src/common/Font.hpp


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#pragma once

#include <filesystem>
#include <stb_truetype.h>


struct MonoBitmap {
    int32_t w;
    int32_t h;
    std::unique_ptr<uint8_t> pixels;
};


struct Glyph {
    int32_t xoff;
    int32_t yoff;
    int32_t xadvance;
    MonoBitmap bitmap;
};


class Font {
public:
    ~Font();

    bool Init(const char* path, int font_size);
    void Deinit();

    void LoadGlyph(Glyph& glyph, uint32_t codepoint);


private:
    const char* m_file_content = nullptr;

    float m_font_scale;
    int m_font_baseline;
    int m_font_yadvance;

    stbtt_fontinfo m_font_info;
    Glyph m_glyphs['~' - ' ' + 1];
};