source: project/nondescript/gl-font/gl_font.h @ 35339

#ifndef GL_FONT_H
#define GL_FONT_H

#include <GL/gl.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H


/* opengl memory-kept texture font */
typedef struct font_s
{
  int list_base;
  GLuint texture_id;
} font_t;

/* glyph_info_t holds information
 * about glyph's position in the glyphs buffer.
 * Stolen from fltk.
 */
typedef struct glyph_info_s
{
  int x, y, w, h;   /* location of the pixmap in memory */
  int left, bottom; /* corner of the pixmap relative to glyph origin */
  float advance;    /* x advance value */
} glyph_info_t;

/* on-the-fly texture generation for unicode support;
 * no caching (I guess it should have some caching). */
typedef struct font_unicode_s
{
  FT_Face         face;
  unsigned char   * image;
  int             width;
  int             height;
  glyph_info_t    glyph_info;
  GLuint          texture_id;
} font_unicode_t;

void gl_print_ascii( char * text );
void gl_print_ansi( char * text );
void gl_print( font_unicode_t * font, char * text );
void create_font_from_path_ascii( char * font_path );
font_unicode_t * create_font_from_path( char * font_path );
void create_font( void );

#endif /* GL_FONT_H */