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/**
* xrdp: A Remote Desktop Protocol server.
*
* Copyright (C) Jay Sorg 2004-2014
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* fonts
*/
/*
The fv1 files contain
Font File Header (just one)
FNT1 4 bytes
Font Name 32 bytes
Font Size 2 bytes
Font Style 2 bytes
Pad 8 bytes
Font Data (repeats)
Width 2 bytes
Height 2 bytes
Baseline 2 bytes
Offset 2 bytes
Incby 2 bytes
Pad 6 bytes
Glyph Data var, see FONT_DATASIZE macro
*/
#if defined(HAVE_CONFIG_H)
#include <config_ac.h>
#endif
#include "xrdp.h"
#include "log.h"
#if 0 /* not used */
static char w_char[] =
{
0x00, 0x00, 0x00,
0x00, 0x00, 0x00,
0x00, 0x00, 0x00,
0x08, 0x20, 0x80,
0x08, 0x50, 0x80,
0x04, 0x51, 0x00,
0x04, 0x51, 0x00,
0x04, 0x51, 0x00,
0x02, 0x8a, 0x00,
0x02, 0x8a, 0x00,
0x02, 0x8a, 0x00,
0x01, 0x04, 0x00,
0x01, 0x04, 0x00,
0x00, 0x00, 0x00,
0x00, 0x00, 0x00,
0x00, 0x00, 0x00,
};
#endif
/*****************************************************************************/
struct xrdp_font *
xrdp_font_create(struct xrdp_wm *wm)
{
struct xrdp_font *self;
struct stream *s;
int fd;
int b;
int i;
int index;
int datasize;
int file_size;
struct xrdp_font_char *f;
char file_path[256];
DEBUG(("in xrdp_font_create"));
g_snprintf(file_path, 255, "%s/%s", XRDP_SHARE_PATH, DEFAULT_FONT_NAME);
if (!g_file_exist(file_path))
{
log_message(LOG_LEVEL_ERROR,"xrdp_font_create: error font file [%s] does not exist",
file_path);
return 0;
}
file_size = g_file_get_size(file_path);
if (file_size < 1)
{
log_message(LOG_LEVEL_ERROR,"xrdp_font_create: error reading font from file [%s]",
file_path);
return 0;
}
self = (struct xrdp_font *)g_malloc(sizeof(struct xrdp_font), 1);
self->wm = wm;
make_stream(s);
init_stream(s, file_size + 1024);
fd = g_file_open(file_path);
if (fd != -1)
{
b = g_file_read(fd, s->data, file_size + 1024);
g_file_close(fd);
if (b > 0)
{
s->end = s->data + b;
in_uint8s(s, 4);
in_uint8a(s, self->name, 32);
in_uint16_le(s, self->size);
in_uint16_le(s, self->style);
in_uint8s(s, 8);
index = 32;
while (s_check_rem(s, 16))
{
f = self->font_items + index;
in_sint16_le(s, i);
f->width = i;
in_sint16_le(s, i);
f->height = i;
in_sint16_le(s, i);
f->baseline = i;
in_sint16_le(s, i);
f->offset = i;
in_sint16_le(s, i);
f->incby = i;
in_uint8s(s, 6);
datasize = FONT_DATASIZE(f);
if (datasize < 0 || datasize > 512)
{
/* shouldn't happen */
log_message(LOG_LEVEL_ERROR,"error in xrdp_font_create, datasize wrong");
log_message(LOG_LEVEL_DEBUG,"width %d height %d datasize %d index %d",
f->width, f->height, datasize, index);
break;
}
if (s_check_rem(s, datasize))
{
f->data = (char *)g_malloc(datasize, 0);
in_uint8a(s, f->data, datasize);
}
else
{
log_message(LOG_LEVEL_ERROR,"error in xrdp_font_create");
}
index++;
}
}
}
free_stream(s);
/*
self->font_items[0].offset = -4;
self->font_items[0].baseline = -16;
self->font_items[0].width = 24;
self->font_items[0].height = 16;
self->font_items[0].data = g_malloc(3 * 16, 0);
g_memcpy(self->font_items[0].data, w_char, 3 * 16);
*/
DEBUG(("out xrdp_font_create"));
return self;
}
/*****************************************************************************/
/* free the font and all the items */
void
xrdp_font_delete(struct xrdp_font *self)
{
int i;
if (self == 0)
{
return;
}
for (i = 0; i < NUM_FONTS; i++)
{
g_free(self->font_items[i].data);
}
g_free(self);
}
/*****************************************************************************/
/* compare the two font items returns 1 if they match */
int
xrdp_font_item_compare(struct xrdp_font_char *font1,
struct xrdp_font_char *font2)
{
int datasize;
if (font1 == 0)
{
return 0;
}
if (font2 == 0)
{
return 0;
}
if (font1->offset != font2->offset)
{
return 0;
}
if (font1->baseline != font2->baseline)
{
return 0;
}
if (font1->width != font2->width)
{
return 0;
}
if (font1->height != font2->height)
{
return 0;
}
datasize = FONT_DATASIZE(font1);
if (g_memcmp(font1->data, font2->data, datasize) == 0)
{
return 1;
}
return 0;
}
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