-/* gltext, Copyright (c) 2001 Jamie Zawinski <jwz@jwz.org>
+/* gltext, Copyright (c) 2001-2014 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
* implied warranty.
*/
-#include <X11/Intrinsic.h>
-
-extern XtAppContext app;
-
-#define PROGCLASS "GLText"
-#define HACK_INIT init_text
-#define HACK_DRAW draw_text
-#define HACK_RESHAPE reshape_text
-#define sws_opts xlockmore_opts
-
-#define DEF_TEXT "(default)"
-#define DEF_SPIN "XYZ"
-#define DEF_WANDER "True"
-
-#define DEFAULTS "*delay: 10000 \n" \
- "*showFPS: False \n" \
- "*wireframe: False \n" \
- "*spin: " DEF_SPIN "\n" \
- "*wander: " DEF_WANDER "\n" \
- "*text: " DEF_TEXT "\n"
-
+#define DEFAULTS "*delay: 20000 \n" \
+ "*showFPS: False \n" \
+ "*wireframe: False \n" \
+ "*usePty: False \n" \
+# define refresh_text 0
+# define release_text 0
#define SMOOTH_TUBE /* whether to have smooth or faceted tubes */
#ifdef SMOOTH_TUBE
#include "xlockmore.h"
#include "colors.h"
#include "tube.h"
+#include "sphere.h"
+#include "rotator.h"
+#include "gltrackball.h"
+#include "textclient.h"
+#include "utf8wc.h"
+
#include <ctype.h>
#ifdef USE_GL /* whole file */
+#define DEF_TEXT "(default)"
+#define DEF_PROGRAM "(default)"
+#define DEF_SPIN "XYZ"
+#define DEF_WANDER "True"
+#define DEF_FACE_FRONT "True"
+
#ifdef HAVE_UNAME
# include <sys/utsname.h>
#endif /* HAVE_UNAME */
-
-#include <GL/glu.h>
#include "glutstroke.h"
#include "glut_roman.h"
#define GLUT_FONT (&glutStrokeRoman)
typedef struct {
GLXContext *glx_context;
-
- GLfloat rotx, roty, rotz; /* current object rotation */
- GLfloat dx, dy, dz; /* current rotational velocity */
- GLfloat ddx, ddy, ddz; /* current rotational acceleration */
- GLfloat d_max; /* max velocity */
+ rotator *rot, *rot2;
+ trackball_state *trackball;
+ Bool button_down_p;
+ Bool spinx, spiny, spinz;
GLuint text_list;
XColor *colors;
int ccolor;
- Bool spin_x, spin_y, spin_z;
char *text;
+ int reload;
+
+ time_t last_update;
+ text_data *tc;
} text_configuration;
static text_configuration *tps = NULL;
static char *text_fmt;
+static char *program_str;
static char *do_spin;
static Bool do_wander;
+static Bool face_front_p;
static XrmOptionDescRec opts[] = {
- { "-text", ".text", XrmoptionSepArg, 0 },
- { "-spin", ".spin", XrmoptionSepArg, 0 },
- { "+spin", ".spin", XrmoptionNoArg, "False" },
- { "-wander", ".wander", XrmoptionNoArg, "True" },
- { "+wander", ".wander", XrmoptionNoArg, "False" }
+ { "-text", ".text", XrmoptionSepArg, 0 },
+ { "-program", ".program", XrmoptionSepArg, 0 },
+ { "-spin", ".spin", XrmoptionSepArg, 0 },
+ { "+spin", ".spin", XrmoptionNoArg, "" },
+ { "-wander", ".wander", XrmoptionNoArg, "True" },
+ { "+wander", ".wander", XrmoptionNoArg, "False" },
+ { "-front", ".faceFront", XrmoptionNoArg, "True" },
+ { "+front", ".faceFront", XrmoptionNoArg, "False" }
};
static argtype vars[] = {
- {(caddr_t *) &text_fmt, "text", "Text", DEF_TEXT, t_String},
- {(caddr_t *) &do_spin, "spin", "Spin", DEF_SPIN, t_String},
- {(caddr_t *) &do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
+ {&text_fmt, "text", "Text", DEF_TEXT, t_String},
+ {&program_str, "program", "Program", DEF_PROGRAM, t_String},
+ {&do_spin, "spin", "Spin", DEF_SPIN, t_String},
+ {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
+ {&face_front_p, "faceFront", "FaceFront", DEF_FACE_FRONT, t_Bool},
};
-ModeSpecOpt sws_opts = {countof(opts), opts, countof(vars), vars, NULL};
+ENTRYPOINT ModeSpecOpt text_opts = {countof(opts), opts, countof(vars), vars, NULL};
/* Window management, etc
*/
-void
+ENTRYPOINT void
reshape_text (ModeInfo *mi, int width, int height)
{
GLfloat h = (GLfloat) height / (GLfloat) width;
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
+ gluPerspective (30.0, 1/h, 1.0, 100.0);
- gluPerspective( 30.0, 1/h, 1.0, 100.0 );
- gluLookAt( 0.0, 0.0, 15.0,
- 0.0, 0.0, 0.0,
- 0.0, 1.0, 0.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
- glTranslatef(0.0, 0.0, -15.0);
+ gluLookAt( 0.0, 0.0, 30.0,
+ 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);
}
text_configuration *tp = &tps[MI_SCREEN(mi)];
int wire = MI_IS_WIREFRAME(mi);
- static GLfloat pos[4] = {5.0, 5.0, 10.0, 1.0};
+ static const GLfloat pos[4] = {5.0, 5.0, 10.0, 1.0};
if (!wire)
{
}
-/* lifted from lament.c */
-#define RAND(n) ((long) ((random() & 0x7fffffff) % ((long) (n))))
-#define RANDSIGN() ((random() & 1) ? 1 : -1)
-
static void
-rotate(GLfloat *pos, GLfloat *v, GLfloat *dv, GLfloat max_v)
+parse_text (ModeInfo *mi)
{
- double ppos = *pos;
-
- /* tick position */
- if (ppos < 0)
- ppos = -(ppos + *v);
- else
- ppos += *v;
-
- if (ppos > 1.0)
- ppos -= 1.0;
- else if (ppos < 0)
- ppos += 1.0;
-
- if (ppos < 0) abort();
- if (ppos > 1.0) abort();
- *pos = (*pos > 0 ? ppos : -ppos);
-
- /* accelerate */
- *v += *dv;
+ text_configuration *tp = &tps[MI_SCREEN(mi)];
+ char *old = tp->text;
- /* clamp velocity */
- if (*v > max_v || *v < -max_v)
- {
- *dv = -*dv;
- }
- /* If it stops, start it going in the other direction. */
- else if (*v < 0)
+ if (program_str && *program_str && !!strcmp(program_str, "(default)"))
{
- if (random() % 4)
- {
- *v = 0;
-
- /* keep going in the same direction */
- if (random() % 2)
- *dv = 0;
- else if (*dv < 0)
- *dv = -*dv;
- }
- else
- {
- /* reverse gears */
- *v = -*v;
- *dv = -*dv;
- *pos = -*pos;
- }
- }
+ int max_lines = 8;
+ char buf[1024];
+ char *p = buf;
+ int lines = 0;
- /* Alter direction of rotational acceleration randomly. */
- if (! (random() % 120))
- *dv = -*dv;
+ if (! tp->tc)
+ tp->tc = textclient_open (mi->dpy);
- /* Change acceleration very occasionally. */
- if (! (random() % 200))
- {
- if (*dv == 0)
- *dv = 0.00001;
- else if (random() & 1)
- *dv *= 1.2;
- else
- *dv *= 0.8;
- }
-}
-
-
-static void
-parse_text (ModeInfo *mi)
-{
- text_configuration *tp = &tps[MI_SCREEN(mi)];
+ while (p < buf + sizeof(buf) - 1 &&
+ lines < max_lines)
+ {
+ int c = textclient_getc (tp->tc);
+ if (c == '\n')
+ lines++;
+ if (c > 0)
+ *p++ = (char) c;
+ else
+ break;
+ }
+ *p = 0;
+ if (lines == 0 && buf[0])
+ lines++;
- if (tp->text) free (tp->text);
+ tp->text = strdup (buf);
+
+ tp->reload = 7; /* Let this one linger for a few seconds */
+ if (!*tp->text)
+ tp->reload = 1;
- if (!text_fmt || !*text_fmt || !strcmp(text_fmt, "(default)"))
+ }
+ else if (!text_fmt || !*text_fmt || !strcmp(text_fmt, "(default)"))
{
# ifdef HAVE_UNAME
struct utsname uts;
strlen(uts.sysname) +
strlen(uts.version) +
strlen(uts.release) + 10);
-# ifdef _AIX
+# if defined(_AIX)
sprintf(tp->text, "%s\n%s %s.%s",
uts.nodename, uts.sysname, uts.version, uts.release);
-# else /* !_AIX */
+# elif defined(USE_IPHONE)
+ /* "My iPhone\n iPhone4,1\n Darwin 11.0.0" */
+ sprintf(tp->text, "%s\n%s\n%s %s",
+ uts.nodename, uts.machine, uts.sysname, uts.release);
+# elif defined(__APPLE__) /* MacOS X + XDarwin */
+ {
+ const char *file =
+ "/System/Library/CoreServices/SystemVersion.plist";
+ FILE *f = fopen (file, "r");
+ char *pbv = 0, *pn = 0, *puvv = 0;
+ if (f) {
+ char *s, buf[255];
+
+ while (fgets (buf, sizeof(buf)-1, f)) {
+# define GRAB(S,V) \
+ if (strstr(buf, S)) { \
+ fgets (buf, sizeof(buf)-1, f); \
+ if ((s = strchr (buf, '>'))) V = strdup(s+1); \
+ if ((s = strchr (V, '<'))) *s = 0; \
+ }
+ GRAB ("ProductName", pn)
+ GRAB ("ProductBuildVersion", pbv)
+ GRAB ("ProductUserVisibleVersion", puvv)
+# undef GRAB
+ }
+ }
+ if (pbv)
+ sprintf (tp->text, "%s\n%s\n%s\n%s",
+ uts.nodename, pn, puvv, uts.machine);
+ else
+ sprintf(tp->text, "%s\n%s %s\n%s",
+ uts.nodename, uts.sysname, uts.release, uts.machine);
+ }
+# else
sprintf(tp->text, "%s\n%s %s",
uts.nodename, uts.sysname, uts.release);
-# endif /* !_AIX */
+# endif /* special system types */
}
# else /* !HAVE_UNAME */
# ifdef VMS
strftime (tp->text, L-1, text_fmt, tm);
if (!*tp->text)
sprintf (tp->text, "strftime error:\n%s", text_fmt);
+ tp->reload = 1;
}
+
+ {
+ /* The GLUT font only has ASCII characters. */
+ char *s1 = utf8_to_latin1 (tp->text, True);
+ free (tp->text);
+ tp->text = s1;
+ }
+
+ /* If we had text before but got no text this time, hold on to the
+ old one, to avoid flickering.
+ */
+ if (old && *old && !*tp->text)
+ {
+ free (tp->text);
+ tp->text = old;
+ }
+ else if (old)
+ free (old);
}
-void
+ENTRYPOINT Bool
+text_handle_event (ModeInfo *mi, XEvent *event)
+{
+ text_configuration *tp = &tps[MI_SCREEN(mi)];
+
+ if (gltrackball_event_handler (event, tp->trackball,
+ MI_WIDTH (mi), MI_HEIGHT (mi),
+ &tp->button_down_p))
+ return True;
+
+ return False;
+}
+
+
+static void free_text(ModeInfo * mi);
+
+
+ENTRYPOINT void
init_text (ModeInfo *mi)
{
text_configuration *tp;
+ int i;
- if (!tps) {
- tps = (text_configuration *)
- calloc (MI_NUM_SCREENS(mi), sizeof (text_configuration));
- if (!tps) {
- fprintf(stderr, "%s: out of memory\n", progname);
- exit(1);
- }
-
- tp = &tps[MI_SCREEN(mi)];
- }
+ MI_INIT (mi, tps, free_text);
tp = &tps[MI_SCREEN(mi)];
reshape_text (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
}
- tp->rotx = frand(1.0) * RANDSIGN();
- tp->roty = frand(1.0) * RANDSIGN();
- tp->rotz = frand(1.0) * RANDSIGN();
-
- /* bell curve from 0-6 degrees, avg 3 */
- tp->dx = (frand(1) + frand(1) + frand(1)) / (360/2);
- tp->dy = (frand(1) + frand(1) + frand(1)) / (360/2);
- tp->dz = (frand(1) + frand(1) + frand(1)) / (360/2);
-
- tp->d_max = tp->dx * 2;
-
- tp->ddx = 0.00006 + frand(0.00003);
- tp->ddy = 0.00006 + frand(0.00003);
- tp->ddz = 0.00006 + frand(0.00003);
-
-
- tp->ncolors = 255;
- tp->colors = (XColor *) calloc(tp->ncolors, sizeof(XColor));
- make_smooth_colormap (0, 0, 0,
- tp->colors, &tp->ncolors,
- False, 0, False);
-
- parse_text (mi);
-
{
+ double spin_speed = 0.5;
+ double wander_speed = 0.02;
+ double tilt_speed = 0.03;
+ double spin_accel = 0.5;
+
char *s = do_spin;
while (*s)
{
- if (*s == 'x' || *s == 'X') tp->spin_x = 1;
- else if (*s == 'y' || *s == 'Y') tp->spin_y = 1;
- else if (*s == 'z' || *s == 'Z') tp->spin_z = 1;
+ if (*s == 'x' || *s == 'X') tp->spinx = True;
+ else if (*s == 'y' || *s == 'Y') tp->spiny = True;
+ else if (*s == 'z' || *s == 'Z') tp->spinz = True;
+ else if (*s == '0') ;
else
{
fprintf (stderr,
}
s++;
}
+
+ tp->rot = make_rotator (tp->spinx ? spin_speed : 0,
+ tp->spiny ? spin_speed : 0,
+ tp->spinz ? spin_speed : 0,
+ spin_accel,
+ do_wander ? wander_speed : 0,
+ False);
+ tp->rot2 = (face_front_p
+ ? make_rotator (0, 0, 0, 0, tilt_speed, True)
+ : 0);
+ tp->trackball = gltrackball_init (False);
}
+ tp->ncolors = 255;
+ tp->colors = (XColor *) calloc(tp->ncolors, sizeof(XColor));
+ make_smooth_colormap (0, 0, 0,
+ tp->colors, &tp->ncolors,
+ False, 0, False);
+
+ /* brighter colors, please... */
+ for (i = 0; i < tp->ncolors; i++)
+ {
+ tp->colors[i].red = (tp->colors[i].red / 2) + 32767;
+ tp->colors[i].green = (tp->colors[i].green / 2) + 32767;
+ tp->colors[i].blue = (tp->colors[i].blue / 2) + 32767;
+ }
+
+ parse_text (mi);
+
}
static int
-fill_character (GLUTstrokeFont font, int c, Bool wire)
+fill_character (GLUTstrokeFont font, int c, Bool wire, int *polysP)
{
GLfloat tube_width = 10;
ch = &(fontinfo->ch[c]);
if (ch)
{
- GLfloat lx, ly;
+ GLfloat lx=0, ly=0;
for (i = ch->num_strokes, stroke = ch->stroke;
i > 0; i--, stroke++) {
for (j = stroke->num_coords, coord = stroke->coord;
# else
int smooth = False;
# endif
+
if (j != stroke->num_coords)
- tube (lx, ly, 0,
- coord->x, coord->y, 0,
- tube_width,
- tube_width * 0.15,
- TUBE_FACES, smooth, wire);
+ *polysP += tube (lx, ly, 0,
+ coord->x, coord->y, 0,
+ tube_width,
+ tube_width * 0.15,
+ TUBE_FACES, smooth, False, wire);
lx = coord->x;
ly = coord->y;
+
+ /* Put a sphere at the endpoint of every line segment. Wasteful
+ on curves like "0" but necessary on corners like "4". */
+ if (! wire)
+ {
+ glPushMatrix();
+ glTranslatef (lx, ly, 0);
+ glScalef (tube_width, tube_width, tube_width);
+ *polysP += unit_sphere (TUBE_FACES, TUBE_FACES, wire);
+ glPopMatrix();
+ }
}
}
- return (int) (ch->right + tube_width/2);
+ return (int) (ch->right + tube_width);
}
return 0;
}
if (w > *wP) *wP = w;
*hP += line_height;
- s++;
lines++;
if (*s == 0) break;
+ s++;
}
else
s++;
}
-static void
+static unsigned long
fill_string (const char *string, Bool wire)
{
+ int polys = 0;
const char *s, *start;
int line_height = GLUT_FONT->top - GLUT_FONT->bottom;
int off;
GLfloat x = 0, y = 0;
- int lines;
int ow, oh;
- lines = text_extents (string, &ow, &oh);
+ text_extents (string, &ow, &oh);
y = oh / 2 - line_height;
{
glPushMatrix();
glTranslatef(x, y, 0);
- off = fill_character (GLUT_FONT, *s2, wire);
+ off = fill_character (GLUT_FONT, *s2, wire, &polys);
x += off;
glPopMatrix();
}
}
else
s++;
+ return polys;
}
-void
+ENTRYPOINT void
draw_text (ModeInfo *mi)
{
text_configuration *tp = &tps[MI_SCREEN(mi)];
Window window = MI_WINDOW(mi);
int wire = MI_IS_WIREFRAME(mi);
- static GLfloat color[4] = {0.0, 0.0, 0.0, 1.0};
- static GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+ GLfloat white[4] = {1.0, 1.0, 1.0, 1.0};
+ GLfloat color[4] = {0.0, 0.0, 0.0, 1.0};
if (!tp->glx_context)
return;
- if (strchr (text_fmt, '%'))
+ glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(tp->glx_context));
+
+ if (tp->reload)
{
- static time_t last_update = -1;
- time_t now = time ((time_t *) 0);
- if (now != last_update) /* do it once a second */
- parse_text (mi);
- last_update = now;
+ if (time ((time_t *) 0) >= tp->last_update + tp->reload)
+ {
+ parse_text (mi);
+ tp->last_update = time ((time_t *) 0);
+ }
}
glShadeModel(GL_SMOOTH);
glEnable(GL_NORMALIZE);
glEnable(GL_CULL_FACE);
+
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix ();
-
glScalef(1.1, 1.1, 1.1);
+ glRotatef(current_device_rotation(), 0, 0, 1);
{
- GLfloat x, y, z;
-
- if (do_wander)
- {
- static int frame = 0;
+ double x, y, z;
+ get_position (tp->rot, &x, &y, &z, !tp->button_down_p);
+ glTranslatef((x - 0.5) * 8,
+ (y - 0.5) * 8,
+ (z - 0.5) * 8);
-# define SINOID(SCALE,SIZE) \
- ((((1 + sin((frame * (SCALE)) / 2 * M_PI)) / 2.0) * (SIZE)) - (SIZE)/2)
+ gltrackball_rotate (tp->trackball);
- x = SINOID(0.031, 9.0);
- y = SINOID(0.023, 9.0);
- z = SINOID(0.017, 9.0);
- frame++;
- glTranslatef(x, y, z);
+ if (face_front_p)
+ {
+ double max = 90;
+ get_position (tp->rot2, &x, &y, &z, !tp->button_down_p);
+ if (tp->spinx) glRotatef (max/2 - x*max, 1, 0, 0);
+ if (tp->spiny) glRotatef (max/2 - y*max, 0, 1, 0);
+ if (tp->spinz) glRotatef (max/2 - z*max, 0, 0, 1);
}
-
- if (tp->spin_x || tp->spin_y || tp->spin_z)
+ else
{
- x = tp->rotx;
- y = tp->roty;
- z = tp->rotz;
- if (x < 0) x = 1 - (x + 1);
- if (y < 0) y = 1 - (y + 1);
- if (z < 0) z = 1 - (z + 1);
-
- if (tp->spin_x) glRotatef(x * 360, 1.0, 0.0, 0.0);
- if (tp->spin_y) glRotatef(y * 360, 0.0, 1.0, 0.0);
- if (tp->spin_z) glRotatef(z * 360, 0.0, 0.0, 1.0);
-
- rotate(&tp->rotx, &tp->dx, &tp->ddx, tp->d_max);
- rotate(&tp->roty, &tp->dy, &tp->ddy, tp->d_max);
- rotate(&tp->rotz, &tp->dz, &tp->ddz, tp->d_max);
+ get_rotation (tp->rot, &x, &y, &z, !tp->button_down_p);
+ glRotatef (x * 360, 1, 0, 0);
+ glRotatef (y * 360, 0, 1, 0);
+ glRotatef (z * 360, 0, 0, 1);
}
}
+
glColor4fv (white);
color[0] = tp->colors[tp->ccolor].red / 65536.0;
glScalef(0.01, 0.01, 0.01);
- fill_string(tp->text, wire);
+ mi->polygon_count = fill_string(tp->text, wire);
glPopMatrix ();
glXSwapBuffers(dpy, window);
}
+ENTRYPOINT void
+free_text(ModeInfo * mi)
+{
+ text_configuration *tp = &tps[MI_SCREEN(mi)];
+ if (tp->tc)
+ textclient_close (tp->tc);
+}
+
+
+XSCREENSAVER_MODULE_2 ("GLText", gltext, text)
+
#endif /* USE_GL */
projects / xscreensaver / blobdiff