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Diffstat (limited to 'hacks/glx/tronbit.c')
| -rw-r--r-- | hacks/glx/tronbit.c | 547 |
1 files changed, 0 insertions, 547 deletions
diff --git a/hacks/glx/tronbit.c b/hacks/glx/tronbit.c deleted file mode 100644 index 966ccf0..0000000 --- a/hacks/glx/tronbit.c +++ /dev/null @@ -1,547 +0,0 @@ -/* tronbit, Copyright (c) 2011-2014 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: 30000 \n" \ - "*count: 30 \n" \ - "*showFPS: False \n" \ - "*wireframe: False \n" - -# define release_bit 0 - -#include "xlockmore.h" -#include "colors.h" -#include "sphere.h" -#include "rotator.h" -#include "gltrackball.h" -#include <ctype.h> - -#ifdef USE_GL /* whole file */ - -#include "gllist.h" - -extern const struct gllist *tronbit_idle1, *tronbit_idle2, - *tronbit_no, *tronbit_yes; -static const struct gllist * const *all_objs[] = { - &tronbit_idle1, &tronbit_idle2, &tronbit_no, &tronbit_yes }; - - -#define DEF_SPIN "True" -#define DEF_WANDER "True" -#define DEF_SPEED "1.0" - -#define HISTORY_LENGTH 512 -typedef enum { BIT_IDLE1, BIT_IDLE2, BIT_NO, BIT_YES } bit_state; -#define MODELS 4 - - -typedef struct { - GLXContext *glx_context; - rotator *rot; - trackball_state *trackball; - Bool button_down_p; - - double frequency; - double confidence; - - double last_time; - unsigned char history [HISTORY_LENGTH]; - unsigned char histogram [HISTORY_LENGTH]; - int history_fp, histogram_fp; - - GLuint dlists[MODELS], polys[MODELS]; - char kbd; - -} bit_configuration; - -static bit_configuration *bps = NULL; - -static const GLfloat colors[][4] = { - { 0.66, 0.85, 1.00, 1.00 }, - { 0.66, 0.85, 1.00, 1.00 }, - { 1.00, 0.12, 0.12, 1.00 }, - { 0.98, 0.85, 0.30, 1.00 } -}; - - -static Bool do_spin; -static GLfloat speed; -static Bool do_wander; - -static XrmOptionDescRec opts[] = { - { "-spin", ".spin", XrmoptionNoArg, "True" }, - { "+spin", ".spin", XrmoptionNoArg, "False" }, - { "-speed", ".speed", XrmoptionSepArg, 0 }, - { "-wander", ".wander", XrmoptionNoArg, "True" }, - { "+wander", ".wander", XrmoptionNoArg, "False" } -}; - -static argtype vars[] = { - {&do_spin, "spin", "Spin", DEF_SPIN, t_Bool}, - {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool}, - {&speed, "speed", "Speed", DEF_SPEED, t_Float}, -}; - -ENTRYPOINT ModeSpecOpt bit_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 int -make_bit (ModeInfo *mi, bit_state which) -{ - static const GLfloat spec[4] = {1.0, 1.0, 1.0, 1.0}; - static const GLfloat shiny = 128.0; - const GLfloat *color = colors[which]; - int wire = MI_IS_WIREFRAME(mi); - int polys = 0; - GLfloat s; - const struct gllist *gll; - - glMaterialfv (GL_FRONT, GL_SPECULAR, spec); - glMateriali (GL_FRONT, GL_SHININESS, shiny); - glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, color); - glColor4f (color[0], color[1], color[2], color[3]); - - glPushMatrix(); - switch (which) - { - case BIT_IDLE1: - glRotatef (-44, 0, 1, 0); /* line up the models with each other */ - glRotatef (-11, 1, 0, 0); - glRotatef ( 8, 0, 0, 1); - s = 1.0; - break; - case BIT_IDLE2: - glRotatef ( 16.0, 0, 0, 1); - glRotatef (-28.0, 1, 0, 0); - s = 1.0; - break; - case BIT_NO: - glRotatef ( 16.0, 0, 0, 1); - glRotatef (-28.0, 1, 0, 0); - s = 1.6; - break; - case BIT_YES: - glRotatef (-44.0, 0, 1, 0); - glRotatef (-32.0, 1, 0, 0); - s = 1.53; - break; - default: - abort(); - break; - } - glScalef (s, s, s); - gll = *all_objs[which]; - renderList (gll, wire); - polys += gll->points / 3; - glPopMatrix(); - - return polys; -} - - -static void -tick_bit (ModeInfo *mi, double now) -{ - bit_configuration *bp = &bps[MI_SCREEN(mi)]; - double freq = bp->frequency; - int n = bp->history[bp->history_fp]; - int histogram_speed = 3 * speed; - int i; - - if (histogram_speed < 1) histogram_speed = 1; - - if (n == BIT_YES || n == BIT_NO) - freq *= 2; - - if (bp->button_down_p) return; - - for (i = 0; i < histogram_speed; i++) - { - int nn = (n == BIT_YES ? 240 : n == BIT_NO ? 17 : 128); - int on = bp->histogram[(bp->histogram_fp-1) % countof(bp->histogram)]; - - /* smooth out the square wave a little bit */ - - if (!(nn > 100 && nn < 200) != - !(on > 100 && on < 200)) - nn += (((random() % 48) - 32) * - ((on > 100 && on < 200) ? 1 : -1)); - - nn += (random() % 16) - 8; - - bp->histogram_fp++; - if (bp->histogram_fp >= countof(bp->history)) - bp->histogram_fp = 0; - bp->histogram [bp->histogram_fp] = nn; - } - - - if (bp->last_time + freq > now && !bp->kbd) return; - - bp->last_time = now; - - bp->history_fp++; - if (bp->history_fp >= countof(bp->history)) - bp->history_fp = 0; - - if (bp->kbd) - { - n = (bp->kbd == '1' ? BIT_YES : - bp->kbd == '0' ? BIT_NO : - (random() & 1) ? BIT_YES : BIT_NO); - bp->kbd = 0; - } - else if (n == BIT_YES || - n == BIT_NO || - frand(1.0) >= bp->confidence) - n = (n == BIT_IDLE1 ? BIT_IDLE2 : BIT_IDLE1); - else - n = (random() & 1) ? BIT_YES : BIT_NO; - - bp->history [bp->history_fp] = n; -} - - -static int -animate_bits (ModeInfo *mi, bit_state omodel, bit_state nmodel, GLfloat ratio) -{ - bit_configuration *bp = &bps[MI_SCREEN(mi)]; - int polys = 0; - GLfloat scale = sin (ratio * M_PI / 2); - GLfloat osize, nsize, small; - int wire = MI_IS_WIREFRAME(mi); - - glShadeModel(GL_SMOOTH); - - glEnable(GL_DEPTH_TEST); - glEnable(GL_NORMALIZE); - glEnable(GL_CULL_FACE); - - if (!wire) - { - glEnable(GL_LIGHTING); - glEnable(GL_DEPTH_TEST); - glEnable(GL_CULL_FACE); - } - - if ((omodel == BIT_IDLE1 || omodel == BIT_IDLE2) && - (nmodel == BIT_IDLE1 || nmodel == BIT_IDLE2)) - small = 0.9; - else - small = 0.5; - - nsize = small + (1 - small) * scale; - osize = small + (1 - small) * (1 - scale); - - glPushMatrix(); - glScalef (osize, osize, osize); - glCallList (bp->dlists [omodel]); - polys += bp->polys [omodel]; - glPopMatrix(); - - glPushMatrix(); - glScalef (nsize, nsize, nsize); - glCallList (bp->dlists [nmodel]); - polys += bp->polys [nmodel]; - glPopMatrix(); - - return polys; -} - - -static int -draw_histogram (ModeInfo *mi, GLfloat ratio) -{ - bit_configuration *bp = &bps[MI_SCREEN(mi)]; - int samples = countof (bp->histogram); - GLfloat scalex = (GLfloat) mi->xgwa.width / samples; - GLfloat scaley = mi->xgwa.height / 255.0 / 4; /* about 1/4th of screen */ - int polys = 0; - int overlays = 5; - int k; - - glDisable (GL_TEXTURE_2D); - glDisable (GL_LIGHTING); - glDisable (GL_BLEND); - glDisable (GL_DEPTH_TEST); - glDisable (GL_CULL_FACE); - - glMatrixMode(GL_PROJECTION); - glPushMatrix(); - { - glLoadIdentity(); - glMatrixMode(GL_MODELVIEW); - glPushMatrix(); - - glLoadIdentity(); - /* glRotatef(current_device_rotation(), 0, 0, 1); */ - glOrtho (0, mi->xgwa.width, 0, mi->xgwa.height, -1, 1); - - for (k = 0; k < overlays; k++) - { - int i, j; - GLfloat a = (GLfloat) k / overlays; - - glColor3f (0.3 * a, 0.7 * a, 1.0 * a); - - glBegin (GL_LINE_STRIP); - - j = bp->histogram_fp + 1; - for (i = 0; i < samples; i++) - { - GLfloat x, y, z; - if (j >= samples) j = 0; - x = i; - y = bp->histogram[j]; - z = 0; - - y += (int) ((random() % 16) - 8); - y += 16; /* margin at bottom of screen */ - - x *= scalex; - y *= scaley; - - glVertex3f (x, y, z); - ++j; - polys++; - } - glEnd(); - } - - glPopMatrix(); - } - glMatrixMode(GL_PROJECTION); - glPopMatrix(); - - glMatrixMode(GL_MODELVIEW); - - return polys; -} - - -/* Window management, etc - */ -ENTRYPOINT void -reshape_bit (ModeInfo *mi, int width, int height) -{ - GLfloat h = (GLfloat) height / (GLfloat) width; - - glViewport (0, 0, (GLint) width, (GLint) height); - - glMatrixMode(GL_PROJECTION); - glLoadIdentity(); - gluPerspective (30.0, 1/h, 1.0, 100.0); - - glMatrixMode(GL_MODELVIEW); - glLoadIdentity(); - gluLookAt( 0.0, 0.0, 30.0, - 0.0, 0.0, 0.0, - 0.0, 1.0, 0.0); - - glClear(GL_COLOR_BUFFER_BIT); -} - - - -ENTRYPOINT Bool -bit_handle_event (ModeInfo *mi, XEvent *event) -{ - bit_configuration *bp = &bps[MI_SCREEN(mi)]; - - if (gltrackball_event_handler (event, bp->trackball, - MI_WIDTH (mi), MI_HEIGHT (mi), - &bp->button_down_p)) - return True; - else if (event->xany.type == KeyPress) - { - KeySym keysym; - char c = 0; - XLookupString (&event->xkey, &c, 1, &keysym, 0); - - if (keysym == XK_Up || keysym == XK_Left || keysym == XK_Prior) - c = '1'; - else if (keysym == XK_Down || keysym == XK_Right || keysym == XK_Next) - c = '0'; - - if (c == ' ' || c == '\t' || c == '\n' || c == '1' || c == '0') - { - bp->kbd = c; - return True; - } - } - - return False; -} - - -ENTRYPOINT void -init_bit (ModeInfo *mi) -{ - bit_configuration *bp; - int i; - - MI_INIT (mi, bps); - - bp = &bps[MI_SCREEN(mi)]; - - bp->glx_context = init_GL(mi); - - reshape_bit (mi, MI_WIDTH(mi), MI_HEIGHT(mi)); - - { - double spin_speed = 3.0; - double wander_speed = 0.03 * speed; - double spin_accel = 4.0; - - bp->rot = make_rotator (do_spin ? spin_speed : 0, - do_spin ? spin_speed : 0, - do_spin ? spin_speed : 0, - spin_accel, - do_wander ? wander_speed : 0, - False); - bp->trackball = gltrackball_init (False); - } - - for (i = 0; i < countof(bp->dlists); i++) - { - bp->dlists[i] = glGenLists (1); - glNewList (bp->dlists[i], GL_COMPILE); - bp->polys [i] = make_bit (mi, i); - glEndList (); - } - - bp->frequency = 0.30 / speed; /* parity around 3x/second */ - bp->confidence = 0.06; /* provide answer 1/15 or so */ - - for (i = 0; i < countof(bp->histogram); i++) - bp->histogram[i] = 128 + (random() % 16) - 8; -} - - -ENTRYPOINT void -draw_bit (ModeInfo *mi) -{ - bit_configuration *bp = &bps[MI_SCREEN(mi)]; - Display *dpy = MI_DISPLAY(mi); - Window window = MI_WINDOW(mi); - int wire = MI_IS_WIREFRAME(mi); - - if (!bp->glx_context) - return; - - glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context); - - glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); - - if (!wire) - { - GLfloat pos[4] = {1.0, 1.0, 1.0, 0.0}; - GLfloat amb[4] = {0.0, 0.0, 0.0, 1.0}; - GLfloat dif[4] = {1.0, 1.0, 1.0, 1.0}; - GLfloat spc[4] = {0.0, 1.0, 1.0, 1.0}; - - glEnable(GL_LIGHTING); - glEnable(GL_LIGHT0); - glLightfv(GL_LIGHT0, GL_POSITION, pos); - glLightfv(GL_LIGHT0, GL_AMBIENT, amb); - glLightfv(GL_LIGHT0, GL_DIFFUSE, dif); - glLightfv(GL_LIGHT0, GL_SPECULAR, spc); - } - - glPushMatrix (); - glScalef(1.1, 1.1, 1.1); - - { - GLfloat s = (MI_WIDTH(mi) < MI_HEIGHT(mi) - ? (MI_WIDTH(mi) / (GLfloat) MI_HEIGHT(mi)) - : 1); - glScalef (s, s, s); - } - - { - double x, y, z; - get_position (bp->rot, &x, &y, &z, !bp->button_down_p); - glTranslatef((x - 0.5) * 11, - (y - 0.5) * 5, - (z - 0.5) * 3); - gltrackball_rotate (bp->trackball); - - get_rotation (bp->rot, &x, &y, &z, !bp->button_down_p); - glRotatef (x * 360, 1.0, 0.0, 0.0); - glRotatef (y * 360, 0.0, 1.0, 0.0); - glRotatef (z * 360, 0.0, 0.0, 1.0); - } - - mi->polygon_count = 0; - - glScalef (6, 6, 6); - - { - int nmodel = bp->history [bp->history_fp]; - int omodel = bp->history [bp->history_fp > 0 - ? bp->history_fp-1 - : countof(bp->history)-1]; - double now = double_time(); - double ratio = 1 - ((bp->last_time + bp->frequency) - now) / bp->frequency; - if (ratio > 1) ratio = 1; - mi->polygon_count += draw_histogram (mi, ratio); - - if (MI_WIDTH(mi) > MI_HEIGHT(mi) * 5) { /* wide window: scale up */ - glScalef (8, 8, 8); - } - - mi->polygon_count += animate_bits (mi, omodel, nmodel, ratio); - tick_bit (mi, now); - } - glPopMatrix (); - - if (mi->fps_p) do_fps (mi); - glFinish(); - - glXSwapBuffers(dpy, window); -} - - -ENTRYPOINT void -free_bit (ModeInfo *mi) -{ - bit_configuration *bp = &bps[MI_SCREEN(mi)]; - int i; - - if (!bp->glx_context) return; - glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context); - - if (bp->trackball) gltrackball_free (bp->trackball); - if (bp->rot) free_rotator (bp->rot); - for (i = 0; i < countof(bp->dlists); i++) - if (glIsList(bp->dlists[i])) glDeleteLists(bp->dlists[i], 1); - -} - -XSCREENSAVER_MODULE_2 ("TronBit", tronbit, bit) - -#endif /* USE_GL */ |