From 6ac3eb4d87af7793d805dc9f7fc43f45e59e212e Mon Sep 17 00:00:00 2001
From: ReinUsesLisp <reinuseslisp@airmail.cc>
Date: Fri, 21 Feb 2020 01:09:02 -0300
Subject: [PATCH] vk_state_tracker: Implement dirty flags for stencil
 properties

---
 src/video_core/renderer_vulkan/vk_rasterizer.cpp    |  3 +++
 src/video_core/renderer_vulkan/vk_state_tracker.cpp | 13 +++++++++++++
 src/video_core/renderer_vulkan/vk_state_tracker.h   |  5 +++++
 3 files changed, 21 insertions(+)

diff --git a/src/video_core/renderer_vulkan/vk_rasterizer.cpp b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
index 7029b3d5e..eb9c49d5e 100644
--- a/src/video_core/renderer_vulkan/vk_rasterizer.cpp
+++ b/src/video_core/renderer_vulkan/vk_rasterizer.cpp
@@ -1046,6 +1046,9 @@ void RasterizerVulkan::UpdateDepthBounds(Tegra::Engines::Maxwell3D& gpu) {
 }
 
 void RasterizerVulkan::UpdateStencilFaces(Tegra::Engines::Maxwell3D& gpu) {
+    if (!state_tracker.TouchStencilProperties()) {
+        return;
+    }
     const auto& regs = gpu.regs;
     if (regs.stencil_two_side_enable) {
         // Separate values per face
diff --git a/src/video_core/renderer_vulkan/vk_state_tracker.cpp b/src/video_core/renderer_vulkan/vk_state_tracker.cpp
index b55180dd8..3fd0476b6 100644
--- a/src/video_core/renderer_vulkan/vk_state_tracker.cpp
+++ b/src/video_core/renderer_vulkan/vk_state_tracker.cpp
@@ -33,6 +33,7 @@ Flags MakeInvalidationFlags() {
     flags[DepthBias] = true;
     flags[BlendConstants] = true;
     flags[DepthBounds] = true;
+    flags[StencilProperties] = true;
     return flags;
 }
 
@@ -94,6 +95,17 @@ void SetupDirtyDepthBounds(Tables& tables) {
     FillBlock(tables[0], OFF(depth_bounds), NUM(depth_bounds), DepthBounds);
 }
 
+void SetupDirtyStencilProperties(Tables& tables) {
+    auto& table = tables[0];
+    table[OFF(stencil_two_side_enable)] = StencilProperties;
+    table[OFF(stencil_front_func_ref)] = StencilProperties;
+    table[OFF(stencil_front_mask)] = StencilProperties;
+    table[OFF(stencil_front_func_mask)] = StencilProperties;
+    table[OFF(stencil_back_func_ref)] = StencilProperties;
+    table[OFF(stencil_back_mask)] = StencilProperties;
+    table[OFF(stencil_back_func_mask)] = StencilProperties;
+}
+
 } // Anonymous namespace
 
 StateTracker::StateTracker(Core::System& system)
@@ -108,6 +120,7 @@ void StateTracker::Initialize() {
     SetupDirtyDepthBias(tables);
     SetupDirtyBlendConstants(tables);
     SetupDirtyDepthBounds(tables);
+    SetupDirtyStencilProperties(tables);
 
     auto& store = dirty.on_write_stores;
     store[RenderTargets] = true;
diff --git a/src/video_core/renderer_vulkan/vk_state_tracker.h b/src/video_core/renderer_vulkan/vk_state_tracker.h
index 25b5c647b..1d8434dd0 100644
--- a/src/video_core/renderer_vulkan/vk_state_tracker.h
+++ b/src/video_core/renderer_vulkan/vk_state_tracker.h
@@ -24,6 +24,7 @@ enum : u8 {
     DepthBias,
     BlendConstants,
     DepthBounds,
+    StencilProperties,
 };
 
 } // namespace Dirty
@@ -56,6 +57,10 @@ public:
         return Exchange(Dirty::DepthBounds, false);
     }
 
+    bool TouchStencilProperties() {
+        return Exchange(Dirty::StencilProperties, false);
+    }
+
 private:
     using Flags = std::remove_reference_t<decltype(Tegra::Engines::Maxwell3D::dirty.flags)>;