-/* DNA Logo, Copyright (c) 2001-2011 Jamie Zawinski <jwz@jwz.org>
+/* DNA Logo, Copyright (c) 2001-2016 Jamie Zawinski <jwz@jwz.org>
*
* DNA Lounge
*
* San Francisco, CA
* 94103
*
- * http://www.dnalounge.com/
+ * https://www.dnalounge.com/
* http://www.dnapizza.com/
*
* Permission to use, copy, modify, distribute, and sell this software and its
"*frameDepth: 0.01 \n" \
"*frameThickness: 0.03 \n" \
"*triangleSize: 0.045 \n" \
+ "*cwFacets: 3 \n" \
+ "*cwDiscFacets: 64 \n" \
+ "*cwSpread: 0.5 \n" \
+ "*cwLineWidth: 0.18 \n" \
+ "*cwThickness: 0.15 \n" \
+ "*cwCapSize: 0.4 \n" \
+ "*text: CODEWORD\n" \
"*speed: 1.0 \n" \
"*mode: both" "\n" \
- ".foreground: #00AA00 \n" \
+ ".background: #000000\n" \
+ ".foreground: #00AA00\n" \
+ ".cwForeground: #FCA816\n" \
+ ".cwBackground: #943225\n" \
+ "*cwFont: " CWFONT "\n" \
"*geometry: =640x640\n" \
+# if defined(HAVE_COCOA) || defined(HAVE_ANDROID)
+# define CWFONT "Yearling 28, OCR A Std 24"
+# else
+# define CWFONT "-*-helvetica-medium-r-normal-*-*-240-*-*-*-*-*-*"
+# endif
+
# define refresh_logo 0
# define release_logo 0
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
+#undef DXF_OUTPUT_HACK
+
#ifdef DXF_OUTPUT_HACK /* When this is defined, instead of rendering
to the screen, we write a DXF CAD file to stdout.
This is a kludge of shocking magnitude...
#include "xlockmore.h"
#include "normals.h"
#include "tube.h"
+#include "sphere.h"
#include "rotator.h"
#include "gltrackball.h"
+#include "utf8wc.h"
+#include "texfont.h"
#ifdef USE_GL /* whole file */
#endif
typedef enum {
- HELIX_IN, HELIX, HELIX_OUT,
+ HELIX_IN, HELIX, HELIX_OUT,
PIZZA_IN, PIZZA, PIZZA_OUT,
- BOTH
+ HELIX_AND_PIZZA,
+ CODEWORD_IN, CODEWORD, CODEWORD_OUT, CODEWORD_BLANK
} glyph_mode;
typedef struct {
Bool spinning_p;
- GLfloat position; /* 0.0 - 1.0 */
- GLfloat speed; /* how far along the path (may be negative) */
- GLfloat probability; /* relative likelyhood to start spinning */
+ GLfloat position; /* 0.0 - 1.0 */
+ GLfloat position_eased; /* 0.0 - 1.0, eased in and out */
+ GLfloat easement; /* portion of path that is eased. <= 0.5 */
+ GLfloat speed; /* how far along the path (may be negative) */
+ GLfloat probability; /* relative likelyhood to start spinning */
} spinner;
typedef struct {
GLfloat frame_thickness;
GLfloat triangle_size;
+ int codeword_facets, codeword_disc_facets;
+ GLfloat codeword_spread, codeword_line_width, codeword_thickness;
+ GLfloat codeword_cap_size;
+ const char *codeword_text;
+ char *codeword_text_out;
+ int *codeword_text_points;
+ XYZ *codeword_path;
+ int codeword_path_npoints;
+ int codeword_nguides;
+ XYZ *codeword_guides;
+ GLfloat codeword_color[4], codeword_bg[4];
+ texture_font_data *font;
+
GLfloat speed;
glyph_mode mode;
glyph_mode anim_state;
GLfloat anim_ratio;
spinner gasket_spinnerx, gasket_spinnery, gasket_spinnerz;
- spinner scene_spinnerx, scene_spinnery;
+ spinner scene_spinnerx, scene_spinnery; /* for DNA */
+ rotator *scene_rot; /* for Codeword */
spinner helix_spinnerz;
spinner pizza_spinnery, pizza_spinnerz;
spinner frame_spinner;
static logo_configuration *dcs = NULL;
static XrmOptionDescRec opts[] = {
- { "-speed", ".speed", XrmoptionSepArg, 0 },
- { "-mode", ".mode", XrmoptionSepArg, 0 },
- { "-pizza", ".mode", XrmoptionNoArg, "pizza" },
- { "-helix", ".mode", XrmoptionNoArg, "helix" },
- { "-both", ".mode", XrmoptionNoArg, "both" },
+ { "-speed", ".speed", XrmoptionSepArg, 0 },
+ { "-mode", ".mode", XrmoptionSepArg, 0 },
+ { "-pizza", ".mode", XrmoptionNoArg, "pizza" },
+ { "-helix", ".mode", XrmoptionNoArg, "helix" },
+ { "-both", ".mode", XrmoptionNoArg, "both" },
+ { "-codeword", ".mode", XrmoptionNoArg, "codeword" },
+ { "-cw", ".mode", XrmoptionNoArg, "codeword" },
+ { "-text", ".text", XrmoptionSepArg, 0 },
};
ENTRYPOINT ModeSpecOpt logo_opts = {countof(opts), opts, 0, NULL, NULL};
}
-# define XYZ tube_XYZ /* avoid conflict with normals.h */
-# include "tube.c" /* Yes, I really am including a C file. */
+# define XYZ tube_XYZ /* avoid conflict with normals.h */
+# include "tube.c" /* Yes, I really am including a C file. */
+# undef XYZ
+# define XYZ sphere_XYZ
+# define unit_sphere unit_sphere_dxf
+# define unit_dome unit_dome_dxf
+# include "sphere.c"
# undef XYZ
#endif /* DXF_OUTPUT_HACK */
\f
-/* Calculate the angle (in degrees) between two vectors.
+/* Calculate the angle (in radians) between two vectors.
*/
static GLfloat
vector_angle (double ax, double ay, double az,
if (cc > 1) cc = 1; /* avoid fp rounding error (1.000001 => sqrt error) */
angle = acos (cc);
- return (angle * M_PI / 180);
+ return (angle);
+}
+
+static void
+normalize (XYZ *p)
+{
+ GLfloat d = sqrt (p->x*p->x + p->y*p->y + p->z*p->z);
+ if (d != 0)
+ {
+ p->x /= d;
+ p->y /= d;
+ p->z /= d;
+ }
+ else
+ {
+ p->x = p->y = p->z = 0;
+ }
+}
+
+
+static double
+dot (const XYZ u, const XYZ v)
+{
+ return (u.x * v.x) + (u.y * v.y) + (u.z * v.z);
}
\f
GLfloat anglea = vector_angle (nx, ny, 0, nxa, nya, 0);
GLfloat anglez = vector_angle (nx, ny, 0, nxz, nyz, 0);
- GLfloat pointy = 0.005;
+ GLfloat pointy = 0.6;
if (anglea > pointy)
{
GLfloat th, x, y, s;
int i, j, k;
int endpoints;
- int endedge1;
# ifdef HAVE_TESS
tess_out TO, *to = &TO;
points[j++] = edge[i*2];
points[j++] = 0;
}
- endedge1 = i;
}
s = 0.798; /* radius of end of slice, before crust gap */
# else /* !HAVE_TESS */
if (! wire)
{
+ glTranslatef(0, 0, thick2);
+ glNormal3f (0, 0, 1);
+ glFrontFace (GL_CW);
+
+ /* Sadly, jwzgl's glVertexPointer seems not to be recordable inside
+ display lists. */
+# if 0
glDisableClientState (GL_COLOR_ARRAY);
glDisableClientState (GL_NORMAL_ARRAY);
glDisableClientState (GL_TEXTURE_COORD_ARRAY);
glEnableClientState (GL_VERTEX_ARRAY);
glVertexPointer (3, GL_FLOAT, 0, dnapizza_triangles);
-
- glTranslatef(0, 0, thick2);
- glNormal3f (0, 0, 1);
- glFrontFace (GL_CW);
glDrawArrays (GL_TRIANGLES, 0, countof (dnapizza_triangles) / 3);
+# else
+ glBegin (GL_TRIANGLES);
+ for (i = 0; i < countof (dnapizza_triangles); i += 3)
+ glVertex3fv (dnapizza_triangles + i);
+ glEnd();
+# endif
glTranslatef(0, 0, -thick2*2);
glNormal3f (0, 0, -1);
glFrontFace (GL_CCW);
+
+# if 0
glDrawArrays (GL_TRIANGLES, 0, countof (dnapizza_triangles) / 3);
+# else
+ int i;
+ glBegin (GL_TRIANGLES);
+ for (i = 0; i < countof (dnapizza_triangles); i += 3)
+ glVertex3fv (dnapizza_triangles + i);
+ glEnd();
+# endif
glTranslatef(0, 0, thick2);
}
}
-
-\f
-/* Window management, etc
+/* Upcase string, convert Unicrud to ASCII, remove any non-letters.
*/
-ENTRYPOINT void
-reshape_logo (ModeInfo *mi, int width, int height)
+static char *
+codeword_simplify_text (const char *s0)
{
- GLfloat h = (GLfloat) height / (GLfloat) width;
-
- glViewport (0, 0, (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, 30.0,
- 0.0, 0.0, 0.0,
- 0.0, 1.0, 0.0);
-
- glClear(GL_COLOR_BUFFER_BIT);
+ char *s1 = utf8_to_latin1 ((s0 ? s0 : ""), True);
+ int L = strlen(s1);
+ char *s2 = (char *) malloc (L + 10);
+ char *s3 = s2;
+ int i;
+ for (i = 0; i < L; i++)
+ {
+ char c = s1[i];
+ if (c >= 'a' && c <= 'z')
+ c -= 'a'-'A';
+ if (c >= 'A' && c <= 'Z')
+ *s3++ = c;
+ }
+ *s3 = 0;
+ if (! *s2)
+ strcpy (s2, "CODEWORD");
+ return s2;
}
static void
-gl_init (ModeInfo *mi)
+make_codeword_path (ModeInfo *mi)
{
-/* logo_configuration *dc = &dcs[MI_SCREEN(mi)]; */
- int wire = MI_IS_WIREFRAME(mi);
-
- GLfloat position[] = {0, 0, 0, 0};
- GLfloat direction[] = {3, -1, -3};
+ logo_configuration *dc = &dcs[MI_SCREEN(mi)];
+ int letters = strlen (dc->codeword_text);
- position[0] = -direction[0];
- position[1] = -direction[1];
- position[2] = -direction[2];
+ GLfloat rtick = dc->codeword_spread;
+ GLfloat iradius = rtick * dc->codeword_cap_size;
- if (!wire)
- {
- glLightfv(GL_LIGHT0, GL_POSITION, position);
- glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, direction);
- glShadeModel(GL_SMOOTH);
- glEnable(GL_NORMALIZE);
- glEnable(GL_CULL_FACE);
- glEnable(GL_LIGHTING);
- glEnable(GL_LIGHT0);
- glEnable(GL_DEPTH_TEST);
- }
-}
+ int dial = 0;
+ int letter;
+ GLfloat last_r = 0;
+ GLfloat inner_circum = M_PI * 2 * (iradius + rtick * 2);
+ GLfloat outer_circum = M_PI * 2 * (iradius + rtick * (letters + 1));
+ GLfloat facet_length = inner_circum / (26 * dc->codeword_facets);
+ int outer_facets = ceil (outer_circum / facet_length);
-ENTRYPOINT void
-init_logo (ModeInfo *mi)
-{
- logo_configuration *dc;
- int do_gasket = get_boolean_resource(mi->dpy, "doGasket", "Boolean");
- int do_helix = get_boolean_resource(mi->dpy, "doHelix", "Boolean");
- int do_ladder = (do_helix &&
- get_boolean_resource(mi->dpy, "doLadder", "Boolean"));
- int do_frame = get_boolean_resource(mi->dpy, "doFrame", "Boolean");
- GLfloat helix_rot = 147.0;
+ int *histo = (int *) calloc (letters * 26, sizeof(*histo));
+ XYZ *points = (XYZ *) calloc (letters * outer_facets, sizeof (*points));
+ int npoints = 0;
- if (!do_gasket && !do_helix)
+ for (letter = -1; letter < letters; letter++)
{
- fprintf (stderr, "%s: no helix or gasket?\n", progname);
- exit (1);
- }
-
- if (!dcs) {
- dcs = (logo_configuration *)
- calloc (MI_NUM_SCREENS(mi), sizeof (logo_configuration));
- if (!dcs) {
- fprintf(stderr, "%s: out of memory\n", progname);
- exit(1);
- }
- }
+ if (letter == -1) /* Inner starting point */
+ {
+ points[npoints].x = iradius;
+ points[npoints].y = 0;
+ last_r = iradius;
+ npoints++;
+ }
+ else /* Add arc for this letter */
+ {
+ int direction = (letter & 1 ? -1 : 1);
+ int v = (dc->codeword_text[letter] - 'A' + 1);
+ int dial1 = dial + v * direction;
+
+ GLfloat th;
+ GLfloat th0 = M_PI * 2 / 26 * dial;
+ GLfloat th1 = M_PI * 2 / 26 * dial1;
+ GLfloat r = iradius + rtick * (letter + 2);
+ GLfloat circum = M_PI * 2 * r;
+ GLfloat arc_length = circum * v / 26;
+ int arc_facets = ceil (fabs (arc_length / facet_length));
+ GLfloat facet_th = (th1 - th0) / arc_facets;
+
+ if (arc_facets > outer_facets) abort();
+
+ /* Let's put some intermediate facets on the crossbars too,
+ so that the animation doesn't speed up on those. */
+ {
+ GLfloat rr;
+ for (rr = last_r + facet_length;
+ rr <= r - facet_length;
+ rr += facet_length)
+ {
+ points[npoints].x = rr * cos (th0);
+ points[npoints].y = rr * sin (th0);
+ npoints++;
+ }
+ last_r = r;
+ }
- dc = &dcs[MI_SCREEN(mi)];
- if ((dc->glx_context = init_GL(mi)) != NULL) {
- gl_init(mi);
- reshape_logo (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
- }
+ for (th = th0;
+ (th0 < th1
+ ? th <= th1 + facet_th
+ : th >= th1 + facet_th);
+ th += facet_th)
+ {
+ GLfloat th2 = th;
+ if (th0 < th1 && th > th1)
+ th2 = th1;
+ if (th0 > th1 && th < th1)
+ th2 = th1;
+ points[npoints].x = r * cos (th2);
+ points[npoints].y = r * sin (th2);
+
+ /* Ugh, add point only if it differs from prev.
+ Not sure how this happens. */
+ if (npoints == 0 ||
+ points[npoints-1].x != points[npoints].x ||
+ points[npoints-1].y != points[npoints].y)
+ npoints++;
+ }
- dc->wall_facets = get_integer_resource(mi->dpy, "wallFacets", "Integer");
- dc->bar_facets = get_integer_resource(mi->dpy, "barFacets", "Integer");
- dc->clockwise = get_boolean_resource(mi->dpy, "clockwise", "Boolean");
- dc->turns = get_float_resource(mi->dpy, "turns", "Float");
- dc->turn_spacing = get_float_resource(mi->dpy, "turnSpacing", "Float");
- dc->bar_spacing = get_float_resource(mi->dpy, "barSpacing", "Float");
- dc->wall_height = get_float_resource(mi->dpy, "wallHeight", "Float");
- dc->wall_thickness = get_float_resource(mi->dpy, "wallThickness", "Float");
- dc->bar_thickness = get_float_resource(mi->dpy, "barThickness", "Float");
- dc->wall_taper = get_float_resource(mi->dpy, "wallTaper", "Float");
+ /* Mark up the histo array to find the outer border. */
+ {
+ int i;
+ for (i = dial;
+ (direction > 0
+ ? i <= dial1
+ : i >= dial1);
+ i += direction)
+ {
+ int x = (i + 26) % 26;
+ int y;
+ for (y = 0; y <= letter; y++)
+ histo[y * 26 + x]++;
+ }
+ }
- dc->gasket_size = get_float_resource(mi->dpy,"gasketSize", "Float");
- dc->gasket_depth = get_float_resource(mi->dpy,"gasketDepth", "Float");
- dc->gasket_thickness = get_float_resource(mi->dpy,"gasketThickness","Float");
+ dc->codeword_text_points[letter] = npoints;
- dc->frame_size = get_float_resource(mi->dpy, "frameSize", "Float");
- dc->frame_depth = get_float_resource(mi->dpy, "frameDepth", "Float");
- dc->frame_thickness = get_float_resource(mi->dpy, "frameThickness", "Float");
- dc->triangle_size = get_float_resource(mi->dpy, "triangleSize", "Float");
+ dial = dial1;
+ }
+ }
- dc->speed = get_float_resource(mi->dpy, "speed", "Float");
+ if (npoints >= letters * outer_facets) abort();
- {
- char *s = get_string_resource (MI_DISPLAY (mi), "mode", "String");
- if (!s || !*s || !strcasecmp (s, "helix"))
- dc->mode = HELIX;
- else if (!strcasecmp (s, "pizza"))
- dc->mode = PIZZA;
- else if (!strcasecmp (s, "both"))
- dc->mode = BOTH;
- else
+# if 0
+ { /* Print histo */
+ int x, y;
+ for (y = 0; y < letters; y++)
{
- fprintf (stderr, "%s: mode must be helix, pizza or both, not \"%s\"\n",
- progname, s);
- exit (1);
+ fprintf (stderr, "%2d: ", y);
+ for (x = 0; x < 26; x++)
+ fprintf (stderr, "%x", histo[y * 26 + x]);
+ fprintf (stderr, "\n");
}
- if (s) free (s);
-
- dc->anim_state = (dc->mode == BOTH
- ? ((random() & 1) ? HELIX : PIZZA)
- : dc->mode);
- dc->anim_ratio = 0;
+ fprintf (stderr, "\n");
}
+# endif
- {
- XColor xcolor;
- char *color_name = get_string_resource (mi->dpy, "foreground", "Foreground");
- char *s2;
- for (s2 = color_name + strlen(color_name) - 1; s2 > color_name; s2--)
- if (*s2 == ' ' || *s2 == '\t')
- *s2 = 0;
- else
- break;
+ /* Find a gap in the outer edge, to draw guide dots. */
+ {
+ int x, y;
+ int last_row = letters;
+ int start_dial = -1, end_dial = -1;
- if (! XParseColor (MI_DISPLAY(mi), mi->xgwa.colormap, color_name, &xcolor))
+ for (y = letters-1; y >= 0; y--)
{
- fprintf (stderr, "%s: can't parse color %s\n", progname, color_name);
- exit (1);
+ for (x = 0; x < 26; x++)
+ {
+ if (histo[y * 26 + x] == 0)
+ {
+ if (last_row != y)
+ start_dial = end_dial = -1;
+ last_row = y;
+ if (start_dial == -1)
+ start_dial = x;
+ end_dial = x;
+ }
+ }
}
- dc->color[0] = xcolor.red / 65535.0;
- dc->color[1] = xcolor.green / 65535.0;
- dc->color[2] = xcolor.blue / 65535.0;
- dc->color[3] = 1.0;
+ if (last_row < letters-1 && start_dial >= 0)
+ {
+ GLfloat r = iradius + rtick * (last_row + 2);
+ int i;
+
+ dc->codeword_nguides = 0;
+ dc->codeword_guides = (XYZ *)
+ calloc (end_dial - start_dial + 1, sizeof (*dc->codeword_guides));
+ for (i = start_dial; i <= end_dial; i++)
+ {
+ GLfloat th = i * M_PI * 2 / 26;
+ GLfloat x = r * cos (th);
+ GLfloat y = r * sin (th);
+ dc->codeword_guides[dc->codeword_nguides].x = x;
+ dc->codeword_guides[dc->codeword_nguides].y = y;
+ dc->codeword_nguides++;
+ }
+ }
+ free (histo);
+ histo = 0;
}
- dc->trackball = gltrackball_init ();
+ dc->codeword_path_npoints = npoints;
+ dc->codeword_path = points;
+}
- dc->gasket_spinnerx.probability = 0.1;
- dc->gasket_spinnery.probability = 0.1;
- dc->gasket_spinnerz.probability = 1.0;
- dc->helix_spinnerz.probability = 0.6;
+static int
+draw_codeword_cap (ModeInfo *mi)
+{
+ logo_configuration *dc = &dcs[MI_SCREEN(mi)];
+ int wire = MI_IS_WIREFRAME(mi);
+ int polys = 0;
- dc->pizza_spinnerz.probability = 0.6;
- dc->pizza_spinnery.probability = 0.6;
+ int segments = dc->codeword_disc_facets;
+ GLfloat size = dc->codeword_spread * dc->codeword_cap_size;
+ GLfloat width = dc->codeword_line_width / 2;
+ GLfloat thick = dc->codeword_thickness / 2;
+ GLfloat r1 = size + width/2;
+ GLfloat r2 = size - width/2;
+ GLfloat facet, th, z;
- dc->scene_spinnerx.probability = 0.1;
- dc->scene_spinnery.probability = 0.0;
+ if (wire) segments = 12;
+ facet = M_PI * 2 / segments;
- dc->frame_spinner.probability = 5.0;
+ glPushMatrix();
- /* start the frame off-screen */
- dc->frame_spinner.spinning_p = True;
- dc->frame_spinner.position = 0.3;
- dc->frame_spinner.speed = 0.001;
+ /* Top and bottom */
- if (dc->speed > 0) /* start off with the gasket in motion */
+ for (z = -thick; z <= thick; z += thick*2)
{
- dc->gasket_spinnerz.spinning_p = True;
- dc->gasket_spinnerz.speed = (0.002
- * ((random() & 1) ? 1 : -1)
- * dc->speed);
- }
+ glNormal3f (0, 0, (z < 0 ? -1 : 1));
+ glFrontFace (z < 0 ? GL_CCW : GL_CW);
-# ifdef DXF_OUTPUT_HACK
- {
- dc->frame_depth = dc->gasket_depth;
- dxf_layer = 1;
- dxf_color = 3;
- dxf_start();
- glPushMatrix();
- glRotatef(90, 1, 0, 0);
- glRotatef(90, 0, 0, 1);
- make_pizza (dc, 0, 0);
+ glBegin (wire ? GL_LINES : GL_QUAD_STRIP);
+ for (th = 0; th <= M_PI*2; th += facet)
+ {
+ GLfloat x = cos (th);
+ GLfloat y = sin (th);
+ glVertex3f (r1 * x, r1 * y, z);
+ glVertex3f (r2 * x, r2 * y, z);
+ }
+ glEnd();
- glPushMatrix();
- glRotatef(helix_rot, 0, 0, 1);
- make_ladder (dc, 0, 0);
- make_helix (dc, 0, 0);
- glRotatef (180, 0, 0, 1);
- make_helix (dc, 0, 0);
- glPopMatrix();
+ if (wire)
+ {
+ glBegin (GL_LINE_LOOP);
+ for (th = 0; th <= M_PI*2; th += facet)
+ {
+ GLfloat x = cos (th);
+ GLfloat y = sin (th);
+ glVertex3f (r1 * x, r1 * y, z);
+ }
+ glEnd();
+ glBegin (GL_LINE_LOOP);
+ for (th = 0; th <= M_PI*2; th += facet)
+ {
+ GLfloat x = cos (th);
+ GLfloat y = sin (th);
+ glVertex3f (r2 * x, r2 * y, z);
+ }
+ glEnd();
+ }
+ }
- dxf_layer++;
- make_gasket (dc, 0);
- dxf_layer++;
- make_frame (dc, 0);
- glPopMatrix();
- dxf_end();
- }
-# endif
+ /* Inside and outside */
- glPushMatrix();
- dc->helix_list = glGenLists (1);
- glNewList (dc->helix_list, GL_COMPILE);
- glRotatef(helix_rot, 0, 0, 1);
- if (do_ladder) dc->polys[0] += make_ladder (dc, 0, 0);
- if (do_helix) dc->polys[0] += make_helix (dc, 0, 0);
- glRotatef(180, 0, 0, 1);
- if (do_helix) dc->polys[0] += make_helix (dc, 0, 0);
- glEndList ();
- glPopMatrix();
+ for (z = -1; z <= 1; z += 2)
+ {
+ glFrontFace (z < 0 ? GL_CCW : GL_CW);
- glPushMatrix();
- dc->helix_list_wire = glGenLists (1);
- glNewList (dc->helix_list_wire, GL_COMPILE);
+ glBegin (wire ? GL_LINES : GL_QUAD_STRIP);
+ for (th = 0; th <= M_PI*2; th += facet)
+ {
+ GLfloat th1 = th + facet;
+ GLfloat x0 = cos (th);
+ GLfloat y0 = sin (th);
+ GLfloat x1 = cos (th1);
+ GLfloat y1 = sin (th1);
+ GLfloat r = z < 0 ? r1 : r2;
+
+ if (z < 0)
+ do_normal (r * x0, r * y0, thick,
+ r * x0, r * y0, -thick,
+ r * x1, r * y1, -thick);
+ else
+ do_normal (r * x1, r * y1, thick,
+ r * x1, r * y1, -thick,
+ r * x0, r * y0, -thick);
+
+ glVertex3f (r * x0, r * y0, thick);
+ glVertex3f (r * x0, r * y0, -thick);
+ }
+ glEnd();
+ }
+
+ glPopMatrix();
+
+ return polys;
+}
+
+
+static int
+draw_codeword_guides (ModeInfo *mi, GLfloat anim_ratio)
+{
+ logo_configuration *dc = &dcs[MI_SCREEN(mi)];
+ int wire = MI_IS_WIREFRAME(mi);
+ int polys = 0;
+
+ int segments = dc->codeword_disc_facets;
+ GLfloat s = dc->codeword_line_width / 2;
+ GLfloat each = 1.0 / dc->codeword_nguides;
+ int i;
+
+ if (wire) segments = 6;
+
+ for (i = 0; i < dc->codeword_nguides; i++)
+ {
+ GLfloat ratio;
+ if (anim_ratio < i*each) ratio = 0;
+ else if (anim_ratio >= (i+1)*each) ratio = 1;
+ else ratio = (anim_ratio - i*each) / each;
+
+ if (ratio <= 0) continue;
+ if (ratio == 0) ratio = 0.001;
+
+ glPushMatrix();
+ glTranslatef (dc->codeword_guides[i].x,
+ dc->codeword_guides[i].y,
+ dc->codeword_guides[i].z);
+
+ glScalef (ratio, ratio, ratio);
+
+ /* If the line width and thickness are pretty close to each other,
+ use spheres. Otherwise use tubes.
+ */
+ if (dc->codeword_thickness < dc->codeword_line_width * 1.3 &&
+ dc->codeword_thickness > dc->codeword_line_width / 1.3)
+ {
+ glScalef (s, s, s);
+ glFrontFace (GL_CCW);
+ polys += unit_sphere (segments, segments, wire);
+ }
+ else
+ {
+ polys += tube (0, 0, -dc->codeword_thickness / 2,
+ 0, 0, dc->codeword_thickness / 2,
+ s, 0, segments, True, True, wire);
+ }
+
+ glPopMatrix();
+ }
+
+ return polys;
+}
+
+
+/* Compute the characters at which the cursor is currently pointing,
+ and render it on the logo.
+ */
+static void
+codeword_text_output (ModeInfo *mi, GLfloat anim_ratio)
+{
+ logo_configuration *dc = &dcs[MI_SCREEN(mi)];
+ int i;
+ int L = strlen (dc->codeword_text);
+ int point = dc->codeword_path_npoints * anim_ratio;
+ Bool hit = False;
+
+ if (dc->anim_state == CODEWORD_BLANK)
+ point = 0;
+
+ for (i = 0; i < L; i++)
+ {
+ if (point >= dc->codeword_text_points[i])
+ dc->codeword_text_out[i] = dc->codeword_text[i];
+ else if (hit)
+ dc->codeword_text_out[i] = 0;
+ else
+ {
+ int steps = dc->codeword_text[i] - 'A' + 1;
+ int last = (i > 0 ? dc->codeword_text_points[i-1] : 0);
+ double ratio = ((point - last) /
+ (double) (dc->codeword_text_points[i] - last));
+ char chr = 'A' + (ratio * steps);
+ if (ratio < 0.1) chr = 0;
+ dc->codeword_text_out[i] = chr;
+ hit = True;
+ }
+ }
+ dc->codeword_text_out[i] = 0;
+
+ if (*dc->codeword_text_out &&
+ !strcmp (dc->codeword_text, "CODEWORD"))
+ {
+ int i;
+ int L2 = strlen (dc->codeword_text_out);
+ GLfloat ss = 0.01;
+ int ascent, descent;
+
+ glPushMatrix();
+ glColor4fv (dc->codeword_color);
+ glRotatef (90, 0, 1, 0);
+ glRotatef (-90, 0, 0, 1);
+
+ for (i = 0; i < L2; i++)
+ {
+ XCharStruct e;
+ char buf[2];
+ glPushMatrix();
+ glRotatef ((i + 0.5) * 360 / 26.0, 0, 0, 1);
+
+# if 0
+ {
+ GLfloat th;
+ glDisable(GL_LIGHTING);
+ glBegin(GL_LINES);
+ glVertex3f(0,0,0);
+ glVertex3f(0,-4,0);
+ glEnd();
+ glBegin(GL_LINE_STRIP);
+ for (th = M_PI * 1.45; th < M_PI * 1.55; th += 0.1)
+ {
+ GLfloat r = 3.85;
+ glVertex3f (r * cos(th), r * sin(th), 0);
+ }
+ glEnd();
+ if (!MI_IS_WIREFRAME(mi)) glEnable(GL_LIGHTING);
+ }
+# endif
+
+ glTranslatef (0, -dc->codeword_spread * (L - 1), 0);
+ glScalef (ss, ss, ss);
+ buf[0] = dc->codeword_text_out[i] + ('a' - 'A');
+ buf[1] = 0;
+ texture_string_metrics (dc->font, buf, &e, &ascent, &descent);
+
+# ifdef HAVE_MOBILE
+ /* #### Magic magic magic WTF... */
+ glScalef (0.5, 0.5, 0.5);
+# endif
+
+ glTranslatef (-e.width * 1.0,
+ -(ascent + descent + e.descent * 2.4), /* #### WTF */
+ 0);
+
+ glScalef (2, 2, 2);
+
+# if 0
+ glDisable(GL_LIGHTING);
+ glBegin(GL_LINE_LOOP);
+ glVertex3f(0, 0, 0);
+ glVertex3f(e.width, 0, 0);
+ glVertex3f(e.width, e.ascent + e.descent, 0);
+ glVertex3f(0, e.ascent + e.descent, 0);
+ glEnd();
+ if (!MI_IS_WIREFRAME(mi)) glEnable(GL_LIGHTING);
+# endif
+
+ glDisable(GL_CULL_FACE); /* tell texfont.c to draw both sides */
+ print_texture_string (dc->font, buf);
+ glEnable(GL_CULL_FACE);
+
+ glPopMatrix();
+ }
+ glPopMatrix();
+ }
+}
+
+
+/* Convert the precomputed path to a thick line of polygons.
+ We could actually precompute all of these polygons too,
+ but it's fast enough.
+ */
+static int
+draw_codeword_path (ModeInfo *mi)
+{
+ logo_configuration *dc = &dcs[MI_SCREEN(mi)];
+ int wire = MI_IS_WIREFRAME(mi);
+ int polys = 0;
+
+ GLfloat anim_ratio = (dc->anim_state == CODEWORD_IN ? dc->anim_ratio :
+ dc->anim_state == CODEWORD_OUT ? 1 - dc->anim_ratio :
+ dc->anim_state == CODEWORD_BLANK ? 0 :
+ 1);
+ int last_anim_point = 0;
+
+ GLfloat width = dc->codeword_line_width / 2;
+ GLfloat thick = dc->codeword_thickness / 2;
+ int i, k;
+ GLfloat j;
+
+ int quad_size = (dc->codeword_path_npoints + 1) * 2;
+ XYZ *quads = (XYZ *) calloc (quad_size, sizeof(*quads));
+ XYZ *norms = (XYZ *) calloc (quad_size, sizeof(*norms));
+ int nquads = 0;
+
+ for (i = 0; i < dc->codeword_path_npoints; i++)
+ {
+ XYZ p1 = dc->codeword_path[i];
+ XYZ p2 = (i < dc->codeword_path_npoints-1
+ ? dc->codeword_path[i+1]
+ : dc->codeword_path[i-1]);
+ XYZ p1a, p1b;
+
+ XYZ n; /* normal of the first line segment */
+ n.x = -(p2.y - p1.y);
+ n.y = (p2.x - p1.x);
+ n.z = 0;
+ normalize (&n);
+
+ if (i == 0)
+ {
+ p1a.x = p1.x - width / 2 * n.x;
+ p1a.y = p1.y - width / 2 * n.y;
+ p1a.z = 0;
+
+ p1b.x = p1.x + width / 2 * n.x;
+ p1b.y = p1.y + width / 2 * n.y;
+ p1b.z = 0;
+ }
+ else if (i == dc->codeword_path_npoints - 1)
+ {
+ p1b.x = p1.x - width / 2 * n.x;
+ p1b.y = p1.y - width / 2 * n.y;
+ p1b.z = 0;
+
+ p1a.x = p1.x + width / 2 * n.x;
+ p1a.y = p1.y + width / 2 * n.y;
+ p1a.z = 0;
+ }
+ else
+ {
+ XYZ p0 = dc->codeword_path[i-1];
+
+ XYZ t, t0, t1; /* tangent of corner between two line segments */
+ XYZ m; /* miter line: normal of tangent */
+ GLfloat d; /* length of miter */
+
+ t0.x = p2.x - p1.x;
+ t0.y = p2.y - p1.y;
+ t0.z = p2.z - p1.z;
+ normalize (&t0);
+
+ t1.x = p1.x - p0.x;
+ t1.y = p1.y - p0.y;
+ t1.z = p1.z - p0.z;
+ normalize (&t1);
+
+ t.x = t0.x + t1.x;
+ t.y = t0.y + t1.y;
+ t.z = t0.z + t1.z;
+ normalize (&t);
+
+ m.x = -t.y;
+ m.y = t.x;
+ m.z = 0;
+
+ /* find length of miter by projecting it on one of the normals */
+ d = width / 2 / dot (m, n);
+
+ p1a.x = p1.x - d * m.x;
+ p1a.y = p1.y - d * m.y;
+ p1a.z = 0;
+
+ p1b.x = p1.x + d * m.x;
+ p1b.y = p1.y + d * m.y;
+ p1b.z = 0;
+ }
+
+ quads[nquads++] = p1a;
+ quads[nquads++] = p1b;
+
+ if (nquads >= quad_size) abort();
+
+ if (i / (double) dc->codeword_path_npoints > anim_ratio)
+ break;
+
+ last_anim_point = i;
+ }
+
+
+ /* Compute normals for each point along the interior edge */
+ for (k = 0; k <= 1; k++)
+ {
+ for (i = k; i < nquads-2; i += 2)
+ {
+ XYZ p1a = quads[i];
+ XYZ p2a = quads[i+2];
+ XYZ p1b = p1a;
+ XYZ p2b = p2a;
+ p1a.z = thick; /* a: top */
+ p1b.z = -thick; /* b: bottom */
+ p2a.z = thick;
+ p2b.z = -thick;
+
+ norms[i] = (k == 0
+ ? calc_normal (p1a, p1b, p2b)
+ : calc_normal (p2a, p2b, p1a));
+ }
+ }
+
+ glPushMatrix();
+ glColor4fv (dc->codeword_color);
+ glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, dc->codeword_color);
+
+# ifdef HAVE_MOBILE /* Make the whole thing fit on the phone screen */
+ {
+ GLfloat size = MI_WIDTH(mi) < MI_HEIGHT(mi) ? MI_WIDTH(mi) : MI_HEIGHT(mi);
+ glScalef (0.9, 0.9, 0.9);
+ if (size <= 768) /* iPad retina / iPhone 6 */
+ glScalef (0.7, 0.7, 0.7);
+ }
+# endif
+
+ codeword_text_output (mi, anim_ratio);
+
+ glRotatef (90, 1, 0, 0);
+ glRotatef (90, 0, 1, 0);
+ glRotatef (-90, 0, 0, 1);
+ glScalef (0.8, 0.8, 0.8);
+
+ glNormal3f (0, 0, -1);
+
+ if (anim_ratio <= 0)
+ {
+ polys += draw_codeword_cap (mi);
+ goto DONE;
+ }
+
+# if 0
+ glColor3f (1, 0, 0);
+ glBegin(GL_LINE_STRIP);
+ for (i = 0; i < dc->codeword_path_npoints; i++)
+ {
+ glVertex3f (dc->codeword_path[i].x,
+ dc->codeword_path[i].y,
+ dc->codeword_path[i].z);
+ polys++;
+ }
+ glEnd();
+ glColor4fv (dc->codeword_color);
+# endif
+
+ if (wire)
+ {
+ int k;
+ GLfloat j;
+ for (i = 0; i <= 1; i++)
+ for (j = -thick; j <= thick; j += thick*2)
+ {
+ glBegin (GL_LINE_STRIP);
+ for (k = i; k < nquads; k += 2)
+ {
+ glVertex3f (quads[k].x, quads[k].y, j);
+ polys++;
+ }
+ glEnd();
+ }
+ }
+
+ /* Top and bottom */
+
+ for (j = -thick; j <= thick; j += thick*2)
+ {
+ if (j < 0)
+ {
+ glNormal3f (0, 0, -1);
+ glFrontFace (GL_CW);
+ }
+ else
+ {
+ glNormal3f (0, 0, 1);
+ glFrontFace (GL_CCW);
+ }
+ glBegin (wire ? GL_LINES : GL_QUAD_STRIP);
+ for (i = 0; i < nquads; i += 2)
+ {
+ glVertex3f (quads[i+1].x, quads[i+1].y, j);
+ glVertex3f (quads[i].x, quads[i].y, j);
+ polys++;
+ }
+ glEnd();
+ }
+
+ /* Edges */
+
+ for (k = 0; k <= 1; k++)
+ {
+ if (k > 0)
+ {
+ glNormal3f (0, 0, -1);
+ glFrontFace (GL_CW);
+ }
+ else
+ {
+ glNormal3f (0, 0, 1);
+ glFrontFace (GL_CCW);
+ }
+
+ glBegin (wire ? GL_LINES : GL_QUADS);
+ for (i = k; i < nquads; i += 2)
+ {
+ XYZ p1a = quads[i];
+ XYZ p2a = (i < nquads-2) ? quads[i+2] : p1a;
+ XYZ p1b = p1a;
+ XYZ p2b = p2a;
+
+ XYZ n1 = norms[i];
+ XYZ n2 = (i < nquads-2) ? norms[i+2] : n1;
+
+ /* If the two normals are very similar, smooth the face.
+ If they are different, it's a sharp turn, and use the
+ same normal for both edges (not quite right, but close).
+ */
+ GLfloat angle = vector_angle (n1.x, n1.y, n1.z,
+ n2.x, n2.y, n2.z);
+ GLfloat pointy = 0.8;
+
+ p1a.z = thick;
+ p1b.z = -thick;
+ p2a.z = thick;
+ p2b.z = -thick;
+
+ glNormal3f (n1.x, n1.y, n1.z);
+ glVertex3f (p1a.x, p1a.y, p1a.z);
+ glVertex3f (p1b.x, p1b.y, p1b.z);
+
+ if (angle < pointy)
+ glNormal3f (n2.x, n2.y, n2.z);
+ glVertex3f (p2b.x, p2b.y, p2b.z);
+ glVertex3f (p2a.x, p2a.y, p2a.z);
+ polys++;
+ }
+ glEnd();
+ }
+
+
+ /* Only draw the guides when the path is almost complete;
+ fade them in and out based on completeness. */
+ {
+ GLfloat size = 0.95;
+ GLfloat r = (anim_ratio > size
+ ? (anim_ratio - size) / (1 - size)
+ : 0);
+ polys += draw_codeword_guides (mi, r);
+ }
+
+
+ /* Draw the start and end caps */
+ {
+ int i;
+ GLfloat x, y, z, x2, y2, z2, X, Y, Z;
+ GLfloat r = dc->codeword_spread * dc->codeword_cap_size;
+
+ i = 0;
+ x = dc->codeword_path[i].x;
+ y = dc->codeword_path[i].y;
+ z = dc->codeword_path[i].z;
+
+ x -= r;
+
+ glPushMatrix();
+ glTranslatef (x, y, z);
+ polys += draw_codeword_cap (mi);
+ glPopMatrix();
+
+ /* end cap */
+
+ i = last_anim_point + 1;
+ if (i > dc->codeword_path_npoints - 1)
+ i = dc->codeword_path_npoints - 1;
+
+ x = dc->codeword_path[i].x;
+ y = dc->codeword_path[i].y;
+ z = dc->codeword_path[i].z;
+
+ i--;
+ x2 = dc->codeword_path[i].x;
+ y2 = dc->codeword_path[i].y;
+ z2 = dc->codeword_path[i].z;
+
+ X = (x2 - x);
+ Y = (y2 - y);
+ Z = (z2 - z);
+
+ glPushMatrix();
+ glTranslatef (x, y, z);
+ glRotatef (-atan2 (X, Y) * (180 / M_PI), 0, 0, 1);
+ glRotatef ( atan2 (Z, sqrt(X*X + Y*Y)) * (180 / M_PI), 1, 0, 0);
+ glTranslatef (0, -r, 0);
+ polys += draw_codeword_cap (mi);
+ glPopMatrix();
+ }
+
+ DONE:
+
+ glPopMatrix();
+
+ free (quads);
+ free (norms);
+
+ return polys;
+}
+
+
+\f
+/* Window management, etc
+ */
+ENTRYPOINT void
+reshape_logo (ModeInfo *mi, int width, int height)
+{
+ GLfloat h = (GLfloat) height / (GLfloat) width;
+
+ glViewport (0, 0, (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, 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); /* #### Why does this change the lighting? */
+ }
+# endif
+
+ glClear(GL_COLOR_BUFFER_BIT);
+}
+
+
+static void
+gl_init (ModeInfo *mi)
+{
+/* logo_configuration *dc = &dcs[MI_SCREEN(mi)]; */
+ int wire = MI_IS_WIREFRAME(mi);
+
+ GLfloat position[] = {0, 0, 0, 0};
+ GLfloat direction[] = {3, -1, -3};
+
+ position[0] = -direction[0];
+ position[1] = -direction[1];
+ position[2] = -direction[2];
+
+ if (!wire)
+ {
+ glLightfv(GL_LIGHT0, GL_POSITION, position);
+ glLightfv(GL_LIGHT0, GL_SPOT_DIRECTION, direction);
+ glShadeModel(GL_SMOOTH);
+ glEnable(GL_NORMALIZE);
+ glEnable(GL_CULL_FACE);
+ glEnable(GL_LIGHTING);
+ glEnable(GL_LIGHT0);
+ glEnable(GL_DEPTH_TEST);
+ }
+}
+
+
+ENTRYPOINT void
+init_logo (ModeInfo *mi)
+{
+ logo_configuration *dc;
+ int do_gasket = get_boolean_resource(mi->dpy, "doGasket", "Boolean");
+ int do_helix = get_boolean_resource(mi->dpy, "doHelix", "Boolean");
+ int do_ladder = (do_helix &&
+ get_boolean_resource(mi->dpy, "doLadder", "Boolean"));
+ int do_frame = get_boolean_resource(mi->dpy, "doFrame", "Boolean");
+ GLfloat helix_rot = 147.0;
+
+ if (!do_gasket && !do_helix)
+ {
+ fprintf (stderr, "%s: no helix or gasket?\n", progname);
+ exit (1);
+ }
+
+ MI_INIT (mi, dcs, NULL);
+
+ dc = &dcs[MI_SCREEN(mi)];
+
+ if ((dc->glx_context = init_GL(mi)) != NULL) {
+ gl_init(mi);
+ reshape_logo (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
+ }
+
+ dc->wall_facets = get_integer_resource(mi->dpy, "wallFacets", "Integer");
+ dc->bar_facets = get_integer_resource(mi->dpy, "barFacets", "Integer");
+ dc->clockwise = get_boolean_resource(mi->dpy, "clockwise", "Boolean");
+ dc->turns = get_float_resource(mi->dpy, "turns", "Float");
+ dc->turn_spacing = get_float_resource(mi->dpy, "turnSpacing", "Float");
+ dc->bar_spacing = get_float_resource(mi->dpy, "barSpacing", "Float");
+ dc->wall_height = get_float_resource(mi->dpy, "wallHeight", "Float");
+ dc->wall_thickness = get_float_resource(mi->dpy, "wallThickness", "Float");
+ dc->bar_thickness = get_float_resource(mi->dpy, "barThickness", "Float");
+ dc->wall_taper = get_float_resource(mi->dpy, "wallTaper", "Float");
+
+ dc->gasket_size = get_float_resource(mi->dpy,"gasketSize", "Float");
+ dc->gasket_depth = get_float_resource(mi->dpy,"gasketDepth", "Float");
+ dc->gasket_thickness = get_float_resource(mi->dpy,"gasketThickness","Float");
+
+ dc->frame_size = get_float_resource(mi->dpy, "frameSize", "Float");
+ dc->frame_depth = get_float_resource(mi->dpy, "frameDepth", "Float");
+ dc->frame_thickness = get_float_resource(mi->dpy, "frameThickness", "Float");
+ dc->triangle_size = get_float_resource(mi->dpy, "triangleSize", "Float");
+
+ dc->speed = get_float_resource(mi->dpy, "speed", "Float");
+ dc->codeword_text = get_string_resource(mi->dpy, "text", "String");
+ dc->codeword_text = codeword_simplify_text (dc->codeword_text);
+ dc->codeword_text_out =
+ calloc (strlen(dc->codeword_text) + 1, sizeof(*dc->codeword_text_out));
+ dc->codeword_text_points =
+ (int *) calloc (strlen(dc->codeword_text) + 1,
+ sizeof(*dc->codeword_text_points));
+
+ dc->codeword_facets = get_integer_resource(mi->dpy, "cwFacets", "Integer");
+ dc->codeword_disc_facets = get_integer_resource(mi->dpy,
+ "cwDiscFacets", "Integer");
+ dc->codeword_spread = get_float_resource(mi->dpy, "cwSpread", "Float");
+ dc->codeword_line_width = get_float_resource(mi->dpy, "cwLineWidth", "Float");
+ dc->codeword_thickness = get_float_resource(mi->dpy, "cwThickness", "Float");
+ dc->codeword_cap_size = get_float_resource(mi->dpy, "cwCapSize", "Float");
+
+ {
+ char *s = get_string_resource (MI_DISPLAY (mi), "mode", "String");
+ if (!s || !*s || !strcasecmp (s, "helix"))
+ dc->mode = HELIX;
+ else if (!strcasecmp (s, "pizza"))
+ dc->mode = PIZZA;
+ else if (!strcasecmp (s, "both"))
+ dc->mode = HELIX_AND_PIZZA;
+ else if (!strcasecmp (s, "codeword"))
+ dc->mode = CODEWORD_IN;
+ else
+ {
+ fprintf (stderr,
+ "%s: mode must be helix, pizza, both or codeword, not \"%s\"\n",
+ progname, s);
+ exit (1);
+ }
+ if (s) free (s);
+
+ dc->anim_state = (dc->mode == HELIX_AND_PIZZA
+ ? ((random() & 1) ? HELIX : PIZZA)
+ : dc->mode);
+ dc->anim_ratio = 0;
+ }
+
+ if (dc->mode == CODEWORD_IN)
+ dc->font = load_texture_font (MI_DISPLAY(mi), "cwFont");
+
+ {
+ XColor xcolor;
+
+ char *color_name =
+ get_string_resource (mi->dpy, "foreground", "Foreground");
+ char *s2;
+ for (s2 = color_name + strlen(color_name) - 1; s2 > color_name; s2--)
+ if (*s2 == ' ' || *s2 == '\t')
+ *s2 = 0;
+ else
+ break;
+
+ if (! XParseColor (MI_DISPLAY(mi), mi->xgwa.colormap, color_name, &xcolor))
+ {
+ fprintf (stderr, "%s: can't parse color %s\n", progname, color_name);
+ exit (1);
+ }
+
+ dc->color[0] = xcolor.red / 65535.0;
+ dc->color[1] = xcolor.green / 65535.0;
+ dc->color[2] = xcolor.blue / 65535.0;
+ dc->color[3] = 1.0;
+
+ color_name = get_string_resource (mi->dpy, "cwForeground", "Foreground");
+ for (s2 = color_name + strlen(color_name) - 1; s2 > color_name; s2--)
+ if (*s2 == ' ' || *s2 == '\t')
+ *s2 = 0;
+ else
+ break;
+
+ if (! XParseColor (MI_DISPLAY(mi), mi->xgwa.colormap, color_name, &xcolor))
+ {
+ fprintf (stderr, "%s: can't parse color %s\n", progname, color_name);
+ exit (1);
+ }
+
+ dc->codeword_color[0] = xcolor.red / 65535.0;
+ dc->codeword_color[1] = xcolor.green / 65535.0;
+ dc->codeword_color[2] = xcolor.blue / 65535.0;
+ dc->codeword_color[3] = 1.0;
+
+ color_name = get_string_resource (mi->dpy, "cwBackground", "Background");
+ for (s2 = color_name + strlen(color_name) - 1; s2 > color_name; s2--)
+ if (*s2 == ' ' || *s2 == '\t')
+ *s2 = 0;
+ else
+ break;
+
+ if (! XParseColor (MI_DISPLAY(mi), mi->xgwa.colormap, color_name, &xcolor))
+ {
+ fprintf (stderr, "%s: can't parse color %s\n", progname, color_name);
+ exit (1);
+ }
+
+ dc->codeword_bg[0] = xcolor.red / 65535.0;
+ dc->codeword_bg[1] = xcolor.green / 65535.0;
+ dc->codeword_bg[2] = xcolor.blue / 65535.0;
+ dc->codeword_bg[3] = 1.0;
+ }
+
+ dc->trackball = gltrackball_init (False);
+
+ dc->gasket_spinnerx.probability = 0.1;
+ dc->gasket_spinnery.probability = 0.1;
+ dc->gasket_spinnerz.probability = 1.0;
+ dc->gasket_spinnerx.easement = 0.08;
+ dc->gasket_spinnery.easement = 0.08;
+ dc->gasket_spinnerz.easement = 0.08;
+
+ dc->helix_spinnerz.probability = 0.6;
+ dc->helix_spinnerz.easement = 0.2;
+
+ dc->pizza_spinnerz.probability = 0.6;
+ dc->pizza_spinnery.probability = 0.6;
+ dc->pizza_spinnerz.easement = 0.2;
+ dc->pizza_spinnery.easement = 0.2;
+
+ dc->frame_spinner.probability = 5.0;
+ dc->frame_spinner.easement = 0.2;
+
+ dc->scene_spinnerx.probability = 0.1;
+ dc->scene_spinnery.probability = 0.0;
+ dc->scene_spinnerx.easement = 0.1;
+ dc->scene_spinnery.easement = 0.1;
+
+ if (dc->mode == CODEWORD_IN)
+ {
+ double tilt_speed = 0.003;
+ dc->scene_rot = make_rotator (0, 0, 0, 0, tilt_speed, True);
+ }
+
+ /* start the frame off-screen */
+ dc->frame_spinner.spinning_p = True;
+ dc->frame_spinner.position = 0.3;
+ dc->frame_spinner.speed = 0.001;
+
+ if (dc->speed > 0) /* start off with the gasket in motion */
+ {
+ dc->gasket_spinnerz.spinning_p = True;
+ dc->gasket_spinnerz.speed = (0.002
+ * ((random() & 1) ? 1 : -1)
+ * dc->speed);
+ }
+
+# ifdef DXF_OUTPUT_HACK
+ {
+# if 0
+ dc->frame_depth = dc->gasket_depth;
+ dxf_layer = 1;
+ dxf_color = 3;
+ dxf_start();
+ glPushMatrix();
+ glRotatef(90, 1, 0, 0);
+ glRotatef(90, 0, 0, 1);
+ make_pizza (dc, 0, 0);
+
+ glPushMatrix();
+ glRotatef(helix_rot, 0, 0, 1);
+ make_ladder (dc, 0, 0);
+ make_helix (dc, 0, 0);
+ glRotatef (180, 0, 0, 1);
+ make_helix (dc, 0, 0);
+ glPopMatrix();
+
+ dxf_layer++;
+ make_gasket (dc, 0);
+ dxf_layer++;
+ make_frame (dc, 0);
+ glPopMatrix();
+ dxf_end();
+# else
+ dxf_start();
+ glPushMatrix();
+ glRotatef(90, 1, 0, 0);
+ glRotatef(90, 0, 0, 1);
+ dc->anim_state = CODEWORD;
+ make_codeword_path (mi);
+ draw_codeword_path (mi);
+ glPopMatrix();
+ dxf_end();
+# endif
+ }
+# endif
+
+ glPushMatrix();
+ dc->helix_list = glGenLists (1);
+ glNewList (dc->helix_list, GL_COMPILE);
+ glRotatef(helix_rot, 0, 0, 1);
+ if (do_ladder) dc->polys[0] += make_ladder (dc, 0, 0);
+ if (do_helix) dc->polys[0] += make_helix (dc, 0, 0);
+ glRotatef(180, 0, 0, 1);
+ if (do_helix) dc->polys[0] += make_helix (dc, 0, 0);
+ glEndList ();
+ glPopMatrix();
+
+ glPushMatrix();
+ dc->helix_list_wire = glGenLists (1);
+ glNewList (dc->helix_list_wire, GL_COMPILE);
/* glRotatef(helix_rot, 0, 0, 1); wtf? */
if (do_ladder) dc->polys[1] += make_ladder (dc, 1, 1);
if (do_helix) dc->polys[1] += make_helix (dc, 1, 1);
if (do_frame) dc->polys[6] += make_frame (dc, 1);
glEndList ();
+ make_codeword_path (mi);
+
+
/* When drawing both solid and wireframe objects,
make sure the wireframe actually shows up! */
glEnable (GL_POLYGON_OFFSET_FILL);
{
logo_configuration *dc = &dcs[MI_SCREEN(mi)];
- if (event->xany.type == ButtonPress &&
- event->xbutton.button == Button1)
- {
- dc->button_down_p = True;
- gltrackball_start (dc->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)
- {
- dc->button_down_p = False;
- return True;
- }
- else if (event->xany.type == ButtonPress &&
- (event->xbutton.button == Button4 ||
- event->xbutton.button == Button5 ||
- event->xbutton.button == Button6 ||
- event->xbutton.button == Button7))
- {
- gltrackball_mousewheel (dc->trackball, event->xbutton.button, 10,
- !!event->xbutton.state);
- return True;
- }
- else if (event->xany.type == MotionNotify &&
- dc->button_down_p)
+ if (gltrackball_event_handler (event, dc->trackball,
+ MI_WIDTH (mi), MI_HEIGHT (mi),
+ &dc->button_down_p))
+ return True;
+ else if (event->xany.type == KeyPress)
{
- gltrackball_track (dc->trackball,
- event->xmotion.x, event->xmotion.y,
- MI_WIDTH (mi), MI_HEIGHT (mi));
- return True;
+ KeySym keysym;
+ char c = 0;
+ XLookupString (&event->xkey, &c, 1, &keysym, 0);
+ if (c == ' ' || c == '\t')
+ {
+ switch (dc->anim_state) {
+ case HELIX:
+ dc->anim_state = HELIX_OUT;
+ dc->anim_ratio = 0.0;
+ return True;
+ case PIZZA:
+ dc->anim_state = PIZZA_OUT;
+ dc->anim_ratio = 0.0;
+ return True;
+ case CODEWORD:
+ dc->anim_state = CODEWORD_OUT;
+ dc->anim_ratio = 0.0;
+ return True;
+ default:
+ break;
+ }
+ }
}
return False;
}
+static GLfloat
+spinner_ease (GLfloat x)
+{
+ /* Smooth curve up, ending at slope = 1. */
+ return cos ((x/2 + 1) * M_PI) + 1;
+}
+
+
static void
tick_spinner (ModeInfo *mi, spinner *s)
{
if (s->spinning_p)
{
s->position += s->speed;
- if (s->position >= 1.0 || s->position <= -1.0)
-
+ if (s->position >= 1.0 || s->position <= 0.0)
{
s->position = 0;
+ s->position_eased = 0;
s->spinning_p = False;
}
+ else if (s->easement > 0 && s->position <= s->easement)
+ s->position_eased = (s->easement *
+ spinner_ease (s->position / s->easement));
+ else if (s->easement > 0 && s->position >= 1-s->easement)
+ s->position_eased = (1 - s->easement *
+ spinner_ease ((1 - s->position) / s->easement));
+ else
+ s->position_eased = s->position;
}
else if (s->probability &&
(random() % (int) (PROBABILITY_SCALE / s->probability)) == 0)
s->speed = dc->speed * (frand(ss/3) + frand(ss/3) + frand(ss/3));
} while (s->speed <= 0);
if (random() & 1)
- s->speed = -s->speed;
+ {
+ s->speed = -s->speed;
+ s->position = 1.0;
+ }
}
}
GLfloat specular[] = {0.8, 0.8, 0.8, 1.0};
GLfloat shininess = 50.0;
Bool pizza_p;
+ Bool codeword_p;
if (!dc->glx_context)
return;
switch (dc->anim_state)
{
case HELIX:
- if (dc->mode == BOTH &&
+ if (dc->mode == HELIX_AND_PIZZA &&
(random() % (int) (PROBABILITY_SCALE / 0.2)) == 0)
dc->anim_state = HELIX_OUT;
break;
break;
case PIZZA:
- if (dc->mode == BOTH &&
+ if (dc->mode == HELIX_AND_PIZZA &&
(random() % (int) (PROBABILITY_SCALE / 0.2)) == 0)
dc->anim_state = PIZZA_OUT;
break;
}
break;
+
+ case CODEWORD_IN:
+ dc->scene_spinnerx.probability = 0.2;
+ dc->scene_spinnery.probability = 0.05;
+ if (! dc->button_down_p)
+ dc->anim_ratio += 0.004 * dc->speed;
+ if (dc->anim_ratio >= 1.0)
+ {
+ dc->anim_state = CODEWORD;
+ dc->anim_ratio = frand (0.5);
+ }
+ break;
+
+ case CODEWORD:
+ dc->scene_spinnerx.probability = 0.5;
+ dc->scene_spinnery.probability = 0.2;
+ if (! dc->button_down_p)
+ dc->anim_ratio += (0.0005 + frand(0.002)) * dc->speed;
+ if (dc->anim_ratio >= 1.0)
+ {
+ dc->anim_ratio = 0.0;
+ dc->anim_state = CODEWORD_OUT;
+ }
+ break;
+
+ case CODEWORD_OUT:
+ dc->scene_spinnerx.probability = 0;
+ dc->scene_spinnery.probability = 0;
+ if (! dc->button_down_p)
+ dc->anim_ratio += 0.02 * dc->speed;
+ if (dc->anim_ratio >= 1.0)
+ {
+ dc->anim_ratio = 0.0;
+ dc->anim_state = CODEWORD_BLANK;
+ }
+ break;
+
+ case CODEWORD_BLANK:
+ dc->scene_spinnerx.probability = 0;
+ dc->scene_spinnery.probability = 0;
+ if (! dc->button_down_p)
+ dc->anim_ratio += 0.01 * dc->speed;
+ if (dc->anim_ratio >= 1.0)
+ {
+ dc->anim_ratio = 0.0;
+ dc->anim_state = CODEWORD_IN;
+ }
+ break;
+
default:
abort();
break;
dc->anim_state == PIZZA_IN ||
dc->anim_state == PIZZA_OUT);
+ codeword_p = (dc->anim_state == CODEWORD ||
+ dc->anim_state == CODEWORD_IN ||
+ dc->anim_state == CODEWORD_OUT ||
+ dc->anim_state == CODEWORD_BLANK);
+
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix ();
glRotatef(current_device_rotation(), 0, 0, 1);
{
- GLfloat scale = 0;
- glScalef(3, 3, 3);
- glScalef (0.6, 0.6, 0.6);
+ GLfloat scale = 1.8;
+ glScalef(scale, scale, scale);
glColor3f(dc->color[0], dc->color[1], dc->color[2]);
- /* Draw frame before trackball rotation */
- {
- GLfloat p = (dc->frame_spinner.position >= 0
- ? dc->frame_spinner.position
- : -dc->frame_spinner.position);
- GLfloat size = (p > 0.5 ? 1-p : p);
- scale = 1 + (size * 10);
- glPushMatrix();
- /* gltrackball_rotate (dc->trackball); */
- glRotatef(90, 1, 0, 0);
- glRotatef(90, 0, 0, 1);
- glScalef (1, scale, scale);
- if (wire)
- {
- glDisable (GL_LIGHTING);
- glCallList (dc->frame_list_wire);
- mi->polygon_count += dc->polys[6];
- }
- else if (dc->wire_overlay != 0)
- {
- glCallList (dc->frame_list);
- glDisable (GL_LIGHTING);
- glColor3fv (dc->color);
- glCallList (dc->frame_list_wire);
- mi->polygon_count += dc->polys[6];
- if (!wire) glEnable (GL_LIGHTING);
- }
- else
- {
- glCallList (dc->frame_list);
- mi->polygon_count += dc->polys[5];
- }
- glPopMatrix();
- }
+ /* Draw frame before trackball rotation */
+ if (! codeword_p)
+ {
+ GLfloat p = (dc->frame_spinner.position_eased >= 0
+ ? dc->frame_spinner.position_eased
+ : -dc->frame_spinner.position_eased);
+ GLfloat size = (p > 0.5 ? 1-p : p);
+ scale = 1 + (size * 10);
+ glPushMatrix();
+ /* gltrackball_rotate (dc->trackball); */
+ glRotatef(90, 1, 0, 0);
+ glRotatef(90, 0, 0, 1);
+
+ glScalef (1, scale, scale);
+ if (wire)
+ {
+ glDisable (GL_LIGHTING);
+ glCallList (dc->frame_list_wire);
+ mi->polygon_count += dc->polys[6];
+ }
+ else if (dc->wire_overlay != 0)
+ {
+ glCallList (dc->frame_list);
+ glDisable (GL_LIGHTING);
+ glColor3fv (dc->color);
+ glCallList (dc->frame_list_wire);
+ mi->polygon_count += dc->polys[6];
+ if (!wire) glEnable (GL_LIGHTING);
+ }
+ else
+ {
+ glCallList (dc->frame_list);
+ mi->polygon_count += dc->polys[5];
+ }
+ glPopMatrix();
+ }
gltrackball_rotate (dc->trackball);
glRotatef(90, 1, 0, 0);
glRotatef(90, 0, 0, 1);
- glRotatef (360 * sin (M_PI/2 * dc->scene_spinnerx.position), 0, 1, 0);
- glRotatef (360 * sin (M_PI/2 * dc->scene_spinnery.position), 0, 0, 1);
-
- glPushMatrix();
- {
- glRotatef (360 * sin (M_PI/2 * dc->gasket_spinnerx.position), 0, 1, 0);
- glRotatef (360 * sin (M_PI/2 * dc->gasket_spinnery.position), 0, 0, 1);
- glRotatef (360 * sin (M_PI/2 * dc->gasket_spinnerz.position), 1, 0, 0);
-
- memcpy (gcolor, dc->color, sizeof (dc->color));
- if (dc->wire_overlay != 0)
- {
- gcolor[0] = gcolor[1] = gcolor[2] = 0;
- specular[0] = specular[1] = specular[2] = 0;
- shininess = 0;
- }
- glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, gcolor);
- glMaterialfv (GL_FRONT_AND_BACK, GL_SPECULAR, specular);
- glMaterialf (GL_FRONT_AND_BACK, GL_SHININESS, shininess);
+ if (! codeword_p)
+ {
+ glRotatef (360 * dc->scene_spinnerx.position_eased, 0, 1, 0);
+ glRotatef (360 * dc->scene_spinnery.position_eased, 0, 0, 1);
- if (wire)
- {
- glDisable (GL_LIGHTING);
- glCallList (dc->gasket_list_wire);
- mi->polygon_count += dc->polys[4];
- }
- else if (dc->wire_overlay != 0)
- {
- glCallList (dc->gasket_list);
- glDisable (GL_LIGHTING);
- glColor3fv (dc->color);
- glCallList (dc->gasket_list_wire);
- mi->polygon_count += dc->polys[4];
- if (!wire) glEnable (GL_LIGHTING);
- glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, gcolor);
- }
- else
- {
- glCallList (dc->gasket_list);
- mi->polygon_count += dc->polys[3];
- }
- }
- glPopMatrix();
+ glPushMatrix();
- if (pizza_p)
- {
- glRotatef (360 * sin (M_PI/2 * dc->pizza_spinnery.position), 1, 0, 0);
- glRotatef (360 * sin (M_PI/2 * dc->pizza_spinnerz.position), 0, 0, 1);
- }
- else
- {
- glRotatef (360 * sin (M_PI/2 * dc->helix_spinnerz.position), 0, 0, 1);
- }
+ glRotatef (360 * dc->gasket_spinnerx.position_eased, 0, 1, 0);
+ glRotatef (360 * dc->gasket_spinnery.position_eased, 0, 0, 1);
+ glRotatef (360 * dc->gasket_spinnerz.position_eased, 1, 0, 0);
- scale = ((dc->anim_state == PIZZA_IN || dc->anim_state == HELIX_IN)
- ? dc->anim_ratio
- : ((dc->anim_state == PIZZA_OUT || dc->anim_state == HELIX_OUT)
- ? 1.0 - dc->anim_ratio
- : 1.0));
- if (scale <= 0) scale = 0.001;
- glScalef (scale, scale, scale);
+ memcpy (gcolor, dc->color, sizeof (dc->color));
+ if (dc->wire_overlay != 0)
+ {
+ gcolor[0] = gcolor[1] = gcolor[2] = 0;
+ specular[0] = specular[1] = specular[2] = 0;
+ shininess = 0;
+ }
+ glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, gcolor);
+ glMaterialfv (GL_FRONT_AND_BACK, GL_SPECULAR, specular);
+ glMaterialf (GL_FRONT_AND_BACK, GL_SHININESS, shininess);
- if (wire)
- {
- glDisable (GL_LIGHTING);
- if (pizza_p)
- glCallList (dc->pizza_list_wire);
+ if (wire)
+ {
+ glDisable (GL_LIGHTING);
+ glCallList (dc->gasket_list_wire);
+ mi->polygon_count += dc->polys[4];
+ }
+ else if (dc->wire_overlay != 0)
+ {
+ glCallList (dc->gasket_list);
+ glDisable (GL_LIGHTING);
+ glColor3fv (dc->color);
+ glCallList (dc->gasket_list_wire);
+ mi->polygon_count += dc->polys[4];
+ if (!wire) glEnable (GL_LIGHTING);
+ glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, gcolor);
+ }
else
- glCallList (dc->helix_list_wire);
- mi->polygon_count += dc->polys[1];
- }
- else if (dc->wire_overlay != 0)
- {
+ {
+ glCallList (dc->gasket_list);
+ mi->polygon_count += dc->polys[3];
+ }
+ glPopMatrix();
+
if (pizza_p)
- glCallList (dc->pizza_list_facetted);
+ {
+ glRotatef (360 * dc->pizza_spinnery.position_eased, 1, 0, 0);
+ glRotatef (360 * dc->pizza_spinnerz.position_eased, 0, 0, 1);
+ }
else
- glCallList (dc->helix_list_facetted);
+ {
+ glRotatef (360 * dc->helix_spinnerz.position_eased, 0, 0, 1);
+ }
- glDisable (GL_LIGHTING);
- glColor3fv (dc->color);
+ scale = ((dc->anim_state == PIZZA_IN || dc->anim_state == HELIX_IN)
+ ? dc->anim_ratio
+ : ((dc->anim_state == PIZZA_OUT || dc->anim_state == HELIX_OUT)
+ ? 1.0 - dc->anim_ratio
+ : 1.0));
+ if (scale <= 0) scale = 0.001;
+ glScalef (scale, scale, scale);
- if (pizza_p)
- glCallList (dc->pizza_list_wire);
- else
- glCallList (dc->helix_list_wire);
+ if (wire)
+ {
+ glDisable (GL_LIGHTING);
+ if (pizza_p)
+ glCallList (dc->pizza_list_wire);
+ else
+ glCallList (dc->helix_list_wire);
+ mi->polygon_count += dc->polys[1];
+ }
+ else if (dc->wire_overlay != 0)
+ {
+ if (pizza_p)
+ glCallList (dc->pizza_list_facetted);
+ else
+ glCallList (dc->helix_list_facetted);
+
+ glDisable (GL_LIGHTING);
+ glColor3fv (dc->color);
+
+ if (pizza_p)
+ glCallList (dc->pizza_list_wire);
+ else
+ glCallList (dc->helix_list_wire);
- mi->polygon_count += dc->polys[2];
- if (!wire) glEnable (GL_LIGHTING);
+ mi->polygon_count += dc->polys[2];
+ if (!wire) glEnable (GL_LIGHTING);
+ }
+ else
+ {
+ if (pizza_p)
+ glCallList (dc->pizza_list);
+ else
+ glCallList (dc->helix_list);
+ mi->polygon_count += dc->polys[0];
+ }
}
- else
+ else /* codeword_p */
{
- if (pizza_p)
- glCallList (dc->pizza_list);
- else
- glCallList (dc->helix_list);
- mi->polygon_count += dc->polys[0];
+# if 0
+ double max = 70; /* face front */
+ double x, y, z;
+ get_position (dc->scene_rot, &x, &y, &z, !dc->button_down_p);
+ glRotatef (max/2 - x*max, 0, 0, 1);
+ glRotatef (max/2 - y*max, 0, 1, 0);
+ /* glRotatef (max/2 - z*max, 1, 0, 0); */
+# else
+ glRotatef (360 * dc->scene_spinnerx.position_eased, 0, 1, 0);
+ glRotatef (360 * dc->scene_spinnery.position_eased, 0, 0, 1);
+# endif
+
+ glClearColor (dc->codeword_bg[0],
+ dc->codeword_bg[1],
+ dc->codeword_bg[2],
+ dc->codeword_bg[3]);
+ mi->polygon_count += draw_codeword_path (mi);
}
}
glPopMatrix();
projects / xscreensaver / blobdiff