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/*
* Copyright (c) 1999-2000 Image Power, Inc. and the University of
* British Columbia.
* Copyright (c) 2001-2002 Michael David Adams.
* All rights reserved.
*/
/* __START_OF_JASPER_LICENSE__
*
* JasPer License Version 2.0
*
* Copyright (c) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __END_OF_JASPER_LICENSE__
*/
/*
* Portable Pixmap/Graymap Format Support
*
* $Id$
*/
#ifndef PNM_COD_H
#define PNM_COD_H
/******************************************************************************\
* Includes.
\******************************************************************************/
#include "jasper/jas_types.h"
/******************************************************************************\
* Constants.
\******************************************************************************/
/* Magic numbers. */
#define PNM_MAGIC_TXTPBM 0x5031 /* Text Portable BitMap (P1) */
#define PNM_MAGIC_TXTPGM 0x5032 /* Text Portable GrayMap (P2) */
#define PNM_MAGIC_TXTPPM 0x5033 /* Text Portable PixMap (P3) */
#define PNM_MAGIC_BINPBM 0x5034 /* Binary Portable BitMap (P4) */
#define PNM_MAGIC_BINPGM 0x5035 /* Binary Portable GrayMap (P5) */
#define PNM_MAGIC_BINPPM 0x5036 /* Binary Portable PixMap (P6) */
#define PNM_MAGIC_PAM 0x5037 /* PAM (P7) */
/* Type of image data. */
#define PNM_TYPE_PPM 0 /* PixMap */
#define PNM_TYPE_PGM 1 /* GrayMap */
#define PNM_TYPE_PBM 2 /* BitMap */
/* Format of image data. */
#define PNM_FMT_TXT 0 /* Text */
#define PNM_FMT_BIN 1 /* Binary */
#define PNM_MAXLINELEN 79
#define PNM_TUPLETYPE_UNKNOWN 0
#define PNM_TUPLETYPE_MONO 1
#define PNM_TUPLETYPE_GRAY 2
#define PNM_TUPLETYPE_GRAYA 3
#define PNM_TUPLETYPE_RGB 4
#define PNM_TUPLETYPE_RGBA 5
/******************************************************************************\
* Types.
\******************************************************************************/
/* File header. */
typedef struct {
int magic;
/* The magic number. */
int width;
/* The image width. */
int height;
/* The image height. */
int numcmpts;
int maxval;
/* The maximum allowable sample value. */
#if 0
int tupletype;
#endif
bool sgnd;
/* The sample data is signed. */
} pnm_hdr_t;
/******************************************************************************\
* Functions.
\******************************************************************************/
int pnm_type(uint_fast16_t magic);
/* Determine type (i.e., PGM or PPM) from magic number. */
int pnm_fmt(uint_fast16_t magic);
/* Determine format (i.e., text or binary) from magic number. */
int pnm_maxvaltodepth(uint_fast32_t maxval);
/* Determine depth (i.e., precision) from maximum value. */
#define PNM_ONES(n) \
(((n) < 32) ? ((1UL << (n)) - 1) : 0xffffffffUL)
#endif
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