-/* xscreensaver, Copyright (c) 2001-2002, 2003 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 2001-2006 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
/* XScreenSaver Logo designed by Angela Goodman <rzr_grl@yahoo.com>
*/
-/* I basically implemented libXPM here, because I don't want the
- xscreensaver daemon to depend on libXPM for two reasons: first,
- because I want the logo to show up even if libXPM is not installed
- on the system; and second, I don't want to have to security-audit
- libXPM. The fewer libraries that are linked into the xscreensaver
- daemon, the more likely to be secure it is.
- */
-
/* If you are looking in here because you're trying to figure out how to
change the logo that xscreensaver displays on the splash screen and
password dialog, please don't. The logo is xscreensaver's identity.
#include "utils.h"
#include "resources.h"
#include "visual.h"
+#include "minixpm.h"
#include <stdio.h>
-#include <X11/Xutil.h>
#include "images/logo-50.xpm"
#include "images/logo-180.xpm"
-static const char hex[128] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0,
- 0, 10,11,12,13,14,15,0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 10,11,12,13,14,15,0, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
-
-static XImage *
-parse_xpm_data (Display *dpy, Visual *visual, Colormap colormap, int depth,
- unsigned long transparent_color,
- const char * const * data,
- int *width_ret, int *height_ret,
- unsigned long **pixels_ret, int *npixels_ret,
- unsigned char **mask_ret)
-{
- int w, w8, h, ncolors, nbytes;
- char c;
- int i, pixel_count;
- struct {
- char byte;
- int cr; int cg; int cb;
- int mr; int mg; int mb;
- } cmap[256];
- unsigned char rmap[256];
-
- unsigned long *pixels;
- XImage *ximage = 0;
-
- if (4 != sscanf ((const char *) *data,
- "%d %d %d %d %c", &w, &h, &ncolors, &nbytes, &c))
- abort();
- if (ncolors < 1 || ncolors > 255)
- abort();
- if (nbytes != 1)
- abort();
- data++;
-
- w8 = (w + 8) / 8;
-
- if (mask_ret)
- {
- int s = (w8 * h) + 1;
- *mask_ret = (unsigned char *) malloc (s);
- if (!*mask_ret)
- mask_ret = 0;
- else
- memset (*mask_ret, 255, s);
- }
-
- for (i = 0; i < ncolors; i++)
- {
- const char *line = *data;
- cmap[i].byte = *line++;
- while (*line)
- {
- int r, g, b;
- char which;
- while (*line == ' ' || *line == '\t')
- line++;
- which = *line++;
- if (which != 'c' && which != 'm')
- abort();
- while (*line == ' ' || *line == '\t')
- line++;
- if (!strncasecmp(line, "None", 4))
- {
- r = g = b = -1;
- line += 4;
- }
- else
- {
- if (*line == '#')
- line++;
- r = (hex[(int) line[0]] << 4) | hex[(int) line[1]]; line += 2;
- g = (hex[(int) line[0]] << 4) | hex[(int) line[1]]; line += 2;
- b = (hex[(int) line[0]] << 4) | hex[(int) line[1]]; line += 2;
- }
-
- if (which == 'c')
- {
- cmap[i].cr = r;
- cmap[i].cg = g;
- cmap[i].cb = b;
- }
- else
- {
- cmap[i].mr = r;
- cmap[i].mg = g;
- cmap[i].mb = b;
- }
- }
-
- data++;
- }
-
- if (depth == 1) transparent_color = 1;
-
- pixels = (unsigned long *) calloc (ncolors+1, sizeof(*pixels));
- pixel_count = 0;
- for (i = 0; i < ncolors; i++)
- {
- if (cmap[i].cr == -1) /* transparent */
- {
- rmap[(int) cmap[i].byte] = 255;
- }
- else
- {
- XColor color;
- color.flags = DoRed|DoGreen|DoBlue;
- color.red = (cmap[i].cr << 8) | cmap[i].cr;
- color.green = (cmap[i].cg << 8) | cmap[i].cg;
- color.blue = (cmap[i].cb << 8) | cmap[i].cb;
- if (depth == 1 ||
- !XAllocColor (dpy, colormap, &color))
- {
- color.red = (cmap[i].mr << 8) | cmap[i].mr;
- color.green = (cmap[i].mg << 8) | cmap[i].mg;
- color.blue = (cmap[i].mb << 8) | cmap[i].mb;
- if (!XAllocColor (dpy, colormap, &color))
- abort();
- }
- pixels[pixel_count] = color.pixel;
- rmap[(int) cmap[i].byte] = pixel_count;
- pixel_count++;
- }
- }
-
- ximage = XCreateImage (dpy, visual, depth,
- (depth == 1 ? XYBitmap : ZPixmap),
- 0, 0, w, h, 8, 0);
- if (ximage)
- {
- int x, y;
- ximage->data = (char *) calloc (ximage->height, ximage->bytes_per_line);
- for (y = 0; y < h; y++)
- {
- const char *line = *data++;
- for (x = 0; x < w; x++)
- {
- int p = rmap[(int) *line];
- line++;
- XPutPixel (ximage, x, y,
- (p == 255 ? transparent_color : pixels[p]));
-
- if (p == 255 && mask_ret)
- (*mask_ret)[(y * w8) + (x >> 3)] &= (~(1 << (x % 8)));
- }
- }
- }
-
- *width_ret = w;
- *height_ret = h;
- *pixels_ret = pixels;
- *npixels_ret = pixel_count;
- return ximage;
-}
-
-
-
/* Returns a pixmap of the xscreensaver logo.
*/
Pixmap
Pixmap p = 0;
unsigned char *mask = 0;
- image = parse_xpm_data (dpy, visual, cmap, depth, background_color,
- (big_p ? logo_180_xpm : logo_50_xpm),
- &iw, &ih, pixels_ret, npixels_ret,
- (mask_ret ? &mask : 0));
+ image = minixpm_to_ximage (dpy, visual, cmap, depth, background_color,
+ (big_p ? logo_180_xpm : logo_50_xpm),
+ &iw, &ih, pixels_ret, npixels_ret,
+ (mask_ret ? &mask : 0));
if (image)
{
projects / xscreensaver / blobdiff