/* -*- Mode: C; tab-width: 4 -*- */
/* cage --- the Impossible Cage, an Escher like scene. */
-#if !defined( lint ) && !defined( SABER )
+#if 0
static const char sccsid[] = "@(#)cage.c 5.01 2001/03/01 xlockmore";
-
#endif
/*-
* In real OpenGL, PseudoColor DO NOT support texture map (as far as I know).
*/
-#ifdef VMS
-/*-
- * 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>
-#endif
-
#ifdef STANDALONE
# define MODE_cage
-# define PROGCLASS "Cage"
-# define HACK_INIT init_cage
-# define HACK_DRAW draw_cage
-# define HACK_RESHAPE reshape
-# define cage_opts xlockmore_opts
# define DEFAULTS "*delay: 25000 \n" \
"*showFPS: False \n" \
- "*wireframe: False \n"
+ "*wireframe: False \n" \
+ "*suppressRotationAnimation: True\n" \
+
+# define refresh_cage 0
+# define release_cage 0
+# define cage_handle_event 0
# include "xlockmore.h" /* from the xscreensaver distribution */
#else /* !STANDALONE */
# include "xlock.h" /* from the xlockmore distribution */
-
#endif /* !STANDALONE */
#ifdef MODE_cage
-
-#include <GL/glu.h>
+#if 0
#include "e_textures.h"
+#else
+#include "xpm-ximage.h"
+#include "../images/wood.xpm"
+#endif
-ModeSpecOpt cage_opts =
+ENTRYPOINT ModeSpecOpt cage_opts =
{0, (XrmOptionDescRec *) NULL, 0, (argtype *) NULL, (OptionStruct *) NULL};
#ifdef USE_MODULES
ModStruct cage_description =
-{"cage", "init_cage", "draw_cage", "release_cage",
+{"cage", "init_cage", "draw_cage", NULL,
"draw_cage", "change_cage", (char *) NULL, &cage_opts,
25000, 1, 1, 1, 1.0, 4, "",
"Shows the Impossible Cage, an Escher-like GL scene", 0, NULL};
GLXContext *glx_context;
} cagestruct;
-static float front_shininess[] =
-{60.0};
-static float front_specular[] =
-{0.7, 0.7, 0.7, 1.0};
-static float ambient[] =
-{0.0, 0.0, 0.0, 1.0};
-static float diffuse[] =
-{1.0, 1.0, 1.0, 1.0};
-static float position0[] =
-{1.0, 1.0, 1.0, 0.0};
-static float position1[] =
-{-1.0, -1.0, 1.0, 0.0};
-static float lmodel_ambient[] =
-{0.5, 0.5, 0.5, 1.0};
-static float lmodel_twoside[] =
-{GL_TRUE};
-
-static float MaterialWhite[] =
-{0.7, 0.7, 0.7, 1.0};
+static const float front_shininess[] = {60.0};
+static const float front_specular[] = {0.7, 0.7, 0.7, 1.0};
+static const float ambient[] = {0.0, 0.0, 0.0, 1.0};
+static const float diffuse[] = {1.0, 1.0, 1.0, 1.0};
+static const float position0[] = {1.0, 1.0, 1.0, 0.0};
+static const float position1[] = {-1.0, -1.0, 1.0, 0.0};
+static const float lmodel_ambient[] = {0.5, 0.5, 0.5, 1.0};
+static const float lmodel_twoside[] = {GL_TRUE};
+
+static const float MaterialWhite[] = {0.7, 0.7, 0.7, 1.0};
static cagestruct *cage = (cagestruct *) NULL;
#define PlankThickness 0.15
static Bool
-draw_woodplank(cagestruct * cp)
+draw_woodplank(ModeInfo *mi, cagestruct * cp, int wire)
{
- glBegin(GL_QUADS);
+ glBegin(wire ? GL_LINES : GL_QUADS);
glNormal3f(0, 0, 1);
glTexCoord2f(0, 0);
glVertex3f(-PlankWidth, -PlankHeight, PlankThickness);
glVertex3f(PlankWidth, PlankHeight, PlankThickness);
glTexCoord2f(0, 1);
glVertex3f(-PlankWidth, PlankHeight, PlankThickness);
+ mi->polygon_count++;
glNormal3f(0, 0, -1);
glTexCoord2f(0, 0);
glVertex3f(-PlankWidth, PlankHeight, -PlankThickness);
glVertex3f(PlankWidth, -PlankHeight, -PlankThickness);
glTexCoord2f(0, 1);
glVertex3f(-PlankWidth, -PlankHeight, -PlankThickness);
+ mi->polygon_count++;
glNormal3f(0, 1, 0);
glTexCoord2f(0, 0);
glVertex3f(-PlankWidth, PlankHeight, PlankThickness);
glVertex3f(PlankWidth, PlankHeight, -PlankThickness);
glTexCoord2f(0, 1);
glVertex3f(-PlankWidth, PlankHeight, -PlankThickness);
+ mi->polygon_count++;
glNormal3f(0, -1, 0);
glTexCoord2f(0, 0);
glVertex3f(-PlankWidth, -PlankHeight, -PlankThickness);
glVertex3f(PlankWidth, -PlankHeight, PlankThickness);
glTexCoord2f(0, 1);
glVertex3f(-PlankWidth, -PlankHeight, PlankThickness);
+ mi->polygon_count++;
glNormal3f(1, 0, 0);
glTexCoord2f(0, 0);
glVertex3f(PlankWidth, -PlankHeight, PlankThickness);
glVertex3f(PlankWidth, PlankHeight, -PlankThickness);
glTexCoord2f(0, 1);
glVertex3f(PlankWidth, PlankHeight, PlankThickness);
+ mi->polygon_count++;
glNormal3f(-1, 0, 0);
glTexCoord2f(0, 0);
glVertex3f(-PlankWidth, PlankHeight, PlankThickness);
glVertex3f(-PlankWidth, -PlankHeight, -PlankThickness);
glTexCoord2f(0, 1);
glVertex3f(-PlankWidth, -PlankHeight, PlankThickness);
+ mi->polygon_count++;
glEnd();
return True;
}
static Bool
-draw_impossiblecage(cagestruct * cp)
+draw_impossiblecage(ModeInfo *mi, cagestruct * cp, int wire)
{
glPushMatrix();
glRotatef(90, 0, 1, 0);
glTranslatef(0.0, PlankHeight - PlankWidth, -PlankThickness - PlankWidth);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 0, 1);
glTranslatef(0.0, PlankHeight - PlankWidth, PlankWidth - PlankThickness);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 1, 0);
glTranslatef(0.0, PlankWidth - PlankHeight, -PlankThickness - PlankWidth);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glTranslatef(0.0, PlankWidth - PlankHeight, 3 * PlankThickness - PlankWidth);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 0, 1);
glTranslatef(0.0, PlankWidth - PlankHeight, PlankWidth - PlankThickness);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glTranslatef(0.0, PlankWidth - PlankHeight, PlankWidth - 3 * PlankThickness);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glTranslatef(0.0, PlankHeight - PlankWidth, 3 * PlankThickness - PlankWidth);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 0, 1);
glTranslatef(0.0, PlankHeight - PlankWidth, PlankThickness - PlankWidth);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glTranslatef(0.0, PlankHeight - PlankWidth, PlankWidth - 3 * PlankThickness);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 1, 0);
glTranslatef(0.0, PlankHeight - PlankWidth, PlankWidth + PlankThickness);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 0, 1);
glTranslatef(0.0, PlankWidth - PlankHeight, PlankThickness - PlankWidth);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
glPushMatrix();
glRotatef(90, 0, 1, 0);
glTranslatef(0.0, PlankWidth - PlankHeight, PlankWidth + PlankThickness);
- if (!draw_woodplank(cp))
+ if (!draw_woodplank(mi, cp, wire))
return False;
glPopMatrix();
return True;
}
-void
-reshape(ModeInfo * mi, int width, int height)
+static void
+reshape_cage(ModeInfo * mi, int width, int height)
{
cagestruct *cp = &cage[MI_SCREEN(mi)];
int i;
static void
pinit(ModeInfo *mi)
{
- int status;
- glClearDepth(1.0);
- glClearColor(0.0, 0.0, 0.0, 1.0);
+ /* int status; */
+
+ if (MI_IS_WIREFRAME(mi))
+ return;
glLightfv(GL_LIGHT0, GL_AMBIENT, ambient);
glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+#if 0
clear_gl_error();
if (MI_IS_MONO(mi))
status = 0;
exit (1);
}
check_gl_error("mipmapping");
+#else
+ {
+ XImage *img = xpm_to_ximage (mi->dpy,
+ mi->xgwa.visual,
+ mi->xgwa.colormap,
+ wood_texture);
+ glTexImage2D (GL_TEXTURE_2D, 0, GL_RGBA,
+ img->width, img->height, 0,
+ GL_RGBA,
+ /* GL_UNSIGNED_BYTE, */
+ GL_UNSIGNED_INT_8_8_8_8_REV,
+ img->data);
+ check_gl_error("texture");
+ XDestroyImage (img);
+ }
+#endif
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, front_specular);
}
-void
-release_cage(ModeInfo * mi)
-{
- if (cage != NULL) {
- int screen;
-
- for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++) {
- cagestruct *cp = &cage[screen];
-
- if (cp->glx_context) {
- cp->glx_context = (GLXContext *) NULL;
- }
- }
- (void) free((void *) cage);
- cage = (cagestruct *) NULL;
- }
- FreeAllGL(mi);
-}
-
-void
-init_cage(ModeInfo * mi)
+ENTRYPOINT void
+init_cage (ModeInfo * mi)
{
cagestruct *cp;
- if (cage == NULL) {
- if ((cage = (cagestruct *) calloc(MI_NUM_SCREENS(mi),
- sizeof (cagestruct))) == NULL)
- return;
- }
+ MI_INIT (mi, cage, NULL);
cp = &cage[MI_SCREEN(mi)];
cp->step = NRAND(90);
if ((cp->glx_context = init_GL(mi)) != NULL) {
- reshape(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
+ reshape_cage(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
glDrawBuffer(GL_BACK);
pinit(mi);
} else {
}
}
-void
-draw_cage(ModeInfo * mi)
+ENTRYPOINT void
+draw_cage (ModeInfo * mi)
{
Display *display = MI_DISPLAY(mi);
Window window = MI_WINDOW(mi);
if (!cp->glx_context)
return;
+ mi->polygon_count = 0;
glXMakeCurrent(display, window, *(cp->glx_context));
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glPushMatrix();
-
glTranslatef(0.0, 0.0, -10.0);
if (!MI_IS_ICONIC(mi)) {
glScalef(Scale4Iconic * cp->WindH / cp->WindW, Scale4Iconic, Scale4Iconic);
}
+# ifdef HAVE_MOBILE /* Keep it the same relative size when rotated. */
+ {
+ int o = (int) current_device_rotation();
+ GLfloat h = MI_HEIGHT(mi) / (GLfloat) MI_WIDTH(mi);
+ if (o != 0 && o != 180 && o != -180) {
+ glScalef (1/h, h, 1/h); /* #### not quite right */
+ h = 1.7;
+ glScalef (h, h, h);
+ }
+ }
+# endif
+
/* cage */
glRotatef(cp->step * 100, 0, 0, 1);
glRotatef(25 + cos(cp->step * 5) * 6, 1, 0, 0);
glRotatef(204.5 - sin(cp->step * 5) * 8, 0, 1, 0);
- if (!draw_impossiblecage(cp)) {
- release_cage(mi);
+ if (!draw_impossiblecage(mi, cp, MI_IS_WIREFRAME(mi))) {
+ MI_ABORT(mi);
return;
}
cp->step += 0.025;
}
-void
-change_cage(ModeInfo * mi)
+#ifndef STANDALONE
+ENTRYPOINT void
+change_cage (ModeInfo * mi)
{
cagestruct *cp = &cage[MI_SCREEN(mi)];
glXMakeCurrent(MI_DISPLAY(mi), MI_WINDOW(mi), *(cp->glx_context));
pinit(mi);
}
+#endif /* !STANDALONE */
+
+XSCREENSAVER_MODULE ("Cage", cage)
#endif
projects / xscreensaver / blobdiff