-/* gltext, Copyright (c) 2001 Jamie Zawinski <jwz@jwz.org>
+/* gltext, Copyright (c) 2001, 2002, 2003, 2004 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
#define HACK_INIT init_text
#define HACK_DRAW draw_text
#define HACK_RESHAPE reshape_text
+#define HACK_HANDLE_EVENT text_handle_event
+#define EVENT_MASK PointerMotionMask
#define sws_opts xlockmore_opts
#define DEF_TEXT "(default)"
#define DEF_SPIN "XYZ"
#define DEF_WANDER "True"
-#define DEFAULTS "*delay: 10000 \n" \
+#define DEFAULTS "*delay: 20000 \n" \
"*showFPS: False \n" \
"*wireframe: False \n" \
"*spin: " DEF_SPIN "\n" \
#include "xlockmore.h"
#include "colors.h"
+#include "tube.h"
+#include "rotator.h"
+#include "gltrackball.h"
+#include <time.h>
+#include <sys/time.h>
#include <ctype.h>
#ifdef USE_GL /* whole file */
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;
+ trackball_state *trackball;
+ Bool button_down_p;
GLuint text_list;
XColor *colors;
int ccolor;
- Bool spin_x, spin_y, spin_z;
char *text;
} text_configuration;
};
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},
+ {&do_spin, "spin", "Spin", DEF_SPIN, t_String},
+ {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
};
ModeSpecOpt sws_opts = {countof(opts), opts, countof(vars), vars, NULL};
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);
glClear(GL_COLOR_BUFFER_BIT);
}
}
-/* lifted from lament.c */
-#define RAND(n) ((long) ((random() & 0x7fffffff) % ((long) (n))))
-#define RANDSIGN() ((random() & 1) ? 1 : -1)
-
+/* The GLUT font only has ASCII characters in them, so do what we can to
+ convert Latin1 characters to the nearest ASCII equivalent...
+ */
static void
-rotate(GLfloat *pos, GLfloat *v, GLfloat *dv, GLfloat max_v)
+latin1_to_ascii (char *s)
{
- 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;
-
- /* clamp velocity */
- if (*v > max_v || *v < -max_v)
+ unsigned char *us = (unsigned char *) s;
+ const unsigned char ascii[95] = {
+ '!', 'C', '#', '#', 'Y', '|', 'S', '_', 'C', '?', '<', '=', '-', 'R', '_',
+ '?', '?', '2', '3', '\'','u', 'P', '.', ',', '1', 'o', '>', '?', '?', '?',
+ '?', 'A', 'A', 'A', 'A', 'A', 'A', 'E', 'C', 'E', 'E', 'E', 'E', 'I', 'I',
+ 'I', 'I', 'D', 'N', 'O', 'O', 'O', 'O', 'O', 'x', '0', 'U', 'U', 'U', 'U',
+ 'Y', 'p', 'S', 'a', 'a', 'a', 'a', 'a', 'a', 'e', 'c', 'e', 'e', 'e', 'e',
+ 'i', 'i', 'i', 'i', 'o', 'n', 'o', 'o', 'o', 'o', 'o', '/', 'o', 'u', 'u',
+ 'u', 'u', 'y', 'p', 'y' };
+ while (*us)
{
- *dv = -*dv;
- }
- /* If it stops, start it going in the other direction. */
- else if (*v < 0)
- {
- 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;
- }
- }
-
- /* Alter direction of rotational acceleration randomly. */
- if (! (random() % 120))
- *dv = -*dv;
-
- /* Change acceleration very occasionally. */
- if (! (random() % 200))
- {
- if (*dv == 0)
- *dv = 0.00001;
- else if (random() & 1)
- *dv *= 1.2;
- else
- *dv *= 0.8;
+ if (*us >= 161)
+ *us = ascii[*us - 161];
+ else if (*us > 127)
+ *us = '?';
+ us++;
}
}
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(__APPLE__) /* MacOS X + XDarwin */
+ 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
if (!*tp->text)
sprintf (tp->text, "strftime error:\n%s", text_fmt);
}
+
+ latin1_to_ascii (tp->text);
+}
+
+
+Bool
+text_handle_event (ModeInfo *mi, XEvent *event)
+{
+ text_configuration *tp = &tps[MI_SCREEN(mi)];
+
+ if (event->xany.type == ButtonPress &&
+ event->xbutton.button & Button1)
+ {
+ tp->button_down_p = True;
+ gltrackball_start (tp->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)
+ {
+ tp->button_down_p = False;
+ return True;
+ }
+ else if (event->xany.type == MotionNotify &&
+ tp->button_down_p)
+ {
+ gltrackball_track (tp->trackball,
+ event->xmotion.x, event->xmotion.y,
+ MI_WIDTH (mi), MI_HEIGHT (mi));
+ return True;
+ }
+
+ return False;
}
init_text (ModeInfo *mi)
{
text_configuration *tp;
+ int i;
if (!tps) {
tps = (text_configuration *)
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);
-
{
+ Bool spinx=False, spiny=False, spinz=False;
+ double spin_speed = 0.5;
+ double wander_speed = 0.02;
+ 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') spinx = True;
+ else if (*s == 'y' || *s == 'Y') spiny = True;
+ else if (*s == 'z' || *s == 'Z') spinz = True;
else
{
fprintf (stderr,
}
s++;
}
- }
-}
-
-
-static void
-unit_tube (Bool wire)
-{
- int i;
- int faces = TUBE_FACES;
- GLfloat step = M_PI * 2 / faces;
- GLfloat th;
- int z = 0;
-
- /* side walls
- */
- glFrontFace(GL_CCW);
-
-# ifdef SMOOTH_TUBE
- glBegin(wire ? GL_LINES : GL_QUAD_STRIP);
-# else
- glBegin(wire ? GL_LINES : GL_QUADS);
-# endif
+ tp->rot = make_rotator (spinx ? spin_speed : 0,
+ spiny ? spin_speed : 0,
+ spinz ? spin_speed : 0,
+ spin_accel,
+ do_wander ? wander_speed : 0,
+ False);
+ tp->trackball = gltrackball_init ();
+ }
- for (i = 0, th = 0; i <= faces; i++)
- {
- GLfloat x = cos (th);
- GLfloat y = sin (th);
- glNormal3f(x, 0, y);
- glVertex3f(x, 0.0, y);
- glVertex3f(x, 1.0, y);
- th += step;
-
-# ifndef SMOOTH_TUBE
- x = cos (th);
- y = sin (th);
- glVertex3f(x, 1.0, y);
- glVertex3f(x, 0.0, y);
-# endif
- }
- glEnd();
+ tp->ncolors = 255;
+ tp->colors = (XColor *) calloc(tp->ncolors, sizeof(XColor));
+ make_smooth_colormap (0, 0, 0,
+ tp->colors, &tp->ncolors,
+ False, 0, False);
- /* End caps
- */
- for (z = 0; z <= 1; z++)
+ /* brighter colors, please... */
+ for (i = 0; i < tp->ncolors; i++)
{
- glFrontFace(z == 0 ? GL_CCW : GL_CW);
- glNormal3f(0, (z == 0 ? -1 : 1), 0);
- glBegin(wire ? GL_LINE_LOOP : GL_TRIANGLE_FAN);
- if (! wire) glVertex3f(0, z, 0);
- for (i = 0, th = 0; i <= faces; i++)
- {
- GLfloat x = cos (th);
- GLfloat y = sin (th);
- glVertex3f(x, z, y);
- th += step;
- }
- glEnd();
+ 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;
}
-}
-
-
-static void
-tube (GLfloat x1, GLfloat y1, GLfloat z1,
- GLfloat x2, GLfloat y2, GLfloat z2,
- GLfloat diameter, GLfloat cap_size,
- Bool wire)
-{
- GLfloat length, angle, a, b, c;
-
- if (diameter <= 0) abort();
-
- a = (x2 - x1);
- b = (y2 - y1);
- c = (z2 - z1);
-
- length = sqrt (a*a + b*b + c*c);
- angle = acos (a / length);
-
- glPushMatrix();
- glTranslatef(x1, y1, z1);
- glScalef (length, length, length);
-
- if (c == 0 && b == 0)
- glRotatef (angle / (M_PI / 180), 0, 1, 0);
- else
- glRotatef (angle / (M_PI / 180), 0, -c, b);
- glRotatef (-90, 0, 0, 1);
- glScalef (diameter/length, 1, diameter/length);
-
- /* extend the endpoints of the tube by the cap size in both directions */
- if (cap_size != 0)
- {
- GLfloat c = cap_size/length;
- glTranslatef (0, -c, 0);
- glScalef (1, 1+c+c, 1);
- }
+ parse_text (mi);
- unit_tube (wire);
- glPopMatrix();
}
-
static int
fill_character (GLUTstrokeFont font, int c, Bool wire)
{
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;
j > 0; j--, coord++)
{
+# ifdef SMOOTH_TUBE
+ int smooth = True;
+# else
+ int smooth = False;
+# endif
if (j != stroke->num_coords)
- tube (lx, ly, 0,
+ tube (lx, ly, 0,
coord->x, coord->y, 0,
tube_width,
tube_width * 0.15,
- wire);
+ TUBE_FACES, smooth, True, wire);
lx = coord->x;
ly = coord->y;
}
if (w > *wP) *wP = w;
*hP += line_height;
- s++;
lines++;
if (*s == 0) break;
+ s++;
}
else
s++;
glScalef(1.1, 1.1, 1.1);
{
- GLfloat x, y, z;
-
- if (do_wander)
- {
- static int frame = 0;
-
-# define SINOID(SCALE,SIZE) \
- ((((1 + sin((frame * (SCALE)) / 2 * M_PI)) / 2.0) * (SIZE)) - (SIZE)/2)
-
- x = SINOID(0.031, 9.0);
- y = SINOID(0.023, 9.0);
- z = SINOID(0.017, 9.0);
- frame++;
- glTranslatef(x, y, z);
- }
-
- if (tp->spin_x || tp->spin_y || tp->spin_z)
- {
- 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);
- }
+ 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);
+
+ gltrackball_rotate (tp->trackball);
+
+ get_rotation (tp->rot, &x, &y, &z, !tp->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);
}
+
glColor4fv (white);
color[0] = tp->colors[tp->ccolor].red / 65536.0;
projects / xscreensaver / blobdiff