From http://www.jwz.org/xscreensaver/xscreensaver-5.38.tar.gz

[xscreensaver] / hacks / glx / rubik.c

diff --git a/hacks/glx/rubik.c b/hacks/glx/rubik.c
index 99641c097f1b128a0c0b0b722995cb0158e7d9bc..ed06645aedce34379cda5132ad4c4d0f6e804e31 100644 (file)
--- a/hacks/glx/rubik.c
+++ b/hacks/glx/rubik.c
@@ -109,8 +109,10 @@ static const char sccsid[] = "@(#)rubik.c  5.01 2001/03/01 xlockmore";
                                        "*count: -30 \n"                \
                                        "*showFPS: False \n"    \
                                        "*cycles: 20 \n"                \
-                                       "*size:  -6 \n"
-# define refresh_rubik 0
+                                       "*size:  -6 \n"         \
+                                       "*suppressRotationAnimation: True\n" \
+
+# define release_rubik 0
 # include "xlockmore.h"                                /* from the xscreensaver distribution */
 #else /* !STANDALONE */
 # include "xlock.h"                                    /* from the xlockmore distribution */
@@ -161,8 +163,8 @@ ENTRYPOINT ModeSpecOpt rubik_opts =
 
 #ifdef USE_MODULES
 ModStruct   rubik_description =
-{"rubik", "init_rubik", "draw_rubik", "release_rubik",
- "draw_rubik", "change_rubik", (char *) NULL, &rubik_opts,
+{"rubik", "init_rubik", "draw_rubik", (char *) NULL,
+ "draw_rubik", "change_rubik", "free_rubik", &rubik_opts,
  10000, -30, 5, -6, 64, 1.0, "",
  "Shows an auto-solving Rubik's Cube", 0, NULL};
 
@@ -471,6 +473,7 @@ faceSizes(rubikstruct * rp, int face, int * sizeOfRow, int * sizeOfColumn)
                        *sizeOfRow = MAXSIZEX;
                        *sizeOfColumn = MAXSIZEY;
                        break;
+                default: abort();
        }
 }
 
@@ -1810,13 +1813,18 @@ ENTRYPOINT void
 reshape_rubik(ModeInfo * mi, int width, int height)
 {
        rubikstruct *rp = &rubik[MI_SCREEN(mi)];
+    int y = 0;
+
+    if (width > height * 5) {   /* tiny window: show middle */
+      height = width;
+      y = -height/2;
+    }
 
-       glViewport(0, 0, rp->WindW = (GLint) width, rp->WindH = (GLint) height);
+       glViewport(0, y, rp->WindW = (GLint) width, rp->WindH = (GLint) height);
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        glFrustum(-1.0, 1.0, -1.0, 1.0, 5.0, 15.0);
        glMatrixMode(GL_MODELVIEW);
-
 }
 
 ENTRYPOINT Bool
@@ -1866,9 +1874,10 @@ pinit(ModeInfo * mi)
        return (shuffle(mi));
 }
 
-static void
-free_rubik(rubikstruct *rp)
+ENTRYPOINT void
+free_rubik(ModeInfo *mi)
 {
+       rubikstruct *rp = &rubik[MI_SCREEN(mi)];
        int         i;
 
        for (i = 0; i < MAXFACES; i++)
@@ -1887,33 +1896,12 @@ free_rubik(rubikstruct *rp)
        }
 }
 
-ENTRYPOINT void
-release_rubik(ModeInfo * mi)
-{
-       if (rubik != NULL) {
-               int         screen;
-
-               for (screen = 0; screen < MI_NUM_SCREENS(mi); screen++) {
-                       rubikstruct *rp = &rubik[screen];
-
-                       free_rubik(rp);
-               }
-               (void) free((void *) rubik);
-               rubik = (rubikstruct *) NULL;
-       }
-       FreeAllGL(mi);
-}
-
 ENTRYPOINT void
 init_rubik(ModeInfo * mi)
 {
        rubikstruct *rp;
 
-       if (rubik == NULL) {
-               if ((rubik = (rubikstruct *) calloc(MI_NUM_SCREENS(mi),
-                                             sizeof (rubikstruct))) == NULL)
-                       return;
-       }
+       MI_INIT (mi, rubik);
        rp = &rubik[MI_SCREEN(mi)];
        rp->step = NRAND(90);
        rp->PX = ((float) LRAND() / (float) MAXRAND) * 2.0 - 1.0;
@@ -1926,7 +1914,7 @@ init_rubik(ModeInfo * mi)
                reshape_rubik(mi, MI_WIDTH(mi), MI_HEIGHT(mi));
                glDrawBuffer(GL_BACK);
                if (!pinit(mi)) {
-                       free_rubik(rp);
+                       free_rubik(mi);
                        if (MI_IS_VERBOSE(mi)) {
                                (void) fprintf(stderr,
                                        "Could not allocate memory for rubik\n");
@@ -2007,6 +1995,18 @@ draw_rubik(ModeInfo * mi)
                glScalef(Scale4Iconic * rp->WindH / rp->WindW, Scale4Iconic, Scale4Iconic);
        }
 
+# 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, h, 1); /* #### not quite right */
+      h = 1.8;
+      glScalef (h, h, h);
+    }
+  }
+# endif
+
     gltrackball_rotate (rp->trackball);
 
        glRotatef(rp->step * 100, 1, 0, 0);
@@ -2014,7 +2014,7 @@ draw_rubik(ModeInfo * mi)
        glRotatef(rp->step * 90, 0, 0, 1);
 
        if (!draw_cube(mi)) {
-               release_rubik(mi);
+               MI_ABORT(mi);
                return;
        }
         if (MI_IS_FPS(mi)) do_fps (mi);
@@ -2047,7 +2047,7 @@ draw_rubik(ModeInfo * mi)
                                rp->rotatestep += rp->anglestep;
                                if (rp->rotatestep > rp->degreeTurn) {
                                        if (!evalmovement(mi, rp->movement)) {
-                                               free_rubik(rp);
+                                               free_rubik(mi);
                                                if (MI_IS_VERBOSE(mi)) {
                                                        (void) fprintf(stderr,
                                                                "Could not allocate memory for rubik\n");
@@ -2063,7 +2063,7 @@ draw_rubik(ModeInfo * mi)
                if (rp->done) {
                        if (++rp->rotatestep > DELAY_AFTER_SOLVING)
                                if (!shuffle(mi)) {
-                                       free_rubik(rp);
+                                       free_rubik(mi);
                                        if (MI_IS_VERBOSE(mi)) {
                                                (void) fprintf(stderr,
                                                        "Could not allocate memory for rubik\n");
@@ -2091,7 +2091,7 @@ draw_rubik(ModeInfo * mi)
                                rp->rotatestep += rp->anglestep;
                                if (rp->rotatestep > rp->degreeTurn) {
                                        if (!evalmovement(mi, rp->movement)) {
-                                               free_rubik(rp);
+                                               free_rubik(mi);
                                                if (MI_IS_VERBOSE(mi)) {
                                                        (void) fprintf(stderr,
                                                                "Could not allocate memory for rubik\n");
@@ -2125,7 +2125,7 @@ change_rubik(ModeInfo * mi)
        if (!rp->glx_context)
                return;
        if (!pinit(mi)) {
-               free_rubik(rp);
+               free_rubik(mi);
                if (MI_IS_VERBOSE(mi)) {
                        (void) fprintf(stderr,
                                "Could not allocate memory for rubik\n");