ughghghgh

src/config/config.hpp

@@ -0,0 +1,34 @@
+#pragma once
+
+#include <array>
+#include <vulkan/vulkan.hpp>
+
+#include "../core/types.hpp"
+
+namespace config {
+
+  // Window settings
+  constexpr i32 WIDTH  = 1920;
+  constexpr i32 HEIGHT = 1080;
+
+  // Vulkan settings
+  constexpr i32 MAX_FRAMES_IN_FLIGHT = 2;
+
+  // Shader paths
+  constexpr const char* VERTEX_SHADER_PATH   = "shaders/vertex.glsl";
+  constexpr const char* FRAGMENT_SHADER_PATH = "shaders/fragment.glsl";
+
+// Validation layers for debug builds
+#ifndef NDEBUG
+  constexpr std::array<const char*, 1> validationLayers = { "VK_LAYER_KHRONOS_validation" };
+#endif
+
+// Required device extensions (platform-specific)
+#ifdef __APPLE__
+  constexpr std::array<const char*, 2> deviceExtensions = { vk::KHRSwapchainExtensionName,
+                                                            vk::KHRPortabilitySubsetExtensionName };
+#else
+  constexpr std::array<const char*, 1> deviceExtensions = { vk::KHRSwapchainExtensionName };
+#endif
+
+} // namespace config

src/core/device_utils.hpp

@@ -0,0 +1,95 @@
+#pragma once
+
+#include <unordered_set>
+#include <vulkan/vulkan.hpp>
+
+#include "../config/config.hpp"
+#include "queue_structures.hpp"
+#include "types.hpp"
+
+namespace core {
+
+  /**
+   * @brief Gets the maximum usable sample count for MSAA.
+   *
+   * @param device Physical device to check
+   * @return vk::SampleCountFlagBits Maximum sample count supported
+   */
+  static fn getMaxUsableSampleCount(const vk::PhysicalDevice& device) -> vk::SampleCountFlagBits {
+    vk::PhysicalDeviceProperties physicalDeviceProperties = device.getProperties();
+
+    vk::SampleCountFlags counts = physicalDeviceProperties.limits.framebufferColorSampleCounts &
+                                  physicalDeviceProperties.limits.framebufferDepthSampleCounts;
+
+    if (counts & vk::SampleCountFlagBits::e64)
+      return vk::SampleCountFlagBits::e64;
+    if (counts & vk::SampleCountFlagBits::e32)
+      return vk::SampleCountFlagBits::e32;
+    if (counts & vk::SampleCountFlagBits::e16)
+      return vk::SampleCountFlagBits::e16;
+    if (counts & vk::SampleCountFlagBits::e8)
+      return vk::SampleCountFlagBits::e8;
+    if (counts & vk::SampleCountFlagBits::e4)
+      return vk::SampleCountFlagBits::e4;
+    if (counts & vk::SampleCountFlagBits::e2)
+      return vk::SampleCountFlagBits::e2;
+
+    return vk::SampleCountFlagBits::e1;
+  }
+
+  /**
+   * @brief Checks if a device supports the required extensions.
+   *
+   * @param device Physical device to check
+   * @return bool True if all required extensions are supported
+   */
+  static fn checkDeviceExtensionSupport(const vk::PhysicalDevice& device) -> bool {
+    // Get the available extensions
+    std::vector<vk::ExtensionProperties> availableExtensions = device.enumerateDeviceExtensionProperties();
+
+    // Create a set of required extensions
+    std::unordered_set<std::string> requiredExtensions(
+      config::deviceExtensions.begin(), config::deviceExtensions.end()
+    );
+
+    // For each available extension,
+    for (const auto& extension : availableExtensions)
+      // Remove it from the required extensions set if it's required
+      requiredExtensions.erase(extension.extensionName);
+
+    // If the set is empty, all required extensions are supported
+    return requiredExtensions.empty();
+  }
+
+  /**
+   * @brief Checks if a physical device is suitable for the application.
+   *
+   * @param device Physical device to check
+   * @param surface Surface to check presentation support against
+   * @return bool True if device is suitable, false otherwise
+   */
+  static fn isDeviceSuitable(const vk::PhysicalDevice& device, const vk::SurfaceKHR& surface) -> bool {
+    // Get the queue families that support the required operations
+    QueueFamilyIndices qfIndices = QueueFamilyIndices::findQueueFamilies(device, surface);
+
+    // Check if the device supports the required extensions
+    bool extensionsSupported = checkDeviceExtensionSupport(device);
+
+    bool swapChainAdequate = false;
+
+    if (extensionsSupported) {
+      SwapChainSupportDetails swapChainSupport =
+        SwapChainSupportDetails::querySwapChainSupport(device, surface);
+      // Check if the swap chain is adequate (make sure it has
+      // at least one supported format and presentation mode)
+      swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.present_modes.empty();
+    }
+
+    // Check if the device supports the required features
+    vk::PhysicalDeviceFeatures supportedFeatures = device.getFeatures();
+
+    return qfIndices.isComplete() && extensionsSupported && swapChainAdequate &&
+           supportedFeatures.samplerAnisotropy;
+  }
+
+} // namespace core

src/core/queue_structures.hpp

@@ -0,0 +1,144 @@
+#pragma once
+
+#include <optional>
+#include <vector>
+#include <vulkan/vulkan.hpp>
+
+#include "types.hpp"
+
+/**
+ * @brief Struct to store queue family indices.
+ *
+ * This struct contains the indices of the graphics and presentation queue families.
+ */
+struct QueueFamilyIndices {
+  std::optional<u32> graphics_family; ///< Index of graphics queue family
+  std::optional<u32> present_family;  ///< Index of presentation queue family
+
+  /**
+   * @brief Check if all required queue families are found.
+   *
+   * @return True if both graphics and presentation families are found, false otherwise.
+   */
+  fn isComplete() -> bool { return graphics_family.has_value() && present_family.has_value(); }
+
+  /**
+   * @brief Finds queue families that support graphics and presentation.
+   *
+   * @param device Physical device to check
+   * @param surface Surface to check presentation support against
+   * @return QueueFamilyIndices Struct containing queue family indices
+   */
+  static fn findQueueFamilies(const vk::PhysicalDevice& device, const vk::SurfaceKHR& surface)
+    -> QueueFamilyIndices {
+    QueueFamilyIndices indices;
+
+    std::vector<vk::QueueFamilyProperties> queueFamilies = device.getQueueFamilyProperties();
+
+    for (u32 i = 0; i < queueFamilies.size(); i++) {
+      const auto& queueFamily = queueFamilies[i];
+
+      // Check for graphics support
+      if (queueFamily.queueFlags & vk::QueueFlagBits::eGraphics)
+        indices.graphics_family = i;
+
+      // Check for presentation support
+      if (device.getSurfaceSupportKHR(i, surface))
+        indices.present_family = i;
+
+      if (indices.isComplete())
+        break;
+    }
+
+    return indices;
+  }
+};
+
+/**
+ * @brief Struct to hold swap chain support details.
+ *
+ * This struct contains information about the surface capabilities,
+ * supported formats, and presentation modes.
+ */
+struct SwapChainSupportDetails {
+  vk::SurfaceCapabilitiesKHR        capabilities;  ///< Surface capabilities
+  std::vector<vk::SurfaceFormatKHR> formats;       ///< Supported surface formats
+  std::vector<vk::PresentModeKHR>   present_modes; ///< Supported presentation modes
+
+  /**
+   * @brief Queries swap chain support details from a physical device.
+   *
+   * @param device Physical device to query
+   * @param surface Surface to check against
+   * @return SwapChainSupportDetails Struct containing surface capabilities and supported formats
+   */
+  static fn querySwapChainSupport(const vk::PhysicalDevice& device, const vk::SurfaceKHR& surface)
+    -> SwapChainSupportDetails {
+    SwapChainSupportDetails details;
+
+    details.capabilities  = device.getSurfaceCapabilitiesKHR(surface);
+    details.formats       = device.getSurfaceFormatsKHR(surface);
+    details.present_modes = device.getSurfacePresentModesKHR(surface);
+
+    return details;
+  }
+
+  /**
+   * @brief Chooses the best surface format for the swap chain.
+   *
+   * @param availableFormats List of available surface formats
+   * @return vk::SurfaceFormatKHR The chosen surface format
+   */
+  static fn chooseSwapSurfaceFormat(const std::vector<vk::SurfaceFormatKHR>& availableFormats
+  ) -> vk::SurfaceFormatKHR {
+    // Prefer SRGB with nonlinear color space
+    for (const auto& availableFormat : availableFormats)
+      if (availableFormat.format == vk::Format::eB8G8R8A8Srgb &&
+          availableFormat.colorSpace == vk::ColorSpaceKHR::eSrgbNonlinear)
+        return availableFormat;
+
+    // If preferred format not found, use first available
+    return availableFormats[0];
+  }
+
+  /**
+   * @brief Chooses the best presentation mode for the swap chain.
+   *
+   * @param availablePresentModes List of available presentation modes
+   * @return vk::PresentModeKHR The chosen presentation mode
+   */
+  static fn chooseSwapPresentMode(const std::vector<vk::PresentModeKHR>& availablePresentModes
+  ) -> vk::PresentModeKHR {
+    // Prefer mailbox mode (triple buffering)
+    for (const auto& availablePresentMode : availablePresentModes)
+      if (availablePresentMode == vk::PresentModeKHR::eMailbox)
+        return availablePresentMode;
+
+    // Fallback to FIFO (vsync)
+    return vk::PresentModeKHR::eFifo;
+  }
+
+  /**
+   * @brief Chooses the swap extent (resolution) for the swap chain.
+   *
+   * @param capabilities Surface capabilities
+   * @param width Desired width
+   * @param height Desired height
+   * @return vk::Extent2D The chosen swap extent
+   */
+  static fn chooseSwapExtent(const vk::SurfaceCapabilitiesKHR& capabilities, u32 width, u32 height)
+    -> vk::Extent2D {
+    if (capabilities.currentExtent.width != std::numeric_limits<u32>::max())
+      return capabilities.currentExtent;
+
+    vk::Extent2D actualExtent = { width, height };
+
+    actualExtent.width =
+      std::clamp(actualExtent.width, capabilities.minImageExtent.width, capabilities.maxImageExtent.width);
+
+    actualExtent.height =
+      std::clamp(actualExtent.height, capabilities.minImageExtent.height, capabilities.maxImageExtent.height);
+
+    return actualExtent;
+  }
+};

src/graphics/camera.hpp

@@ -0,0 +1,147 @@
+#pragma once
+
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
+
+#include "../core/types.hpp"
+#include "vkfw.hpp"
+
+// Camera speed constant from main.cpp
+constexpr f64 CAMERA_SPEED = 1.0;
+
+/**
+ * @brief Represents a 3D camera in the scene.
+ */
+struct Camera {
+  glm::dvec3 position; ///< Camera's position in 3D space
+  glm::dvec3 front;    ///< Direction the camera is facing
+  glm::dvec3 up;       ///< Camera's up vector
+  glm::dvec3 right;    ///< Camera's right vector
+  f64        yaw;      ///< Yaw angle (rotation around vertical axis)
+  f64        pitch;    ///< Pitch angle (rotation around horizontal axis)
+
+  /**
+   * @brief Constructs a Camera with default settings.
+   */
+  Camera()
+    : position(2.0, 2.0, 2.0),
+      front(glm::normalize(glm::dvec3(-2.0, -2.0, -2.0))),
+      up(0.0, 0.0, 1.0),
+      right(glm::normalize(glm::cross(front, up))),
+      yaw(-135.0),
+      pitch(-35.26) {
+    updateCameraVectors();
+  }
+
+  /**
+   * @brief Gets the camera's current position.
+   * @return The camera's position as a 3D vector.
+   */
+  [[nodiscard]] fn getPosition() const -> glm::dvec3 { return position; }
+
+  /**
+   * @brief Calculates and returns the view matrix for the camera.
+   * @return The view matrix as a 4x4 matrix.
+   */
+  [[nodiscard]] fn getViewMatrix() const -> glm::mat4 { return glm::lookAt(position, position + front, up); }
+
+  /**
+   * @brief Moves the camera forward.
+   * @param deltaTime Time elapsed since last frame.
+   */
+  fn moveForward(f64 deltaTime) -> void {
+    glm::dvec3 horizontalFront = glm::normalize(glm::dvec3(front.x, front.y, 0.0));
+    position += horizontalFront * CAMERA_SPEED * deltaTime;
+  }
+
+  /**
+   * @brief Moves the camera backward.
+   * @param deltaTime Time elapsed since last frame.
+   */
+  fn moveBackward(f64 deltaTime) -> void {
+    glm::dvec3 horizontalFront = glm::normalize(glm::dvec3(front.x, front.y, 0.0));
+    position -= horizontalFront * CAMERA_SPEED * deltaTime;
+  }
+
+  /**
+   * @brief Moves the camera to the left.
+   * @param deltaTime Time elapsed since last frame.
+   */
+  fn moveLeft(f64 deltaTime) -> void {
+    glm::dvec3 horizontalRight = glm::normalize(glm::dvec3(right.x, right.y, 0.0));
+    position -= horizontalRight * CAMERA_SPEED * deltaTime;
+  }
+
+  /**
+   * @brief Moves the camera to the right.
+   * @param deltaTime Time elapsed since last frame.
+   */
+  fn moveRight(f64 deltaTime) -> void {
+    glm::dvec3 horizontalRight = glm::normalize(glm::dvec3(right.x, right.y, 0.0));
+    position += horizontalRight * CAMERA_SPEED * deltaTime;
+  }
+
+  /**
+   * @brief Moves the camera upward.
+   * @param deltaTime Time elapsed since last frame.
+   */
+  fn moveUp(f64 deltaTime) -> void { position += glm::dvec3(0.0, 0.0, 1.0) * CAMERA_SPEED * deltaTime; }
+
+  /**
+   * @brief Moves the camera downward.
+   * @param deltaTime Time elapsed since last frame.
+   */
+  fn moveDown(f64 deltaTime) -> void { position -= glm::dvec3(0.0, 0.0, 1.0) * CAMERA_SPEED * deltaTime; }
+
+  /**
+   * @brief Rotates the camera based on mouse movement.
+   * @param xoffset Horizontal mouse movement.
+   * @param yoffset Vertical mouse movement.
+   */
+  fn rotate(f64 xoffset, f64 yoffset) -> void {
+    const f64 sensitivity = 0.1;
+    yaw += xoffset * sensitivity;
+    pitch += yoffset * sensitivity;
+
+    pitch = glm::clamp(pitch, -89.0, 89.0);
+
+    updateCameraVectors();
+  }
+
+  /**
+   * @brief Processes input for camera movement and rotation.
+   * @param window The GLFW window.
+   * @param camera The camera to be controlled.
+   * @param deltaTime Time elapsed since last frame.
+   * @param cameraSpeed Speed multiplier for camera movement.
+   */
+  static fn processInput(vkfw::Window& window, Camera& camera, const f32& deltaTime, const f32& cameraSpeed)
+    -> void {
+    if (window.getKey(vkfw::Key::eW) == vkfw::eTrue)
+      camera.moveForward(static_cast<f64>(deltaTime * cameraSpeed));
+    if (window.getKey(vkfw::Key::eA) == vkfw::eTrue)
+      camera.moveLeft(static_cast<f64>(deltaTime * cameraSpeed));
+    if (window.getKey(vkfw::Key::eS) == vkfw::eTrue)
+      camera.moveBackward(static_cast<f64>(deltaTime * cameraSpeed));
+    if (window.getKey(vkfw::Key::eD) == vkfw::eTrue)
+      camera.moveRight(static_cast<f64>(deltaTime * cameraSpeed));
+    if (window.getKey(vkfw::Key::eSpace) == vkfw::eTrue)
+      camera.moveUp(static_cast<f64>(deltaTime * cameraSpeed));
+    if (window.getKey(vkfw::Key::eLeftShift) == vkfw::eTrue)
+      camera.moveDown(static_cast<f64>(deltaTime * cameraSpeed));
+  }
+
+ private:
+  /**
+   * @brief Updates the camera's orientation vectors based on yaw and pitch.
+   */
+  fn updateCameraVectors() -> void {
+    front = glm::normalize(glm::dvec3(
+      cos(glm::radians(yaw)) * cos(glm::radians(pitch)),
+      sin(glm::radians(yaw)) * cos(glm::radians(pitch)),
+      sin(glm::radians(pitch))
+    ));
+    right = glm::normalize(glm::cross(front, glm::dvec3(0.0, 0.0, 1.0)));
+    up    = glm::normalize(glm::cross(right, front));
+  }
+};

src/graphics/image_utils.hpp

@@ -0,0 +1,278 @@
+#pragma once
+
+#define VULKAN_HPP_NO_CONSTRUCTORS
+#include <vulkan/vulkan.hpp>
+
+#include "../core/types.hpp"
+
+namespace graphics {
+
+  /**
+   * @brief Creates a Vulkan image view.
+   *
+   * This function creates and returns a unique Vulkan image view using the provided parameters.
+   *
+   * @param device The logical device to create the view on
+   * @param image The Vulkan image for which to create the view
+   * @param format The format of the image
+   * @param aspectFlags The aspect flags for the image view
+   * @param mipLevels The number of mip levels for the image view
+   * @return vk::UniqueImageView A unique handle to the created Vulkan image view
+   *
+   * @details
+   * The function creates an image view with the following properties:
+   * - 2D view type
+   * - Subresource range starting from base mip level 0
+   * - Single array layer starting from base array layer 0
+   */
+  static fn createImageView(
+    const vk::Device&           device,
+    const vk::Image&            image,
+    const vk::Format&           format,
+    const vk::ImageAspectFlags& aspectFlags,
+    const u32&                  mipLevels
+  ) -> vk::UniqueImageView {
+    return device.createImageViewUnique({
+      .image            = image,
+      .viewType         = vk::ImageViewType::e2D,
+      .format           = format,
+      .subresourceRange = {
+                           .aspectMask     = aspectFlags,
+                           .baseMipLevel   = 0,
+                           .levelCount     = mipLevels,
+                           .baseArrayLayer = 0,
+                           .layerCount     = 1,
+                         },
+    });
+  }
+
+  /**
+   * @brief Finds a suitable memory type for allocation.
+   *
+   * @param physicalDevice The physical device to check
+   * @param typeFilter Filter for memory types
+   * @param properties Required memory properties
+   * @return u32 Index of the suitable memory type
+   */
+  static fn findMemoryType(
+    const vk::PhysicalDevice&      physicalDevice,
+    const u32&                     typeFilter,
+    const vk::MemoryPropertyFlags& properties
+  ) -> u32 {
+    vk::PhysicalDeviceMemoryProperties memProperties = physicalDevice.getMemoryProperties();
+
+    for (u32 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!");
+  }
+
+  /**
+   * @brief Creates a Vulkan image and allocates memory for it.
+   *
+   * @param device The logical device to create the image on
+   * @param width Width of the image
+   * @param height Height of the image
+   * @param mipLevels Number of mip levels
+   * @param numSamples Number of samples for multisampling
+   * @param format Format of the image
+   * @param tiling Tiling mode of the image
+   * @param usage Usage flags for the image
+   * @param properties Memory property flags
+   * @return std::pair<vk::UniqueImage, vk::UniqueDeviceMemory> A pair containing the image and its memory
+   */
+  static fn createImage(
+    const vk::Device&              device,
+    const vk::PhysicalDevice&      physicalDevice,
+    const u32&                     width,
+    const u32&                     height,
+    const u32&                     mipLevels,
+    const vk::SampleCountFlagBits& numSamples,
+    const vk::Format&              format,
+    const vk::ImageTiling&         tiling,
+    const vk::ImageUsageFlags&     usage,
+    const vk::MemoryPropertyFlags& properties
+  ) -> std::pair<vk::UniqueImage, vk::UniqueDeviceMemory> {
+    // Define the image creation info
+    vk::ImageCreateInfo imageInfo {
+      .imageType     = vk::ImageType::e2D,
+      .format        = format,
+      .extent        = { .width = width, .height = height, .depth = 1 },
+      .mipLevels     = mipLevels,
+      .arrayLayers   = 1,
+      .samples       = numSamples,
+      .tiling        = tiling,
+      .usage         = usage,
+      .sharingMode   = vk::SharingMode::eExclusive,
+      .initialLayout = vk::ImageLayout::eUndefined,
+    };
+
+    // Create the image
+    vk::UniqueImage image = device.createImageUnique(imageInfo);
+
+    // Get the memory requirements for the image
+    vk::MemoryRequirements memRequirements = device.getImageMemoryRequirements(image.get());
+
+    // Memory allocation info
+    vk::MemoryAllocateInfo allocInfo {
+      .allocationSize  = memRequirements.size,
+      .memoryTypeIndex = findMemoryType(physicalDevice, memRequirements.memoryTypeBits, properties),
+    };
+
+    // Allocate memory
+    vk::UniqueDeviceMemory imageMemory = device.allocateMemoryUnique(allocInfo);
+
+    // Bind the allocated memory to the image
+    device.bindImageMemory(image.get(), imageMemory.get(), 0);
+
+    return { std::move(image), std::move(imageMemory) };
+  }
+
+  /**
+   * @brief Transitions an image between layouts.
+   *
+   * @param device The logical device
+   * @param commandPool The command pool to allocate command buffers from
+   * @param queue The queue to submit commands to
+   * @param image The image to transition
+   * @param oldLayout The old layout
+   * @param newLayout The new layout
+   * @param mipLevels Number of mip levels
+   */
+  static fn transitionImageLayout(
+    const vk::Device&      device,
+    const vk::CommandPool& commandPool,
+    const vk::Queue&       queue,
+    const vk::Image&       image,
+    const vk::ImageLayout& oldLayout,
+    const vk::ImageLayout& newLayout,
+    const u32&             mipLevels
+  ) -> void {
+    // Create a command buffer
+    vk::CommandBufferAllocateInfo allocInfo {
+      .commandPool        = commandPool,
+      .level              = vk::CommandBufferLevel::ePrimary,
+      .commandBufferCount = 1,
+    };
+
+    vk::UniqueCommandBuffer commandBuffer = std::move(device.allocateCommandBuffersUnique(allocInfo)[0]);
+
+    // Begin recording
+    commandBuffer->begin({ .flags = vk::CommandBufferUsageFlagBits::eOneTimeSubmit });
+
+    // Define the image memory barrier
+    vk::ImageMemoryBarrier barrier {
+      .oldLayout           = oldLayout,
+      .newLayout           = newLayout,
+      .srcQueueFamilyIndex = vk::QueueFamilyIgnored,
+      .dstQueueFamilyIndex = vk::QueueFamilyIgnored,
+      .image               = image,
+      .subresourceRange    = {
+        .aspectMask     = vk::ImageAspectFlagBits::eColor,
+        .baseMipLevel   = 0,
+        .levelCount     = mipLevels,
+        .baseArrayLayer = 0,
+        .layerCount     = 1,
+      },
+    };
+
+    // Define the source and destination stages
+    vk::PipelineStageFlags sourceStage;
+    vk::PipelineStageFlags destinationStage;
+
+    // Define the access masks
+    if (oldLayout == vk::ImageLayout::eUndefined && newLayout == vk::ImageLayout::eTransferDstOptimal) {
+      barrier.srcAccessMask = {};
+      barrier.dstAccessMask = vk::AccessFlagBits::eTransferWrite;
+
+      sourceStage      = vk::PipelineStageFlagBits::eTopOfPipe;
+      destinationStage = vk::PipelineStageFlagBits::eTransfer;
+    } else if (oldLayout == vk::ImageLayout::eTransferDstOptimal &&
+               newLayout == vk::ImageLayout::eShaderReadOnlyOptimal) {
+      barrier.srcAccessMask = vk::AccessFlagBits::eTransferWrite;
+      barrier.dstAccessMask = vk::AccessFlagBits::eShaderRead;
+
+      sourceStage      = vk::PipelineStageFlagBits::eTransfer;
+      destinationStage = vk::PipelineStageFlagBits::eFragmentShader;
+    } else {
+      // Ensure that the layout transition is supported
+      throw std::invalid_argument("Unsupported layout transition!");
+    }
+
+    // Record the pipeline barrier
+    commandBuffer->pipelineBarrier(sourceStage, destinationStage, {}, {}, {}, barrier);
+
+    // End recording
+    commandBuffer->end();
+
+    // Submit the command buffer
+    vk::SubmitInfo submitInfo {
+      .commandBufferCount = 1,
+      .pCommandBuffers    = &commandBuffer.get(),
+    };
+
+    queue.submit(submitInfo);
+    queue.waitIdle();
+  }
+
+  /**
+   * @brief Copies data from a buffer to an image.
+   *
+   * @param device The logical device
+   * @param commandPool The command pool to allocate command buffers from
+   * @param queue The queue to submit commands to
+   * @param buffer Source buffer
+   * @param image Destination image
+   * @param width Image width
+   * @param height Image height
+   */
+  static fn copyBufferToImage(
+    const vk::Device&      device,
+    const vk::CommandPool& commandPool,
+    const vk::Queue&       queue,
+    const vk::Buffer&      buffer,
+    const vk::Image&       image,
+    const u32&             width,
+    const u32&             height
+  ) -> void {
+    // Create a command buffer
+    vk::CommandBufferAllocateInfo allocInfo {
+      .commandPool        = commandPool,
+      .level              = vk::CommandBufferLevel::ePrimary,
+      .commandBufferCount = 1,
+    };
+
+    vk::UniqueCommandBuffer commandBuffer = std::move(device.allocateCommandBuffersUnique(allocInfo)[0]);
+
+    // Begin recording
+    commandBuffer->begin({ .flags = vk::CommandBufferUsageFlagBits::eOneTimeSubmit });
+
+    vk::BufferImageCopy region {
+      .bufferOffset      = 0,
+      .bufferRowLength   = 0,
+      .bufferImageHeight = 0,
+      .imageSubresource  = { .aspectMask     = vk::ImageAspectFlagBits::eColor,
+                            .mipLevel       = 0,
+                            .baseArrayLayer = 0,
+                            .layerCount     = 1 },
+      .imageOffset       = { .x = 0, .y = 0, .z = 0 },
+      .imageExtent       = { .width = width, .height = height, .depth = 1 },
+    };
+
+    commandBuffer->copyBufferToImage(buffer, image, vk::ImageLayout::eTransferDstOptimal, 1, &region);
+
+    // End recording
+    commandBuffer->end();
+
+    // Submit the command buffer
+    vk::SubmitInfo submitInfo {
+      .commandBufferCount = 1,
+      .pCommandBuffers    = &commandBuffer.get(),
+    };
+
+    queue.submit(submitInfo);
+    queue.waitIdle();
+  }
+
+} // namespace graphics

src/graphics/shaders.hpp

@@ -0,0 +1,230 @@
+/**
+ * @file shaders.hpp
+ * @brief SPIR-V shader compilation and caching system.
+ *
+ * This file provides functionality for compiling GLSL shaders to SPIR-V and
+ * managing a shader cache system. It supports automatic recompilation when
+ * source files are modified and efficient caching of compiled shaders.
+ */
+
+#pragma once
+
+#include <filesystem>
+#include <fmt/format.h>
+#include <fstream>
+#include <ios>
+#include <shaderc/shaderc.hpp>
+#include <string>
+#include <vector>
+
+#define VULKAN_HPP_NO_CONSTRUCTORS
+#include <vulkan/vulkan.hpp>
+
+#include "../core/types.hpp"
+
+namespace graphics {
+
+  /**
+   * @brief Handles shader compilation and caching operations.
+   *
+   * This class provides static methods for compiling GLSL shaders to SPIR-V
+   * and managing a cache system. It automatically detects when shaders need
+   * to be recompiled based on file timestamps and provides efficient caching
+   * of compiled shader binaries.
+   */
+  class ShaderCompiler {
+   public:
+    ShaderCompiler() = default;
+
+    /**
+     * @brief Compiles or retrieves a cached SPIR-V shader.
+     *
+     * @param shaderPath Path to the GLSL shader source file
+     * @param kind Type of shader (vertex, fragment, compute, etc.)
+     * @return std::vector<u32> Compiled SPIR-V binary code
+     * @throws std::runtime_error If shader compilation fails or file is not found
+     *
+     * This function performs the following steps:
+     * 1. Checks if a cached version exists and is up-to-date
+     * 2. Loads from cache if available and valid
+     * 3. Otherwise, compiles the shader from source
+     * 4. Caches the newly compiled shader for future use
+     * 5. Returns the SPIR-V binary code
+     */
+    static fn getCompiledShader(const std::filesystem::path& shaderPath, const shaderc_shader_kind& kind)
+      -> std::vector<u32> {
+      using namespace std;
+
+      // Convert to absolute path if relative
+      filesystem::path absPath = filesystem::absolute(shaderPath);
+
+      if (!filesystem::exists(absPath))
+        throw runtime_error("Shader file not found: " + absPath.string());
+
+      const string           shaderName = absPath.stem().string();
+      const filesystem::path cacheFile  = getCacheFilePath(shaderName);
+
+      // Check if we need to recompile by comparing timestamps
+      if (filesystem::exists(cacheFile)) {
+        const auto sourceTime = filesystem::last_write_time(absPath);
+        const auto cacheTime  = filesystem::last_write_time(cacheFile);
+
+        if (cacheTime >= sourceTime) {
+          // Cache is up to date, load it
+          vector<u32> spirvCode = loadCachedShader(cacheFile);
+          if (!spirvCode.empty()) {
+            fmt::println("Loaded shader from cache: {}", cacheFile.string());
+            return spirvCode;
+          }
+        }
+      }
+
+      // Need to compile the shader
+      fmt::println("Compiling shader: {}", absPath.string());
+
+      // Read shader source
+      ifstream file(absPath);
+      if (!file)
+        throw runtime_error("Failed to open shader file: " + absPath.string());
+
+      string shaderSource((istreambuf_iterator<char>(file)), istreambuf_iterator<char>());
+      file.close();
+
+      // Compile the shader
+      vector<u32> spirvCode = compileShader(shaderSource.c_str(), kind);
+
+      if (spirvCode.empty())
+        throw runtime_error("Shader compilation failed for: " + absPath.string());
+
+      // Cache the compiled SPIR-V binary
+      saveCompiledShader(spirvCode, cacheFile.string());
+      return spirvCode;
+    }
+
+    /**
+     * @brief Creates a shader module from SPIR-V code.
+     *
+     * @param device Logical device to create the shader module on
+     * @param code SPIR-V binary code
+     * @return vk::UniqueShaderModule Unique handle to the created shader module
+     */
+    static fn createShaderModule(const vk::Device& device, const std::vector<u32>& code)
+      -> vk::UniqueShaderModule {
+      vk::ShaderModuleCreateInfo createInfo { .codeSize = code.size() * sizeof(u32), .pCode = code.data() };
+
+      return device.createShaderModuleUnique(createInfo);
+    }
+
+   private:
+    /**
+     * @brief Determines the platform-specific shader cache directory.
+     *
+     * @param shaderName Base name of the shader file
+     * @return std::filesystem::path Full path to the cache file
+     *
+     * Cache locations:
+     * - Windows: %LOCALAPPDATA%/VulkanApp/Shaders/
+     * - macOS: ~/Library/Application Support/VulkanApp/Shaders/
+     * - Linux: ~/.local/share/VulkanApp/Shaders/
+     *
+     * The directory is created if it doesn't exist.
+     */
+    static fn getCacheFilePath(const string& shaderName) -> std::filesystem::path {
+      using namespace std::filesystem;
+
+#ifdef _WIN32
+      path cacheDir = path(getenv("LOCALAPPDATA")) / "VulkanApp" / "Shaders";
+#elif defined(__APPLE__)
+      path cacheDir = path(getenv("HOME")) / "Library" / "Application Support" / "VulkanApp" / "Shaders";
+#else // Assume Linux or other UNIX-like systems
+      path cacheDir = path(getenv("HOME")) / ".local" / "share" / "VulkanApp" / "Shaders";
+#endif
+
+      if (!exists(cacheDir))
+        create_directories(cacheDir);
+
+      return cacheDir / (shaderName + ".spv");
+    }
+
+    /**
+     * @brief Loads a cached SPIR-V shader from disk.
+     *
+     * @param cachePath Path to the cached shader file
+     * @return std::vector<u32> SPIR-V binary code, empty if loading fails
+     *
+     * Reads the binary SPIR-V data from the cache file. Returns an empty
+     * vector if the file cannot be opened or read properly.
+     */
+    static fn loadCachedShader(const std::filesystem::path& cachePath) -> std::vector<u32> {
+      std::ifstream file(cachePath, std::ios::binary);
+      if (!file.is_open())
+        return {};
+
+      // Read file size
+      file.seekg(0, std::ios::end);
+      const std::streamoff fileSize = file.tellg();
+      file.seekg(0, std::ios::beg);
+
+      // Allocate buffer and read data
+      std::vector<u32> buffer(static_cast<u32>(fileSize) / sizeof(u32));
+      file.read(std::bit_cast<char*>(buffer.data()), fileSize);
+
+      return buffer;
+    }
+
+    /**
+     * @brief Compiles GLSL source code to SPIR-V.
+     *
+     * @param source GLSL shader source code
+     * @param kind Type of shader being compiled
+     * @return std::vector<u32> Compiled SPIR-V binary code
+     *
+     * Uses the shaderc library to compile GLSL to SPIR-V. The compilation
+     * is performed with optimization level set to performance and generates
+     * debug information in debug builds.
+     */
+    static fn compileShader(const char* source, shaderc_shader_kind kind) -> std::vector<u32> {
+      shaderc::Compiler       compiler;
+      shaderc::CompileOptions options;
+
+      // Set compilation options
+#ifdef NDEBUG
+      options.SetOptimizationLevel(shaderc_optimization_level_performance);
+#else
+      options.SetOptimizationLevel(shaderc_optimization_level_zero);
+      options.SetGenerateDebugInfo();
+#endif
+
+      // Compile the shader
+      shaderc::SpvCompilationResult module = compiler.CompileGlslToSpv(source, kind, "shader", options);
+
+      if (module.GetCompilationStatus() != shaderc_compilation_status_success)
+        return {};
+
+      return { module.cbegin(), module.cend() };
+    }
+
+    /**
+     * @brief Saves compiled SPIR-V code to the cache.
+     *
+     * @param spirv Compiled SPIR-V binary code
+     * @param cachePath Path where the cache file should be saved
+     * @return bool True if save was successful, false otherwise
+     *
+     * Writes the SPIR-V binary to disk for future use. Creates any
+     * necessary parent directories if they don't exist.
+     */
+    static fn saveCompiledShader(const std::vector<u32>& spirv, const std::string& cachePath) -> bool {
+      std::ofstream file(cachePath, std::ios::binary);
+      if (!file.is_open())
+        return false;
+
+      file.write(
+        std::bit_cast<const char*>(spirv.data()), static_cast<std::streamsize>(spirv.size() * sizeof(u32))
+      );
+
+      return file.good();
+    }
+  }; // class ShaderCompiler
+
+} // namespace graphics

src/graphics/uniform_buffer.hpp

@@ -0,0 +1,14 @@
+#pragma once
+
+#include <glm/glm.hpp>
+
+/**
+ * @brief Struct representing a uniform buffer object.
+ *
+ * This struct holds the model, view, and projection matrices for use in shaders.
+ */
+struct UniformBufferObject {
+  alignas(16) glm::mat4 model; ///< Model transformation matrix
+  alignas(16) glm::mat4 view;  ///< View transformation matrix
+  alignas(16) glm::mat4 proj;  ///< Projection matrix
+};

src/graphics/unique_image.hpp

@@ -8,11 +8,12 @@
  */
 
 #include <filesystem>
+#include <fmt/format.h>
 
 #define STB_IMAGE_IMPLEMENTATION
 #include <stb_image.h>
 
-#include "types.hpp"
+#include "../core/types.hpp"
 
 namespace stb {
   /**
@@ -36,8 +37,8 @@ namespace stb {
     UniqueImage(const std::filesystem::path& path) { load(path.string().c_str()); }
 
     // Prevent copying to maintain single ownership
-    UniqueImage(const UniqueImage&) = delete;
+    UniqueImage(const UniqueImage&)                = delete;
-    fn operator=(const UniqueImage&) -> UniqueImage& = delete;
+    fn operator=(const UniqueImage&)->UniqueImage& = delete;
 
     /**
      * @brief Move constructor for transferring image ownership.

src/graphics/vertex.hpp

@@ -15,7 +15,7 @@
 #define VULKAN_HPP_NO_CONSTRUCTORS
 #include <vulkan/vulkan.hpp>
 
-#include "types.hpp"
+#include "../core/types.hpp"
 
 /**
  * @brief Represents a vertex in 3D space with color and texture information.
@@ -46,7 +46,8 @@ struct Vertex {
   /**
    * @brief Provides attribute descriptions for vertex data interpretation.
    *
-   * @return std::array<vk::VertexInputAttributeDescription, 3> Array of descriptions for position, color, and texture coordinates.
+   * @return std::array<vk::VertexInputAttributeDescription, 3> Array of descriptions for position, color, and
+   * texture coordinates.
    *
    * The attribute descriptions specify:
    * - Location indices (0 for position, 1 for color, 2 for texture coordinates)
@@ -56,9 +57,9 @@ struct Vertex {
    */
   static fn getAttributeDescriptions() -> std::array<vk::VertexInputAttributeDescription, 3> {
     return {
-      vk::VertexInputAttributeDescription { 0, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, pos) },
+      vk::VertexInputAttributeDescription { 0, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex,       pos) },
-      vk::VertexInputAttributeDescription { 1, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex, color) },
+      vk::VertexInputAttributeDescription { 1, 0, vk::Format::eR32G32B32Sfloat, offsetof(Vertex,     color) },
-      vk::VertexInputAttributeDescription { 2, 0, vk::Format::eR32G32Sfloat, offsetof(Vertex, tex_coord) }
+      vk::VertexInputAttributeDescription { 2, 0,    vk::Format::eR32G32Sfloat, offsetof(Vertex, tex_coord) }
     };
   }
 
@@ -68,7 +69,7 @@ struct Vertex {
    * @param other The vertex to compare with.
    * @return bool True if vertices are identical in position, color, and texture coordinates.
    */
-  fn operator==(const Vertex& other) const -> bool {
+  fn operator==(const Vertex& other) const->bool {
     return pos == other.pos && color == other.color && tex_coord == other.tex_coord;
   }
 };
@@ -89,7 +90,7 @@ namespace std {
      * @param vertex The vertex to hash.
      * @return size_t Hash value combining all vertex attributes.
      */
-    fn operator()(Vertex const& vertex) const -> size_t {
+    fn operator()(Vertex const& vertex) const->size_t {
       return ((hash<vec3>()(vertex.pos) ^ (hash<vec3>()(vertex.color) << 1)) >> 1) ^
              (hash<vec2>()(vertex.tex_coord) << 1);
     }

src/main.cpp

@@ -22,12 +22,6 @@
 // Necessary for dynamic dispatch to work
 VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE
 
-// Include custom utility headers
-#include "util/shaders.hpp"      // Compiled shader code
-#include "util/types.hpp"        // Custom type definitions
-#include "util/unique_image.hpp" // Custom image handling utilities
-#include "util/vertex.hpp"       // Custom vertex structure definition
-
 // ImGui headers for GUI
 #include <imgui.h>
 #include <imgui_impl_glfw.h>
@@ -37,32 +31,21 @@ VULKAN_HPP_DEFAULT_DISPATCH_LOADER_DYNAMIC_STORAGE
 #define VKFW_NO_STRUCT_CONSTRUCTORS // Use aggregate initialization for GLFW structs
 #include "vkfw.hpp"                 // Include GLFW C++ bindings
 
-// Constants for window dimensions
+// Include custom utility headers
-constexpr i32 WIDTH  = 1920;
+#include "config/config.hpp"           // Configuration constants
-constexpr i32 HEIGHT = 1080;
+#include "core/device_utils.hpp"       // Device-related utilities
+#include "core/queue_structures.hpp"   // Queue-related structures
+#include "core/types.hpp"              // Custom type definitions
+#include "graphics/camera.hpp"         // Camera implementation
+#include "graphics/image_utils.hpp"    // Image-related utilities
+#include "graphics/shaders.hpp"        // Custom shader code
+#include "graphics/uniform_buffer.hpp" // Uniform buffer object
+#include "graphics/unique_image.hpp"   // Custom image handling utilities
+#include "graphics/vertex.hpp"         // Custom vertex structure definition
 
-// CAMERA_SPEED of camera movement
+using namespace config;   // For easy access to configuration constants
-constexpr f64 CAMERA_SPEED = 1.0;
+using namespace core;     // For core utilities
-
+using namespace graphics; // For graphics utilities
-// Maximum number of frames that can be processed concurrently
-constexpr i32 MAX_FRAMES_IN_FLIGHT = 2;
-
-// Shader file paths
-constexpr const char* VERTEX_SHADER_PATH   = "shaders/vertex.glsl";
-constexpr const char* FRAGMENT_SHADER_PATH = "shaders/fragment.glsl";
-
-// Validation layers for debug builds
-#ifndef NDEBUG
-constexpr std::array<const char*, 1> validationLayers = { "VK_LAYER_KHRONOS_validation" };
-#endif
-
-// Required device extensions (platform-specific)
-#ifdef __APPLE__
-constexpr std::array<const char*, 2> deviceExtensions = { vk::KHRSwapchainExtensionName,
-                                                          vk::KHRPortabilitySubsetExtensionName };
-#else
-constexpr std::array<const char*, 1> deviceExtensions = { vk::KHRSwapchainExtensionName };
-#endif
 
 /**
  * @brief The Vulkan application class.
@@ -182,154 +165,7 @@ class VulkanApp {
   f32  mFieldOfView   = 90.0F;        ///< Current field of view
   bool mWireframeMode = false;        ///< Wireframe rendering mode
 
-  /**
+  Camera mCamera; ///< Camera object for the scene
-   * @brief Struct to store queue family indices.
-   *
-   * This struct contains the indices of the graphics and presentation queue families.
-   */
-  struct QueueFamilyIndices {
-    std::optional<u32> graphics_family; ///< Index of graphics queue family
-    std::optional<u32> present_family;  ///< Index of presentation queue family
-
-    /**
-     * @brief Check if all required queue families are found.
-     *
-     * @return True if both graphics and presentation families are found, false otherwise.
-     */
-    fn isComplete() -> bool { return graphics_family.has_value() && present_family.has_value(); }
-  };
-
-  /**
-   * @brief Struct to hold swap chain support details.
-   *
-   * This struct contains information about the surface capabilities,
-   * supported formats, and presentation modes.
-   */
-  struct SwapChainSupportDetails {
-    vk::SurfaceCapabilitiesKHR        capabilities;  ///< Surface capabilities
-    std::vector<vk::SurfaceFormatKHR> formats;       ///< Supported surface formats
-    std::vector<vk::PresentModeKHR>   present_modes; ///< Supported presentation modes
-  };
-
-  /**
-   * @brief Struct representing a uniform buffer object.
-   *
-   * This struct holds the model, view, and projection matrices for use in shaders.
-   */
-  struct UniformBufferObject {
-    alignas(16) glm::mat4 model; ///< Model transformation matrix
-    alignas(16) glm::mat4 view;  ///< View transformation matrix
-    alignas(16) glm::mat4 proj;  ///< Projection matrix
-  };
-
-  struct Camera {
-    glm::dvec3 position;
-    glm::dvec3 front;
-    glm::dvec3 up;
-    glm::dvec3 right;
-    f64        yaw;
-    f64        pitch;
-
-    Camera()
-      : position(2.0, 2.0, 2.0),
-        front(glm::normalize(glm::dvec3(-2.0, -2.0, -2.0))),
-        up(0.0, 0.0, 1.0),
-        right(glm::normalize(glm::cross(front, up))),
-        yaw(-135.0) // -135 degrees to match the initial front vector
-        ,
-        pitch(-35.26) // -35.26 degrees to match the initial front vector
-    {
-      updateCameraVectors();
-    }
-
-    [[nodiscard]] fn getPosition() const -> glm::dvec3 { return position; }
-
-    [[nodiscard]] fn getViewMatrix() const -> glm::mat4 {
-      return glm::lookAt(position, position + front, up);
-    }
-
-    fn moveForward(f64 deltaTime) -> void {
-      // Project front vector onto horizontal plane by zeroing Z component
-      glm::dvec3 horizontalFront = front;
-      horizontalFront.z          = 0.0;
-      horizontalFront            = glm::normalize(horizontalFront);
-      position += horizontalFront * CAMERA_SPEED * deltaTime;
-    }
-
-    fn moveBackward(f64 deltaTime) -> void {
-      // Project front vector onto horizontal plane by zeroing Z component
-      glm::dvec3 horizontalFront = front;
-      horizontalFront.z          = 0.0;
-      horizontalFront            = glm::normalize(horizontalFront);
-      position -= horizontalFront * CAMERA_SPEED * deltaTime;
-    }
-
-    fn moveLeft(f64 deltaTime) -> void {
-      // Project right vector onto horizontal plane by zeroing Z component
-      glm::dvec3 horizontalRight = right;
-      horizontalRight.z          = 0.0;
-      horizontalRight            = glm::normalize(horizontalRight);
-      position -= horizontalRight * CAMERA_SPEED * deltaTime;
-    }
-
-    fn moveRight(f64 deltaTime) -> void {
-      // Project right vector onto horizontal plane by zeroing Z component
-      glm::dvec3 horizontalRight = right;
-      horizontalRight.z          = 0.0;
-      horizontalRight            = glm::normalize(horizontalRight);
-      position += horizontalRight * CAMERA_SPEED * deltaTime;
-    }
-
-    fn moveUp(f64 deltaTime) -> void { position += glm::dvec3(0.0, 0.0, 1.0) * CAMERA_SPEED * deltaTime; }
-
-    fn moveDown(f64 deltaTime) -> void { position -= glm::dvec3(0.0, 0.0, 1.0) * CAMERA_SPEED * deltaTime; }
-
-    fn rotate(f64 xoffset, f64 yoffset) -> void {
-      const f64 sensitivity = 0.1;
-      yaw += xoffset * sensitivity;
-      pitch += yoffset * sensitivity;
-
-      // Constrain pitch to avoid camera flipping
-      if (pitch > 89.0)
-        pitch = 89.0;
-      if (pitch < -89.0)
-        pitch = -89.0;
-
-      updateCameraVectors();
-    }
-
-   private:
-    fn updateCameraVectors() -> void {
-      // Calculate new front vector
-      glm::dvec3 newFront;
-      newFront.x = cos(glm::radians(yaw)) * cos(glm::radians(pitch));
-      newFront.y = sin(glm::radians(yaw)) * cos(glm::radians(pitch));
-      newFront.z = sin(glm::radians(pitch));
-
-      front = glm::normalize(newFront);
-      // Recalculate right and up vectors
-      right = glm::normalize(glm::cross(front, glm::dvec3(0.0, 0.0, 1.0)));
-      up    = glm::normalize(glm::cross(right, front));
-    }
-  };
-
-  Camera mCamera; ///< Camera object
-
-  static fn processInput(vkfw::Window& window, Camera& camera, const f32& deltaTime, const f32& cameraSpeed)
-    -> void {
-    if (window.getKey(vkfw::Key::eW) == vkfw::eTrue)
-      camera.moveForward(static_cast<f64>(deltaTime * cameraSpeed));
-    if (window.getKey(vkfw::Key::eA) == vkfw::eTrue)
-      camera.moveLeft(static_cast<f64>(deltaTime * cameraSpeed));
-    if (window.getKey(vkfw::Key::eS) == vkfw::eTrue)
-      camera.moveBackward(static_cast<f64>(deltaTime * cameraSpeed));
-    if (window.getKey(vkfw::Key::eD) == vkfw::eTrue)
-      camera.moveRight(static_cast<f64>(deltaTime * cameraSpeed));
-    if (window.getKey(vkfw::Key::eSpace) == vkfw::eTrue)
-      camera.moveUp(static_cast<f64>(deltaTime * cameraSpeed));
-    if (window.getKey(vkfw::Key::eLeftShift) == vkfw::eTrue)
-      camera.moveDown(static_cast<f64>(deltaTime * cameraSpeed));
-  }
 
   /**
    * @brief Initializes the application window using GLFW.
@@ -459,17 +295,23 @@ class VulkanApp {
     createDepthResources();      // Create resources for depth testing
     createFramebuffers();        // Create framebuffers for rendering
     createTextureImage();        // Load and create the texture image
-    createTextureImageView();    // Create an image view for the texture
+    mTextureImageView = graphics::createImageView(
-    createTextureSampler();      // Create a sampler for the texture
+      mDevice.get(),
-    loadModel();                 // Load the 3D model
+      mTextureImage.get(),
-    createVertexBuffer();        // Create a buffer for vertex data
+      vk::Format::eR8G8B8A8Srgb,
-    createIndexBuffer();         // Create a buffer for index data
+      vk::ImageAspectFlagBits::eColor,
-    createUniformBuffers();      // Create uniform buffers for shader parameters
+      mMipLevels
-    createDescriptorPool();      // Create a descriptor pool
+    );
-    createDescriptorSets();      // Allocate and update descriptor sets
+    createTextureSampler(); // Create a sampler for the texture
-    createCommandBuffers();      // Create command buffers for rendering commands
+    loadModel();            // Load the 3D model
-    createSyncObjects();         // Create synchronization objects (semaphores and fences)
+    createVertexBuffer();   // Create a buffer for vertex data
-    initImGui();                 // Initialize Dear ImGui for GUI rendering
+    createIndexBuffer();    // Create a buffer for index data
+    createUniformBuffers(); // Create uniform buffers for shader parameters
+    createDescriptorPool(); // Create a descriptor pool
+    createDescriptorSets(); // Allocate and update descriptor sets
+    createCommandBuffers(); // Create command buffers for rendering commands
+    createSyncObjects();    // Create synchronization objects (semaphores and fences)
+    initImGui();            // Initialize Dear ImGui for GUI rendering
   }
 
   /**
@@ -512,10 +354,11 @@ class VulkanApp {
     mImGuiDescriptorPool = mDevice->createDescriptorPoolUnique(poolInfo);
 
     ImGui_ImplVulkan_InitInfo initInfo = {
-      .Instance                    = mInstance.get(),
+      .Instance       = mInstance.get(),
-      .PhysicalDevice              = mPhysicalDevice,
+      .PhysicalDevice = mPhysicalDevice,
-      .Device                      = mDevice.get(),
+      .Device         = mDevice.get(),
-      .QueueFamily                 = findQueueFamilies(mPhysicalDevice).graphics_family.value(),
+      .QueueFamily =
+        QueueFamilyIndices::findQueueFamilies(mPhysicalDevice, mSurface.get()).graphics_family.value(),
       .Queue                       = mGraphicsQueue,
       .DescriptorPool              = mImGuiDescriptorPool.get(),
       .RenderPass                  = mRenderPass.get(),
@@ -551,7 +394,7 @@ class VulkanApp {
       deltaTime        = currentFrame - lastFrame;
       lastFrame        = currentFrame;
 
-      processInput(mWindow.get(), mCamera, static_cast<f32>(deltaTime), mCameraSpeed);
+      Camera::processInput(mWindow.get(), mCamera, static_cast<f32>(deltaTime), mCameraSpeed);
       mView = mCamera.getViewMatrix();
 
       if (currentFrame - lastFpsUpdate > 1.0) {
@@ -741,9 +584,9 @@ class VulkanApp {
 #endif
 
       // Set the first suitable device as the physical device
-      if (isDeviceSuitable(device)) {
+      if (isDeviceSuitable(device, mSurface.get())) {
         mPhysicalDevice = device;
-        mMsaaSamples    = getMaxUsableSampleCount();
+        mMsaaSamples    = getMaxUsableSampleCount(device);
         break;
       }
     }
@@ -761,7 +604,7 @@ class VulkanApp {
    */
   fn createLogicalDevice() -> void {
     // Get the queue families
-    QueueFamilyIndices qfIndices = findQueueFamilies(mPhysicalDevice);
+    QueueFamilyIndices qfIndices = QueueFamilyIndices::findQueueFamilies(mPhysicalDevice, mSurface.get());
 
     std::vector<vk::DeviceQueueCreateInfo> queueCreateInfos;
 
@@ -813,11 +656,15 @@ class VulkanApp {
    * It determines the format, presentation mode, and extent of the swap chain images.
    */
   fn createSwapChain() -> void {
-    SwapChainSupportDetails swapChainSupport = querySwapChainSupport(mPhysicalDevice);
+    SwapChainSupportDetails swapChainSupport =
+      SwapChainSupportDetails::querySwapChainSupport(mPhysicalDevice, mSurface.get());
 
-    vk::SurfaceFormatKHR surfaceFormat = chooseSwapSurfaceFormat(swapChainSupport.formats);
+    vk::SurfaceFormatKHR surfaceFormat =
-    vk::PresentModeKHR   presentMode   = chooseSwapPresentMode(swapChainSupport.present_modes);
+      SwapChainSupportDetails::chooseSwapSurfaceFormat(swapChainSupport.formats);
-    vk::Extent2D         extent        = chooseSwapExtent(swapChainSupport.capabilities);
+    vk::PresentModeKHR presentMode =
+      SwapChainSupportDetails::chooseSwapPresentMode(swapChainSupport.present_modes);
+    vk::Extent2D extent =
+      SwapChainSupportDetails::chooseSwapExtent(swapChainSupport.capabilities, WIDTH, HEIGHT);
 
     u32 imageCount = swapChainSupport.capabilities.minImageCount + 1;
 
@@ -825,7 +672,7 @@ class VulkanApp {
         imageCount > swapChainSupport.capabilities.maxImageCount)
       imageCount = swapChainSupport.capabilities.maxImageCount;
 
-    QueueFamilyIndices qfIndices          = findQueueFamilies(mPhysicalDevice);
+    QueueFamilyIndices qfIndices = QueueFamilyIndices::findQueueFamilies(mPhysicalDevice, mSurface.get());
     std::array<u32, 2> queueFamilyIndices = {
       qfIndices.graphics_family.value(),
       qfIndices.present_family.value(),
@@ -869,8 +716,9 @@ class VulkanApp {
     mSwapChainImageViews.resize(mSwapChainImages.size());
 
     for (u32 i = 0; i < mSwapChainImages.size(); i++)
-      mSwapChainImageViews[i] =
+      mSwapChainImageViews[i] = createImageView(
-        createImageView(mSwapChainImages[i], mSwapChainImageFormat, vk::ImageAspectFlagBits::eColor, 1);
+        mDevice.get(), mSwapChainImages[i], mSwapChainImageFormat, vk::ImageAspectFlagBits::eColor, 1
+      );
   }
 
   /**
@@ -1008,12 +856,14 @@ class VulkanApp {
    */
   fn createGraphicsPipeline() -> void {
     std::vector<u32> vertShaderCode =
-      ShaderCompiler::getCompiledShader(VERTEX_SHADER_PATH, shaderc_shader_kind::shaderc_vertex_shader);
+      ShaderCompiler::getCompiledShader(VERTEX_SHADER_PATH, shaderc_vertex_shader);
     std::vector<u32> fragShaderCode =
-      ShaderCompiler::getCompiledShader(FRAGMENT_SHADER_PATH, shaderc_shader_kind::shaderc_fragment_shader);
+      ShaderCompiler::getCompiledShader(FRAGMENT_SHADER_PATH, shaderc_fragment_shader);
 
-    vk::UniqueShaderModule vertShaderModule = createShaderModule(vertShaderCode);
+    vk::UniqueShaderModule vertShaderModule =
-    vk::UniqueShaderModule fragShaderModule = createShaderModule(fragShaderCode);
+      ShaderCompiler::createShaderModule(mDevice.get(), vertShaderCode);
+    vk::UniqueShaderModule fragShaderModule =
+      ShaderCompiler::createShaderModule(mDevice.get(), fragShaderCode);
 
     vk::PipelineShaderStageCreateInfo vertShaderStageInfo {
       .stage  = vk::ShaderStageFlagBits::eVertex,
@@ -1164,7 +1014,8 @@ class VulkanApp {
    * the buffers from which command buffer memory is allocated.
    */
   fn createCommandPool() -> void {
-    QueueFamilyIndices queueFamilyIndices = findQueueFamilies(mPhysicalDevice);
+    QueueFamilyIndices queueFamilyIndices =
+      QueueFamilyIndices::findQueueFamilies(mPhysicalDevice, mSurface.get());
 
     vk::CommandPoolCreateInfo poolInfo { .flags = vk::CommandPoolCreateFlagBits::eResetCommandBuffer,
                                          .queueFamilyIndex = queueFamilyIndices.graphics_family.value() };
@@ -1181,6 +1032,8 @@ class VulkanApp {
     vk::Format colorFormat = mSwapChainImageFormat;
 
     std::tie(mColorImage, mColorImageMemory) = createImage(
+      mDevice.get(),
+      mPhysicalDevice,
       mSwapChainExtent.width,
       mSwapChainExtent.height,
       1,
@@ -1191,7 +1044,8 @@ class VulkanApp {
       vk::MemoryPropertyFlagBits::eDeviceLocal
     );
 
-    mColorImageView = createImageView(mColorImage.get(), colorFormat, vk::ImageAspectFlagBits::eColor, 1);
+    mColorImageView =
+      createImageView(mDevice.get(), mColorImage.get(), colorFormat, vk::ImageAspectFlagBits::eColor, 1);
   }
 
   /**
@@ -1203,6 +1057,8 @@ class VulkanApp {
     vk::Format depthFormat = findDepthFormat();
 
     std::tie(mDepthImage, mDepthImageMemory) = createImage(
+      mDevice.get(),
+      mPhysicalDevice,
       mSwapChainExtent.width,
       mSwapChainExtent.height,
       1,
@@ -1213,7 +1069,8 @@ class VulkanApp {
       vk::MemoryPropertyFlagBits::eDeviceLocal
     );
 
-    mDepthImageView = createImageView(mDepthImage.get(), depthFormat, vk::ImageAspectFlagBits::eDepth, 1);
+    mDepthImageView =
+      createImageView(mDevice.get(), mDepthImage.get(), depthFormat, vk::ImageAspectFlagBits::eDepth, 1);
   }
 
   /**
@@ -1304,6 +1161,8 @@ class VulkanApp {
     copyData(stagingBufferMemory.get(), imageSize, pixels);
 
     std::tie(mTextureImage, mTextureImageMemory) = createImage(
+      mDevice.get(),
+      mPhysicalDevice,
       static_cast<u32>(texWidth),
       static_cast<u32>(texHeight),
       mMipLevels,
@@ -1316,11 +1175,23 @@ class VulkanApp {
     );
 
     transitionImageLayout(
-      mTextureImage.get(), vk::ImageLayout::eUndefined, vk::ImageLayout::eTransferDstOptimal, mMipLevels
+      mDevice.get(),
+      mCommandPool.get(),
+      mGraphicsQueue,
+      mTextureImage.get(),
+      vk::ImageLayout::eUndefined,
+      vk::ImageLayout::eTransferDstOptimal,
+      mMipLevels
     );
 
     copyBufferToImage(
-      stagingBuffer.get(), mTextureImage.get(), static_cast<u32>(texWidth), static_cast<u32>(texHeight)
+      mDevice.get(),
+      mCommandPool.get(),
+      mGraphicsQueue,
+      stagingBuffer.get(),
+      mTextureImage.get(),
+      static_cast<u32>(texWidth),
+      static_cast<u32>(texHeight)
     );
 
     generateMipmaps(mTextureImage.get(), vk::Format::eR8G8B8A8Srgb, texWidth, texHeight, mMipLevels);
@@ -1450,47 +1321,13 @@ class VulkanApp {
     endSingleTimeCommands(commandBuffer);
   }
 
-  /**
-   * @brief Gets the maximum usable sample count for multisampling.
-   *
-   * @return The maximum sample count supported by the device for both color and depth.
-   *
-   * This function determines the highest sample count that is supported by the device
-   * for both color and depth attachments.
-   */
-  fn getMaxUsableSampleCount() -> vk::SampleCountFlagBits {
-    vk::PhysicalDeviceProperties physicalDeviceProperties = mPhysicalDevice.getProperties();
-
-    vk::SampleCountFlags counts = physicalDeviceProperties.limits.framebufferColorSampleCounts &
-                                  physicalDeviceProperties.limits.framebufferDepthSampleCounts;
-
-    // Define an array of sample counts in descending order
-    const std::array<vk::SampleCountFlagBits, 7> sampleCounts = {
-      vk::SampleCountFlagBits::e64, vk::SampleCountFlagBits::e32, vk::SampleCountFlagBits::e16,
-      vk::SampleCountFlagBits::e8,  vk::SampleCountFlagBits::e4,  vk::SampleCountFlagBits::e2,
-      vk::SampleCountFlagBits::e1,
-    };
-
-    // Loop through the array and return the first supported sample count
-    for (const vk::SampleCountFlagBits& count : sampleCounts)
-      if (counts & count)
-        return count;
-
-    // Return e1 if no other sample count is supported
-    return vk::SampleCountFlagBits::e1;
-  }
-
   /**
    * @brief Creates the texture image view.
    *
    * This function creates an image view for the texture image, which can be used
    * to access the texture in shaders.
    */
-  fn createTextureImageView() -> void {
+  fn createTextureImageView() -> void {}
-    mTextureImageView = createImageView(
-      mTextureImage.get(), vk::Format::eR8G8B8A8Srgb, vk::ImageAspectFlagBits::eColor, mMipLevels
-    );
-  }
 
   /**
    * @brief Creates the texture sampler.
@@ -1521,167 +1358,6 @@ class VulkanApp {
     mTextureSampler = mDevice->createSamplerUnique(samplerInfo);
   }
 
-  /**
-   * @brief Creates a Vulkan image view.
-   *
-   * This function creates and returns a unique Vulkan image view using the provided parameters.
-   *
-   * @param image The Vulkan image for which to create the view.
-   * @param format The format of the image.
-   * @param aspectFlags The aspect flags for the image view.
-   * @param mipLevels The number of mip levels for the image view.
-   *
-   * @return vk::UniqueImageView A unique handle to the created Vulkan image view.
-   *
-   * @details
-   * The function creates an image view with the following properties:
-   * - 2D view type
-   * - Subresource range starting from base mip level 0
-   * - Single array layer starting from base array layer 0
-   */
-  fn createImageView(
-    const vk::Image&            image,
-    const vk::Format&           format,
-    const vk::ImageAspectFlags& aspectFlags,
-    const u32&                  mipLevels
-  ) -> vk::UniqueImageView {
-    return mDevice->createImageViewUnique({
-      .image            = image,
-      .viewType         = vk::ImageViewType::e2D,
-      .format           = format,
-      .subresourceRange = {
-                           .aspectMask     = aspectFlags,
-                           .baseMipLevel   = 0,
-                           .levelCount     = mipLevels,
-                           .baseArrayLayer = 0,
-                           .layerCount     = 1,
-                           },
-    });
-  }
-
-  fn createImage(
-    const u32&                     width,
-    const u32&                     height,
-    const u32&                     mipLevels,
-    const vk::SampleCountFlagBits& numSamples,
-    const vk::Format&              format,
-    const vk::ImageTiling&         tiling,
-    const vk::ImageUsageFlags&     usage,
-    const vk::MemoryPropertyFlags& properties
-  ) -> std::pair<vk::UniqueImage, vk::UniqueDeviceMemory> {
-    // Define the image creation info
-    vk::ImageCreateInfo imageInfo {
-      .imageType     = vk::ImageType::e2D,
-      .format        = format,
-      .extent        = { .width = width, .height = height, .depth = 1 },
-      .mipLevels     = mipLevels,
-      .arrayLayers   = 1,
-      .samples       = numSamples,
-      .tiling        = tiling,
-      .usage         = usage,
-      .sharingMode   = vk::SharingMode::eExclusive,
-      .initialLayout = vk::ImageLayout::eUndefined,
-    };
-
-    // Create the image
-    vk::UniqueImage image = mDevice->createImageUnique(imageInfo);
-
-    // Get the memory requirements for the image
-    vk::MemoryRequirements memRequirements = mDevice->getImageMemoryRequirements(image.get());
-
-    // Memory allocation info
-    vk::MemoryAllocateInfo allocInfo {
-      .allocationSize  = memRequirements.size,
-      .memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, properties),
-    };
-
-    // Allocate memory
-    vk::UniqueDeviceMemory imageMemory = mDevice->allocateMemoryUnique(allocInfo);
-
-    // Bind the allocated memory to the image
-    mDevice->bindImageMemory(image.get(), imageMemory.get(), 0);
-
-    // Return the unique image
-    return { std::move(image), std::move(imageMemory) };
-  }
-
-  // Transition image between layouts
-  fn transitionImageLayout(
-    const vk::Image&       image,
-    const vk::ImageLayout& oldLayout,
-    const vk::ImageLayout& newLayout,
-    const u32&             mipLevels
-  ) -> void {
-    // Create a command buffer
-    vk::CommandBuffer commandBuffer = beginSingleTimeCommands();
-
-    // Define the image memory barrier
-    vk::ImageMemoryBarrier barrier {
-      .oldLayout           = oldLayout,
-      .newLayout           = newLayout,
-      .srcQueueFamilyIndex = vk::QueueFamilyIgnored,
-      .dstQueueFamilyIndex = vk::QueueFamilyIgnored,
-      .image               = image,
-      .subresourceRange    = {
-        .aspectMask     = vk::ImageAspectFlagBits::eColor,
-        .baseMipLevel   = 0,
-        .levelCount     = mipLevels,
-        .baseArrayLayer = 0,
-        .layerCount     = 1,
-      },
-    };
-
-    // Define the source and destination stages
-    vk::PipelineStageFlags sourceStage;
-    vk::PipelineStageFlags destinationStage;
-
-    // Define the access masks
-    if (oldLayout == vk::ImageLayout::eUndefined && newLayout == vk::ImageLayout::eTransferDstOptimal) {
-      barrier.srcAccessMask = {};
-      barrier.dstAccessMask = vk::AccessFlagBits::eTransferWrite;
-
-      sourceStage      = vk::PipelineStageFlagBits::eTopOfPipe;
-      destinationStage = vk::PipelineStageFlagBits::eTransfer;
-    } else if (oldLayout == vk::ImageLayout::eTransferDstOptimal &&
-               newLayout == vk::ImageLayout::eShaderReadOnlyOptimal) {
-      barrier.srcAccessMask = vk::AccessFlagBits::eTransferWrite;
-      barrier.dstAccessMask = vk::AccessFlagBits::eShaderRead;
-
-      sourceStage      = vk::PipelineStageFlagBits::eTransfer;
-      destinationStage = vk::PipelineStageFlagBits::eFragmentShader;
-    } else {
-      // Ensure that the layout transition is supported
-      throw std::invalid_argument("Unsupported layout transition!");
-    }
-
-    // Record the pipeline barrier
-    commandBuffer.pipelineBarrier(sourceStage, destinationStage, {}, {}, {}, barrier);
-
-    // End the command buffer
-    endSingleTimeCommands(commandBuffer);
-  }
-
-  fn copyBufferToImage(const vk::Buffer& buffer, const vk::Image& image, const u32& width, const u32& height)
-    -> void {
-    vk::CommandBuffer commandBuffer = beginSingleTimeCommands();
-
-    vk::BufferImageCopy region {
-      .bufferOffset      = 0,
-      .bufferRowLength   = 0,
-      .bufferImageHeight = 0,
-      .imageSubresource  = { .aspectMask     = vk::ImageAspectFlagBits::eColor,
-                            .mipLevel       = 0,
-                            .baseArrayLayer = 0,
-                            .layerCount     = 1 },
-      .imageOffset       = { .x = 0, .y = 0, .z = 0 },
-      .imageExtent       = { .width = width, .height = height, .depth = 1 },
-    };
-
-    commandBuffer.copyBufferToImage(buffer, image, vk::ImageLayout::eTransferDstOptimal, 1, &region);
-
-    endSingleTimeCommands(commandBuffer);
-  }
-
   /**
    * @brief Loads the 3D model.
    *
@@ -2477,143 +2153,6 @@ class VulkanApp {
     return vk::PresentModeKHR::eFifo;
   }
 
-  /**
-   * @brief Chooses the swap extent (resolution) for the swap chain.
-   *
-   * @param capabilities The surface capabilities of the device.
-   * @return The chosen swap extent.
-   *
-   * This function determines the resolution of the swap chain images,
-   * taking into account the current window size and device limitations.
-   */
-  fn chooseSwapExtent(const vk::SurfaceCapabilitiesKHR& capabilities) -> vk::Extent2D {
-    // If the resolution is not UINT32_MAX, return it
-    // Otherwise, we need to set the resolution manually
-    if (capabilities.currentExtent.width != UINT32_MAX)
-      return capabilities.currentExtent;
-
-    // Get the window's resolution
-    u32 width = 0, height = 0;
-    std::tie(width, height) = mWindow->getFramebufferSize();
-
-    // Return the resolution clamped to the supported range
-    return {
-      .width  = std::clamp(width, capabilities.minImageExtent.width, capabilities.maxImageExtent.width),
-      .height = std::clamp(height, capabilities.minImageExtent.height, capabilities.maxImageExtent.height),
-    };
-  }
-
-  /**
-   * @brief Queries the swap chain support details for a physical device.
-   *
-   * @param device The physical device to query.
-   * @return A SwapChainSupportDetails struct containing the support information.
-   *
-   * This function retrieves information about the swap chain support,
-   * including surface capabilities, formats, and presentation modes.
-   */
-  fn querySwapChainSupport(const vk::PhysicalDevice& device) -> SwapChainSupportDetails {
-    return {
-      .capabilities  = device.getSurfaceCapabilitiesKHR(mSurface.get()),
-      .formats       = device.getSurfaceFormatsKHR(mSurface.get()),
-      .present_modes = device.getSurfacePresentModesKHR(mSurface.get()),
-    };
-  }
-
-  /**
-   * @brief Checks if a physical device is suitable for the application.
-   *
-   * @param device The physical device to check.
-   * @return True if the device is suitable, false otherwise.
-   *
-   * This function checks if a physical device meets all the requirements
-   * of the application, including queue families, extensions, and features.
-   */
-  fn isDeviceSuitable(const vk::PhysicalDevice& device) -> bool {
-    // Get the queue families that support the required operations
-    QueueFamilyIndices qfIndices = findQueueFamilies(device);
-
-    // Check if the device supports the required extensions
-    bool extensionsSupported = checkDeviceExtensionSupport(device);
-
-    bool swapChainAdequate = false;
-
-    if (extensionsSupported) {
-      SwapChainSupportDetails swapChainSupport = querySwapChainSupport(device);
-      // Check if the swap chain is adequate (make sure it has
-      // at least one supported format and presentation mode)
-      swapChainAdequate = !swapChainSupport.formats.empty() && !swapChainSupport.present_modes.empty();
-    }
-
-    // Check if the device supports the required features
-    vk::PhysicalDeviceFeatures supportedFeatures = device.getFeatures();
-
-    // If the device supports everything required, return true
-    return qfIndices.isComplete() && extensionsSupported && swapChainAdequate &&
-           supportedFeatures.samplerAnisotropy;
-  }
-
-  /**
-   * @brief Checks if a device supports all required extensions.
-   *
-   * @param device The physical device to check.
-   * @return True if all required extensions are supported, false otherwise.
-   *
-   * This function verifies that a physical device supports all the
-   * extensions required by the application.
-   */
-  static fn checkDeviceExtensionSupport(const vk::PhysicalDevice& device) -> bool {
-    // Get the available extensions
-    std::vector<vk::ExtensionProperties> availableExtensions = device.enumerateDeviceExtensionProperties();
-
-    // Create a set of required extension names
-    std::set<string> requiredExtensions(deviceExtensions.begin(), deviceExtensions.end());
-
-    // Remove each required extension from the set of available extensions
-    for (const vk::ExtensionProperties& extension : availableExtensions)
-      requiredExtensions.erase(extension.extensionName);
-
-    // If the set is empty, all required extensions are supported
-    return requiredExtensions.empty();
-  }
-
-  /**
-   * @brief Finds queue families that support required operations.
-   *
-   * @param device The physical device to check.
-   * @return A QueueFamilyIndices struct with the found queue family indices.
-   *
-   * This function finds queue families that support graphics operations
-   * and presentation to the window surface.
-   */
-  fn findQueueFamilies(const vk::PhysicalDevice& device) -> QueueFamilyIndices {
-    // Create a struct to store the queue family indices
-    QueueFamilyIndices qfIndices;
-
-    // Get the queue family properties
-    std::vector<vk::QueueFamilyProperties> queueFamilies = device.getQueueFamilyProperties();
-
-    // For every queue family,
-    for (u32 i = 0; i < queueFamilies.size(); i++) {
-      // Check if the queue family supports the required operations
-      if (queueFamilies[i].queueFlags & vk::QueueFlagBits::eGraphics)
-        qfIndices.graphics_family = i;
-
-      // Check if the queue family supports presentation
-      vk::Bool32 queuePresentSupport = device.getSurfaceSupportKHR(i, mSurface.get());
-
-      // If the queue family supports presentation, set the present family index
-      if (queuePresentSupport)
-        qfIndices.present_family = i;
-
-      // If the queue family supports both operations, we're done
-      if (qfIndices.isComplete())
-        break;
-    }
-
-    return qfIndices;
-  }
-
   /**
    * @brief Checks if all requested validation layers are available.
    *

src/util/shaders.hpp

@@ -1,209 +0,0 @@
-/**
- * @file shaders.hpp
- * @brief SPIR-V shader compilation and caching system.
- *
- * This file provides functionality for compiling GLSL shaders to SPIR-V and
- * managing a shader cache system. It supports automatic recompilation when
- * source files are modified and efficient caching of compiled shaders.
- */
-
-#pragma once
-
-#include <filesystem>
-#include <fmt/format.h>
-#include <fstream>
-#include <ios>
-#include <shaderc/shaderc.hpp>
-#include <string>
-#include <vector>
-
-#include "types.hpp"
-
-/**
- * @brief Handles shader compilation and caching operations.
- *
- * This class provides static methods for compiling GLSL shaders to SPIR-V
- * and managing a cache system. It automatically detects when shaders need
- * to be recompiled based on file timestamps and provides efficient caching
- * of compiled shader binaries.
- */
-class ShaderCompiler {
- public:
-  ShaderCompiler() = default;
-
-  /**
-   * @brief Compiles or retrieves a cached SPIR-V shader.
-   *
-   * @param shaderPath Path to the GLSL shader source file
-   * @param kind Type of shader (vertex, fragment, compute, etc.)
-   * @return std::vector<u32> Compiled SPIR-V binary code
-   * @throws std::runtime_error If shader compilation fails or file is not found
-   *
-   * This function performs the following steps:
-   * 1. Checks if a cached version exists and is up-to-date
-   * 2. Loads from cache if available and valid
-   * 3. Otherwise, compiles the shader from source
-   * 4. Caches the newly compiled shader for future use
-   * 5. Returns the SPIR-V binary code
-   */
-  static fn getCompiledShader(const std::filesystem::path& shaderPath, const shaderc_shader_kind& kind)
-    -> std::vector<u32> {
-    using namespace std;
-
-    // Convert to absolute path if relative
-    filesystem::path absPath = filesystem::absolute(shaderPath);
-
-    if (!filesystem::exists(absPath))
-      throw runtime_error("Shader file not found: " + absPath.string());
-
-    const string           shaderName = absPath.stem().string();
-    const filesystem::path cacheFile  = getCacheFilePath(shaderName);
-
-    // Check if we need to recompile by comparing timestamps
-    if (filesystem::exists(cacheFile)) {
-      const auto sourceTime = filesystem::last_write_time(absPath);
-      const auto cacheTime  = filesystem::last_write_time(cacheFile);
-
-      if (cacheTime >= sourceTime) {
-        // Cache is up to date, load it
-        vector<u32> spirvCode = loadCachedShader(cacheFile);
-        if (!spirvCode.empty()) {
-          fmt::println("Loaded shader from cache: {}", cacheFile.string());
-          return spirvCode;
-        }
-      }
-    }
-
-    // Need to compile the shader
-    fmt::println("Compiling shader: {}", absPath.string());
-
-    // Read shader source
-    ifstream file(absPath);
-    if (!file)
-      throw runtime_error("Failed to open shader file: " + absPath.string());
-
-    string shaderSource((istreambuf_iterator<char>(file)), istreambuf_iterator<char>());
-    file.close();
-
-    // Compile the shader
-    vector<u32> spirvCode = compileShader(shaderSource.c_str(), kind);
-
-    if (spirvCode.empty())
-      throw runtime_error("Shader compilation failed for: " + absPath.string());
-
-    // Cache the compiled SPIR-V binary
-    saveCompiledShader(spirvCode, cacheFile.string());
-    return spirvCode;
-  }
-
- private:
-  /**
-   * @brief Determines the platform-specific shader cache directory.
-   *
-   * @param shaderName Base name of the shader file
-   * @return std::filesystem::path Full path to the cache file
-   *
-   * Cache locations:
-   * - Windows: %LOCALAPPDATA%/VulkanApp/Shaders/
-   * - macOS: ~/Library/Application Support/VulkanApp/Shaders/
-   * - Linux: ~/.local/share/VulkanApp/Shaders/
-   *
-   * The directory is created if it doesn't exist.
-   */
-  static fn getCacheFilePath(const string& shaderName) -> std::filesystem::path {
-    using namespace std::filesystem;
-
-#ifdef _WIN32
-    path cacheDir = path(getenv("LOCALAPPDATA")) / "VulkanApp" / "Shaders";
-#elif defined(__APPLE__)
-    path cacheDir = path(getenv("HOME")) / "Library" / "Application Support" / "VulkanApp" / "Shaders";
-#else // Assume Linux or other UNIX-like systems
-    path cacheDir = path(getenv("HOME")) / ".local" / "share" / "VulkanApp" / "Shaders";
-#endif
-
-    if (!exists(cacheDir))
-      create_directories(cacheDir);
-
-    return cacheDir / (shaderName + ".spv");
-  }
-
-  /**
-   * @brief Loads a cached SPIR-V shader from disk.
-   *
-   * @param cachePath Path to the cached shader file
-   * @return std::vector<u32> SPIR-V binary code, empty if loading fails
-   *
-   * Reads the binary SPIR-V data from the cache file. Returns an empty
-   * vector if the file cannot be opened or read properly.
-   */
-  static fn loadCachedShader(const std::filesystem::path& cachePath) -> std::vector<u32> {
-    std::ifstream file(cachePath, std::ios::binary);
-    if (!file.is_open())
-      return {};
-
-    // Read file size
-    file.seekg(0, std::ios::end);
-    const std::streamoff fileSize = file.tellg();
-    file.seekg(0, std::ios::beg);
-
-    // Allocate buffer and read data
-    std::vector<u32> buffer(static_cast<u32>(fileSize) / sizeof(u32));
-    file.read(std::bit_cast<char*>(buffer.data()), fileSize);
-
-    return buffer;
-  }
-
-  /**
-   * @brief Compiles GLSL source code to SPIR-V.
-   *
-   * @param source GLSL shader source code
-   * @param kind Type of shader being compiled
-   * @return std::vector<u32> Compiled SPIR-V binary code
-   *
-   * Uses the shaderc library to compile GLSL to SPIR-V. The compilation
-   * is performed with optimization level set to performance and generates
-   * debug information in debug builds.
-   */
-  static fn compileShader(const char* source, shaderc_shader_kind kind) -> std::vector<u32> {
-    shaderc::Compiler       compiler;
-    shaderc::CompileOptions options;
-
-    // Set compilation options
-#ifdef NDEBUG
-    options.SetOptimizationLevel(shaderc_optimization_level_performance);
-#else
-    options.SetOptimizationLevel(shaderc_optimization_level_zero);
-    options.SetGenerateDebugInfo();
-#endif
-
-    // Compile the shader
-    shaderc::SpvCompilationResult module = compiler.CompileGlslToSpv(source, kind, "shader", options);
-
-    if (module.GetCompilationStatus() != shaderc_compilation_status_success)
-      return {};
-
-    return { module.cbegin(), module.cend() };
-  }
-
-  /**
-   * @brief Saves compiled SPIR-V code to the cache.
-   *
-   * @param spirv Compiled SPIR-V binary code
-   * @param cachePath Path where the cache file should be saved
-   * @return bool True if save was successful, false otherwise
-   *
-   * Writes the SPIR-V binary to disk for future use. Creates any
-   * necessary parent directories if they don't exist.
-   */
-  static fn saveCompiledShader(const std::vector<u32>& spirv, const std::string& cachePath) -> bool {
-    std::ofstream file(cachePath, std::ios::binary);
-    if (!file.is_open())
-      return false;
-
-    file.write(
-      std::bit_cast<const char*>(spirv.data()), static_cast<std::streamsize>(spirv.size() * sizeof(u32))
-    );
-
-    return file.good();
-  }
-};