PIKApp/libpika/pikaimagecolorprofile.c

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2023-09-26 00:35:21 +02:00
/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-2003 Peter Mattis and Spencer Kimball
*
* pikaimagecolorprofile.c
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "pika.h"
/**
* pika_image_get_color_profile:
* @image: The image.
*
* Returns the image's color profile
*
* This procedure returns the image's color profile, or NULL if the
* image has no color profile assigned.
*
* Returns: (transfer full): The image's color profile. The returned
* value must be freed with g_object_unref().
*
* Since: 2.10
**/
PikaColorProfile *
pika_image_get_color_profile (PikaImage *image)
{
GBytes *data;
data = _pika_image_get_color_profile (image);
if (data)
{
PikaColorProfile *profile;
profile = pika_color_profile_new_from_icc_profile (g_bytes_get_data (data, NULL),
g_bytes_get_size (data),
NULL);
g_bytes_unref (data);
return profile;
}
return NULL;
}
/**
* pika_image_set_color_profile:
* @image: The image.
* @profile: (nullable): A #PikaColorProfile, or %NULL.
*
* Sets the image's color profile
*
* This procedure sets the image's color profile.
*
* Returns: %TRUE on success.
*
* Since: 2.10
**/
gboolean
pika_image_set_color_profile (PikaImage *image,
PikaColorProfile *profile)
{
const guint8 *data = NULL;
GBytes *bytes = NULL;
gboolean ret;
g_return_val_if_fail (profile == NULL || PIKA_IS_COLOR_PROFILE (profile),
FALSE);
if (profile)
{
gsize l;
data = pika_color_profile_get_icc_profile (profile, &l);
bytes = g_bytes_new_static (data, l);
}
ret = _pika_image_set_color_profile (image, bytes);
g_bytes_unref (bytes);
return ret;
}
/**
* pika_image_get_simulation_profile:
* @image: The image.
*
* Returns the image's simulation color profile
*
* This procedure returns the image's simulation color profile, or NULL if
* the image has no simulation color profile assigned.
*
* Returns: (transfer full): The image's simulation color profile. The
* returned value must be freed with g_object_unref().
*
* Since: 3.0
**/
PikaColorProfile *
pika_image_get_simulation_profile (PikaImage *image)
{
GBytes *data;
data = _pika_image_get_simulation_profile (image);
if (data)
{
PikaColorProfile *profile;
profile = pika_color_profile_new_from_icc_profile (g_bytes_get_data (data, NULL),
g_bytes_get_size (data),
NULL);
g_bytes_unref (data);
return profile;
}
return NULL;
}
/**
* pika_image_set_simulation_profile:
* @image: The image.
* @profile: A #PikaColorProfile, or %NULL.
*
* Sets the image's simulation color profile
*
* This procedure sets the image's simulation color profile.
*
* Returns: %TRUE on success.
*
* Since: 3.0
**/
gboolean
pika_image_set_simulation_profile (PikaImage *image,
PikaColorProfile *profile)
{
const guint8 *data = NULL;
GBytes *bytes = NULL;
gboolean ret;
g_return_val_if_fail (profile == NULL || PIKA_IS_COLOR_PROFILE (profile),
FALSE);
if (profile)
{
gsize l;
data = pika_color_profile_get_icc_profile (profile, &l);
bytes = g_bytes_new_static (data, l);
}
ret = _pika_image_set_simulation_profile (image, bytes);
g_bytes_unref (bytes);
return ret;
}
/**
* pika_image_get_effective_color_profile:
* @image: The image.
*
* Returns the color profile that is used for the image.
*
* This procedure returns the color profile that is actually used for
* this image, which is the profile returned by
* pika_image_get_color_profile() if the image has a profile assigned,
* or the default RGB profile from preferences if no profile is
* assigned to the image. If there is no default RGB profile configured
* in preferences either, a generated default RGB profile is returned.
*
* Returns: (transfer full): The color profile. The returned value must
* be freed with g_object_unref().
*
* Since: 2.10
**/
PikaColorProfile *
pika_image_get_effective_color_profile (PikaImage *image)
{
GBytes *data;
data = _pika_image_get_effective_color_profile (image);
if (data)
{
PikaColorProfile *profile;
profile = pika_color_profile_new_from_icc_profile (g_bytes_get_data (data, NULL),
g_bytes_get_size (data),
NULL);
g_bytes_unref (data);
return profile;
}
return NULL;
}
/**
* pika_image_convert_color_profile:
* @image: The image.
* @profile: The color profile to convert to.
* @intent: Rendering intent.
* @bpc: Black point compensation.
*
* Convert the image's layers to a color profile
*
* This procedure converts from the image's color profile (or the
* default RGB profile if none is set) to the given color profile. Only
* RGB color profiles are accepted.
*
* Returns: TRUE on success.
*
* Since: 2.10
**/
gboolean
pika_image_convert_color_profile (PikaImage *image,
PikaColorProfile *profile,
PikaColorRenderingIntent intent,
gboolean bpc)
{
const guint8 *data = NULL;
GBytes *bytes = NULL;
gboolean ret;
g_return_val_if_fail (profile == NULL || PIKA_IS_COLOR_PROFILE (profile),
FALSE);
if (profile)
{
gsize l;
data = pika_color_profile_get_icc_profile (profile, &l);
bytes = g_bytes_new_static (data, l);
}
ret = _pika_image_convert_color_profile (image, bytes, intent, bpc);
g_bytes_unref (bytes);
return ret;
}