Texture.h

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#pragma once

#include "Resource.h"
#include "stb_image.h"

namespace Fling
{
    class Texture : public Resource
    {
    public:

        static std::shared_ptr<Fling::Texture> Create(Guid t_ID);

        explicit Texture(Guid t_ID);
        virtual ~Texture();

        FORCEINLINE UINT32 GetWidth() const { return m_Width; }
        FORCEINLINE UINT32 GetHeight() const { return m_Height; }
        FORCEINLINE INT32 GetChannels() const { return m_Channels; }
        FORCEINLINE UINT32 GetMipLevels() const { return m_MipLevels; }

        FORCEINLINE const VkImage& GetVkImage() const { return m_vVkImage; }
        FORCEINLINE const VkImageView& GetVkImageView() const { return m_ImageView; }
        FORCEINLINE const VkSampler& GetSampler() const { return m_TextureSampler; }
        FORCEINLINE VkDescriptorImageInfo* GetDescriptorInfo() { return &m_ImageInfo; }
        FORCEINLINE const VkFormat& GetVkImageFormat() const { return m_Format; }
        UINT64 GetImageSize() const { return m_Width * m_Height * 4; } 

        stbi_uc* GetPixelData() const { return m_PixelData; }

        void Release();

    private:

        void LoadVulkanImage();

        void CreateImageView();

        void CreateTextureSampler();

        void CopyBufferToImage(VkBuffer t_Buffer);

        void GenerateMipMaps(VkFormat imageFormat);

        UINT32 m_Width = 0;

        UINT32 m_Height = 0;

        UINT32 m_MipLevels = 0;

        INT32 m_Channels = 0;

        VkImage m_vVkImage;

        VkImageView m_ImageView;

        VkSampler m_TextureSampler;

        VkDeviceMemory m_VkMemory;

        VkDescriptorImageInfo m_ImageInfo{};
        
        stbi_uc* m_PixelData;

        VkFormat m_Format = VK_FORMAT_R8G8B8A8_UNORM;
    };
}   // namespace Fling