-/* glknots, Copyright (c) 2003 Jamie Zawinski <jwz@jwz.org>
+/* glknots, Copyright (c) 2003-2008 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
* http://astronomy.swin.edu.au/~pbourke/curves/knot/
*/
-#include <X11/Intrinsic.h>
-
-extern XtAppContext app;
-
-#define PROGCLASS "GLKnots"
-#define HACK_INIT init_knot
-#define HACK_DRAW draw_knot
-#define HACK_RESHAPE reshape_knot
-#define HACK_HANDLE_EVENT knot_handle_event
-#define EVENT_MASK PointerMotionMask
-#define sws_opts xlockmore_opts
-
-#define DEF_SPIN "XYZ"
-#define DEF_WANDER "True"
-#define DEF_SPEED "1.0"
-#define DEF_THICKNESS "0.3"
-#define DEF_SEGMENTS "800"
-#define DEF_DURATION "8"
-
#define DEFAULTS "*delay: 30000 \n" \
"*showFPS: False \n" \
"*wireframe: False \n" \
- "*speed: " DEF_SPEED " \n" \
- "*spin: " DEF_SPIN "\n" \
- "*wander: " DEF_WANDER "\n" \
- "*thickness: " DEF_THICKNESS "\n" \
- "*segments: " DEF_SEGMENTS "\n" \
- "*duration: " DEF_DURATION "\n" \
+# define refresh_knot 0
+# define release_knot 0
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
#ifdef USE_GL /* whole file */
-#include <GL/glu.h>
+#define DEF_SPIN "XYZ"
+#define DEF_WANDER "True"
+#define DEF_SPEED "1.0"
+#define DEF_THICKNESS "0.3"
+#define DEF_SEGMENTS "800"
+#define DEF_DURATION "8"
typedef struct {
GLXContext *glx_context;
int mode_tick;
Bool clear_p;
+ time_t last_time;
+ int draw_tick;
+
} knot_configuration;
static knot_configuration *bps = NULL;
};
static argtype vars[] = {
- {(caddr_t *) &do_spin, "spin", "Spin", DEF_SPIN, t_String},
- {(caddr_t *) &do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
- {(caddr_t *) &speed, "speed", "Speed", DEF_SPEED, t_Float},
- {(caddr_t *) &thickness, "thickness", "Thickness", DEF_THICKNESS, t_Float},
- {(caddr_t *) &segments, "segments", "Segments", DEF_SEGMENTS, t_Int},
- {(caddr_t *) &duration, "duration", "Duration", DEF_DURATION, t_Int},
+ {&do_spin, "spin", "Spin", DEF_SPIN, t_String},
+ {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
+ {&speed, "speed", "Speed", DEF_SPEED, t_Float},
+ {&thickness, "thickness", "Thickness", DEF_THICKNESS, t_Float},
+ {&segments, "segments", "Segments", DEF_SEGMENTS, t_Int},
+ {&duration, "duration", "Duration", DEF_DURATION, t_Int},
};
-ModeSpecOpt sws_opts = {countof(opts), opts, countof(vars), vars, NULL};
+ENTRYPOINT ModeSpecOpt knot_opts = {countof(opts), opts, countof(vars), vars, NULL};
static void
di = (di * di * 3);
}
- tube (ox, oy, oz,
- x, y, z,
- di, dist/3,
- faces, True, wire, wire);
-
- mi->polygon_count += faces;
+ mi->polygon_count += tube (ox, oy, oz,
+ x, y, z,
+ di, dist/3,
+ faces, True, wire, wire);
}
ox = x;
/* Window management, etc
*/
-void
+ENTRYPOINT void
reshape_knot (ModeInfo *mi, int width, int height)
{
GLfloat h = (GLfloat) height / (GLfloat) width;
}
-Bool
+ENTRYPOINT Bool
knot_handle_event (ModeInfo *mi, XEvent *event)
{
knot_configuration *bp = &bps[MI_SCREEN(mi)];
if (event->xany.type == ButtonPress &&
- event->xbutton.button & Button1)
+ event->xbutton.button == Button1)
{
bp->button_down_p = True;
gltrackball_start (bp->trackball,
return True;
}
else if (event->xany.type == ButtonRelease &&
- event->xbutton.button & Button1)
+ event->xbutton.button == Button1)
{
bp->button_down_p = False;
return True;
}
+ else if (event->xany.type == ButtonPress &&
+ (event->xbutton.button == Button4 ||
+ event->xbutton.button == Button5 ||
+ event->xbutton.button == Button6 ||
+ event->xbutton.button == Button7))
+ {
+ gltrackball_mousewheel (bp->trackball, event->xbutton.button, 5,
+ !!event->xbutton.state);
+ return True;
+ }
else if (event->xany.type == MotionNotify &&
bp->button_down_p)
{
-void
+ENTRYPOINT void
init_knot (ModeInfo *mi)
{
knot_configuration *bp;
if (*s == 'x' || *s == 'X') spinx = True;
else if (*s == 'y' || *s == 'Y') spiny = True;
else if (*s == 'z' || *s == 'Z') spinz = True;
+ else if (*s == '0') ;
else
{
fprintf (stderr,
}
-void
+ENTRYPOINT void
draw_knot (ModeInfo *mi)
{
knot_configuration *bp = &bps[MI_SCREEN(mi)];
Display *dpy = MI_DISPLAY(mi);
Window window = MI_WINDOW(mi);
- static GLfloat bcolor[4] = {0.0, 0.0, 0.0, 1.0};
- static GLfloat bspec[4] = {1.0, 1.0, 1.0, 1.0};
- static GLfloat bshiny = 128.0;
-
- static time_t last_time = 0;
+ GLfloat bcolor[4] = {0.0, 0.0, 0.0, 1.0};
+ GLfloat bspec[4] = {1.0, 1.0, 1.0, 1.0};
+ GLfloat bshiny = 128.0;
if (!bp->glx_context)
return;
+ glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(bp->glx_context));
+
if (bp->mode == 0)
{
- static int tick = 0;
- if (tick++ > 10)
+ if (bp->draw_tick++ > 10)
{
time_t now = time((time_t *) 0);
- if (last_time == 0) last_time = now;
- tick = 0;
+ if (bp->last_time == 0) bp->last_time = now;
+ bp->draw_tick = 0;
if (!bp->button_down_p &&
- now - last_time >= duration)
+ now - bp->last_time >= duration)
{
bp->mode = 1; /* go out */
bp->mode_tick = 10 * speed;
- last_time = now;
+ bp->last_time = now;
}
}
}
glXSwapBuffers(dpy, window);
}
+XSCREENSAVER_MODULE_2 ("GLKnots", glknots, knot)
+
#endif /* USE_GL */
projects / xscreensaver / blobdiff