0,0 → 1,157 |
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/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c |
* |
* Copyright (c) 1998-2011 Glenn Randers-Pehrson |
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
* |
* Last changed in libpng 1.5.0 [January 6, 2011] |
* |
* This code is released under the libpng license. |
* For conditions of distribution and use, see the disclaimer |
* and license in png.h |
*/ |
|
/* Define PNG_DEBUG at compile time for debugging information. Higher |
* numbers for PNG_DEBUG mean more debugging information. This has |
* only been added since version 0.95 so it is not implemented throughout |
* libpng yet, but more support will be added as needed. |
* |
* png_debug[1-2]?(level, message ,arg{0-2}) |
* Expands to a statement (either a simple expression or a compound |
* do..while(0) statement) that outputs a message with parameter |
* substitution if PNG_DEBUG is defined to 2 or more. If PNG_DEBUG |
* is undefined, 0 or 1 every png_debug expands to a simple expression |
* (actually ((void)0)). |
* |
* level: level of detail of message, starting at 0. A level 'n' |
* message is preceded by 'n' tab characters (not implemented |
* on Microsoft compilers unless PNG_DEBUG_FILE is also |
* defined, to allow debug DLL compilation with no standard IO). |
* message: a printf(3) style text string. A trailing '\n' is added |
* to the message. |
* arg: 0 to 2 arguments for printf(3) style substitution in message. |
*/ |
#ifndef PNGDEBUG_H |
#define PNGDEBUG_H |
/* These settings control the formatting of messages in png.c and pngerror.c */ |
/* Moved to pngdebug.h at 1.5.0 */ |
# ifndef PNG_LITERAL_SHARP |
# define PNG_LITERAL_SHARP 0x23 |
# endif |
# ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET |
# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b |
# endif |
# ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET |
# define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d |
# endif |
# ifndef PNG_STRING_NEWLINE |
# define PNG_STRING_NEWLINE "\n" |
# endif |
|
#ifdef PNG_DEBUG |
# if (PNG_DEBUG > 0) |
# if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) |
# include <crtdbg.h> |
# if (PNG_DEBUG > 1) |
# ifndef _DEBUG |
# define _DEBUG |
# endif |
# ifndef png_debug |
# define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE) |
# endif |
# ifndef png_debug1 |
# define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1) |
# endif |
# ifndef png_debug2 |
# define png_debug2(l,m,p1,p2) \ |
_RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2) |
# endif |
# endif |
# else /* PNG_DEBUG_FILE || !_MSC_VER */ |
# ifndef PNG_STDIO_SUPPORTED |
# include <stdio.h> /* not included yet */ |
# endif |
# ifndef PNG_DEBUG_FILE |
# define PNG_DEBUG_FILE stderr |
# endif /* PNG_DEBUG_FILE */ |
|
# if (PNG_DEBUG > 1) |
/* Note: ["%s"m PNG_STRING_NEWLINE] probably does not work on |
* non-ISO compilers |
*/ |
# ifdef __STDC__ |
# ifndef png_debug |
# define png_debug(l,m) \ |
do { \ |
int num_tabs=l; \ |
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ |
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":"")))); \ |
} while (0) |
# endif |
# ifndef png_debug1 |
# define png_debug1(l,m,p1) \ |
do { \ |
int num_tabs=l; \ |
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ |
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1); \ |
} while (0) |
# endif |
# ifndef png_debug2 |
# define png_debug2(l,m,p1,p2) \ |
do { \ |
int num_tabs=l; \ |
fprintf(PNG_DEBUG_FILE,"%s"m PNG_STRING_NEWLINE,(num_tabs==1 ? "\t" : \ |
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))),p1,p2); \ |
} while (0) |
# endif |
# else /* __STDC __ */ |
# ifndef png_debug |
# define png_debug(l,m) \ |
do { \ |
int num_tabs=l; \ |
char format[256]; \ |
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ |
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ |
m,PNG_STRING_NEWLINE); \ |
fprintf(PNG_DEBUG_FILE,format); \ |
} while (0) |
# endif |
# ifndef png_debug1 |
# define png_debug1(l,m,p1) \ |
do { \ |
int num_tabs=l; \ |
char format[256]; \ |
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ |
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ |
m,PNG_STRING_NEWLINE); \ |
fprintf(PNG_DEBUG_FILE,format,p1); \ |
} while (0) |
# endif |
# ifndef png_debug2 |
# define png_debug2(l,m,p1,p2) \ |
do { \ |
int num_tabs=l; \ |
char format[256]; \ |
snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ |
(num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ |
m,PNG_STRING_NEWLINE); \ |
fprintf(PNG_DEBUG_FILE,format,p1,p2); \ |
} while (0) |
# endif |
# endif /* __STDC __ */ |
# endif /* (PNG_DEBUG > 1) */ |
|
# endif /* _MSC_VER */ |
# endif /* (PNG_DEBUG > 0) */ |
#endif /* PNG_DEBUG */ |
#ifndef png_debug |
# define png_debug(l, m) ((void)0) |
#endif |
#ifndef png_debug1 |
# define png_debug1(l, m, p1) ((void)0) |
#endif |
#ifndef png_debug2 |
# define png_debug2(l, m, p1, p2) ((void)0) |
#endif |
#endif /* PNGDEBUG_H */ |