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https://github.com/JannisHeydemann/BoredOS.git
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61 lines
1.8 KiB
C
61 lines
1.8 KiB
C
#ifndef FONT_MANAGER_H
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#define FONT_MANAGER_H
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#include <stdint.h>
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#include <stdbool.h>
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#include <stddef.h>
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// stb_truetype math stubs
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extern float ksqrtf(float x);
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extern float kpowf(float b, float e);
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extern float kfmodf(float x, float y);
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extern float kcosf(float x);
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extern float kacosf(float x);
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extern float kfabsf(float x);
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#define STBTT_ifloor(x) ((int)(x))
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#define STBTT_iceil(x) ((int)(x + 0.999999f))
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#define STBTT_sqrt(x) ksqrtf(x)
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#define STBTT_pow(x,y) kpowf(x,y)
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#define STBTT_fmod(x,y) kfmodf(x,y)
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#define STBTT_cos(x) kcosf(x)
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#define STBTT_acos(x) kacosf(x)
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#define STBTT_fabs(x) kfabsf(x)
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#define STBTT_assert(x) ((void)0)
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// Memory management
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#define STBTT_malloc(x,u) kmalloc(x)
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#define STBTT_free(x,u) kfree(x)
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// String functions
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#define STBTT_memcpy mem_memcpy
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#define STBTT_memset mem_memset
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// Data types
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typedef uint64_t STBTT_ptrsize;
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typedef struct {
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void *data;
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size_t size;
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void *info; // stbtt_fontinfo
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float scale;
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float pixel_height;
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int ascent;
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int descent;
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int line_gap;
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} ttf_font_t;
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bool font_manager_init(void);
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ttf_font_t* font_manager_load(const char *path, float size);
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void font_manager_render_char(ttf_font_t *font, int x, int y, char c, uint32_t color, void (*put_pixel_fn)(int, int, uint32_t));
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void font_manager_render_char_scaled(ttf_font_t *font, int x, int y, char c, uint32_t color, float scale, void (*put_pixel_fn)(int, int, uint32_t));
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int font_manager_get_string_width(ttf_font_t *font, const char *s);
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int font_manager_get_string_width_scaled(ttf_font_t *font, const char *s, float scale);
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int font_manager_get_font_height_scaled(ttf_font_t *font, float scale);
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int font_manager_get_font_ascent_scaled(ttf_font_t *font, float scale);
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int font_manager_get_font_line_height_scaled(ttf_font_t *font, float scale);
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#endif
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