mirror of https://github.com/GNOME/gimp.git
148 lines
4.6 KiB
C
148 lines
4.6 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* gimpimage-convert-precision.c
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* Copyright (C) 2012 Michael Natterer <mitch@gimp.org>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include "core-types.h"
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#include "gegl/gimp-gegl-utils.h"
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#include "gimpdrawable.h"
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#include "gimpimage.h"
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#include "gimpimage-convert-precision.h"
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#include "gimpimage-undo.h"
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#include "gimpimage-undo-push.h"
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#include "gimpprogress.h"
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#include "gimp-intl.h"
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void
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gimp_image_convert_precision (GimpImage *image,
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GimpPrecision precision,
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gint layer_dither_type,
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gint mask_dither_type,
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GimpProgress *progress)
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{
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GList *all_drawables;
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GList *list;
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const gchar *undo_desc = NULL;
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gint nth_drawable, n_drawables;
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g_return_if_fail (GIMP_IS_IMAGE (image));
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g_return_if_fail (precision != gimp_image_get_precision (image));
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g_return_if_fail (precision == GIMP_PRECISION_U8 ||
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gimp_image_get_base_type (image) != GIMP_INDEXED);
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g_return_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress));
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all_drawables = g_list_concat (gimp_image_get_layer_list (image),
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gimp_image_get_channel_list (image));
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n_drawables = g_list_length (all_drawables) + 1 /* + selection */;
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switch (precision)
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{
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case GIMP_PRECISION_U8:
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undo_desc = C_("undo-type", "Convert Image to 8 bit integer");
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break;
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case GIMP_PRECISION_U16:
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undo_desc = C_("undo-type", "Convert Image to 16 bit integer");
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break;
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case GIMP_PRECISION_U32:
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undo_desc = C_("undo-type", "Convert Image to 32 bit integer");
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break;
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case GIMP_PRECISION_HALF:
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undo_desc = C_("undo-type", "Convert Image to 16 bit floating point");
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break;
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case GIMP_PRECISION_FLOAT:
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undo_desc = C_("undo-type", "Convert Image to 32 bit floating point");
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break;
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}
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if (progress)
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gimp_progress_start (progress, undo_desc, FALSE);
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g_object_freeze_notify (G_OBJECT (image));
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gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_CONVERT,
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undo_desc);
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/* Push the image precision to the stack */
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gimp_image_undo_push_image_precision (image, NULL);
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/* Set the new precision */
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g_object_set (image, "precision", precision, NULL);
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for (list = all_drawables, nth_drawable = 0;
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list;
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list = g_list_next (list), nth_drawable++)
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{
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GimpDrawable *drawable = list->data;
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gimp_drawable_convert_type (drawable, image,
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gimp_drawable_get_base_type (drawable),
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precision, TRUE);
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if (progress)
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gimp_progress_set_value (progress,
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(gdouble) nth_drawable / (gdouble) n_drawables);
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}
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g_list_free (all_drawables);
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/* convert the selection mask */
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{
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GimpChannel *mask = gimp_image_get_mask (image);
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GeglBuffer *buffer;
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gimp_image_undo_push_mask_precision (image, NULL, mask);
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buffer = gegl_buffer_new (GEGL_RECTANGLE (0, 0,
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gimp_image_get_width (image),
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gimp_image_get_height (image)),
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gimp_image_get_mask_format (image));
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gegl_buffer_copy (gimp_drawable_get_buffer (GIMP_DRAWABLE (mask)), NULL,
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buffer, NULL);
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gimp_drawable_set_buffer (GIMP_DRAWABLE (mask), FALSE, NULL, buffer);
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g_object_unref (buffer);
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nth_drawable++;
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if (progress)
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gimp_progress_set_value (progress,
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(gdouble) nth_drawable / (gdouble) n_drawables);
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}
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gimp_image_undo_group_end (image);
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gimp_image_precision_changed (image);
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g_object_thaw_notify (G_OBJECT (image));
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if (progress)
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gimp_progress_end (progress);
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}
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