From 7196d6ac7e683c29eae52051b2e833f8a2762285 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Henrik=20Rydg=C3=A5rd?= <hrydgard@gmail.com>
Date: Fri, 23 Aug 2019 17:14:11 +0200
Subject: [PATCH] Default to Vulkan on Android Pie or later. Fixes #12228.

---
 Core/Config.cpp | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/Core/Config.cpp b/Core/Config.cpp
index ab9be6da50..69ee998692 100644
--- a/Core/Config.cpp
+++ b/Core/Config.cpp
@@ -574,8 +574,16 @@ static int DefaultGPUBackend() {
 	if (DoesVersionMatchWindows(6, 2, 0, 0, true)) {
 		return (int)GPUBackend::DIRECT3D11;
 	}
-#endif
+#elif PPSSPP_PLATFORM(ANDROID)
+	// Default to Vulkan only on Pie (level 28) devices or newer. Drivers before Pie
+	// were generally too unreliable to default to (with some exceptions, of course).
+	if (System_GetPropertyInt(SYSPROP_SYSTEMVERSION) >= 28) {
+		return (int)GPUBackend::VULKAN;
+	}
+#else
+	// TODO: On some additional Linux platforms, we should also default to Vulkan.
 	return (int)GPUBackend::OPENGL;
+#endif
 }
 
 int Config::NextValidBackend() {