From 7f3439714858d4c70f60db71543df15db5708d92 Mon Sep 17 00:00:00 2001
From: Nicolas James <Eele1Ephe7uZahRie@tutanota.com>
Date: Fri, 20 Feb 2026 20:57:37 +1100
Subject: Don't inject timestamps into unsupported queues

---
 src/physical_device_context.cc | 41 ++++++++++++++++++++++++++++++++++-------
 1 file changed, 34 insertions(+), 7 deletions(-)

(limited to 'src/physical_device_context.cc')

diff --git a/src/physical_device_context.cc b/src/physical_device_context.cc
index d265c9d..2d1afc3 100644
--- a/src/physical_device_context.cc
+++ b/src/physical_device_context.cc
@@ -1,17 +1,44 @@
 #include "physical_device_context.hh"
+#include <vulkan/vulkan_core.h>
 
 namespace low_latency {
-    
-PhysicalDeviceContext::PhysicalDeviceContext(
-    InstanceContext& instance_context, const VkPhysicalDevice& physical_device)
-    : instance(instance_context), physical_device(physical_device) {
+
+static std::unique_ptr<VkPhysicalDeviceProperties>
+make_pd_props(const InstanceContext& instance_context,
+              const VkPhysicalDevice& physical_device) {
+    const auto& vtable = instance_context.vtable;
 
     auto props = VkPhysicalDeviceProperties{};
-    instance.vtable.GetPhysicalDeviceProperties(this->physical_device, &props);
-    this->properties =
-        std::make_unique<VkPhysicalDeviceProperties>(std::move(props));
+    vtable.GetPhysicalDeviceProperties(physical_device, &props);
+    return std::make_unique<VkPhysicalDeviceProperties>(std::move(props));
+}
+
+static std::unique_ptr<PhysicalDeviceContext::queue_properties_t>
+make_qf_props(const InstanceContext& instance_context,
+              const VkPhysicalDevice& physical_device) {
+
+    const auto& vtable = instance_context.vtable;
+
+    auto count = std::uint32_t{};
+    vtable.GetPhysicalDeviceQueueFamilyProperties2(physical_device, &count,
+                                                   nullptr);
+
+    auto result = std::vector<VkQueueFamilyProperties2>(
+        count, VkQueueFamilyProperties2{
+                   .sType = VK_STRUCTURE_TYPE_QUEUE_FAMILY_PROPERTIES_2});
+    vtable.GetPhysicalDeviceQueueFamilyProperties2(physical_device, &count,
+                                                   std::data(result));
+
+    using qp_t = PhysicalDeviceContext::queue_properties_t;
+    return std::make_unique<qp_t>(std::move(result));
 }
 
+PhysicalDeviceContext::PhysicalDeviceContext(
+    InstanceContext& instance_context, const VkPhysicalDevice& physical_device)
+    : instance(instance_context), physical_device(physical_device),
+      properties(make_pd_props(instance, physical_device)),
+      queue_properties(make_qf_props(instance, physical_device)) {}
+
 PhysicalDeviceContext::~PhysicalDeviceContext() {}
 
 } // namespace low_latency
\ No newline at end of file
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