+++ /dev/null
-/*
-** Helpful definitions for porting xlock modes to xscreensaver.
-** by Charles Hannum, mycroft@ai.mit.edu
-**
-** for xlock 2.3 and xscreensaver 1.2, 28AUG92
-**
-** Modified for xlockmore 3.0 by Anthony Thyssen <anthony@cit.gu.edu.au>
-** on August 1995.
-**
-** Tweaked by jwz to work with both ANSI and K&R compilers, 10-May-97.
-**
-** Note: this file no longer works as of (at least) xlockmore 4.03a10:
-** see jwz's new xlockmore.h file for a similar hack that works with
-** code written for that version.
-**
-** To use, just copy the appropriate file from xlock, add a target
-** for it in the Imakefile, and do the following:
-**
-** 1) If you include math.h, make sure it is before xlock.h.
-** 2) Make sure the first thing you do in initfoo() is to call
-** XGetWindowAttributes. This is what actually sets up the
-** colormap and whatnot.
-** 3) Add an appropriate PROGRAM() line at the end of the .c file.
-** The information you need for this comes from xlock's file
-** resource.c.
-**
-** That's about all there is to it.
-**
-** As an added bonus, if you put an empty definition of PROGRAM() in
-** xlock's xlock.h, you can now use the code with either xlock or
-** xscreensaver.
-**
-**
-** If you make any improvements to this code, please send them to me!
-** It could certainly use some more work.
-*/
-
-#include "screenhack.h"
-
-#define MAXSCREENS 1
-
-static GC gc;
-static unsigned long *pixels = 0, fg_pixel, bg_pixel;
-static int npixels;
-static Colormap cmap;
-
-static int batchcount;
-static unsigned int delay;
-static unsigned int cycles;
-static double saturation;
-
-#ifndef min
-#define min(a,b) ((a)<(b)?(a):(b))
-#endif
-
-typedef struct {
- GC gc;
- int npixels;
- u_long *pixels;
-} perscreen;
-
-static perscreen Scr[MAXSCREENS];
-static Display *dsp;
-
-static int screen = 0;
-
-static void
-#ifdef __STDC__
-My_XGetWindowAttributes (Display *dpy, Window win, XWindowAttributes *xgwa)
-#else /* !__STDC__ */
-My_XGetWindowAttributes (dpy, win, xgwa)
- Display *dpy;
- Window win;
- XWindowAttributes *xgwa;
-#endif /* !__STDC__ */
-{
- XGetWindowAttributes (dpy, win, xgwa);
-
- if (! pixels) {
- XGCValues gcv;
- XColor color;
- int n;
- int i, shift;
-
- cmap = xgwa->colormap;
-
- i = get_integer_resource ("ncolors", "Integer");
- if (i <= 2) i = 2, mono_p = True;
- shift = 360 / i;
- pixels = (unsigned long *) calloc (i, sizeof (unsigned long));
- fg_pixel = get_pixel_resource ("foreground", "Foreground", dpy, cmap);
- bg_pixel = get_pixel_resource ("background", "Background", dpy, cmap);
- if (! mono_p) {
- for (npixels = 0; npixels < i; npixels++) {
- hsv_to_rgb ((360*npixels)/i, saturation, 1.0,
- &color.red, &color.green, &color.blue);
- if (! XAllocColor (dpy, cmap, &color))
- break;
- pixels[npixels] = color.pixel;
- }
- }
- n = get_integer_resource ("delay", "Usecs");
- if (n >= 0) delay = n;
- n = get_integer_resource ("count", "Integer");
- if (n > 0) batchcount = n;
-
- n = get_integer_resource ("cycles", "Integer");
- if (n >= 0) cycles = n;
-
- gcv.foreground = fg_pixel;
- gcv.background = bg_pixel;
- gc = XCreateGC (dpy, win, GCForeground|GCBackground, &gcv);
-
- XClearWindow (dpy, win);
-
- Scr[screen].gc = gc;
- Scr[screen].npixels = npixels;
- Scr[screen].pixels = pixels;
- }
-}
-
-#define XGetWindowAttributes(a,b,c) My_XGetWindowAttributes(a,b,c)
-
-#undef BlackPixel
-#define BlackPixel(a,b) bg_pixel
-#undef WhitePixel
-#define WhitePixel(a,b) fg_pixel
-#define mono mono_p
-
-#define seconds() time((time_t*)0)
-
-char *defaults[] = {
- "*background: black",
- "*foreground: white",
- "*ncolors: 64",
- "*delay: -1",
- "*count: -1",
- "*cycles: -1",
- 0
-};
-
-XrmOptionDescRec options[] = {
- {"-count", ".count", XrmoptionSepArg, 0},
- {"-ncolors", ".ncolors", XrmoptionSepArg, 0},
- {"-delay", ".delay", XrmoptionSepArg, 0},
- {"-cycles", ".cycles", XrmoptionSepArg, 0},
- { 0, 0, 0, 0 }
-};
-
-#if defined(__STDC__) || defined(__ANSI_CPP__)
-# define XLOCK_INIT(Z) init##Z
-# define XLOCK_DRAW(Z) draw##Z
-#else /* K&R CPP */
-# define XLOCK_INIT(Z) init/**/Z
-# define XLOCK_DRAW(Z) draw/**/Z
-#endif /* K&R CPP */
-
-#ifdef __STDC__
-# define XLOCK_SCREENHACK_PROTOTYPE() \
- screenhack(Display *dpy, Window window)
-# define XLOCK_PROTOS(Z) /* */
-#else /* K&R C */
-# define XLOCK_SCREENHACK_PROTOTYPE() \
- screenhack(dpy, window) \
- Display *dpy; \
- Window window;
-# define XLOCK_PROTOS(Z) \
- void init##Z(Window); \
- void draw##Z(Window); \
-
-#endif /* K&R C */
-
-#define PROGRAM(Y,Z,D,B,C,S) \
- char *progclass = Y; \
- XLOCK_PROTOS(Z) \
- \
- void XLOCK_SCREENHACK_PROTOTYPE() \
- { \
- batchcount = B; \
- delay = D; \
- cycles = C; \
- saturation = S; \
- dsp = dpy; \
- \
- XLOCK_INIT(Z) (window); \
- while (1) \
- { \
- XLOCK_DRAW(Z) (window); \
- XSync (dpy, True); \
- if (delay) usleep (delay); \
- } \
- }
projects / xscreensaver / blobdiff