Bool
setupColormap(ModeInfo * mi, int *colors, Bool * truecolor,
unsigned long *red_mask, unsigned long *blue_mask, unsigned long *green_mask)
{
/* how many colours are there altogether? */
*colors = MI_NPIXELS(mi);
if (*colors > MI_COLORMAP_SIZE(mi)) {
*colors = MI_COLORMAP_SIZE(mi);
}
if (*colors < 2)
*colors = 2;
*truecolor = (MI_VISUALCLASS(mi) == TrueColor);
*red_mask = MI_RED_MASK(mi);
*green_mask = MI_GREEN_MASK(mi);
*blue_mask = MI_BLUE_MASK(mi);
return !fixedColors(mi);
}
void
getImage(ModeInfo * mi, XImage ** logo,
int default_width, int default_height, unsigned char *default_bits,
#ifdef HAVE_XPM
int default_xpm, char **name,
#endif
int *graphics_format, Colormap * ncm,
unsigned long *black)
{
Display *display = MI_DISPLAY(mi);
static char *bitmap_local = (char *) NULL;
#ifndef STANDALONE
#ifdef HAVE_XPM
XpmAttributes attrib;
#endif
#if 0
/* This probably works best in most cases but for random mode used
with random selection of a file it will fail often. */
*ncm = None;
#else
if (!fixedColors(mi))
*ncm = XCreateColormap(display, MI_WINDOW(mi), MI_VISUAL(mi), AllocNone);
else
*ncm = None;
#endif
#ifdef HAVE_XPM
attrib.visual = MI_VISUAL(mi);
if (*ncm == None) {
attrib.colormap = MI_COLORMAP(mi);
} else {
attrib.colormap = *ncm;
}
attrib.depth = MI_DEPTH(mi);
attrib.valuemask = XpmVisual | XpmColormap | XpmDepth;
#endif
#endif /* !STANDALONE */
*graphics_format = 0;
if (bitmap_local != NULL) {
free(bitmap_local);
bitmap_local = (char *) NULL;
}
if (MI_BITMAP(mi) && strlen(MI_BITMAP(mi))) {
#ifdef STANDALONE
bitmap_local = MI_BITMAP(mi);
#else
if ((bitmap_local = (char *) malloc(256)) == NULL) {
(void) fprintf(stderr , "no memory for \"%s\"\n" ,
MI_BITMAP(mi));
return;
}
(void) strncpy(bitmap_local, MI_BITMAP(mi), 256);
#if HAVE_DIRENT_H
getRandomFile(MI_BITMAP(mi), bitmap_local);
#endif
#endif /* STANDALONE */
}
if (bitmap_local && strlen(bitmap_local)) {
#if defined( USE_MAGICK ) && !defined( STANDALONE )
if ( readable( bitmap_local ) )
{
if ( MI_NPIXELS( mi ) > 2 )
{
Colormap magick_colormap;
if (*ncm == None) {
magick_colormap = MI_COLORMAP(mi);
} else {
magick_colormap = *ncm;
}
if ( MagickSuccess == MagickFileToImage( mi ,
bitmap_local ,
logo ,
magick_colormap
) )
{
*graphics_format = IS_MAGICKFILE;
*black = GetColor(mi, MI_BLACK_PIXEL(mi));
(void) GetColor(mi, MI_WHITE_PIXEL(mi));
(void) GetColor(mi, MI_BG_PIXEL(mi));
(void) GetColor(mi, MI_FG_PIXEL(mi));
}
}
}
else
{
(void) fprintf(stderr , "could not read file \"%s\"\n" ,
bitmap_local);
}
#else
# ifndef STANDALONE
if (readable(bitmap_local)) {
if (MI_NPIXELS(mi) > 2) {
Colormap ras_colormap;
if (*ncm == None) {
ras_colormap = MI_COLORMAP(mi);
} else {
ras_colormap = *ncm;
}
if (RasterSuccess == RasterFileToImage(mi,
bitmap_local, logo ,
ras_colormap )) {
*graphics_format = IS_RASTERFILE;
*black = GetColor(mi, MI_BLACK_PIXEL(mi));
(void) GetColor(mi, MI_WHITE_PIXEL(mi));
(void) GetColor(mi, MI_BG_PIXEL(mi));
(void) GetColor(mi, MI_FG_PIXEL(mi));
}
}
} else {
(void) fprintf(stderr,
"could not read file \"%s\"\n", bitmap_local);
}
#ifdef HAVE_XPM
#ifndef USE_MONOXPM
if (MI_NPIXELS(mi) > 2)
#endif
{
if (*graphics_format <= 0) {
if (*ncm != None)
reserveColors(mi, *ncm, black);
if (XpmSuccess == XpmReadFileToImage(display,
bitmap_local, logo,
(XImage **) NULL, &attrib))
*graphics_format = IS_XPMFILE;
}
}
#endif
#endif /* !STANDALONE */
if (*graphics_format <= 0) {
if (!blogo.data) {
if (BitmapSuccess == XbmReadFileToImage(bitmap_local,
&blogo.width, &blogo.height,
(unsigned char **) &blogo.data)) {
blogo.bytes_per_line = (blogo.width + 7) / 8;
*graphics_format = IS_XBMFILE;
*logo = &blogo;
}
} else {
*graphics_format = IS_XBMDONE;
*logo = &blogo;
}
}
#endif
if (*graphics_format <= 0 && MI_IS_VERBOSE(mi))
(void) fprintf(stderr,
"\"%s\" is in an unrecognized format or not compatible with screen\n",
bitmap_local);
}
#ifndef STANDALONE
#ifdef HAVE_XPM
if (*graphics_format <= 0 &&
((MI_IS_FULLRANDOM(mi)) ? LRAND() & 1: default_xpm))
#ifndef USE_MONOXPM
if (MI_NPIXELS(mi) > 2)
#endif
if (XpmSuccess == XpmCreateImageFromData(display, name,
logo, (XImage **) NULL, &attrib))
*graphics_format = IS_XPM;
#endif
#endif /* STANDALONE */
if (*graphics_format <= 0) {
if (!blogo.data) {
blogo.data = (char *) default_bits;
blogo.width = default_width;
blogo.height = default_height;
blogo.bytes_per_line = (blogo.width + 7) / 8;
*graphics_format = IS_XBM;
} else
*graphics_format = IS_XBMDONE;
*logo = &blogo;
}
#ifndef STANDALONE /* Come back later */
if (*ncm != None && *graphics_format != IS_RASTERFILE &&
*graphics_format != IS_XPMFILE && *graphics_format != IS_XPM &&
*graphics_format != IS_MAGICKFILE) {
XFreeColormap(display, *ncm);
*ncm = None;
}
#endif /* STANDALONE */ /* Come back later */
}
