CALLBACK(draw_hello,evt,param) {
int ascent, descent;
FONT fnt;
fnt = get_appfont();
get_font_info(fnt, &ascent, &descent, NULL);
plot_str(evt->graphic, 5, 5+ascent+descent, "Hello World",fnt);
return 0;
}
/**
* \brief Process memory font.
* \param priv private data
* \param library library object
* \param ftlibrary freetype library object
* \param idx index of the processed font in library->fontdata
*
* Builds a FontInfo with FreeType and some table reading.
*/
static void process_fontdata(ASS_FontProvider *priv, ASS_Library *library,
FT_Library ftlibrary, int idx)
{
int rc;
const char *name = library->fontdata[idx].name;
const char *data = library->fontdata[idx].data;
int data_size = library->fontdata[idx].size;
FT_Face face;
int face_index, num_faces = 1;
for (face_index = 0; face_index < num_faces; ++face_index) {
ASS_FontProviderMetaData info;
FontDataFT *ft;
rc = FT_New_Memory_Face(ftlibrary, (unsigned char *) data,
data_size, face_index, &face);
if (rc) {
ass_msg(library, MSGL_WARN, "Error opening memory font '%s'",
name);
continue;
}
num_faces = face->num_faces;
charmap_magic(library, face);
memset(&info, 0, sizeof(ASS_FontProviderMetaData));
if (get_font_info(ftlibrary, face, &info)) {
ass_msg(library, MSGL_WARN,
"Error getting metadata for embedded font '%s'", name);
FT_Done_Face(face);
continue;
}
ft = calloc(1, sizeof(FontDataFT));
if (ft == NULL) {
free_font_info(&info);
FT_Done_Face(face);
continue;
}
ft->lib = library;
ft->face = face;
ft->idx = idx;
if (ass_font_provider_add_font(priv, &info, NULL, face_index, ft)) {
ass_msg(library, MSGL_WARN, "Failed to add embedded font '%s'",
name);
}
free_font_info(&info);
}
}
