diff options
Diffstat (limited to 'hacks/glx/cubestorm.c')
| -rw-r--r-- | hacks/glx/cubestorm.c | 484 |
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 */ |