From b948b76c8ea5ec57b6a424baa1b117c0025c0328 Mon Sep 17 00:00:00 2001 From: Miodrag Milanovic Date: Sun, 21 Oct 2018 09:28:35 +0200 Subject: add imgui library --- .../imgui/examples/example_glfw_vulkan/main.cpp | 499 +++++++++++++++++++++ 1 file changed, 499 insertions(+) create mode 100644 3rdparty/imgui/examples/example_glfw_vulkan/main.cpp (limited to '3rdparty/imgui/examples/example_glfw_vulkan/main.cpp') diff --git a/3rdparty/imgui/examples/example_glfw_vulkan/main.cpp b/3rdparty/imgui/examples/example_glfw_vulkan/main.cpp new file mode 100644 index 00000000..adaa45d5 --- /dev/null +++ b/3rdparty/imgui/examples/example_glfw_vulkan/main.cpp @@ -0,0 +1,499 @@ +// dear imgui: standalone example application for Glfw + Vulkan +// If you are new to dear imgui, see examples/README.txt and documentation at the top of imgui.cpp. + +#include "imgui.h" +#include "imgui_impl_glfw.h" +#include "imgui_impl_vulkan.h" +#include // printf, fprintf +#include // abort +#define GLFW_INCLUDE_NONE +#define GLFW_INCLUDE_VULKAN +#include +#include + +//#define IMGUI_UNLIMITED_FRAME_RATE +#ifdef _DEBUG +#define IMGUI_VULKAN_DEBUG_REPORT +#endif + +static VkAllocationCallbacks* g_Allocator = NULL; +static VkInstance g_Instance = VK_NULL_HANDLE; +static VkPhysicalDevice g_PhysicalDevice = VK_NULL_HANDLE; +static VkDevice g_Device = VK_NULL_HANDLE; +static uint32_t g_QueueFamily = (uint32_t)-1; +static VkQueue g_Queue = VK_NULL_HANDLE; +static VkDebugReportCallbackEXT g_DebugReport = VK_NULL_HANDLE; +static VkPipelineCache g_PipelineCache = VK_NULL_HANDLE; +static VkDescriptorPool g_DescriptorPool = VK_NULL_HANDLE; + +static ImGui_ImplVulkanH_WindowData g_WindowData; +static bool g_ResizeWanted = false; +static int g_ResizeWidth = 0, g_ResizeHeight = 0; + +static void check_vk_result(VkResult err) +{ + if (err == 0) return; + printf("VkResult %d\n", err); + if (err < 0) + abort(); +} + +#ifdef IMGUI_VULKAN_DEBUG_REPORT +static VKAPI_ATTR VkBool32 VKAPI_CALL debug_report(VkDebugReportFlagsEXT flags, VkDebugReportObjectTypeEXT objectType, uint64_t object, size_t location, int32_t messageCode, const char* pLayerPrefix, const char* pMessage, void* pUserData) +{ + (void)flags; (void)object; (void)location; (void)messageCode; (void)pUserData; (void)pLayerPrefix; // Unused arguments + fprintf(stderr, "[vulkan] ObjectType: %i\nMessage: %s\n\n", objectType, pMessage); + return VK_FALSE; +} +#endif // IMGUI_VULKAN_DEBUG_REPORT + +static void SetupVulkan(const char** extensions, uint32_t extensions_count) +{ + VkResult err; + + // Create Vulkan Instance + { + VkInstanceCreateInfo create_info = {}; + create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO; + create_info.enabledExtensionCount = extensions_count; + create_info.ppEnabledExtensionNames = extensions; + +#ifdef IMGUI_VULKAN_DEBUG_REPORT + // Enabling multiple validation layers grouped as LunarG standard validation + const char* layers[] = { "VK_LAYER_LUNARG_standard_validation" }; + create_info.enabledLayerCount = 1; + create_info.ppEnabledLayerNames = layers; + + // Enable debug report extension (we need additional storage, so we duplicate the user array to add our new extension to it) + const char** extensions_ext = (const char**)malloc(sizeof(const char*) * (extensions_count + 1)); + memcpy(extensions_ext, extensions, extensions_count * sizeof(const char*)); + extensions_ext[extensions_count] = "VK_EXT_debug_report"; + create_info.enabledExtensionCount = extensions_count + 1; + create_info.ppEnabledExtensionNames = extensions_ext; + + // Create Vulkan Instance + err = vkCreateInstance(&create_info, g_Allocator, &g_Instance); + check_vk_result(err); + free(extensions_ext); + + // Get the function pointer (required for any extensions) + auto vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT"); + IM_ASSERT(vkCreateDebugReportCallbackEXT != NULL); + + // Setup the debug report callback + VkDebugReportCallbackCreateInfoEXT debug_report_ci = {}; + debug_report_ci.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CALLBACK_CREATE_INFO_EXT; + debug_report_ci.flags = VK_DEBUG_REPORT_ERROR_BIT_EXT | VK_DEBUG_REPORT_WARNING_BIT_EXT | VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT; + debug_report_ci.pfnCallback = debug_report; + debug_report_ci.pUserData = NULL; + err = vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport); + check_vk_result(err); +#else + // Create Vulkan Instance without any debug feature + err = vkCreateInstance(&create_info, g_Allocator, &g_Instance); + check_vk_result(err); +#endif + } + + // Select GPU + { + uint32_t gpu_count; + err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, NULL); + check_vk_result(err); + + VkPhysicalDevice* gpus = (VkPhysicalDevice*)malloc(sizeof(VkPhysicalDevice) * gpu_count); + err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus); + check_vk_result(err); + + // If a number >1 of GPUs got reported, you should find the best fit GPU for your purpose + // e.g. VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU if available, or with the greatest memory available, etc. + // for sake of simplicity we'll just take the first one, assuming it has a graphics queue family. + g_PhysicalDevice = gpus[0]; + free(gpus); + } + + // Select graphics queue family + { + uint32_t count; + vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, NULL); + VkQueueFamilyProperties* queues = (VkQueueFamilyProperties*)malloc(sizeof(VkQueueFamilyProperties) * count); + vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, queues); + for (uint32_t i = 0; i < count; i++) + if (queues[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) + { + g_QueueFamily = i; + break; + } + free(queues); + IM_ASSERT(g_QueueFamily != -1); + } + + // Create Logical Device (with 1 queue) + { + int device_extension_count = 1; + const char* device_extensions[] = { "VK_KHR_swapchain" }; + const float queue_priority[] = { 1.0f }; + VkDeviceQueueCreateInfo queue_info[1] = {}; + queue_info[0].sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO; + queue_info[0].queueFamilyIndex = g_QueueFamily; + queue_info[0].queueCount = 1; + queue_info[0].pQueuePriorities = queue_priority; + VkDeviceCreateInfo create_info = {}; + create_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO; + create_info.queueCreateInfoCount = sizeof(queue_info) / sizeof(queue_info[0]); + create_info.pQueueCreateInfos = queue_info; + create_info.enabledExtensionCount = device_extension_count; + create_info.ppEnabledExtensionNames = device_extensions; + err = vkCreateDevice(g_PhysicalDevice, &create_info, g_Allocator, &g_Device); + check_vk_result(err); + vkGetDeviceQueue(g_Device, g_QueueFamily, 0, &g_Queue); + } + + // Create Descriptor Pool + { + VkDescriptorPoolSize pool_sizes[] = + { + { VK_DESCRIPTOR_TYPE_SAMPLER, 1000 }, + { VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1000 }, + { VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE, 1000 }, + { VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 1000 }, + { VK_DESCRIPTOR_TYPE_UNIFORM_TEXEL_BUFFER, 1000 }, + { VK_DESCRIPTOR_TYPE_STORAGE_TEXEL_BUFFER, 1000 }, + { VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER, 1000 }, + { VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 1000 }, + { VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER_DYNAMIC, 1000 }, + { VK_DESCRIPTOR_TYPE_STORAGE_BUFFER_DYNAMIC, 1000 }, + { VK_DESCRIPTOR_TYPE_INPUT_ATTACHMENT, 1000 } + }; + VkDescriptorPoolCreateInfo pool_info = {}; + pool_info.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO; + pool_info.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT; + pool_info.maxSets = 1000 * IM_ARRAYSIZE(pool_sizes); + pool_info.poolSizeCount = (uint32_t)IM_ARRAYSIZE(pool_sizes); + pool_info.pPoolSizes = pool_sizes; + err = vkCreateDescriptorPool(g_Device, &pool_info, g_Allocator, &g_DescriptorPool); + check_vk_result(err); + } +} + +static void SetupVulkanWindowData(ImGui_ImplVulkanH_WindowData* wd, VkSurfaceKHR surface, int width, int height) +{ + wd->Surface = surface; + + // Check for WSI support + VkBool32 res; + vkGetPhysicalDeviceSurfaceSupportKHR(g_PhysicalDevice, g_QueueFamily, wd->Surface, &res); + if (res != VK_TRUE) + { + fprintf(stderr, "Error no WSI support on physical device 0\n"); + exit(-1); + } + + // Select Surface Format + const VkFormat requestSurfaceImageFormat[] = { VK_FORMAT_B8G8R8A8_UNORM, VK_FORMAT_R8G8B8A8_UNORM, VK_FORMAT_B8G8R8_UNORM, VK_FORMAT_R8G8B8_UNORM }; + const VkColorSpaceKHR requestSurfaceColorSpace = VK_COLORSPACE_SRGB_NONLINEAR_KHR; + wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace); + + // Select Present Mode +#ifdef IMGUI_UNLIMITED_FRAME_RATE + VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_MAILBOX_KHR, VK_PRESENT_MODE_IMMEDIATE_KHR, VK_PRESENT_MODE_FIFO_KHR }; +#else + VkPresentModeKHR present_modes[] = { VK_PRESENT_MODE_FIFO_KHR }; +#endif + wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_modes[0], IM_ARRAYSIZE(present_modes)); + //printf("[vulkan] Selected PresentMode = %d\n", wd->PresentMode); + + // Create SwapChain, RenderPass, Framebuffer, etc. + ImGui_ImplVulkanH_CreateWindowDataCommandBuffers(g_PhysicalDevice, g_Device, g_QueueFamily, wd, g_Allocator); + ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, wd, g_Allocator, width, height); +} + +static void CleanupVulkan() +{ + ImGui_ImplVulkanH_WindowData* wd = &g_WindowData; + ImGui_ImplVulkanH_DestroyWindowData(g_Instance, g_Device, wd, g_Allocator); + vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator); + +#ifdef IMGUI_VULKAN_DEBUG_REPORT + // Remove the debug report callback + auto vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT"); + vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator); +#endif // IMGUI_VULKAN_DEBUG_REPORT + + vkDestroyDevice(g_Device, g_Allocator); + vkDestroyInstance(g_Instance, g_Allocator); +} + +static void FrameRender(ImGui_ImplVulkanH_WindowData* wd) +{ + VkResult err; + + VkSemaphore& image_acquired_semaphore = wd->Frames[wd->FrameIndex].ImageAcquiredSemaphore; + err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex); + check_vk_result(err); + + ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex]; + { + err = vkWaitForFences(g_Device, 1, &fd->Fence, VK_TRUE, UINT64_MAX); // wait indefinitely instead of periodically checking + check_vk_result(err); + + err = vkResetFences(g_Device, 1, &fd->Fence); + check_vk_result(err); + } + { + err = vkResetCommandPool(g_Device, fd->CommandPool, 0); + check_vk_result(err); + VkCommandBufferBeginInfo info = {}; + info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; + info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; + err = vkBeginCommandBuffer(fd->CommandBuffer, &info); + check_vk_result(err); + } + { + VkRenderPassBeginInfo info = {}; + info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO; + info.renderPass = wd->RenderPass; + info.framebuffer = wd->Framebuffer[wd->FrameIndex]; + info.renderArea.extent.width = wd->Width; + info.renderArea.extent.height = wd->Height; + info.clearValueCount = 1; + info.pClearValues = &wd->ClearValue; + vkCmdBeginRenderPass(fd->CommandBuffer, &info, VK_SUBPASS_CONTENTS_INLINE); + } + + // Record Imgui Draw Data and draw funcs into command buffer + ImGui_ImplVulkan_RenderDrawData(ImGui::GetDrawData(), fd->CommandBuffer); + + // Submit command buffer + vkCmdEndRenderPass(fd->CommandBuffer); + { + VkPipelineStageFlags wait_stage = VK_PIPELINE_STAGE_COLOR_ATTACHMENT_OUTPUT_BIT; + VkSubmitInfo info = {}; + info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; + info.waitSemaphoreCount = 1; + info.pWaitSemaphores = &image_acquired_semaphore; + info.pWaitDstStageMask = &wait_stage; + info.commandBufferCount = 1; + info.pCommandBuffers = &fd->CommandBuffer; + info.signalSemaphoreCount = 1; + info.pSignalSemaphores = &fd->RenderCompleteSemaphore; + + err = vkEndCommandBuffer(fd->CommandBuffer); + check_vk_result(err); + err = vkQueueSubmit(g_Queue, 1, &info, fd->Fence); + check_vk_result(err); + } +} + +static void FramePresent(ImGui_ImplVulkanH_WindowData* wd) +{ + ImGui_ImplVulkanH_FrameData* fd = &wd->Frames[wd->FrameIndex]; + VkPresentInfoKHR info = {}; + info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR; + info.waitSemaphoreCount = 1; + info.pWaitSemaphores = &fd->RenderCompleteSemaphore; + info.swapchainCount = 1; + info.pSwapchains = &wd->Swapchain; + info.pImageIndices = &wd->FrameIndex; + VkResult err = vkQueuePresentKHR(g_Queue, &info); + check_vk_result(err); +} + +static void glfw_error_callback(int error, const char* description) +{ + fprintf(stderr, "Glfw Error %d: %s\n", error, description); +} + +static void glfw_resize_callback(GLFWwindow*, int w, int h) +{ + g_ResizeWanted = true; + g_ResizeWidth = w; + g_ResizeHeight = h; +} + +int main(int, char**) +{ + // Setup window + glfwSetErrorCallback(glfw_error_callback); + if (!glfwInit()) + return 1; + + glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API); + GLFWwindow* window = glfwCreateWindow(1280, 720, "Dear ImGui GLFW+Vulkan example", NULL, NULL); + + // Setup Vulkan + if (!glfwVulkanSupported()) + { + printf("GLFW: Vulkan Not Supported\n"); + return 1; + } + uint32_t extensions_count = 0; + const char** extensions = glfwGetRequiredInstanceExtensions(&extensions_count); + SetupVulkan(extensions, extensions_count); + + // Create Window Surface + VkSurfaceKHR surface; + VkResult err = glfwCreateWindowSurface(g_Instance, window, g_Allocator, &surface); + check_vk_result(err); + + // Create Framebuffers + int w, h; + glfwGetFramebufferSize(window, &w, &h); + glfwSetFramebufferSizeCallback(window, glfw_resize_callback); + ImGui_ImplVulkanH_WindowData* wd = &g_WindowData; + SetupVulkanWindowData(wd, surface, w, h); + + // Setup Dear ImGui binding + IMGUI_CHECKVERSION(); + ImGui::CreateContext(); + ImGuiIO& io = ImGui::GetIO(); (void)io; + //io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls + //io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls + + // Setup GLFW binding + ImGui_ImplGlfw_InitForVulkan(window, true); + + // Setup Vulkan binding + ImGui_ImplVulkan_InitInfo init_info = {}; + init_info.Instance = g_Instance; + init_info.PhysicalDevice = g_PhysicalDevice; + init_info.Device = g_Device; + init_info.QueueFamily = g_QueueFamily; + init_info.Queue = g_Queue; + init_info.PipelineCache = g_PipelineCache; + init_info.DescriptorPool = g_DescriptorPool; + init_info.Allocator = g_Allocator; + init_info.CheckVkResultFn = check_vk_result; + ImGui_ImplVulkan_Init(&init_info, wd->RenderPass); + + // Setup style + ImGui::StyleColorsDark(); + //ImGui::StyleColorsClassic(); + + // Load Fonts + // - If no fonts are loaded, dear imgui will use the default font. You can also load multiple fonts and use ImGui::PushFont()/PopFont() to select them. + // - AddFontFromFileTTF() will return the ImFont* so you can store it if you need to select the font among multiple. + // - If the file cannot be loaded, the function will return NULL. Please handle those errors in your application (e.g. use an assertion, or display an error and quit). + // - The fonts will be rasterized at a given size (w/ oversampling) and stored into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which ImGui_ImplXXXX_NewFrame below will call. + // - Read 'misc/fonts/README.txt' for more instructions and details. + // - Remember that in C/C++ if you want to include a backslash \ in a string literal you need to write a double backslash \\ ! + //io.Fonts->AddFontDefault(); + //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f); + //io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f); + //io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f); + //io.Fonts->AddFontFromFileTTF("../../misc/fonts/ProggyTiny.ttf", 10.0f); + //ImFont* font = io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese()); + //IM_ASSERT(font != NULL); + + // Upload Fonts + { + // Use any command queue + VkCommandPool command_pool = wd->Frames[wd->FrameIndex].CommandPool; + VkCommandBuffer command_buffer = wd->Frames[wd->FrameIndex].CommandBuffer; + + err = vkResetCommandPool(g_Device, command_pool, 0); + check_vk_result(err); + VkCommandBufferBeginInfo begin_info = {}; + begin_info.sType = VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO; + begin_info.flags |= VK_COMMAND_BUFFER_USAGE_ONE_TIME_SUBMIT_BIT; + err = vkBeginCommandBuffer(command_buffer, &begin_info); + check_vk_result(err); + + ImGui_ImplVulkan_CreateFontsTexture(command_buffer); + + VkSubmitInfo end_info = {}; + end_info.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO; + end_info.commandBufferCount = 1; + end_info.pCommandBuffers = &command_buffer; + err = vkEndCommandBuffer(command_buffer); + check_vk_result(err); + err = vkQueueSubmit(g_Queue, 1, &end_info, VK_NULL_HANDLE); + check_vk_result(err); + + err = vkDeviceWaitIdle(g_Device); + check_vk_result(err); + ImGui_ImplVulkan_InvalidateFontUploadObjects(); + } + + bool show_demo_window = true; + bool show_another_window = false; + ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f); + + // Main loop + while (!glfwWindowShouldClose(window)) + { + // Poll and handle events (inputs, window resize, etc.) + // You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs. + // - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application. + // - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application. + // Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags. + glfwPollEvents(); + if (g_ResizeWanted) + { + ImGui_ImplVulkanH_CreateWindowDataSwapChainAndFramebuffer(g_PhysicalDevice, g_Device, &g_WindowData, g_Allocator, g_ResizeWidth, g_ResizeHeight); + g_ResizeWanted = false; + } + + // Start the Dear ImGui frame + ImGui_ImplVulkan_NewFrame(); + ImGui_ImplGlfw_NewFrame(); + ImGui::NewFrame(); + + // 1. Show the big demo window (Most of the sample code is in ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear ImGui!). + if (show_demo_window) + ImGui::ShowDemoWindow(&show_demo_window); + + // 2. Show a simple window that we create ourselves. We use a Begin/End pair to created a named window. + { + static float f = 0.0f; + static int counter = 0; + + ImGui::Begin("Hello, world!"); // Create a window called "Hello, world!" and append into it. + + ImGui::Text("This is some useful text."); // Display some text (you can use a format strings too) + ImGui::Checkbox("Demo Window", &show_demo_window); // Edit bools storing our window open/close state + ImGui::Checkbox("Another Window", &show_another_window); + + ImGui::SliderFloat("float", &f, 0.0f, 1.0f); // Edit 1 float using a slider from 0.0f to 1.0f + ImGui::ColorEdit3("clear color", (float*)&clear_color); // Edit 3 floats representing a color + + if (ImGui::Button("Button")) // Buttons return true when clicked (most widgets return true when edited/activated) + counter++; + ImGui::SameLine(); + ImGui::Text("counter = %d", counter); + + ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / ImGui::GetIO().Framerate, ImGui::GetIO().Framerate); + ImGui::End(); + } + + // 3. Show another simple window. + if (show_another_window) + { + ImGui::Begin("Another Window", &show_another_window); // Pass a pointer to our bool variable (the window will have a closing button that will clear the bool when clicked) + ImGui::Text("Hello from another window!"); + if (ImGui::Button("Close Me")) + show_another_window = false; + ImGui::End(); + } + + // Rendering + ImGui::Render(); + memcpy(&wd->ClearValue.color.float32[0], &clear_color, 4 * sizeof(float)); + FrameRender(wd); + + FramePresent(wd); + } + + // Cleanup + err = vkDeviceWaitIdle(g_Device); + check_vk_result(err); + ImGui_ImplVulkan_Shutdown(); + ImGui_ImplGlfw_Shutdown(); + ImGui::DestroyContext(); + CleanupVulkan(); + + glfwDestroyWindow(window); + glfwTerminate(); + + return 0; +} -- cgit v1.2.3