gimp/plug-ins/file-jpeg/jpeg.h

74 lines
2.4 KiB
C

/* 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 <http://www.gnu.org/licenses/>.
*/
#ifndef __JPEG_H__
#define __JPEG_H__
#define LOAD_PROC "file-jpeg-load"
#define LOAD_THUMB_PROC "file-jpeg-load-thumb"
#define SAVE_PROC "file-jpeg-save"
#define PLUG_IN_BINARY "file-jpeg"
#define PLUG_IN_ROLE "gimp-file-jpeg"
/* headers used in some APPn markers */
#define JPEG_APP_HEADER_EXIF "Exif\0\0"
#define JPEG_APP_HEADER_XMP "http://ns.adobe.com/xap/1.0/"
typedef struct my_error_mgr
{
struct jpeg_error_mgr pub; /* "public" fields */
#ifdef __ia64__
/* Ugh, the jmp_buf field needs to be 16-byte aligned on ia64 and some
* glibc/icc combinations don't guarantee this. So we pad. See bug #138357
* for details.
*/
long double dummy;
#endif
jmp_buf setjmp_buffer; /* for return to caller */
} *my_error_ptr;
typedef enum
{
JPEG_SUBSAMPLING_2x2_1x1_1x1 = 0, /* smallest file */
JPEG_SUBSAMPLING_2x1_1x1_1x1 = 1, /* 4:2:2 */
JPEG_SUBSAMPLING_1x1_1x1_1x1 = 2,
JPEG_SUBSAMPLING_1x2_1x1_1x1 = 3
} JpegSubsampling;
extern gint32 volatile preview_image_ID;
extern gint32 preview_layer_ID;
extern gboolean undo_touched;
extern gboolean load_interactive;
extern gint32 display_ID;
extern gchar *image_comment;
extern gint orig_quality;
extern JpegSubsampling orig_subsmp;
extern gint num_quant_tables;
void destroy_preview (void);
void my_error_exit (j_common_ptr cinfo);
void my_emit_message (j_common_ptr cinfo,
int msg_level);
void my_output_message (j_common_ptr cinfo);
#endif /* __JPEG_H__ */