SdfAtlas.hpp

Go to the documentation of this file.

 
#pragma once
 
#include "SdfFont.hpp"
 
#include <SDL3/SDL.h>
 
#include <glm/glm.hpp>

class SdfAtlas
{
public:
    static constexpr int k_atlasW = 1024;
    static constexpr int k_atlasH = 1024;
    static constexpr int k_renderPx = 72; 
    static constexpr int k_spread = 12;   

    bool init(SDL_GPUDevice* dev, const char* ttfPath);

    void quit();

    [[nodiscard]] const GlyphInfo* glyph(uint32_t codepoint) const;

    void bindFragment(SDL_GPURenderPass* pass, uint32_t slot) const;

    [[nodiscard]] float scale() const { return scale_; }

    [[nodiscard]] bool ready() const { return texture_ != nullptr; }

    [[nodiscard]] SDL_GPUTexture* gpuTexture() const { return texture_; }

    [[nodiscard]] SDL_GPUSampler* gpuSampler() const { return sampler_; }
 
private:
    SDL_GPUDevice* device_ = nullptr;
    SDL_GPUTexture* texture_ = nullptr;
    SDL_GPUSampler* sampler_ = nullptr;
    GlyphMap glyphs_;
    float scale_ = 1.f;
};