-/* cubestorm, Copyright (c) 2003, 2004 Jamie Zawinski <jwz@jwz.org>
+/* 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
* implied warranty.
*/
-#include <X11/Intrinsic.h>
-
-extern XtAppContext app;
-
-#define PROGCLASS "CubeStorm"
-#define HACK_INIT init_cube
-#define HACK_DRAW draw_cube
-#define HACK_RESHAPE reshape_cube
-#define HACK_HANDLE_EVENT cube_handle_event
-#define EVENT_MASK PointerMotionMask
-#define sws_opts xlockmore_opts
-
-#define DEF_SPIN "True"
-#define DEF_WANDER "True"
-#define DEF_SPEED "1.0"
-#define DEF_THICKNESS "0.06"
-#define DEF_COUNT "4"
-
#define DEFAULTS "*delay: 30000 \n" \
"*count: " DEF_COUNT "\n" \
"*showFPS: False \n" \
"*fpsSolid: True \n" \
"*wireframe: False \n" \
+ "*suppressRotationAnimation: True\n" \
+# define free_cube 0
+# define release_cube 0
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
#ifdef USE_GL /* whole file */
-#include <GL/glu.h>
+#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;
subcube *subcubes;
+ int hist_size, hist_count;
+ histcube *hist;
+
} cube_configuration;
static cube_configuration *bps = NULL;
static Bool do_wander;
static GLfloat speed;
static GLfloat thickness;
+static int max_length;
static XrmOptionDescRec opts[] = {
{ "-spin", ".spin", XrmoptionNoArg, "True" },
{ "-wander", ".wander", XrmoptionNoArg, "True" },
{ "+wander", ".wander", XrmoptionNoArg, "False" },
{ "-speed", ".speed", XrmoptionSepArg, 0 },
- { "-thickness", ".thickness", 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},
+ {&thickness, "thickness", "Thickness", DEF_THICKNESS, t_Float},
+ {&max_length, "length", "Length", DEF_LENGTH, t_Int},
};
-ModeSpecOpt sws_opts = {countof(opts), opts, countof(vars), vars, NULL};
+ENTRYPOINT ModeSpecOpt cube_opts = {countof(opts), opts, countof(vars), vars, NULL};
static void
/* Window management, etc
*/
-void
+ENTRYPOINT void
reshape_cube (ModeInfo *mi, int width, int height)
{
GLfloat h = (GLfloat) height / (GLfloat) width;
+ int y = 0;
- glViewport (0, 0, (GLint) width, (GLint) height);
+ 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();
0.0, 0.0, 0.0,
0.0, 1.0, 0.0);
+# ifdef HAVE_MOBILE /* Keep it the same relative size when rotated. */
+ {
+ int o = (int) current_device_rotation();
+ if (o != 0 && o != 180 && o != -180)
+ glScalef (1/h, 1/h, 1/h);
+ }
+# endif
+
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
}
-Bool
+ENTRYPOINT Bool
cube_handle_event (ModeInfo *mi, XEvent *event)
{
cube_configuration *bp = &bps[MI_SCREEN(mi)];
- if (event->xany.type == ButtonPress &&
- event->xbutton.button == Button1)
- {
- bp->button_down_p = True;
- gltrackball_start (bp->trackball,
- event->xbutton.x, event->xbutton.y,
- MI_WIDTH (mi), MI_HEIGHT (mi));
- return True;
- }
- else if (event->xany.type == ButtonRelease &&
- 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))
- {
- gltrackball_mousewheel (bp->trackball, event->xbutton.button, 10,
- !!event->xbutton.state);
- return True;
- }
- else if (event->xany.type == MotionNotify &&
- bp->button_down_p)
- {
- gltrackball_track (bp->trackball,
- event->xmotion.x, event->xmotion.y,
- MI_WIDTH (mi), MI_HEIGHT (mi));
- return True;
- }
+ 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;
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
return True;
}
- else if (c == '\r' || c == '\n')
- {
- new_cube_colors (mi);
- 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;
}
-void
+ENTRYPOINT void
init_cube (ModeInfo *mi)
{
cube_configuration *bp;
int wire = MI_IS_WIREFRAME(mi);
int i;
- if (!bps) {
- bps = (cube_configuration *)
- calloc (MI_NUM_SCREENS(mi), sizeof (cube_configuration));
- if (!bps) {
- fprintf(stderr, "%s: out of memory\n", progname);
- exit(1);
- }
-
- bp = &bps[MI_SCREEN(mi)];
- }
+ MI_INIT (mi, bps);
bp = &bps[MI_SCREEN(mi)];
if (MI_COUNT(mi) <= 0) MI_COUNT(mi) = 1;
- bp->trackball = gltrackball_init ();
+ 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;
}
-void
+/* 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)];
Window window = MI_WINDOW(mi);
int wire = MI_IS_WIREFRAME(mi);
int i;
- double x, y, z;
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);
if (bp->clear_p) /* we're in "no vapor trails" mode */
{
- glClear(GL_DEPTH_BUFFER_BIT|GL_COLOR_BUFFER_BIT);
+ bp->hist_count = 0;
if (! (random() % (int) (25 / speed)))
bp->clear_p = False;
}
}
}
- glPushMatrix ();
-
- glScalef(1.1, 1.1, 1.1);
-
+ push_hist (mi);
mi->polygon_count = 0;
-
- get_position (bp->subcubes[0].rot, &x, &y, &z, !bp->button_down_p);
- glTranslatef((x - 0.5) * 15,
- (y - 0.5) * 15,
- (z - 0.5) * 30);
- gltrackball_rotate (bp->trackball);
-
- glScalef (4.0, 4.0, 4.0);
-
- for (i = 0; i < MI_COUNT(mi); i++)
+ for (i = 0; i < bp->hist_count; i++)
{
- 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;
+ 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);
- if (i != 0) /* N+1 cubes rotate relative to cube 0 */
- {
- get_rotation (bp->subcubes[0].rot, &x, &y, &z, False);
- 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);
- }
+ 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);
- get_rotation (bp->subcubes[i].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);
+ 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[bp->subcubes[i].ccolor].red / 65536.0;
- bcolor[1] = bp->colors[bp->subcubes[i].ccolor].green / 65536.0;
- bcolor[2] = bp->colors[bp->subcubes[i].ccolor].blue / 65536.0;
- bp->subcubes[i].ccolor++;
- if (bp->subcubes[i].ccolor >= bp->ncolors)
- bp->subcubes[i].ccolor = 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]);
glPopMatrix();
}
- glPopMatrix ();
-
if (mi->fps_p) do_fps (mi);
glFinish();
glXSwapBuffers(dpy, window);
}
+XSCREENSAVER_MODULE_2 ("CubeStorm", cubestorm, cube)
+
#endif /* USE_GL */
projects / xscreensaver / blobdiff