texture.hpp

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#pragma once
#include "le2d/resource/resource.hpp"
#include "le2d/tile/tile_set.hpp"
#include <kvf/bitmap.hpp>
#include <kvf/render_device_fwd.hpp>
#include <kvf/vma.hpp>
#include <gsl/pointers>
 
namespace kvf {
class RenderPass;
} // namespace kvf
 
namespace le {
class ITextureBase : public IResource {
  public:
    [[nodiscard]] virtual auto get_image() const -> vk::ImageView = 0;
    [[nodiscard]] virtual auto get_size() const -> glm::ivec2 = 0;
 
    [[nodiscard]] virtual auto descriptor_info() const -> vk::DescriptorImageInfo = 0;
};
 
struct TextureSampler {
    vk::SamplerAddressMode wrap{vk::SamplerAddressMode::eClampToEdge};
    vk::Filter filter{vk::Filter::eLinear};
    vk::BorderColor border{vk::BorderColor::eIntOpaqueBlack};
};
 
class ITexture : public ITextureBase {
  public:
    virtual void overwrite(kvf::Bitmap const& bitmap) = 0;
    virtual auto load_and_write(std::span<std::byte const> compressed_image) -> bool = 0;
};
 
class ITileSheet : public ITexture {
  public:
    [[nodiscard]] auto get_uv(TileId const id) const -> kvf::UvRect { return tile_set.get_uv(id); }
 
    TileSet tile_set{};
};
 
class RenderTexture : public ITextureBase {
  public:
    explicit RenderTexture(gsl::not_null<kvf::RenderPass const*> render_pass);
 
    [[nodiscard]] auto is_ready() const -> bool final;
 
    [[nodiscard]] auto get_image() const -> vk::ImageView final;
    [[nodiscard]] auto get_size() const -> glm::ivec2 final;
 
    [[nodiscard]] auto descriptor_info() const -> vk::DescriptorImageInfo final;
 
  private:
    gsl::not_null<kvf::RenderPass const*> m_render_pass;
};
} // namespace le