6 files changed, 190 insertions, 0 deletions
diff --git a/hk21/vulkan/BUILD.bazel b/hk21/vulkan/BUILD.bazel
new file mode 100644
index 0000000..25cc0d6
--- /dev/null
+++ b/hk21/vulkan/BUILD.bazel
@@ -0,0 +1,16 @@
+# Copyright 2025 Steven Le Rouzic
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+cc_library(
+    name = "vulkan",
+    hdrs = [
+        "vulkan.hpp",
+    ],
+    deps = [
+        "//vendor/vulkan",
+        "@asl//asl/base",
+    ],
+    visibility = ["//:__subpackages__"],
+    applicable_licenses = ["//:license"],
+)
diff --git a/hk21/vulkan/loader/BUILD.bazel b/hk21/vulkan/loader/BUILD.bazel
new file mode 100644
index 0000000..32e8f03
--- /dev/null
+++ b/hk21/vulkan/loader/BUILD.bazel
@@ -0,0 +1,21 @@
+# Copyright 2025 Steven Le Rouzic
+#
+# SPDX-License-Identifier: BSD-3-Clause
+
+cc_library(
+    name = "loader",
+    hdrs = [
+        "loader.hpp",
+    ],
+    srcs = [
+        "loader.cpp",
+        "fns.hpp",
+    ],
+    deps = [
+        "//hk21/vulkan",
+        "@asl//asl/base",
+        "@asl//asl/types:status",
+    ],
+    visibility = ["//:__subpackages__"],
+    applicable_licenses = ["//:license"],
+)
diff --git a/hk21/vulkan/loader/fns.hpp b/hk21/vulkan/loader/fns.hpp
new file mode 100644
index 0000000..377b103
--- /dev/null
+++ b/hk21/vulkan/loader/fns.hpp
@@ -0,0 +1,47 @@
+// Copyright 2025 Steven Le Rouzic
+//
+// SPDX-License-Identifier: BSD-3-Clause
+
+#define VULKAN_GLOBAL_FNS \
+    FN(vkEnumerateInstanceVersion) \
+    FN(vkCreateInstance)
+    
+#define VULKAN_INSTANCE_FNS \
+    FN(vkDestroyInstance) \
+    FN(vkDestroySurfaceKHR) \
+    FN(vkEnumeratePhysicalDevices) \
+    FN(vkGetPhysicalDeviceProperties) \
+    FN(vkGetPhysicalDeviceQueueFamilyProperties) \
+    FN(vkCreateDevice) \
+    FN(vkGetDeviceProcAddr) \
+    FN(vkGetPhysicalDeviceSurfaceCapabilitiesKHR) \
+    FN(vkGetPhysicalDeviceSurfaceFormatsKHR) \
+    FN(vkGetPhysicalDeviceSurfacePresentModesKHR) \
+    FN(vkGetPhysicalDeviceFeatures2)
+
+#define VULKAN_DEVICE_FNS \
+    FN(vkDestroyDevice) \
+    FN(vkGetDeviceQueue) \
+    FN(vkCreateSwapchainKHR) \
+    FN(vkDestroySwapchainKHR) \
+    FN(vkGetSwapchainImagesKHR) \
+    FN(vkAcquireNextImageKHR) \
+    FN(vkQueuePresentKHR) \
+    FN(vkCreateCommandPool) \
+    FN(vkDestroyCommandPool) \
+    FN(vkResetCommandPool) \
+    FN(vkDeviceWaitIdle) \
+    FN(vkAllocateCommandBuffers) \
+    FN(vkResetCommandBuffer) \
+    FN(vkFreeCommandBuffers) \
+    FN(vkBeginCommandBuffer) \
+    FN(vkEndCommandBuffer) \
+    FN(vkQueueSubmit2) \
+    FN(vkCreateSemaphore) \
+    FN(vkDestroySemaphore) \
+    FN(vkCmdPipelineBarrier2) \
+    FN(vkCmdClearColorImage) \
+    FN(vkCreateFence) \
+    FN(vkDestroyFence) \
+    FN(vkGetFenceStatus)
+
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();
+}
+
diff --git a/hk21/vulkan/loader/loader.hpp b/hk21/vulkan/loader/loader.hpp
new file mode 100644
index 0000000..e1147f4
--- /dev/null
+++ b/hk21/vulkan/loader/loader.hpp
@@ -0,0 +1,27 @@
+// Copyright 2025 Steven Le Rouzic
+//
+// SPDX-License-Identifier: BSD-3-Clause
+
+#pragma once
+
+#include <asl/base/integers.hpp>
+#include <asl/types/status.hpp>
+
+#include "hk21/vulkan/vulkan.hpp"
+#include "hk21/vulkan/loader/fns.hpp"
+
+#define FN(NAME) extern PFN_##NAME NAME;
+VULKAN_GLOBAL_FNS
+VULKAN_INSTANCE_FNS
+VULKAN_DEVICE_FNS
+#undef FN
+
+namespace vulkan_loader
+{
+
+asl::status load_global(PFN_vkGetInstanceProcAddr load_fn);
+asl::status load_instance(PFN_vkGetInstanceProcAddr load_fn, VkInstance instance);
+asl::status load_device(VkDevice device);
+
+} // namespace vulkan_loader
+
diff --git a/hk21/vulkan/vulkan.hpp b/hk21/vulkan/vulkan.hpp
new file mode 100644
index 0000000..0e3242b
--- /dev/null
+++ b/hk21/vulkan/vulkan.hpp
@@ -0,0 +1,12 @@
+// Copyright 2025 Steven Le Rouzic
+//
+// SPDX-License-Identifier: BSD-3-Clause
+
+#pragma once
+
+#include <asl/base/integers.hpp>
+
+#define VK_NO_STDDEF_H
+#define VK_NO_STDINT_H
+#define VK_NO_PROTOTYPES
+#include <vulkan.h>