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#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <X11/Xlib.h>
#include <X11/Intrinsic.h>
#include "ida.h"
#include "loader.h"
#include "viewer.h"
/* ---------------------------------------------------------------------- */
/* load */
struct xpm_color {
char name[8];
XColor color;
};
struct xpm_state {
FILE *infile;
int width,height,colors,chars;
struct xpm_color *cmap;
char *charline;
char *rgbrow;
};
static void*
xpm_init(FILE *fp, char *filename, struct ida_image_info *info)
{
struct xpm_state *h;
char line[1024],cname[32];
XColor dummy;
int i;
Colormap cmap = DefaultColormapOfScreen(XtScreen(app_shell));
h = malloc(sizeof(*h));
memset(h,0,sizeof(*h));
h->infile = fp;
fgets(line,sizeof(line)-1,fp); /* XPM */
fgets(line,sizeof(line)-1,fp); /* static char ... */
if (0 == strncmp(line,"/*",2)) {
while (NULL == strstr(line,"*/"))
fgets(line,sizeof(line)-1,fp);
fgets(line,sizeof(line)-1,fp);
}
/* size, colors */
fgets(line,sizeof(line)-1,fp);
if (0 == strncmp(line,"/*",2)) {
while (NULL == strstr(line,"*/"))
fgets(line,sizeof(line)-1,fp);
fgets(line,sizeof(line)-1,fp);
}
if (4 != sscanf(line,"\"%d %d %d %d",
&h->width,&h->height,&h->colors,&h->chars))
goto oops;
if (h->chars > 7)
goto oops;
/* read color table */
h->cmap = malloc(h->colors * sizeof(struct xpm_color));
memset(h->cmap,0,h->colors * sizeof(struct xpm_color));
for (i = 0; i < h->colors; i++) {
fgets(line,sizeof(line)-1,fp);
if (0 == strncmp(line,"/*",2)) {
while (NULL == strstr(line,"*/"))
fgets(line,sizeof(line)-1,fp);
fgets(line,sizeof(line)-1,fp);
}
memcpy(h->cmap[i].name,line+1,h->chars);
if (1 != sscanf(line+1+h->chars," c %32[^\"]",cname))
goto oops;
XLookupColor(dpy,cmap,cname,&h->cmap[i].color,&dummy);
}
h->charline = malloc(h->width * h->chars + 8);
h->rgbrow = malloc(h->width * 3);
info->width = h->width;
info->height = h->height;
return h;
oops:
fclose(fp);
free(h);
return NULL;
}
static void
xpm_read(unsigned char *dst, int line, void *data)
{
struct xpm_state *h = data;
char *src;
int i,c;
fgets(h->charline,h->width * h->chars + 8,h->infile);
src = h->charline+1;
for (i = 0; i < h->width; i++) {
for (c = 0; c < h->colors; c++)
if (0 == strncmp(src,h->cmap[c].name,h->chars))
break;
if (c == h->colors)
continue;
dst[0] = h->cmap[c].color.red >> 8;
dst[1] = h->cmap[c].color.green >> 8;
dst[2] = h->cmap[c].color.blue >> 8;
src += h->chars;
dst += 3;
}
}
static void
xpm_done(void *data)
{
struct xpm_state *h = data;
fclose(h->infile);
free(h->charline);
free(h->rgbrow);
free(h->cmap);
free(h);
}
/* ---------------------------------------------------------------------- */
struct xbm_state {
FILE *infile;
int width,height;
};
static void*
xbm_init(FILE *fp, char *filename, struct ida_image_info *info)
{
struct xbm_state *h;
char line[256],dummy[128];
int i;
h = malloc(sizeof(*h));
memset(h,0,sizeof(*h));
h->infile = fp;
for (i = 0; i < 128; i++) {
fgets(line,sizeof(line)-1,fp);
if (0 == strncmp(line,"#define",7))
break;
}
if (128 == i)
goto oops;
if (2 != sscanf(line,"#define %127s %d",dummy,&h->width))
goto oops;
fgets(line,sizeof(line)-1,fp);
if (2 != sscanf(line,"#define %127s %d",dummy,&h->height))
goto oops;
if (debug)
fprintf(stderr,"xbm: %dx%d\n",h->width,h->height);
for (i = 0; i < 4; i++) {
fgets(line,sizeof(line)-1,fp);
if (strstr(line,"[] = {"))
break;
}
if (4 == i)
goto oops;
info->width = h->width;
info->height = h->height;
return h;
oops:
if (debug)
fprintf(stderr,"xbm: %s",line);
fclose(fp);
free(h);
return NULL;
}
static void
xbm_read(unsigned char *dst, int line, void *data)
{
struct xbm_state *h = data;
int x,val;
for (x = 0; x < h->width; x++) {
if (0 == (x % 8))
fscanf(h->infile," 0x%x,",&val);
if (val & (1 << (x % 8))) {
*(dst++) = 0;
*(dst++) = 0;
*(dst++) = 0;
} else {
*(dst++) = 255;
*(dst++) = 255;
*(dst++) = 255;
}
}
}
static void
xbm_done(void *data)
{
struct xpm_state *h = data;
fclose(h->infile);
free(h);
}
/* ---------------------------------------------------------------------- */
struct ida_loader xpm_loader = {
magic: "/* XPM */",
moff: 0,
mlen: 9,
name: "xpm parser",
init: xpm_init,
read: xpm_read,
done: xpm_done,
};
struct ida_loader xbm1_loader = {
magic: "#define",
moff: 0,
mlen: 7,
name: "xbm parser",
init: xbm_init,
read: xbm_read,
done: xbm_done,
};
struct ida_loader xbm2_loader = {
magic: "/*",
moff: 0,
mlen: 2,
name: "xbm parser",
init: xbm_init,
read: xbm_read,
done: xbm_done,
};
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