Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 1 | |
| 2 | /* pngerror.c - stub functions for i/o and memory allocation |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 3 | * |
Glenn Randers-Pehrson | 299d735 | 2002-05-01 16:55:46 -0500 | [diff] [blame^] | 4 | * libpng 1.2.3rc3 - May 1, 2002 |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 5 | * For conditions of distribution and use, see copyright notice in png.h |
Glenn Randers-Pehrson | c6de22d | 2002-02-23 18:55:25 -0600 | [diff] [blame] | 6 | * Copyright (c) 1998-2002 Glenn Randers-Pehrson |
Glenn Randers-Pehrson | d436672 | 2000-06-04 14:29:29 -0500 | [diff] [blame] | 7 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
| 8 | * (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.) |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 9 | * |
Glenn Randers-Pehrson | 8686fff | 1998-05-21 09:27:50 -0500 | [diff] [blame] | 10 | * This file provides a location for all error handling. Users who |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 11 | * need special error handling are expected to write replacement functions |
| 12 | * and use png_set_error_fn() to use those functions. See the instructions |
| 13 | * at each function. |
| 14 | */ |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 15 | |
| 16 | #define PNG_INTERNAL |
| 17 | #include "png.h" |
| 18 | |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 19 | static void /* PRIVATE */ |
| 20 | png_default_error PNGARG((png_structp png_ptr, |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 21 | png_const_charp message)); |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 22 | static void /* PRIVATE */ |
| 23 | png_default_warning PNGARG((png_structp png_ptr, |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 24 | png_const_charp message)); |
| 25 | |
Guy Schalnat | 69b1448 | 1996-01-10 02:56:49 -0600 | [diff] [blame] | 26 | /* This function is called whenever there is a fatal error. This function |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 27 | * should not be changed. If there is a need to handle errors differently, |
| 28 | * you should supply a replacement error function and use png_set_error_fn() |
| 29 | * to replace the error function at run-time. |
| 30 | */ |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 31 | void PNGAPI |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 32 | png_error(png_structp png_ptr, png_const_charp message) |
| 33 | { |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 34 | #ifdef PNG_ERROR_NUMBERS_SUPPORTED |
| 35 | char msg[16]; |
| 36 | if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) |
| 37 | { |
| 38 | int offset = 0; |
| 39 | if (*message == '#') |
| 40 | { |
| 41 | for (offset=1; offset<15; offset++) |
| 42 | if (*(message+offset) == ' ') |
| 43 | break; |
| 44 | if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) |
| 45 | { |
| 46 | int i; |
| 47 | for (i=0; i<offset-1; i++) |
| 48 | msg[i]=message[i+1]; |
| 49 | msg[i]='\0'; |
| 50 | message=msg; |
| 51 | } |
| 52 | else |
| 53 | message+=offset; |
| 54 | } |
| 55 | else |
| 56 | { |
| 57 | if (png_ptr->flags&PNG_FLAG_STRIP_ERROR_TEXT) |
| 58 | { |
| 59 | msg[0]='0'; |
| 60 | msg[1]='\0'; |
| 61 | message=msg; |
| 62 | } |
| 63 | } |
| 64 | } |
| 65 | #endif |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 66 | if (png_ptr->error_fn != NULL) |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 67 | (*(png_ptr->error_fn))(png_ptr, message); |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 68 | |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 69 | /* if the following returns or doesn't exist, use the default function, |
| 70 | which will not return */ |
| 71 | png_default_error(png_ptr, message); |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 72 | } |
| 73 | |
Guy Schalnat | 69b1448 | 1996-01-10 02:56:49 -0600 | [diff] [blame] | 74 | /* This function is called whenever there is a non-fatal error. This function |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 75 | * should not be changed. If there is a need to handle warnings differently, |
| 76 | * you should supply a replacement warning function and use |
| 77 | * png_set_error_fn() to replace the warning function at run-time. |
| 78 | */ |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 79 | void PNGAPI |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 80 | png_warning(png_structp png_ptr, png_const_charp message) |
| 81 | { |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 82 | int offset = 0; |
| 83 | #ifdef PNG_ERROR_NUMBERS_SUPPORTED |
| 84 | if (png_ptr->flags&(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT)) |
| 85 | #endif |
| 86 | { |
| 87 | if (*message == '#') |
| 88 | { |
| 89 | for (offset=1; offset<15; offset++) |
| 90 | if (*(message+offset) == ' ') |
| 91 | break; |
| 92 | } |
| 93 | } |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 94 | if (png_ptr->warning_fn != NULL) |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 95 | (*(png_ptr->warning_fn))(png_ptr, (png_const_charp)(message+offset)); |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 96 | else |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 97 | png_default_warning(png_ptr, (png_const_charp)(message+offset)); |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 98 | } |
| 99 | |
Glenn Randers-Pehrson | 8686fff | 1998-05-21 09:27:50 -0500 | [diff] [blame] | 100 | /* These utilities are used internally to build an error message that relates |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 101 | * to the current chunk. The chunk name comes from png_ptr->chunk_name, |
| 102 | * this is used to prefix the message. The message is limited in length |
| 103 | * to 63 bytes, the name characters are output as hex digits wrapped in [] |
| 104 | * if the character is invalid. |
| 105 | */ |
| 106 | #define isnonalpha(c) ((c) < 41 || (c) > 122 || ((c) > 90 && (c) < 97)) |
Glenn Randers-Pehrson | 7cd899c | 1998-03-07 16:17:42 -0600 | [diff] [blame] | 107 | static PNG_CONST char png_digit[16] = { |
Glenn Randers-Pehrson | 82ae383 | 2001-04-20 10:32:10 -0500 | [diff] [blame] | 108 | '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', |
| 109 | 'F' }; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 110 | |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 111 | static void /* PRIVATE */ |
Glenn Randers-Pehrson | 82ae383 | 2001-04-20 10:32:10 -0500 | [diff] [blame] | 112 | png_format_buffer(png_structp png_ptr, png_charp buffer, png_const_charp |
| 113 | message) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 114 | { |
| 115 | int iout = 0, iin = 0; |
| 116 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 117 | while (iin < 4) |
| 118 | { |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 119 | int c = png_ptr->chunk_name[iin++]; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 120 | if (isnonalpha(c)) |
| 121 | { |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 122 | buffer[iout++] = '['; |
| 123 | buffer[iout++] = png_digit[(c & 0xf0) >> 4]; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 124 | buffer[iout++] = png_digit[c & 0x0f]; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 125 | buffer[iout++] = ']'; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 126 | } |
| 127 | else |
| 128 | { |
Glenn Randers-Pehrson | 860ab2b | 1999-10-14 07:43:10 -0500 | [diff] [blame] | 129 | buffer[iout++] = (png_byte)c; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 130 | } |
| 131 | } |
| 132 | |
| 133 | if (message == NULL) |
Glenn Randers-Pehrson | 0f881d6 | 1998-02-07 10:20:57 -0600 | [diff] [blame] | 134 | buffer[iout] = 0; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 135 | else |
| 136 | { |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 137 | buffer[iout++] = ':'; |
| 138 | buffer[iout++] = ' '; |
Glenn Randers-Pehrson | 2687fcc | 1998-01-07 20:54:20 -0600 | [diff] [blame] | 139 | png_memcpy(buffer+iout, message, 64); |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 140 | buffer[iout+63] = 0; |
| 141 | } |
| 142 | } |
| 143 | |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 144 | void PNGAPI |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 145 | png_chunk_error(png_structp png_ptr, png_const_charp message) |
| 146 | { |
Glenn Randers-Pehrson | f6b4f45 | 2000-12-01 09:23:06 -0600 | [diff] [blame] | 147 | char msg[18+64]; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 148 | png_format_buffer(png_ptr, msg, message); |
| 149 | png_error(png_ptr, msg); |
| 150 | } |
| 151 | |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 152 | void PNGAPI |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 153 | png_chunk_warning(png_structp png_ptr, png_const_charp message) |
| 154 | { |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 155 | char msg[18+64]; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 156 | png_format_buffer(png_ptr, msg, message); |
| 157 | png_warning(png_ptr, msg); |
| 158 | } |
| 159 | |
Guy Schalnat | 4ee97b0 | 1996-01-16 01:51:56 -0600 | [diff] [blame] | 160 | /* This is the default error handling function. Note that replacements for |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 161 | * this function MUST NOT RETURN, or the program will likely crash. This |
| 162 | * function is used by default, or if the program supplies NULL for the |
| 163 | * error function pointer in png_set_error_fn(). |
| 164 | */ |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 165 | static void /* PRIVATE */ |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 166 | png_default_error(png_structp png_ptr, png_const_charp message) |
| 167 | { |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 168 | #ifndef PNG_NO_CONSOLE_IO |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 169 | #ifdef PNG_ERROR_NUMBERS_SUPPORTED |
| 170 | if (*message == '#') |
| 171 | { |
| 172 | int offset; |
| 173 | char error_number[16]; |
| 174 | for (offset=0; offset<15; offset++) |
| 175 | { |
| 176 | error_number[offset] = *(message+offset+1); |
| 177 | if (*(message+offset) == ' ') |
| 178 | break; |
| 179 | } |
| 180 | if((offset > 1) && (offset < 15)) |
| 181 | { |
| 182 | error_number[offset-1]='\0'; |
| 183 | fprintf(stderr, "libpng error no. %s: %s\n", error_number, message+offset); |
| 184 | } |
| 185 | else |
| 186 | fprintf(stderr, "libpng error: %s, offset=%d\n", message,offset); |
| 187 | } |
| 188 | else |
| 189 | #endif |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 190 | fprintf(stderr, "libpng error: %s\n", message); |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 191 | #else |
| 192 | if (message) |
| 193 | /* make compiler happy */ ; |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 194 | #endif |
| 195 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 196 | #ifdef PNG_SETJMP_SUPPORTED |
| 197 | # ifdef USE_FAR_KEYWORD |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 198 | { |
| 199 | jmp_buf jmpbuf; |
| 200 | png_memcpy(jmpbuf,png_ptr->jmpbuf,sizeof(jmp_buf)); |
| 201 | longjmp(jmpbuf, 1); |
| 202 | } |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 203 | # else |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 204 | longjmp(png_ptr->jmpbuf, 1); |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 205 | # endif |
| 206 | #else |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 207 | if (png_ptr) |
Glenn Randers-Pehrson | a77ef62 | 2000-02-18 13:48:52 -0600 | [diff] [blame] | 208 | /* make compiler happy */ ; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 209 | PNG_ABORT(); |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 210 | #endif |
| 211 | } |
| 212 | |
Guy Schalnat | 69b1448 | 1996-01-10 02:56:49 -0600 | [diff] [blame] | 213 | /* This function is called when there is a warning, but the library thinks |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 214 | * it can continue anyway. Replacement functions don't have to do anything |
Glenn Randers-Pehrson | 345bc27 | 1998-06-14 14:43:31 -0500 | [diff] [blame] | 215 | * here if you don't want them to. In the default configuration, png_ptr is |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 216 | * not used, but it is passed in case it may be useful. |
| 217 | */ |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 218 | static void /* PRIVATE */ |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 219 | png_default_warning(png_structp png_ptr, png_const_charp message) |
| 220 | { |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 221 | #ifndef PNG_NO_CONSOLE_IO |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 222 | # ifdef PNG_ERROR_NUMBERS_SUPPORTED |
| 223 | if (*message == '#') |
| 224 | { |
| 225 | int offset; |
| 226 | char warning_number[16]; |
| 227 | for (offset=0; offset<15; offset++) |
| 228 | { |
| 229 | warning_number[offset]=*(message+offset+1); |
| 230 | if (*(message+offset) == ' ') |
| 231 | break; |
| 232 | } |
| 233 | if((offset > 1) && (offset < 15)) |
| 234 | { |
| 235 | warning_number[offset-1]='\0'; |
| 236 | fprintf(stderr, "libpng warning no. %s: %s\n", warning_number, |
| 237 | message+offset); |
| 238 | } |
| 239 | else |
| 240 | fprintf(stderr, "libpng warning: %s\n", message); |
| 241 | } |
| 242 | else |
| 243 | # endif |
| 244 | fprintf(stderr, "libpng warning: %s\n", message); |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 245 | #else |
| 246 | if (message) |
| 247 | /* appease compiler */ ; |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 248 | #endif |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 249 | if (png_ptr) |
Glenn Randers-Pehrson | c944229 | 1999-01-06 21:50:16 -0600 | [diff] [blame] | 250 | return; |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 251 | } |
| 252 | |
Guy Schalnat | 69b1448 | 1996-01-10 02:56:49 -0600 | [diff] [blame] | 253 | /* This function is called when the application wants to use another method |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 254 | * of handling errors and warnings. Note that the error function MUST NOT |
| 255 | * return to the calling routine or serious problems will occur. The return |
| 256 | * method used in the default routine calls longjmp(png_ptr->jmpbuf, 1) |
| 257 | */ |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 258 | void PNGAPI |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 259 | png_set_error_fn(png_structp png_ptr, png_voidp error_ptr, |
| 260 | png_error_ptr error_fn, png_error_ptr warning_fn) |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 261 | { |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 262 | png_ptr->error_ptr = error_ptr; |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 263 | png_ptr->error_fn = error_fn; |
| 264 | png_ptr->warning_fn = warning_fn; |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 265 | } |
| 266 | |
| 267 | |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 268 | /* This function returns a pointer to the error_ptr associated with the user |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 269 | * functions. The application should free any memory associated with this |
| 270 | * pointer before png_write_destroy and png_read_destroy are called. |
| 271 | */ |
Glenn Randers-Pehrson | 7529457 | 2000-05-06 14:09:57 -0500 | [diff] [blame] | 272 | png_voidp PNGAPI |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 273 | png_get_error_ptr(png_structp png_ptr) |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 274 | { |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 275 | return ((png_voidp)png_ptr->error_ptr); |
Guy Schalnat | 6d76471 | 1995-12-19 03:22:19 -0600 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 279 | #ifdef PNG_ERROR_NUMBERS_SUPPORTED |
Glenn Randers-Pehrson | 73d57cb | 2002-03-25 18:49:08 -0600 | [diff] [blame] | 280 | void PNGAPI |
Glenn Randers-Pehrson | e68f5a3 | 2001-05-14 09:20:53 -0500 | [diff] [blame] | 281 | png_set_strip_error_numbers(png_structp png_ptr, png_uint_32 strip_mode) |
| 282 | { |
| 283 | if(png_ptr != NULL) |
| 284 | { |
| 285 | png_ptr->flags &= |
| 286 | ((~(PNG_FLAG_STRIP_ERROR_NUMBERS|PNG_FLAG_STRIP_ERROR_TEXT))&strip_mode); |
| 287 | } |
| 288 | } |
| 289 | #endif |