+++ /dev/null
-/*---------------------------------------------------------------------------
-
- rpng2 - progressive-model PNG display program readpng2.h
-
- ---------------------------------------------------------------------------
-
- Copyright (c) 1998-2001 Greg Roelofs. All rights reserved.
-
- This software is provided "as is," without warranty of any kind,
- express or implied. In no event shall the author or contributors
- be held liable for any damages arising in any way from the use of
- this software.
-
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute
- it freely, subject to the following restrictions:
-
- 1. Redistributions of source code must retain the above copyright
- notice, disclaimer, and this list of conditions.
- 2. Redistributions in binary form must reproduce the above copyright
- notice, disclaimer, and this list of conditions in the documenta-
- tion and/or other materials provided with the distribution.
- 3. All advertising materials mentioning features or use of this
- software must display the following acknowledgment:
-
- This product includes software developed by Greg Roelofs
- and contributors for the book, "PNG: The Definitive Guide,"
- published by O'Reilly and Associates.
-
- ---------------------------------------------------------------------------*/
-
-#ifndef TRUE
-# define TRUE 1
-# define FALSE 0
-#endif
-
-#ifndef MAX
-# define MAX(a,b) ((a) > (b)? (a) : (b))
-# define MIN(a,b) ((a) < (b)? (a) : (b))
-#endif
-
-#ifdef DEBUG
-# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);}
-#else
-# define Trace(x) ;
-#endif
-
-typedef unsigned char uch;
-typedef unsigned short ush;
-typedef unsigned long ulg;
-
-typedef struct _mainprog_info {
- double display_exponent;
- ulg width;
- ulg height;
- void *png_ptr;
- void *info_ptr;
- void (*mainprog_init)(void);
- void (*mainprog_display_row)(ulg row_num);
- void (*mainprog_finish_display)(void);
- uch *image_data;
- uch **row_pointers;
- jmp_buf jmpbuf;
- int passes; /* not used */
- int pass;
- int rowbytes;
- int channels;
- int need_bgcolor;
-#if (defined(__i386__) || defined(_M_IX86))
- int nommxfilters;
- int nommxcombine;
- int nommxinterlace;
-#endif
- int done;
- uch bg_red;
- uch bg_green;
- uch bg_blue;
-} mainprog_info;
-
-
-/* prototypes for public functions in readpng2.c */
-
-void readpng2_version_info(void);
-
-int readpng2_check_sig(uch *sig, int num);
-
-int readpng2_init(mainprog_info *mainprog_ptr);
-
-int readpng2_decode_data(mainprog_info *mainprog_ptr, uch *rawbuf, ulg length);
-
-void readpng2_cleanup(mainprog_info *mainprog_ptr);