From 5222f35823caf820f83c5222aca26058872c93bd Mon Sep 17 00:00:00 2001
From: Noah Metz <noah@metznet.ca>
Date: Tue, 9 Jan 2024 23:19:04 -0700
Subject: [PATCH] Fixed resizing

---
 src/main.c | 53 ++++++++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 46 insertions(+), 7 deletions(-)

diff --git a/src/main.c b/src/main.c
index a8f903a..633ef71 100644
--- a/src/main.c
+++ b/src/main.c
@@ -1635,7 +1635,7 @@ VkCommandPool create_command_pool(VkDevice device, uint32_t queue_family) {
   return command_pool;
 }
 
-VkResult recreate_swap_chain(VulkanContext* context, VkExtent2D new_extent) {
+VkResult recreate_swap_chain(VulkanContext* context) {
   for(uint32_t i = 0; i < context->swapchain_image_count; i++) {
     vkDestroyFramebuffer(context->device, context->swapchain_framebuffers[i], 0);
     vkDestroyImageView(context->device, context->swapchain_image_views[i], 0);
@@ -1648,11 +1648,12 @@ VkResult recreate_swap_chain(VulkanContext* context, VkExtent2D new_extent) {
   free(context->swapchain_details.formats);
   free(context->swapchain_details.present_modes);
 
-  context->swapchain_extent = new_extent;
+  vkDestroyImageView(context->device, context->depth_image_view, 0);
+  deallocate_image(context->device, context->depth_image);
 
   SwapchainDetails swapchain_details = get_swapchain_details(context->physical_device, context->surface);
   if(swapchain_details.formats == 0) {
-    return 0;
+    return VK_ERROR_INITIALIZATION_FAILED;
   } else {
     context->swapchain_details = swapchain_details;
   }
@@ -1661,6 +1662,47 @@ VkResult recreate_swap_chain(VulkanContext* context, VkExtent2D new_extent) {
   context->swapchain_present_mode = choose_present_mode(context->swapchain_details);
   context->swapchain_extent = choose_swapchain_extent(context->swapchain_details);
 
+  VkExtent3D depth_extent = {
+    .width = context->swapchain_extent.width,
+    .height = context->swapchain_extent.height,
+    .depth = 1,
+  };
+
+  AllocatedImage depth_image = allocate_image(context->physical_device, context->device, VK_IMAGE_TYPE_2D, context->depth_format, depth_extent, VK_IMAGE_USAGE_DEPTH_STENCIL_ATTACHMENT_BIT, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT);
+  if(depth_image.memory == VK_NULL_HANDLE) {
+    return VK_ERROR_INITIALIZATION_FAILED;
+  } else {
+    context->depth_image = depth_image;
+  }
+
+  VkImageViewCreateInfo depth_view_info = {
+    .sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,
+    .image = depth_image.image,
+    .viewType = VK_IMAGE_VIEW_TYPE_2D,
+    .format = context->depth_format,
+    .components = {
+      .r = VK_COMPONENT_SWIZZLE_IDENTITY,
+      .g = VK_COMPONENT_SWIZZLE_IDENTITY,
+      .b = VK_COMPONENT_SWIZZLE_IDENTITY,
+      .a = VK_COMPONENT_SWIZZLE_IDENTITY,
+    },
+    .subresourceRange = {
+      .aspectMask = VK_IMAGE_ASPECT_DEPTH_BIT,
+      .baseMipLevel = 0,
+      .levelCount = 1,
+      .baseArrayLayer = 0,
+      .layerCount = 1,
+    },
+  };
+
+  VkImageView depth_image_view;
+  VkResult result = vkCreateImageView(context->device, &depth_view_info, 0, &depth_image_view);
+  if(result != VK_SUCCESS) {
+    return VK_ERROR_INITIALIZATION_FAILED;
+  } else {
+    context->depth_image_view = depth_image_view;
+  }
+
   VkSwapchainKHR swapchain = create_swapchain(context->device, context->swapchain_format, context->swapchain_present_mode, context->swapchain_extent, context->surface, context->swapchain_details.capabilities, context->queue_indices, context->swapchain);
   if(swapchain == VK_NULL_HANDLE) {
     context->swapchain = VK_NULL_HANDLE;
@@ -2965,10 +3007,7 @@ void main_loop(GLFWwindow* window, VulkanContext* context) {
 
     VkResult result = draw_frame(context);
     if(result == VK_ERROR_OUT_OF_DATE_KHR || result == VK_SUBOPTIMAL_KHR) {
-      int width, height;
-      glfwGetWindowSize(window, &width, &height);
-      VkExtent2D window_extent = {width, height};
-      recreate_swap_chain(context, window_extent);
+      recreate_swap_chain(context);
     } else if(result != VK_SUCCESS) {
       fprintf(stderr, "draw_frame error %d\n", result);
       return;