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Diffstat (limited to 'app/core/gimpimage-convert-type.c')
| -rw-r--r-- | app/core/gimpimage-convert-type.c | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/app/core/gimpimage-convert-type.c b/app/core/gimpimage-convert-type.c new file mode 100644 index 0000000..4298a49 --- /dev/null +++ b/app/core/gimpimage-convert-type.c @@ -0,0 +1,162 @@ +/* GIMP - The GNU Image Manipulation Program + * Copyright (C) 1995 Spencer Kimball and Peter Mattis + * + * 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 <cairo.h> +#include <gdk-pixbuf/gdk-pixbuf.h> +#include <gegl.h> + +#include "libgimpcolor/gimpcolor.h" + +#include "core-types.h" + +#include "gegl/gimp-babl.h" + +#include "gimp.h" +#include "gimpdrawable.h" +#include "gimpimage.h" +#include "gimpimage-color-profile.h" +#include "gimpimage-colormap.h" +#include "gimpimage-convert-type.h" +#include "gimpimage-undo.h" +#include "gimpimage-undo-push.h" +#include "gimpobjectqueue.h" +#include "gimpprogress.h" + +#include "gimp-intl.h" + + +gboolean +gimp_image_convert_type (GimpImage *image, + GimpImageBaseType new_type, + GimpColorProfile *dest_profile, + GimpProgress *progress, + GError **error) +{ + GimpImageBaseType old_type; + const Babl *new_layer_format; + GimpObjectQueue *queue; + GList *all_layers; + GimpDrawable *drawable; + const gchar *undo_desc = NULL; + + g_return_val_if_fail (GIMP_IS_IMAGE (image), FALSE); + g_return_val_if_fail (new_type != gimp_image_get_base_type (image), FALSE); + g_return_val_if_fail (new_type != GIMP_INDEXED, FALSE); + g_return_val_if_fail (gimp_babl_is_valid (new_type, + gimp_image_get_precision (image)), + FALSE); + g_return_val_if_fail (dest_profile == NULL || GIMP_IS_COLOR_PROFILE (dest_profile), + FALSE); + g_return_val_if_fail (progress == NULL || GIMP_IS_PROGRESS (progress), FALSE); + g_return_val_if_fail (error == NULL || *error == NULL, FALSE); + + new_layer_format = gimp_babl_format (new_type, + gimp_image_get_precision (image), + TRUE); + + if (dest_profile && + ! gimp_image_validate_color_profile_by_format (new_layer_format, + dest_profile, + NULL, error)) + { + return FALSE; + } + + switch (new_type) + { + case GIMP_RGB: + undo_desc = C_("undo-type", "Convert Image to RGB"); + break; + + case GIMP_GRAY: + undo_desc = C_("undo-type", "Convert Image to Grayscale"); + break; + + default: + g_return_val_if_reached (FALSE); + } + + gimp_set_busy (image->gimp); + + queue = gimp_object_queue_new (progress); + progress = GIMP_PROGRESS (queue); + + all_layers = gimp_image_get_layer_list (image); + gimp_object_queue_push_list (queue, all_layers); + g_list_free (all_layers); + + g_object_freeze_notify (G_OBJECT (image)); + + gimp_image_undo_group_start (image, GIMP_UNDO_GROUP_IMAGE_CONVERT, + undo_desc); + + /* Push the image type to the stack */ + gimp_image_undo_push_image_type (image, NULL); + + /* Set the new base type */ + old_type = gimp_image_get_base_type (image); + + g_object_set (image, "base-type", new_type, NULL); + + /* When converting to/from GRAY, convert to the new type's builtin + * profile if none was passed. + */ + if (old_type == GIMP_GRAY || + new_type == GIMP_GRAY) + { + if (! dest_profile && gimp_image_get_color_profile (image)) + dest_profile = gimp_image_get_builtin_color_profile (image); + } + + while ((drawable = gimp_object_queue_pop (queue))) + { + gimp_drawable_convert_type (drawable, image, + new_type, + gimp_drawable_get_precision (drawable), + gimp_drawable_has_alpha (drawable), + dest_profile, + GEGL_DITHER_NONE, GEGL_DITHER_NONE, + TRUE, progress); + } + + if (old_type == GIMP_INDEXED) + gimp_image_unset_colormap (image, TRUE); + + /* When converting to/from GRAY, set the new profile. + */ + if (old_type == GIMP_GRAY || + new_type == GIMP_GRAY) + { + if (gimp_image_get_color_profile (image)) + gimp_image_set_color_profile (image, dest_profile, NULL); + else + gimp_color_managed_profile_changed (GIMP_COLOR_MANAGED (image)); + } + + gimp_image_undo_group_end (image); + + gimp_image_mode_changed (image); + g_object_thaw_notify (G_OBJECT (image)); + + g_object_unref (queue); + + gimp_unset_busy (image->gimp); + + return TRUE; +} |