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Reworked random seed handling once more: 

2004-02-01  Michael Natterer  <mitch@gimp.org>

	Reworked random seed handling once more:

	* libgimpwidgets/gimpwidgets.c (gimp_random_seed_new): make sure
	the displayed random seed value is always the one which will be
	used, whether "Randomize" is checked or not.

	* plug-ins/common/blur.c
	* plug-ins/common/plasma.c
	* plug-ins/common/randomize.c
	* plug-ins/common/sinus.c
	* plug-ins/common/snoise.c
	* plug-ins/maze/algorithms.c
	* plug-ins/maze/maze.c: if running interactively, always take
	the seed value produced by the gimp_random_seed widget and don't
	touch it because the widgets honors the "randomize" toggle
	correctly now.

	For noninteractive and last_vals runs, look at the "randomize"
	boolean and generate a seed if it is TRUE.

	Initialize the random number generators from the seed determined
	by either of the above ways and don't fiddle with it in the inner
	algorithms itself.

	* plug-ins/gflare/gflare.c (plugin_run): initialize the GRand
	from the seed unconditionally.

	(ed_make_page_sflare): no need to get the entry from the random
	seed widget to get its adjustment. Instead get the adjustment
	directly.

	(The random handling code of gflare looks somewhat broken, but
	that applies to the whole plug-in).
This commit is contained in:
Michael Natterer 2004-02-01 13:22:09 +00:00 committed by Michael Natterer
parent d7d5a4513a
commit 61ac7167d6
10 changed files with 146 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
ChangeLog
View File

@ -1,3 +1,39 @@
2004-02-01 Michael Natterer <mitch@gimp.org>
Reworked random seed handling once more:
* libgimpwidgets/gimpwidgets.c (gimp_random_seed_new): make sure
the displayed random seed value is always the one which will be
used, whether "Randomize" is checked or not.
* plug-ins/common/blur.c
* plug-ins/common/plasma.c
* plug-ins/common/randomize.c
* plug-ins/common/sinus.c
* plug-ins/common/snoise.c
* plug-ins/maze/algorithms.c
* plug-ins/maze/maze.c: if running interactively, always take
the seed value produced by the gimp_random_seed widget and don't
touch it because the widgets honors the "randomize" toggle
correctly now.
For noninteractive and last_vals runs, look at the "randomize"
boolean and generate a seed if it is TRUE.
Initialize the random number generators from the seed determined
by either of the above ways and don't fiddle with it in the inner
algorithms itself.
* plug-ins/gflare/gflare.c (plugin_run): initialize the GRand
from the seed unconditionally.
(ed_make_page_sflare): no need to get the entry from the random
seed widget to get its adjustment. Instead get the adjustment
directly.
(The random handling code of gflare looks somewhat broken, but
that applies to the whole plug-in).
2004-02-01 Michael Natterer <mitch@gimp.org>
* app/plug-in/plug-ins.c (plug_ins_init): when removing a

54
libgimpwidgets/gimpwidgets.c
View File

@ -1214,10 +1214,17 @@ static void
gimp_random_seed_update (GtkWidget *widget,
gpointer data)
{
GtkWidget *w = data;
GtkWidget *spinbutton = data;
gtk_spin_button_set_value (GTK_SPIN_BUTTON (w),
(guint) g_random_int ());
/* Generate a new seed if the "New Seed" button was clicked or
* of the "Randomize" toggle is activated
*/
if (! GTK_IS_TOGGLE_BUTTON (widget) ||
gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
gtk_spin_button_set_value (GTK_SPIN_BUTTON (spinbutton),
(guint) g_random_int ());
}
}
/**
@ -1233,7 +1240,8 @@ gimp_random_seed_update (GtkWidget *widget,
* a #GtkButton for setting a random seed.
**/
GtkWidget *
gimp_random_seed_new (guint *seed, gboolean *random_seed)
gimp_random_seed_new (guint *seed,
gboolean *random_seed)
{
GtkWidget *hbox;
GtkWidget *toggle;
@ -1241,41 +1249,44 @@ gimp_random_seed_new (guint *seed, gboolean *random_seed)
GtkObject *adj;
GtkWidget *button;
g_return_val_if_fail (seed != NULL, NULL);
g_return_val_if_fail (random_seed != NULL, NULL);
hbox = gtk_hbox_new (FALSE, 4);
/* If we're being asked to generate a random seed, generate one. */
/* I'm not sure this should be here
if (*random_seed)
{
*seed = g_random_int ();
}
*/
*seed = g_random_int ();
spinbutton = gimp_spin_button_new (&adj, *seed,
0, (guint32) -1 , 1, 10, 0, 1, 0);
gtk_box_pack_start (GTK_BOX (hbox), spinbutton, FALSE, FALSE, 0);
gtk_widget_show (spinbutton);
g_signal_connect (adj, "value_changed",
G_CALLBACK (gimp_uint_adjustment_update),
seed);
gtk_widget_show (spinbutton);
gimp_help_set_help_data (spinbutton,
_("Use this value for random number generator "
"seed - this allows you to repeat a "
"given \"random\" operation"), NULL);
button = gtk_button_new_with_mnemonic (_("_New seed"));
button = gtk_button_new_with_mnemonic (_("_New Seed"));
gtk_misc_set_padding (GTK_MISC (GTK_BIN (button)->child), 2, 0);
/* Send spinbutton as data so that we can change the value in
* gimp_random_seed_update() */
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_random_seed_update),
spinbutton);
gtk_box_pack_start (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
/* Send spinbutton as data so that we can change the value in
* gimp_random_seed_update()
*/
g_signal_connect (button, "clicked",
G_CALLBACK (gimp_random_seed_update),
spinbutton);
gimp_help_set_help_data (button,
_("Seed random number generator with a generated random number"),
_("Seed random number generator with a generated "
"random number"),
NULL);
toggle = gtk_check_button_new_with_label (_("Randomize"));
@ -1287,15 +1298,20 @@ gimp_random_seed_new (guint *seed, gboolean *random_seed)
G_CALLBACK (gimp_toggle_button_update),
random_seed);
/* Need to create a new seed when the "Randomize" toggle is activated */
g_signal_connect (toggle, "toggled",
G_CALLBACK (gimp_random_seed_update),
spinbutton);
g_object_set_data (G_OBJECT (hbox), "spinbutton", spinbutton);
g_object_set_data (G_OBJECT (hbox), "button", button);
g_object_set_data (G_OBJECT (hbox), "toggle", toggle);
/* Set sensitivity data for the toggle, this stuff makes
* gimp_toggle_button_sensitive_update work */
* gimp_toggle_button_sensitive_update work
*/
g_object_set_data (G_OBJECT (toggle), "inverse_sensitive", spinbutton);
g_object_set_data (G_OBJECT (spinbutton), "inverse_sensitive", button);
// g_object_set_data (G_OBJECT (button), "inverse_sensitive", adj);
/* Initialise sensitivity */
gimp_toggle_button_update (toggle, random_seed);

15
plug-ins/common/blur.c
View File

@ -251,7 +251,7 @@ run (const gchar *name,
*/
case GIMP_RUN_INTERACTIVE:
gimp_get_data (PLUG_IN_NAME, &pivals);
if (!blur_dialog ()) /* return on Cancel */
if (! blur_dialog ()) /* return on Cancel */
return;
break;
@ -273,6 +273,9 @@ run (const gchar *name,
pivals.blur_rcount = (gdouble) MAX (1.0, pivals.blur_rcount);
pivals.blur_randomize = (gboolean) param[5].data.d_int32;
pivals.blur_seed = (gint) param[6].data.d_int32;
if (pivals.blur_randomize)
pivals.blur_seed = g_random_int ();
}
else if ((strcmp (name, PLUG_IN_NAME) == 0) &&
(nparams == 3))
@ -293,6 +296,9 @@ run (const gchar *name,
*/
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_NAME, &pivals);
if (pivals.blur_randomize)
pivals.blur_seed = g_random_int ();
break;
/*
@ -310,11 +316,8 @@ run (const gchar *name,
gimp_progress_init (_("Blurring..."));
gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width ()
+ 1));
/*
* Initialize the rand() function seed
*/
if (pivals.blur_randomize)
g_random_set_seed (pivals.blur_seed);
g_random_set_seed (pivals.blur_seed);
blur (drawable);
/*

11
plug-ins/common/plasma.c
View File

@ -237,7 +237,7 @@ run (const gchar *name,
}
else
{
pvals.seed = (guint32) param[3].data.d_int32;
pvals.seed = (guint32) param[3].data.d_int32;
pvals.turbulence = (gdouble) param[4].data.d_float;
if (pvals.turbulence <= 0)
@ -248,6 +248,7 @@ run (const gchar *name,
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_plasma", &pvals);
if (pvals.random_seed)
pvals.seed = g_random_int ();
break;
@ -347,11 +348,6 @@ plasma_dialog (GimpDrawable *drawable,
G_CALLBACK (plasma_seed_changed_callback),
drawable);
g_signal_connect_swapped (GIMP_RANDOM_SEED_TOGGLE (seed),
"toggled",
G_CALLBACK (plasma_seed_changed_callback),
drawable);
adj = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("T_urbulence:"), SCALE_WIDTH, 0,
pvals.turbulence,
@ -378,9 +374,6 @@ static void
plasma_seed_changed_callback (GimpDrawable *drawable,
gpointer data)
{
if (pvals.random_seed)
pvals.seed = g_random_int ();
plasma (drawable, TRUE);
}

42
plug-ins/common/randomize.c
View File

@ -314,9 +314,9 @@ run (const gchar *name,
/*
* Make sure the drawable type is appropriate.
*/
if (gimp_drawable_is_rgb(drawable->drawable_id) ||
gimp_drawable_is_gray(drawable->drawable_id) ||
gimp_drawable_is_indexed(drawable->drawable_id))
if (gimp_drawable_is_rgb (drawable->drawable_id) ||
gimp_drawable_is_gray (drawable->drawable_id) ||
gimp_drawable_is_indexed (drawable->drawable_id))
{
switch (run_mode)
{
@ -324,8 +324,9 @@ run (const gchar *name,
* If we're running interactively, pop up the dialog box.
*/
case GIMP_RUN_INTERACTIVE:
gimp_get_data(PLUG_IN_NAME[rndm_type - 1], &pivals);
if (!randomize_dialog()) /* return on Cancel */
gimp_get_data (PLUG_IN_NAME[rndm_type - 1], &pivals);
if (! randomize_dialog ()) /* return on Cancel */
return;
break;
/*
@ -341,10 +342,13 @@ run (const gchar *name,
}
else
{
pivals.rndm_pct = (gdouble) param[3].data.d_float;
pivals.rndm_pct = (gdouble) param[3].data.d_float;
pivals.rndm_rcount = (gdouble) param[4].data.d_float;
pivals.randomize = (gboolean) param[5].data.d_int32;
pivals.seed = (gint) param[6].data.d_int32;
pivals.randomize = (gboolean) param[5].data.d_int32;
pivals.seed = (gint) param[6].data.d_int32;
if (pivals.randomize)
pivals.seed = g_random_int ();
if ((rndm_type != RNDM_PICK &&
rndm_type != RNDM_SLUR &&
@ -361,6 +365,9 @@ run (const gchar *name,
*/
case GIMP_RUN_WITH_LAST_VALS:
gimp_get_data (PLUG_IN_NAME[rndm_type - 1], &pivals);
if (pivals.randomize)
pivals.seed = g_random_int ();
break;
/*
* Hopefully we never get here!
@ -368,6 +375,7 @@ run (const gchar *name,
default:
break;
}
if (status == GIMP_PDB_SUCCESS)
{
/*
@ -379,16 +387,16 @@ run (const gchar *name,
case RNDM_PICK: rndm_type_str = "pick"; break;
case RNDM_SLUR: rndm_type_str = "slur"; break;
}
sprintf (prog_label, "%s (%s)...",
gettext(RNDM_VERSION[rndm_type - 1]),
gettext(rndm_type_str));
gimp_progress_init(prog_label);
gimp_tile_cache_ntiles(2 * (drawable->width / gimp_tile_width() + 1));
gettext (RNDM_VERSION[rndm_type - 1]),
gettext (rndm_type_str));
gimp_progress_init (prog_label);
gimp_tile_cache_ntiles (2 * (drawable->width / gimp_tile_width () + 1));
/*
* Initialize the g_rand() function seed
*/
if (!pivals.randomize)
g_rand_set_seed (gr, pivals.seed);
g_rand_set_seed (gr, pivals.seed);
randomize (drawable, gr);
/*
@ -396,15 +404,15 @@ run (const gchar *name,
*/
if (run_mode != GIMP_RUN_NONINTERACTIVE)
{
gimp_displays_flush();
gimp_displays_flush ();
}
/*
* If we use the dialog popup, set the data for future use.
*/
if (run_mode == GIMP_RUN_INTERACTIVE)
{
gimp_set_data(PLUG_IN_NAME[rndm_type - 1], &pivals,
sizeof(RandomizeVals));
gimp_set_data (PLUG_IN_NAME[rndm_type - 1], &pivals,
sizeof (RandomizeVals));
}
}
}

16
plug-ins/common/sinus.c
View File

@ -72,7 +72,7 @@ typedef struct
glong colors;
GimpRGB col1;
GimpRGB col2;
gboolean random_seed;
gboolean random_seed;
} SinusVals;
static SinusVals svals =
@ -87,7 +87,8 @@ static SinusVals svals =
LINEAR,
USE_COLORS,
{ 1.0, 1.0, 0.0, 1.0 },
{ 0.0, 0.0, 1.0, 1.0 }
{ 0.0, 0.0, 1.0, 1.0 },
FALSE
};
typedef struct
@ -231,7 +232,7 @@ run (const gchar *name,
thePreview = mw_preview_build_virgin(drawable);
drawable_is_grayscale = gimp_drawable_is_gray (drawable->drawable_id);
if (!sinus_dialog())
if (! sinus_dialog ())
return;
break;
@ -257,12 +258,18 @@ run (const gchar *name,
gimp_rgb_set_alpha (&svals.col2, param[13].data.d_float);
svals.colorization = param[14].data.d_int32;
svals.blend_power = param[15].data.d_float;
if (svals.random_seed)
svals.seed = g_random_int ();
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_sinus", &svals);
if (svals.random_seed)
svals.seed = g_random_int ();
break;
default:
@ -313,8 +320,7 @@ prepare_coef (params *p)
gr = g_rand_new ();
if (!svals.random_seed)
g_rand_set_seed (gr, svals.seed);
g_rand_set_seed (gr, svals.seed);
switch (svals.colorization)
{

10
plug-ins/common/snoise.c
View File

@ -231,12 +231,18 @@ run (const gchar *name,
snvals.detail = param[6].data.d_int32;
snvals.xsize = param[7].data.d_float;
snvals.ysize = param[8].data.d_float;
if (snvals.random_seed)
snvals.seed = g_random_int ();
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_solid_noise", &snvals);
if (snvals.random_seed)
snvals.seed = g_random_int ();
break;
default:
@ -358,8 +364,8 @@ solid_noise_init (void)
GRand *gr;
gr = g_rand_new ();
if (!snvals.random_seed)
g_rand_set_seed (gr, snvals.seed);
g_rand_set_seed (gr, snvals.seed);
/* Force sane parameters */
snvals.detail = CLAMP (snvals.detail, 0, 15);

15
plug-ins/gflare/gflare.c
View File

@ -926,11 +926,6 @@ plugin_run (const gchar *name,
break;
case GIMP_RUN_NONINTERACTIVE:
#if 0
printf("Currently non interactive call of gradient flare is not supported\n");
status = GIMP_PDB_CALLING_ERROR;
break;
#endif
if (nparams != 14)
{
status = GIMP_PDB_CALLING_ERROR;
@ -1883,8 +1878,7 @@ calc_place_sflare (void)
prob[i] = sum2 / sum;
}
if (!gflare->random_seed)
g_rand_set_seed (gr, gflare->sflare_seed);
g_rand_set_seed (gr, gflare->sflare_seed);
for (n = 0; n < SFLARE_NUM; n++)
{
@ -3696,7 +3690,6 @@ ed_make_page_sflare (GFlareEditor *ed,
GtkObject *adj;
gchar buf[256];
gint row;
gboolean randomize = FALSE;
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 6);
@ -3853,14 +3846,10 @@ ed_make_page_sflare (GFlareEditor *ed,
gtk_widget_show (label);
seed = gimp_random_seed_new (&gflare->sflare_seed, &gflare->random_seed);
entry = GTK_WIDGET (GIMP_RANDOM_SEED_SPINBUTTON (seed));
gtk_box_pack_start (GTK_BOX (seed_hbox), seed, FALSE, TRUE, 0);
gtk_widget_show (seed);
g_signal_connect (GTK_SPIN_BUTTON (entry)->adjustment,
"value_changed",
g_signal_connect (GIMP_RANDOM_SEED_SPINBUTTON_ADJ (seed), "value_changed",
G_CALLBACK (ed_preview_update),
NULL);

18
plug-ins/maze/algorithms.c
View File

@ -280,14 +280,9 @@ prim(gint pos, gchar *maz, guint x, guint y)
guint progress=0, max_progress;
char d, i;
guint c=0;
gint rnd;
gint rnd = mvals.seed;
if (mvals.random_seed)
rnd = g_random_int ();
else
rnd = mvals.seed;
g_rand_set_seed (gr, rnd);
g_rand_set_seed (gr, rnd);
gimp_progress_init (_("Constructing maze using Prim's Algorithm..."));
@ -461,14 +456,9 @@ prim_tileable(gchar *maz, guint x, guint y)
guint progress=0, max_progress;
char d, i;
guint c=0;
gint rnd;
gint rnd = mvals.seed;
if (mvals.random_seed)
rnd = g_random_int ();
else
rnd = mvals.seed;
g_rand_set_seed (gr, rnd);
g_rand_set_seed (gr, rnd);
gimp_progress_init (_("Constructing tileable maze using Prim's Algorithm..."));

24
plug-ins/maze/maze.c
View File

@ -212,7 +212,8 @@ run (const gchar *name,
/* The interface needs to know the dimensions of the image... */
gimp_drawable_mask_bounds (drawable->drawable_id, &x1, &y1, &x2, &y2);
sel_w=x2-x1; sel_h=y2-y1;
sel_w = x2 - x1;
sel_h = y2 - y1;
/* Acquire info with a dialog */
if (! maze_dialog ())
@ -235,12 +236,18 @@ run (const gchar *name,
mvals.seed = (guint32) param[7].data.d_int32;
mvals.multiple = (gint16) param[8].data.d_int16;
mvals.offset = (gint16) param[9].data.d_int16;
if (mvals.random_seed)
mvals.seed = g_random_int ();
}
break;
case GIMP_RUN_WITH_LAST_VALS:
/* Possibly retrieve data */
gimp_get_data ("plug_in_maze", &mvals);
if (mvals.random_seed)
mvals.seed = g_random_int ();
break;
default:
@ -367,10 +374,7 @@ maze (GimpDrawable * drawable)
switch (mvals.algorithm)
{
case DEPTH_FIRST:
if (mvals.random_seed)
mazegen_tileable (0, maz, mw, mh, g_random_int ());
else
mazegen_tileable (0, maz, mw, mh, mvals.seed);
mazegen_tileable (0, maz, mw, mh, mvals.seed);
break;
case PRIMS_ALGORITHM:
@ -400,10 +404,7 @@ maze (GimpDrawable * drawable)
switch (mvals.algorithm)
{
case DEPTH_FIRST:
if (mvals.random_seed)
mazegen (maz_yy+maz_xx, maz, mw, mh, g_random_int());
else
mazegen (maz_yy+maz_xx, maz, mw, mh, mvals.seed);
mazegen (maz_yy+maz_xx, maz, mw, mh, mvals.seed);
break;
case PRIMS_ALGORITHM:
@ -425,10 +426,7 @@ maze (GimpDrawable * drawable)
switch (mvals.algorithm)
{
case DEPTH_FIRST:
if (mvals.random_seed)
mazegen (pos, maz, mw, mh, g_random_int ());
else
mazegen (pos, maz, mw, mh, mvals.seed);
mazegen (pos, maz, mw, mh, mvals.seed);
break;
case PRIMS_ALGORITHM: