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-rw-r--r--hacks/glx/cubestack.c470
1 files changed, 0 insertions, 470 deletions
diff --git a/hacks/glx/cubestack.c b/hacks/glx/cubestack.c
deleted file mode 100644
index ef62ab4..0000000
--- a/hacks/glx/cubestack.c
+++ /dev/null
@@ -1,470 +0,0 @@
-/* cubestack, Copyright (c) 2016 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" \
- "*showFPS: False \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_WANDER "True"
-#define DEF_SPEED "1.0"
-#define DEF_THICKNESS "0.13"
-#define DEF_OPACITY "0.7"
-
-typedef struct {
- GLXContext *glx_context;
- rotator *rot;
- trackball_state *trackball;
- Bool button_down_p;
- GLfloat state;
- GLfloat r;
- int length;
- int ncolors;
- XColor *colors;
- int ccolor;
-} cube_configuration;
-
-static cube_configuration *bps = NULL;
-
-static GLfloat speed;
-static GLfloat thickness;
-static GLfloat opacity;
-static Bool do_wander;
-
-static XrmOptionDescRec opts[] = {
- { "-wander", ".wander", XrmoptionNoArg, "True" },
- { "+wander", ".wander", XrmoptionNoArg, "False" },
- { "-speed", ".speed", XrmoptionSepArg, 0 },
- { "-thickness", ".thickness", XrmoptionSepArg, 0 },
- { "-opacity", ".opacity", XrmoptionSepArg, 0 },
-};
-
-static argtype vars[] = {
- {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool},
- {&speed, "speed", "Speed", DEF_SPEED, t_Float},
- {&thickness, "thickness", "Thickness", DEF_THICKNESS, t_Float},
- {&opacity, "opacity", "Opacity", DEF_OPACITY, t_Float},
-};
-
-ENTRYPOINT ModeSpecOpt cube_opts = {countof(opts), opts, countof(vars), vars, NULL};
-
-
-static int
-draw_strut (ModeInfo *mi)
-{
- int wire = MI_IS_WIREFRAME(mi);
- int polys = 0;
- GLfloat h;
-
- glPushMatrix();
- glFrontFace (GL_CCW);
- glNormal3f (0, 0, -1);
- glTranslatef (-0.5, -0.5, 0);
- glBegin (wire ? GL_LINE_LOOP : GL_TRIANGLE_FAN);
- glVertex3f (0, 0, 0);
- glVertex3f (1, 0, 0);
- glVertex3f (1 - thickness, thickness, 0);
- glVertex3f (thickness, thickness, 0);
- glEnd();
- polys += 2;
-
- h = 0.5 - thickness;
- if (h >= 0.25)
- {
- glBegin (wire ? GL_LINE_LOOP : GL_TRIANGLE_FAN);
- glVertex3f (0.5, 0.5, 0);
- glVertex3f (0.5 - thickness/2, 0.5 - thickness/2, 0);
- glVertex3f (0.5 - thickness/2, 0.5 - h/2, 0);
- glVertex3f (0.5 + thickness/2, 0.5 - h/2, 0);
- glVertex3f (0.5 + thickness/2, 0.5 - thickness/2, 0);
- glEnd();
- polys += 3;
- }
-
- glPopMatrix();
-
- return polys;
-}
-
-
-static int
-draw_face (ModeInfo *mi)
-{
- int i;
- int polys = 0;
- for (i = 0; i < 4; i++)
- {
- polys += draw_strut (mi);
- glRotatef (90, 0, 0, 1);
- }
- return polys;
-}
-
-
-static GLfloat
-ease_fn (GLfloat r)
-{
- return cos ((r/2 + 1) * M_PI) + 1; /* Smooth curve up, end at slope 1. */
-}
-
-
-static GLfloat
-ease_ratio (GLfloat r)
-{
- GLfloat ease = 0.5;
- if (r <= 0) return 0;
- else if (r >= 1) return 1;
- else if (r <= ease) return ease * ease_fn (r / ease);
- else if (r > 1-ease) return 1 - ease * ease_fn ((1 - r) / ease);
- else return r;
-}
-
-
-static int
-draw_cube_1 (ModeInfo *mi, GLfloat state, GLfloat color[4], Bool bottom_p)
-{
- int polys = 0;
- int istate = state;
- GLfloat r = state - istate;
- GLfloat a = color[3];
-
- r = ease_ratio (r);
-
-# define COLORIZE(R) \
- color[3] = a * R; \
- glMaterialfv (GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, color); \
- glColor4fv (color)
-
- if (bottom_p)
- {
- GLfloat r2 = (state < 0 ? 1 + state : 1);
- COLORIZE(r2);
- polys += draw_face (mi); /* Bottom */
- }
-
- if (state >= 0) /* Left */
- {
- GLfloat r2 = (istate == 0 ? r : 1);
- COLORIZE(r2);
- glPushMatrix();
- glTranslatef (-0.5, 0.5, 0);
- glRotatef (-r2 * 90, 0, 1, 0);
- glTranslatef (0.5, -0.5, 0);
- polys += draw_face (mi);
- glPopMatrix();
- }
-
- if (state >= 1) /* Back */
- {
- GLfloat r2 = (istate == 1 ? r : 1);
- COLORIZE(r2);
- glPushMatrix();
- glTranslatef (-0.5, 0.5, 0);
- glRotatef ( 90, 0, 1, 0);
- glRotatef (-90, 0, 0, 1);
- glRotatef (-r2 * 90, 0, 1, 0);
- glTranslatef (0.5, -0.5, 0);
- polys += draw_face (mi);
- glPopMatrix();
- }
-
- if (state >= 2) /* Right */
- {
- GLfloat r2 = (istate == 2 ? r : 1);
- COLORIZE(r2);
- glPushMatrix();
- glTranslatef (0.5, 0.5, 0);
- glRotatef ( 90, 0, 1, 0);
- glRotatef (-90, 0, 0, 1);
- glRotatef (-90, 0, 1, 0);
- glRotatef (-r2 * 90, 0, 1, 0);
- glTranslatef (-0.5, -0.5, 0);
- polys += draw_face (mi);
- glPopMatrix();
- }
-
- if (state >= 3) /* Front */
- {
- GLfloat r2 = (istate == 3 ? r : 1);
- COLORIZE(r2);
- glPushMatrix();
- glTranslatef (0.5, 0.5, 0);
- glRotatef ( 90, 0, 1, 0);
- glRotatef (-90, 0, 0, 1);
- glRotatef (-180, 0, 1, 0);
- glTranslatef (-1, 0, 0);
- glRotatef (-r2 * 90, 0, 1, 0);
- glTranslatef (0.5, -0.5, 0);
- polys += draw_face (mi);
- glPopMatrix();
- }
-
- if (state >= 4) /* Top */
- {
- GLfloat r2 = (istate == 4 ? r : 1);
- COLORIZE(r2);
- glPushMatrix();
- glTranslatef (0, 0, 1);
- glRotatef (-90, 0, 0, 1);
- glTranslatef (0.5, 0.5, 0);
- glRotatef (-90, 0, 1, 0);
- glRotatef (r2 * 90, 0, 1, 0);
- glTranslatef (-0.5, -0.5, 0);
- polys += draw_face (mi);
- glPopMatrix();
- }
-
- return polys;
-}
-
-
-static int
-draw_cubes (ModeInfo *mi)
-{
- cube_configuration *bp = &bps[MI_SCREEN(mi)];
- int polys = 0;
- GLfloat z = bp->state / 6;
- int i;
- GLfloat c[4];
- int c0 = bp->ccolor;
- GLfloat alpha = opacity;
-
- glPushMatrix();
- glTranslatef (0, 0, -1.5 - z);
-
- glTranslatef (0, 0, -bp->length);
- for (i = bp->length-1; i >= 0; i--)
- {
- int c1 = c0 - i - 1;
- if (c1 < 0) c1 += bp->ncolors;
- c[0] = bp->colors[c1].red / 65536.0;
- c[1] = bp->colors[c1].green / 65536.0;
- c[2] = bp->colors[c1].blue / 65536.0;
- c[3] = alpha;
-
- glTranslatef (0, 0, 1);
- polys += draw_cube_1 (mi, 5, c, i == bp->length - 1);
- }
-
- c[0] = bp->colors[c0].red / 65536.0;
- c[1] = bp->colors[c0].green / 65536.0;
- c[2] = bp->colors[c0].blue / 65536.0;
- c[3] = alpha;
- glTranslatef (0, 0, 1);
- polys += draw_cube_1 (mi, bp->state, c, bp->length == 0);
-
- glPopMatrix();
-
- return polys;
-}
-
-
-/* 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;
- 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, 30.0,
- 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);
-}
-
-
-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 == ' ' || c == '\t')
- {
- bp->ncolors = 32;
- make_smooth_colormap (0, 0, 0,
- bp->colors, &bp->ncolors,
- False, 0, False);
- return True;
- }
- }
-
-
- return False;
-}
-
-
-ENTRYPOINT void
-init_cube (ModeInfo *mi)
-{
- cube_configuration *bp;
- int wire = MI_IS_WIREFRAME(mi);
-
- MI_INIT (mi, bps);
-
- bp = &bps[MI_SCREEN(mi)];
-
- bp->glx_context = init_GL(mi);
-
- reshape_cube (mi, MI_WIDTH(mi), MI_HEIGHT(mi));
-
- if (!wire)
- {
- glDisable (GL_LIGHTING);
- glEnable(GL_DEPTH_TEST);
- glShadeModel (GL_SMOOTH);
- glEnable (GL_NORMALIZE);
- glDisable (GL_CULL_FACE);
- glEnable (GL_BLEND);
- glDisable (GL_DEPTH_TEST);
- glBlendFunc (GL_SRC_ALPHA, GL_ONE);
- }
-
- {
- double wander_speed = 0.005;
- bp->rot = make_rotator (0, 0, 0, 0,
- do_wander ? wander_speed : 0,
- False);
- bp->trackball = gltrackball_init (True);
- }
-
- if (thickness > 0.5)
- thickness = 0.5;
- if (thickness < 0.001)
- thickness = 0.001;
-
- bp->ncolors = 32;
- bp->colors = (XColor *) calloc(bp->ncolors, sizeof(XColor));
- make_smooth_colormap (0, 0, 0,
- bp->colors, &bp->ncolors,
- False, 0, False);
- bp->state = -1;
-}
-
-
-ENTRYPOINT void
-draw_cube (ModeInfo *mi)
-{
- cube_configuration *bp = &bps[MI_SCREEN(mi)];
- Display *dpy = MI_DISPLAY(mi);
- Window window = MI_WINDOW(mi);
-
- if (!bp->glx_context)
- return;
-
- glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
-
- glPushMatrix ();
-
- {
- double x, y, z;
- get_position (bp->rot, &x, &y, &z, !bp->button_down_p);
- glTranslatef((x - 0.5) * 4,
- (y - 0.5) * 4,
- (z - 0.5) * 2);
-
- gltrackball_rotate (bp->trackball);
- }
-
- mi->polygon_count = 0;
-
- glScalef (6, 6, 6);
- glRotatef (-45, 1, 0, 0);
- glRotatef (20, 0, 0, 1);
- glRotatef (bp->r, 0, 0, 1);
-
- mi->polygon_count = draw_cubes (mi);
- glPopMatrix ();
-
- if (!bp->button_down_p)
- {
- int max = 6;
- bp->state += speed * 0.015;
- bp->r += speed * 0.05;
- while (bp->r > 360)
- bp->r -= 360;
- while (bp->state > max)
- {
- bp->state -= max;
- bp->length++;
- bp->ccolor++;
- if (bp->ccolor > bp->ncolors)
- bp->ccolor = 0;
- }
-
- if (bp->length > 20)
- bp->length = 20;
- }
-
- if (mi->fps_p) do_fps (mi);
- glFinish();
-
- glXSwapBuffers(dpy, window);
-}
-
-
-ENTRYPOINT void
-free_cube (ModeInfo *mi)
-{
- cube_configuration *bp = &bps[MI_SCREEN(mi)];
- if (!bp->glx_context) return;
- glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *bp->glx_context);
- if (bp->trackball) gltrackball_free (bp->trackball);
- if (bp->rot) free_rotator (bp->rot);
- if (bp->colors) free (bp->colors);
-}
-
-XSCREENSAVER_MODULE_2 ("CubeStack", cubestack, cube)
-
-#endif /* USE_GL */
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