/* -*- Mode: C; tab-width: 4 -*- */
/* superquadrics --- 3D mathematical shapes */
-#if !defined( lint ) && !defined( SABER )
+#if 0
static const char sccsid[] = "@(#)superquadrics.c 4.07 97/11/24 xlockmore";
-
#endif
/*-
* Ed Mackey
*/
-/*-
- * due to a Bug/feature in VMS X11/Intrinsic.h has to be placed before xlock.
- * otherwise caddr_t is not defined correctly
- */
-
-#include <X11/Intrinsic.h>
-
#ifdef STANDALONE
-# define PROGCLASS "Superquadrics"
-# define HACK_INIT init_superquadrics
-# define HACK_DRAW draw_superquadrics
-# define superquadrics_opts xlockmore_opts
-# define DEFAULTS "*delay: 100 \n" \
+# define DEFAULTS "*delay: 40000 \n" \
"*count: 25 \n" \
"*cycles: 40 \n" \
- "*wireframe: False \n"
+ "*showFPS: False \n" \
+ "*wireframe: False \n" \
+ "*suppressRotationAnimation: True\n" \
+
+# define release_superquadrics 0
+# define superquadrics_handle_event 0
# include "xlockmore.h" /* from the xscreensaver distribution */
#else /* !STANDALONE */
# include "xlock.h" /* from the xlockmore distribution */
static XrmOptionDescRec opts[] =
{
- {"-spinspeed", ".superquadrics.spinspeed", XrmoptionSepArg, (caddr_t) NULL}
+ {"-spinspeed", ".superquadrics.spinspeed", XrmoptionSepArg, 0}
};
static argtype vars[] =
{
- {(caddr_t *) & spinspeed, "spinspeed", "Spinspeed", DEF_SPINSPEED, t_Float}
+ {&spinspeed, "spinspeed", "Spinspeed", DEF_SPINSPEED, t_Float}
};
static OptionStruct desc[] =
{
{"-spinspeed num", "speed of rotation, in degrees per frame"}
};
-ModeSpecOpt superquadrics_opts =
+ENTRYPOINT ModeSpecOpt superquadrics_opts =
{sizeof opts / sizeof opts[0], opts, sizeof vars / sizeof vars[0], vars, desc};
#ifdef USE_MODULES
ModStruct superquadrics_description =
-{"superquadrics", "init_superquadrics", "draw_superquadrics", "release_superquadrics",
+{"superquadrics", "init_superquadrics", "draw_superquadrics", NULL,
"refresh_superquadrics", "init_superquadrics", NULL, &superquadrics_opts,
1000, 25, 40, 1, 4, 1.0, "",
"Shows 3D mathematical shapes", 0, NULL};
#endif
-#include <GL/glu.h>
-
#define MaxRes 50
#define MinRes 5
double xExponent, yExponent, Mode;
int resolution;
state now, later;
+
+ int pats[4][4];
+ int cullmode;
+
} superquadricsstruct;
static superquadricsstruct *superquadrics = NULL;
static void
MakeUpStuff(int allstuff, superquadricsstruct * sp)
{
- static int pats[4][4] =
- {
- {0, 0, 0, 0},
- {0, 1, 0, 1},
- {0, 0, 1, 1},
- {0, 1, 1, 0}
- };
-
int dostuff;
int t, pat;
GLfloat r, g, b, r2, g2, b2;
pat = myrand(4);
for (t = 0; t < 4; ++t) {
- sp->later.r[t] = pats[pat][t] ? r : r2;
- sp->later.g[t] = pats[pat][t] ? g : g2;
- sp->later.b[t] = pats[pat][t] ? b : b2;
+ sp->later.r[t] = sp->pats[pat][t] ? r : r2;
+ sp->later.g[t] = sp->pats[pat][t] ? g : g2;
+ sp->later.b[t] = sp->pats[pat][t] ? b : b2;
}
}
if (dostuff & 8) {
}
-static void
+static int
DoneScale(superquadricsstruct * sp)
{
double xx, yy, zz, xp = 0, yp = 0, zp = 0, xn, yn, zn, xnp = 0,
ynp = 0, znp = 0;
int ih, iv;
+ int polys = 0;
/* Hey don't knock my 2-letter variable names. Simon's BASIC rules, man! ;-> */
/* Just kidding..... */
if (ih > 1) {
glVertex3f(xx, yy, zz);
glVertex3f(sp->Prevxx[iv], sp->Prevyy[iv], sp->Prevzz[iv]);
+ polys++;
}
if (iv > 1) {
glVertex3f(xx, yy, zz);
glVertex3f(sp->Prevxx[iv - 1], sp->Prevyy[iv - 1], sp->Prevzz[iv - 1]);
+ polys++;
}
/* PURIFY 4.0.1 reports an unitialized memory read on the next line when using
* MesaGL 2.2 and -mono. This has been fixed in MesaGL 2.3 and later. */
if (!sp->flatshade)
glNormal3f(sp->Prevxn[iv - 1], sp->Prevyn[iv - 1], sp->Prevzn[iv - 1]);
glVertex3f(sp->Prevxx[iv - 1], sp->Prevyy[iv - 1], sp->Prevzz[iv - 1]);
+ polys++;
glEnd();
}
if (sp->shownorms) {
glBegin(GL_LINES);
glVertex3f(xx, yy, zz);
glVertex3f(xx + xn, yy + yn, zz + zn);
+ polys++;
glEnd();
if (!sp->flatshade)
glShadeModel(GL_SMOOTH);
} /* next */
} /* next */
+ return polys;
}
/**** End of really old code ****/
static void
SetCull(int init, superquadricsstruct * sp)
{
- static int cullmode;
-
if (init) {
- cullmode = 0;
+ glDisable(GL_CULL_FACE);
+ sp->cullmode = 0;
return;
}
if (sp->Mode < 1.0001) {
- if (cullmode != 1) {
+ if (sp->cullmode != 1) {
glEnable(GL_CULL_FACE);
glCullFace(GL_BACK);
- cullmode = 1;
+ sp->cullmode = 1;
}
} else if (sp->Mode > 2.9999) {
- if (cullmode != 2) {
+ if (sp->cullmode != 2) {
glEnable(GL_CULL_FACE);
glCullFace(GL_FRONT);
- cullmode = 2;
+ sp->cullmode = 2;
}
} else {
- if (cullmode) {
+ if (sp->cullmode) {
glDisable(GL_CULL_FACE);
- cullmode = 0;
+ sp->cullmode = 0;
}
}
}
}
}
-static void
-DisplaySuperquadrics(superquadricsstruct * sp)
+static int
+DisplaySuperquadrics(ModeInfo *mi)
{
+ superquadricsstruct *sp = &superquadrics[MI_SCREEN(mi)];
+ int polys = 0;
glDrawBuffer(GL_BACK);
if (sp->wireframe)
glClear(GL_COLOR_BUFFER_BIT);
if (sp->viewcount < 1) {
sp->viewcount = sp->viewwait;
- ReshapeSuperquadrics(-1, -1);
+/* ReshapeSuperquadrics(-1, -1);*/
}
glPushMatrix();
glTranslatef(0.0, 0.0, -((GLfloat) (sp->dist) / 16.0) - (sp->Mode * 3.0 - 1.0)); /* viewing transform */
SetCull(0, sp);
- DoneScale(sp);
+ glScalef(0.7, 0.7, 0.7); /* jwz: scale it down a bit */
+
+# ifdef HAVE_MOBILE /* Keep it the same relative size when rotated. */
+ {
+ GLfloat h = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
+ int o = (int) current_device_rotation();
+ if (o != 0 && o != 180 && o != -180)
+ glScalef (1/h, 1/h, 1/h);
+ }
+# endif
+
+ polys = DoneScale(sp);
glPopMatrix();
/* Remember to flush & swap the buffers after calling this function! */
+ return polys;
}
-static void
-NextSuperquadricDisplay(superquadricsstruct * sp)
+static int
+NextSuperquadricDisplay(ModeInfo *mi)
{
+ superquadricsstruct *sp = &superquadrics[MI_SCREEN(mi)];
NextSuperquadric(sp);
- DisplaySuperquadrics(sp);
+ return DisplaySuperquadrics(mi);
}
#define MINSIZE 200
static void
ReshapeSuperquadrics(int w, int h)
{
- static int last_w = 0, last_h = 0;
+#if 0
int maxsize, cursize;
- if (w < 0) {
- w = last_w;
- h = last_h;
- } else {
- last_w = w;
- last_h = h;
- }
maxsize = (w < h) ? w : h;
if (maxsize <= MINSIZE) {
cursize = maxsize;
} else {
glViewport(0, 0, w, h);
}
+#else
+ glViewport(0, 0, w, h);
+#endif
+
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
- gluPerspective(30.0, (GLfloat) w / (GLfloat) h, 0.1, 200.0);
+ gluPerspective(15.0, (GLfloat) w / (GLfloat) h, 0.1, 200.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
int t;
- for (t = 0; t < 4; ++t)
+ for (t = 0; t < 4; ++t) {
+ sp->curmat[t][0] = 0.0;
+ sp->curmat[t][1] = 0.0;
+ sp->curmat[t][2] = 0.0;
sp->curmat[t][3] = 1.0;
+ }
sp->rotx = 35.0;
sp->roty = 0.0;
sp->maxwait = sp->maxcount >> 1;
SetCull(1, sp);
+ sp->mono = 0;
sp->spinspeed = speed;
sp->viewcount = sp->viewwait = (sp->maxcount < 2) ? 1 : (sp->maxcount << 3);
if (snorm)
sp->shownorms = 1;
+ glClearDepth(1.0);
+
if (sp->wireframe) {
glShadeModel(GL_FLAT);
glDisable(GL_LIGHTING);
/* End of superquadrics main functions */
-void
+ENTRYPOINT void
init_superquadrics(ModeInfo * mi)
{
Display *display = MI_DISPLAY(mi);
superquadricsstruct *sp;
- if (superquadrics == NULL) {
- if ((superquadrics = (superquadricsstruct *) calloc(MI_NUM_SCREENS(mi),
- sizeof (superquadricsstruct))) == NULL)
- return;
- }
+ MI_INIT (mi, superquadrics, NULL);
sp = &superquadrics[screen];
sp->mono = (MI_IS_MONO(mi) ? 1 : 0);
+ sp->pats[1][1] = 1;
+ sp->pats[1][3] = 1;
+ sp->pats[2][2] = 1;
+ sp->pats[2][3] = 1;
+ sp->pats[3][1] = 1;
+ sp->pats[3][2] = 1;
+
+/* {0, 0, 0, 0},
+ {0, 1, 0, 1},
+ {0, 0, 1, 1},
+ {0, 1, 1, 0}
+ */
+
if ((sp->glx_context = init_GL(mi)) != NULL) {
InitSuperquadrics(MI_IS_WIREFRAME(mi), 0,
MI_COUNT(mi), MI_CYCLES(mi), spinspeed, sp);
ReshapeSuperquadrics(MI_WIDTH(mi), MI_HEIGHT(mi));
- DisplaySuperquadrics(sp);
+ DisplaySuperquadrics(mi);
glFinish();
glXSwapBuffers(display, window);
} else {
}
}
-void
+ENTRYPOINT void
draw_superquadrics(ModeInfo * mi)
{
superquadricsstruct *sp = &superquadrics[MI_SCREEN(mi)];
glXMakeCurrent(display, window, *(sp->glx_context));
- NextSuperquadricDisplay(sp);
+ mi->polygon_count = NextSuperquadricDisplay(mi);
+ if (mi->fps_p) do_fps (mi);
glFinish();
glXSwapBuffers(display, window);
}
-void
+ENTRYPOINT void
refresh_superquadrics(ModeInfo * mi)
{
/* Nothing happens here */
}
-void
-release_superquadrics(ModeInfo * mi)
+ENTRYPOINT void
+reshape_superquadrics(ModeInfo * mi, int width, int height)
{
- if (superquadrics != NULL) {
- (void) free((void *) superquadrics);
- superquadrics = NULL;
- }
- FreeAllGL(mi);
+ ReshapeSuperquadrics(MI_WIDTH(mi), MI_HEIGHT(mi));
}
#endif
/* End of superquadrics.c */
+
+XSCREENSAVER_MODULE ("Superquadrics", superquadrics)
projects / xscreensaver / blobdiff