/*
 *   Cineon image file format library definitions.
 *   Dpx file format structures.
 *
 *   This header file contains private details.
 *   User code should generally use cineonlib.h only.
 *
 *   Copyright 1999,2000,2001 David Hodson <hodsond@acm.org>
 *
 *   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 2 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, write to the Free Software
 *   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 *
 */

#ifndef _DPX_FILE_H_
#define _DPX_FILE_H_

#include "logImageCore.h"

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
    U32   magic_num;        /* magic number */
    U32   offset;           /* offset to image data in bytes */
    ASCII vers[8];          /* which header format version is being used (v1.0) */
    U32   file_size;        /* file size in bytes */
    U32   ditto_key;        /* I bet some people use this */
    U32   gen_hdr_size;     /* generic header length in bytes */
    U32   ind_hdr_size;     /* industry header length in bytes */
    U32   user_data_size;   /* user-defined data length in bytes */
    ASCII file_name[100];   /* image file name */
    ASCII create_date[24];  /* file creation date, yyyy:mm:dd:hh:mm:ss:LTZ */
    ASCII creator[100];
    ASCII project[200];
    ASCII copyright[200];
    U32   key;              /* encryption key, FFFFFFF = unencrypted */
    ASCII Reserved[104];    /* reserved field TBD (need to pad) */
} DpxFileInformation;

typedef struct {
    U32    signage;
    U32    ref_low_data;     /* reference low data code value */
    R32    ref_low_quantity; /* reference low quantity represented */
    U32    ref_high_data;    /* reference high data code value */
    R32    ref_high_quantity;/* reference high quantity represented */
    U8     designator1;
    U8     transfer_characteristics;
    U8     colourimetry;
    U8     bits_per_pixel;
    U16    packing;
    U16    encoding;
    U32    data_offset;
    U32    line_padding;
    U32    channel_padding;
    ASCII  description[32];
} DpxChannelInformation;

typedef struct {
    U16    orientation;
    U16    channels_per_image;
    U32    pixels_per_line;
    U32    lines_per_image;
    DpxChannelInformation channel[8];
    ASCII  reserved[52];
} DpxImageInformation;

typedef struct {
    U32   x_offset;
    U32   y_offset;
    R32   x_centre;
    R32   y_centre;
    U32   x_original_size;
    U32   y_original_size;
    ASCII file_name[100];
    ASCII creation_time[24];
    ASCII input_device[32];
    ASCII input_serial_number[32];
    U16   border_validity[4];
    U32   pixel_aspect_ratio[2]; /* h:v */
    ASCII reserved[28];
} DpxOriginationInformation;

typedef struct {
    ASCII film_manufacturer_id[2];
    ASCII film_type[2];
    ASCII edge_code_perforation_offset[2];
    ASCII edge_code_prefix[6];
    ASCII edge_code_count[4];
    ASCII film_format[32];
    U32   frame_position;
    U32   sequence_length;
    U32   held_count;
    R32   frame_rate;
    R32   shutter_angle;
    ASCII frame_identification[32];
    ASCII slate_info[100];
    ASCII reserved[56];
} DpxMPIInformation;

typedef struct {
  DpxFileInformation fileInfo;
  DpxImageInformation imageInfo;
  DpxOriginationInformation originInfo;
  DpxMPIInformation filmHeader;
} DpxMainHeader;

#ifdef __cplusplus
}
#endif

#endif /* _DPX_FILE_H_ */
