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-rw-r--r--hacks/glx/voronoi.c557
1 files changed, 0 insertions, 557 deletions
diff --git a/hacks/glx/voronoi.c b/hacks/glx/voronoi.c
deleted file mode 100644
index d2c3bb7..0000000
--- a/hacks/glx/voronoi.c
+++ /dev/null
@@ -1,557 +0,0 @@
-/* voronoi, Copyright (c) 2007-2018 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
- * the above copyright notice appear in all copies and that both that
- * copyright notice and this permission notice appear in supporting
- * documentation. No representations are made about the suitability of this
- * software for any purpose. It is provided "as is" without express or
- * implied warranty.
- */
-
-#define DEFAULTS "*delay: 20000 \n" \
- "*showFPS: False \n" \
- "*suppressRotationAnimation: True\n" \
-
-# define release_voronoi 0
-
-#define BELLRAND(n) ((frand((n)) + frand((n)) + frand((n))) / 3)
-
-
-#include "xlockmore.h"
-#include <ctype.h>
-
-#ifdef USE_GL /* whole file */
-
-#define DEF_POINTS "25"
-#define DEF_POINT_SIZE "9"
-#define DEF_POINT_SPEED "1.0"
-#define DEF_POINT_DELAY "0.05"
-#define DEF_ZOOM_SPEED "1.0"
-#define DEF_ZOOM_DELAY "15"
-
-typedef struct node {
- GLfloat x, y;
- GLfloat dx, dy;
- GLfloat ddx, ddy;
- struct node *next;
- GLfloat color[4], color2[4];
- int rot;
-} node;
-
-typedef struct {
- GLXContext *glx_context;
- node *nodes;
- int nnodes;
- node *dragging;
- int ncolors;
- XColor *colors;
- int point_size;
-
- enum { MODE_WAITING, MODE_ADDING, MODE_ZOOMING } mode;
- int adding;
- double last_time;
-
- GLfloat zooming; /* 1.0 starting zoom, 0.0 no longer zooming. */
- GLfloat zoom_toward[2];
-
-} voronoi_configuration;
-
-static voronoi_configuration *vps = NULL;
-
-/* command line arguments */
-static int npoints;
-static GLfloat point_size, point_speed, point_delay;
-static GLfloat zoom_speed, zoom_delay;
-
-static XrmOptionDescRec opts[] = {
- { "-points", ".points", XrmoptionSepArg, 0 },
- { "-point-size", ".pointSize", XrmoptionSepArg, 0 },
- { "-point-speed", ".pointSpeed", XrmoptionSepArg, 0 },
- { "-point-delay", ".pointDelay", XrmoptionSepArg, 0 },
- { "-zoom-speed", ".zoomSpeed", XrmoptionSepArg, 0 },
- { "-zoom-delay", ".zoomDelay", XrmoptionSepArg, 0 },
-};
-
-static argtype vars[] = {
- {&npoints, "points", "Points", DEF_POINTS, t_Int},
- {&point_size, "pointSize", "PointSize", DEF_POINT_SIZE, t_Float},
- {&point_speed, "pointSpeed", "PointSpeed", DEF_POINT_SPEED, t_Float},
- {&point_delay, "pointDelay", "PointDelay", DEF_POINT_DELAY, t_Float},
- {&zoom_speed, "zoomSpeed", "ZoomSpeed", DEF_ZOOM_SPEED, t_Float},
- {&zoom_delay, "zoomDelay", "ZoomDelay", DEF_ZOOM_DELAY, t_Float},
-};
-
-ENTRYPOINT ModeSpecOpt voronoi_opts =
- {countof(opts), opts, countof(vars), vars, NULL};
-
-
-/* Returns the current time in seconds as a double.
- */
-static double
-double_time (void)
-{
- struct timeval now;
-# ifdef GETTIMEOFDAY_TWO_ARGS
- struct timezone tzp;
- gettimeofday(&now, &tzp);
-# else
- gettimeofday(&now);
-# endif
-
- return (now.tv_sec + ((double) now.tv_usec * 0.000001));
-}
-
-
-static node *
-add_node (voronoi_configuration *vp, GLfloat x, GLfloat y)
-{
- node *nn = (node *) calloc (1, sizeof (*nn));
- int i;
- nn->x = x;
- nn->y = y;
-
- i = random() % vp->ncolors;
- nn->color[0] = vp->colors[i].red / 65536.0;
- nn->color[1] = vp->colors[i].green / 65536.0;
- nn->color[2] = vp->colors[i].blue / 65536.0;
- nn->color[3] = 1.0;
-
- nn->color2[0] = nn->color[0] * 0.7;
- nn->color2[1] = nn->color[1] * 0.7;
- nn->color2[2] = nn->color[2] * 0.7;
- nn->color2[3] = 1.0;
-
- nn->ddx = frand (0.000001 * point_speed) * (random() & 1 ? 1 : -1);
- nn->ddy = frand (0.000001 * point_speed) * (random() & 1 ? 1 : -1);
-
- nn->rot = (random() % 360) * (random() & 1 ? 1 : -1);
-
- nn->next = vp->nodes;
- vp->nodes = nn;
- vp->nnodes++;
- return nn;
-}
-
-
-static int
-cone (void)
-{
- int i;
- int faces = 64;
- GLfloat step = M_PI * 2 / faces;
- GLfloat th = 0;
- GLfloat x = 1;
- GLfloat y = 0;
-
- glBegin(GL_TRIANGLE_FAN);
- glVertex3f (0, 0, 1);
- for (i = 0; i < faces; i++)
- {
- glVertex3f (x, y, 0);
- th += step;
- x = cos (th);
- y = sin (th);
- }
- glVertex3f (1, 0, 0);
- glEnd();
- return faces;
-}
-
-
-static void
-move_points (voronoi_configuration *vp)
-{
- node *nn;
- for (nn = vp->nodes; nn; nn = nn->next)
- {
- if (nn == vp->dragging) continue;
- nn->x += nn->dx;
- nn->y += nn->dy;
-
- if (vp->mode == MODE_WAITING)
- {
- nn->dx += nn->ddx;
- nn->dy += nn->ddy;
- }
- }
-}
-
-
-static void
-prune_points (voronoi_configuration *vp)
-{
- node *nn;
- node *prev = 0;
- int lim = 5;
-
- for (nn = vp->nodes; nn; prev = nn, nn = (nn ? nn->next : 0))
- if (nn->x < -lim || nn->x > lim ||
- nn->y < -lim || nn->y > lim)
- {
- if (prev)
- prev->next = nn->next;
- else
- vp->nodes = nn->next;
- free (nn);
- vp->nnodes--;
- nn = prev;
- }
-}
-
-
-static void
-zoom_points (voronoi_configuration *vp)
-{
- node *nn;
-
- GLfloat tick = sin (vp->zooming * M_PI);
- GLfloat scale = 1 + (tick * 0.02 * zoom_speed);
-
- vp->zooming -= (0.01 * zoom_speed);
- if (vp->zooming < 0) vp->zooming = 0;
-
- if (vp->zooming <= 0) return;
-
- if (scale < 1) scale = 1;
-
- for (nn = vp->nodes; nn; nn = nn->next)
- {
- GLfloat x = nn->x - vp->zoom_toward[0];
- GLfloat y = nn->y - vp->zoom_toward[1];
- x *= scale;
- y *= scale;
- nn->x = x + vp->zoom_toward[0];
- nn->y = y + vp->zoom_toward[1];
- }
-}
-
-
-
-static void
-draw_cells (ModeInfo *mi)
-{
- voronoi_configuration *vp = &vps[MI_SCREEN(mi)];
- node *nn;
- int lim = 5;
-
- for (nn = vp->nodes; nn; nn = nn->next)
- {
- if (nn->x < -lim || nn->x > lim ||
- nn->y < -lim || nn->y > lim)
- continue;
-
- glPushMatrix();
- glTranslatef (nn->x, nn->y, 0);
- glScalef (lim*2, lim*2, 1);
- glColor4fv (nn->color);
- mi->polygon_count += cone ();
- glPopMatrix();
- }
-
- glClear (GL_DEPTH_BUFFER_BIT);
-
- if (vp->point_size <= 0)
- ;
- else if (vp->point_size < 3)
- {
- glPointSize (vp->point_size);
- for (nn = vp->nodes; nn; nn = nn->next)
- {
- glBegin (GL_POINTS);
- glColor4fv (nn->color2);
- glVertex2f (nn->x, nn->y);
- glEnd();
- mi->polygon_count++;
- }
- }
- else
- {
- for (nn = vp->nodes; nn; nn = nn->next)
- {
- int w = MI_WIDTH (mi);
- int h = MI_HEIGHT (mi);
- int s = vp->point_size;
- int i;
-
- glColor4fv (nn->color2);
- glPushMatrix();
- glTranslatef (nn->x, nn->y, 0);
- glScalef (1.0 / w * s, 1.0 / h * s, 1);
-
- glLineWidth (vp->point_size / 10);
- nn->rot += (nn->rot < 0 ? -1 : 1);
- glRotatef (nn->rot, 0, 0, 1);
-
- glRotatef (180, 0, 0, 1);
- for (i = 0; i < 5; i++)
- {
- glBegin (GL_TRIANGLES);
- glVertex2f (0, 1);
- glVertex2f (-0.2, 0);
- glVertex2f ( 0.2, 0);
- glEnd ();
- glRotatef (360.0/5, 0, 0, 1);
- mi->polygon_count++;
- }
- glPopMatrix();
- }
- }
-
-#if 0
- glPushMatrix();
- glColor3f(1,1,1);
- glBegin(GL_LINE_LOOP);
- glVertex3f(0,0,0);
- glVertex3f(1,0,0);
- glVertex3f(1,1,0);
- glVertex3f(0,1,0);
- glEnd();
- glScalef(0.25, 0.25, 1);
- glBegin(GL_LINE_LOOP);
- glVertex3f(0,0,0);
- glVertex3f(1,0,0);
- glVertex3f(1,1,0);
- glVertex3f(0,1,0);
- glEnd();
- glPopMatrix();
-#endif
-}
-
-
-/* Window management, etc
- */
-ENTRYPOINT void
-reshape_voronoi (ModeInfo *mi, int width, int height)
-{
-/* voronoi_configuration *vp = &vps[MI_SCREEN(mi)];*/
-
- glViewport (0, 0, (GLint) width, (GLint) height);
-
- glMatrixMode(GL_PROJECTION);
- glLoadIdentity();
- glOrtho (0, 1, 1, 0, -1, 1);
-
-# ifdef HAVE_MOBILE /* So much WTF */
- {
- int rot = current_device_rotation();
-
- glTranslatef (0.5, 0.5, 0);
- /* glScalef(0.19, 0.19, 0.19); */
-
- if (rot == 180 || rot == -180) {
- glTranslatef (1, 1, 0);
- } else if (rot == 90 || rot == -270) {
- glRotatef (180, 0, 0, 1);
- glTranslatef (0, 1, 0);
- } else if (rot == -90 || rot == 270) {
- glRotatef (180, 0, 0, 1);
- glTranslatef (1, 0, 0);
- }
-
- glTranslatef(-0.5, -0.5, 0);
- }
-# endif
-
- glMatrixMode(GL_MODELVIEW);
- glLoadIdentity();
-
- glClear(GL_COLOR_BUFFER_BIT);
-}
-
-
-static node *
-find_node (ModeInfo *mi, GLfloat x, GLfloat y)
-{
- voronoi_configuration *vp = &vps[MI_SCREEN(mi)];
- int ps = (vp->point_size < 5 ? 5 : vp->point_size);
- GLfloat hysteresis = (1.0 / MI_WIDTH (mi)) * ps;
- node *nn;
- for (nn = vp->nodes; nn; nn = nn->next)
- if (nn->x > x - hysteresis && nn->x < x + hysteresis &&
- nn->y > y - hysteresis && nn->y < y + hysteresis)
- return nn;
- return 0;
-}
-
-
-ENTRYPOINT Bool
-voronoi_handle_event (ModeInfo *mi, XEvent *event)
-{
- voronoi_configuration *vp = &vps[MI_SCREEN(mi)];
-
- if (event->xany.type == ButtonPress)
- {
- GLfloat x = (GLfloat) event->xbutton.x / MI_WIDTH (mi);
- GLfloat y = (GLfloat) event->xbutton.y / MI_HEIGHT (mi);
- node *nn = find_node (mi, x, y);
- if (!nn)
- nn = add_node (vp, x, y);
- vp->dragging = nn;
-
- return True;
- }
- else if (event->xany.type == ButtonRelease && vp->dragging)
- {
- vp->dragging = 0;
- return True;
- }
- else if (event->xany.type == MotionNotify && vp->dragging)
- {
- vp->dragging->x = (GLfloat) event->xmotion.x / MI_WIDTH (mi);
- vp->dragging->y = (GLfloat) event->xmotion.y / MI_HEIGHT (mi);
- return True;
- }
-
- return False;
-}
-
-static void
-state_change (ModeInfo *mi)
-{
- voronoi_configuration *vp = &vps[MI_SCREEN(mi)];
- double now = double_time();
-
- if (vp->dragging)
- {
- vp->last_time = now;
- vp->adding = 0;
- vp->zooming = 0;
- return;
- }
-
- switch (vp->mode)
- {
- case MODE_WAITING:
- if (vp->last_time + zoom_delay <= now)
- {
- node *tn = vp->nodes;
- vp->zoom_toward[0] = (tn ? tn->x : 0.5);
- vp->zoom_toward[1] = (tn ? tn->y : 0.5);
-
- vp->mode = MODE_ZOOMING;
- vp->zooming = 1;
-
- vp->last_time = now;
- }
- break;
-
- case MODE_ADDING:
- if (vp->last_time + point_delay <= now)
- {
- add_node (vp,
- BELLRAND(0.5) + 0.25,
- BELLRAND(0.5) + 0.25);
- vp->last_time = now;
- vp->adding--;
- if (vp->adding <= 0)
- {
- vp->adding = 0;
- vp->mode = MODE_WAITING;
- vp->last_time = now;
- }
- }
- break;
-
- case MODE_ZOOMING:
- {
- zoom_points (vp);
- if (vp->zooming <= 0)
- {
- vp->mode = MODE_ADDING;
- vp->adding = npoints;
- vp->last_time = now;
- }
- }
- break;
-
- default:
- abort();
- }
-}
-
-
-ENTRYPOINT void
-init_voronoi (ModeInfo *mi)
-{
- voronoi_configuration *vp;
-
- MI_INIT (mi, vps);
-
- vp = &vps[MI_SCREEN(mi)];
-
- vp->glx_context = init_GL(mi);
-
- vp->point_size = point_size;
- if (vp->point_size < 0) vp->point_size = 10;
-
- if (MI_WIDTH(mi) > 2560) vp->point_size *= 2; /* Retina displays */
-
- vp->ncolors = 128;
- vp->colors = (XColor *) calloc (vp->ncolors, sizeof(XColor));
- make_smooth_colormap (0, 0, 0,
- vp->colors, &vp->ncolors,
- False, False, False);
-
- reshape_voronoi (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-
- vp->mode = MODE_ADDING;
- vp->adding = npoints * 2;
- vp->last_time = 0;
-}
-
-
-ENTRYPOINT void
-draw_voronoi (ModeInfo *mi)
-{
- voronoi_configuration *vp = &vps[MI_SCREEN(mi)];
- Display *dpy = MI_DISPLAY(mi);
- Window window = MI_WINDOW(mi);
-
- if (!vp->glx_context)
- return;
-
- glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *vp->glx_context);
-
- glShadeModel(GL_FLAT);
- glEnable(GL_POINT_SMOOTH);
-/* glEnable(GL_LINE_SMOOTH);*/
-/* glEnable(GL_POLYGON_SMOOTH);*/
-
- glEnable (GL_DEPTH_TEST);
- glDepthFunc (GL_LEQUAL);
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- mi->polygon_count = 0;
- draw_cells (mi);
- move_points (vp);
- prune_points (vp);
- state_change (mi);
-
- if (mi->fps_p) do_fps (mi);
- glFinish();
-
- glXSwapBuffers(dpy, window);
-}
-
-
-ENTRYPOINT void
-free_voronoi (ModeInfo *mi)
-{
- voronoi_configuration *vp = &vps[MI_SCREEN(mi)];
- node *n;
- if (!vp->glx_context) return;
- glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *vp->glx_context);
- if (vp->colors) free (vp->colors);
- n = vp->nodes;
- while (n) {
- node *n2 = n->next;
- free (n);
- n = n2;
- }
-}
-
-XSCREENSAVER_MODULE ("Voronoi", voronoi)
-
-#endif /* USE_GL */
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