KarmaGuiRenderer.h

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#pragma once
 
#include "krpch.h"
 
#include "imgui_impl_glfw.h"
#include "Platform/Vulkan/KarmaGuiVulkanHandler.h"
#include "Platform/OpenGL/KarmaGuiOpenGLHandler.h"
 
namespace Karma
{
    struct KARMA_API KarmaGuiBackendRendererUserData : public KarmaGui_ImplOpenGL3_Data, public KarmaGui_ImplVulkan_Data
    {
        KGTextureID GetTextureIDAtIndex(uint32_t index);
        uint32_t GetTextureWidthAtIndex(uint32_t index);
 
        uint32_t GetTextureHeightAtIndex(uint32_t index);
    };

    class KARMA_API KarmaGuiRenderer
    {
    public:
        static void SetUpKarmaGuiRenderer(GLFWwindow* window);
        static void OnKarmaGuiLayerDetach();
        static void OnKarmaGuiLayerBegin();
        static void OnKarmaGuiLayerEnd();

        static KarmaGuiBackendRendererUserData* GetBackendRendererUserData();
        static void AddImageTexture(char const* fileName, const std::string& label);


        static void KarmaGui_ImplVulkan_Init(KarmaGui_ImplVulkan_InitInfo* initInfo);
        static void CreateDescriptorPool();

        static void GracefulVulkanShutDown();

        static void CleanUpVulkanAndWindowData();
        static void GiveLoopBeginControlToVulkan();
        static void GiveLoopEndControlToVulkan();

        static void FrameRender(KarmaGui_ImplVulkanH_Window* windowData, KGDrawData* drawData);

        static void FramePresent(KarmaGui_ImplVulkanH_Window* windowData);

                
        static KGTextureID Add3DSceneFor2DRendering(std::shared_ptr<Scene> scene, KGVec2 dimensions);
 
    private:
 
        static GLFWwindow* m_GLFWwindow;
        static void* m_BackendRenderer;
 
        // Vulkan specific members
        static VkDescriptorPool m_KarmaGuiDescriptorPool;
        static KarmaGui_ImplVulkanH_Window m_VulkanWindowData;
 
        static bool m_SwapChainRebuild;
    };
}