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vulkan_setup.hpp
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1240 lines (1075 loc) · 44.9 KB
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#pragma once
#include <cstring>
#include <iostream>
#include <stdexcept>
#include <string>
#include <vector>
#ifdef _WIN32
// be sure to use -Wno-ignored-attributes on Windows or the __stdcall will freak
// out when doing the device pass compilation
#define VK_USE_PLATFORM_WIN32_KHR
#endif
#include <vulkan/vulkan.h>
#ifdef _WIN32
// #define WIN32_LEAN_AND_MEAN
// #define NOMINMAX
// #include <windows.h>
// I just can't, in good conscience, bring myself to import all of windows.h
// when we only need 6 void typedefs.
typedef void *HANDLE;
typedef struct HINSTANCE__ *HINSTANCE;
typedef struct HWND__ *HWND;
typedef struct HMONITOR__ *HMONITOR;
typedef struct _SECURITY_ATTRIBUTES SECURITY_ATTRIBUTES;
typedef unsigned long DWORD;
typedef const wchar_t *LPCWSTR;
#include <vulkan/vulkan_win32.h>
#endif
// ---------------------------------------------------------
// PLATFORM ABSTRACTION
// ---------------------------------------------------------
#ifdef _WIN32
const std::vector<const char *> PLATFORM_EXTENSIONS = {
VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME,
VK_KHR_EXTERNAL_MEMORY_WIN32_EXTENSION_NAME,
VK_KHR_EXTERNAL_SEMAPHORE_EXTENSION_NAME,
VK_KHR_EXTERNAL_SEMAPHORE_WIN32_EXTENSION_NAME,
VK_KHR_TIMELINE_SEMAPHORE_EXTENSION_NAME};
const auto PLATFORM_MEM_HANDLE_TYPE =
VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_BIT;
const auto PLATFORM_SEM_HANDLE_TYPE =
VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT;
#else
const std::vector<const char *> PLATFORM_EXTENSIONS = {
VK_KHR_EXTERNAL_MEMORY_EXTENSION_NAME,
VK_KHR_EXTERNAL_MEMORY_FD_EXTENSION_NAME,
VK_KHR_EXTERNAL_SEMAPHORE_EXTENSION_NAME,
VK_KHR_EXTERNAL_SEMAPHORE_FD_EXTENSION_NAME,
VK_KHR_TIMELINE_SEMAPHORE_EXTENSION_NAME};
const auto PLATFORM_MEM_HANDLE_TYPE =
VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
const auto PLATFORM_SEM_HANDLE_TYPE =
VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
#endif
// ---------------------------------------------------------
// VULKAN DEBUG CALLBACK
// ---------------------------------------------------------
static VKAPI_ATTR VkBool32 VKAPI_CALL debugUtilsMessageCallback(
VkDebugUtilsMessageSeverityFlagBitsEXT messageSeverity,
[[maybe_unused]] VkDebugUtilsMessageTypeFlagsEXT messageType,
const VkDebugUtilsMessengerCallbackDataEXT *pCallbackData,
[[maybe_unused]] void *pUserData) {
if (messageSeverity & (VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT)) {
std::cerr << "[Vulkan Validation Layer]: " << pCallbackData->pMessage
<< std::endl;
}
return VK_FALSE;
};
// ---------------------------------------------------------
// VULKAN HELPERS & TYPES
// ---------------------------------------------------------
struct VulkanContext {
VkInstance instance;
VkPhysicalDevice physicalDevice;
VkDevice device;
VkQueue queue;
uint32_t queueFamilyIndex;
VkDebugUtilsMessengerEXT debugMessenger;
};
struct ImageResources {
VkImage image;
VkDeviceMemory memory;
VkDeviceSize allocationSize;
VkExtent3D extent;
};
struct BufferResources {
VkBuffer buffer;
VkDeviceMemory memory;
VkDeviceSize size;
};
#define VK_CHECK(f) \
{ \
VkResult __vk_res = (f); \
if (__vk_res != VK_SUCCESS) { \
std::cerr << "Vulkan Error at line " << __LINE__ << ": " << __vk_res \
<< std::endl; \
throw std::runtime_error("Vulkan Error"); \
} \
}
// ---------------------------------------------------------
// FORMAT MAPPING & STRINGS (Unchanged)
// ---------------------------------------------------------
inline std::string getFormatString(VkFormat fmt) {
switch (fmt) {
case VK_FORMAT_R32_SFLOAT:
return "VK_FORMAT_R32_SFLOAT";
case VK_FORMAT_R32G32_SFLOAT:
return "VK_FORMAT_R32G32_SFLOAT";
case VK_FORMAT_R32G32B32A32_SFLOAT:
return "VK_FORMAT_R32G32B32A32_SFLOAT";
case VK_FORMAT_R16_SFLOAT:
return "VK_FORMAT_R16_SFLOAT";
case VK_FORMAT_R16G16_SFLOAT:
return "VK_FORMAT_R16G16_SFLOAT";
case VK_FORMAT_R16G16B16A16_SFLOAT:
return "VK_FORMAT_R16G16B16A16_SFLOAT";
case VK_FORMAT_R32_SINT:
return "VK_FORMAT_R32_SINT";
case VK_FORMAT_R32G32_SINT:
return "VK_FORMAT_R32G32_SINT";
case VK_FORMAT_R32G32B32A32_SINT:
return "VK_FORMAT_R32G32B32A32_SINT";
case VK_FORMAT_R32_UINT:
return "VK_FORMAT_R32_UINT";
case VK_FORMAT_R32G32_UINT:
return "VK_FORMAT_R32G32_UINT";
case VK_FORMAT_R32G32B32A32_UINT:
return "VK_FORMAT_R32G32B32A32_UINT";
case VK_FORMAT_R16_SINT:
return "VK_FORMAT_R16_SINT";
case VK_FORMAT_R16G16_SINT:
return "VK_FORMAT_R16G16_SINT";
case VK_FORMAT_R16G16B16A16_SINT:
return "VK_FORMAT_R16G16B16A16_SINT";
case VK_FORMAT_R16_UINT:
return "VK_FORMAT_R16_UINT";
case VK_FORMAT_R16G16_UINT:
return "VK_FORMAT_R16G16_UINT";
case VK_FORMAT_R16G16B16A16_UINT:
return "VK_FORMAT_R16G16B16A16_UINT";
case VK_FORMAT_R8_SINT:
return "VK_FORMAT_R8_SINT";
case VK_FORMAT_R8G8_SINT:
return "VK_FORMAT_R8G8_SINT";
case VK_FORMAT_R8G8B8A8_SINT:
return "VK_FORMAT_R8G8B8A8_SINT";
case VK_FORMAT_R8_UINT:
return "VK_FORMAT_R8_UINT";
case VK_FORMAT_R8G8_UINT:
return "VK_FORMAT_R8G8_UINT";
case VK_FORMAT_R8G8B8A8_UINT:
return "VK_FORMAT_R8G8B8A8_UINT";
case VK_FORMAT_R8_UNORM:
return "VK_FORMAT_R8_UNORM";
case VK_FORMAT_R8G8_UNORM:
return "VK_FORMAT_R8G8_UNORM";
case VK_FORMAT_R8G8B8A8_UNORM:
return "VK_FORMAT_R8G8B8A8_UNORM";
default:
return "UNKNOWN_FORMAT (" + std::to_string(fmt) + ")";
}
}
template <typename T> VkFormat getVulkanFormat(int channels);
template <> inline VkFormat getVulkanFormat<float>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R32_SFLOAT;
case 2:
return VK_FORMAT_R32G32_SFLOAT;
case 4:
return VK_FORMAT_R32G32B32A32_SFLOAT;
default:
throw std::runtime_error("Unsupported channels for float");
}
}
template <> inline VkFormat getVulkanFormat<int32_t>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R32_SINT;
case 2:
return VK_FORMAT_R32G32_SINT;
case 4:
return VK_FORMAT_R32G32B32A32_SINT;
default:
throw std::runtime_error("Unsupported channels for int32");
}
}
template <> inline VkFormat getVulkanFormat<uint32_t>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R32_UINT;
case 2:
return VK_FORMAT_R32G32_UINT;
case 4:
return VK_FORMAT_R32G32B32A32_UINT;
default:
throw std::runtime_error("Unsupported channels for uint32");
}
}
template <> inline VkFormat getVulkanFormat<int16_t>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R16_SINT;
case 2:
return VK_FORMAT_R16G16_SINT;
case 4:
return VK_FORMAT_R16G16B16A16_SINT;
default:
throw std::runtime_error("Unsupported channels for int16");
}
}
template <> inline VkFormat getVulkanFormat<uint16_t>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R16_UINT;
case 2:
return VK_FORMAT_R16G16_UINT;
case 4:
return VK_FORMAT_R16G16B16A16_UINT;
default:
throw std::runtime_error("Unsupported channels for uint16");
}
}
template <> inline VkFormat getVulkanFormat<uint8_t>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R8_UINT;
case 2:
return VK_FORMAT_R8G8_UINT;
case 4:
return VK_FORMAT_R8G8B8A8_UINT;
default:
throw std::runtime_error("Unsupported channels for uint8");
}
}
template <> inline VkFormat getVulkanFormat<int8_t>(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R8_SINT;
case 2:
return VK_FORMAT_R8G8_SINT;
case 4:
return VK_FORMAT_R8G8B8A8_SINT;
default:
throw std::runtime_error("Unsupported channels for int8");
}
}
inline VkFormat getUnorm8Format(int channels) {
switch (channels) {
case 1:
return VK_FORMAT_R8_UNORM;
case 2:
return VK_FORMAT_R8G8_UNORM;
case 4:
return VK_FORMAT_R8G8B8A8_UNORM;
default:
throw std::runtime_error("Unsupported channels for UNORM8");
}
}
// ---------------------------------------------------------
// some test utils
// ---------------------------------------------------------
// Generates a deterministic test value based on position and channel
template <typename T>
T generateTestValue(size_t index, int channel, size_t rangeMax) {
if constexpr (std::is_floating_point_v<T>) {
// Float: 0.0 -> 1.0 gradient with channel offset
float val = (float)index / (float)(rangeMax > 1 ? rangeMax - 1 : 1);
return static_cast<T>(val + (float)channel * 0.1f);
} else {
// Integer: Wrapping pattern to avoid overflow
return static_cast<T>((index + channel * 10) % 127);
}
}
// Compares values with appropriate tolerance for Floats
template <typename T> bool checkValue(T actual, T expected) {
if constexpr (std::is_floating_point_v<T>) {
return std::abs(actual - expected) < 0.01f;
} else {
return actual == expected;
}
}
// ---------------------------------------------------------
// Boilerplate
// ---------------------------------------------------------
size_t getRowPitch(VulkanContext &ctx, VkImage image) {
VkSubresourceLayout layout;
VkImageSubresource subResource{VK_IMAGE_ASPECT_COLOR_BIT, 0, 0};
vkGetImageSubresourceLayout(ctx.device, image, &subResource, &layout);
return layout.rowPitch;
}
inline uint32_t findMemoryType(VkPhysicalDevice physicalDevice,
uint32_t typeFilter,
VkMemoryPropertyFlags properties) {
VkPhysicalDeviceMemoryProperties memProperties;
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memProperties);
for (uint32_t i = 0; i < memProperties.memoryTypeCount; i++) {
if ((typeFilter & (1 << i)) && (memProperties.memoryTypes[i].propertyFlags &
properties) == properties) {
return i;
}
}
throw std::runtime_error("failed to find suitable memory type!");
}
inline VulkanContext createVulkanContext() {
VulkanContext ctx;
VkApplicationInfo appInfo{};
appInfo.sType = VK_STRUCTURE_TYPE_APPLICATION_INFO;
appInfo.apiVersion = VK_API_VERSION_1_2;
std::vector<const char *> instanceExtensions;
uint32_t instanceExtensionCount = 0;
VK_CHECK(vkEnumerateInstanceExtensionProperties(
nullptr, &instanceExtensionCount, nullptr));
std::vector<VkExtensionProperties> availableInstancneExtensions(
instanceExtensionCount);
VK_CHECK(vkEnumerateInstanceExtensionProperties(
nullptr, &instanceExtensionCount, availableInstancneExtensions.data()));
bool debugUtils = false;
for (auto &extension : availableInstancneExtensions) {
if (strcmp(extension.extensionName, VK_EXT_DEBUG_UTILS_EXTENSION_NAME) ==
0) {
debugUtils = true;
instanceExtensions.push_back(VK_EXT_DEBUG_UTILS_EXTENSION_NAME);
break;
}
}
if (!debugUtils) {
throw std::runtime_error("failed to find Vulkan debug utils extension!");
}
const char *validationLayerName = "VK_LAYER_KHRONOS_validation";
uint32_t instanceLayerCount;
VK_CHECK(vkEnumerateInstanceLayerProperties(&instanceLayerCount, nullptr));
std::vector<VkLayerProperties> instanceLayerProperties(instanceLayerCount);
VK_CHECK(vkEnumerateInstanceLayerProperties(&instanceLayerCount,
instanceLayerProperties.data()));
bool validationPresent = false;
for (auto &layerProps : instanceLayerProperties) {
if (std::strcmp(layerProps.layerName, validationLayerName) == 0) {
validationPresent = true;
break;
}
}
if (!validationPresent) {
throw std::runtime_error("failed to find Vulkan validation layer!");
}
VkInstanceCreateInfo createInfo{};
createInfo.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
createInfo.pApplicationInfo = &appInfo;
createInfo.ppEnabledLayerNames = &validationLayerName;
createInfo.enabledLayerCount = 1;
createInfo.enabledExtensionCount = (uint32_t)instanceExtensions.size();
createInfo.ppEnabledExtensionNames = instanceExtensions.data();
VkDebugUtilsMessengerCreateInfoEXT debugUtilsMessengerInfo{};
debugUtilsMessengerInfo.sType =
VK_STRUCTURE_TYPE_DEBUG_UTILS_MESSENGER_CREATE_INFO_EXT;
debugUtilsMessengerInfo.messageSeverity =
VK_DEBUG_UTILS_MESSAGE_SEVERITY_WARNING_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_SEVERITY_ERROR_BIT_EXT;
debugUtilsMessengerInfo.messageType =
VK_DEBUG_UTILS_MESSAGE_TYPE_GENERAL_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_TYPE_VALIDATION_BIT_EXT |
VK_DEBUG_UTILS_MESSAGE_TYPE_PERFORMANCE_BIT_EXT;
debugUtilsMessengerInfo.pfnUserCallback = debugUtilsMessageCallback;
// Chain the debugUtilsMessengerInfo into the instance to capture events
// that occur while creating the instance itself. This debug util messangegr
// will be alive only during instance creation.
createInfo.pNext = &debugUtilsMessengerInfo;
VK_CHECK(vkCreateInstance(&createInfo, nullptr, &ctx.instance));
// Create a persistent debug messenger that stays alive for the application's
// lifetime to capture all subsequent events.
auto vkCreateDebugUtilsMessengerFuncPtr =
(PFN_vkCreateDebugUtilsMessengerEXT)vkGetInstanceProcAddr(
ctx.instance, "vkCreateDebugUtilsMessengerEXT");
if (vkCreateDebugUtilsMessengerFuncPtr != nullptr) {
VK_CHECK(vkCreateDebugUtilsMessengerFuncPtr(
ctx.instance, &debugUtilsMessengerInfo, nullptr, &ctx.debugMessenger));
} else {
throw std::runtime_error(
"Failed to fetch vkCreateDebugUtilsMessengerEXT function pointer!");
}
uint32_t deviceCount = 0;
vkEnumeratePhysicalDevices(ctx.instance, &deviceCount, nullptr);
std::vector<VkPhysicalDevice> devices(deviceCount);
vkEnumeratePhysicalDevices(ctx.instance, &deviceCount, devices.data());
ctx.physicalDevice = devices[0];
uint32_t queueFamilyCount = 0;
vkGetPhysicalDeviceQueueFamilyProperties(ctx.physicalDevice,
&queueFamilyCount, nullptr);
std::vector<VkQueueFamilyProperties> queueFamilies(queueFamilyCount);
vkGetPhysicalDeviceQueueFamilyProperties(
ctx.physicalDevice, &queueFamilyCount, queueFamilies.data());
ctx.queueFamilyIndex = -1;
for (uint32_t i = 0; i < queueFamilyCount; i++) {
if (queueFamilies[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
ctx.queueFamilyIndex = i;
break;
}
}
VkDeviceQueueCreateInfo queueCreateInfo{};
queueCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queueCreateInfo.queueFamilyIndex = ctx.queueFamilyIndex;
queueCreateInfo.queueCount = 1;
float queuePriority = 1.0f;
queueCreateInfo.pQueuePriorities = &queuePriority;
// Enable timeline semaphore feature (Vulkan 1.2 core)
VkPhysicalDeviceTimelineSemaphoreFeatures timelineFeatures{};
timelineFeatures.sType =
VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_TIMELINE_SEMAPHORE_FEATURES;
timelineFeatures.timelineSemaphore = VK_TRUE;
VkDeviceCreateInfo deviceCreateInfo{};
deviceCreateInfo.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
deviceCreateInfo.pNext = &timelineFeatures;
deviceCreateInfo.pQueueCreateInfos = &queueCreateInfo;
deviceCreateInfo.queueCreateInfoCount = 1;
// UPDATED: Use dynamic platform extensions
deviceCreateInfo.enabledExtensionCount =
static_cast<uint32_t>(PLATFORM_EXTENSIONS.size());
deviceCreateInfo.ppEnabledExtensionNames = PLATFORM_EXTENSIONS.data();
VK_CHECK(vkCreateDevice(ctx.physicalDevice, &deviceCreateInfo, nullptr,
&ctx.device));
vkGetDeviceQueue(ctx.device, ctx.queueFamilyIndex, 0, &ctx.queue);
return ctx;
}
inline void cleanupVulkanContext(VulkanContext &ctx) {
vkDestroyDevice(ctx.device, nullptr);
auto vkDestroyDebugUtilsMessengerFuncPtr =
(PFN_vkDestroyDebugUtilsMessengerEXT)vkGetInstanceProcAddr(
ctx.instance, "vkDestroyDebugUtilsMessengerEXT");
if (vkDestroyDebugUtilsMessengerFuncPtr != nullptr) {
vkDestroyDebugUtilsMessengerFuncPtr(ctx.instance, ctx.debugMessenger,
nullptr);
}
vkDestroyInstance(ctx.instance, nullptr);
}
inline ImageResources createExportableImage(
VulkanContext &ctx, VkExtent3D extent, VkFormat format, VkImageType type,
VkImageTiling tiling = VK_IMAGE_TILING_OPTIMAL,
VkImageUsageFlags usage = VK_IMAGE_USAGE_STORAGE_BIT |
VK_IMAGE_USAGE_SAMPLED_BIT |
VK_IMAGE_USAGE_TRANSFER_SRC_BIT |
VK_IMAGE_USAGE_TRANSFER_DST_BIT) {
VkImageCreateInfo imageInfo = {VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO};
imageInfo.imageType = type;
imageInfo.extent = extent;
imageInfo.mipLevels = 1;
imageInfo.arrayLayers = 1;
imageInfo.format = format;
imageInfo.tiling = tiling;
imageInfo.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
imageInfo.usage = usage;
imageInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
imageInfo.samples = VK_SAMPLE_COUNT_1_BIT;
// Export Memory Support (Image Side)
VkExternalMemoryImageCreateInfo extMemInfo = {
VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_IMAGE_CREATE_INFO};
extMemInfo.handleTypes = PLATFORM_MEM_HANDLE_TYPE;
imageInfo.pNext = &extMemInfo;
ImageResources res;
res.extent = extent;
VK_CHECK(vkCreateImage(ctx.device, &imageInfo, nullptr, &res.image));
VkMemoryRequirements memRequirements;
vkGetImageMemoryRequirements(ctx.device, res.image, &memRequirements);
// Export Memory Allocation (Memory Side)
VkExportMemoryAllocateInfo exportAllocInfo = {
VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO};
exportAllocInfo.handleTypes = PLATFORM_MEM_HANDLE_TYPE;
// Dedicated Allocation (Required for Windows Interop)
VkMemoryDedicatedAllocateInfo dedicatedAllocInfo = {
VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO};
dedicatedAllocInfo.image = res.image;
dedicatedAllocInfo.buffer = VK_NULL_HANDLE;
dedicatedAllocInfo.pNext = &exportAllocInfo; // Chain export info
VkMemoryAllocateInfo allocInfo = {VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO};
allocInfo.pNext = &dedicatedAllocInfo; // Chain Dedicated info
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex =
findMemoryType(ctx.physicalDevice, memRequirements.memoryTypeBits,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
res.allocationSize = allocInfo.allocationSize;
VK_CHECK(vkAllocateMemory(ctx.device, &allocInfo, nullptr, &res.memory));
VK_CHECK(vkBindImageMemory(ctx.device, res.image, res.memory, 0));
return res;
}
inline VkSemaphore createExportableSemaphore(VulkanContext &ctx) {
VkExportSemaphoreCreateInfo exportInfo{};
exportInfo.sType = VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO;
exportInfo.handleTypes = PLATFORM_SEM_HANDLE_TYPE;
VkSemaphoreCreateInfo semaphoreInfo{};
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
semaphoreInfo.pNext = &exportInfo;
VkSemaphore semaphore;
VK_CHECK(vkCreateSemaphore(ctx.device, &semaphoreInfo, nullptr, &semaphore));
return semaphore;
}
inline VkSemaphore
createExportableTimelineSemaphore(VulkanContext &ctx,
uint64_t initialValue = 0) {
VkSemaphoreTypeCreateInfo typeInfo{};
typeInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_TYPE_CREATE_INFO;
typeInfo.semaphoreType = VK_SEMAPHORE_TYPE_TIMELINE;
typeInfo.initialValue = initialValue;
VkExportSemaphoreCreateInfo exportInfo{};
exportInfo.sType = VK_STRUCTURE_TYPE_EXPORT_SEMAPHORE_CREATE_INFO;
exportInfo.handleTypes = PLATFORM_SEM_HANDLE_TYPE;
exportInfo.pNext = &typeInfo;
VkSemaphoreCreateInfo semaphoreInfo{};
semaphoreInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_CREATE_INFO;
semaphoreInfo.pNext = &exportInfo;
VkSemaphore semaphore;
VK_CHECK(vkCreateSemaphore(ctx.device, &semaphoreInfo, nullptr, &semaphore));
return semaphore;
}
// ---------------------------------------------------------
// BUFFER HELPERS
// ---------------------------------------------------------
inline BufferResources createExportableBuffer(
VulkanContext &ctx, VkDeviceSize size, VkBufferUsageFlags usage,
VkExternalMemoryHandleTypeFlagBits handleType = PLATFORM_MEM_HANDLE_TYPE) {
VkExternalMemoryBufferCreateInfo extMemInfo{};
extMemInfo.sType = VK_STRUCTURE_TYPE_EXTERNAL_MEMORY_BUFFER_CREATE_INFO;
extMemInfo.handleTypes = handleType;
VkBufferCreateInfo bufferInfo{};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.pNext = &extMemInfo;
bufferInfo.size = size;
bufferInfo.usage = usage;
bufferInfo.sharingMode = VK_SHARING_MODE_EXCLUSIVE;
BufferResources res;
res.size = size;
VK_CHECK(vkCreateBuffer(ctx.device, &bufferInfo, nullptr, &res.buffer));
VkMemoryRequirements memRequirements;
vkGetBufferMemoryRequirements(ctx.device, res.buffer, &memRequirements);
VkExportMemoryAllocateInfo exportAllocInfo{};
exportAllocInfo.sType = VK_STRUCTURE_TYPE_EXPORT_MEMORY_ALLOCATE_INFO;
exportAllocInfo.handleTypes = handleType;
VkMemoryDedicatedAllocateInfo dedicatedAllocInfo{};
dedicatedAllocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_DEDICATED_ALLOCATE_INFO;
dedicatedAllocInfo.buffer = res.buffer;
dedicatedAllocInfo.pNext = &exportAllocInfo;
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.pNext = &dedicatedAllocInfo;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex =
findMemoryType(ctx.physicalDevice, memRequirements.memoryTypeBits,
VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
VK_CHECK(vkAllocateMemory(ctx.device, &allocInfo, nullptr, &res.memory));
VK_CHECK(vkBindBufferMemory(ctx.device, res.buffer, res.memory, 0));
return res;
}
inline BufferResources createStagingBuffer(VulkanContext &ctx,
VkDeviceSize size,
VkBufferUsageFlags usage) {
BufferResources res;
res.size = size;
VkBufferCreateInfo bufferInfo{};
bufferInfo.sType = VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = size;
bufferInfo.usage = usage;
VK_CHECK(vkCreateBuffer(ctx.device, &bufferInfo, nullptr, &res.buffer));
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(ctx.device, res.buffer, &req);
VkMemoryAllocateInfo allocInfo{};
allocInfo.sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = req.size;
allocInfo.memoryTypeIndex =
findMemoryType(ctx.physicalDevice, req.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
VK_CHECK(vkAllocateMemory(ctx.device, &allocInfo, nullptr, &res.memory));
VK_CHECK(vkBindBufferMemory(ctx.device, res.buffer, res.memory, 0));
return res;
}
inline void cleanupBuffer(VulkanContext &ctx, BufferResources &res) {
vkDestroyBuffer(ctx.device, res.buffer, nullptr);
vkFreeMemory(ctx.device, res.memory, nullptr);
}
// ---------------------------------------------------------
// PLATFORM SPECIFIC GETTERS
// ---------------------------------------------------------
#ifdef _WIN32
inline HANDLE
getMemHandle(VulkanContext &ctx, VkDeviceMemory memory,
VkExternalMemoryHandleTypeFlagBits handleType =
VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_BIT) {
VkMemoryGetWin32HandleInfoKHR getHandleInfo{};
getHandleInfo.sType = VK_STRUCTURE_TYPE_MEMORY_GET_WIN32_HANDLE_INFO_KHR;
getHandleInfo.memory = memory;
getHandleInfo.handleType = handleType;
HANDLE handle;
auto func = (PFN_vkGetMemoryWin32HandleKHR)vkGetDeviceProcAddr(
ctx.device, "vkGetMemoryWin32HandleKHR");
if (!func)
throw std::runtime_error("Failed to load vkGetMemoryWin32HandleKHR");
VK_CHECK(func(ctx.device, &getHandleInfo, &handle));
return handle;
}
inline HANDLE getSemaphoreHandle(VulkanContext &ctx, VkSemaphore semaphore) {
VkSemaphoreGetWin32HandleInfoKHR getHandleInfo{};
getHandleInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_GET_WIN32_HANDLE_INFO_KHR;
getHandleInfo.semaphore = semaphore;
getHandleInfo.handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_WIN32_BIT;
HANDLE handle;
auto func = (PFN_vkGetSemaphoreWin32HandleKHR)vkGetDeviceProcAddr(
ctx.device, "vkGetSemaphoreWin32HandleKHR");
if (!func)
throw std::runtime_error("Failed to load vkGetSemaphoreWin32HandleKHR");
VK_CHECK(func(ctx.device, &getHandleInfo, &handle));
return handle;
}
// Stubs for compile compat if you have sloppy ifdefs elsewhere
inline int getMemFd(VulkanContext &ctx, VkDeviceMemory memory) {
throw std::runtime_error("getMemFd called on Windows!");
}
inline int getMemFd(VulkanContext &ctx, VkDeviceMemory memory,
VkExternalMemoryHandleTypeFlagBits) {
throw std::runtime_error("getMemFd called on Windows!");
}
inline int getSemaphoreFd(VulkanContext &ctx, VkSemaphore semaphore) {
throw std::runtime_error("getSemaphoreFd called on Windows!");
}
#else
// LINUX IMPLEMENTATION
inline int getMemFd(VulkanContext &ctx, VkDeviceMemory memory) {
VkMemoryGetFdInfoKHR getFdInfo{};
getFdInfo.sType = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR;
getFdInfo.memory = memory;
getFdInfo.handleType = VK_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD_BIT;
int fd;
auto func =
(PFN_vkGetMemoryFdKHR)vkGetDeviceProcAddr(ctx.device, "vkGetMemoryFdKHR");
if (!func)
throw std::runtime_error("Failed to load vkGetMemoryFdKHR");
VK_CHECK(func(ctx.device, &getFdInfo, &fd));
return fd;
}
// Overload with explicit handle type (for DMA_BUF support)
inline int getMemFd(VulkanContext &ctx, VkDeviceMemory memory,
VkExternalMemoryHandleTypeFlagBits handleType) {
VkMemoryGetFdInfoKHR getFdInfo{};
getFdInfo.sType = VK_STRUCTURE_TYPE_MEMORY_GET_FD_INFO_KHR;
getFdInfo.memory = memory;
getFdInfo.handleType = handleType;
int fd;
auto func =
(PFN_vkGetMemoryFdKHR)vkGetDeviceProcAddr(ctx.device, "vkGetMemoryFdKHR");
if (!func)
throw std::runtime_error("Failed to load vkGetMemoryFdKHR");
VK_CHECK(func(ctx.device, &getFdInfo, &fd));
return fd;
}
inline int getSemaphoreFd(VulkanContext &ctx, VkSemaphore semaphore) {
VkSemaphoreGetFdInfoKHR getFdInfo{};
getFdInfo.sType = VK_STRUCTURE_TYPE_SEMAPHORE_GET_FD_INFO_KHR;
getFdInfo.semaphore = semaphore;
getFdInfo.handleType = VK_EXTERNAL_SEMAPHORE_HANDLE_TYPE_OPAQUE_FD_BIT;
int fd;
auto func = (PFN_vkGetSemaphoreFdKHR)vkGetDeviceProcAddr(
ctx.device, "vkGetSemaphoreFdKHR");
if (!func)
throw std::runtime_error("Failed to load vkGetSemaphoreFdKHR");
VK_CHECK(func(ctx.device, &getFdInfo, &fd));
return fd;
}
#endif
// ---------------------------------------------------------
// HELPER: Upload Data (Host -> Staging -> Device)
// ---------------------------------------------------------
template <typename Functor>
void uploadImage(VulkanContext &ctx, ImageResources &imgRes, int channels,
VkSemaphore signalSemaphore, Functor generator) {
uint32_t width = imgRes.extent.width;
uint32_t height = imgRes.extent.height;
uint32_t depth = imgRes.extent.depth;
size_t totalPixels = width * height * depth;
// 1. Create Staging Buffer
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkDeviceSize dataSize = totalPixels * channels * 4; // Max safe size
VkBufferCreateInfo bi = {VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO};
bi.size = dataSize;
bi.usage = VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
VK_CHECK(vkCreateBuffer(ctx.device, &bi, nullptr, &stagingBuffer));
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(ctx.device, stagingBuffer, &req);
VkMemoryAllocateInfo ai = {VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO};
ai.allocationSize = req.size;
ai.memoryTypeIndex = findMemoryType(ctx.physicalDevice, req.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
VK_CHECK(vkAllocateMemory(ctx.device, &ai, nullptr, &stagingMemory));
VK_CHECK(vkBindBufferMemory(ctx.device, stagingBuffer, stagingMemory, 0));
// 2. Map and Fill
void *data;
VK_CHECK(vkMapMemory(ctx.device, stagingMemory, 0, dataSize, 0, &data));
using T = decltype(generator(0, 0));
T *ptr = static_cast<T *>(data);
for (size_t i = 0; i < totalPixels; ++i) {
for (int c = 0; c < channels; ++c) {
ptr[i * channels + c] = generator(i, c);
}
}
vkUnmapMemory(ctx.device, stagingMemory);
// 3. Command Buffer
VkCommandPoolCreateInfo poolInfo = {
VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO};
poolInfo.queueFamilyIndex = ctx.queueFamilyIndex;
VkCommandPool pool;
VK_CHECK(vkCreateCommandPool(ctx.device, &poolInfo, nullptr, &pool));
VkCommandBuffer cmd;
VkCommandBufferAllocateInfo ca = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO};
ca.commandPool = pool;
ca.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
ca.commandBufferCount = 1;
vkAllocateCommandBuffers(ctx.device, &ca, &cmd);
VkCommandBufferBeginInfo beginInfo = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO};
vkBeginCommandBuffer(cmd, &beginInfo);
VkImageMemoryBarrier bar1 = {VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER};
bar1.oldLayout = VK_IMAGE_LAYOUT_UNDEFINED;
bar1.newLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
bar1.image = imgRes.image;
bar1.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
bar1.srcAccessMask = 0;
bar1.dstAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
vkCmdPipelineBarrier(cmd, VK_PIPELINE_STAGE_TOP_OF_PIPE_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0,
nullptr, 1, &bar1);
VkBufferImageCopy region = {};
region.imageSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1};
region.imageExtent = imgRes.extent; // Uses the 3D extent automatically
vkCmdCopyBufferToImage(cmd, stagingBuffer, imgRes.image,
VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, ®ion);
VkImageMemoryBarrier bar2 = bar1;
bar2.oldLayout = VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL;
bar2.newLayout = VK_IMAGE_LAYOUT_GENERAL;
bar2.srcAccessMask = VK_ACCESS_TRANSFER_WRITE_BIT;
bar2.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_MEMORY_WRITE_BIT;
vkCmdPipelineBarrier(cmd, VK_PIPELINE_STAGE_TRANSFER_BIT,
VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0, nullptr, 0,
nullptr, 1, &bar2);
vkEndCommandBuffer(cmd);
VkSubmitInfo si = {VK_STRUCTURE_TYPE_SUBMIT_INFO};
si.commandBufferCount = 1;
si.pCommandBuffers = &cmd;
if (signalSemaphore != VK_NULL_HANDLE) {
si.signalSemaphoreCount = 1;
si.pSignalSemaphores = &signalSemaphore;
}
vkQueueSubmit(ctx.queue, 1, &si, VK_NULL_HANDLE);
vkQueueWaitIdle(ctx.queue);
vkDestroyCommandPool(ctx.device, pool, nullptr);
vkDestroyBuffer(ctx.device, stagingBuffer, nullptr);
vkFreeMemory(ctx.device, stagingMemory, nullptr);
}
// ---------------------------------------------------------
// HELPER: Verify Data (Device -> Staging -> Host)
// ---------------------------------------------------------
template <typename Functor>
bool verifyImage(VulkanContext &ctx, ImageResources &imgRes, int channels,
VkSemaphore waitSemaphore, Functor expectedGenerator) {
uint32_t width = imgRes.extent.width;
uint32_t height = imgRes.extent.height;
uint32_t depth = imgRes.extent.depth;
// Dimensions Check
if (width == 0 || height == 0 || depth == 0) {
std::cerr << "[FATAL] verifyImage: Invalid Dimensions " << width << "x"
<< height << std::endl;
return false;
}
size_t totalPixels = width * height * depth;
// Create Staging Buffer
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkDeviceSize dataSize = totalPixels * channels * 4;
VkBufferCreateInfo bi = {VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO};
bi.size = dataSize;
bi.usage = VK_BUFFER_USAGE_TRANSFER_DST_BIT;
VK_CHECK(vkCreateBuffer(ctx.device, &bi, nullptr, &stagingBuffer));
VkMemoryRequirements req;
vkGetBufferMemoryRequirements(ctx.device, stagingBuffer, &req);
VkMemoryAllocateInfo ai = {VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO};
ai.allocationSize = req.size;
ai.memoryTypeIndex = findMemoryType(ctx.physicalDevice, req.memoryTypeBits,
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
VK_CHECK(vkAllocateMemory(ctx.device, &ai, nullptr, &stagingMemory));
VK_CHECK(vkBindBufferMemory(ctx.device, stagingBuffer, stagingMemory, 0));
// Command Buffer
VkCommandPoolCreateInfo poolInfo = {
VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO};
poolInfo.queueFamilyIndex = ctx.queueFamilyIndex;
VkCommandPool pool;
VK_CHECK(vkCreateCommandPool(ctx.device, &poolInfo, nullptr, &pool));
VkCommandBuffer cmd;
VkCommandBufferAllocateInfo ca = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO};
ca.commandPool = pool;
ca.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY;
ca.commandBufferCount = 1;
vkAllocateCommandBuffers(ctx.device, &ca, &cmd);
VkCommandBufferBeginInfo beginInfo = {
VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO};
vkBeginCommandBuffer(cmd, &beginInfo);
// Safety Barrier: Ensure writes from SYCL (External) are visible before
// transfer
VkImageMemoryBarrier barrier = {VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER};
barrier.oldLayout = VK_IMAGE_LAYOUT_GENERAL; // Assume SYCL left it in GENERAL
barrier.newLayout = VK_IMAGE_LAYOUT_GENERAL; // We keep it in GENERAL
barrier.srcAccessMask = VK_ACCESS_MEMORY_WRITE_BIT; // Wait for any writes
barrier.dstAccessMask = VK_ACCESS_TRANSFER_READ_BIT; // Ready for us to read
barrier.image = imgRes.image;
barrier.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
vkCmdPipelineBarrier(cmd, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT,
VK_PIPELINE_STAGE_TRANSFER_BIT, 0, 0, nullptr, 0,
nullptr, 1, &barrier);
// Copy
VkBufferImageCopy region = {};
region.imageSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1};
region.imageExtent = imgRes.extent;
vkCmdCopyImageToBuffer(cmd, imgRes.image, VK_IMAGE_LAYOUT_GENERAL,
stagingBuffer, 1, ®ion);
vkEndCommandBuffer(cmd);
// Submit
VkSubmitInfo si = {VK_STRUCTURE_TYPE_SUBMIT_INFO};
si.commandBufferCount = 1;
si.pCommandBuffers = &cmd;
std::vector<VkPipelineStageFlags> waitStages = {
VK_PIPELINE_STAGE_TRANSFER_BIT};
if (waitSemaphore != VK_NULL_HANDLE) {
si.waitSemaphoreCount = 1;
si.pWaitSemaphores = &waitSemaphore;
si.pWaitDstStageMask = waitStages.data();
}
vkQueueSubmit(ctx.queue, 1, &si, VK_NULL_HANDLE);
vkQueueWaitIdle(ctx.queue);
// Verify Data
void *data;
vkMapMemory(ctx.device, stagingMemory, 0, dataSize, 0, &data);
using T = decltype(expectedGenerator(0, 0));
T *ptr = static_cast<T *>(data);
bool passed = true;
int errors = 0;
for (size_t i = 0; i < totalPixels; ++i) {
for (int c = 0; c < channels; ++c) {
T actual = ptr[i * channels + c];
T expected = expectedGenerator(i, c);
bool match = false;
if constexpr (std::is_floating_point_v<T>) {
match = std::abs((float)actual - (float)expected) < 0.05f;
} else {
match = (actual == expected);
}
if (!match) {
passed = false;
if (errors++ < 5)
std::cout << "Mismatch at " << i << " ch:" << c
<< " Got: " << (double)actual
<< " Exp: " << (double)expected << std::endl;
}
}
}
vkUnmapMemory(ctx.device, stagingMemory);
vkDestroyCommandPool(ctx.device, pool, nullptr);
vkDestroyBuffer(ctx.device, stagingBuffer, nullptr);
vkFreeMemory(ctx.device, stagingMemory, nullptr);
return passed;
}
template <typename T>
bool uploadAndVerify(VulkanContext &ctx, ImageResources &imgRes,
VkSemaphore signalSemaphore = VK_NULL_HANDLE,
int channels = 4) {
size_t texWidth = imgRes.extent.width;
size_t texHeight = imgRes.extent.height;