From fe931ac9761a813c8e7d195cf99bf68ff324839c Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Tue, 28 Apr 2020 02:14:11 -0300
Subject: {maxwell_3d,buffer_cache}: Implement memory barriers using 3D
 registers

Drop MemoryBarrier from the buffer cache and use Maxwell3D's register
WaitForIdle.

To implement this on OpenGL we just call glMemoryBarrier with the
necessary bits.

Vulkan lacks this synchronization primitive, so we set an event and
immediately wait for it. This is not a pretty solution, but it's what
Vulkan can do without submitting the current command buffer to the queue
(which ends up being more expensive on the CPU).
---
 src/video_core/renderer_vulkan/wrapper.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/video_core/renderer_vulkan/wrapper.cpp')

diff --git a/src/video_core/renderer_vulkan/wrapper.cpp b/src/video_core/renderer_vulkan/wrapper.cpp
index 7f5bc1404..2ce9b0626 100644
--- a/src/video_core/renderer_vulkan/wrapper.cpp
+++ b/src/video_core/renderer_vulkan/wrapper.cpp
@@ -87,6 +87,7 @@ void Load(VkDevice device, DeviceDispatch& dld) noexcept {
     X(vkCmdSetStencilReference);
     X(vkCmdSetStencilWriteMask);
     X(vkCmdSetViewport);
+    X(vkCmdWaitEvents);
     X(vkCreateBuffer);
     X(vkCreateBufferView);
     X(vkCreateCommandPool);
-- 
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