mirror of
https://github.com/Drezil/imgui.git
synced 2025-07-05 12:38:46 +02:00
Examples: Vulkan: Moved CreateOrResizeWindowData func to imgui_impl_vulkan.h
This commit is contained in:
omar
@ -18,17 +18,17 @@
|
||||
#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 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_ImplVulkan_WindowData g_WindowData;
|
||||
static ImGui_ImplVulkan_WindowData g_WindowData;
|
||||
|
||||
static void check_vk_result(VkResult err)
|
||||
{
|
||||
@ -38,137 +38,6 @@ static void check_vk_result(VkResult err)
|
||||
abort();
|
||||
}
|
||||
|
||||
static void CreateOrResizeSwapChainAndFrameBuffer(ImGui_ImplVulkan_WindowData* wd, int w, int h)
|
||||
{
|
||||
VkResult err;
|
||||
VkSwapchainKHR old_swapchain = wd->Swapchain;
|
||||
err = vkDeviceWaitIdle(g_Device);
|
||||
check_vk_result(err);
|
||||
|
||||
// Destroy old Framebuffer
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
if (wd->BackBufferView[i])
|
||||
vkDestroyImageView(g_Device, wd->BackBufferView[i], g_Allocator);
|
||||
if (wd->Framebuffer[i])
|
||||
vkDestroyFramebuffer(g_Device, wd->Framebuffer[i], g_Allocator);
|
||||
}
|
||||
wd->BackBufferCount = 0;
|
||||
if (wd->RenderPass)
|
||||
vkDestroyRenderPass(g_Device, wd->RenderPass, g_Allocator);
|
||||
|
||||
// Create Swapchain
|
||||
{
|
||||
VkSwapchainCreateInfoKHR info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_SWAPCHAIN_CREATE_INFO_KHR;
|
||||
info.surface = wd->Surface;
|
||||
info.imageFormat = wd->SurfaceFormat.format;
|
||||
info.imageColorSpace = wd->SurfaceFormat.colorSpace;
|
||||
info.imageArrayLayers = 1;
|
||||
info.imageUsage = VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
|
||||
info.imageSharingMode = VK_SHARING_MODE_EXCLUSIVE; // Assume that graphics family == present family
|
||||
info.preTransform = VK_SURFACE_TRANSFORM_IDENTITY_BIT_KHR;
|
||||
info.compositeAlpha = VK_COMPOSITE_ALPHA_OPAQUE_BIT_KHR;
|
||||
info.presentMode = wd->PresentMode;
|
||||
info.clipped = VK_TRUE;
|
||||
info.oldSwapchain = old_swapchain;
|
||||
VkSurfaceCapabilitiesKHR cap;
|
||||
err = vkGetPhysicalDeviceSurfaceCapabilitiesKHR(g_PhysicalDevice, wd->Surface, &cap);
|
||||
check_vk_result(err);
|
||||
if (cap.maxImageCount > 0)
|
||||
info.minImageCount = (cap.minImageCount + 2 < cap.maxImageCount) ? (cap.minImageCount + 2) : cap.maxImageCount;
|
||||
else
|
||||
info.minImageCount = cap.minImageCount + 2;
|
||||
|
||||
if (cap.currentExtent.width == 0xffffffff)
|
||||
{
|
||||
info.imageExtent.width = wd->Width = w;
|
||||
info.imageExtent.height = wd->Height = h;
|
||||
}
|
||||
else
|
||||
{
|
||||
info.imageExtent.width = wd->Width = cap.currentExtent.width;
|
||||
info.imageExtent.height = wd->Height = cap.currentExtent.height;
|
||||
}
|
||||
err = vkCreateSwapchainKHR(g_Device, &info, g_Allocator, &wd->Swapchain);
|
||||
check_vk_result(err);
|
||||
err = vkGetSwapchainImagesKHR(g_Device, wd->Swapchain, &wd->BackBufferCount, NULL);
|
||||
check_vk_result(err);
|
||||
IM_ASSERT(wd->BackBufferCount < IM_ARRAYSIZE(wd->BackBuffer));
|
||||
err = vkGetSwapchainImagesKHR(g_Device, wd->Swapchain, &wd->BackBufferCount, wd->BackBuffer);
|
||||
check_vk_result(err);
|
||||
}
|
||||
if (old_swapchain)
|
||||
vkDestroySwapchainKHR(g_Device, old_swapchain, g_Allocator);
|
||||
|
||||
// Create the Render Pass
|
||||
{
|
||||
VkAttachmentDescription attachment = {};
|
||||
attachment.format = wd->SurfaceFormat.format;
|
||||
attachment.samples = VK_SAMPLE_COUNT_1_BIT;
|
||||
attachment.loadOp = VK_ATTACHMENT_LOAD_OP_CLEAR;
|
||||
attachment.storeOp = VK_ATTACHMENT_STORE_OP_STORE;
|
||||
attachment.stencilLoadOp = VK_ATTACHMENT_LOAD_OP_DONT_CARE;
|
||||
attachment.stencilStoreOp = VK_ATTACHMENT_STORE_OP_DONT_CARE;
|
||||
attachment.initialLayout = VK_IMAGE_LAYOUT_UNDEFINED;
|
||||
attachment.finalLayout = VK_IMAGE_LAYOUT_PRESENT_SRC_KHR;
|
||||
VkAttachmentReference color_attachment = {};
|
||||
color_attachment.attachment = 0;
|
||||
color_attachment.layout = VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL;
|
||||
VkSubpassDescription subpass = {};
|
||||
subpass.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS;
|
||||
subpass.colorAttachmentCount = 1;
|
||||
subpass.pColorAttachments = &color_attachment;
|
||||
VkRenderPassCreateInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO;
|
||||
info.attachmentCount = 1;
|
||||
info.pAttachments = &attachment;
|
||||
info.subpassCount = 1;
|
||||
info.pSubpasses = &subpass;
|
||||
err = vkCreateRenderPass(g_Device, &info, g_Allocator, &wd->RenderPass);
|
||||
check_vk_result(err);
|
||||
}
|
||||
|
||||
// Create The Image Views
|
||||
{
|
||||
VkImageViewCreateInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO;
|
||||
info.viewType = VK_IMAGE_VIEW_TYPE_2D;
|
||||
info.format = wd->SurfaceFormat.format;
|
||||
info.components.r = VK_COMPONENT_SWIZZLE_R;
|
||||
info.components.g = VK_COMPONENT_SWIZZLE_G;
|
||||
info.components.b = VK_COMPONENT_SWIZZLE_B;
|
||||
info.components.a = VK_COMPONENT_SWIZZLE_A;
|
||||
VkImageSubresourceRange image_range = { VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1 };
|
||||
info.subresourceRange = image_range;
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
info.image = wd->BackBuffer[i];
|
||||
err = vkCreateImageView(g_Device, &info, g_Allocator, &wd->BackBufferView[i]);
|
||||
check_vk_result(err);
|
||||
}
|
||||
}
|
||||
|
||||
// Create Framebuffer
|
||||
{
|
||||
VkImageView attachment[1];
|
||||
VkFramebufferCreateInfo info = {};
|
||||
info.sType = VK_STRUCTURE_TYPE_FRAMEBUFFER_CREATE_INFO;
|
||||
info.renderPass = wd->RenderPass;
|
||||
info.attachmentCount = 1;
|
||||
info.pAttachments = attachment;
|
||||
info.width = wd->Width;
|
||||
info.height = wd->Height;
|
||||
info.layers = 1;
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
attachment[0] = wd->BackBufferView[i];
|
||||
err = vkCreateFramebuffer(g_Device, &info, g_Allocator, &wd->Framebuffer[i]);
|
||||
check_vk_result(err);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#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)
|
||||
{
|
||||
@ -226,6 +95,8 @@ static void CreateVulkanInstance(const char** extensions, uint32_t extensions_co
|
||||
|
||||
static void SetupVulkan(ImGui_ImplVulkan_WindowData* wd)
|
||||
{
|
||||
IM_ASSERT(wd->Surface != NULL);
|
||||
|
||||
VkResult err;
|
||||
|
||||
// Select GPU
|
||||
@ -276,7 +147,7 @@ static void SetupVulkan(ImGui_ImplVulkan_WindowData* wd)
|
||||
{
|
||||
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_ImplVulkan_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
|
||||
wd->SurfaceFormat = ImGui_ImplVulkanH_SelectSurfaceFormat(g_PhysicalDevice, wd->Surface, requestSurfaceImageFormat, (size_t)IM_ARRAYSIZE(requestSurfaceImageFormat), requestSurfaceColorSpace);
|
||||
}
|
||||
|
||||
// Get Present Mode
|
||||
@ -286,7 +157,7 @@ static void SetupVulkan(ImGui_ImplVulkan_WindowData* wd)
|
||||
#else
|
||||
VkPresentModeKHR present_mode = VK_PRESENT_MODE_FIFO_KHR;
|
||||
#endif
|
||||
wd->PresentMode = ImGui_ImplVulkan_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_mode, 1);
|
||||
wd->PresentMode = ImGui_ImplVulkanH_SelectPresentMode(g_PhysicalDevice, wd->Surface, &present_mode, 1);
|
||||
}
|
||||
|
||||
// Create Logical Device (with 1 queue)
|
||||
@ -379,23 +250,7 @@ static void cleanup_vulkan()
|
||||
{
|
||||
ImGui_ImplVulkan_WindowData* wd = &g_WindowData;
|
||||
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
|
||||
for (int i = 0; i < IMGUI_VK_QUEUED_FRAMES; i++)
|
||||
{
|
||||
ImGui_ImplVulkan_FrameData* fd = &wd->Frames[i];
|
||||
vkDestroyFence(g_Device, fd->Fence, g_Allocator);
|
||||
vkFreeCommandBuffers(g_Device, fd->CommandPool, 1, &fd->CommandBuffer);
|
||||
vkDestroyCommandPool(g_Device, fd->CommandPool, g_Allocator);
|
||||
vkDestroySemaphore(g_Device, fd->PresentCompleteSemaphore, g_Allocator);
|
||||
vkDestroySemaphore(g_Device, fd->RenderCompleteSemaphore, g_Allocator);
|
||||
}
|
||||
for (uint32_t i = 0; i < wd->BackBufferCount; i++)
|
||||
{
|
||||
vkDestroyImageView(g_Device, wd->BackBufferView[i], g_Allocator);
|
||||
vkDestroyFramebuffer(g_Device, wd->Framebuffer[i], g_Allocator);
|
||||
}
|
||||
vkDestroyRenderPass(g_Device, wd->RenderPass, g_Allocator);
|
||||
vkDestroySwapchainKHR(g_Device, wd->Swapchain, g_Allocator);
|
||||
vkDestroySurfaceKHR(g_Instance, wd->Surface, g_Allocator);
|
||||
ImGui_ImplVulkanH_DestroyWindowData(g_Instance, g_Device, wd, g_Allocator);
|
||||
|
||||
#ifdef IMGUI_VULKAN_DEBUG_REPORT
|
||||
// Remove the debug report callback
|
||||
@ -499,7 +354,7 @@ static void glfw_error_callback(int error, const char* description)
|
||||
|
||||
static void glfw_resize_callback(GLFWwindow*, int w, int h)
|
||||
{
|
||||
CreateOrResizeSwapChainAndFrameBuffer(&g_WindowData, w, h);
|
||||
ImGui_ImplVulkanH_CreateOrResizeWindowData(g_PhysicalDevice, g_Device, &g_WindowData, g_Allocator, w, h);
|
||||
}
|
||||
|
||||
int main(int, char**)
|
||||
@ -524,38 +379,33 @@ int main(int, char**)
|
||||
|
||||
// Create Window Surface
|
||||
ImGui_ImplVulkan_WindowData* wd = &g_WindowData;
|
||||
{
|
||||
VkResult err = glfwCreateWindowSurface(g_Instance, window, g_Allocator, &wd->Surface);
|
||||
check_vk_result(err);
|
||||
}
|
||||
VkResult err = glfwCreateWindowSurface(g_Instance, window, g_Allocator, &wd->Surface);
|
||||
check_vk_result(err);
|
||||
|
||||
SetupVulkan(wd);
|
||||
|
||||
// Create Framebuffers
|
||||
{
|
||||
int w, h;
|
||||
glfwGetFramebufferSize(window, &w, &h);
|
||||
CreateOrResizeSwapChainAndFrameBuffer(wd, w, h);
|
||||
glfwSetFramebufferSizeCallback(window, glfw_resize_callback);
|
||||
}
|
||||
int w, h;
|
||||
glfwGetFramebufferSize(window, &w, &h);
|
||||
ImGui_ImplVulkanH_CreateOrResizeWindowData(g_PhysicalDevice, g_Device, wd, g_Allocator, w, h);
|
||||
glfwSetFramebufferSizeCallback(window, glfw_resize_callback);
|
||||
|
||||
// Setup ImGui binding
|
||||
ImGui::CreateContext();
|
||||
|
||||
ImGui_ImplVulkan_InitInfo init_info = {};
|
||||
init_info.Allocator = g_Allocator;
|
||||
init_info.PhysicalDevice = g_PhysicalDevice;
|
||||
init_info.Device = g_Device;
|
||||
init_info.RenderPass = wd->RenderPass;
|
||||
init_info.PipelineCache = g_PipelineCache;
|
||||
init_info.DescriptorPool = g_DescriptorPool;
|
||||
init_info.CheckVkResultFn = check_vk_result;
|
||||
|
||||
ImGuiIO& io = ImGui::GetIO(); (void)io;
|
||||
//io.ConfigFlags |= ImGuiConfigFlags_MultiViewports;
|
||||
io.ConfigFlags |= ImGuiConfigFlags_MultiViewports;
|
||||
//io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
|
||||
|
||||
ImGui_ImplVulkan_Init(&init_info);
|
||||
ImGui_ImplVulkan_InitInfo init_info = {};
|
||||
init_info.Instance = g_Instance;
|
||||
init_info.PhysicalDevice = g_PhysicalDevice;
|
||||
init_info.Device = g_Device;
|
||||
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);
|
||||
ImGui_ImplGlfw_InitForVulkan(window, true);
|
||||
|
||||
// Setup style
|
||||
@ -683,7 +533,7 @@ int main(int, char**)
|
||||
}
|
||||
|
||||
// Cleanup
|
||||
VkResult err = vkDeviceWaitIdle(g_Device);
|
||||
err = vkDeviceWaitIdle(g_Device);
|
||||
check_vk_result(err);
|
||||
ImGui_ImplVulkan_Shutdown();
|
||||
ImGui_ImplGlfw_Shutdown();
|
||||
|
||||
Reference in New Issue
Block a user