kc3-lang/libpng/pngdebug.h

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• Hash : 85acd919
  Author :
  Date : 2018-12-01T09:36:00
  

  [master] Imported from libpng-1.6.36.tar
  

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• pngdebug.h

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  /* pngdebug.h - Debugging macros for libpng, also used in pngtest.c
   *
   * Copyright (c) 2018 Cosmin Truta
   * Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson
   * Copyright (c) 1996-1997 Andreas Dilger
   * Copyright (c) 1995-1996 Guy Eric Schalnat, Group 42, Inc.
   *
   * 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' 3-space indentations (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)
  #        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 ? "   " : \
           (num_tabs==2 ? "      " : (num_tabs>2 ? "         " : "")))); \
         } 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 ? "   " : \
           (num_tabs==2 ? "      " : (num_tabs>2 ? "         " : ""))),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 ? "   " : \
           (num_tabs==2 ? "      " : (num_tabs>2 ? "         " : ""))),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 */
  

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