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 0cc99019ebc19ab8dc4970a6f2ee9e127117f28e..ed06645aedce34379cda5132ad4c4d0f6e804e31 100644 (file)
--- a/hacks/glx/rubik.c
+++ b/hacks/glx/rubik.c
@@ -112,7 +112,7 @@ static const char sccsid[] = "@(#)rubik.c   5.01 2001/03/01 xlockmore";
                                        "*size:  -6 \n"         \
                                        "*suppressRotationAnimation: True\n" \
 
-# define refresh_rubik 0
+# define release_rubik 0
 # include "xlockmore.h"                                /* from the xscreensaver distribution */
 #else /* !STANDALONE */
 # include "xlock.h"                                    /* from the xlockmore distribution */
@@ -163,8 +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};
 
@@ -1813,8 +1813,14 @@ ENTRYPOINT void
 reshape_rubik(ModeInfo * mi, int width, int height)
 {
        rubikstruct *rp = &rubik[MI_SCREEN(mi)];
+    int y = 0;
 
-       glViewport(0, 0, rp->WindW = (GLint) width, rp->WindH = (GLint) height);
+    if (width > height * 5) {   /* tiny window: show middle */
+      height = width;
+      y = -height/2;
+    }
+
+       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);
@@ -1868,9 +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++)
@@ -1889,33 +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;
@@ -1928,7 +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");
@@ -2028,7 +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);
@@ -2061,7 +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");
@@ -2077,7 +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");
@@ -2105,7 +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");
@@ -2139,7 +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");