vulkan: initial loader and null driver

Change-Id: Id5ebb5f01e61e9b114990f49c64c88fbbb7b730e
(cherry picked from commit 4df205cdfc61e66de774ba50be9ef59a08cf88bb)
diff --git a/vulkan/nulldrv/Android.mk b/vulkan/nulldrv/Android.mk
new file mode 100644
index 0000000..a267a79
--- /dev/null
+++ b/vulkan/nulldrv/Android.mk
@@ -0,0 +1,26 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_CLANG := true
+LOCAL_CFLAGS := -std=c99 -fvisibility=hidden -fstrict-aliasing
+LOCAL_CFLAGS += -DLOG_TAG=\"vk_nulldrv\"
+LOCAL_CFLAGS += -Weverything -Werror -Wno-padded -Wno-undef
+LOCAL_CPPFLAGS := -std=c++1y \
+	-Wno-c++98-compat-pedantic \
+	-Wno-c99-extensions
+
+LOCAL_C_INCLUDES := \
+	frameworks/native/vulkan/include
+
+LOCAL_SRC_FILES := \
+	null_driver.cpp \
+	null_driver_gen.cpp
+
+LOCAL_SHARED_LIBRARIES := liblog
+
+LOCAL_MODULE := vulkan.$(TARGET_BOARD_PLATFORM)
+LOCAL_PROPRIETARY_MODULE := true
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_MODULE_TAGS := optional
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/vulkan/nulldrv/null_driver.cpp b/vulkan/nulldrv/null_driver.cpp
new file mode 100644
index 0000000..a68cdd9
--- /dev/null
+++ b/vulkan/nulldrv/null_driver.cpp
@@ -0,0 +1,734 @@
+#include <hardware/hwvulkan.h>
+
+#include <string.h>
+#include <algorithm>
+
+#include <utils/Errors.h>
+
+#include "null_driver.h"
+
+using namespace null_driver;
+
+struct VkPhysicalDevice_T {
+    hwvulkan_dispatch_t dispatch;
+};
+
+struct VkInstance_T {
+    hwvulkan_dispatch_t dispatch;
+    const VkAllocCallbacks* alloc;
+    VkPhysicalDevice_T physical_device;
+};
+
+struct VkQueue_T {
+    hwvulkan_dispatch_t dispatch;
+};
+
+struct VkCmdBuffer_T {
+    hwvulkan_dispatch_t dispatch;
+};
+
+struct VkDevice_T {
+    hwvulkan_dispatch_t dispatch;
+    VkInstance_T* instance;
+    VkQueue_T queue;
+};
+
+// -----------------------------------------------------------------------------
+// Declare HAL_MODULE_INFO_SYM early so it can be referenced by nulldrv_device
+// later.
+
+namespace {
+int OpenDevice(const hw_module_t* module, const char* id, hw_device_t** device);
+hw_module_methods_t nulldrv_module_methods = {.open = OpenDevice};
+}  // namespace
+
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wmissing-variable-declarations"
+__attribute__((visibility("default"))) hwvulkan_module_t HAL_MODULE_INFO_SYM = {
+    .common =
+        {
+         .tag = HARDWARE_MODULE_TAG,
+         .module_api_version = HWVULKAN_MODULE_API_VERSION_0_1,
+         .hal_api_version = HARDWARE_HAL_API_VERSION,
+         .id = HWVULKAN_HARDWARE_MODULE_ID,
+         .name = "Null Vulkan Driver",
+         .author = "The Android Open Source Project",
+         .methods = &nulldrv_module_methods,
+        },
+};
+#pragma clang diagnostic pop
+
+// -----------------------------------------------------------------------------
+
+namespace {
+
+VkResult CreateInstance(const VkInstanceCreateInfo* create_info,
+                        VkInstance* out_instance) {
+    VkInstance_T* instance =
+        static_cast<VkInstance_T*>(create_info->pAllocCb->pfnAlloc(
+            create_info->pAllocCb->pUserData, sizeof(VkInstance_T),
+            alignof(VkInstance_T), VK_SYSTEM_ALLOC_TYPE_API_OBJECT));
+    if (!instance)
+        return VK_ERROR_OUT_OF_HOST_MEMORY;
+
+    instance->dispatch.magic = HWVULKAN_DISPATCH_MAGIC;
+    instance->alloc = create_info->pAllocCb;
+    instance->physical_device.dispatch.magic = HWVULKAN_DISPATCH_MAGIC;
+
+    *out_instance = instance;
+    return VK_SUCCESS;
+}
+
+int CloseDevice(struct hw_device_t* /*device*/) {
+    // nothing to do - opening a device doesn't allocate any resources
+    return 0;
+}
+
+hwvulkan_device_t nulldrv_device = {
+    .common =
+        {
+         .tag = HARDWARE_DEVICE_TAG,
+         .version = HWVULKAN_DEVICE_API_VERSION_0_1,
+         .module = &HAL_MODULE_INFO_SYM.common,
+         .close = CloseDevice,
+        },
+    .GetGlobalExtensionProperties = GetGlobalExtensionProperties,
+    .CreateInstance = CreateInstance,
+    .GetInstanceProcAddr = GetInstanceProcAddr};
+
+int OpenDevice(const hw_module_t* /*module*/,
+               const char* id,
+               hw_device_t** device) {
+    if (strcmp(id, HWVULKAN_DEVICE_0) == 0) {
+        *device = &nulldrv_device.common;
+        return 0;
+    }
+    return -ENOENT;
+}
+
+VkInstance_T* GetInstanceFromPhysicalDevice(
+    VkPhysicalDevice_T* physical_device) {
+    return reinterpret_cast<VkInstance_T*>(
+        reinterpret_cast<uintptr_t>(physical_device) -
+        offsetof(VkInstance_T, physical_device));
+}
+
+}  // namespace
+
+namespace null_driver {
+
+PFN_vkVoidFunction GetInstanceProcAddr(VkInstance, const char* name) {
+    PFN_vkVoidFunction proc = LookupInstanceProcAddr(name);
+    if (!proc && strcmp(name, "vkGetDeviceProcAddr") == 0)
+        proc = reinterpret_cast<PFN_vkVoidFunction>(GetDeviceProcAddr);
+    return proc;
+}
+
+PFN_vkVoidFunction GetDeviceProcAddr(VkDevice, const char* name) {
+    return LookupDeviceProcAddr(name);
+}
+
+VkResult DestroyInstance(VkInstance instance) {
+    instance->alloc->pfnFree(instance->alloc->pUserData, instance);
+    return VK_SUCCESS;
+}
+
+VkResult EnumeratePhysicalDevices(VkInstance instance,
+                                  uint32_t* physical_device_count,
+                                  VkPhysicalDevice* physical_devices) {
+    if (physical_devices && *physical_device_count >= 1)
+        physical_devices[0] = &instance->physical_device;
+    *physical_device_count = 1;
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceProperties(VkPhysicalDevice,
+                                     VkPhysicalDeviceProperties* properties) {
+    properties->apiVersion = VK_API_VERSION;
+    properties->driverVersion = VK_MAKE_VERSION(0, 0, 1);
+    properties->vendorId = 0xC0DE;
+    properties->deviceId = 0xCAFE;
+    properties->deviceType = VK_PHYSICAL_DEVICE_TYPE_OTHER;
+    strcpy(properties->deviceName, "Android Vulkan Null Driver");
+    memset(properties->pipelineCacheUUID, 0,
+           sizeof(properties->pipelineCacheUUID));
+    return VK_SUCCESS;
+}
+
+VkResult GetGlobalExtensionProperties(const char*,
+                                      uint32_t* count,
+                                      VkExtensionProperties*) {
+    *count = 0;
+    return VK_SUCCESS;
+}
+
+VkResult CreateDevice(VkPhysicalDevice physical_device,
+                      const VkDeviceCreateInfo*,
+                      VkDevice* out_device) {
+    VkInstance_T* instance = GetInstanceFromPhysicalDevice(physical_device);
+    VkDevice_T* device = static_cast<VkDevice_T*>(instance->alloc->pfnAlloc(
+        instance->alloc->pUserData, sizeof(VkDevice_T), alignof(VkDevice_T),
+        VK_SYSTEM_ALLOC_TYPE_API_OBJECT));
+    if (!device)
+        return VK_ERROR_OUT_OF_HOST_MEMORY;
+
+    device->dispatch.magic = HWVULKAN_DISPATCH_MAGIC;
+    device->instance = instance;
+    device->queue.dispatch.magic = HWVULKAN_DISPATCH_MAGIC;
+
+    *out_device = device;
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDevice(VkDevice device) {
+    if (!device)
+        return VK_SUCCESS;
+    const VkAllocCallbacks* alloc = device->instance->alloc;
+    alloc->pfnFree(alloc->pUserData, device);
+    return VK_SUCCESS;
+}
+
+VkResult GetDeviceQueue(VkDevice device, uint32_t, uint32_t, VkQueue* queue) {
+    *queue = &device->queue;
+    return VK_SUCCESS;
+}
+
+// -----------------------------------------------------------------------------
+// No-op entrypoints
+
+// clang-format off
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wunused-parameter"
+
+VkResult GetPhysicalDeviceQueueCount(VkPhysicalDevice physicalDevice, uint32_t* pCount) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceQueueProperties(VkPhysicalDevice physicalDevice, uint32_t count, VkPhysicalDeviceQueueProperties* pQueueProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceMemoryProperties(VkPhysicalDevice physicalDevice, VkPhysicalDeviceMemoryProperties* pMemoryProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceFeatures(VkPhysicalDevice physicalDevice, VkPhysicalDeviceFeatures* pFeatures) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceFormatProperties(VkPhysicalDevice physicalDevice, VkFormat format, VkFormatProperties* pFormatProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceImageFormatProperties(VkPhysicalDevice physicalDevice, VkFormat format, VkImageType type, VkImageTiling tiling, VkImageUsageFlags usage, VkImageFormatProperties* pImageFormatProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceLimits(VkPhysicalDevice physicalDevice, VkPhysicalDeviceLimits* pLimits) {
+    return VK_SUCCESS;
+}
+
+VkResult GetGlobalLayerProperties(uint32_t* pCount, VkLayerProperties* pProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceLayerProperties(VkPhysicalDevice physicalDevice, uint32_t* pCount, VkLayerProperties* pProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceExtensionProperties(VkPhysicalDevice physicalDevice, const char* pLayerName, uint32_t* pCount, VkExtensionProperties* pProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueSubmit(VkQueue queue, uint32_t cmdBufferCount, const VkCmdBuffer* pCmdBuffers, VkFence fence) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueWaitIdle(VkQueue queue) {
+    return VK_SUCCESS;
+}
+
+VkResult DeviceWaitIdle(VkDevice device) {
+    return VK_SUCCESS;
+}
+
+VkResult AllocMemory(VkDevice device, const VkMemoryAllocInfo* pAllocInfo, VkDeviceMemory* pMem) {
+    return VK_SUCCESS;
+}
+
+VkResult FreeMemory(VkDevice device, VkDeviceMemory mem) {
+    return VK_SUCCESS;
+}
+
+VkResult MapMemory(VkDevice device, VkDeviceMemory mem, VkDeviceSize offset, VkDeviceSize size, VkMemoryMapFlags flags, void** ppData) {
+    return VK_SUCCESS;
+}
+
+VkResult UnmapMemory(VkDevice device, VkDeviceMemory mem) {
+    return VK_SUCCESS;
+}
+
+VkResult FlushMappedMemoryRanges(VkDevice device, uint32_t memRangeCount, const VkMappedMemoryRange* pMemRanges) {
+    return VK_SUCCESS;
+}
+
+VkResult InvalidateMappedMemoryRanges(VkDevice device, uint32_t memRangeCount, const VkMappedMemoryRange* pMemRanges) {
+    return VK_SUCCESS;
+}
+
+VkResult GetDeviceMemoryCommitment(VkDevice device, VkDeviceMemory memory, VkDeviceSize* pCommittedMemoryInBytes) {
+    return VK_SUCCESS;
+}
+
+VkResult GetBufferMemoryRequirements(VkDevice device, VkBuffer buffer, VkMemoryRequirements* pMemoryRequirements) {
+    return VK_SUCCESS;
+}
+
+VkResult BindBufferMemory(VkDevice device, VkBuffer buffer, VkDeviceMemory mem, VkDeviceSize memOffset) {
+    return VK_SUCCESS;
+}
+
+VkResult GetImageMemoryRequirements(VkDevice device, VkImage image, VkMemoryRequirements* pMemoryRequirements) {
+    return VK_SUCCESS;
+}
+
+VkResult BindImageMemory(VkDevice device, VkImage image, VkDeviceMemory mem, VkDeviceSize memOffset) {
+    return VK_SUCCESS;
+}
+
+VkResult GetImageSparseMemoryRequirements(VkDevice device, VkImage image, uint32_t* pNumRequirements, VkSparseImageMemoryRequirements* pSparseMemoryRequirements) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPhysicalDeviceSparseImageFormatProperties(VkPhysicalDevice physicalDevice, VkFormat format, VkImageType type, uint32_t samples, VkImageUsageFlags usage, VkImageTiling tiling, uint32_t* pNumProperties, VkSparseImageFormatProperties* pProperties) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueBindSparseBufferMemory(VkQueue queue, VkBuffer buffer, uint32_t numBindings, const VkSparseMemoryBindInfo* pBindInfo) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueBindSparseImageOpaqueMemory(VkQueue queue, VkImage image, uint32_t numBindings, const VkSparseMemoryBindInfo* pBindInfo) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueBindSparseImageMemory(VkQueue queue, VkImage image, uint32_t numBindings, const VkSparseImageMemoryBindInfo* pBindInfo) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateFence(VkDevice device, const VkFenceCreateInfo* pCreateInfo, VkFence* pFence) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyFence(VkDevice device, VkFence fence) {
+    return VK_SUCCESS;
+}
+
+VkResult ResetFences(VkDevice device, uint32_t fenceCount, const VkFence* pFences) {
+    return VK_SUCCESS;
+}
+
+VkResult GetFenceStatus(VkDevice device, VkFence fence) {
+    return VK_SUCCESS;
+}
+
+VkResult WaitForFences(VkDevice device, uint32_t fenceCount, const VkFence* pFences, VkBool32 waitAll, uint64_t timeout) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateSemaphore(VkDevice device, const VkSemaphoreCreateInfo* pCreateInfo, VkSemaphore* pSemaphore) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroySemaphore(VkDevice device, VkSemaphore semaphore) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueSignalSemaphore(VkQueue queue, VkSemaphore semaphore) {
+    return VK_SUCCESS;
+}
+
+VkResult QueueWaitSemaphore(VkQueue queue, VkSemaphore semaphore) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateEvent(VkDevice device, const VkEventCreateInfo* pCreateInfo, VkEvent* pEvent) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyEvent(VkDevice device, VkEvent event) {
+    return VK_SUCCESS;
+}
+
+VkResult GetEventStatus(VkDevice device, VkEvent event) {
+    return VK_SUCCESS;
+}
+
+VkResult SetEvent(VkDevice device, VkEvent event) {
+    return VK_SUCCESS;
+}
+
+VkResult ResetEvent(VkDevice device, VkEvent event) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateQueryPool(VkDevice device, const VkQueryPoolCreateInfo* pCreateInfo, VkQueryPool* pQueryPool) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyQueryPool(VkDevice device, VkQueryPool queryPool) {
+    return VK_SUCCESS;
+}
+
+VkResult GetQueryPoolResults(VkDevice device, VkQueryPool queryPool, uint32_t startQuery, uint32_t queryCount, size_t* pDataSize, void* pData, VkQueryResultFlags flags) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateBuffer(VkDevice device, const VkBufferCreateInfo* pCreateInfo, VkBuffer* pBuffer) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyBuffer(VkDevice device, VkBuffer buffer) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateBufferView(VkDevice device, const VkBufferViewCreateInfo* pCreateInfo, VkBufferView* pView) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyBufferView(VkDevice device, VkBufferView bufferView) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateImage(VkDevice device, const VkImageCreateInfo* pCreateInfo, VkImage* pImage) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyImage(VkDevice device, VkImage image) {
+    return VK_SUCCESS;
+}
+
+VkResult GetImageSubresourceLayout(VkDevice device, VkImage image, const VkImageSubresource* pSubresource, VkSubresourceLayout* pLayout) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateImageView(VkDevice device, const VkImageViewCreateInfo* pCreateInfo, VkImageView* pView) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyImageView(VkDevice device, VkImageView imageView) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateAttachmentView(VkDevice device, const VkAttachmentViewCreateInfo* pCreateInfo, VkAttachmentView* pView) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyAttachmentView(VkDevice device, VkAttachmentView attachmentView) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateShaderModule(VkDevice device, const VkShaderModuleCreateInfo* pCreateInfo, VkShaderModule* pShaderModule) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyShaderModule(VkDevice device, VkShaderModule shaderModule) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateShader(VkDevice device, const VkShaderCreateInfo* pCreateInfo, VkShader* pShader) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyShader(VkDevice device, VkShader shader) {
+    return VK_SUCCESS;
+}
+
+VkResult CreatePipelineCache(VkDevice device, const VkPipelineCacheCreateInfo* pCreateInfo, VkPipelineCache* pPipelineCache) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyPipelineCache(VkDevice device, VkPipelineCache pipelineCache) {
+    return VK_SUCCESS;
+}
+
+size_t GetPipelineCacheSize(VkDevice device, VkPipelineCache pipelineCache) {
+    return VK_SUCCESS;
+}
+
+VkResult GetPipelineCacheData(VkDevice device, VkPipelineCache pipelineCache, void* pData) {
+    return VK_SUCCESS;
+}
+
+VkResult MergePipelineCaches(VkDevice device, VkPipelineCache destCache, uint32_t srcCacheCount, const VkPipelineCache* pSrcCaches) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateGraphicsPipelines(VkDevice device, VkPipelineCache pipelineCache, uint32_t count, const VkGraphicsPipelineCreateInfo* pCreateInfos, VkPipeline* pPipelines) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateComputePipelines(VkDevice device, VkPipelineCache pipelineCache, uint32_t count, const VkComputePipelineCreateInfo* pCreateInfos, VkPipeline* pPipelines) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyPipeline(VkDevice device, VkPipeline pipeline) {
+    return VK_SUCCESS;
+}
+
+VkResult CreatePipelineLayout(VkDevice device, const VkPipelineLayoutCreateInfo* pCreateInfo, VkPipelineLayout* pPipelineLayout) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyPipelineLayout(VkDevice device, VkPipelineLayout pipelineLayout) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateSampler(VkDevice device, const VkSamplerCreateInfo* pCreateInfo, VkSampler* pSampler) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroySampler(VkDevice device, VkSampler sampler) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateDescriptorSetLayout(VkDevice device, const VkDescriptorSetLayoutCreateInfo* pCreateInfo, VkDescriptorSetLayout* pSetLayout) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDescriptorSetLayout(VkDevice device, VkDescriptorSetLayout descriptorSetLayout) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateDescriptorPool(VkDevice device, VkDescriptorPoolUsage poolUsage, uint32_t maxSets, const VkDescriptorPoolCreateInfo* pCreateInfo, VkDescriptorPool* pDescriptorPool) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDescriptorPool(VkDevice device, VkDescriptorPool descriptorPool) {
+    return VK_SUCCESS;
+}
+
+VkResult ResetDescriptorPool(VkDevice device, VkDescriptorPool descriptorPool) {
+    return VK_SUCCESS;
+}
+
+VkResult AllocDescriptorSets(VkDevice device, VkDescriptorPool descriptorPool, VkDescriptorSetUsage setUsage, uint32_t count, const VkDescriptorSetLayout* pSetLayouts, VkDescriptorSet* pDescriptorSets, uint32_t* pCount) {
+    return VK_SUCCESS;
+}
+
+VkResult UpdateDescriptorSets(VkDevice device, uint32_t writeCount, const VkWriteDescriptorSet* pDescriptorWrites, uint32_t copyCount, const VkCopyDescriptorSet* pDescriptorCopies) {
+    return VK_SUCCESS;
+}
+
+VkResult FreeDescriptorSets(VkDevice device, VkDescriptorPool descriptorPool, uint32_t count, const VkDescriptorSet* pDescriptorSets) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateDynamicViewportState(VkDevice device, const VkDynamicViewportStateCreateInfo* pCreateInfo, VkDynamicViewportState* pState) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDynamicViewportState(VkDevice device, VkDynamicViewportState dynamicViewportState) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateDynamicRasterState(VkDevice device, const VkDynamicRasterStateCreateInfo* pCreateInfo, VkDynamicRasterState* pState) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDynamicRasterState(VkDevice device, VkDynamicRasterState dynamicRasterState) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateDynamicColorBlendState(VkDevice device, const VkDynamicColorBlendStateCreateInfo* pCreateInfo, VkDynamicColorBlendState* pState) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDynamicColorBlendState(VkDevice device, VkDynamicColorBlendState dynamicColorBlendState) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateDynamicDepthStencilState(VkDevice device, const VkDynamicDepthStencilStateCreateInfo* pCreateInfo, VkDynamicDepthStencilState* pState) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyDynamicDepthStencilState(VkDevice device, VkDynamicDepthStencilState dynamicDepthStencilState) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateFramebuffer(VkDevice device, const VkFramebufferCreateInfo* pCreateInfo, VkFramebuffer* pFramebuffer) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyFramebuffer(VkDevice device, VkFramebuffer framebuffer) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateRenderPass(VkDevice device, const VkRenderPassCreateInfo* pCreateInfo, VkRenderPass* pRenderPass) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyRenderPass(VkDevice device, VkRenderPass renderPass) {
+    return VK_SUCCESS;
+}
+
+VkResult GetRenderAreaGranularity(VkDevice device, VkRenderPass renderPass, VkExtent2D* pGranularity) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateCommandPool(VkDevice device, const VkCmdPoolCreateInfo* pCreateInfo, VkCmdPool* pCmdPool) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyCommandPool(VkDevice device, VkCmdPool cmdPool) {
+    return VK_SUCCESS;
+}
+
+VkResult ResetCommandPool(VkDevice device, VkCmdPool cmdPool, VkCmdPoolResetFlags flags) {
+    return VK_SUCCESS;
+}
+
+VkResult CreateCommandBuffer(VkDevice device, const VkCmdBufferCreateInfo* pCreateInfo, VkCmdBuffer* pCmdBuffer) {
+    return VK_SUCCESS;
+}
+
+VkResult DestroyCommandBuffer(VkDevice device, VkCmdBuffer commandBuffer) {
+    return VK_SUCCESS;
+}
+
+VkResult BeginCommandBuffer(VkCmdBuffer cmdBuffer, const VkCmdBufferBeginInfo* pBeginInfo) {
+    return VK_SUCCESS;
+}
+
+VkResult EndCommandBuffer(VkCmdBuffer cmdBuffer) {
+    return VK_SUCCESS;
+}
+
+VkResult ResetCommandBuffer(VkCmdBuffer cmdBuffer, VkCmdBufferResetFlags flags) {
+    return VK_SUCCESS;
+}
+
+void CmdBindPipeline(VkCmdBuffer cmdBuffer, VkPipelineBindPoint pipelineBindPoint, VkPipeline pipeline) {
+}
+
+void CmdBindDynamicViewportState(VkCmdBuffer cmdBuffer, VkDynamicViewportState dynamicViewportState) {
+}
+
+void CmdBindDynamicRasterState(VkCmdBuffer cmdBuffer, VkDynamicRasterState dynamicRasterState) {
+}
+
+void CmdBindDynamicColorBlendState(VkCmdBuffer cmdBuffer, VkDynamicColorBlendState dynamicColorBlendState) {
+}
+
+void CmdBindDynamicDepthStencilState(VkCmdBuffer cmdBuffer, VkDynamicDepthStencilState dynamicDepthStencilState) {
+}
+
+void CmdBindDescriptorSets(VkCmdBuffer cmdBuffer, VkPipelineBindPoint pipelineBindPoint, VkPipelineLayout layout, uint32_t firstSet, uint32_t setCount, const VkDescriptorSet* pDescriptorSets, uint32_t dynamicOffsetCount, const uint32_t* pDynamicOffsets) {
+}
+
+void CmdBindIndexBuffer(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset, VkIndexType indexType) {
+}
+
+void CmdBindVertexBuffers(VkCmdBuffer cmdBuffer, uint32_t startBinding, uint32_t bindingCount, const VkBuffer* pBuffers, const VkDeviceSize* pOffsets) {
+}
+
+void CmdDraw(VkCmdBuffer cmdBuffer, uint32_t firstVertex, uint32_t vertexCount, uint32_t firstInstance, uint32_t instanceCount) {
+}
+
+void CmdDrawIndexed(VkCmdBuffer cmdBuffer, uint32_t firstIndex, uint32_t indexCount, int32_t vertexOffset, uint32_t firstInstance, uint32_t instanceCount) {
+}
+
+void CmdDrawIndirect(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset, uint32_t count, uint32_t stride) {
+}
+
+void CmdDrawIndexedIndirect(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset, uint32_t count, uint32_t stride) {
+}
+
+void CmdDispatch(VkCmdBuffer cmdBuffer, uint32_t x, uint32_t y, uint32_t z) {
+}
+
+void CmdDispatchIndirect(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset) {
+}
+
+void CmdCopyBuffer(VkCmdBuffer cmdBuffer, VkBuffer srcBuffer, VkBuffer destBuffer, uint32_t regionCount, const VkBufferCopy* pRegions) {
+}
+
+void CmdCopyImage(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkImageCopy* pRegions) {
+}
+
+void CmdBlitImage(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkImageBlit* pRegions, VkTexFilter filter) {
+}
+
+void CmdCopyBufferToImage(VkCmdBuffer cmdBuffer, VkBuffer srcBuffer, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkBufferImageCopy* pRegions) {
+}
+
+void CmdCopyImageToBuffer(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkBuffer destBuffer, uint32_t regionCount, const VkBufferImageCopy* pRegions) {
+}
+
+void CmdUpdateBuffer(VkCmdBuffer cmdBuffer, VkBuffer destBuffer, VkDeviceSize destOffset, VkDeviceSize dataSize, const uint32_t* pData) {
+}
+
+void CmdFillBuffer(VkCmdBuffer cmdBuffer, VkBuffer destBuffer, VkDeviceSize destOffset, VkDeviceSize fillSize, uint32_t data) {
+}
+
+void CmdClearColorImage(VkCmdBuffer cmdBuffer, VkImage image, VkImageLayout imageLayout, const VkClearColorValue* pColor, uint32_t rangeCount, const VkImageSubresourceRange* pRanges) {
+}
+
+void CmdClearDepthStencilImage(VkCmdBuffer cmdBuffer, VkImage image, VkImageLayout imageLayout, float depth, uint32_t stencil, uint32_t rangeCount, const VkImageSubresourceRange* pRanges) {
+}
+
+void CmdClearColorAttachment(VkCmdBuffer cmdBuffer, uint32_t colorAttachment, VkImageLayout imageLayout, const VkClearColorValue* pColor, uint32_t rectCount, const VkRect3D* pRects) {
+}
+
+void CmdClearDepthStencilAttachment(VkCmdBuffer cmdBuffer, VkImageAspectFlags imageAspectMask, VkImageLayout imageLayout, float depth, uint32_t stencil, uint32_t rectCount, const VkRect3D* pRects) {
+}
+
+void CmdResolveImage(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkImageResolve* pRegions) {
+}
+
+void CmdSetEvent(VkCmdBuffer cmdBuffer, VkEvent event, VkPipelineStageFlags stageMask) {
+}
+
+void CmdResetEvent(VkCmdBuffer cmdBuffer, VkEvent event, VkPipelineStageFlags stageMask) {
+}
+
+void CmdWaitEvents(VkCmdBuffer cmdBuffer, uint32_t eventCount, const VkEvent* pEvents, VkPipelineStageFlags srcStageMask, VkPipelineStageFlags destStageMask, uint32_t memBarrierCount, const void* const* ppMemBarriers) {
+}
+
+void CmdPipelineBarrier(VkCmdBuffer cmdBuffer, VkPipelineStageFlags srcStageMask, VkPipelineStageFlags destStageMask, VkBool32 byRegion, uint32_t memBarrierCount, const void* const* ppMemBarriers) {
+}
+
+void CmdBeginQuery(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t slot, VkQueryControlFlags flags) {
+}
+
+void CmdEndQuery(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t slot) {
+}
+
+void CmdResetQueryPool(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t startQuery, uint32_t queryCount) {
+}
+
+void CmdWriteTimestamp(VkCmdBuffer cmdBuffer, VkTimestampType timestampType, VkBuffer destBuffer, VkDeviceSize destOffset) {
+}
+
+void CmdCopyQueryPoolResults(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t startQuery, uint32_t queryCount, VkBuffer destBuffer, VkDeviceSize destOffset, VkDeviceSize destStride, VkQueryResultFlags flags) {
+}
+
+void CmdPushConstants(VkCmdBuffer cmdBuffer, VkPipelineLayout layout, VkShaderStageFlags stageFlags, uint32_t start, uint32_t length, const void* values) {
+}
+
+void CmdBeginRenderPass(VkCmdBuffer cmdBuffer, const VkRenderPassBeginInfo* pRenderPassBegin, VkRenderPassContents contents) {
+}
+
+void CmdNextSubpass(VkCmdBuffer cmdBuffer, VkRenderPassContents contents) {
+}
+
+void CmdEndRenderPass(VkCmdBuffer cmdBuffer) {
+}
+
+void CmdExecuteCommands(VkCmdBuffer cmdBuffer, uint32_t cmdBuffersCount, const VkCmdBuffer* pCmdBuffers) {
+}
+
+#pragma clang diagnostic pop
+// clang-format on
+
+}  // namespace null_driver
diff --git a/vulkan/nulldrv/null_driver.h b/vulkan/nulldrv/null_driver.h
new file mode 100644
index 0000000..f9208f9
--- /dev/null
+++ b/vulkan/nulldrv/null_driver.h
@@ -0,0 +1,168 @@
+#ifndef NULLDRV_NULL_DRIVER_H
+#define NULLDRV_NULL_DRIVER_H 1
+
+#define VK_PROTOTYPES
+#include <vulkan/vulkan.h>
+
+namespace null_driver {
+
+PFN_vkVoidFunction LookupInstanceProcAddr(const char* name);
+PFN_vkVoidFunction LookupDeviceProcAddr(const char* name);
+
+// clang-format off
+VkResult DestroyInstance(VkInstance instance);
+VkResult EnumeratePhysicalDevices(VkInstance instance, uint32_t* pPhysicalDeviceCount, VkPhysicalDevice* pPhysicalDevices);
+PFN_vkVoidFunction GetDeviceProcAddr(VkDevice device, const char* pName);
+VkResult GetPhysicalDeviceProperties(VkPhysicalDevice physicalDevice, VkPhysicalDeviceProperties* pProperties);
+VkResult GetPhysicalDeviceQueueCount(VkPhysicalDevice physicalDevice, uint32_t* pCount);
+VkResult GetPhysicalDeviceQueueProperties(VkPhysicalDevice physicalDevice, uint32_t count, VkPhysicalDeviceQueueProperties* pQueueProperties);
+VkResult GetPhysicalDeviceMemoryProperties(VkPhysicalDevice physicalDevice, VkPhysicalDeviceMemoryProperties* pMemoryProperties);
+PFN_vkVoidFunction GetInstanceProcAddr(VkInstance instance, const char* pName);
+VkResult GetPhysicalDeviceFeatures(VkPhysicalDevice physicalDevice, VkPhysicalDeviceFeatures* pFeatures);
+VkResult GetPhysicalDeviceFormatProperties(VkPhysicalDevice physicalDevice, VkFormat format, VkFormatProperties* pFormatProperties);
+VkResult GetPhysicalDeviceImageFormatProperties(VkPhysicalDevice physicalDevice, VkFormat format, VkImageType type, VkImageTiling tiling, VkImageUsageFlags usage, VkImageFormatProperties* pImageFormatProperties);
+VkResult GetPhysicalDeviceLimits(VkPhysicalDevice physicalDevice, VkPhysicalDeviceLimits* pLimits);
+VkResult CreateDevice(VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo* pCreateInfo, VkDevice* pDevice);
+VkResult DestroyDevice(VkDevice device);
+VkResult GetGlobalExtensionProperties(const char* pLayerName, uint32_t* pCount, VkExtensionProperties* pProperties);
+VkResult GetGlobalLayerProperties(uint32_t* pCount, VkLayerProperties* pProperties);
+VkResult GetPhysicalDeviceLayerProperties(VkPhysicalDevice physicalDevice, uint32_t* pCount, VkLayerProperties* pProperties);
+VkResult GetPhysicalDeviceExtensionProperties(VkPhysicalDevice physicalDevice, const char* pLayerName, uint32_t* pCount, VkExtensionProperties* pProperties);
+VkResult GetDeviceQueue(VkDevice device, uint32_t queueFamilyIndex, uint32_t queueIndex, VkQueue* pQueue);
+VkResult QueueSubmit(VkQueue queue, uint32_t cmdBufferCount, const VkCmdBuffer* pCmdBuffers, VkFence fence);
+VkResult QueueWaitIdle(VkQueue queue);
+VkResult DeviceWaitIdle(VkDevice device);
+VkResult AllocMemory(VkDevice device, const VkMemoryAllocInfo* pAllocInfo, VkDeviceMemory* pMem);
+VkResult FreeMemory(VkDevice device, VkDeviceMemory mem);
+VkResult MapMemory(VkDevice device, VkDeviceMemory mem, VkDeviceSize offset, VkDeviceSize size, VkMemoryMapFlags flags, void** ppData);
+VkResult UnmapMemory(VkDevice device, VkDeviceMemory mem);
+VkResult FlushMappedMemoryRanges(VkDevice device, uint32_t memRangeCount, const VkMappedMemoryRange* pMemRanges);
+VkResult InvalidateMappedMemoryRanges(VkDevice device, uint32_t memRangeCount, const VkMappedMemoryRange* pMemRanges);
+VkResult GetDeviceMemoryCommitment(VkDevice device, VkDeviceMemory memory, VkDeviceSize* pCommittedMemoryInBytes);
+VkResult GetBufferMemoryRequirements(VkDevice device, VkBuffer buffer, VkMemoryRequirements* pMemoryRequirements);
+VkResult BindBufferMemory(VkDevice device, VkBuffer buffer, VkDeviceMemory mem, VkDeviceSize memOffset);
+VkResult GetImageMemoryRequirements(VkDevice device, VkImage image, VkMemoryRequirements* pMemoryRequirements);
+VkResult BindImageMemory(VkDevice device, VkImage image, VkDeviceMemory mem, VkDeviceSize memOffset);
+VkResult GetImageSparseMemoryRequirements(VkDevice device, VkImage image, uint32_t* pNumRequirements, VkSparseImageMemoryRequirements* pSparseMemoryRequirements);
+VkResult GetPhysicalDeviceSparseImageFormatProperties(VkPhysicalDevice physicalDevice, VkFormat format, VkImageType type, uint32_t samples, VkImageUsageFlags usage, VkImageTiling tiling, uint32_t* pNumProperties, VkSparseImageFormatProperties* pProperties);
+VkResult QueueBindSparseBufferMemory(VkQueue queue, VkBuffer buffer, uint32_t numBindings, const VkSparseMemoryBindInfo* pBindInfo);
+VkResult QueueBindSparseImageOpaqueMemory(VkQueue queue, VkImage image, uint32_t numBindings, const VkSparseMemoryBindInfo* pBindInfo);
+VkResult QueueBindSparseImageMemory(VkQueue queue, VkImage image, uint32_t numBindings, const VkSparseImageMemoryBindInfo* pBindInfo);
+VkResult CreateFence(VkDevice device, const VkFenceCreateInfo* pCreateInfo, VkFence* pFence);
+VkResult DestroyFence(VkDevice device, VkFence fence);
+VkResult ResetFences(VkDevice device, uint32_t fenceCount, const VkFence* pFences);
+VkResult GetFenceStatus(VkDevice device, VkFence fence);
+VkResult WaitForFences(VkDevice device, uint32_t fenceCount, const VkFence* pFences, VkBool32 waitAll, uint64_t timeout);
+VkResult CreateSemaphore(VkDevice device, const VkSemaphoreCreateInfo* pCreateInfo, VkSemaphore* pSemaphore);
+VkResult DestroySemaphore(VkDevice device, VkSemaphore semaphore);
+VkResult QueueSignalSemaphore(VkQueue queue, VkSemaphore semaphore);
+VkResult QueueWaitSemaphore(VkQueue queue, VkSemaphore semaphore);
+VkResult CreateEvent(VkDevice device, const VkEventCreateInfo* pCreateInfo, VkEvent* pEvent);
+VkResult DestroyEvent(VkDevice device, VkEvent event);
+VkResult GetEventStatus(VkDevice device, VkEvent event);
+VkResult SetEvent(VkDevice device, VkEvent event);
+VkResult ResetEvent(VkDevice device, VkEvent event);
+VkResult CreateQueryPool(VkDevice device, const VkQueryPoolCreateInfo* pCreateInfo, VkQueryPool* pQueryPool);
+VkResult DestroyQueryPool(VkDevice device, VkQueryPool queryPool);
+VkResult GetQueryPoolResults(VkDevice device, VkQueryPool queryPool, uint32_t startQuery, uint32_t queryCount, size_t* pDataSize, void* pData, VkQueryResultFlags flags);
+VkResult CreateBuffer(VkDevice device, const VkBufferCreateInfo* pCreateInfo, VkBuffer* pBuffer);
+VkResult DestroyBuffer(VkDevice device, VkBuffer buffer);
+VkResult CreateBufferView(VkDevice device, const VkBufferViewCreateInfo* pCreateInfo, VkBufferView* pView);
+VkResult DestroyBufferView(VkDevice device, VkBufferView bufferView);
+VkResult CreateImage(VkDevice device, const VkImageCreateInfo* pCreateInfo, VkImage* pImage);
+VkResult DestroyImage(VkDevice device, VkImage image);
+VkResult GetImageSubresourceLayout(VkDevice device, VkImage image, const VkImageSubresource* pSubresource, VkSubresourceLayout* pLayout);
+VkResult CreateImageView(VkDevice device, const VkImageViewCreateInfo* pCreateInfo, VkImageView* pView);
+VkResult DestroyImageView(VkDevice device, VkImageView imageView);
+VkResult CreateAttachmentView(VkDevice device, const VkAttachmentViewCreateInfo* pCreateInfo, VkAttachmentView* pView);
+VkResult DestroyAttachmentView(VkDevice device, VkAttachmentView attachmentView);
+VkResult CreateShaderModule(VkDevice device, const VkShaderModuleCreateInfo* pCreateInfo, VkShaderModule* pShaderModule);
+VkResult DestroyShaderModule(VkDevice device, VkShaderModule shaderModule);
+VkResult CreateShader(VkDevice device, const VkShaderCreateInfo* pCreateInfo, VkShader* pShader);
+VkResult DestroyShader(VkDevice device, VkShader shader);
+VkResult CreatePipelineCache(VkDevice device, const VkPipelineCacheCreateInfo* pCreateInfo, VkPipelineCache* pPipelineCache);
+VkResult DestroyPipelineCache(VkDevice device, VkPipelineCache pipelineCache);
+size_t GetPipelineCacheSize(VkDevice device, VkPipelineCache pipelineCache);
+VkResult GetPipelineCacheData(VkDevice device, VkPipelineCache pipelineCache, void* pData);
+VkResult MergePipelineCaches(VkDevice device, VkPipelineCache destCache, uint32_t srcCacheCount, const VkPipelineCache* pSrcCaches);
+VkResult CreateGraphicsPipelines(VkDevice device, VkPipelineCache pipelineCache, uint32_t count, const VkGraphicsPipelineCreateInfo* pCreateInfos, VkPipeline* pPipelines);
+VkResult CreateComputePipelines(VkDevice device, VkPipelineCache pipelineCache, uint32_t count, const VkComputePipelineCreateInfo* pCreateInfos, VkPipeline* pPipelines);
+VkResult DestroyPipeline(VkDevice device, VkPipeline pipeline);
+VkResult CreatePipelineLayout(VkDevice device, const VkPipelineLayoutCreateInfo* pCreateInfo, VkPipelineLayout* pPipelineLayout);
+VkResult DestroyPipelineLayout(VkDevice device, VkPipelineLayout pipelineLayout);
+VkResult CreateSampler(VkDevice device, const VkSamplerCreateInfo* pCreateInfo, VkSampler* pSampler);
+VkResult DestroySampler(VkDevice device, VkSampler sampler);
+VkResult CreateDescriptorSetLayout(VkDevice device, const VkDescriptorSetLayoutCreateInfo* pCreateInfo, VkDescriptorSetLayout* pSetLayout);
+VkResult DestroyDescriptorSetLayout(VkDevice device, VkDescriptorSetLayout descriptorSetLayout);
+VkResult CreateDescriptorPool(VkDevice device, VkDescriptorPoolUsage poolUsage, uint32_t maxSets, const VkDescriptorPoolCreateInfo* pCreateInfo, VkDescriptorPool* pDescriptorPool);
+VkResult DestroyDescriptorPool(VkDevice device, VkDescriptorPool descriptorPool);
+VkResult ResetDescriptorPool(VkDevice device, VkDescriptorPool descriptorPool);
+VkResult AllocDescriptorSets(VkDevice device, VkDescriptorPool descriptorPool, VkDescriptorSetUsage setUsage, uint32_t count, const VkDescriptorSetLayout* pSetLayouts, VkDescriptorSet* pDescriptorSets, uint32_t* pCount);
+VkResult FreeDescriptorSets(VkDevice device, VkDescriptorPool descriptorPool, uint32_t count, const VkDescriptorSet* pDescriptorSets);
+VkResult UpdateDescriptorSets(VkDevice device, uint32_t writeCount, const VkWriteDescriptorSet* pDescriptorWrites, uint32_t copyCount, const VkCopyDescriptorSet* pDescriptorCopies);
+VkResult CreateDynamicViewportState(VkDevice device, const VkDynamicViewportStateCreateInfo* pCreateInfo, VkDynamicViewportState* pState);
+VkResult DestroyDynamicViewportState(VkDevice device, VkDynamicViewportState dynamicViewportState);
+VkResult CreateDynamicRasterState(VkDevice device, const VkDynamicRasterStateCreateInfo* pCreateInfo, VkDynamicRasterState* pState);
+VkResult DestroyDynamicRasterState(VkDevice device, VkDynamicRasterState dynamicRasterState);
+VkResult CreateDynamicColorBlendState(VkDevice device, const VkDynamicColorBlendStateCreateInfo* pCreateInfo, VkDynamicColorBlendState* pState);
+VkResult DestroyDynamicColorBlendState(VkDevice device, VkDynamicColorBlendState dynamicColorBlendState);
+VkResult CreateDynamicDepthStencilState(VkDevice device, const VkDynamicDepthStencilStateCreateInfo* pCreateInfo, VkDynamicDepthStencilState* pState);
+VkResult DestroyDynamicDepthStencilState(VkDevice device, VkDynamicDepthStencilState dynamicDepthStencilState);
+VkResult CreateFramebuffer(VkDevice device, const VkFramebufferCreateInfo* pCreateInfo, VkFramebuffer* pFramebuffer);
+VkResult DestroyFramebuffer(VkDevice device, VkFramebuffer framebuffer);
+VkResult CreateRenderPass(VkDevice device, const VkRenderPassCreateInfo* pCreateInfo, VkRenderPass* pRenderPass);
+VkResult DestroyRenderPass(VkDevice device, VkRenderPass renderPass);
+VkResult GetRenderAreaGranularity(VkDevice device, VkRenderPass renderPass, VkExtent2D* pGranularity);
+VkResult CreateCommandPool(VkDevice device, const VkCmdPoolCreateInfo* pCreateInfo, VkCmdPool* pCmdPool);
+VkResult DestroyCommandPool(VkDevice device, VkCmdPool cmdPool);
+VkResult ResetCommandPool(VkDevice device, VkCmdPool cmdPool, VkCmdPoolResetFlags flags);
+VkResult CreateCommandBuffer(VkDevice device, const VkCmdBufferCreateInfo* pCreateInfo, VkCmdBuffer* pCmdBuffer);
+VkResult DestroyCommandBuffer(VkDevice device, VkCmdBuffer commandBuffer);
+VkResult BeginCommandBuffer(VkCmdBuffer cmdBuffer, const VkCmdBufferBeginInfo* pBeginInfo);
+VkResult EndCommandBuffer(VkCmdBuffer cmdBuffer);
+VkResult ResetCommandBuffer(VkCmdBuffer cmdBuffer, VkCmdBufferResetFlags flags);
+void CmdBindPipeline(VkCmdBuffer cmdBuffer, VkPipelineBindPoint pipelineBindPoint, VkPipeline pipeline);
+void CmdBindDynamicViewportState(VkCmdBuffer cmdBuffer, VkDynamicViewportState dynamicViewportState);
+void CmdBindDynamicRasterState(VkCmdBuffer cmdBuffer, VkDynamicRasterState dynamicRasterState);
+void CmdBindDynamicColorBlendState(VkCmdBuffer cmdBuffer, VkDynamicColorBlendState dynamicColorBlendState);
+void CmdBindDynamicDepthStencilState(VkCmdBuffer cmdBuffer, VkDynamicDepthStencilState dynamicDepthStencilState);
+void CmdBindDescriptorSets(VkCmdBuffer cmdBuffer, VkPipelineBindPoint pipelineBindPoint, VkPipelineLayout layout, uint32_t firstSet, uint32_t setCount, const VkDescriptorSet* pDescriptorSets, uint32_t dynamicOffsetCount, const uint32_t* pDynamicOffsets);
+void CmdBindIndexBuffer(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset, VkIndexType indexType);
+void CmdBindVertexBuffers(VkCmdBuffer cmdBuffer, uint32_t startBinding, uint32_t bindingCount, const VkBuffer* pBuffers, const VkDeviceSize* pOffsets);
+void CmdDraw(VkCmdBuffer cmdBuffer, uint32_t firstVertex, uint32_t vertexCount, uint32_t firstInstance, uint32_t instanceCount);
+void CmdDrawIndexed(VkCmdBuffer cmdBuffer, uint32_t firstIndex, uint32_t indexCount, int32_t vertexOffset, uint32_t firstInstance, uint32_t instanceCount);
+void CmdDrawIndirect(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset, uint32_t count, uint32_t stride);
+void CmdDrawIndexedIndirect(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset, uint32_t count, uint32_t stride);
+void CmdDispatch(VkCmdBuffer cmdBuffer, uint32_t x, uint32_t y, uint32_t z);
+void CmdDispatchIndirect(VkCmdBuffer cmdBuffer, VkBuffer buffer, VkDeviceSize offset);
+void CmdCopyBuffer(VkCmdBuffer cmdBuffer, VkBuffer srcBuffer, VkBuffer destBuffer, uint32_t regionCount, const VkBufferCopy* pRegions);
+void CmdCopyImage(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkImageCopy* pRegions);
+void CmdBlitImage(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkImageBlit* pRegions, VkTexFilter filter);
+void CmdCopyBufferToImage(VkCmdBuffer cmdBuffer, VkBuffer srcBuffer, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkBufferImageCopy* pRegions);
+void CmdCopyImageToBuffer(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkBuffer destBuffer, uint32_t regionCount, const VkBufferImageCopy* pRegions);
+void CmdUpdateBuffer(VkCmdBuffer cmdBuffer, VkBuffer destBuffer, VkDeviceSize destOffset, VkDeviceSize dataSize, const uint32_t* pData);
+void CmdFillBuffer(VkCmdBuffer cmdBuffer, VkBuffer destBuffer, VkDeviceSize destOffset, VkDeviceSize fillSize, uint32_t data);
+void CmdClearColorImage(VkCmdBuffer cmdBuffer, VkImage image, VkImageLayout imageLayout, const VkClearColorValue* pColor, uint32_t rangeCount, const VkImageSubresourceRange* pRanges);
+void CmdClearDepthStencilImage(VkCmdBuffer cmdBuffer, VkImage image, VkImageLayout imageLayout, float depth, uint32_t stencil, uint32_t rangeCount, const VkImageSubresourceRange* pRanges);
+void CmdClearColorAttachment(VkCmdBuffer cmdBuffer, uint32_t colorAttachment, VkImageLayout imageLayout, const VkClearColorValue* pColor, uint32_t rectCount, const VkRect3D* pRects);
+void CmdClearDepthStencilAttachment(VkCmdBuffer cmdBuffer, VkImageAspectFlags imageAspectMask, VkImageLayout imageLayout, float depth, uint32_t stencil, uint32_t rectCount, const VkRect3D* pRects);
+void CmdResolveImage(VkCmdBuffer cmdBuffer, VkImage srcImage, VkImageLayout srcImageLayout, VkImage destImage, VkImageLayout destImageLayout, uint32_t regionCount, const VkImageResolve* pRegions);
+void CmdSetEvent(VkCmdBuffer cmdBuffer, VkEvent event, VkPipelineStageFlags stageMask);
+void CmdResetEvent(VkCmdBuffer cmdBuffer, VkEvent event, VkPipelineStageFlags stageMask);
+void CmdWaitEvents(VkCmdBuffer cmdBuffer, uint32_t eventCount, const VkEvent* pEvents, VkPipelineStageFlags srcStageMask, VkPipelineStageFlags destStageMask, uint32_t memBarrierCount, const void* const* ppMemBarriers);
+void CmdPipelineBarrier(VkCmdBuffer cmdBuffer, VkPipelineStageFlags srcStageMask, VkPipelineStageFlags destStageMask, VkBool32 byRegion, uint32_t memBarrierCount, const void* const* ppMemBarriers);
+void CmdBeginQuery(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t slot, VkQueryControlFlags flags);
+void CmdEndQuery(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t slot);
+void CmdResetQueryPool(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t startQuery, uint32_t queryCount);
+void CmdWriteTimestamp(VkCmdBuffer cmdBuffer, VkTimestampType timestampType, VkBuffer destBuffer, VkDeviceSize destOffset);
+void CmdCopyQueryPoolResults(VkCmdBuffer cmdBuffer, VkQueryPool queryPool, uint32_t startQuery, uint32_t queryCount, VkBuffer destBuffer, VkDeviceSize destOffset, VkDeviceSize destStride, VkQueryResultFlags flags);
+void CmdPushConstants(VkCmdBuffer cmdBuffer, VkPipelineLayout layout, VkShaderStageFlags stageFlags, uint32_t start, uint32_t length, const void* values);
+void CmdBeginRenderPass(VkCmdBuffer cmdBuffer, const VkRenderPassBeginInfo* pRenderPassBegin, VkRenderPassContents contents);
+void CmdNextSubpass(VkCmdBuffer cmdBuffer, VkRenderPassContents contents);
+void CmdEndRenderPass(VkCmdBuffer cmdBuffer);
+void CmdExecuteCommands(VkCmdBuffer cmdBuffer, uint32_t cmdBuffersCount, const VkCmdBuffer* pCmdBuffers);
+// clang-format on
+
+}  // namespace null_driver
+
+#endif  // NULLDRV_NULL_DRIVER_H
diff --git a/vulkan/nulldrv/null_driver_gen.cpp b/vulkan/nulldrv/null_driver_gen.cpp
new file mode 100644
index 0000000..56ee49a
--- /dev/null
+++ b/vulkan/nulldrv/null_driver_gen.cpp
@@ -0,0 +1,216 @@
+/*
+* Copyright 2015 The Android Open Source Project
+*
+* Licensed under the Apache License, Version 2.0 (the "License");
+* you may not use this file except in compliance with the License.
+* You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the License is distributed on an "AS IS" BASIS,
+* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+* See the License for the specific language governing permissions and
+* limitations under the License.
+*/
+
+// This file is generated. Do not edit manually!
+// To regenerate: $ apic template ../api/vulkan.api null_driver_gen.cpp.tmpl
+// Requires apic from https://android.googlesource.com/platform/tools/gpu/.
+
+#include <algorithm>
+#include "null_driver.h"
+
+using namespace null_driver;
+
+namespace {
+
+struct NameProcEntry {
+    const char* name;
+    PFN_vkVoidFunction proc;
+};
+
+template <size_t N>
+PFN_vkVoidFunction LookupProcAddr(const NameProcEntry(&table)[N],
+                                  const char* name) {
+    auto entry = std::lower_bound(table, table + N, name,
+                                  [](const NameProcEntry& e, const char* n) {
+                                      return strcmp(e.name, n) < 0;
+                                  });
+    if (entry != (table + N) && strcmp(entry->name, name) == 0)
+        return entry->proc;
+    return nullptr;
+}
+
+const NameProcEntry kInstanceProcTbl[] = {
+    // clang-format off
+    {"vkCreateDevice", reinterpret_cast<PFN_vkVoidFunction>(CreateDevice)},
+    {"vkDestroyInstance", reinterpret_cast<PFN_vkVoidFunction>(DestroyInstance)},
+    {"vkEnumeratePhysicalDevices", reinterpret_cast<PFN_vkVoidFunction>(EnumeratePhysicalDevices)},
+    {"vkGetInstanceProcAddr", reinterpret_cast<PFN_vkVoidFunction>(GetInstanceProcAddr)},
+    {"vkGetPhysicalDeviceExtensionProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceExtensionProperties)},
+    {"vkGetPhysicalDeviceFeatures", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceFeatures)},
+    {"vkGetPhysicalDeviceFormatProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceFormatProperties)},
+    {"vkGetPhysicalDeviceImageFormatProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceImageFormatProperties)},
+    {"vkGetPhysicalDeviceLayerProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceLayerProperties)},
+    {"vkGetPhysicalDeviceLimits", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceLimits)},
+    {"vkGetPhysicalDeviceMemoryProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceMemoryProperties)},
+    {"vkGetPhysicalDeviceProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceProperties)},
+    {"vkGetPhysicalDeviceQueueCount", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceQueueCount)},
+    {"vkGetPhysicalDeviceQueueProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceQueueProperties)},
+    {"vkGetPhysicalDeviceSparseImageFormatProperties", reinterpret_cast<PFN_vkVoidFunction>(GetPhysicalDeviceSparseImageFormatProperties)},
+    // clang-format on
+};
+
+const NameProcEntry kDeviceProcTbl[] = {
+    // clang-format off
+    {"vkAllocDescriptorSets", reinterpret_cast<PFN_vkVoidFunction>(AllocDescriptorSets)},
+    {"vkAllocMemory", reinterpret_cast<PFN_vkVoidFunction>(AllocMemory)},
+    {"vkBeginCommandBuffer", reinterpret_cast<PFN_vkVoidFunction>(BeginCommandBuffer)},
+    {"vkBindBufferMemory", reinterpret_cast<PFN_vkVoidFunction>(BindBufferMemory)},
+    {"vkBindImageMemory", reinterpret_cast<PFN_vkVoidFunction>(BindImageMemory)},
+    {"vkCmdBeginQuery", reinterpret_cast<PFN_vkVoidFunction>(CmdBeginQuery)},
+    {"vkCmdBeginRenderPass", reinterpret_cast<PFN_vkVoidFunction>(CmdBeginRenderPass)},
+    {"vkCmdBindDescriptorSets", reinterpret_cast<PFN_vkVoidFunction>(CmdBindDescriptorSets)},
+    {"vkCmdBindDynamicColorBlendState", reinterpret_cast<PFN_vkVoidFunction>(CmdBindDynamicColorBlendState)},
+    {"vkCmdBindDynamicDepthStencilState", reinterpret_cast<PFN_vkVoidFunction>(CmdBindDynamicDepthStencilState)},
+    {"vkCmdBindDynamicRasterState", reinterpret_cast<PFN_vkVoidFunction>(CmdBindDynamicRasterState)},
+    {"vkCmdBindDynamicViewportState", reinterpret_cast<PFN_vkVoidFunction>(CmdBindDynamicViewportState)},
+    {"vkCmdBindIndexBuffer", reinterpret_cast<PFN_vkVoidFunction>(CmdBindIndexBuffer)},
+    {"vkCmdBindPipeline", reinterpret_cast<PFN_vkVoidFunction>(CmdBindPipeline)},
+    {"vkCmdBindVertexBuffers", reinterpret_cast<PFN_vkVoidFunction>(CmdBindVertexBuffers)},
+    {"vkCmdBlitImage", reinterpret_cast<PFN_vkVoidFunction>(CmdBlitImage)},
+    {"vkCmdClearColorAttachment", reinterpret_cast<PFN_vkVoidFunction>(CmdClearColorAttachment)},
+    {"vkCmdClearColorImage", reinterpret_cast<PFN_vkVoidFunction>(CmdClearColorImage)},
+    {"vkCmdClearDepthStencilAttachment", reinterpret_cast<PFN_vkVoidFunction>(CmdClearDepthStencilAttachment)},
+    {"vkCmdClearDepthStencilImage", reinterpret_cast<PFN_vkVoidFunction>(CmdClearDepthStencilImage)},
+    {"vkCmdCopyBuffer", reinterpret_cast<PFN_vkVoidFunction>(CmdCopyBuffer)},
+    {"vkCmdCopyBufferToImage", reinterpret_cast<PFN_vkVoidFunction>(CmdCopyBufferToImage)},
+    {"vkCmdCopyImage", reinterpret_cast<PFN_vkVoidFunction>(CmdCopyImage)},
+    {"vkCmdCopyImageToBuffer", reinterpret_cast<PFN_vkVoidFunction>(CmdCopyImageToBuffer)},
+    {"vkCmdCopyQueryPoolResults", reinterpret_cast<PFN_vkVoidFunction>(CmdCopyQueryPoolResults)},
+    {"vkCmdDispatch", reinterpret_cast<PFN_vkVoidFunction>(CmdDispatch)},
+    {"vkCmdDispatchIndirect", reinterpret_cast<PFN_vkVoidFunction>(CmdDispatchIndirect)},
+    {"vkCmdDraw", reinterpret_cast<PFN_vkVoidFunction>(CmdDraw)},
+    {"vkCmdDrawIndexed", reinterpret_cast<PFN_vkVoidFunction>(CmdDrawIndexed)},
+    {"vkCmdDrawIndexedIndirect", reinterpret_cast<PFN_vkVoidFunction>(CmdDrawIndexedIndirect)},
+    {"vkCmdDrawIndirect", reinterpret_cast<PFN_vkVoidFunction>(CmdDrawIndirect)},
+    {"vkCmdEndQuery", reinterpret_cast<PFN_vkVoidFunction>(CmdEndQuery)},
+    {"vkCmdEndRenderPass", reinterpret_cast<PFN_vkVoidFunction>(CmdEndRenderPass)},
+    {"vkCmdExecuteCommands", reinterpret_cast<PFN_vkVoidFunction>(CmdExecuteCommands)},
+    {"vkCmdFillBuffer", reinterpret_cast<PFN_vkVoidFunction>(CmdFillBuffer)},
+    {"vkCmdNextSubpass", reinterpret_cast<PFN_vkVoidFunction>(CmdNextSubpass)},
+    {"vkCmdPipelineBarrier", reinterpret_cast<PFN_vkVoidFunction>(CmdPipelineBarrier)},
+    {"vkCmdPushConstants", reinterpret_cast<PFN_vkVoidFunction>(CmdPushConstants)},
+    {"vkCmdResetEvent", reinterpret_cast<PFN_vkVoidFunction>(CmdResetEvent)},
+    {"vkCmdResetQueryPool", reinterpret_cast<PFN_vkVoidFunction>(CmdResetQueryPool)},
+    {"vkCmdResolveImage", reinterpret_cast<PFN_vkVoidFunction>(CmdResolveImage)},
+    {"vkCmdSetEvent", reinterpret_cast<PFN_vkVoidFunction>(CmdSetEvent)},
+    {"vkCmdUpdateBuffer", reinterpret_cast<PFN_vkVoidFunction>(CmdUpdateBuffer)},
+    {"vkCmdWaitEvents", reinterpret_cast<PFN_vkVoidFunction>(CmdWaitEvents)},
+    {"vkCmdWriteTimestamp", reinterpret_cast<PFN_vkVoidFunction>(CmdWriteTimestamp)},
+    {"vkCreateAttachmentView", reinterpret_cast<PFN_vkVoidFunction>(CreateAttachmentView)},
+    {"vkCreateBuffer", reinterpret_cast<PFN_vkVoidFunction>(CreateBuffer)},
+    {"vkCreateBufferView", reinterpret_cast<PFN_vkVoidFunction>(CreateBufferView)},
+    {"vkCreateCommandBuffer", reinterpret_cast<PFN_vkVoidFunction>(CreateCommandBuffer)},
+    {"vkCreateCommandPool", reinterpret_cast<PFN_vkVoidFunction>(CreateCommandPool)},
+    {"vkCreateComputePipelines", reinterpret_cast<PFN_vkVoidFunction>(CreateComputePipelines)},
+    {"vkCreateDescriptorPool", reinterpret_cast<PFN_vkVoidFunction>(CreateDescriptorPool)},
+    {"vkCreateDescriptorSetLayout", reinterpret_cast<PFN_vkVoidFunction>(CreateDescriptorSetLayout)},
+    {"vkCreateDynamicColorBlendState", reinterpret_cast<PFN_vkVoidFunction>(CreateDynamicColorBlendState)},
+    {"vkCreateDynamicDepthStencilState", reinterpret_cast<PFN_vkVoidFunction>(CreateDynamicDepthStencilState)},
+    {"vkCreateDynamicRasterState", reinterpret_cast<PFN_vkVoidFunction>(CreateDynamicRasterState)},
+    {"vkCreateDynamicViewportState", reinterpret_cast<PFN_vkVoidFunction>(CreateDynamicViewportState)},
+    {"vkCreateEvent", reinterpret_cast<PFN_vkVoidFunction>(CreateEvent)},
+    {"vkCreateFence", reinterpret_cast<PFN_vkVoidFunction>(CreateFence)},
+    {"vkCreateFramebuffer", reinterpret_cast<PFN_vkVoidFunction>(CreateFramebuffer)},
+    {"vkCreateGraphicsPipelines", reinterpret_cast<PFN_vkVoidFunction>(CreateGraphicsPipelines)},
+    {"vkCreateImage", reinterpret_cast<PFN_vkVoidFunction>(CreateImage)},
+    {"vkCreateImageView", reinterpret_cast<PFN_vkVoidFunction>(CreateImageView)},
+    {"vkCreatePipelineCache", reinterpret_cast<PFN_vkVoidFunction>(CreatePipelineCache)},
+    {"vkCreatePipelineLayout", reinterpret_cast<PFN_vkVoidFunction>(CreatePipelineLayout)},
+    {"vkCreateQueryPool", reinterpret_cast<PFN_vkVoidFunction>(CreateQueryPool)},
+    {"vkCreateRenderPass", reinterpret_cast<PFN_vkVoidFunction>(CreateRenderPass)},
+    {"vkCreateSampler", reinterpret_cast<PFN_vkVoidFunction>(CreateSampler)},
+    {"vkCreateSemaphore", reinterpret_cast<PFN_vkVoidFunction>(CreateSemaphore)},
+    {"vkCreateShader", reinterpret_cast<PFN_vkVoidFunction>(CreateShader)},
+    {"vkCreateShaderModule", reinterpret_cast<PFN_vkVoidFunction>(CreateShaderModule)},
+    {"vkDestroyAttachmentView", reinterpret_cast<PFN_vkVoidFunction>(DestroyAttachmentView)},
+    {"vkDestroyBuffer", reinterpret_cast<PFN_vkVoidFunction>(DestroyBuffer)},
+    {"vkDestroyBufferView", reinterpret_cast<PFN_vkVoidFunction>(DestroyBufferView)},
+    {"vkDestroyCommandBuffer", reinterpret_cast<PFN_vkVoidFunction>(DestroyCommandBuffer)},
+    {"vkDestroyCommandPool", reinterpret_cast<PFN_vkVoidFunction>(DestroyCommandPool)},
+    {"vkDestroyDescriptorPool", reinterpret_cast<PFN_vkVoidFunction>(DestroyDescriptorPool)},
+    {"vkDestroyDescriptorSetLayout", reinterpret_cast<PFN_vkVoidFunction>(DestroyDescriptorSetLayout)},
+    {"vkDestroyDevice", reinterpret_cast<PFN_vkVoidFunction>(DestroyDevice)},
+    {"vkDestroyDynamicColorBlendState", reinterpret_cast<PFN_vkVoidFunction>(DestroyDynamicColorBlendState)},
+    {"vkDestroyDynamicDepthStencilState", reinterpret_cast<PFN_vkVoidFunction>(DestroyDynamicDepthStencilState)},
+    {"vkDestroyDynamicRasterState", reinterpret_cast<PFN_vkVoidFunction>(DestroyDynamicRasterState)},
+    {"vkDestroyDynamicViewportState", reinterpret_cast<PFN_vkVoidFunction>(DestroyDynamicViewportState)},
+    {"vkDestroyEvent", reinterpret_cast<PFN_vkVoidFunction>(DestroyEvent)},
+    {"vkDestroyFence", reinterpret_cast<PFN_vkVoidFunction>(DestroyFence)},
+    {"vkDestroyFramebuffer", reinterpret_cast<PFN_vkVoidFunction>(DestroyFramebuffer)},
+    {"vkDestroyImage", reinterpret_cast<PFN_vkVoidFunction>(DestroyImage)},
+    {"vkDestroyImageView", reinterpret_cast<PFN_vkVoidFunction>(DestroyImageView)},
+    {"vkDestroyPipeline", reinterpret_cast<PFN_vkVoidFunction>(DestroyPipeline)},
+    {"vkDestroyPipelineCache", reinterpret_cast<PFN_vkVoidFunction>(DestroyPipelineCache)},
+    {"vkDestroyPipelineLayout", reinterpret_cast<PFN_vkVoidFunction>(DestroyPipelineLayout)},
+    {"vkDestroyQueryPool", reinterpret_cast<PFN_vkVoidFunction>(DestroyQueryPool)},
+    {"vkDestroyRenderPass", reinterpret_cast<PFN_vkVoidFunction>(DestroyRenderPass)},
+    {"vkDestroySampler", reinterpret_cast<PFN_vkVoidFunction>(DestroySampler)},
+    {"vkDestroySemaphore", reinterpret_cast<PFN_vkVoidFunction>(DestroySemaphore)},
+    {"vkDestroyShader", reinterpret_cast<PFN_vkVoidFunction>(DestroyShader)},
+    {"vkDestroyShaderModule", reinterpret_cast<PFN_vkVoidFunction>(DestroyShaderModule)},
+    {"vkDeviceWaitIdle", reinterpret_cast<PFN_vkVoidFunction>(DeviceWaitIdle)},
+    {"vkEndCommandBuffer", reinterpret_cast<PFN_vkVoidFunction>(EndCommandBuffer)},
+    {"vkFlushMappedMemoryRanges", reinterpret_cast<PFN_vkVoidFunction>(FlushMappedMemoryRanges)},
+    {"vkFreeDescriptorSets", reinterpret_cast<PFN_vkVoidFunction>(FreeDescriptorSets)},
+    {"vkFreeMemory", reinterpret_cast<PFN_vkVoidFunction>(FreeMemory)},
+    {"vkGetBufferMemoryRequirements", reinterpret_cast<PFN_vkVoidFunction>(GetBufferMemoryRequirements)},
+    {"vkGetDeviceMemoryCommitment", reinterpret_cast<PFN_vkVoidFunction>(GetDeviceMemoryCommitment)},
+    {"vkGetDeviceProcAddr", reinterpret_cast<PFN_vkVoidFunction>(GetDeviceProcAddr)},
+    {"vkGetDeviceQueue", reinterpret_cast<PFN_vkVoidFunction>(GetDeviceQueue)},
+    {"vkGetEventStatus", reinterpret_cast<PFN_vkVoidFunction>(GetEventStatus)},
+    {"vkGetFenceStatus", reinterpret_cast<PFN_vkVoidFunction>(GetFenceStatus)},
+    {"vkGetImageMemoryRequirements", reinterpret_cast<PFN_vkVoidFunction>(GetImageMemoryRequirements)},
+    {"vkGetImageSparseMemoryRequirements", reinterpret_cast<PFN_vkVoidFunction>(GetImageSparseMemoryRequirements)},
+    {"vkGetImageSubresourceLayout", reinterpret_cast<PFN_vkVoidFunction>(GetImageSubresourceLayout)},
+    {"vkGetPipelineCacheData", reinterpret_cast<PFN_vkVoidFunction>(GetPipelineCacheData)},
+    {"vkGetPipelineCacheSize", reinterpret_cast<PFN_vkVoidFunction>(GetPipelineCacheSize)},
+    {"vkGetQueryPoolResults", reinterpret_cast<PFN_vkVoidFunction>(GetQueryPoolResults)},
+    {"vkGetRenderAreaGranularity", reinterpret_cast<PFN_vkVoidFunction>(GetRenderAreaGranularity)},
+    {"vkInvalidateMappedMemoryRanges", reinterpret_cast<PFN_vkVoidFunction>(InvalidateMappedMemoryRanges)},
+    {"vkMapMemory", reinterpret_cast<PFN_vkVoidFunction>(MapMemory)},
+    {"vkMergePipelineCaches", reinterpret_cast<PFN_vkVoidFunction>(MergePipelineCaches)},
+    {"vkQueueBindSparseBufferMemory", reinterpret_cast<PFN_vkVoidFunction>(QueueBindSparseBufferMemory)},
+    {"vkQueueBindSparseImageMemory", reinterpret_cast<PFN_vkVoidFunction>(QueueBindSparseImageMemory)},
+    {"vkQueueBindSparseImageOpaqueMemory", reinterpret_cast<PFN_vkVoidFunction>(QueueBindSparseImageOpaqueMemory)},
+    {"vkQueueSignalSemaphore", reinterpret_cast<PFN_vkVoidFunction>(QueueSignalSemaphore)},
+    {"vkQueueSubmit", reinterpret_cast<PFN_vkVoidFunction>(QueueSubmit)},
+    {"vkQueueWaitIdle", reinterpret_cast<PFN_vkVoidFunction>(QueueWaitIdle)},
+    {"vkQueueWaitSemaphore", reinterpret_cast<PFN_vkVoidFunction>(QueueWaitSemaphore)},
+    {"vkResetCommandBuffer", reinterpret_cast<PFN_vkVoidFunction>(ResetCommandBuffer)},
+    {"vkResetCommandPool", reinterpret_cast<PFN_vkVoidFunction>(ResetCommandPool)},
+    {"vkResetDescriptorPool", reinterpret_cast<PFN_vkVoidFunction>(ResetDescriptorPool)},
+    {"vkResetEvent", reinterpret_cast<PFN_vkVoidFunction>(ResetEvent)},
+    {"vkResetFences", reinterpret_cast<PFN_vkVoidFunction>(ResetFences)},
+    {"vkSetEvent", reinterpret_cast<PFN_vkVoidFunction>(SetEvent)},
+    {"vkUnmapMemory", reinterpret_cast<PFN_vkVoidFunction>(UnmapMemory)},
+    {"vkUpdateDescriptorSets", reinterpret_cast<PFN_vkVoidFunction>(UpdateDescriptorSets)},
+    {"vkWaitForFences", reinterpret_cast<PFN_vkVoidFunction>(WaitForFences)},
+    // clang-format on
+};
+
+}  // namespace
+
+namespace null_driver {
+
+PFN_vkVoidFunction LookupInstanceProcAddr(const char* name) {
+    return LookupProcAddr(kInstanceProcTbl, name);
+}
+
+PFN_vkVoidFunction LookupDeviceProcAddr(const char* name) {
+    return LookupProcAddr(kDeviceProcTbl, name);
+}
+
+}  // namespace null_driver
diff --git a/vulkan/nulldrv/null_driver_gen.cpp.tmpl b/vulkan/nulldrv/null_driver_gen.cpp.tmpl
new file mode 100644
index 0000000..03a3d96
--- /dev/null
+++ b/vulkan/nulldrv/null_driver_gen.cpp.tmpl
@@ -0,0 +1,97 @@
+{{Include "../api/templates/vulkan_common.tmpl"}}
+{{Global "clang-format" (Strings "clang-format" "-style=file")}}
+{{Macro "DefineGlobals" $}}
+{{$ | Macro "null_driver_gen.cpp" | Format (Global "clang-format") | Write "null_driver_gen.cpp"}}
+
+
+{{/*
+-------------------------------------------------------------------------------
+  Entry point
+-------------------------------------------------------------------------------
+*/}}
+{{define "null_driver_gen.cpp"}}
+/*
+ * Copyright 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */

+// This file is generated. Do not edit manually!
+// To regenerate: $ apic template ../api/vulkan.api null_driver_gen.cpp.tmpl
+// Requires apic from https://android.googlesource.com/platform/tools/gpu/.

+#include <algorithm>
+#include "null_driver.h"

+using namespace null_driver;

+namespace {

+struct NameProcEntry {
+    const char* name;
+    PFN_vkVoidFunction proc;
+};

+template <size_t N>
+PFN_vkVoidFunction LookupProcAddr(const NameProcEntry (&table)[N], const char* name) {
+    auto entry = std::lower_bound(
+        table, table + N, name,
+        [](const NameProcEntry& e, const char* n) { return strcmp(e.name, n) < 0; });
+    if (entry != (table + N) && strcmp(entry->name, name) == 0)
+        return entry->proc;
+    return nullptr;
+}

+const NameProcEntry kInstanceProcTbl[] = {«
+  // clang-format off
+  {{range $f := SortBy (AllCommands $) "FunctionName"}}
+    {{if eq (Macro "Vtbl" $f) "Instance"}}
+      {"{{Macro "FunctionName" $f}}", reinterpret_cast<PFN_vkVoidFunction>({{Macro "FunctionNameNoPrefix" $f}})},
+    {{end}}
+  {{end}}
+  // clang-format on
+»};

+const NameProcEntry kDeviceProcTbl[] = {«
+  // clang-format off
+  {{range $f := SortBy (AllCommands $) "FunctionName"}}
+    {{if eq (Macro "Vtbl" $f) "Device"}}
+      {"{{Macro "FunctionName" $f}}", reinterpret_cast<PFN_vkVoidFunction>({{Macro "FunctionNameNoPrefix" $f}})},
+    {{end}}
+  {{end}}
+  // clang-format on
+»};

+} // namespace

+namespace null_driver {

+PFN_vkVoidFunction LookupInstanceProcAddr(const char* name) {
+    return LookupProcAddr(kInstanceProcTbl, name);
+}

+PFN_vkVoidFunction LookupDeviceProcAddr(const char* name) {
+    return LookupProcAddr(kDeviceProcTbl, name);
+}

+} // namespace null_driver

+{{end}}
+
+
+{{/*
+-------------------------------------------------------------------------------
+  Emits the name of a function without the "vk" prefix.
+-------------------------------------------------------------------------------
+*/}}
+{{define "FunctionNameNoPrefix"}}{{AssertType $ "Function"}}{{TrimPrefix "vk" $.Name}}{{end}}