pdch/Atom
1
0
Fork 0
mirror of https://github.com/54108/Atom.git synced 2025-04-13 01:46:05 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

添加项目基础结构，包括CMake配置、头文件和实现文件，新增.gitignore和README文档

Browse Source
This commit is contained in:
陈培栋 2024-09-16 01:26:08 +08:00
commit ac77711dd1
7 changed files with 806 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.gitignore vendored Normal file
View File

@ -0,0 +1,2 @@
.cache
build

41
CMakeLists.txt Normal file
View File

@ -0,0 +1,41 @@
cmake_minimum_required(VERSION 3.5)
project(atom C CXX)
if(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE Debug CACHE STRING "" FORCE)
endif()
set (CMAKE_CXX_STANDARD 23)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DVK_PROTOTYPES")
set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DVK_PROTOTYPES")
set (CMAKE_EXPORT_COMPILE_COMMANDS ON)
# GLFW
set(GLFW_DIR glfw) # Set this to point to an up-to-date GLFW repo
option(GLFW_BUILD_EXAMPLES "Build the GLFW example programs" OFF)
option(GLFW_BUILD_TESTS "Build the GLFW test programs" OFF)
option(GLFW_BUILD_DOCS "Build the GLFW documentation" OFF)
option(GLFW_INSTALL "Generate installation target" OFF)
option(GLFW_DOCUMENT_INTERNALS "Include internals in documentation" OFF)
add_subdirectory(${GLFW_DIR} binary_dir EXCLUDE_FROM_ALL)
include_directories(${GLFW_DIR}/include)
# Dear ImGui
set(IMGUI_DIR imgui)
include_directories(${IMGUI_DIR} ${IMGUI_DIR}/backends)
# Libraries
find_package(Vulkan REQUIRED)
#find_library(VULKAN_LIBRARY
#NAMES vulkan vulkan-1)
#set(LIBRARIES "glfw;${VULKAN_LIBRARY}")
set(LIBRARIES "glfw;Vulkan::Vulkan")
# Use vulkan headers from glfw:
include_directories(${GLFW_DIR}/deps)
file(GLOB sources *.cpp)
add_executable(atom ${sources} ${IMGUI_DIR}/backends/imgui_impl_glfw.cpp ${IMGUI_DIR}/backends/imgui_impl_vulkan.cpp ${IMGUI_DIR}/imgui.cpp ${IMGUI_DIR}/imgui_draw.cpp ${IMGUI_DIR}/imgui_demo.cpp ${IMGUI_DIR}/imgui_tables.cpp ${IMGUI_DIR}/imgui_widgets.cpp)
target_link_libraries(atom ${LIBRARIES})
target_compile_definitions(atom PUBLIC -DImTextureID=ImU64)

BIN
HYWenHei-85W.ttf Normal file
View File

Binary file not shown.

77
atom.cpp Normal file
View File

@ -0,0 +1,77 @@
#include "atom.h"
#include "imgui.h"
void InitStyle(ImGuiStyle &style)
{
ImVec4 *colors = style.Colors;
colors[ImGuiCol_FrameBg] = ImVec4(0.16f, 0.16f, 0.17f, 1.00f);
colors[ImGuiCol_FrameBgHovered] = ImVec4(0.37f, 0.36f, 0.36f, 102.00f);
colors[ImGuiCol_FrameBgActive] = ImVec4(0.10f, 0.10f, 0.10f, 171.00f);
colors[ImGuiCol_TitleBgActive] = ImVec4(0.20f, 0.20f, 0.20f, 255.00f);
colors[ImGuiCol_CheckMark] = ImVec4(0.61f, 0.61f, 0.61f, 1.00f);
colors[ImGuiCol_SliderGrab] = ImVec4(0.64f, 0.64f, 0.64f, 1.00f);
colors[ImGuiCol_SliderGrabActive] = ImVec4(0.31f, 0.31f, 0.31f, 1.00f);
colors[ImGuiCol_Button] = ImVec4(0.22f, 0.22f, 0.22f, 0.40f);
colors[ImGuiCol_ButtonHovered] = ImVec4(0.29f, 0.29f, 0.29f, 1.00f);
colors[ImGuiCol_ButtonActive] = ImVec4(0.13f, 0.13f, 0.13f, 1.00f);
colors[ImGuiCol_Header] = ImVec4(0.45f, 0.45f, 0.45f, 0.31f);
colors[ImGuiCol_HeaderHovered] = ImVec4(0.55f, 0.55f, 0.55f, 0.80f);
colors[ImGuiCol_HeaderActive] = ImVec4(0.09f, 0.09f, 0.09f, 1.00f);
colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.20f);
colors[ImGuiCol_ResizeGripHovered] = ImVec4(0.46f, 0.46f, 0.46f, 0.67f);
colors[ImGuiCol_ResizeGripActive] = ImVec4(0.17f, 0.17f, 0.17f, 0.95f);
colors[ImGuiCol_SeparatorActive] = ImVec4(0.42f, 0.42f, 0.42f, 1.00f);
colors[ImGuiCol_SeparatorHovered] = ImVec4(0.50f, 0.50f, 0.50f, 0.78f);
colors[ImGuiCol_TabHovered] = ImVec4(0.45f, 0.45f, 0.45f, 0.80f);
colors[ImGuiCol_TabActive] = ImVec4(0.28f, 0.28f, 0.28f, 1.00f);
colors[ImGuiCol_TabUnfocusedActive] = ImVec4(0.19f, 0.19f, 0.19f, 1.00f);
colors[ImGuiCol_DockingPreview] = ImVec4(0.51f, 0.51f, 0.51f, 0.70f);
colors[ImGuiCol_Tab] = ImVec4(0.21f, 0.21f, 0.21f, 0.86f);
colors[ImGuiCol_TabUnfocused] = ImVec4(0.15f, 0.15f, 0.15f, 0.97f);
colors[ImGuiCol_NavHighlight] = ImVec4(1.00f, 0.40f, 0.13f, 1.00f);
colors[ImGuiCol_TextSelectedBg] = ImVec4(0.45f, 1.00f, 0.85f, 0.35f);
style.WindowRounding = 4;
style.FrameRounding = 4;
style.GrabRounding = 3;
style.ScrollbarSize = 7;
style.ScrollbarRounding = 0;
}
void DrawTitleBar(const char *title, bool &p_open)
{
ImGuiWindow *window = ImGui::GetCurrentWindow();
if (window->SkipItems)
return;
ImGuiIO &io = ImGui::GetIO();
(void)io;
// 绘制左上角的文字
ImGui::Text("%s", title);
// ImGui::SameLine();
// ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
// 计算关闭按钮位置
float button_padding = 5.0f; // 关闭按钮距离边框的距离
ImVec2 close_pos = ImVec2(window->Pos.x + window->Size.x - ImGui::GetStyle().FramePadding.x - ImGui::GetFrameHeight() - button_padding, window->Pos.y + ImGui::GetStyle().FramePadding.y + button_padding);
ImGui::SetCursorScreenPos(close_pos);
// 绘制关闭按钮
bool close_clicked = ImGui::InvisibleButton("##close_button", ImVec2(ImGui::GetFrameHeight(), ImGui::GetFrameHeight()));
if (ImGui::IsItemHovered())
{
ImGui::SetMouseCursor(ImGuiMouseCursor_Hand); // 更改鼠标光标
ImGui::SetTooltip("关闭窗口");
}
// 绘制关闭按钮的图标（一个简单的'X'）
ImDrawList *draw_list = ImGui::GetWindowDrawList();
ImVec2 close_center = ImVec2(close_pos.x + ImGui::GetFrameHeight() * 0.5f, close_pos.y + ImGui::GetFrameHeight() * 0.5f);
float cross_extent = ImGui::GetFrameHeight() * 0.3f * 0.7071f;
draw_list->AddLine(ImVec2(close_center.x - cross_extent, close_center.y - cross_extent), ImVec2(close_center.x + cross_extent, close_center.y + cross_extent), IM_COL32(255, 255, 255, 255), 1.0f);
draw_list->AddLine(ImVec2(close_center.x + cross_extent, close_center.y - cross_extent), ImVec2(close_center.x - cross_extent, close_center.y + cross_extent), IM_COL32(255, 255, 255, 255), 1.0f);
// 如果关闭按钮被点击，将布尔值设置为 false
if (close_clicked)
p_open = false;
}

20
atom.h Normal file
View File

@ -0,0 +1,20 @@
#ifndef ATOM_H
#define ATOM_H
#include "imgui.h"
#include "imgui_internal.h"
#include "imgui_impl_glfw.h"
#include "imgui_impl_vulkan.h"
#include "imstb_truetype.h"
#include <iostream>
#include <vector>
#include <cstdlib>
#define GLFW_INCLUDE_NONE
#define GLFW_INCLUDE_VULKAN
#include <GLFW/glfw3.h>
void InitStyle(ImGuiStyle &style);
void DrawTitleBar(const char *title, bool &p_open);
#endif

661
main.cpp Normal file
View File

@ -0,0 +1,661 @@
// Dear ImGui: standalone example application for Glfw + Vulkan
// Learn about Dear ImGui:
// - FAQ https://dearimgui.com/faq
// - Getting Started https://dearimgui.com/getting-started
// - Documentation https://dearimgui.com/docs (same as your local docs/ folder).
// - Introduction, links and more at the top of imgui.cpp
// Important note to the reader who wish to integrate imgui_impl_vulkan.cpp/.h in their own engine/app.
// - Common ImGui_ImplVulkan_XXX functions and structures are used to interface with imgui_impl_vulkan.cpp/.h.
// You will use those if you want to use this rendering backend in your engine/app.
// - Helper ImGui_ImplVulkanH_XXX functions and structures are only used by this example (main.cpp) and by
// the backend itself (imgui_impl_vulkan.cpp), but should PROBABLY NOT be used by your own engine/app code.
// Read comments in imgui_impl_vulkan.h.
#include "atom.h"
#include "imgui.h"
#include <vector>
// Volk headers
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
#define VOLK_IMPLEMENTATION
#include <volk.h>
#endif
// [Win32] Our example includes a copy of glfw3.lib pre-compiled with VS2010 to maximize ease of testing and compatibility with old VS compilers.
// To link with VS2010-era libraries, VS2015+ requires linking with legacy_stdio_definitions.lib, which we do using this pragma.
// Your own project should not be affected, as you are likely to link with a newer binary of GLFW that is adequate for your version of Visual Studio.
#if defined(_MSC_VER) && (_MSC_VER >= 1900) && !defined(IMGUI_DISABLE_WIN32_FUNCTIONS)
#pragma comment(lib, "legacy_stdio_definitions")
#endif
// #define APP_USE_UNLIMITED_FRAME_RATE
#ifdef _DEBUG
#define APP_USE_VULKAN_DEBUG_REPORT
#endif
// Data
static VkAllocationCallbacks *g_Allocator = nullptr;
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_Window g_MainWindowData;
static int g_MinImageCount = 2;
static bool g_SwapChainRebuild = false;
static void glfw_error_callback(int error, const char *description)
{
fprintf(stderr, "GLFW Error %d: %s\n", error, description);
}
static void check_vk_result(VkResult err)
{
if (err == 0)
return;
fprintf(stderr, "[vulkan] Error: VkResult = %d\n", err);
if (err < 0)
abort();
}
#ifdef APP_USE_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] Debug report from ObjectType: %i\nMessage: %s\n\n", objectType, pMessage);
return VK_FALSE;
}
#endif // APP_USE_VULKAN_DEBUG_REPORT
static bool IsExtensionAvailable(const ImVector<VkExtensionProperties> &properties, const char *extension)
{
for (const VkExtensionProperties &p : properties)
if (strcmp(p.extensionName, extension) == 0)
return true;
return false;
}
static VkPhysicalDevice SetupVulkan_SelectPhysicalDevice()
{
uint32_t gpu_count;
VkResult err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, nullptr);
check_vk_result(err);
IM_ASSERT(gpu_count > 0);
ImVector<VkPhysicalDevice> gpus;
gpus.resize(gpu_count);
err = vkEnumeratePhysicalDevices(g_Instance, &gpu_count, gpus.Data);
check_vk_result(err);
// If a number >1 of GPUs got reported, find discrete GPU if present, or use first one available. This covers
// most common cases (multi-gpu/integrated+dedicated graphics). Handling more complicated setups (multiple
// dedicated GPUs) is out of scope of this sample.
for (VkPhysicalDevice &device : gpus)
{
VkPhysicalDeviceProperties properties;
vkGetPhysicalDeviceProperties(device, &properties);
if (properties.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU)
return device;
}
// Use first GPU (Integrated) is a Discrete one is not available.
if (gpu_count > 0)
return gpus[0];
return VK_NULL_HANDLE;
}
static void SetupVulkan(ImVector<const char *> instance_extensions)
{
VkResult err;
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
volkInitialize();
#endif
// Create Vulkan Instance
{
VkInstanceCreateInfo create_info = {};
create_info.sType = VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO;
// Enumerate available extensions
uint32_t properties_count;
ImVector<VkExtensionProperties> properties;
vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, nullptr);
properties.resize(properties_count);
err = vkEnumerateInstanceExtensionProperties(nullptr, &properties_count, properties.Data);
check_vk_result(err);
// Enable required extensions
if (IsExtensionAvailable(properties, VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME))
instance_extensions.push_back(VK_KHR_GET_PHYSICAL_DEVICE_PROPERTIES_2_EXTENSION_NAME);
#ifdef VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME
if (IsExtensionAvailable(properties, VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME))
{
instance_extensions.push_back(VK_KHR_PORTABILITY_ENUMERATION_EXTENSION_NAME);
create_info.flags |= VK_INSTANCE_CREATE_ENUMERATE_PORTABILITY_BIT_KHR;
}
#endif
// Enabling validation layers
#ifdef APP_USE_VULKAN_DEBUG_REPORT
const char *layers[] = {"VK_LAYER_KHRONOS_validation"};
create_info.enabledLayerCount = 1;
create_info.ppEnabledLayerNames = layers;
instance_extensions.push_back("VK_EXT_debug_report");
#endif
// Create Vulkan Instance
create_info.enabledExtensionCount = (uint32_t)instance_extensions.Size;
create_info.ppEnabledExtensionNames = instance_extensions.Data;
err = vkCreateInstance(&create_info, g_Allocator, &g_Instance);
check_vk_result(err);
#ifdef IMGUI_IMPL_VULKAN_USE_VOLK
volkLoadInstance(g_Instance);
#endif
// Setup the debug report callback
#ifdef APP_USE_VULKAN_DEBUG_REPORT
auto f_vkCreateDebugReportCallbackEXT = (PFN_vkCreateDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkCreateDebugReportCallbackEXT");
IM_ASSERT(f_vkCreateDebugReportCallbackEXT != nullptr);
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 = nullptr;
err = f_vkCreateDebugReportCallbackEXT(g_Instance, &debug_report_ci, g_Allocator, &g_DebugReport);
check_vk_result(err);
#endif
}
// Select Physical Device (GPU)
g_PhysicalDevice = SetupVulkan_SelectPhysicalDevice();
// Select graphics queue family
{
uint32_t count;
vkGetPhysicalDeviceQueueFamilyProperties(g_PhysicalDevice, &count, nullptr);
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 != (uint32_t)-1);
}
// Create Logical Device (with 1 queue)
{
ImVector<const char *> device_extensions;
device_extensions.push_back("VK_KHR_swapchain");
// Enumerate physical device extension
uint32_t properties_count;
ImVector<VkExtensionProperties> properties;
vkEnumerateDeviceExtensionProperties(g_PhysicalDevice, nullptr, &properties_count, nullptr);
properties.resize(properties_count);
vkEnumerateDeviceExtensionProperties(g_PhysicalDevice, nullptr, &properties_count, properties.Data);
#ifdef VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME
if (IsExtensionAvailable(properties, VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME))
device_extensions.push_back(VK_KHR_PORTABILITY_SUBSET_EXTENSION_NAME);
#endif
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 = (uint32_t)device_extensions.Size;
create_info.ppEnabledExtensionNames = device_extensions.Data;
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
// The example only requires a single combined image sampler descriptor for the font image and only uses one descriptor set (for that)
// If you wish to load e.g. additional textures you may need to alter pools sizes.
{
VkDescriptorPoolSize pool_sizes[] =
{
{VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1},
};
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 = 1;
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);
}
}
// All the ImGui_ImplVulkanH_XXX structures/functions are optional helpers used by the demo.
// Your real engine/app may not use them.
static void SetupVulkanWindow(ImGui_ImplVulkanH_Window *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 APP_USE_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.
IM_ASSERT(g_MinImageCount >= 2);
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, wd, g_QueueFamily, g_Allocator, width, height, g_MinImageCount);
}
static void CleanupVulkan()
{
vkDestroyDescriptorPool(g_Device, g_DescriptorPool, g_Allocator);
#ifdef APP_USE_VULKAN_DEBUG_REPORT
// Remove the debug report callback
auto f_vkDestroyDebugReportCallbackEXT = (PFN_vkDestroyDebugReportCallbackEXT)vkGetInstanceProcAddr(g_Instance, "vkDestroyDebugReportCallbackEXT");
f_vkDestroyDebugReportCallbackEXT(g_Instance, g_DebugReport, g_Allocator);
#endif // APP_USE_VULKAN_DEBUG_REPORT
vkDestroyDevice(g_Device, g_Allocator);
vkDestroyInstance(g_Instance, g_Allocator);
}
static void CleanupVulkanWindow()
{
ImGui_ImplVulkanH_DestroyWindow(g_Instance, g_Device, &g_MainWindowData, g_Allocator);
}
static void FrameRender(ImGui_ImplVulkanH_Window *wd, ImDrawData *draw_data)
{
VkResult err;
VkSemaphore image_acquired_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].ImageAcquiredSemaphore;
VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
err = vkAcquireNextImageKHR(g_Device, wd->Swapchain, UINT64_MAX, image_acquired_semaphore, VK_NULL_HANDLE, &wd->FrameIndex);
if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
{
g_SwapChainRebuild = true;
return;
}
check_vk_result(err);
ImGui_ImplVulkanH_Frame *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 = fd->Framebuffer;
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 dear imgui primitives into command buffer
ImGui_ImplVulkan_RenderDrawData(draw_data, 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 = &render_complete_semaphore;
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_Window *wd)
{
if (g_SwapChainRebuild)
return;
VkSemaphore render_complete_semaphore = wd->FrameSemaphores[wd->SemaphoreIndex].RenderCompleteSemaphore;
VkPresentInfoKHR info = {};
info.sType = VK_STRUCTURE_TYPE_PRESENT_INFO_KHR;
info.waitSemaphoreCount = 1;
info.pWaitSemaphores = &render_complete_semaphore;
info.swapchainCount = 1;
info.pSwapchains = &wd->Swapchain;
info.pImageIndices = &wd->FrameIndex;
VkResult err = vkQueuePresentKHR(g_Queue, &info);
if (err == VK_ERROR_OUT_OF_DATE_KHR || err == VK_SUBOPTIMAL_KHR)
{
g_SwapChainRebuild = true;
return;
}
check_vk_result(err);
wd->SemaphoreIndex = (wd->SemaphoreIndex + 1) % wd->SemaphoreCount; // Now we can use the next set of semaphores
}
// Main code
int main(int, char **)
{
glfwSetErrorCallback(glfw_error_callback);
if (!glfwInit())
return 1;
// 设置 offscreen context 的标志位
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
// Create window with Vulkan context
glfwWindowHint(GLFW_CLIENT_API, GLFW_NO_API);
GLFWwindow *window = glfwCreateWindow(1280, 720, "atom", nullptr, nullptr);
if (!glfwVulkanSupported())
{
printf("GLFW: Vulkan Not Supported\n");
return 1;
}
ImVector<const char *> extensions;
uint32_t extensions_count = 0;
const char **glfw_extensions = glfwGetRequiredInstanceExtensions(&extensions_count);
for (uint32_t i = 0; i < extensions_count; i++)
extensions.push_back(glfw_extensions[i]);
SetupVulkan(extensions);
// 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);
ImGui_ImplVulkanH_Window *wd = &g_MainWindowData;
SetupVulkanWindow(wd, surface, w, h);
// Setup Dear ImGui context
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGuiIO &io = ImGui::GetIO();
(void)io;
io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls
io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable; // Enable Docking
io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable; // Enable Multi-Viewport / Platform Windows
io.ConfigViewportsNoAutoMerge = true;
// io.ConfigViewportsNoTaskBarIcon = true;
// Setup Dear ImGui style
ImGui::StyleColorsDark();
// ImGui::StyleColorsLight();
bool window_is_open = true;
// When viewports are enabled we tweak WindowRounding/WindowBg so platform windows can look identical to regular ones.
ImGuiStyle &style = ImGui::GetStyle();
InitStyle(style);
// Setup Platform/Renderer backends
ImGui_ImplGlfw_InitForVulkan(window, true);
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.RenderPass = wd->RenderPass;
init_info.Subpass = 0;
init_info.MinImageCount = g_MinImageCount;
init_info.ImageCount = wd->ImageCount;
init_info.MSAASamples = VK_SAMPLE_COUNT_1_BIT;
init_info.Allocator = g_Allocator;
init_info.CheckVkResultFn = check_vk_result;
ImGui_ImplVulkan_Init(&init_info);
// Load Fonts
io.Fonts->AddFontFromFileTTF("../HYWenHei-85W.ttf", 36.0, nullptr, io.Fonts->GetGlyphRangesChineseFull());
// Main loop
while (window_is_open)
{
// 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, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
glfwPollEvents();
// Resize swap chain?
int fb_width, fb_height;
glfwGetFramebufferSize(window, &fb_width, &fb_height);
if (fb_width > 0 && fb_height > 0 && (g_SwapChainRebuild || g_MainWindowData.Width != fb_width || g_MainWindowData.Height != fb_height))
{
ImGui_ImplVulkan_SetMinImageCount(g_MinImageCount);
ImGui_ImplVulkanH_CreateOrResizeWindow(g_Instance, g_PhysicalDevice, g_Device, &g_MainWindowData, g_QueueFamily, g_Allocator, fb_width, fb_height, g_MinImageCount);
g_MainWindowData.FrameIndex = 0;
g_SwapChainRebuild = false;
}
if (glfwGetWindowAttrib(window, GLFW_ICONIFIED) != 0)
{
ImGui_ImplGlfw_Sleep(10);
continue;
}
// Start the Dear ImGui frame
ImGui_ImplVulkan_NewFrame();
ImGui_ImplGlfw_NewFrame();
ImGui::NewFrame();
// ImGui::DockSpaceOverViewport();
ImGuiWindowFlags window_flags = 0;
window_flags |= ImGuiWindowFlags_NoTitleBar;
// 获取主显示器
GLFWmonitor *primary_monitor = glfwGetPrimaryMonitor();
if (primary_monitor)
{
// 获取显示器的工作区大小
int workarea_x, workarea_y, workarea_width, workarea_height;
glfwGetMonitorWorkarea(primary_monitor, &workarea_x, &workarea_y, &workarea_width, &workarea_height);
// 获取显示器的分辨率
const GLFWvidmode *mode = glfwGetVideoMode(primary_monitor);
// 设置窗口的最小和最大大小
ImVec2 min_window_size = ImVec2(400, 300); // 最小窗口大小
ImVec2 max_window_size = ImVec2(workarea_width * 0.8f, workarea_height * 0.8f); // 最大窗口大小
ImGui::SetNextWindowSizeConstraints(min_window_size, max_window_size);
}
// 2. Show a simple window that we create ourselves. We use a Begin/End pair to create a named window.
{
ImGui::Begin("atom", nullptr, window_flags); // Create a window called "Hello, world!" and append into it.
auto str = "Atom";
DrawTitleBar(str, window_is_open);
static float left_pane_width = 200.0f; // 初始左侧窗口宽度
float min_pane_width = 100.0f; // 最小窗口宽度
float max_pane_width = ImGui::GetContentRegionAvail().x - min_pane_width; // 最大窗口宽度
static float right_pane_height = 200.0f; // 初始右侧下窗口高度
float min_pane_height = 100.0f; // 最小窗口高度
float max_pane_height = ImGui::GetContentRegionAvail().y - min_pane_height; // 最大窗口高度
ImGui::BeginGroup(); // 开始一个组
// 左侧的可滑动列表
ImGui::BeginChild("Left Pane", ImVec2(left_pane_width, 0), true, ImGuiWindowFlags_NoMove);
static int selected_left = 0;
static std::vector<std::string> items_left = {"Item 1", "Item 2", "Item 3", "Item 4", "Item 5"};
for (int i = 0; i < items_left.size(); i++)
{
if (ImGui::Selectable(items_left[i].c_str(), selected_left == i))
selected_left = i;
}
// 添加一个加号按钮
if (ImGui::Button("+", ImVec2(ImGui::GetContentRegionAvail().x, 0)))
{
items_left.push_back("New Item " + std::to_string(items_left.size() + 1));
}
ImGui::EndChild();
ImGui::EndGroup(); // 结束组
ImGui::SameLine();
ImGui::BeginGroup();
// 分割器
ImGui::InvisibleButton("splitter_vertical", ImVec2(1.0f, -1.0f));
if (ImGui::IsItemHovered())
{
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeEW); // 更改鼠标光标
}
if (ImGui::IsItemActive())
{
left_pane_width += ImGui::GetIO().MouseDelta.x;
if (left_pane_width < min_pane_width)
left_pane_width = min_pane_width;
if (left_pane_width > max_pane_width)
left_pane_width = max_pane_width;
}
ImGui::EndGroup();
ImGui::SameLine();
ImGui::BeginGroup(); // 开始一个组
// 右侧的可滑动列表
auto temp = ImGui::GetContentRegionAvail().y - right_pane_height - 12.0f;
ImGui::BeginChild("Right Pane", ImVec2(0, temp), true, ImGuiWindowFlags_NoMove);
static int selected_right = 0;
std::vector<std::string> items_right = {"Item A", "Item B", "Item C", "Item D", "Item E"};
for (int i = 0; i < items_right.size(); i++)
{
if (ImGui::Selectable(items_right[i].c_str(), selected_right == i, ImGuiSelectableFlags_AllowDoubleClick))
if (ImGui::IsItemHovered() && ImGui::IsMouseDoubleClicked(0))
{
// Do stuff on Selectable() double click.
selected_right = i;
ImGui::SetClipboardText(items_right[i].c_str());
selected_right = -1;
}
}
ImGui::EndChild();
// 添加一个输入框
// 分割器
ImGui::InvisibleButton("splitter_horizontal", ImVec2(-1.0f, 4.0f));
if (ImGui::IsItemHovered())
{
ImGui::SetMouseCursor(ImGuiMouseCursor_ResizeNS); // 更改鼠标光标
}
if (ImGui::IsItemActive())
{
right_pane_height -= ImGui::GetIO().MouseDelta.y;
if (right_pane_height < min_pane_height)
right_pane_height = min_pane_height;
if (right_pane_height > max_pane_height)
right_pane_height = max_pane_height;
}
// 设置输入框高度
ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(4.0f, right_pane_height / 2.0f - ImGui::GetFontSize() / 2.0f));
// 添加一个输入框
static char input_text[1024] = "";
ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x); // 设置输入框宽度
ImGui::InputText("##input", input_text, IM_ARRAYSIZE(input_text), ImGuiInputTextFlags_EnterReturnsTrue);
ImGui::PopStyleVar(); // 恢复默认样式
ImGui::EndGroup(); // 结束组
ImGui::End();
}
// Rendering
ImGui::Render();
ImDrawData *main_draw_data = ImGui::GetDrawData();
const bool main_is_minimized = (main_draw_data->DisplaySize.x <= 0.0f || main_draw_data->DisplaySize.y <= 0.0f);
if (!main_is_minimized)
FrameRender(wd, main_draw_data);
// Update and Render additional Platform Windows
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
ImGui::UpdatePlatformWindows();
ImGui::RenderPlatformWindowsDefault();
}
// Present Main Platform Window
if (!main_is_minimized)
FramePresent(wd);
}
// Cleanup
err = vkDeviceWaitIdle(g_Device);
check_vk_result(err);
ImGui_ImplVulkan_Shutdown();
ImGui_ImplGlfw_Shutdown();
ImGui::DestroyContext();
CleanupVulkanWindow();
CleanupVulkan();
glfwDestroyWindow(window);
glfwTerminate();
return 0;
}

5
readme.md Normal file
View File

@ -0,0 +1,5 @@
'''
mkdir build && cd build
cmake ..
make
'''