void Font::load_ttf_font_rage_file(VALUE r_file, char *filename, int size, int flags)
{
RAGE_CHECK_DISPOSED(disposed);
if (font != nullptr)
al_destroy_font(font);
Filesystem::BaseFile *fl;
Data_Get_Struct(r_file, Filesystem::BaseFile, fl);
if (fl->disposed)
{
rb_raise(rb_eException, RAGE_ERROR_FS_DISPOSED_RAGE_FILE_READ);
return;
}
if (fl->file == nullptr)
{
rb_raise(rb_eException, RAGE_ERROR_FS_RAGE_FILE_NOT_LOADED);
return;
}
rage_file = r_file;
font = al_load_ttf_font_f(fl->file, filename, size, flags);
if (font == nullptr)
{
rb_raise(rb_eException, RAGE_ERROR_FONT_LOAD_FAIL, RAGE_BASE_FILE);
return;
}
}
ALLEGRO_FONT * load_packed_font(unsigned char *mem, int mem_size, int font_size)
{
ALLEGRO_FILE *mem_file = al_open_memfile(mem, mem_size, "r");
/* "The filename (second arg) is only used to find possible additional files next to a font file."
? But works with just a blank string */
ALLEGRO_FONT *font = al_load_ttf_font_f(mem_file, "", font_size, 0); /* last variable flags */
/* https://www.allegro.cc/manual/5/al_load_ttf_font_f
"The file handle is owned by the returned ALLEGRO_FONT object and must not be freed by the caller,
as FreeType expects to be able to read from it at a later time." */
return font;
}
/**
TTF font constructor from file.
@param file file.
@param size size in points.
@param flags font flags.
*/
Font(const File &file, int size, int flags = 0) :
Shared(al_load_ttf_font_f(file.get(), nullptr, size, flags), al_destroy_font)
{
}
/**
TTF font constructor from file.
@param file file.
@param filename used for additional files.
@param size size in points.
@param flags font flags.
*/
Font(const File &file, const char *filename, int size, int flags = 0) :
Shared(al_load_ttf_font_f(file.get(), filename, size, flags), al_destroy_font)
{
}
/**
loads a true-type font from a file.
@param file file to load the font from.
@param filename used for additional files.
@param size size in points.
@param flags font flags.
@return true on success.
*/
bool load(const File &file, const char *filename, int size, int flags = 0) {
reset(al_load_ttf_font_f(file.get(), filename, size, flags), al_destroy_font);
return (bool)(*this);
}
