From e06d360e2893e06001d6390525ac9f2b0f5cf28b Mon Sep 17 00:00:00 2001
From: Mars <mars@pupbrained.xyz>
Date: Tue, 15 Oct 2024 21:53:36 -0400
Subject: [PATCH] hooooly it works

---
 .gitignore   |  1 +
 src/main.cpp | 55 ++++++++++++++++++++++++++++++++++------------------
 2 files changed, 37 insertions(+), 19 deletions(-)

diff --git a/.gitignore b/.gitignore
index a1b519d..a0026ae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 .direnv/
 .vscode/
 build/
+imgui.ini
diff --git a/src/main.cpp b/src/main.cpp
index 736f2a4..63755c0 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -159,8 +159,9 @@ class VulkanApp {
   std::vector<void*>                  mUniformBuffersMapped; // Mapped pointers for the uniform buffers
 
   // Descriptor pool and sets
-  vk::UniqueDescriptorPool       mDescriptorPool; // Descriptor pool
-  std::vector<vk::DescriptorSet> mDescriptorSets; // Descriptor sets
+  vk::UniqueDescriptorPool       mDescriptorPool;      // Descriptor pool
+  vk::UniqueDescriptorPool       mImGuiDescriptorPool; // Descriptor pool for ImGui
+  std::vector<vk::DescriptorSet> mDescriptorSets;      // Descriptor sets
 
   // Command buffers
   std::vector<vk::UniqueCommandBuffer> mCommandBuffers; // Command buffers
@@ -277,25 +278,41 @@ class VulkanApp {
     // Initialize ImGui for GLFW and Vulkan
     ImGui_ImplGlfw_InitForVulkan(mWindow.get(), true);
 
-    ImGui_ImplVulkan_InitInfo initInfo = {};
-    initInfo.Instance                  = mInstance.get();
-    initInfo.PhysicalDevice            = mPhysicalDevice;
-    initInfo.Device                    = mDevice.get();
-    initInfo.QueueFamily               = findQueueFamilies(mPhysicalDevice).graphics_family.value();
-    initInfo.Queue                     = mGraphicsQueue;
-    initInfo.PipelineCache             = VK_NULL_HANDLE;
-    initInfo.DescriptorPool            = mDescriptorPool.get();
-    initInfo.RenderPass                = mRenderPass.get();
-    initInfo.MSAASamples               = static_cast<VkSampleCountFlagBits>(mMsaaSamples);
-    initInfo.Allocator                 = nullptr;
-    initInfo.MinImageCount             = MAX_FRAMES_IN_FLIGHT;
-    initInfo.ImageCount                = static_cast<uint32_t>(mSwapChainImages.size());
-    initInfo.CheckVkResultFn           = nullptr;
+    vk::DescriptorPoolSize descriptorPoolSize = {
+      .type            = vk::DescriptorType::eCombinedImageSampler,
+      .descriptorCount = 1,
+    };
+
+    vk::DescriptorPoolCreateInfo poolInfo {
+      .flags         = vk::DescriptorPoolCreateFlagBits::eFreeDescriptorSet,
+      .maxSets       = 1,
+      .poolSizeCount = 1,
+      .pPoolSizes    = &descriptorPoolSize,
+    };
+
+    mImGuiDescriptorPool = mDevice->createDescriptorPoolUnique(poolInfo);
+
+    ImGui_ImplVulkan_InitInfo initInfo = {
+      .Instance                    = mInstance.get(),
+      .PhysicalDevice              = mPhysicalDevice,
+      .Device                      = mDevice.get(),
+      .QueueFamily                 = findQueueFamilies(mPhysicalDevice).graphics_family.value(),
+      .Queue                       = mGraphicsQueue,
+      .DescriptorPool              = mImGuiDescriptorPool.get(),
+      .RenderPass                  = mRenderPass.get(),
+      .MinImageCount               = 1,
+      .ImageCount                  = static_cast<uint32_t>(mSwapChainImages.size()),
+      .MSAASamples                 = static_cast<VkSampleCountFlagBits>(mMsaaSamples),
+      .PipelineCache               = VK_NULL_HANDLE,
+      .Subpass                     = 0,
+      .UseDynamicRendering         = false,
+      .PipelineRenderingCreateInfo = {},
+      .Allocator                   = nullptr,
+      .CheckVkResultFn             = nullptr,
+      .MinAllocationSize           = 0,
+    };
 
     ImGui_ImplVulkan_Init(&initInfo);
-
-    // Upload Fonts
-    ImGui_ImplVulkan_CreateFontsTexture();
   }
 
   // Main loop