Adding upstream version 2.10.36.upstream/2.10.36

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 525 insertions, 0 deletions

diff --git a/plug-ins/common/checkerboard.c b/plug-ins/common/checkerboard.c
new file mode 100644
index 0000000..47fcd96
--- /dev/null
+++ b/plug-ins/common/checkerboard.c
@@ -0,0 +1,525 @@
+/*
+ * This is a plug-in for GIMP.
+ *
+ * Copyright (C) 1997 Brent Burton & the Edward Blevins
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "config.h"
+
+#include <libgimp/gimp.h>
+#include <libgimp/gimpui.h>
+
+#include "libgimp/stdplugins-intl.h"
+
+
+#define PLUG_IN_PROC      "plug-in-checkerboard"
+#define PLUG_IN_BINARY    "checkerboard"
+#define PLUG_IN_ROLE      "gimp-checkerboard"
+#define SPIN_BUTTON_WIDTH 8
+
+
+/* Variables set in dialog box */
+typedef struct data
+{
+  gboolean mode;
+  gint     size;
+} CheckVals;
+
+
+static void      query  (void);
+static void      run    (const gchar       *name,
+                         gint               nparams,
+                         const GimpParam   *param,
+                         gint              *nreturn_vals,
+                         GimpParam        **return_vals);
+
+static void      do_checkerboard_pattern    (gint32        drawable_ID,
+                                             GimpPreview  *preview);
+static void      do_checkerboard_preview    (gpointer      drawable_ID,
+                                             GimpPreview  *preview);
+static gint      inblock                    (gint          pos,
+                                             gint          size);
+
+static gboolean  checkerboard_dialog        (gint32        image_ID,
+                                             gint32        drawable_ID);
+static void      check_size_update_callback (GtkWidget    *widget);
+
+
+const GimpPlugInInfo PLUG_IN_INFO =
+{
+  NULL,  /* init_proc  */
+  NULL,  /* quit_proc  */
+  query, /* query_proc */
+  run,   /* run_proc   */
+};
+
+static CheckVals cvals =
+{
+  FALSE,     /* mode */
+  10         /* size */
+};
+
+MAIN ()
+
+static void
+query (void)
+{
+  static const GimpParamDef args[] =
+  {
+    { GIMP_PDB_INT32,    "run-mode",   "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" },
+    { GIMP_PDB_IMAGE,    "image",      "Input image (unused)" },
+    { GIMP_PDB_DRAWABLE, "drawable",   "Input drawable"       },
+    { GIMP_PDB_INT32,    "check-mode", "Check mode { REGULAR (0), PSYCHOBILY (1) }" },
+    { GIMP_PDB_INT32,    "check-size", "Size of the checks"   }
+  };
+
+  gimp_install_procedure (PLUG_IN_PROC,
+                          N_("Create a checkerboard pattern"),
+                          "More here later",
+                          "Brent Burton & the Edward Blevins",
+                          "Brent Burton & the Edward Blevins",
+                          "1997",
+                          N_("_Checkerboard (legacy)..."),
+                          "RGB*, GRAY*",
+                          GIMP_PLUGIN,
+                          G_N_ELEMENTS (args), 0,
+                          args, NULL);
+
+  gimp_plugin_menu_register (PLUG_IN_PROC, "<Image>/Filters/Render/Pattern");
+}
+
+static void
+run (const gchar      *name,
+     gint              nparams,
+     const GimpParam  *param,
+     gint             *nreturn_vals,
+     GimpParam       **return_vals)
+{
+  static GimpParam   values[1];
+  GimpRunMode        run_mode;
+  gint32             image_ID;
+  gint32             drawable_ID;
+  GimpPDBStatusType  status = GIMP_PDB_SUCCESS;
+
+  INIT_I18N ();
+  gegl_init (NULL, NULL);
+
+  *nreturn_vals = 1;
+  *return_vals  = values;
+
+  values[0].type          = GIMP_PDB_STATUS;
+  values[0].data.d_status = status;
+
+  run_mode    = param[0].data.d_int32;
+  image_ID    = param[1].data.d_int32;
+  drawable_ID = param[2].data.d_drawable;
+
+  switch (run_mode)
+    {
+    case GIMP_RUN_INTERACTIVE:
+      gimp_get_data (PLUG_IN_PROC, &cvals);
+      if (! checkerboard_dialog (image_ID, drawable_ID))
+        return;
+      break;
+
+    case GIMP_RUN_NONINTERACTIVE:
+      if (nparams != 5)
+        status = GIMP_PDB_CALLING_ERROR;
+      if (status == GIMP_PDB_SUCCESS)
+        {
+          cvals.mode = param[3].data.d_int32;
+          cvals.size = param[4].data.d_int32;
+        }
+      break;
+
+    case GIMP_RUN_WITH_LAST_VALS:
+      gimp_get_data (PLUG_IN_PROC, &cvals);
+      break;
+
+    default:
+      break;
+    }
+
+  if (gimp_drawable_is_rgb (drawable_ID) ||
+      gimp_drawable_is_gray (drawable_ID))
+    {
+      do_checkerboard_pattern (drawable_ID, NULL);
+
+      if (run_mode != GIMP_RUN_NONINTERACTIVE)
+        gimp_displays_flush ();
+
+      if (run_mode == GIMP_RUN_INTERACTIVE)
+        gimp_set_data (PLUG_IN_PROC, &cvals, sizeof (CheckVals));
+    }
+  else
+    {
+      status = GIMP_PDB_EXECUTION_ERROR;
+    }
+
+  values[0].data.d_status = status;
+}
+
+typedef struct
+{
+  guchar fg[4];
+  guchar bg[4];
+} CheckerboardParam_t;
+
+static void
+checkerboard_func (gint      x,
+                   gint      y,
+                   guchar   *dest,
+                   gint      bpp,
+                   gpointer  data)
+{
+  CheckerboardParam_t *param = (CheckerboardParam_t*) data;
+
+  gint val, xp, yp;
+  gint b;
+
+  if (cvals.mode)
+    {
+      /* Psychobilly Mode */
+      val = (inblock (x, cvals.size) != inblock (y, cvals.size));
+    }
+  else
+    {
+      /* Normal, regular checkerboard mode.
+       * Determine base factor (even or odd) of block
+       * this x/y position is in.
+       */
+      xp = x / cvals.size;
+      yp = y / cvals.size;
+
+      /* if both even or odd, color sqr */
+      val = ( (xp & 1) != (yp & 1) );
+    }
+
+  for (b = 0; b < bpp; b++)
+    dest[b] = val ? param->fg[b] : param->bg[b];
+}
+
+static void
+do_checkerboard_pattern (gint32       drawable_ID,
+                         GimpPreview *preview)
+{
+  CheckerboardParam_t  param;
+  GimpRGB              fg, bg;
+  const Babl          *format;
+  gint                 bpp;
+
+  gimp_context_get_background (&bg);
+  gimp_context_get_foreground (&fg);
+
+  if (gimp_drawable_is_gray (drawable_ID))
+    {
+      param.bg[0] = gimp_rgb_luminance_uchar (&bg);
+      gimp_rgba_get_uchar (&bg, NULL, NULL, NULL, param.bg + 1);
+
+      param.fg[0] = gimp_rgb_luminance_uchar (&fg);
+      gimp_rgba_get_uchar (&fg, NULL, NULL, NULL, param.fg + 3);
+
+      if (gimp_drawable_has_alpha (drawable_ID))
+        format = babl_format ("R'G'B'A u8");
+      else
+        format = babl_format ("R'G'B' u8");
+    }
+  else
+    {
+      gimp_rgba_get_uchar (&bg,
+                           param.bg, param.bg + 1, param.bg + 2, param.bg + 1);
+
+      gimp_rgba_get_uchar (&fg,
+                           param.fg, param.fg + 1, param.fg + 2, param.fg + 3);
+
+      if (gimp_drawable_has_alpha (drawable_ID))
+        format = babl_format ("Y'A u8");
+      else
+        format = babl_format ("Y' u8");
+    }
+
+  bpp = babl_format_get_bytes_per_pixel (format);
+
+  if (cvals.size < 1)
+    {
+      /* make size 1 to prevent division by zero */
+      cvals.size = 1;
+    }
+
+  if (preview)
+    {
+      gint    x1, y1;
+      gint    width, height;
+      gint    i;
+      guchar *buffer;
+
+      gimp_preview_get_position (preview, &x1, &y1);
+      gimp_preview_get_size (preview, &width, &height);
+      bpp = gimp_drawable_bpp (drawable_ID);
+      buffer = g_new (guchar, width * height * bpp);
+
+      for (i = 0; i < width * height; i++)
+        {
+          checkerboard_func (x1 + i % width,
+                             y1 + i / width,
+                             buffer + i * bpp,
+                             bpp, &param);
+        }
+
+      gimp_preview_draw_buffer (preview, buffer, width * bpp);
+      g_free (buffer);
+    }
+  else
+    {
+      GeglBuffer         *buffer;
+      GeglBufferIterator *iter;
+      gint                x, y, w, h;
+      gint                progress_total;
+      gint                progress_done = 0;
+
+      if (! gimp_drawable_mask_intersect (drawable_ID, &x, &y, &w, &h))
+        return;
+
+      progress_total = w * h;
+
+      gimp_progress_init (_("Checkerboard"));
+
+      buffer = gimp_drawable_get_shadow_buffer (drawable_ID);
+
+      iter = gegl_buffer_iterator_new (buffer,
+                                       GEGL_RECTANGLE (x, y, w, h), 0,
+                                       format,
+                                       GEGL_ACCESS_WRITE, GEGL_ABYSS_NONE, 1);
+
+      while (gegl_buffer_iterator_next (iter))
+        {
+          GeglRectangle  roi  = iter->items[0].roi;
+          guchar        *dest = iter->items[0].data;
+          guchar        *d;
+          gint           y1, x1;
+
+          d = dest;
+
+          for (y1 = 0; y1 < roi.height; y1++)
+            {
+              for (x1 = 0; x1 < roi.width; x1++)
+                {
+                  checkerboard_func (roi.x + x1,
+                                     roi.y + y1,
+                                     d + x1 * bpp,
+                                     bpp, &param);
+                }
+
+              d += roi.width * bpp;
+            }
+
+          progress_done += roi.width * roi.height;
+          gimp_progress_update ((gdouble) progress_done /
+                                (gdouble) progress_total);
+        }
+
+      g_object_unref (buffer);
+
+      gimp_progress_update (1.0);
+
+      gimp_drawable_merge_shadow (drawable_ID, TRUE);
+      gimp_drawable_update (drawable_ID, x, y, w, h);
+    }
+}
+
+static void
+do_checkerboard_preview (gpointer     drawable_ID,
+                         GimpPreview *preview)
+{
+  do_checkerboard_pattern (GPOINTER_TO_INT (drawable_ID), preview);
+}
+
+static gint
+inblock (gint pos,
+         gint size)
+{
+  static gint *in  = NULL;       /* initialized first time */
+  static gint  len = -1;
+
+  /* avoid a FP exception */
+  if (size == 1)
+    size = 2;
+
+  if (in && len != size * size)
+    {
+      g_free (in);
+      in = NULL;
+    }
+  len = size * size;
+
+  /* Initialize the array; since we'll be called thousands of
+   * times with the same size value, precompute the array.
+   */
+  if (in == NULL)
+    {
+      gint cell = 1;    /* cell value */
+      gint i, j, k;
+
+      in = g_new (gint, len);
+
+      /* i is absolute index into in[]
+       * j is current number of blocks to fill in with a 1 or 0.
+       * k is just counter for the j cells.
+       */
+      i = 0;
+      for (j = 1; j <= size; j++)
+        { /* first half */
+          for (k = 0; k < j; k++)
+            {
+              in[i++] = cell;
+            }
+          cell = !cell;
+        }
+      for (j = size - 1; j >= 1; j--)
+        { /* second half */
+          for (k = 0; k < j; k++)
+            {
+              in[i++] = cell;
+            }
+          cell = !cell;
+        }
+    }
+
+  /* place pos within 0..(len-1) grid and return the value. */
+  return in[pos % (len - 1)];
+}
+
+static gboolean
+checkerboard_dialog (gint32 image_ID,
+                     gint32 drawable_ID)
+{
+  GtkWidget *dialog;
+  GtkWidget *vbox;
+  GtkWidget *hbox;
+  GtkWidget *preview;
+  GtkWidget *toggle;
+  GtkWidget *size_entry;
+  gint       size, width, height;
+  GimpUnit   unit;
+  gdouble    xres;
+  gdouble    yres;
+  gboolean   run;
+
+  gimp_ui_init (PLUG_IN_BINARY, FALSE);
+
+  dialog = gimp_dialog_new (_("Checkerboard"), PLUG_IN_ROLE,
+                            NULL, 0,
+                            gimp_standard_help_func, PLUG_IN_PROC,
+
+                            _("_Cancel"), GTK_RESPONSE_CANCEL,
+                            _("_OK"),     GTK_RESPONSE_OK,
+
+                            NULL);
+
+  gtk_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
+                                           GTK_RESPONSE_OK,
+                                           GTK_RESPONSE_CANCEL,
+                                           -1);
+
+  gimp_window_set_transient (GTK_WINDOW (dialog));
+
+  vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 12);
+  gtk_container_set_border_width (GTK_CONTAINER (vbox), 12);
+  gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
+                      vbox, TRUE, TRUE, 0);
+  gtk_widget_show (vbox);
+
+  preview = gimp_drawable_preview_new_from_drawable_id (drawable_ID);
+  gtk_box_pack_start (GTK_BOX (vbox), preview, TRUE, TRUE, 0);
+  gtk_widget_show (preview);
+  g_signal_connect_swapped (preview, "invalidated",
+                            G_CALLBACK (do_checkerboard_preview),
+                            GINT_TO_POINTER (drawable_ID));
+
+  hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
+  gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
+  gtk_widget_show (hbox);
+
+  /*  Get the image resolution and unit  */
+  gimp_image_get_resolution (image_ID, &xres, &yres);
+  unit = gimp_image_get_unit (image_ID);
+
+  width  = gimp_drawable_width (drawable_ID);
+  height = gimp_drawable_height (drawable_ID);
+  size   = MIN (width, height);
+
+  size_entry = gimp_size_entry_new (1, unit, "%a",
+                                    TRUE, TRUE, FALSE, SPIN_BUTTON_WIDTH,
+                                    GIMP_SIZE_ENTRY_UPDATE_SIZE);
+  gtk_table_set_col_spacing (GTK_TABLE (size_entry), 0, 4);
+  gtk_table_set_col_spacing (GTK_TABLE (size_entry), 1, 4);
+  gtk_box_pack_start (GTK_BOX (hbox), size_entry, FALSE, FALSE, 0);
+  gtk_widget_show (size_entry);
+
+  /*  set the unit back to pixels, since most times we will want pixels */
+  gimp_size_entry_set_unit (GIMP_SIZE_ENTRY (size_entry), GIMP_UNIT_PIXEL);
+
+  /*  set the resolution to the image resolution  */
+  gimp_size_entry_set_resolution (GIMP_SIZE_ENTRY (size_entry), 0, xres, TRUE);
+
+  /*  set the size (in pixels) that will be treated as 0% and 100%  */
+  gimp_size_entry_set_size (GIMP_SIZE_ENTRY (size_entry), 0, 0.0, size);
+
+  /*  set upper and lower limits (in pixels)  */
+  gimp_size_entry_set_refval_boundaries (GIMP_SIZE_ENTRY (size_entry), 0,
+                                         1.0, size);
+
+  /*  initialize the values  */
+  gimp_size_entry_set_refval (GIMP_SIZE_ENTRY (size_entry), 0, cvals.size);
+
+  /*  attach labels  */
+  gimp_size_entry_attach_label (GIMP_SIZE_ENTRY (size_entry),
+                                _("_Size:"), 1, 0, 0.0);
+
+  g_signal_connect (size_entry, "value-changed",
+                    G_CALLBACK (check_size_update_callback),
+                    &cvals.size);
+  g_signal_connect_swapped (size_entry, "value-changed",
+                            G_CALLBACK (gimp_preview_invalidate),
+                            preview);
+
+  toggle = gtk_check_button_new_with_mnemonic (_("_Psychobilly"));
+  gtk_box_pack_start (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
+  gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (toggle), cvals.mode);
+  gtk_widget_show (toggle);
+
+  g_signal_connect (toggle, "toggled",
+                    G_CALLBACK (gimp_toggle_button_update),
+                    &cvals.mode);
+  g_signal_connect_swapped (toggle, "toggled",
+                            G_CALLBACK (gimp_preview_invalidate),
+                            preview);
+
+  gtk_widget_show (dialog);
+
+  run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK);
+
+  gtk_widget_destroy (dialog);
+
+  return run;
+}
+
+static void
+check_size_update_callback (GtkWidget *widget)
+{
+  cvals.size = gimp_size_entry_get_refval (GIMP_SIZE_ENTRY (widget), 0);
+}