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authorSimon Rettberg2024-09-06 14:42:37 +0200
committerSimon Rettberg2024-09-06 14:42:37 +0200
commitbadef32037f52f79abc1f1440b786cd71afdf270 (patch)
tree412b792d4cab4a7a110db82fcf74fe8a1ac55ec1 /hacks/glx/cubestorm.c
parentDelete pre-6.00 files (diff)
downloadxscreensaver-master.tar.gz
xscreensaver-master.tar.xz
xscreensaver-master.zip
Diffstat (limited to 'hacks/glx/cubestorm.c')
-rw-r--r--hacks/glx/cubestorm.c484
1 files changed, 0 insertions, 484 deletions
diff --git a/hacks/glx/cubestorm.c b/hacks/glx/cubestorm.c
deleted file mode 100644
index 681a17a..0000000
--- a/hacks/glx/cubestorm.c
+++ /dev/null
@@ -1,484 +0,0 @@
-/* cubestorm, Copyright (c) 2003-2018 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: 30000 \n" \
- "*count: " DEF_COUNT "\n" \
- "*showFPS: False \n" \
- "*fpsSolid: True \n" \
- "*wireframe: False \n" \
- "*suppressRotationAnimation: True\n" \
-
-
-# define release_cube 0
-
-#include "xlockmore.h"
-#include "colors.h"
-#include "rotator.h"
-#include "gltrackball.h"
-#include <ctype.h>
-
-#ifdef USE_GL /* whole file */
-
-#define DEF_SPIN "True"
-#define DEF_WANDER "True"
-#define DEF_SPEED "1.0"
-#define DEF_THICKNESS "0.06"
-#define DEF_COUNT "4"
-#define DEF_LENGTH "200"
-
-typedef struct {
- GLfloat px, py, pz;
- GLfloat rx, ry, rz;
- int ccolor;
-} histcube;
-
-typedef struct {
- rotator *rot;
- int ccolor;
-} subcube;
-
-typedef struct {
- GLXContext *glx_context;
- trackball_state *trackball;
- Bool button_down_p;
- Bool clear_p;
-
- GLuint cube_list;
-
- int ncolors;
- XColor *colors;
-
- subcube *subcubes;
-
- int hist_size, hist_count;
- histcube *hist;
-
-} cube_configuration;
-
-static cube_configuration *bps = NULL;
-
-static Bool do_spin;
-static Bool do_wander;
-static GLfloat speed;
-static GLfloat thickness;
-static int max_length;
-
-static XrmOptionDescRec opts[] = {
- { "-spin", ".spin", XrmoptionNoArg, "True" },
- { "+spin", ".spin", XrmoptionNoArg, "False" },
- { "-wander", ".wander", XrmoptionNoArg, "True" },
- { "+wander", ".wander", XrmoptionNoArg, "False" },
- { "-speed", ".speed", XrmoptionSepArg, 0 },
- { "-db", ".doubleBuffer", XrmoptionNoArg, "True"},
- { "+db", ".doubleBuffer", XrmoptionNoArg, "False"},
- { "-thickness", ".thickness", XrmoptionSepArg, 0 },
- { "-length", ".length", XrmoptionSepArg, 0 },
-};
-
-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},
- {&thickness, "thickness", "Thickness", DEF_THICKNESS, t_Float},
- {&max_length, "length", "Length", DEF_LENGTH, t_Int},
-};
-
-ENTRYPOINT ModeSpecOpt cube_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-
-static void
-draw_face (ModeInfo *mi)
-{
- int wire = MI_IS_WIREFRAME(mi);
-
- int i;
- GLfloat t = thickness / 2;
- GLfloat a = -0.5;
- GLfloat b = 0.5;
-
- if (t <= 0) t = 0.001;
- else if (t > 0.5) t = 0.5;
-
- glPushMatrix();
- glFrontFace(GL_CW);
-
- for (i = 0; i < 4; i++)
- {
- glNormal3f (0, 0, -1);
- glBegin (wire ? GL_LINE_LOOP : GL_QUADS);
- glVertex3f (a, a, a);
- glVertex3f (b, a, a);
- glVertex3f (b-t, a+t, a);
- glVertex3f (a+t, a+t, a);
- glEnd();
-
- glNormal3f (0, 1, 0);
- glBegin (wire ? GL_LINE_LOOP : GL_QUADS);
- glVertex3f (b-t, a+t, a);
- glVertex3f (b-t, a+t, a+t);
- glVertex3f (a+t, a+t, a+t);
- glVertex3f (a+t, a+t, a);
- glEnd();
-
- glRotatef(90, 0, 0, 1);
- }
- glPopMatrix();
-}
-
-static void
-draw_faces (ModeInfo *mi)
-{
- glPushMatrix();
- draw_face (mi);
- glRotatef (90, 0, 1, 0); draw_face (mi);
- glRotatef (90, 0, 1, 0); draw_face (mi);
- glRotatef (90, 0, 1, 0); draw_face (mi);
- glRotatef (90, 1, 0, 0); draw_face (mi);
- glRotatef (180, 1, 0, 0); draw_face (mi);
- glPopMatrix();
-}
-
-
-static void
-new_cube_colors (ModeInfo *mi)
-{
- cube_configuration *bp = &bps[MI_SCREEN(mi)];
- int i;
- bp->ncolors = 128;
- if (bp->colors) free (bp->colors);
- bp->colors = (XColor *) calloc(bp->ncolors, sizeof(XColor));
- make_smooth_colormap (0, 0, 0,
- bp->colors, &bp->ncolors,
- False, 0, False);
- for (i = 0; i < MI_COUNT(mi); i++)
- bp->subcubes[i].ccolor = random() % bp->ncolors;
-}
-
-
-/* Window management, etc
- */
-ENTRYPOINT void
-reshape_cube (ModeInfo *mi, int width, int height)
-{
- GLfloat h = (GLfloat) height / (GLfloat) width;
- int y = 0;
-
- if (width > height * 5) { /* tiny window: show middle */
- height = width * 9/16;
- y = -height/2;
- h = height / (GLfloat) width;
- }
-
- glViewport (0, y, (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, 45.0,
- 0.0, 0.0, 0.0,
- 0.0, 1.0, 0.0);
-
- {
- GLfloat s = (MI_WIDTH(mi) < MI_HEIGHT(mi)
- ? (MI_WIDTH(mi) / (GLfloat) MI_HEIGHT(mi))
- : 1);
- glScalef (s, s, s);
- }
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-
-ENTRYPOINT Bool
-cube_handle_event (ModeInfo *mi, XEvent *event)
-{
- cube_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 (c == ' ')
- {
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
- return True;
- }
- else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
- goto DEF;
- }
- else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event))
- {
- DEF:
- new_cube_colors (mi);
- return True;
- }
- return False;
-}
-
-
-ENTRYPOINT void
-init_cube (ModeInfo *mi)
-{
- cube_configuration *bp;
- int wire = MI_IS_WIREFRAME(mi);
- int i;
-
- MI_INIT (mi, bps);
-
- bp = &bps[MI_SCREEN(mi)];
-
- bp->glx_context = init_GL(mi);
-
- if (MI_COUNT(mi) <= 0) MI_COUNT(mi) = 1;
-
- bp->trackball = gltrackball_init (True);
- bp->subcubes = (subcube *) calloc (MI_COUNT(mi), sizeof(subcube));
-
- bp->hist_count = 0;
- bp->hist_size = 100;
- bp->hist = (histcube *) malloc (bp->hist_size * sizeof(*bp->hist));
-
- for (i = 0; i < MI_COUNT(mi); i++)
- {
- double wander_speed, spin_speed, spin_accel;
-
- if (i == 0)
- {
- wander_speed = 0.05 * speed;
- spin_speed = 10.0 * speed;
- spin_accel = 4.0 * speed;
- }
- else
- {
- wander_speed = 0;
- spin_speed = 4.0 * speed;
- spin_accel = 2.0 * speed;
- }
-
- bp->subcubes[i].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,
- True);
- }
-
- bp->colors = 0;
- new_cube_colors (mi);
-
- reshape_cube (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-
- 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);
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_CULL_FACE);
-
- glLightfv(GL_LIGHT0, GL_POSITION, pos);
- glLightfv(GL_LIGHT0, GL_AMBIENT, amb);
- glLightfv(GL_LIGHT0, GL_DIFFUSE, dif);
- glLightfv(GL_LIGHT0, GL_SPECULAR, spc);
- }
-
- bp->cube_list = glGenLists (1);
- glNewList (bp->cube_list, GL_COMPILE);
- draw_faces (mi);
- glEndList ();
-
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-}
-
-
-/* Originally, this program achieved the "accumulating cubes" effect by
- simply not clearing the depth or color buffers between frames. That
- doesn't work on modern systems, particularly mobile: you can no longer
- rely on your buffers being unmolested once you have yielded. So now we
- must save and re-render every polygon. Noof has the same problem and
- solves it by taking a screenshot of the frame buffer into a texture, but
- cubestorm needs to restore the depth buffer as well as the color buffer.
- */
-static void
-push_hist (ModeInfo *mi)
-{
- cube_configuration *bp = &bps[MI_SCREEN(mi)];
- double px, py, pz;
- double rx = 0, ry = 0, rz = 0;
- int i;
-
- if (bp->hist_count > max_length &&
- bp->hist_count > MI_COUNT(mi) &&
- !bp->button_down_p)
- {
- /* Drop history off of the end. */
- memmove (bp->hist,
- bp->hist + MI_COUNT(mi),
- (bp->hist_count - MI_COUNT(mi)) * sizeof(*bp->hist));
- bp->hist_count -= MI_COUNT(mi);
- }
-
- if (bp->hist_count + MI_COUNT(mi) >= bp->hist_size)
- {
- bp->hist_size = bp->hist_count + MI_COUNT(mi) + 100;
- bp->hist = (histcube *)
- realloc (bp->hist, bp->hist_size * sizeof(*bp->hist));
- }
-
- get_position (bp->subcubes[0].rot, &px, &py, &pz, !bp->button_down_p);
-
- for (i = 0; i < MI_COUNT(mi); i++)
- {
- subcube *sc = &bp->subcubes[i];
- histcube *hc = &bp->hist[bp->hist_count];
- double rx2, ry2, rz2;
-
- get_rotation (sc->rot, &rx2, &ry2, &rz2, !bp->button_down_p);
-
- if (i == 0) /* N+1 cubes rotate relative to cube 0 */
- rx = rx2, ry = ry2, rz = rz2;
- else
- rx2 += rx, ry2 += ry, rz2 += rz;
-
- hc->px = px;
- hc->py = py;
- hc->pz = pz;
- hc->rx = rx2;
- hc->ry = ry2;
- hc->rz = rz2;
- hc->ccolor = sc->ccolor;
- sc->ccolor++;
- if (sc->ccolor >= bp->ncolors)
- sc->ccolor = 0;
- bp->hist_count++;
- }
-}
-
-
-ENTRYPOINT void
-draw_cube (ModeInfo *mi)
-{
- cube_configuration *bp = &bps[MI_SCREEN(mi)];
- Display *dpy = MI_DISPLAY(mi);
- Window window = MI_WINDOW(mi);
- int wire = MI_IS_WIREFRAME(mi);
- int i;
-
- if (!bp->glx_context)
- return;
-
- glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glShadeModel(GL_SMOOTH);
-
- glEnable(GL_DEPTH_TEST);
- glEnable(GL_NORMALIZE);
- glEnable(GL_CULL_FACE);
-
- if (bp->clear_p) /* we're in "no vapor trails" mode */
- {
- bp->hist_count = 0;
- if (! (random() % (int) (25 / speed)))
- bp->clear_p = False;
- }
- else
- {
- if (! (random() % (int) (200 / speed)))
- {
- bp->clear_p = True;
- new_cube_colors (mi);
- }
- }
-
- push_hist (mi);
- mi->polygon_count = 0;
- for (i = 0; i < bp->hist_count; i++)
- {
- 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;
-
- histcube *hc = &bp->hist[i];
-
- glPushMatrix();
- glScalef (1.1, 1.1, 1.1);
-
- glTranslatef((hc->px - 0.5) * 15,
- (hc->py - 0.5) * 15,
- (hc->pz - 0.5) * 30);
- gltrackball_rotate (bp->trackball);
-
- glScalef (4.0, 4.0, 4.0);
-
- glRotatef (hc->rx * 360, 1.0, 0.0, 0.0);
- glRotatef (hc->ry * 360, 0.0, 1.0, 0.0);
- glRotatef (hc->rz * 360, 0.0, 0.0, 1.0);
-
- bcolor[0] = bp->colors[hc->ccolor].red / 65536.0;
- bcolor[1] = bp->colors[hc->ccolor].green / 65536.0;
- bcolor[2] = bp->colors[hc->ccolor].blue / 65536.0;
-
- if (wire)
- glColor3f (bcolor[0], bcolor[1], bcolor[2]);
- else
- {
- glMaterialfv (GL_FRONT, GL_SPECULAR, bspec);
- glMateriali (GL_FRONT, GL_SHININESS, bshiny);
- glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, bcolor);
- }
-
- glCallList (bp->cube_list);
- mi->polygon_count += (4 * 2 * 6);
-
- glPopMatrix();
- }
-
- if (mi->fps_p) do_fps (mi);
- glFinish();
-
- glXSwapBuffers(dpy, window);
-}
-
-
-ENTRYPOINT void
-free_cube (ModeInfo *mi)
-{
- cube_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->subcubes) {
- for (i = 0; i < MI_COUNT(mi); i++)
- free_rotator (bp->subcubes[i].rot);
- free (bp->subcubes);
- }
- if (bp->hist) free (bp->hist);
- if (bp->trackball) gltrackball_free (bp->trackball);
- if (bp->colors) free (bp->colors);
-
-}
-
-XSCREENSAVER_MODULE_2 ("CubeStorm", cubestorm, cube)
-
-#endif /* USE_GL */