EDIT: folder structure refactoring (src/core)

src/core/util/debug.cpp

@@ -0,0 +1,53 @@
+#include <core/util/debug.h>
+
+#include <cstring>
+
+namespace vkdebug {
+
+static inline PFN_vkCmdBeginDebugUtilsLabelEXT get_begin_fn(VkDevice device)
+{
+    static PFN_vkCmdBeginDebugUtilsLabelEXT fn = nullptr;
+    static VkDevice cached = VK_NULL_HANDLE;
+    if (device != cached)
+    {
+        cached = device;
+        fn = reinterpret_cast<PFN_vkCmdBeginDebugUtilsLabelEXT>(
+            vkGetDeviceProcAddr(device, "vkCmdBeginDebugUtilsLabelEXT"));
+    }
+    return fn;
+}
+
+static inline PFN_vkCmdEndDebugUtilsLabelEXT get_end_fn(VkDevice device)
+{
+    static PFN_vkCmdEndDebugUtilsLabelEXT fn = nullptr;
+    static VkDevice cached = VK_NULL_HANDLE;
+    if (device != cached)
+    {
+        cached = device;
+        fn = reinterpret_cast<PFN_vkCmdEndDebugUtilsLabelEXT>(
+            vkGetDeviceProcAddr(device, "vkCmdEndDebugUtilsLabelEXT"));
+    }
+    return fn;
+}
+
+void cmd_begin_label(VkDevice device, VkCommandBuffer cmd, const char* name,
+                     float r, float g, float b, float a)
+{
+    auto fn = get_begin_fn(device);
+    if (!fn) return;
+    VkDebugUtilsLabelEXT label{};
+    label.sType = VK_STRUCTURE_TYPE_DEBUG_UTILS_LABEL_EXT;
+    label.pLabelName = name;
+    label.color[0] = r; label.color[1] = g; label.color[2] = b; label.color[3] = a;
+    fn(cmd, &label);
+}
+
+void cmd_end_label(VkDevice device, VkCommandBuffer cmd)
+{
+    auto fn = get_end_fn(device);
+    if (!fn) return;
+    fn(cmd);
+}
+
+} // namespace vkdebug
+