gimp/app/core/gimpdrawable-convert.c

125 lines
4.1 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
* Copyright (C) 1997-2004 Adam D. Moss <adam@gimp.org>
*
* 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 <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <cairo.h>
#include <gegl.h>
#include "libgimpcolor/gimpcolor.h"
#include "core-types.h"
#include "gegl/gimp-gegl-utils.h"
#include "gimpdrawable.h"
#include "gimpdrawable-convert.h"
#include "gimpimage.h"
#include "gimpimage-colormap.h"
void
gimp_drawable_convert_rgb (GimpDrawable *drawable,
GimpImage *dest_image,
gboolean push_undo)
{
GimpImageType type;
GeglBuffer *dest_buffer;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_IMAGE (dest_image));
g_return_if_fail (! gimp_drawable_is_rgb (drawable));
type = GIMP_RGB_IMAGE;
if (gimp_drawable_has_alpha (drawable))
type = GIMP_IMAGE_TYPE_WITH_ALPHA (type);
dest_buffer =
gimp_gegl_buffer_new (GIMP_GEGL_RECT (0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable))),
gimp_image_get_format (dest_image, type));
gegl_buffer_copy (gimp_drawable_get_buffer (drawable), NULL,
dest_buffer, NULL);
gimp_drawable_set_buffer (drawable, push_undo, NULL, dest_buffer);
g_object_unref (dest_buffer);
}
void
gimp_drawable_convert_grayscale (GimpDrawable *drawable,
GimpImage *dest_image,
gboolean push_undo)
{
GimpImageType type;
GeglBuffer *dest_buffer;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_IMAGE (dest_image));
g_return_if_fail (! gimp_drawable_is_gray (drawable));
type = GIMP_GRAY_IMAGE;
if (gimp_drawable_has_alpha (drawable))
type = GIMP_IMAGE_TYPE_WITH_ALPHA (type);
dest_buffer =
gimp_gegl_buffer_new (GIMP_GEGL_RECT (0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable))),
gimp_image_get_format (dest_image, type));
gegl_buffer_copy (gimp_drawable_get_buffer (drawable), NULL,
dest_buffer, NULL);
gimp_drawable_set_buffer (drawable, push_undo, NULL, dest_buffer);
g_object_unref (dest_buffer);
}
void
gimp_drawable_convert_indexed (GimpDrawable *drawable,
GimpImage *dest_image,
gboolean push_undo)
{
GeglBuffer *dest_buffer;
const Babl *format;
g_return_if_fail (GIMP_IS_DRAWABLE (drawable));
g_return_if_fail (GIMP_IS_IMAGE (dest_image));
g_return_if_fail (! gimp_drawable_is_gray (drawable));
if (gimp_drawable_has_alpha (drawable))
format = gimp_image_colormap_get_rgba_format (dest_image);
else
format = gimp_image_colormap_get_rgb_format (dest_image);
dest_buffer =
gimp_gegl_buffer_new (GIMP_GEGL_RECT (0, 0,
gimp_item_get_width (GIMP_ITEM (drawable)),
gimp_item_get_height (GIMP_ITEM (drawable))),
format);
gegl_buffer_copy (gimp_drawable_get_buffer (drawable), NULL,
dest_buffer, NULL);
gimp_drawable_set_buffer (drawable, push_undo, NULL, dest_buffer);
g_object_unref (dest_buffer);
}