75 lines
2.5 KiB
C
75 lines
2.5 KiB
C
/* PIKA - Photo and Image Kooker Application
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* a rebranding of The GNU Image Manipulation Program (created with heckimp)
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* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
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*
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* Original copyright, applying to most contents (license remains unchanged):
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef __JPEG_H__
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#define __JPEG_H__
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#define LOAD_PROC "file-jpeg-load"
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#define LOAD_THUMB_PROC "file-jpeg-load-thumb"
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#define SAVE_PROC "file-jpeg-save"
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#define PLUG_IN_BINARY "file-jpeg"
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#define PLUG_IN_ROLE "pika-file-jpeg"
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/* headers used in some APPn markers */
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#define JPEG_APP_HEADER_EXIF "Exif\0\0"
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#define JPEG_APP_HEADER_XMP "http://ns.adobe.com/xap/1.0/"
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typedef struct my_error_mgr
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{
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struct jpeg_error_mgr pub; /* "public" fields */
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#ifdef __ia64__
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/* Ugh, the jmp_buf field needs to be 16-byte aligned on ia64 and some
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* glibc/icc combinations don't guarantee this. So we pad. See bug #138357
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* for details.
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*/
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long double dummy;
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#endif
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jmp_buf setjmp_buffer; /* for return to caller */
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} *my_error_ptr;
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typedef enum
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{
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JPEG_SUBSAMPLING_2x2_1x1_1x1 = 0, /* smallest file */
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JPEG_SUBSAMPLING_2x1_1x1_1x1 = 1, /* 4:2:2 */
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JPEG_SUBSAMPLING_1x1_1x1_1x1 = 2,
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JPEG_SUBSAMPLING_1x2_1x1_1x1 = 3
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} JpegSubsampling;
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extern PikaImage * volatile preview_image;
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extern PikaLayer * preview_layer;
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extern gboolean undo_touched;
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extern gboolean load_interactive;
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extern PikaDisplay *display;
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extern gboolean separate_display;
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void destroy_preview (void);
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void my_error_exit (j_common_ptr cinfo);
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void my_emit_message (j_common_ptr cinfo,
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int msg_level);
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void my_output_message (j_common_ptr cinfo);
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#endif /* __JPEG_H__ */
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