// -----------------------------------------------------------------------------
// Calculate the pointer to the requested character inside the Flash ROM
//
PGM_P font_get_char_position(FONT_P font, char character)
{
uint16_t ret = 0;
int16_t charnum_ret = font_get_char_number(font, character);
uint8_t charnum = charnum_ret;
PGM_P base = font_widthtable(font);
if (charnum_ret < 0) { // char not found
return 0;
}
if (base == 0) { // fixed width
return font_data(font) + (uint16_t)charnum / (uint8_t)(font_get_height_bytes(font) / font_get_char_width(font,character));
}
if (charnum) { // proportional width
while (charnum--) {
ret += pgm_read_byte(base++);
}
}
return (font_data(font)) + ret * font_get_height_bytes(font);
}
int main ()
{
printf ("Results of open_benchmark:\n");
try
{
FT_Library library;
if (FT_Init_FreeType (&library))
throw xtl::format_operation_exception ("::FT_Init_FreeType", "Can't init freetype library\n");
{
common::InputFile font_file (FILE_NAME);
xtl::uninitialized_storage<char> font_data (font_file.Size ());
font_file.Read (font_data.data (), font_data.size ());
size_t start_time = common::milliseconds ();
for (size_t i = 0; i < MEMORY_ITERATIONS_COUNT; i++)
{
FT_Face face;
if (FT_New_Memory_Face (library, (const FT_Byte*)font_data.data (), font_data.size (), 0, &face))
throw xtl::format_operation_exception ("FontFace::FontFace", "Can't create font face\n");
FT_Done_Face (face);
}
printf ("FreeType font creation speed from memory is %f/s\n", MEMORY_ITERATIONS_COUNT / ((common::milliseconds () - start_time) / 1000.f));
}
{
size_t start_time = common::milliseconds ();
for (size_t i = 0; i < FILE_ITERATIONS_COUNT; i++)
{
common::InputFile font_file (FILE_NAME);
xtl::uninitialized_storage<char> font_data (font_file.Size ());
font_file.Read (font_data.data (), font_data.size ());
FT_Face face;
if (FT_New_Memory_Face (library, (const FT_Byte*)font_data.data (), font_data.size (), 0, &face))
throw xtl::format_operation_exception ("FontFace::FontFace", "Can't create font face\n");
FT_Done_Face (face);
}
printf ("FreeType font creation speed from file is %f/s\n", FILE_ITERATIONS_COUNT / ((common::milliseconds () - start_time) / 1000.f));
}
FT_Done_FreeType (library);
}
catch (std::exception& exception)
{
printf ("exception: %s\n",exception.what ());
}
catch (...)
{
printf ("unknown exception\n");
}
return 0;
}
