ImGuiSubpass.h

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#pragma once

#include "Subpass.h"

namespace Fling
{
    class CommandBuffer;
    class LogicalDevice;
    class Swapchain;
    class BaseEditor;
    class FlingWindow;

    class ImGuiSubpass : public Subpass
    {
    public:
        ImGuiSubpass(
            const LogicalDevice* t_Dev,
            const Swapchain* t_Swap,
            entt::registry& t_reg,
            FlingWindow* t_Window,
            VkRenderPass t_GlobalRenderPass,
            std::shared_ptr<Fling::BaseEditor> t_Editor,
            std::shared_ptr<Fling::Shader> t_Vert,
            std::shared_ptr<Fling::Shader> t_Frag
        );

        virtual ~ImGuiSubpass();

        void Draw(CommandBuffer& t_CmdBuf, VkFramebuffer t_PresentFrameBuf, UINT32 t_ActiveFrameInFlight, entt::registry& t_reg, float DeltaTime) override;

        void CreateDescriptorSets(VkDescriptorPool t_Pool, entt::registry& t_reg) override;

        void PrepareAttachments() override;

        void CreateGraphicsPipeline() override;

        void CleanUp(entt::registry& t_reg) override;

    private:

        void PrepImGuiStyleSettings();

        void PrepareResources();

        void BuildCommandBuffer(VkCommandBuffer t_commandBuffer);

        void UpdateUniforms();

        struct PushConstBlock
        {
            glm::vec2 scale;
            glm::vec2 translate;
        } pushConstBlock;

        std::unique_ptr<class Buffer> m_vertexBuffer;
        std::unique_ptr<class Buffer> m_indexBuffer;

        VkDescriptorPool m_descriptorPool = VK_NULL_HANDLE;
        VkDescriptorSetLayout m_descriptorSetLayout = VK_NULL_HANDLE;
        VkPipelineCache m_pipelineCache  = VK_NULL_HANDLE;
        VkPipelineLayout m_pipelineLayout  = VK_NULL_HANDLE;
        VkPipeline m_pipeLine = VK_NULL_HANDLE;

        VkDescriptorSet m_descriptorSet;

        FlingWindow* m_Window = nullptr;

        VkDeviceMemory m_fontMemory = VK_NULL_HANDLE;
        VkImage m_fontImage = VK_NULL_HANDLE;
        VkImageView m_fontImageView = VK_NULL_HANDLE;
        VkSampler m_sampler = VK_NULL_HANDLE;

        std::shared_ptr<Fling::BaseEditor> m_Editor;

        INT32 m_vertexCount = 0;
        INT32 m_indexCount = 0;

        VkRenderPass m_GlobalRenderPass = VK_NULL_HANDLE;
    };
}   // namespace Fling