RetroArch/gfx/font_renderer_driver.c
2015-07-14 12:00:28 -03:00

81 lines
2.3 KiB
C

/* RetroArch - A frontend for libretro.
* Copyright (C) 2010-2014 - Hans-Kristian Arntzen
* Copyright (C) 2011-2015 - Daniel De Matteis
*
* RetroArch is free software: you can redistribute it and/or modify it under the terms
* of the GNU General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* RetroArch is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with RetroArch.
* If not, see <http://www.gnu.org/licenses/>.
*/
#include "font_renderer_driver.h"
#include "../general.h"
#ifdef HAVE_CONFIG_H
#include "../config.h"
#endif
static const font_renderer_driver_t *font_backends[] = {
#ifdef HAVE_FREETYPE
&freetype_font_renderer,
#endif
#if defined(__APPLE__) && defined(HAVE_CORETEXT)
&coretext_font_renderer,
#endif
#ifdef HAVE_STB_FONT
&stb_font_renderer,
#endif
&bitmap_font_renderer,
NULL
};
int font_renderer_get_message_width(const char *msg, float scale)
{
driver_t *driver = driver_get_ptr();
const struct font_renderer *font_driver = driver ? driver->font_osd_driver : NULL;
if (!font_driver || !font_driver->get_message_width)
return 0;
return font_driver->get_message_width(driver->font_osd_data, msg, strlen(msg), scale);
}
bool font_renderer_create_default(
const font_renderer_driver_t **drv, void **handle,
const char *font_path, unsigned font_size)
{
unsigned i;
for (i = 0; font_backends[i]; i++)
{
const char *path = font_path;
if (!path)
path = font_backends[i]->get_default_font();
if (!path)
continue;
*handle = font_backends[i]->init(path, font_size);
if (*handle)
{
RARCH_LOG("Using font rendering backend: %s.\n",
font_backends[i]->ident);
*drv = font_backends[i];
return true;
}
else
RARCH_ERR("Failed to create rendering backend: %s.\n",
font_backends[i]->ident);
}
*drv = NULL;
*handle = NULL;
return false;
}