foray_texturemanager.hpp

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#pragma once
#include "../../core/foray_managedimage.hpp"
#include "../../core/foray_samplercollection.hpp"
#include "../foray_component.hpp"
#include <unordered_map>
 
namespace foray::scene::gcomp {
    class TextureManager : public GlobalComponent
    {
      public:
        void Destroy();
 
        virtual ~TextureManager() { Destroy(); }
 
        struct Texture
        {
          public:
            inline Texture() : mImage(), mSampler() { mSampler.SetManagedImage(&mImage); }
            virtual ~Texture() = default;
 
            FORAY_GETTER_CR(Image)
            FORAY_GETTER_MR(Image)
 
            inline VkDescriptorImageInfo GetDescriptorImageInfo(VkImageLayout layout = VkImageLayout::VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL) const
            {
                return mSampler.GetVkDescriptorInfo();
            }
 
            FORAY_PROPERTY_R(Sampler)
 
          protected:
            core::ManagedImage         mImage;
            core::CombinedImageSampler mSampler;
        };
 
        FORAY_GETTER_CR(Textures)
        FORAY_GETTER_MR(Textures)
 
        std::vector<VkDescriptorImageInfo> GetDescriptorInfos(VkImageLayout layout = VkImageLayout::VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL);
 
        inline Texture& PrepareTexture(int32_t texId)
        {
            Assert(!mTextures.contains(texId));
            return mTextures[texId];
        }
 
      protected:
        std::unordered_map<int32_t, Texture> mTextures;
    };
}  // namespace foray::scene