games/learn-vulkan
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

ImGUI is now gone.

Browse source
This commit is contained in:
Zed A. Shaw 2026-02-12 23:24:24 -05:00
parent 196b3098e8
commit c821ab52a1
4 changed files with 1 additions and 112 deletions
Download patch file Download diff file Expand all files Collapse all files

103
vk_gui.cpp
View file

@ -2,9 +2,6 @@
#include "vk_initializers.h"
#include <SDL.h>
#include <SDL_vulkan.h>
#include <imgui.h>
#include <imgui_impl_sdl2.h>
#include <imgui_impl_vulkan.h>
#include "vk_engine.h"
struct SDL_Window* VkGUI::init_window(VkExtent2D windowExtent)
@ -22,104 +19,6 @@ struct SDL_Window* VkGUI::init_window(VkExtent2D windowExtent)
window_flags);
}
void VkGUI::init_imgui(VulkanEngine& engine)
{
// 1. create descriptor pool for IMGUI
// the size of the pool is very oversize, but it's copied from imgui demo
// itself.
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{
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO,
.flags = VK_DESCRIPTOR_POOL_CREATE_FREE_DESCRIPTOR_SET_BIT,
.maxSets = 1000,
.poolSizeCount = (uint32_t)std::size(pool_sizes),
.pPoolSizes = pool_sizes,
};
VkDescriptorPool imguiPool;
VK_CHECK(vkCreateDescriptorPool(engine._device, &pool_info, nullptr, &imguiPool));
// 2: initialize the imgui library
ImGui::CreateContext();
ImGui_ImplSDL2_InitForVulkan(engine._window);
ImGui_ImplVulkan_InitInfo init_info{
.Instance = engine._instance,
.PhysicalDevice = engine._chosenGPU,
.Device = engine._device,
.Queue = engine._graphicsQueue,
.DescriptorPool = imguiPool,
.MinImageCount = 3,
.ImageCount = 3,
.MSAASamples = VK_SAMPLE_COUNT_1_BIT,
.UseDynamicRendering = true,
.PipelineRenderingCreateInfo = {
.sType = VK_STRUCTURE_TYPE_PIPELINE_RENDERING_CREATE_INFO,
.colorAttachmentCount = 1,
.pColorAttachmentFormats = &engine._swapchainImageFormat,
},
};
ImGui_ImplVulkan_Init(&init_info);
ImGui_ImplVulkan_CreateFontsTexture();
engine._mainDeletionQueue.push_function([=,this]() {
ImGui_ImplVulkan_Shutdown();
vkDestroyDescriptorPool(engine._device, imguiPool, nullptr);
});
}
void VkGUI::draw_imgui(VkExtent2D& swapchainExtent, VkCommandBuffer cmd, VkImageView targetImageView)
{
VkRenderingAttachmentInfo colorAttachment = vkinit::attachment_info(targetImageView, nullptr, VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL);
VkRenderingInfo renderInfo = vkinit::rendering_info(swapchainExtent, &colorAttachment, nullptr);
vkCmdBeginRendering(cmd, &renderInfo);
ImGui_ImplVulkan_RenderDrawData(ImGui::GetDrawData(), cmd);
vkCmdEndRendering(cmd);
}
void VkGUI::render_imgui(std::vector<ComputeEffect>& backgroundEffects, int* currentBackgroundEffect)
{
ImGui_ImplVulkan_NewFrame();
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();
if (ImGui::Begin("background")) {
ComputeEffect& selected = backgroundEffects[*currentBackgroundEffect];
ImGui::Text("Selected effect: %s", selected.name);
ImGui::SliderInt("Effect Index", currentBackgroundEffect,0, backgroundEffects.size() - 1);
ImGui::InputFloat4("data1",(float*)& selected.data.data1);
ImGui::InputFloat4("data2",(float*)& selected.data.data2);
ImGui::InputFloat4("data3",(float*)& selected.data.data3);
ImGui::InputFloat4("data4",(float*)& selected.data.data4);
}
ImGui::End();
ImGui::Render();
}
void VkGUI::destroy(struct SDL_Window* _window)
{
@ -145,7 +44,5 @@ void VkGUI::poll_event() {
stop_rendering = false;
}
}
ImGui_ImplSDL2_ProcessEvent(&event);
}
}