[gegl] operations: port noise-hurl to gegl-random
- From: Michael Natterer <mitch src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gegl] operations: port noise-hurl to gegl-random
- Date: Thu, 13 Dec 2012 21:36:29 +0000 (UTC)
commit 803ccc23aa8b030e71e3898ea6af08abbe29f1a8
Author: Michael Natterer <mitch gimp org>
Date: Thu Dec 13 22:34:32 2012 +0100
operations: port noise-hurl to gegl-random
operations/common/noise-hurl.c | 117 +++++++++++++++++++++-------------------
1 files changed, 61 insertions(+), 56 deletions(-)
---
diff --git a/operations/common/noise-hurl.c b/operations/common/noise-hurl.c
index e3b65d2..bee7f2a 100644
--- a/operations/common/noise-hurl.c
+++ b/operations/common/noise-hurl.c
@@ -23,26 +23,26 @@
*/
#include "config.h"
+
#include <glib/gi18n-lib.h>
#ifdef GEGL_CHANT_PROPERTIES
-gegl_chant_seed (seed, _("Seed"), _("Random seed"))
+gegl_chant_seed (seed, _("Seed"), _("Random seed"))
-gegl_chant_double (pct_random, _("Randomization (%)"), 0.0, 100.0, 3.0, _("Randomization"))
+gegl_chant_double (pct_random, _("Randomization (%)"),
+ 0.0, 100.0, 50.0, _("Randomization"))
-gegl_chant_int (repeat, _("Repeat"), 1, 100, 1, _("Repeat"))
+gegl_chant_int (repeat, _("Repeat"),
+ 1, 100, 1, _("Repeat"))
#else
#define GEGL_CHANT_TYPE_POINT_FILTER
-#define GEGL_CHANT_C_FILE "noise-hurl.c"
+#define GEGL_CHANT_C_FILE "noise-hurl.c"
#include "gegl-chant.h"
-#include <stdio.h>
-#include <math.h>
-#include <stdlib.h>
static void
prepare (GeglOperation *operation)
@@ -60,61 +60,66 @@ process (GeglOperation *operation,
gint level)
{
GeglChantO *o = GEGL_CHANT_PROPERTIES (operation);
+ gfloat *GEGL_ALIGNED in_pixel;
+ gfloat *GEGL_ALIGNED out_pixel;
+ gfloat *out_pix;
+ gint i, cnt;
- gint i, cnt;
-
- GRand *gr;
-
- gfloat * GEGL_ALIGNED in_pixel;
- gfloat * GEGL_ALIGNED out_pixel;
-
- gfloat red, green, blue, alpha;
- gfloat *out_pix;
-
- in_pixel = in_buf;
- out_pixel = out_buf;
-
-
- gr = g_rand_new_with_seed (o->seed);
+ in_pixel = in_buf;
+ out_pixel = out_buf;
+ out_pix = out_pixel;
- out_pix = out_pixel;
-
- for (i = 0; i < n_pixels*4; i++)
- {
- *out_pix = *in_pixel;
- out_pix += 1;
- in_pixel += 1;
- }
-
-
- for (cnt = 1; cnt <= o->repeat; cnt++)
- {
- out_pix = out_pixel;
+ for (i = 0; i < n_pixels * 4; i++)
+ {
+ *out_pix = *in_pixel;
+ out_pix += 1;
+ in_pixel += 1;
+ }
- for (i = 0; i < n_pixels; i++)
+ for (cnt = 0; cnt < o->repeat; cnt++)
{
- red = out_pix[0];
- green = out_pix[1];
- blue = out_pix[2];
- alpha = out_pix[3];
-
- if (g_rand_double_range (gr, 0.0, 100.0) <= o->pct_random)
- {
- red = g_rand_double_range (gr, 0.0, 1.0);
- green = g_rand_double_range (gr, 0.0, 1.0);
- blue = g_rand_double_range (gr, 0.0, 1.0);
- }
-
- out_pix[0] = red;
- out_pix[1] = green;
- out_pix[2] = blue;
- out_pix[3] = alpha;
-
- out_pix += 4;
+ gint x, y, n;
+
+ x = roi->x;
+ y = roi->y;
+ n = 0;
+
+ out_pix = out_pixel;
+
+ for (i = 0; i < n_pixels; i++)
+ {
+ gfloat red, green, blue, alpha;
+
+ red = out_pix[0];
+ green = out_pix[1];
+ blue = out_pix[2];
+ alpha = out_pix[3];
+
+ if (gegl_random_double_range (o->seed, x, y, 0, n++, 0.0, 100.0) <=
+ o->pct_random)
+ {
+ red = gegl_random_double_range (o->seed, x, y, 0, n++, 0.0, 1.0);
+ green = gegl_random_double_range (o->seed, x, y, 0, n++, 0.0, 1.0);
+ blue = gegl_random_double_range (o->seed, x, y, 0, n++, 0.0, 1.0);
+ }
+
+ out_pix[0] = red;
+ out_pix[1] = green;
+ out_pix[2] = blue;
+ out_pix[3] = alpha;
+
+ out_pix += 4;
+
+ x++;
+ if (x >= roi->x + roi->width)
+ {
+ x = roi->x;
+ y++;
+ }
+ }
}
- }
- return TRUE;
+ return TRUE;
}
static void
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