From 0104e28fe4215468b8c444500e24b62d1ec0cc56 Mon Sep 17 00:00:00 2001
From: FernandoS27 <fsahmkow27@gmail.com>
Date: Thu, 25 Nov 2021 11:42:20 +0100
Subject: Vulkan: Add support for VK_EXT_depth_clip_control.

---
 src/video_core/vulkan_common/vulkan_device.cpp | 25 +++++++++++++++++++++++++
 src/video_core/vulkan_common/vulkan_device.h   |  6 ++++++
 2 files changed, 31 insertions(+)

(limited to 'src/video_core/vulkan_common')

diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index 6a2ad4b1d..3604c83c1 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -660,6 +660,16 @@ Device::Device(VkInstance instance_, vk::PhysicalDevice physical_, VkSurfaceKHR
         LOG_INFO(Render_Vulkan, "Device doesn't support depth range unrestricted");
     }
 
+    VkPhysicalDeviceDepthClipControlFeaturesEXT depth_clip_control_features;
+    if (ext_depth_clip_control) {
+        depth_clip_control_features = {
+            .sType = VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DEPTH_CLIP_CONTROL_FEATURES_EXT,
+            .pNext = nullptr,
+            .depthClipControl = VK_TRUE,
+        };
+        SetNext(next, depth_clip_control_features);
+    }
+
     VkDeviceDiagnosticsConfigCreateInfoNV diagnostics_nv;
     if (Settings::values.enable_nsight_aftermath && nv_device_diagnostics_config) {
         nsight_aftermath_tracker = std::make_unique<NsightAftermathTracker>();
@@ -1083,6 +1093,7 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
     bool has_ext_vertex_input_dynamic_state{};
     bool has_ext_line_rasterization{};
     bool has_ext_primitive_topology_list_restart{};
+    bool has_ext_depth_clip_control{};
     for (const std::string& extension : supported_extensions) {
         const auto test = [&](std::optional<std::reference_wrapper<bool>> status, const char* name,
                               bool push) {
@@ -1116,6 +1127,7 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
         test(ext_shader_stencil_export, VK_EXT_SHADER_STENCIL_EXPORT_EXTENSION_NAME, true);
         test(ext_conservative_rasterization, VK_EXT_CONSERVATIVE_RASTERIZATION_EXTENSION_NAME,
              true);
+        test(has_ext_depth_clip_control, VK_EXT_DEPTH_CLIP_CONTROL_EXTENSION_NAME, false);
         test(has_ext_transform_feedback, VK_EXT_TRANSFORM_FEEDBACK_EXTENSION_NAME, false);
         test(has_ext_custom_border_color, VK_EXT_CUSTOM_BORDER_COLOR_EXTENSION_NAME, false);
         test(has_ext_extended_dynamic_state, VK_EXT_EXTENDED_DYNAMIC_STATE_EXTENSION_NAME, false);
@@ -1279,6 +1291,19 @@ std::vector<const char*> Device::LoadExtensions(bool requires_surface) {
             ext_line_rasterization = true;
         }
     }
+    if (has_ext_depth_clip_control) {
+        VkPhysicalDeviceDepthClipControlFeaturesEXT depth_clip_control_features;
+        depth_clip_control_features.sType =
+            VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_DEPTH_CLIP_CONTROL_FEATURES_EXT;
+        depth_clip_control_features.pNext = nullptr;
+        features.pNext = &depth_clip_control_features;
+        physical.GetFeatures2(features);
+
+        if (depth_clip_control_features.depthClipControl) {
+            extensions.push_back(VK_EXT_DEPTH_CLIP_CONTROL_EXTENSION_NAME);
+            ext_depth_clip_control = true;
+        }
+    }
     if (has_khr_workgroup_memory_explicit_layout) {
         VkPhysicalDeviceWorkgroupMemoryExplicitLayoutFeaturesKHR layout;
         layout.sType =
diff --git a/src/video_core/vulkan_common/vulkan_device.h b/src/video_core/vulkan_common/vulkan_device.h
index db802437c..3755275c3 100644
--- a/src/video_core/vulkan_common/vulkan_device.h
+++ b/src/video_core/vulkan_common/vulkan_device.h
@@ -256,6 +256,11 @@ public:
         return ext_depth_range_unrestricted;
     }
 
+    /// Returns true if the device supports VK_EXT_depth_clip_control.
+    bool IsExtDepthClipControlSupported() const {
+        return ext_depth_clip_control;
+    }
+
     /// Returns true if the device supports VK_EXT_shader_viewport_index_layer.
     bool IsExtShaderViewportIndexLayerSupported() const {
         return ext_shader_viewport_index_layer;
@@ -446,6 +451,7 @@ private:
     bool khr_swapchain_mutable_format{};         ///< Support for VK_KHR_swapchain_mutable_format.
     bool ext_index_type_uint8{};                 ///< Support for VK_EXT_index_type_uint8.
     bool ext_sampler_filter_minmax{};            ///< Support for VK_EXT_sampler_filter_minmax.
+    bool ext_depth_clip_control{};               ///< Support for VK_EXT_depth_clip_control
     bool ext_depth_range_unrestricted{};         ///< Support for VK_EXT_depth_range_unrestricted.
     bool ext_shader_viewport_index_layer{}; ///< Support for VK_EXT_shader_viewport_index_layer.
     bool ext_tooling_info{};                ///< Support for VK_EXT_tooling_info.
-- 
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