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/*
* Common library definitions for Cineon and DPX image files.
*
* 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_LIB_H_
#define _LOG_IMAGE_LIB_H_
#ifdef __cplusplus
extern "C" {
#endif
/*
* Image structure. You don't care what this is.
*/
typedef struct _Log_Image_File_t_ LogImageFile;
/*
* Magic numbers for normal and byte-swapped Cineon and Dpx files
*/
#define CINEON_FILE_MAGIC 0x802A5FD7
#define DPX_FILE_MAGIC 0x53445058
/*
* Image 8 bit <-> 10 bit conversion parameters.
*/
typedef struct {
float gamma;
int blackPoint;
int whitePoint;
int doLogarithm;
} LogImageByteConversionParameters;
/* int functions return 0 for OK */
void logImageSetVerbose(int);
LogImageFile* logImageOpenFromMem(unsigned char *buffer, unsigned int size, int cineon);
LogImageFile* logImageOpen(const char* filename, int cineon);
int logImageGetSize(const LogImageFile* logImage, int* xsize, int* ysize, int* channels);
LogImageFile* logImageCreate(const char* filename, int cineon, int xsize, int ysize, int channels);
/* get / set header block NYI */
int logImageGetHeader(LogImageFile*, int*, void**);
int logImageSetHeader(LogImageFile*, int, void*);
/* byte conversion routines for mapping logImage (usually) 10 bit values to 8 bit */
/* see Kodak docs for details... */
int logImageGetByteConversionDefaults(LogImageByteConversionParameters* params);
int logImageGetByteConversion(const LogImageFile* logImage, LogImageByteConversionParameters* params);
int logImageSetByteConversion(LogImageFile* logImage, const LogImageByteConversionParameters* params);
/* get/set scanline of converted bytes */
int logImageGetRowBytes(LogImageFile* logImage, unsigned short* row, int y);
int logImageSetRowBytes(LogImageFile* logImage, const unsigned short* row, int y);
/* closes file and deletes data */
void logImageClose(LogImageFile* logImage);
/* read file and dump header info */
void logImageDump(const char* filename);
#ifdef __cplusplus
}
#endif
#endif /* _LOG_IMAGE_LIB_H_ */
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