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GitHub Repository: hrydgard/ppsspp
Path: blob/master/ext/libpng17/pngdebug.h
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/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
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 *
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 * Last changed in libpng 1.6.8 [December 19, 2013]
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 * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
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 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
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 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
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 *
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 * This code is released under the libpng license.
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 * For conditions of distribution and use, see the disclaimer
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 * and license in png.h
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 */
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/* Define PNG_DEBUG at compile time for debugging information.  Higher
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 * numbers for PNG_DEBUG mean more debugging information.  This has
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 * only been added since version 0.95 so it is not implemented throughout
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 * libpng yet, but more support will be added as needed.
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 *
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 * png_debug[1-2]?(level, message ,arg{0-2})
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 *   Expands to a statement (either a simple expression or a compound
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 *   do..while(0) statement) that outputs a message with parameter
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 *   substitution if PNG_DEBUG is defined to 2 or more.  If PNG_DEBUG
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 *   is undefined, 0 or 1 every png_debug expands to a simple expression
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 *   (actually ((void)0)).
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 *
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 *   level: level of detail of message, starting at 0.  A level 'n'
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 *          message is preceded by 'n' 3-space indentations (not implemented
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 *          on Microsoft compilers unless PNG_DEBUG_FILE is also
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 *          defined, to allow debug DLL compilation with no standard IO).
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 *   message: a printf(3) style text string.  A trailing '\n' is added
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 *            to the message.
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 *   arg: 0 to 2 arguments for printf(3) style substitution in message.
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 */
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#ifndef PNGDEBUG_H
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#define PNGDEBUG_H
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/* These settings control the formatting of messages in png.c and pngerror.c */
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/* Moved to pngdebug.h at 1.5.0 */
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#  ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET
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#    define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5bU
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#  endif
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#  ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET
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#    define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5dU
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#  endif
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#  ifndef PNG_STRING_NEWLINE
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#    define PNG_STRING_NEWLINE "\n"
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#  endif
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#ifdef PNG_DEBUG
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#  if (PNG_DEBUG > 0)
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#    if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER)
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#      include <crtdbg.h>
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#      if (PNG_DEBUG > 1)
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#        ifndef _DEBUG
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#          define _DEBUG
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#        endif
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#        ifndef png_debug
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#          define png_debug(l,m)  _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE)
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#        endif
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#        ifndef png_debug1
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#          define png_debug1(l,m,p1)  _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1)
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#        endif
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#        ifndef png_debug2
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#          define png_debug2(l,m,p1,p2) \
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             _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2)
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#        endif
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#      endif
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#    else /* PNG_DEBUG_FILE || !_MSC_VER */
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#      ifndef PNG_STDIO_SUPPORTED
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#        include <stdio.h> /* not included yet */
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#      endif
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#      ifndef PNG_DEBUG_FILE
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#        define PNG_DEBUG_FILE stderr
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#      endif /* PNG_DEBUG_FILE */
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#      if (PNG_DEBUG > 1)
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#        ifdef __STDC__
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#          ifndef png_debug
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#            define png_debug(l,m) \
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       do { \
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       int num_tabs=l; \
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       fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? "   " : \
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         (num_tabs==2 ? "      " : (num_tabs>2 ? "         " : "")))); \
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       } while (0)
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#          endif
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#          ifndef png_debug1
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#            define png_debug1(l,m,p1) \
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       do { \
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       int num_tabs=l; \
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       fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? "   " : \
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         (num_tabs==2 ? "      " : (num_tabs>2 ? "         " : ""))),p1); \
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       } while (0)
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#          endif
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#          ifndef png_debug2
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#            define png_debug2(l,m,p1,p2) \
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       do { \
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       int num_tabs=l; \
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       fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? "   " : \
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         (num_tabs==2 ? "      " : (num_tabs>2 ? "         " : ""))),p1,p2);\
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       } while (0)
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#          endif
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#        else /* __STDC __ */
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#          ifndef png_debug
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#            define png_debug(l,m) \
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       do { \
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       int num_tabs=l; \
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       char format[256]; \
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       snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
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         (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
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         m,PNG_STRING_NEWLINE); \
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       fprintf(PNG_DEBUG_FILE,format); \
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       } while (0)
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#          endif
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#          ifndef png_debug1
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#            define png_debug1(l,m,p1) \
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       do { \
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       int num_tabs=l; \
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       char format[256]; \
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       snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
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         (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
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         m,PNG_STRING_NEWLINE); \
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       fprintf(PNG_DEBUG_FILE,format,p1); \
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       } while (0)
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#          endif
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#          ifndef png_debug2
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#            define png_debug2(l,m,p1,p2) \
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       do { \
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       int num_tabs=l; \
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       char format[256]; \
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       snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \
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         (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \
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         m,PNG_STRING_NEWLINE); \
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       fprintf(PNG_DEBUG_FILE,format,p1,p2); \
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       } while (0)
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#          endif
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#        endif /* __STDC __ */
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#      endif /* (PNG_DEBUG > 1) */
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#    endif /* _MSC_VER */
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#  endif /* (PNG_DEBUG > 0) */
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#endif /* PNG_DEBUG */
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#ifndef png_debug
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#  define png_debug(l, m) ((void)0)
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#endif
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#ifndef png_debug1
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#  define png_debug1(l, m, p1) ((void)0)
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#endif
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#ifndef png_debug2
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#  define png_debug2(l, m, p1, p2) ((void)0)
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#endif
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#endif /* PNGDEBUG_H */
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CoCalc provides the best real-time collaborative environment for Jupyter Notebooks, LaTeX documents, and SageMath, scalable from individual users to large groups and classes!

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