PIKApp/plug-ins/file-psd/psd-util.h

108 lines
5.0 KiB
C
Raw Normal View History

2023-09-26 00:35:21 +02:00
/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* PIKA PSD Plug-in
* Copyright 2007 by John Marshall
*
* 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/>.
*/
#ifndef __PSD_UTIL_H__
#define __PSD_UTIL_H__
#define PSD_TELL(f) g_seekable_tell (G_SEEKABLE (input))
/*
* Set file read error
*/
void psd_set_error (GError **error);
gint psd_read (GInputStream *input,
gconstpointer data,
gint count,
GError **error);
gboolean psd_read_len (GInputStream *input,
gsize *data,
gint psd_version,
GError **error);
gboolean psd_seek (GInputStream *input,
goffset offset,
GSeekType type,
GError **error);
/*
* Reads a pascal string from the file padded to a multiple of mod_len
* and returns a utf-8 string.
*/
gchar * fread_pascal_string (gint32 *bytes_read,
gint32 *bytes_written,
guint16 mod_len,
GInputStream *input,
GError **error);
/*
* Converts utf-8 string to current locale and writes as pascal
* string with padding to a multiple of mod_len.
*/
gint32 fwrite_pascal_string (const gchar *src,
guint16 mod_len,
GOutputStream *output,
GError **error);
/*
* Reads a utf-16 string from the file padded to a multiple of mod_len
* and returns a utf-8 string.
*/
gchar * fread_unicode_string (gint32 *bytes_read,
gint32 *bytes_written,
guint16 mod_len,
gboolean ibm_pc_format,
GInputStream *input,
GError **error);
/*
* Converts utf-8 string to utf-16 and writes 4 byte length
* then string padding to multiple of mod_len.
*/
gint32 fwrite_unicode_string (const gchar *src,
guint16 mod_len,
GOutputStream *output,
GError **error);
gint decode_packbits (const gchar *src,
gchar *dst,
guint16 packed_len,
guint32 unpacked_len);
gchar * encode_packbits (const gchar *src,
guint32 unpacked_len,
guint16 *packed_len);
void psd_to_pika_blend_mode (PSDlayer *psd_layer,
LayerModeInfo *mode_info);
const gchar * pika_to_psd_blend_mode (const LayerModeInfo *mode_info);
PikaColorTag psd_to_pika_layer_color_tag (guint16 layer_color_tag);
guint16 pika_to_psd_layer_color_tag (PikaColorTag layer_color_tag);
#endif /* __PSD_UTIL_H__ */