ImguiVirtualGeometryVisualizer.cpp

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/**
* @file ImguiVirtualGeometryVisualizer.cpp.
* @brief The ImguiVirtualGeometryVisualizer Class Implementation.
* @author Spices.
*/
 
#include "Pchheader.h"
#include "ImguiVirtualGeometryVisualizer.h"
 
#include "Render/Vulkan/VulkanRenderBackend.h"
 
namespace Spices {
 
    ImguiVirtualGeometryVisualizer::ImguiVirtualGeometryVisualizer(
        const std::string& panelName,
        FrameInfo& frameInfo
    )
        : ImguiSlate(panelName, frameInfo)
    {
        SPICES_PROFILE_ZONE;
 
        QueryID();
    }
 
    void ImguiVirtualGeometryVisualizer::OnRender()
    {
        SPICES_PROFILE_ZONE;
 
        if (!m_IsSlateOn) return;
 
        /**
        * @brief Begin render VirtualGeometry Visualizer.
        */
        Begin(m_PanelName.c_str());
 
        ImVec2 size = { m_Width , m_Height };
 
        /**
        * @brief Render TriangleID.
        */
        {
            SPICES_PROFILE_ZONEN("Render TriangleID");
 
            ImGui::Text("TriangleID");
            ImGui::Image(m_BufferID.TriangleID, size);
            ImGui::Separator();
        }
 
        /**
        * @brief Render MeshletID.
        */
        {
            SPICES_PROFILE_ZONEN("Render MeshletID");
 
            ImGui::Text("MeshletID");
            ImGui::Image(m_BufferID.MeshletID, size);
            ImGui::Separator();
        }
 
        /**
        * @brief End render GBuffer Visualizer.
        */
        End();
 
    }
 
    void ImguiVirtualGeometryVisualizer::OnEvent(Event& event)
    {
        SPICES_PROFILE_ZONE;
 
        /**
        * @brief Instance a EventDispatcher.
        */
        EventDispatcher dispatcher(event);
 
        /**
        * @brief Dispatch SlateResizeEvent to ImguiGBufferVisualizer::OnSlateResized.
        */
        dispatcher.Dispatch<SlateResizeEvent>(BIND_EVENT_FN(ImguiVirtualGeometryVisualizer::OnSlateResized));
    }
 
    bool ImguiVirtualGeometryVisualizer::OnSlateResized(SlateResizeEvent& event)
    {
        SPICES_PROFILE_ZONE;
 
        /**
        * @brief Free old DescriptorSet.
        */
        m_BufferID.Free();
 
        m_Width = 500;
        m_Height = m_Width * event.GetHeight() / static_cast<float>(event.GetWidth());
 
        /**
        * @rief Re Query ID.
        */
        QueryID();
 
        /**
        * @brief Do not block the event.
        */
        return false;
    }
 
    void ImguiVirtualGeometryVisualizer::QueryID()
    {
        SPICES_PROFILE_ZONE;
 
        VkDescriptorImageInfo* triangleID       = VulkanRenderBackend::GetRendererResourcePool()->AccessResource({ "TriangleID" });
        VkDescriptorImageInfo* meshletID        = VulkanRenderBackend::GetRendererResourcePool()->AccessResource({ "MeshletID" });
 
        m_BufferID.TriangleID       = reinterpret_cast<ImTextureID>(ImGui_ImplVulkan_AddTexture(triangleID->sampler, triangleID->imageView, triangleID->imageLayout));
        m_BufferID.MeshletID        = reinterpret_cast<ImTextureID>(ImGui_ImplVulkan_AddTexture(meshletID->sampler, meshletID->imageView, meshletID->imageLayout));
    }
}