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153 lines
5.2 KiB
153 lines
5.2 KiB
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/* pngdebug.h - Debugging macros for libpng, also used in pngtest.c |
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* |
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* Copyright (c) 2018 Cosmin Truta |
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* Copyright (c) 1998-2002,2004,2006-2013 Glenn Randers-Pehrson |
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* Copyright (c) 1996-1997 Andreas Dilger |
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* 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_SHARP |
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# define PNG_LITERAL_SHARP 0x23 |
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# endif |
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# ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET |
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# define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b |
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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 0x5d |
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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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