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/*
* Cineon image file format library definitions.
* Cineon and DPX common structures.
*
* This header file contains private details.
* User code should generally use cineonlib.h and dpxlib.h only.
* Hmm. I thought the two formats would have more in common!
*
* 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 _LOG_IMAGE_CORE_H_
#define _LOG_IMAGE_CORE_H_
#include <stdio.h>
#include "logImageLib.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef int (GetRowFn)(LogImageFile* logImage, unsigned short* row, int lineNum);
typedef int (SetRowFn)(LogImageFile* logImage, const unsigned short* row, int lineNum);
typedef void (CloseFn)(LogImageFile* logImage);
struct _Log_Image_File_t_
{
/* specified in header */
int width;
int height;
int depth;
int bitsPerPixel;
int imageOffset;
/* file buffer, measured in longwords (4 byte) */
int lineBufferLength;
unsigned int* lineBuffer;
/* pixel buffer, holds 10 bit pixel values */
unsigned short* pixelBuffer;
int pixelBufferUsed;
/* io stuff */
FILE* file;
int reading;
int fileYPos;
/* byte conversion stuff */
LogImageByteConversionParameters params;
#if 0
float gamma;
int blackPoint;
int whitePoint;
#endif
unsigned char lut10[1024];
unsigned short lut8[256];
/* pixel access functions */
GetRowFn* getRow;
SetRowFn* setRow;
CloseFn* close;
unsigned char *membuffer;
unsigned long membuffersize;
unsigned char *memcursor;
};
void setupLut(LogImageFile*);
int pixelsToLongs(int numPixels);
/* typedefs used in original docs */
/* note size assumptions! */
typedef unsigned int U32;
typedef unsigned short U16;
typedef unsigned char U8;
typedef signed int S32;
typedef float R32;
typedef char ASCII;
R32 htonf(R32 f);
R32 ntohf(R32 f);
R32 undefined();
U16 reverseU16(U16 value);
U32 reverseU32(U32 value);
R32 reverseR32(R32 value);
#ifdef __cplusplus
}
#endif
#endif /* _LOG_IMAGE_CORE_H_ */
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