kc3-lang/kc3/libc3/window/sdl2/sdl2_font.c

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• Hash : 1b03fd70
  Author : Thomas de Grivel
  Date : 2023-12-11T19:54:18
  

  assert.h err.h

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• libc3/window/sdl2/sdl2_font.c

• /* c3
   * Copyright 2022,2023 kmx.io <contact@kmx.io>
   *
   * Permission is hereby granted to use this software granted the above
   * copyright notice and this permission paragraph are included in all
   * copies and substantial portions of this software.
   *
   * THIS SOFTWARE IS PROVIDED "AS-IS" WITHOUT ANY GUARANTEE OF
   * PURPOSE AND PERFORMANCE. IN NO EVENT WHATSOEVER SHALL THE
   * AUTHOR BE CONSIDERED LIABLE FOR THE USE AND PERFORMANCE OF
   * THIS SOFTWARE.
   */
  #include <libc3/c3.h>
  #include "sdl2_font.h"
  
  void sdl2_font_clean (s_sdl2_font *font)
  {
    assert(font);
    ftglDestroyFont(font->ftgl_font);
    str_clean(&font->path);
    str_clean(&font->real_path);
  }
  
  s_sdl2_font * sdl2_font_init (s_sdl2_font *font, const s8 *path)
  {
    assert(font);
    assert(path);
    str_init_copy_1(&font->path, path);
    if (! file_search(&font->path, sym_1("r"), &font->real_path)) {
      err_write_1("sdl2_font_init: file not found: ");
      err_puts(path);
      str_clean(&font->path);
      return NULL;
    }
    font->ftgl_font = ftglCreateTextureFont(font->real_path.ptr.ps8);
    if (! font->ftgl_font) {
      err_write_1("sdl2_font_init: error loading font: ");
      err_puts(font->real_path.ptr.ps8);
      str_clean(&font->path);
      str_clean(&font->real_path);
      return NULL;
    }
    font->size = 0;
    font->dpi = 72;
    return font;
  }
  
  void sdl2_font_set_size (s_sdl2_font *font, u32 size, u32 dpi)
  {
    assert(font);
    assert(size);
    ftglSetFontFaceSize(font->ftgl_font, size, dpi);
    font->size = size;
    font->dpi = dpi;
  }
  
  void sdl2_font_render_text (const s_sdl2_font *font, const s8 *p)
  {
    ftglRenderFont(font->ftgl_font, p, FTGL_RENDER_ALL);
  }
  

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