +3357,7 @@ static void do_present(struct d3d11struct *d3d)
 	UINT syncinterval = d3d->vblankintervals;
 	// only if no vsync or low latency vsync
 	if (d3d->m_tearingSupport && (d3d->swapChainDesc.Flags & DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING) && (!vsync || apm->gfx_vsyncmode)) {
-		if (apm->gfx_vsyncmode || d3d->num > 0 || currprefs.turbo_emulation || currprefs.gfx_variable_sync) {
+		if (apm->gfx_vsyncmode || d3d->num > 0 || currprefs.turbo_emulation || (currprefs.gfx_variable_sync > 0 || (isfs(d3d) <= 0) && currprefs.gfx_variable_sync >= 0)) {
 			presentFlags |= DXGI_PRESENT_ALLOW_TEARING;
 			syncinterval = 0;
 		}