#include "loader_common.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
static FILE *rgb_txt = NULL;
static void
xpm_parse_color(char *color, int *r, int *g, int *b)
{
char buf[4096];
/* is a #ff00ff like color */
if (color[0] == '#')
{
int len;
char val[32];
len = strlen(color) - 1;
if (len < 96)
{
int i;
len /= 3;
for (i = 0; i < len; i++)
val[i] = color[1 + i + (0 * len)];
val[i] = 0;
sscanf(val, "%x", r);
for (i = 0; i < len; i++)
val[i] = color[1 + i + (1 * len)];
val[i] = 0;
sscanf(val, "%x", g);
for (i = 0; i < len; i++)
val[i] = color[1 + i + (2 * len)];
val[i] = 0;
sscanf(val, "%x", b);
if (len == 1)
{
*r = (*r << 4) | *r;
*g = (*g << 4) | *g;
*b = (*b << 4) | *b;
}
else if (len > 2)
{
*r >>= (len - 2) * 4;
*g >>= (len - 2) * 4;
*b >>= (len - 2) * 4;
}
}
return;
}
/* look in rgb txt database */
if (!rgb_txt)
#ifndef __EMX__
rgb_txt = fopen("/usr/share/X11/rgb.txt", "r");
if (!rgb_txt)
rgb_txt = fopen("/usr/X11R6/lib/X11/rgb.txt", "r");
if (!rgb_txt)
rgb_txt = fopen("/usr/openwin/lib/X11/rgb.txt", "r");
#else
rgb_txt = fopen(__XOS2RedirRoot("/XFree86/lib/X11/rgb.txt"), "rt");
#endif
if (!rgb_txt)
return;
fseek(rgb_txt, 0, SEEK_SET);
while (fgets(buf, 4000, rgb_txt))
{
if (buf[0] != '!')
{
int rr, gg, bb;
char name[4096];
sscanf(buf, "%i %i %i %[^\n]", &rr, &gg, &bb, name);
if (!strcasecmp(name, color))
{
*r = rr;
*g = gg;
*b = bb;
return;
}
}
}
}
static void
xpm_parse_done(void)
{
if (rgb_txt)
fclose(rgb_txt);
rgb_txt = NULL;
}
char
load(ImlibImage * im, ImlibProgressFunction progress, char progress_granularity,
char immediate_load)
{
DATA32 *ptr, *end;
FILE *f;
int pc, c, i, j, k, w, h, ncolors, cpp, comment, transp,
quote, context, len, done, r, g, b, backslash;
char *line, s[256], tok[256], col[256];
int lsz = 256;
struct _cmap {
unsigned char str[6];
unsigned char transp;
short r, g, b;
} *cmap;
short lookup[128 - 32][128 - 32];
float per = 0.0, per_inc = 0.0;
int last_per = 0, last_y = 0;
int count, pixels;
done = 0;
transp = -1;
/* if immediate_load is 1, then dont delay image laoding as below, or */
/* already data in this image - dont load it again */
if (im->data)
{
xpm_parse_done();
return 0;
}
f = fopen(im->real_file, "rb");
if (!f)
{
xpm_parse_done();
return 0;
}
fread(s, 1, 9, f);
rewind(f);
s[9] = 0;
if (strcmp("/* XPM */", s))
{
fclose(f);
xpm_parse_done();
return 0;
}
i = 0;
j = 0;
cmap = NULL;
w = 10;
h = 10;
ptr = NULL;
end = NULL;
c = ' ';
comment = 0;
quote = 0;
context = 0;
pixels = 0;
count = 0;
line = malloc(lsz);
if (!line)
return 0;
backslash = 0;
memset(lookup, 0, sizeof(lookup));
while (!done)
{
pc = c;
c = fgetc(f);
if (c == EOF)
break;
if (!quote)
{
if ((pc == '/') && (c == '*'))
comment = 1;
else if ((pc == '*') && (c == '/') && (comment))
comment = 0;
}
if (!comment)
{
if ((!quote) && (c == '"'))
{
quote = 1;
i = 0;
}
else if ((quote) && (c == '"'))
{
line[i] = 0;
quote = 0;
if (context == 0)
{
/* Header */
sscanf(line, "%i %i %i %i", &w, &h, &ncolors, &cpp);
if ((ncolors > 32766) || (ncolors < 1))
{
fprintf(stderr,
"IMLIB ERROR: XPM files with colors > 32766 or < 1 not supported\n");
free(line);
fclose(f);
xpm_parse_done();
return 0;
}
if ((cpp > 5) || (cpp < 1))
{
fprintf(stderr,
"IMLIB ERROR: XPM files with characters per pixel > 5 or < 1not supported\n");
free(line);
fclose(f);
xpm_parse_done();
return 0;
}
if (!IMAGE_DIMENSIONS_OK(w, h))
{
fprintf(stderr,
"IMLIB ERROR: Invalid image dimension: %dx%d\n",
w, h);
free(line);
fclose(f);
xpm_parse_done();
return 0;
}
im->w = w;
im->h = h;
if (!im->format)
im->format = strdup("xpm");
cmap = malloc(sizeof(struct _cmap) * ncolors);
if (!cmap)
{
free(line);
fclose(f);
xpm_parse_done();
return 0;
}
per_inc = 100.0 / (((float)w) * h);
if (im->loader || immediate_load || progress)
{
im->data =
(DATA32 *) malloc(sizeof(DATA32) * im->w *
im->h);
if (!im->data)
{
free(cmap);
free(line);
fclose(f);
xpm_parse_done();
return 0;
}
ptr = im->data;
pixels = w * h;
end = ptr + (pixels);
}
else
{
free(cmap);
free(line);
fclose(f);
xpm_parse_done();
return 1;
}
j = 0;
context++;
}
else if (context == 1)
{
/* Color Table */
if (j < ncolors)
{
int slen;
int hascolor, iscolor;
iscolor = 0;
hascolor = 0;
tok[0] = 0;
col[0] = 0;
s[0] = 0;
len = strlen(line);
strncpy(cmap[j].str, line, cpp);
cmap[j].str[cpp] = 0;
cmap[j].r = -1;
cmap[j].transp = 0;
for (k = cpp; k < len; k++)
{
if (line[k] != ' ')
{
s[0] = 0;
sscanf(&line[k], "%255s", s);
slen = strlen(s);
k += slen;
if (!strcmp(s, "c"))
iscolor = 1;
if ((!strcmp(s, "m")) || (!strcmp(s, "s"))
|| (!strcmp(s, "g4"))
|| (!strcmp(s, "g"))
|| (!strcmp(s, "c")) || (k >= len))
{
if (k >= len)
{
if (col[0])
{
if (strlen(col) < ( sizeof(col) - 2))
strcat(col, " ");
else
done = 1;
}
if (strlen(col) + strlen(s) <
(sizeof(col) - 1))
strcat(col, s);
}
if (col[0])
{
if (!strcasecmp(col, "none"))
{
transp = 1;
cmap[j].transp = 1;
}
else
{
if ((((cmap[j].r < 0) ||
(!strcmp(tok, "c")))
&& (!hascolor)))
{
r = 0;
g = 0;
b = 0;
xpm_parse_color(col,
&r,
&g,
&b);
cmap[j].r = r;
cmap[j].g = g;
cmap[j].b = b;
if (iscolor)
hascolor = 1;
}
}
}
strcpy(tok, s);
col[0] = 0;
}
else
{
if (col[0])
{
if (strlen(col) < ( sizeof(col) - 2))
strcat(col, " ");
else
done = 1;
}
if (strlen(col) + strlen(s) <
(sizeof(col) - 1))
strcat(col, s);
}
}
}
}
j++;
if (j >= ncolors)
{
if (cpp == 1)
for (i = 0; i < ncolors; i++)
lookup[(int)cmap[i].str[0] - 32][0] = i;
if (cpp == 2)
for (i = 0; i < ncolors; i++)
lookup[(int)cmap[i].str[0] -
32][(int)cmap[i].str[1] - 32] = i;
context++;
}
if (transp >= 0)
{
SET_FLAG(im->flags, F_HAS_ALPHA);
}
else
{
UNSET_FLAG(im->flags, F_HAS_ALPHA);
}
}
else
{
/* Image Data */
i = 0;
if (cpp == 0)
{
/* Chars per pixel = 0? well u never know */
}
if (cpp == 1)
{
if (transp)
{
for (i = 0;
((i < 65536) && (ptr < end) && (line[i]));
i++)
{
col[0] = line[i];
if (cmap[lookup[(int)col[0] - 32][0]].
transp)
{
r = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[0]].r;
g = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[0]].g;
b = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[0]].b;
*ptr++ =
0x00ffffff & ((r << 16) |
(g << 8) | b);
count++;
}
else
{
r = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[0]].r;
g = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[0]].g;
b = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[0]].b;
*ptr++ =
(0xff << 24) | (r << 16) | (g <<
8) |
b;
count++;
}
}
}
else
{
for (i = 0;
((i < 65536) && (ptr < end) && (line[i]));
i++)
{
col[0] = line[i];
r = (unsigned char)
cmap[lookup[(int)col[0] - 32][0]].r;
g = (unsigned char)
cmap[lookup[(int)col[0] - 32][0]].g;
b = (unsigned char)
cmap[lookup[(int)col[0] - 32][0]].b;
*ptr++ =
(0xff << 24) | (r << 16) | (g << 8) |
b;
count++;
}
}
}
else if (cpp == 2)
{
if (transp)
{
for (i = 0;
((i < 65536) && (ptr < end) && (line[i]));
i++)
{
col[0] = line[i++];
col[1] = line[i];
if (cmap
[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].transp)
{
r = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].r;
g = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].g;
b = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].b;
*ptr++ =
0x00ffffff & ((r << 16) |
(g << 8) | b);
count++;
}
else
{
r = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].r;
g = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].g;
b = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].b;
*ptr++ =
(0xff << 24) | (r << 16) | (g <<
8) |
b;
count++;
}
}
}
else
{
for (i = 0;
((i < 65536) && (ptr < end) && (line[i]));
i++)
{
col[0] = line[i++];
col[1] = line[i];
r = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].r;
g = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].g;
b = (unsigned char)
cmap[lookup[(int)col[0] - 32]
[(int)col[1] - 32]].b;
*ptr++ =
(0xff << 24) | (r << 16) | (g << 8) |
b;
count++;
}
}
}
else
{
if (transp)
{
for (i = 0;
((i < 65536) && (ptr < end) && (line[i]));
i++)
{
for (j = 0; j < cpp; j++, i++)
{
col[j] = line[i];
}
col[j] = 0;
i--;
for (j = 0; j < ncolors; j++)
{
if (!strcmp(col, cmap[j].str))
{
if (cmap[j].transp)
{
r = (unsigned char)
cmap[lookup
[(int)col[0] -
32][0]].r;
g = (unsigned char)
cmap[lookup
[(int)col[0] -
32][0]].g;
b = (unsigned char)
cmap[lookup
[(int)col[0] -
32][0]].b;
*ptr++ =
0x00ffffff & ((r << 16)
| (g <<
8) |
b);
count++;
}
else
{
r = (unsigned char)cmap[j].
r;
g = (unsigned char)cmap[j].
g;
b = (unsigned char)cmap[j].
b;
*ptr++ =
(0xff << 24) | (r <<
16) |
(g << 8) | b;
count++;
}
j = ncolors;
}
}
}
}
else
{
for (i = 0;
((i < 65536) && (ptr < end) && (line[i]));
i++)
{
for (j = 0; j < cpp; j++, i++)
{
col[j] = line[i];
}
col[j] = 0;
i--;
for (j = 0; j < ncolors; j++)
{
if (!strcmp(col, cmap[j].str))
{
r = (unsigned char)cmap[j].r;
g = (unsigned char)cmap[j].g;
b = (unsigned char)cmap[j].b;
*ptr++ =
(0xff << 24) | (r << 16) |
(g << 8) | b;
count++;
j = ncolors;
}
}
}
}
}
per += per_inc;
if (progress && (((int)per) != last_per)
&& (((int)per) % progress_granularity == 0))
{
last_per = (int)per;
if (!(progress(im, (int)per, 0, last_y, w, i)))
{
fclose(f);
free(cmap);
free(line);
xpm_parse_done();
return 2;
}
last_y = i;
}
}
}
}
/* Scan in line from XPM file */
if ((!comment) && (quote) && (c != '"'))
{
if (c < 32)
c = 32;
else if (c > 127)
c = 127;
if ( c=='\\' ) {
if ( ++backslash<2 ) {
line[i++] = c;
}
else {
backslash = 0;
}
}
else {
backslash = 0;
line[i++] = c;
}
}
if (i >= lsz)
{
lsz += 256;
line = realloc(line, lsz);
}
if (((ptr) && ((ptr - im->data) >= (w * h * sizeof(DATA32)))) ||
((context > 1) && (count >= pixels)))
done = 1;
}
if (progress)
{
progress(im, 100, 0, last_y, w, h);
}
fclose(f);
free(cmap);
free(line);
xpm_parse_done();
return 1;
}
/* fills the ImlibLoader struct with a strign array of format file */
/* extensions this loader can load. eg: */
/* loader->formats = { "jpeg", "jpg"}; */
/* giving permutations is a good idea. case sensitivity is irrelevant */
/* your laoder CAN load more than one format if it likes - like: */
/* loader->formats = { "gif", "png", "jpeg", "jpg"} */
/* if it can load those formats. */
void
formats(ImlibLoader * l)
{
/* this is the only bit you have to change... */
char *list_formats[] = { "xpm" };
/* don't bother changing any of this - it just reads this in and sets */
/* the struct values and makes copies */
{
int i;
l->num_formats = (sizeof(list_formats) / sizeof(char *));
l->formats = malloc(sizeof(char *) * l->num_formats);
for (i = 0; i < l->num_formats; i++)
l->formats[i] = strdup(list_formats[i]);
}
}