diff --git a/vulkan/libvulkan/loader.h b/vulkan/libvulkan/loader.h
new file mode 100644
index 0000000..1f6a1d4
--- /dev/null
+++ b/vulkan/libvulkan/loader.h
@@ -0,0 +1,211 @@
+#ifndef LIBVULKAN_LOADER_H
+#define LIBVULKAN_LOADER_H 1
+
+#define VK_PROTOTYPES
+#include <vulkan/vulkan.h>
+
+namespace vulkan {
+
+struct InstanceVtbl {
+    // clang-format off
+    VkInstance instance;
+
+    PFN_vkCreateInstance CreateInstance;
+    PFN_vkDestroyInstance DestroyInstance;
+    PFN_vkGetInstanceProcAddr GetInstanceProcAddr;
+    PFN_vkEnumeratePhysicalDevices EnumeratePhysicalDevices;
+
+    PFN_vkGetPhysicalDeviceFeatures GetPhysicalDeviceFeatures;
+    PFN_vkGetPhysicalDeviceFormatProperties GetPhysicalDeviceFormatProperties;
+    PFN_vkGetPhysicalDeviceImageFormatProperties GetPhysicalDeviceImageFormatProperties;
+    PFN_vkGetPhysicalDeviceLimits GetPhysicalDeviceLimits;
+    PFN_vkGetPhysicalDeviceProperties GetPhysicalDeviceProperties;
+    PFN_vkGetPhysicalDeviceQueueCount GetPhysicalDeviceQueueCount;
+    PFN_vkGetPhysicalDeviceQueueProperties GetPhysicalDeviceQueueProperties;
+    PFN_vkGetPhysicalDeviceMemoryProperties GetPhysicalDeviceMemoryProperties;
+    PFN_vkCreateDevice CreateDevice;
+    PFN_vkGetPhysicalDeviceExtensionProperties GetPhysicalDeviceExtensionProperties;
+    PFN_vkGetPhysicalDeviceLayerProperties GetPhysicalDeviceLayerProperties;
+    PFN_vkGetPhysicalDeviceSparseImageFormatProperties GetPhysicalDeviceSparseImageFormatProperties;
+    // clang-format on
+};
+
+struct DeviceVtbl {
+    void* device;
+
+    PFN_vkGetDeviceProcAddr GetDeviceProcAddr;
+    PFN_vkDestroyDevice DestroyDevice;
+    PFN_vkGetDeviceQueue GetDeviceQueue;
+    PFN_vkDeviceWaitIdle DeviceWaitIdle;
+    PFN_vkAllocMemory AllocMemory;
+    PFN_vkFreeMemory FreeMemory;
+    PFN_vkMapMemory MapMemory;
+    PFN_vkUnmapMemory UnmapMemory;
+    PFN_vkFlushMappedMemoryRanges FlushMappedMemoryRanges;
+    PFN_vkInvalidateMappedMemoryRanges InvalidateMappedMemoryRanges;
+    PFN_vkGetDeviceMemoryCommitment GetDeviceMemoryCommitment;
+    PFN_vkBindBufferMemory BindBufferMemory;
+    PFN_vkBindImageMemory BindImageMemory;
+    PFN_vkGetBufferMemoryRequirements GetBufferMemoryRequirements;
+    PFN_vkGetImageMemoryRequirements GetImageMemoryRequirements;
+    PFN_vkGetImageSparseMemoryRequirements GetImageSparseMemoryRequirements;
+    PFN_vkCreateFence CreateFence;
+    PFN_vkDestroyFence DestroyFence;
+    PFN_vkResetFences ResetFences;
+    PFN_vkGetFenceStatus GetFenceStatus;
+    PFN_vkWaitForFences WaitForFences;
+    PFN_vkCreateSemaphore CreateSemaphore;
+    PFN_vkDestroySemaphore DestroySemaphore;
+    PFN_vkCreateEvent CreateEvent;
+    PFN_vkDestroyEvent DestroyEvent;
+    PFN_vkGetEventStatus GetEventStatus;
+    PFN_vkSetEvent SetEvent;
+    PFN_vkResetEvent ResetEvent;
+    PFN_vkCreateQueryPool CreateQueryPool;
+    PFN_vkDestroyQueryPool DestroyQueryPool;
+    PFN_vkGetQueryPoolResults GetQueryPoolResults;
+    PFN_vkCreateBuffer CreateBuffer;
+    PFN_vkDestroyBuffer DestroyBuffer;
+    PFN_vkCreateBufferView CreateBufferView;
+    PFN_vkDestroyBufferView DestroyBufferView;
+    PFN_vkCreateImage CreateImage;
+    PFN_vkDestroyImage DestroyImage;
+    PFN_vkGetImageSubresourceLayout GetImageSubresourceLayout;
+    PFN_vkCreateImageView CreateImageView;
+    PFN_vkDestroyImageView DestroyImageView;
+    PFN_vkCreateAttachmentView CreateAttachmentView;
+    PFN_vkDestroyAttachmentView DestroyAttachmentView;
+    PFN_vkCreateShaderModule CreateShaderModule;
+    PFN_vkDestroyShaderModule DestroyShaderModule;
+    PFN_vkCreateShader CreateShader;
+    PFN_vkDestroyShader DestroyShader;
+    PFN_vkCreatePipelineCache CreatePipelineCache;
+    PFN_vkDestroyPipelineCache DestroyPipelineCache;
+    PFN_vkGetPipelineCacheSize GetPipelineCacheSize;
+    PFN_vkGetPipelineCacheData GetPipelineCacheData;
+    PFN_vkMergePipelineCaches MergePipelineCaches;
+    PFN_vkCreateGraphicsPipelines CreateGraphicsPipelines;
+    PFN_vkCreateComputePipelines CreateComputePipelines;
+    PFN_vkDestroyPipeline DestroyPipeline;
+    PFN_vkCreatePipelineLayout CreatePipelineLayout;
+    PFN_vkDestroyPipelineLayout DestroyPipelineLayout;
+    PFN_vkCreateSampler CreateSampler;
+    PFN_vkDestroySampler DestroySampler;
+    PFN_vkCreateDescriptorSetLayout CreateDescriptorSetLayout;
+    PFN_vkDestroyDescriptorSetLayout DestroyDescriptorSetLayout;
+    PFN_vkCreateDescriptorPool CreateDescriptorPool;
+    PFN_vkDestroyDescriptorPool DestroyDescriptorPool;
+    PFN_vkResetDescriptorPool ResetDescriptorPool;
+    PFN_vkAllocDescriptorSets AllocDescriptorSets;
+    PFN_vkFreeDescriptorSets FreeDescriptorSets;
+    PFN_vkUpdateDescriptorSets UpdateDescriptorSets;
+    PFN_vkCreateDynamicViewportState CreateDynamicViewportState;
+    PFN_vkDestroyDynamicViewportState DestroyDynamicViewportState;
+    PFN_vkCreateDynamicRasterState CreateDynamicRasterState;
+    PFN_vkDestroyDynamicRasterState DestroyDynamicRasterState;
+    PFN_vkCreateDynamicColorBlendState CreateDynamicColorBlendState;
+    PFN_vkDestroyDynamicColorBlendState DestroyDynamicColorBlendState;
+    PFN_vkCreateDynamicDepthStencilState CreateDynamicDepthStencilState;
+    PFN_vkDestroyDynamicDepthStencilState DestroyDynamicDepthStencilState;
+    PFN_vkCreateFramebuffer CreateFramebuffer;
+    PFN_vkDestroyFramebuffer DestroyFramebuffer;
+    PFN_vkCreateRenderPass CreateRenderPass;
+    PFN_vkDestroyRenderPass DestroyRenderPass;
+    PFN_vkGetRenderAreaGranularity GetRenderAreaGranularity;
+    PFN_vkCreateCommandPool CreateCommandPool;
+    PFN_vkDestroyCommandPool DestroyCommandPool;
+    PFN_vkResetCommandPool ResetCommandPool;
+    PFN_vkCreateCommandBuffer CreateCommandBuffer;
+    PFN_vkDestroyCommandBuffer DestroyCommandBuffer;
+
+    PFN_vkQueueSubmit QueueSubmit;
+    PFN_vkQueueWaitIdle QueueWaitIdle;
+    PFN_vkQueueBindSparseBufferMemory QueueBindSparseBufferMemory;
+    PFN_vkQueueBindSparseImageOpaqueMemory QueueBindSparseImageOpaqueMemory;
+    PFN_vkQueueBindSparseImageMemory QueueBindSparseImageMemory;
+    PFN_vkQueueSignalSemaphore QueueSignalSemaphore;
+    PFN_vkQueueWaitSemaphore QueueWaitSemaphore;
+
+    PFN_vkBeginCommandBuffer BeginCommandBuffer;
+    PFN_vkEndCommandBuffer EndCommandBuffer;
+    PFN_vkResetCommandBuffer ResetCommandBuffer;
+    PFN_vkCmdBindPipeline CmdBindPipeline;
+    PFN_vkCmdBindDynamicViewportState CmdBindDynamicViewportState;
+    PFN_vkCmdBindDynamicRasterState CmdBindDynamicRasterState;
+    PFN_vkCmdBindDynamicColorBlendState CmdBindDynamicColorBlendState;
+    PFN_vkCmdBindDynamicDepthStencilState CmdBindDynamicDepthStencilState;
+    PFN_vkCmdBindDescriptorSets CmdBindDescriptorSets;
+    PFN_vkCmdBindIndexBuffer CmdBindIndexBuffer;
+    PFN_vkCmdBindVertexBuffers CmdBindVertexBuffers;
+    PFN_vkCmdDraw CmdDraw;
+    PFN_vkCmdDrawIndexed CmdDrawIndexed;
+    PFN_vkCmdDrawIndirect CmdDrawIndirect;
+    PFN_vkCmdDrawIndexedIndirect CmdDrawIndexedIndirect;
+    PFN_vkCmdDispatch CmdDispatch;
+    PFN_vkCmdDispatchIndirect CmdDispatchIndirect;
+    PFN_vkCmdCopyBuffer CmdCopyBuffer;
+    PFN_vkCmdCopyImage CmdCopyImage;
+    PFN_vkCmdBlitImage CmdBlitImage;
+    PFN_vkCmdCopyBufferToImage CmdCopyBufferToImage;
+    PFN_vkCmdCopyImageToBuffer CmdCopyImageToBuffer;
+    PFN_vkCmdUpdateBuffer CmdUpdateBuffer;
+    PFN_vkCmdFillBuffer CmdFillBuffer;
+    PFN_vkCmdClearColorImage CmdClearColorImage;
+    PFN_vkCmdClearDepthStencilImage CmdClearDepthStencilImage;
+    PFN_vkCmdClearColorAttachment CmdClearColorAttachment;
+    PFN_vkCmdClearDepthStencilAttachment CmdClearDepthStencilAttachment;
+    PFN_vkCmdResolveImage CmdResolveImage;
+    PFN_vkCmdSetEvent CmdSetEvent;
+    PFN_vkCmdResetEvent CmdResetEvent;
+    PFN_vkCmdWaitEvents CmdWaitEvents;
+    PFN_vkCmdPipelineBarrier CmdPipelineBarrier;
+    PFN_vkCmdBeginQuery CmdBeginQuery;
+    PFN_vkCmdEndQuery CmdEndQuery;
+    PFN_vkCmdResetQueryPool CmdResetQueryPool;
+    PFN_vkCmdWriteTimestamp CmdWriteTimestamp;
+    PFN_vkCmdCopyQueryPoolResults CmdCopyQueryPoolResults;
+    PFN_vkCmdPushConstants CmdPushConstants;
+    PFN_vkCmdBeginRenderPass CmdBeginRenderPass;
+    PFN_vkCmdNextSubpass CmdNextSubpass;
+    PFN_vkCmdEndRenderPass CmdEndRenderPass;
+    PFN_vkCmdExecuteCommands CmdExecuteCommands;
+};
+
+// -----------------------------------------------------------------------------
+// loader.cpp
+
+VkResult GetGlobalExtensionProperties(const char* layer_name,
+                                      uint32_t* count,
+                                      VkExtensionProperties* properties);
+VkResult GetGlobalLayerProperties(uint32_t* count,
+                                  VkLayerProperties* properties);
+VkResult CreateInstance(const VkInstanceCreateInfo* create_info,
+                        VkInstance* instance);
+PFN_vkVoidFunction GetInstanceProcAddr(VkInstance instance, const char* name);
+PFN_vkVoidFunction GetDeviceProcAddr(VkDevice drv_device, const char* name);
+VkResult GetDeviceQueue(VkDevice drv_device,
+                        uint32_t family,
+                        uint32_t index,
+                        VkQueue* out_queue);
+VkResult DestroyDevice(VkDevice drv_device);
+
+// -----------------------------------------------------------------------------
+// get_proc_addr.cpp
+
+PFN_vkVoidFunction GetGlobalInstanceProcAddr(const char* name);
+PFN_vkVoidFunction GetGlobalDeviceProcAddr(const char* name);
+PFN_vkVoidFunction GetSpecificInstanceProcAddr(const InstanceVtbl* vtbl,
+                                               const char* name);
+PFN_vkVoidFunction GetSpecificDeviceProcAddr(const DeviceVtbl* vtbl,
+                                             const char* name);
+
+bool LoadInstanceVtbl(VkInstance instance,
+                      PFN_vkGetInstanceProcAddr get_proc_addr,
+                      InstanceVtbl& vtbl);
+bool LoadDeviceVtbl(VkDevice device,
+                    PFN_vkGetDeviceProcAddr get_proc_addr,
+                    DeviceVtbl& vtbl);
+
+}  // namespace vulkan
+
+#endif  // LIBVULKAN_LOADER_H