vk_text_atlas_manager.h

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#pragma once
 
#include <gui_core/text/gui_text_atlas_manager.h>
 
namespace tachyon::vulkan
{
 
    class VulkanGraphicsContext;
    class VulkanImageSet;
 
    struct FontTexture
    {
        VkDescriptorImageInfo descriptorInfo {};
        tachyon::Image*     image { nullptr };
        tachyon::uint2      size { 0,0 };
        int32_t         bpp { 0 };
        tachyon::ImageIndex imageIndex { tachyon::ImageIndex::Invalid };
        bool            used = false;
    };
 
    class VulkanTextAtlasManager : public tachyon::TextAtlasManager
    {
    public:
        std::vector<FontTexture>       fontTextures;
        tachyon::vulkan::VulkanGraphicsContext* graphicsContext = nullptr;
        tachyon::vulkan::VulkanImageSet*        imageSet        = nullptr;
 
    public:
        bool Initialize(tachyon::GraphicsContext* graphicsContext, tachyon::ImageSet* imageSet) override;
 
        tachyon::TextureIndex CreateTexture(const uint8_t* imageData, tachyon::uint2 imageSize, uint8_t bpp) override;
        void UpdateTexture(tachyon::TextureIndex textureIndex, const uint8_t* imageData, tachyon::uint2 imageSize) override;
 
        tachyon::ImageIndex GetImageIndex(tachyon::TextureIndex textureIndex) override;
        void SyncTextureIndices() override;
    };

}