X-Git-Url: http://git.hungrycats.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=hacks%2Fglx%2Fsierpinski3d.c;h=7b74d5a58aff732bafbb9e3c72cfcecdec983982;hb=6afd6db0ae9396cd7ff897ade597cd5483f49b0e;hp=1517d271d135139c5d34cabbdcf67ac51f2b2547;hpb=3f9592851ce4ed76a9979bfdd6ec7dc5c457e183;p=xscreensaver diff --git a/hacks/glx/sierpinski3d.c b/hacks/glx/sierpinski3d.c index 1517d271..7b74d5a5 100644 --- a/hacks/glx/sierpinski3d.c +++ b/hacks/glx/sierpinski3d.c @@ -1,9 +1,8 @@ /* -*- Mode: C; tab-width: 4 -*- */ /* Sierpinski3D --- 3D sierpinski gasket */ -#if !defined( lint ) && !defined( SABER ) +#if 0 static const char sccsid[] = "@(#)sierpinski3D.c 00.01 99/11/04 xlockmore"; - #endif /*- @@ -27,24 +26,12 @@ static const char sccsid[] = "@(#)sierpinski3D.c 00.01 99/11/04 xlockmore"; * random scattering of points. */ -/*- - * due to a Bug/feature in VMS X11/Intrinsic.h has to be placed before xlock. - * otherwise caddr_t is not defined correctly - */ - -#include - #ifdef STANDALONE -# define PROGCLASS "Sierpinski3D" -# define HACK_INIT init_gasket -# define HACK_DRAW draw_gasket -# define HACK_RESHAPE reshape_gasket -# define gasket_opts xlockmore_opts # define DEFAULTS "*delay: 20000 \n" \ - "*maxDepth: 5 \n" \ - "*speed: 150 \n" \ "*showFPS: False \n" \ - "*wireframe: False \n" + "*wireframe: False \n" \ + +# define refresh_gasket 0 # include "xlockmore.h" /* from the xscreensaver distribution */ #else /* !STANDALONE */ # include "xlock.h" /* from the xlockmore distribution */ @@ -52,23 +39,40 @@ static const char sccsid[] = "@(#)sierpinski3D.c 00.01 99/11/04 xlockmore"; #ifdef USE_GL +#define DEF_SPIN "True" +#define DEF_WANDER "True" +#define DEF_SPEED "150" +#define DEF_MAX_DEPTH "5" + +#include "rotator.h" +#include "gltrackball.h" + #undef countof #define countof(x) (sizeof((x))/sizeof((*x))) static int max_depth; static int speed; +static Bool do_spin; +static Bool do_wander; + static XrmOptionDescRec opts[] = { - {"-depth", ".sierpinski3d.maxDepth", XrmoptionSepArg, (caddr_t) 0 }, - {"-speed", ".sierpinski3d.speed", XrmoptionSepArg, (caddr_t) 0 } + {"-depth", ".sierpinski3d.maxDepth", XrmoptionSepArg, 0 }, + {"-speed", ".sierpinski3d.speed", XrmoptionSepArg, 0 }, + { "-spin", ".spin", XrmoptionNoArg, "True" }, + { "+spin", ".spin", XrmoptionNoArg, "False" }, + { "-wander", ".wander", XrmoptionNoArg, "True" }, + { "+wander", ".wander", XrmoptionNoArg, "False" }, }; static argtype vars[] = { - {(caddr_t *) &max_depth, "maxDepth", "MaxDepth", "5", t_Int}, - {(caddr_t *) &speed, "speed", "Speed", "150", t_Int}, + {&do_spin, "spin", "Spin", DEF_SPIN, t_Bool}, + {&do_wander, "wander", "Wander", DEF_WANDER, t_Bool}, + {&speed, "speed", "Speed", DEF_SPEED, t_Int}, + {&max_depth, "maxDepth", "MaxDepth", DEF_MAX_DEPTH, t_Int}, }; -ModeSpecOpt gasket_opts = {countof(opts), opts, countof(vars), vars, NULL}; +ENTRYPOINT ModeSpecOpt gasket_opts = {countof(opts), opts, countof(vars), vars, NULL}; #ifdef USE_MODULES ModStruct gasket_description = @@ -79,22 +83,17 @@ ModStruct gasket_description = #endif -typedef struct{ - GLfloat x; - GLfloat y; - GLfloat z; -} GL_VECTOR; - typedef struct { - 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 */ + double x,y,z; +} XYZ; - GLfloat angle; +typedef struct { GLuint gasket0, gasket1, gasket2, gasket3; GLXContext *glx_context; Window window; + rotator *rot; + trackball_state *trackball; + Bool button_down_p; int current_depth; @@ -105,15 +104,12 @@ typedef struct { int ccolor2; int ccolor3; + int tick; + } gasketstruct; static gasketstruct *gasket = NULL; -#include - -static GLfloat normals[4][3]; - - static void triangle (GLfloat x1, GLfloat y1, GLfloat z1, @@ -132,7 +128,9 @@ triangle (GLfloat x1, GLfloat y1, GLfloat z1, } static void -four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, +four_tetras (gasketstruct *gp, + XYZ *outer, XYZ *normals, + Bool wireframe_p, int countdown, int which, int *countP) { if (countdown <= 0) @@ -140,7 +138,7 @@ four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, (*countP)++; if (which == 0) { - glNormal3f (normals[0][0], normals[0][1], normals[0][2]); + glNormal3f (normals[0].x, normals[0].y, normals[0].z); triangle (outer[0].x, outer[0].y, outer[0].z, outer[1].x, outer[1].y, outer[1].z, outer[2].x, outer[2].y, outer[2].z, @@ -148,7 +146,7 @@ four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, } else if (which == 1) { - glNormal3f (normals[1][0], normals[1][1], normals[1][2]); + glNormal3f (normals[1].x, normals[1].y, normals[1].z); triangle (outer[0].x, outer[0].y, outer[0].z, outer[3].x, outer[3].y, outer[3].z, outer[1].x, outer[1].y, outer[1].z, @@ -156,7 +154,7 @@ four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, } else if (which == 2) { - glNormal3f (normals[2][0], normals[2][1], normals[2][2]); + glNormal3f (normals[2].x, normals[2].y, normals[2].z); triangle (outer[0].x, outer[0].y, outer[0].z, outer[2].x, outer[2].y, outer[2].z, outer[3].x, outer[3].y, outer[3].z, @@ -164,7 +162,7 @@ four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, } else { - glNormal3f (normals[3][0], normals[3][1], normals[3][2]); + glNormal3f (normals[3].x, normals[3].y, normals[3].z); triangle (outer[1].x, outer[1].y, outer[1].z, outer[3].x, outer[3].y, outer[3].z, outer[2].x, outer[2].y, outer[2].z, @@ -179,8 +177,8 @@ four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, # define M12 3 # define M13 4 # define M23 5 - GL_VECTOR inner[M23+1]; - GL_VECTOR corner[4]; + XYZ inner[M23+1]; + XYZ corner[4]; inner[M01].x = (outer[0].x + outer[1].x) / 2.0; inner[M01].y = (outer[0].y + outer[1].y) / 2.0; @@ -212,25 +210,25 @@ four_tetras (GL_VECTOR *outer, Bool wireframe_p, int countdown, int which, corner[1] = inner[M01]; corner[2] = inner[M02]; corner[3] = inner[M03]; - four_tetras (corner, wireframe_p, countdown, which, countP); + four_tetras (gp, corner, normals, wireframe_p, countdown, which, countP); corner[0] = inner[M01]; corner[1] = outer[1]; corner[2] = inner[M12]; corner[3] = inner[M13]; - four_tetras (corner, wireframe_p, countdown, which, countP); + four_tetras (gp, corner, normals, wireframe_p, countdown, which, countP); corner[0] = inner[M02]; corner[1] = inner[M12]; corner[2] = outer[2]; corner[3] = inner[M23]; - four_tetras (corner, wireframe_p, countdown, which, countP); + four_tetras (gp, corner, normals, wireframe_p, countdown, which, countP); corner[0] = inner[M03]; corner[1] = inner[M13]; corner[2] = inner[M23]; corner[3] = outer[3]; - four_tetras (corner, wireframe_p, countdown, which, countP); + four_tetras (gp, corner, normals, wireframe_p, countdown, which, countP); } } @@ -240,55 +238,27 @@ compile_gasket(ModeInfo *mi, int which) { Bool wireframe_p = MI_IS_WIREFRAME(mi); gasketstruct *gp = &gasket[MI_SCREEN(mi)]; - int count; - - GL_VECTOR vertex[5]; - - normals[0][0] = 0; - normals[0][1] = 0; - normals[0][2] = -sqrt(2.0 / 3.0); - - normals[1][0] = 0; - normals[1][1] = -sqrt(0.75); - normals[1][2] = sqrt(2.0 / 3.0) / 3.0; - - normals[2][0] = sqrt (0.5); - normals[2][1] = sqrt(0.75) / 2.0; - normals[2][2] = normals[1][2]; - - normals[3][0] = -normals[2][0]; - normals[3][1] = normals[2][1]; - normals[3][2] = normals[1][2]; - - - /* define verticies */ - vertex[0].x = 0.5; - vertex[0].y = -(1.0/3.0)*sqrt((2.0/3.0)); - vertex[0].z = -sqrt(3.0)/6.0; - - vertex[1].x = -0.5; - vertex[1].y = -(1.0/3.0)*sqrt((2.0/3.0)); - vertex[1].z = -sqrt(3.0)/6.0; - - vertex[2].x = 0.0; - vertex[2].y = (2.0/3.0)*sqrt((2.0/3.0)); - vertex[2].z = -sqrt(3.0)/6.0; - - vertex[3].x = 0.0; - vertex[3].y = 0.0; - vertex[3].z = sqrt(3.0)/3.0; - - vertex[4].x = 0.0; - vertex[4].y = 0.0; - vertex[4].z = 0.0; - - count = 0; - four_tetras (vertex, wireframe_p, + int count = 0; + XYZ vertex[5]; + XYZ normal[4]; + + vertex[0].x = -1; vertex[0].y = -1; vertex[0].z = -1; + vertex[1].x = 1; vertex[1].y = 1; vertex[1].z = -1; + vertex[2].x = 1; vertex[2].y = -1; vertex[2].z = 1; + vertex[3].x = -1; vertex[3].y = 1; vertex[3].z = 1; + vertex[4].x = 0; vertex[4].y = 0; vertex[4].z = 0; /* center */ + + normal[0].x = 1; normal[0].y = -1; normal[0].z = -1; + normal[1].x = -1; normal[1].y = 1; normal[1].z = -1; + normal[2].x = -1; normal[2].y = -1; normal[2].z = 1; + normal[3].x = 1; normal[3].y = 1; normal[3].z = 1; + + four_tetras (gp, vertex, normal, wireframe_p, (gp->current_depth < 0 ? -gp->current_depth : gp->current_depth), which, &count); - mi->polygon_count = count; + mi->polygon_count += count; } static void @@ -296,14 +266,14 @@ draw(ModeInfo *mi) { Bool wireframe_p = MI_IS_WIREFRAME(mi); gasketstruct *gp = &gasket[MI_SCREEN(mi)]; - static int tick = 999999; - static GLfloat pos[4] = {-4.0, 3.0, 10.0, 1.0}; - static float white[] = {1.0, 1.0, 1.0, 1.0}; - static float color0[] = {0.0, 0.0, 0.0, 1.0}; - static float color1[] = {0.0, 0.0, 0.0, 1.0}; - static float color2[] = {0.0, 0.0, 0.0, 1.0}; - static float color3[] = {0.0, 0.0, 0.0, 1.0}; + static const GLfloat pos[] = {-4.0, 3.0, 10.0, 1.0}; + static const GLfloat white[] = {1.0, 1.0, 1.0, 1.0}; + + GLfloat color0[] = {0.0, 0.0, 0.0, 1.0}; + GLfloat color1[] = {0.0, 0.0, 0.0, 1.0}; + GLfloat color2[] = {0.0, 0.0, 0.0, 1.0}; + GLfloat color3[] = {0.0, 0.0, 0.0, 1.0}; glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); @@ -351,29 +321,21 @@ draw(ModeInfo *mi) glPushMatrix(); { - static int frame = 0; - GLfloat x, y, z; - -# define SINOID(SCALE,SIZE) \ - ((((1 + sin((frame * (SCALE)) / 2 * M_PI)) / 2.0) * (SIZE)) - (SIZE)/2) - x = SINOID(0.0071, 8.0); - y = SINOID(0.0053, 6.0); - z = SINOID(0.0037, 15.0); - frame++; - glTranslatef(x, y, z); - - x = gp->rotx; - y = gp->roty; - z = gp->rotz; - if (x < 0) x = 1 - (x + 1); - if (y < 0) y = 1 - (y + 1); - if (z < 0) z = 1 - (z + 1); - 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); + double x, y, z; + get_position (gp->rot, &x, &y, &z, !gp->button_down_p); + glTranslatef((x - 0.5) * 10, + (y - 0.5) * 10, + (z - 0.5) * 20); + + gltrackball_rotate (gp->trackball); + + get_rotation (gp->rot, &x, &y, &z, !gp->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); } - glScalef( 8.0, 8.0, 8.0 ); + glScalef (4, 4, 4); glMaterialfv (GL_FRONT, GL_AMBIENT_AND_DIFFUSE, color0); glCallList(gp->gasket0); @@ -387,9 +349,9 @@ draw(ModeInfo *mi) glPopMatrix(); - if (tick++ >= speed) + if (gp->tick++ >= speed) { - tick = 0; + gp->tick = 0; if (gp->current_depth >= max_depth) gp->current_depth = -max_depth; gp->current_depth++; @@ -410,12 +372,15 @@ draw(ModeInfo *mi) glNewList (gp->gasket2, GL_COMPILE); compile_gasket (mi, 2); glEndList(); glNewList (gp->gasket3, GL_COMPILE); compile_gasket (mi, 3); glEndList(); + mi->recursion_depth = (gp->current_depth > 0 + ? gp->current_depth + : -gp->current_depth); } } /* new window size or exposure */ -void +ENTRYPOINT void reshape_gasket(ModeInfo *mi, int width, int height) { GLfloat h = (GLfloat) height / (GLfloat) width; @@ -423,14 +388,13 @@ reshape_gasket(ModeInfo *mi, int width, int height) glViewport(0, 0, (GLint) width, (GLint) height); 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); } @@ -449,79 +413,51 @@ pinit(ModeInfo *mi) } - -/* 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) +ENTRYPOINT Bool +gasket_handle_event (ModeInfo *mi, XEvent *event) { - 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; + gasketstruct *gp = &gasket[MI_SCREEN(mi)]; - /* clamp velocity */ - if (*v > max_v || *v < -max_v) + if (gltrackball_event_handler (event, gp->trackball, + MI_WIDTH (mi), MI_HEIGHT (mi), + &gp->button_down_p)) + return True; + else if (event->xany.type == KeyPress) { - *dv = -*dv; + KeySym keysym; + char c = 0; + XLookupString (&event->xkey, &c, 1, &keysym, 0); + if (c == '+' || c == '=' || + keysym == XK_Up || keysym == XK_Right || keysym == XK_Next) + { + gp->tick = speed; + gp->current_depth += (gp->current_depth > 0 ? 1 : -1); + gp->current_depth--; + return True; + } + else if (c == '-' || c == '_' || + keysym == XK_Down || keysym == XK_Left || keysym == XK_Prior) + { + gp->tick = speed; + gp->current_depth -= (gp->current_depth > 0 ? 1 : -1); + gp->current_depth--; + return True; + } + else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event)) + goto DEF; } - /* If it stops, start it going in the other direction. */ - else if (*v < 0) + else if (screenhack_event_helper (MI_DISPLAY(mi), MI_WINDOW(mi), event)) { - 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; - } + DEF: + gp->tick = speed; + return True; } - /* 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; - } + return False; } -void +ENTRYPOINT void init_gasket(ModeInfo *mi) { int screen = MI_SCREEN(mi); @@ -537,20 +473,17 @@ init_gasket(ModeInfo *mi) gp->window = MI_WINDOW(mi); - gp->rotx = frand(1.0) * RANDSIGN(); - gp->roty = frand(1.0) * RANDSIGN(); - gp->rotz = frand(1.0) * RANDSIGN(); - - /* bell curve from 0-1.5 degrees, avg 0.75 */ - gp->dx = (frand(1) + frand(1) + frand(1)) / (360*2); - gp->dy = (frand(1) + frand(1) + frand(1)) / (360*2); - gp->dz = (frand(1) + frand(1) + frand(1)) / (360*2); - - gp->d_max = gp->dx * 2; - - gp->ddx = 0.00006 + frand(0.00003); - gp->ddy = 0.00006 + frand(0.00003); - gp->ddz = 0.00006 + frand(0.00003); + { + double spin_speed = 1.0; + double wander_speed = 0.03; + gp->rot = make_rotator (do_spin ? spin_speed : 0, + do_spin ? spin_speed : 0, + do_spin ? spin_speed : 0, + 1.0, + do_wander ? wander_speed : 0, + True); + gp->trackball = gltrackball_init (True); + } gp->ncolors = 255; gp->colors = (XColor *) calloc(gp->ncolors, sizeof(XColor)); @@ -561,6 +494,7 @@ init_gasket(ModeInfo *mi) gp->ccolor1 = gp->ncolors * 0.25; gp->ccolor2 = gp->ncolors * 0.5; gp->ccolor3 = gp->ncolors * 0.75; + gp->tick = 999999; if ((gp->glx_context = init_GL(mi)) != NULL) { @@ -573,37 +507,46 @@ init_gasket(ModeInfo *mi) } } -void +ENTRYPOINT void draw_gasket(ModeInfo * mi) { gasketstruct *gp = &gasket[MI_SCREEN(mi)]; Display *display = MI_DISPLAY(mi); Window window = MI_WINDOW(mi); - int angle_incr = 1; if (!gp->glx_context) return; glDrawBuffer(GL_BACK); + /* 0 = 4 polygons + 1 = 16 polygons + 2 = 64 polygons + 3 = 256 polygons + 4 = 1,024 polygons + 5 = 4,096 polygons + 6 = 16,384 polygons + 7 = 65,536 polygons, 30 fps (3GHz Core 2 Duo, GeForce 8800 GS) + 8 = 262,144 polygons, 12 fps + 9 = 1,048,576 polygons, 4 fps + 10 = 4,194,304 polygons, 1 fps + 11 = 16,777,216 polygons, 0.3 fps + 12 = 67,108,864 polygons, OOM! + 13 = 268,435,456 polygons + 14 = 1,073,741,824 polygons, 31 bits + 15 = 4,294,967,296 polygons, 33 bits + 16 = 17,179,869,184 polygons, 35 bits + */ if (max_depth > 10) max_depth = 10; glXMakeCurrent(display, window, *(gp->glx_context)); draw(mi); - - /* rotate */ - gp->angle = (int) (gp->angle + angle_incr) % 360; - - rotate(&gp->rotx, &gp->dx, &gp->ddx, gp->d_max); - rotate(&gp->roty, &gp->dy, &gp->ddy, gp->d_max); - rotate(&gp->rotz, &gp->dz, &gp->ddz, gp->d_max); - if (mi->fps_p) do_fps (mi); glFinish(); glXSwapBuffers(display, window); } -void +ENTRYPOINT void release_gasket(ModeInfo * mi) { if (gasket != NULL) @@ -631,6 +574,7 @@ release_gasket(ModeInfo * mi) FreeAllGL(mi); } +XSCREENSAVER_MODULE_2 ("Sierpinski3D", sierpinski3d, gasket) /*********************************************************/