netsurf/atari/plot/fontplot.c

126 lines
3.1 KiB
C

/*
* Copyright 2010 Ole Loots <ole@monochrom.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf 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 Foundation; version 2 of the License.
*
* NetSurf 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "desktop/mouse.h"
#include "atari/plot/fontplot.h"
const struct s_font_driver_table_entry font_driver_table[] =
{
#ifdef WITH_VDI_FONT_DRIVER
{"vdi", ctor_font_plotter_vdi, 0},
#endif
#ifdef WITH_FREETYPE_FONT_DRIVER
{"freetype", ctor_font_plotter_freetype, 0},
#endif
#ifdef WITH_INTERNAL_FONT_DRIVER
{"internal", ctor_font_plotter_internal, 0},
#endif
{(char*)NULL, NULL, 0}
};
void dump_font_drivers(void)
{
int i = 0;
while( font_driver_table[i].name != NULL ) {
printf("%s -> flags: %d\n", font_driver_table[i].name,
font_driver_table[i].flags);
i++;
}
}
/**
* Create an new text plotter object
*
* Available: "vdi", "freetype", "internal"
* \param vdihandle the vdi handle to act upon,
* \param name selector ID (string) of the font plotter.
* flags flags configration flags of the plotter,
* available flags:
* FONTPLOT_FLAG_MONOGLYPH - Enable 1 bit font plotting
* \param error set to != 0 when errors occur
* \return the new font plotter instance on success, or NULL on failure.
*/
FONT_PLOTTER new_font_plotter(int vdihandle, char * name, unsigned long flags,
int * error)
{
int i=0;
int res = 0-ERR_PLOTTER_NOT_AVAILABLE;
FONT_PLOTTER fplotter = NULL;
/* set the default error code: */
*error = 0-ERR_PLOTTER_NOT_AVAILABLE;
/* Find the selector string in the font plotter table, */
/* and bail out when the font plotter is not available: */
for (i = 0; font_driver_table[i].name != NULL; i++) {
/* found selector in driver table? */
if (strcmp(name, font_driver_table[i].name) == 0) {
/* allocate the font plotter instance: */
fplotter = (FONT_PLOTTER)malloc(sizeof(struct s_font_plotter));
if (fplotter == NULL) {
*error = 0-ERR_NO_MEM;
return(NULL);
}
/* Initialize the font plotter with the requested settings: */
memset( fplotter, 0, sizeof(FONT_PLOTTER));
fplotter->vdi_handle = vdihandle;
fplotter->name = name;
fplotter->flags = 0;
fplotter->flags |= flags;
/* Execute the constructor: */
assert(font_driver_table[i].ctor);
res = font_driver_table[i].ctor(fplotter);
/* success? */
if (res < 0) {
/* NO success! */
free(fplotter);
*error = res;
return(NULL);
}
*error = 0;
break;
}
}
return(fplotter);
}
/*
Free an font plotter
*/
int delete_font_plotter(FONT_PLOTTER p)
{
if (p) {
p->dtor(p);
free(p);
p = NULL;
}
else
return(-1);
return(0);
}