From 12dc082bd4163a9cdad68311212fba86cfe3369c Mon Sep 17 00:00:00 2001
From: CamilleLaVey <camillelavey99@gmail.com>
Date: Thu, 4 Dec 2025 02:11:50 -0400
Subject: [PATCH] [vk] Removed unused extensions

---
 src/video_core/vulkan_common/vulkan.h          |  3 ---
 src/video_core/vulkan_common/vulkan_device.cpp |  3 ---
 src/video_core/vulkan_common/vulkan_device.h   | 12 ------------
 3 files changed, 18 deletions(-)

diff --git a/src/video_core/vulkan_common/vulkan.h b/src/video_core/vulkan_common/vulkan.h
index 5c75ea1db1..2609e8dc0f 100644
--- a/src/video_core/vulkan_common/vulkan.h
+++ b/src/video_core/vulkan_common/vulkan.h
@@ -29,9 +29,6 @@
 #ifndef VK_KHR_MAINTENANCE_8_EXTENSION_NAME
 #define VK_KHR_MAINTENANCE_8_EXTENSION_NAME "VK_KHR_maintenance8"
 #endif
-#ifndef VK_KHR_MAINTENANCE_9_EXTENSION_NAME
-#define VK_KHR_MAINTENANCE_9_EXTENSION_NAME "VK_KHR_maintenance9"
-#endif
 
 // Sanitize macros
 #undef CreateEvent
diff --git a/src/video_core/vulkan_common/vulkan_device.cpp b/src/video_core/vulkan_common/vulkan_device.cpp
index b900305520..a86bb270ea 100644
--- a/src/video_core/vulkan_common/vulkan_device.cpp
+++ b/src/video_core/vulkan_common/vulkan_device.cpp
@@ -1492,9 +1492,6 @@ void Device::RemoveUnsuitableExtensions() {
     extensions.maintenance8 = loaded_extensions.contains(VK_KHR_MAINTENANCE_8_EXTENSION_NAME);
     RemoveExtensionIfUnsuitable(extensions.maintenance8, VK_KHR_MAINTENANCE_8_EXTENSION_NAME);
 
-    // VK_KHR_maintenance9 (proposed for Vulkan 1.4, no features)
-    extensions.maintenance9 = loaded_extensions.contains(VK_KHR_MAINTENANCE_9_EXTENSION_NAME);
-    RemoveExtensionIfUnsuitable(extensions.maintenance9, VK_KHR_MAINTENANCE_9_EXTENSION_NAME);
 }
 
 bool Device::SupportsSubgroupStage(VkShaderStageFlags stage_mask) const {
diff --git a/src/video_core/vulkan_common/vulkan_device.h b/src/video_core/vulkan_common/vulkan_device.h
index c2109f66c0..e4f30276f9 100644
--- a/src/video_core/vulkan_common/vulkan_device.h
+++ b/src/video_core/vulkan_common/vulkan_device.h
@@ -99,7 +99,6 @@ VK_DEFINE_HANDLE(VmaAllocator)
     EXTENSION(KHR, MAINTENANCE_3, maintenance3)                                                    \
     EXTENSION(KHR, MAINTENANCE_7, maintenance7)                                                    \
     EXTENSION(KHR, MAINTENANCE_8, maintenance8)                                                    \
-    EXTENSION(KHR, MAINTENANCE_9, maintenance9)                                                    \
     EXTENSION(NV, DEVICE_DIAGNOSTICS_CONFIG, device_diagnostics_config)                            \
     EXTENSION(NV, GEOMETRY_SHADER_PASSTHROUGH, geometry_shader_passthrough)                        \
     EXTENSION(NV, VIEWPORT_ARRAY2, viewport_array2)                                                \
@@ -927,17 +926,6 @@ public:
         return extensions.maintenance8;
     }
 
-    /// Returns true if the device supports UINT8 index buffer conversion via compute shader.
-    bool SupportsUint8Indices() const {
-        return features.bit8_storage.storageBuffer8BitAccess &&
-               features.bit16_storage.storageBuffer16BitAccess;
-    }
-    
-    /// Returns true if the device supports VK_KHR_maintenance9.
-    bool IsKhrMaintenance9Supported() const {
-        return extensions.maintenance9;
-    }
-
     [[nodiscard]] static constexpr bool CheckBrokenCompute(VkDriverId driver_id,
                                                            u32 driver_version) {
         if (driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS) {