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comparison: media/libpng/pngdebug.h
media/libpng/pngdebug.h
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- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:2b3803062902 |
|---|---|
| 1 | |
| 2 /* pngdebug.h - Debugging macros for libpng, also used in pngtest.c | |
| 3 * | |
| 4 * Copyright (c) 1998-2013 Glenn Randers-Pehrson | |
| 5 * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) | |
| 6 * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) | |
| 7 * | |
| 8 * Last changed in libpng 1.6.8 [December 19, 2013] | |
| 9 * | |
| 10 * This code is released under the libpng license. | |
| 11 * For conditions of distribution and use, see the disclaimer | |
| 12 * and license in png.h | |
| 13 */ | |
| 14 | |
| 15 /* Define PNG_DEBUG at compile time for debugging information. Higher | |
| 16 * numbers for PNG_DEBUG mean more debugging information. This has | |
| 17 * only been added since version 0.95 so it is not implemented throughout | |
| 18 * libpng yet, but more support will be added as needed. | |
| 19 * | |
| 20 * png_debug[1-2]?(level, message ,arg{0-2}) | |
| 21 * Expands to a statement (either a simple expression or a compound | |
| 22 * do..while(0) statement) that outputs a message with parameter | |
| 23 * substitution if PNG_DEBUG is defined to 2 or more. If PNG_DEBUG | |
| 24 * is undefined, 0 or 1 every png_debug expands to a simple expression | |
| 25 * (actually ((void)0)). | |
| 26 * | |
| 27 * level: level of detail of message, starting at 0. A level 'n' | |
| 28 * message is preceded by 'n' 3-space indentations (not implemented | |
| 29 * on Microsoft compilers unless PNG_DEBUG_FILE is also | |
| 30 * defined, to allow debug DLL compilation with no standard IO). | |
| 31 * message: a printf(3) style text string. A trailing '\n' is added | |
| 32 * to the message. | |
| 33 * arg: 0 to 2 arguments for printf(3) style substitution in message. | |
| 34 */ | |
| 35 #ifndef PNGDEBUG_H | |
| 36 #define PNGDEBUG_H | |
| 37 /* These settings control the formatting of messages in png.c and pngerror.c */ | |
| 38 /* Moved to pngdebug.h at 1.5.0 */ | |
| 39 # ifndef PNG_LITERAL_SHARP | |
| 40 # define PNG_LITERAL_SHARP 0x23 | |
| 41 # endif | |
| 42 # ifndef PNG_LITERAL_LEFT_SQUARE_BRACKET | |
| 43 # define PNG_LITERAL_LEFT_SQUARE_BRACKET 0x5b | |
| 44 # endif | |
| 45 # ifndef PNG_LITERAL_RIGHT_SQUARE_BRACKET | |
| 46 # define PNG_LITERAL_RIGHT_SQUARE_BRACKET 0x5d | |
| 47 # endif | |
| 48 # ifndef PNG_STRING_NEWLINE | |
| 49 # define PNG_STRING_NEWLINE "\n" | |
| 50 # endif | |
| 51 | |
| 52 #ifdef PNG_DEBUG | |
| 53 # if (PNG_DEBUG > 0) | |
| 54 # if !defined(PNG_DEBUG_FILE) && defined(_MSC_VER) | |
| 55 # include <crtdbg.h> | |
| 56 # if (PNG_DEBUG > 1) | |
| 57 # ifndef _DEBUG | |
| 58 # define _DEBUG | |
| 59 # endif | |
| 60 # ifndef png_debug | |
| 61 # define png_debug(l,m) _RPT0(_CRT_WARN,m PNG_STRING_NEWLINE) | |
| 62 # endif | |
| 63 # ifndef png_debug1 | |
| 64 # define png_debug1(l,m,p1) _RPT1(_CRT_WARN,m PNG_STRING_NEWLINE,p1) | |
| 65 # endif | |
| 66 # ifndef png_debug2 | |
| 67 # define png_debug2(l,m,p1,p2) \ | |
| 68 _RPT2(_CRT_WARN,m PNG_STRING_NEWLINE,p1,p2) | |
| 69 # endif | |
| 70 # endif | |
| 71 # else /* PNG_DEBUG_FILE || !_MSC_VER */ | |
| 72 # ifndef PNG_STDIO_SUPPORTED | |
| 73 # include <stdio.h> /* not included yet */ | |
| 74 # endif | |
| 75 # ifndef PNG_DEBUG_FILE | |
| 76 # define PNG_DEBUG_FILE stderr | |
| 77 # endif /* PNG_DEBUG_FILE */ | |
| 78 | |
| 79 # if (PNG_DEBUG > 1) | |
| 80 # ifdef __STDC__ | |
| 81 # ifndef png_debug | |
| 82 # define png_debug(l,m) \ | |
| 83 do { \ | |
| 84 int num_tabs=l; \ | |
| 85 fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ | |
| 86 (num_tabs==2 ? " " : (num_tabs>2 ? " " : "")))); \ | |
| 87 } while (0) | |
| 88 # endif | |
| 89 # ifndef png_debug1 | |
| 90 # define png_debug1(l,m,p1) \ | |
| 91 do { \ | |
| 92 int num_tabs=l; \ | |
| 93 fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ | |
| 94 (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1); \ | |
| 95 } while (0) | |
| 96 # endif | |
| 97 # ifndef png_debug2 | |
| 98 # define png_debug2(l,m,p1,p2) \ | |
| 99 do { \ | |
| 100 int num_tabs=l; \ | |
| 101 fprintf(PNG_DEBUG_FILE,"%s" m PNG_STRING_NEWLINE,(num_tabs==1 ? " " : \ | |
| 102 (num_tabs==2 ? " " : (num_tabs>2 ? " " : ""))),p1,p2);\ | |
| 103 } while (0) | |
| 104 # endif | |
| 105 # else /* __STDC __ */ | |
| 106 # ifndef png_debug | |
| 107 # define png_debug(l,m) \ | |
| 108 do { \ | |
| 109 int num_tabs=l; \ | |
| 110 char format[256]; \ | |
| 111 snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ | |
| 112 (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ | |
| 113 m,PNG_STRING_NEWLINE); \ | |
| 114 fprintf(PNG_DEBUG_FILE,format); \ | |
| 115 } while (0) | |
| 116 # endif | |
| 117 # ifndef png_debug1 | |
| 118 # define png_debug1(l,m,p1) \ | |
| 119 do { \ | |
| 120 int num_tabs=l; \ | |
| 121 char format[256]; \ | |
| 122 snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ | |
| 123 (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ | |
| 124 m,PNG_STRING_NEWLINE); \ | |
| 125 fprintf(PNG_DEBUG_FILE,format,p1); \ | |
| 126 } while (0) | |
| 127 # endif | |
| 128 # ifndef png_debug2 | |
| 129 # define png_debug2(l,m,p1,p2) \ | |
| 130 do { \ | |
| 131 int num_tabs=l; \ | |
| 132 char format[256]; \ | |
| 133 snprintf(format,256,"%s%s%s",(num_tabs==1 ? "\t" : \ | |
| 134 (num_tabs==2 ? "\t\t":(num_tabs>2 ? "\t\t\t":""))), \ | |
| 135 m,PNG_STRING_NEWLINE); \ | |
| 136 fprintf(PNG_DEBUG_FILE,format,p1,p2); \ | |
| 137 } while (0) | |
| 138 # endif | |
| 139 # endif /* __STDC __ */ | |
| 140 # endif /* (PNG_DEBUG > 1) */ | |
| 141 | |
| 142 # endif /* _MSC_VER */ | |
| 143 # endif /* (PNG_DEBUG > 0) */ | |
| 144 #endif /* PNG_DEBUG */ | |
| 145 #ifndef png_debug | |
| 146 # define png_debug(l, m) ((void)0) | |
| 147 #endif | |
| 148 #ifndef png_debug1 | |
| 149 # define png_debug1(l, m, p1) ((void)0) | |
| 150 #endif | |
| 151 #ifndef png_debug2 | |
| 152 # define png_debug2(l, m, p1, p2) ((void)0) | |
| 153 #endif | |
| 154 #endif /* PNGDEBUG_H */ |
