gtk/gdk/loaders/gdkpngprivate.h
Matthias Clasen 08d1353cde loaders: Make it possible to load png options
We want to store some metadata in our symbolic pngs, so make it
possible to get options when loading a png, along with the texture.

Update all callers.
2024-04-28 23:42:02 -04:00

43 lines
1.3 KiB
C

/* GDK - The GIMP Drawing Kit
* Copyright (C) 2021 Red Hat, Inc.
*
* 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 2 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 <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "gdktexture.h"
#include <gio/gio.h>
#define PNG_SIGNATURE "\x89PNG"
GdkTexture *gdk_load_png (GBytes *bytes,
GHashTable *options,
GError **error);
GBytes *gdk_save_png (GdkTexture *texture);
static inline gboolean
gdk_is_png (GBytes *bytes)
{
const char *data;
gsize size;
data = g_bytes_get_data (bytes, &size);
return size > strlen (PNG_SIGNATURE) &&
memcmp (data, PNG_SIGNATURE, strlen (PNG_SIGNATURE)) == 0;
}