From 921d1811ece439086aa238a6356a54d00f179e27 Mon Sep 17 00:00:00 2001
From: Steven Le Rouzic <steven.lerouzic@gmail.com>
Date: Tue, 8 Apr 2025 23:18:47 +0200
Subject: Move the Vulkan loader

---
 hk21/vulkan/loader/loader.cpp | 67 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 hk21/vulkan/loader/loader.cpp

(limited to 'hk21/vulkan/loader/loader.cpp')

diff --git a/hk21/vulkan/loader/loader.cpp b/hk21/vulkan/loader/loader.cpp
new file mode 100644
index 0000000..e5e73d0
--- /dev/null
+++ b/hk21/vulkan/loader/loader.cpp
@@ -0,0 +1,67 @@
+// Copyright 2025 Steven Le Rouzic
+//
+// SPDX-License-Identifier: BSD-3-Clause
+
+#include "hk21/vulkan/loader/loader.hpp"
+
+#define FN(NAME) PFN_##NAME NAME;
+VULKAN_GLOBAL_FNS
+VULKAN_INSTANCE_FNS
+VULKAN_DEVICE_FNS
+#undef FN
+
+asl::status vulkan_loader::load_global(PFN_vkGetInstanceProcAddr load_fn)
+{
+    (void)load_fn;
+    
+    bool has_errors = false;
+    
+#define FN(NAME) \
+    NAME = asl::bit_cast<PFN_##NAME>(load_fn(VK_NULL_HANDLE, #NAME)); \
+    if (NAME == nullptr) \
+    { \
+        ASL_ASSERT(NAME != nullptr); \
+        has_errors = true; \
+    }
+VULKAN_GLOBAL_FNS
+#undef FN
+
+    return has_errors ? asl::runtime_error("Couldn't load Vulkan global functions") : asl::ok();
+}
+
+asl::status vulkan_loader::load_instance(PFN_vkGetInstanceProcAddr load_fn, VkInstance instance)
+{
+    (void)load_fn;
+    
+    bool has_errors = false;
+    
+#define FN(NAME) \
+    NAME = asl::bit_cast<PFN_##NAME>(load_fn(instance, #NAME)); \
+    if (NAME == nullptr) \
+    { \
+        ASL_ASSERT(NAME != nullptr); \
+        has_errors = true; \
+    }
+VULKAN_INSTANCE_FNS
+#undef FN
+
+    return has_errors ? asl::runtime_error("Couldn't load Vulkan instance functions") : asl::ok();
+}
+
+asl::status vulkan_loader::load_device(VkDevice device)
+{
+    bool has_errors = false;
+    
+#define FN(NAME) \
+    NAME = asl::bit_cast<PFN_##NAME>(vkGetDeviceProcAddr(device, #NAME)); \
+    if (NAME == nullptr) \
+    { \
+        ASL_ASSERT(NAME != nullptr); \
+        has_errors = true; \
+    }
+VULKAN_DEVICE_FNS
+#undef FN
+
+    return has_errors ? asl::runtime_error("Couldn't load Vulkan device functions") : asl::ok();
+}
+
-- 
cgit