Andreas Dilger | 02ad0ef | 1997-01-17 01:34:35 -0600 | [diff] [blame] | 1 | |
Guy Schalnat | 4ee97b0 | 1996-01-16 01:51:56 -0600 | [diff] [blame] | 2 | /* pngtest.c - a simple test program to test libpng |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 3 | * |
Glenn Randers-Pehrson | ebba074 | 2014-10-25 12:22:39 -0500 | [diff] [blame] | 4 | * Last changed in libpng 1.6.15 [(PENDING RELEASE)] |
Glenn Randers-Pehrson | 95a1973 | 2013-12-31 21:10:13 -0600 | [diff] [blame] | 5 | * Copyright (c) 1998-2014 Glenn Randers-Pehrson |
Glenn Randers-Pehrson | d436672 | 2000-06-04 14:29:29 -0500 | [diff] [blame] | 6 | * (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger) |
| 7 | * (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] | 8 | * |
Glenn Randers-Pehrson | bfbf865 | 2009-06-26 21:46:52 -0500 | [diff] [blame] | 9 | * This code is released under the libpng license. |
Glenn Randers-Pehrson | c332bbc | 2009-06-25 13:43:50 -0500 | [diff] [blame] | 10 | * For conditions of distribution and use, see the disclaimer |
Glenn Randers-Pehrson | 037023b | 2009-06-24 10:27:36 -0500 | [diff] [blame] | 11 | * and license in png.h |
Glenn Randers-Pehrson | 3e61d79 | 2009-06-24 09:31:28 -0500 | [diff] [blame] | 12 | * |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 13 | * This program reads in a PNG image, writes it out again, and then |
| 14 | * compares the two files. If the files are identical, this shows that |
| 15 | * the basic chunk handling, filtering, and (de)compression code is working |
| 16 | * properly. It does not currently test all of the transforms, although |
| 17 | * it probably should. |
| 18 | * |
Glenn Randers-Pehrson | 345bc27 | 1998-06-14 14:43:31 -0500 | [diff] [blame] | 19 | * The program will report "FAIL" in certain legitimate cases: |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 20 | * 1) when the compression level or filter selection method is changed. |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 21 | * 2) when the maximum IDAT size (PNG_ZBUF_SIZE in pngconf.h) is not 8192. |
Glenn Randers-Pehrson | 5e5c1e1 | 2000-11-10 12:26:19 -0600 | [diff] [blame] | 22 | * 3) unknown unsafe-to-copy ancillary chunks or unknown critical chunks |
| 23 | * exist in the input file. |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 24 | * 4) others not listed here... |
| 25 | * In these cases, it is best to check with another tool such as "pngcheck" |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 26 | * to see what the differences between the two files are. |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 27 | * |
| 28 | * If a filename is given on the command-line, then this file is used |
| 29 | * for the input, rather than the default "pngtest.png". This allows |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 30 | * testing a wide variety of files easily. You can also test a number |
| 31 | * of files at once by typing "pngtest -m file1.png file2.png ..." |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 32 | */ |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 33 | |
Glenn Randers-Pehrson | b3b7168 | 2011-05-03 22:30:19 -0500 | [diff] [blame] | 34 | #define _POSIX_SOURCE 1 |
| 35 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 36 | #include <stdio.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <string.h> |
| 39 | |
| 40 | /* Defined so I can write to a file on gui/windowing platforms */ |
| 41 | /* #define STDERR stderr */ |
| 42 | #define STDERR stdout /* For DOS */ |
| 43 | |
Glenn Randers-Pehrson | f3af706 | 2012-02-02 23:11:45 -0600 | [diff] [blame] | 44 | #include "png.h" |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 45 | |
John Bowler | e4413a7 | 2013-04-17 21:27:47 -0500 | [diff] [blame] | 46 | /* Known chunks that exist in pngtest.png must be supported or pngtest will fail |
| 47 | * simply as a result of re-ordering them. This may be fixed in 1.7 |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 48 | * |
| 49 | * pngtest allocates a single row buffer for each row and overwrites it, |
| 50 | * therefore if the write side doesn't support the writing of interlaced images |
| 51 | * nothing can be done for an interlaced image (and the code below will fail |
| 52 | * horribly trying to write extra data after writing garbage). |
John Bowler | e4413a7 | 2013-04-17 21:27:47 -0500 | [diff] [blame] | 53 | */ |
| 54 | #if defined PNG_READ_SUPPORTED && /* else nothing can be done */\ |
| 55 | defined PNG_READ_bKGD_SUPPORTED &&\ |
| 56 | defined PNG_READ_cHRM_SUPPORTED &&\ |
| 57 | defined PNG_READ_gAMA_SUPPORTED &&\ |
| 58 | defined PNG_READ_oFFs_SUPPORTED &&\ |
| 59 | defined PNG_READ_pCAL_SUPPORTED &&\ |
| 60 | defined PNG_READ_pHYs_SUPPORTED &&\ |
| 61 | defined PNG_READ_sBIT_SUPPORTED &&\ |
| 62 | defined PNG_READ_sCAL_SUPPORTED &&\ |
| 63 | defined PNG_READ_sRGB_SUPPORTED &&\ |
| 64 | defined PNG_READ_tEXt_SUPPORTED &&\ |
| 65 | defined PNG_READ_tIME_SUPPORTED &&\ |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 66 | defined PNG_READ_zTXt_SUPPORTED &&\ |
| 67 | defined PNG_WRITE_INTERLACING_SUPPORTED |
John Bowler | e4413a7 | 2013-04-17 21:27:47 -0500 | [diff] [blame] | 68 | |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 69 | #ifdef PNG_ZLIB_HEADER |
| 70 | # include PNG_ZLIB_HEADER /* defined by pnglibconf.h from 1.7 */ |
| 71 | #else |
| 72 | # include "zlib.h" |
| 73 | #endif |
| 74 | |
Glenn Randers-Pehrson | 7253144 | 2010-04-17 08:17:51 -0500 | [diff] [blame] | 75 | /* Copied from pngpriv.h but only used in error messages below. */ |
| 76 | #ifndef PNG_ZBUF_SIZE |
| 77 | # define PNG_ZBUF_SIZE 8192 |
| 78 | #endif |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 79 | #define FCLOSE(file) fclose(file) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 80 | |
Glenn Randers-Pehrson | dbd4014 | 2009-08-31 08:42:02 -0500 | [diff] [blame] | 81 | #ifndef PNG_STDIO_SUPPORTED |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 82 | typedef FILE * png_FILE_p; |
Glenn Randers-Pehrson | be9de0f | 2001-01-22 08:52:16 -0600 | [diff] [blame] | 83 | #endif |
| 84 | |
Glenn Randers-Pehrson | c3cd22b | 2010-03-08 21:10:25 -0600 | [diff] [blame] | 85 | /* Makes pngtest verbose so we can find problems. */ |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 86 | #ifndef PNG_DEBUG |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 87 | # define PNG_DEBUG 0 |
| 88 | #endif |
| 89 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 90 | #if PNG_DEBUG > 1 |
| 91 | # define pngtest_debug(m) ((void)fprintf(stderr, m "\n")) |
| 92 | # define pngtest_debug1(m,p1) ((void)fprintf(stderr, m "\n", p1)) |
| 93 | # define pngtest_debug2(m,p1,p2) ((void)fprintf(stderr, m "\n", p1, p2)) |
| 94 | #else |
| 95 | # define pngtest_debug(m) ((void)0) |
| 96 | # define pngtest_debug1(m,p1) ((void)0) |
| 97 | # define pngtest_debug2(m,p1,p2) ((void)0) |
| 98 | #endif |
Glenn Randers-Pehrson | c3cd22b | 2010-03-08 21:10:25 -0600 | [diff] [blame] | 99 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 100 | #if !PNG_DEBUG |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 101 | # define SINGLE_ROWBUF_ALLOC /* Makes buffer overruns easier to nail */ |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 102 | #endif |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 103 | |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 104 | /* Turn on CPU timing |
| 105 | #define PNGTEST_TIMING |
| 106 | */ |
| 107 | |
Glenn Randers-Pehrson | dbd4014 | 2009-08-31 08:42:02 -0500 | [diff] [blame] | 108 | #ifndef PNG_FLOATING_POINT_SUPPORTED |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 109 | #undef PNGTEST_TIMING |
| 110 | #endif |
| 111 | |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 112 | #ifdef PNGTEST_TIMING |
| 113 | static float t_start, t_stop, t_decode, t_encode, t_misc; |
| 114 | #include <time.h> |
| 115 | #endif |
| 116 | |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 117 | #ifdef PNG_TIME_RFC1123_SUPPORTED |
Glenn Randers-Pehrson | a5fa5c9 | 2008-09-06 07:06:22 -0500 | [diff] [blame] | 118 | #define PNG_tIME_STRING_LENGTH 29 |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 119 | static int tIME_chunk_present = 0; |
Glenn Randers-Pehrson | a5fa5c9 | 2008-09-06 07:06:22 -0500 | [diff] [blame] | 120 | static char tIME_string[PNG_tIME_STRING_LENGTH] = "tIME chunk is not present"; |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 121 | #endif |
| 122 | |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 123 | static int verbose = 0; |
Glenn Randers-Pehrson | 8e25a61 | 2011-09-26 20:57:33 -0500 | [diff] [blame] | 124 | static int strict = 0; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 125 | static int relaxed = 0; |
| 126 | static int unsupported_chunks = 0; /* chunk unsupported by libpng in input */ |
| 127 | static int error_count = 0; /* count calls to png_error */ |
| 128 | static int warning_count = 0; /* count calls to png_warning */ |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 129 | |
Glenn Randers-Pehrson | a7dbcba | 2007-05-15 16:16:34 -0500 | [diff] [blame] | 130 | /* Define png_jmpbuf() in case we are using a pre-1.0.6 version of libpng */ |
| 131 | #ifndef png_jmpbuf |
| 132 | # define png_jmpbuf(png_ptr) png_ptr->jmpbuf |
| 133 | #endif |
| 134 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 135 | /* Defines for unknown chunk handling if required. */ |
| 136 | #ifndef PNG_HANDLE_CHUNK_ALWAYS |
| 137 | # define PNG_HANDLE_CHUNK_ALWAYS 3 |
| 138 | #endif |
| 139 | #ifndef PNG_HANDLE_CHUNK_IF_SAFE |
| 140 | # define PNG_HANDLE_CHUNK_IF_SAFE 2 |
| 141 | #endif |
| 142 | |
| 143 | /* Utility to save typing/errors, the argument must be a name */ |
| 144 | #define MEMZERO(var) ((void)memset(&var, 0, sizeof var)) |
| 145 | |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 146 | /* Example of using row callbacks to make a simple progress meter */ |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 147 | static int status_pass = 1; |
| 148 | static int status_dots_requested = 0; |
| 149 | static int status_dots = 1; |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 150 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 151 | static void PNGCBAPI |
Glenn Randers-Pehrson | 7cd899c | 1998-03-07 16:17:42 -0600 | [diff] [blame] | 152 | read_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 153 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 154 | if (png_ptr == NULL || row_number > PNG_UINT_31_MAX) |
| 155 | return; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 156 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 157 | if (status_pass != pass) |
| 158 | { |
| 159 | fprintf(stdout, "\n Pass %d: ", pass); |
| 160 | status_pass = pass; |
| 161 | status_dots = 31; |
| 162 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 163 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 164 | status_dots--; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 165 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 166 | if (status_dots == 0) |
| 167 | { |
| 168 | fprintf(stdout, "\n "); |
| 169 | status_dots=30; |
| 170 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 171 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 172 | fprintf(stdout, "r"); |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 173 | } |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 174 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 175 | #ifdef PNG_WRITE_SUPPORTED |
| 176 | static void PNGCBAPI |
Glenn Randers-Pehrson | 7cd899c | 1998-03-07 16:17:42 -0600 | [diff] [blame] | 177 | write_row_callback(png_structp png_ptr, png_uint_32 row_number, int pass) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 178 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 179 | if (png_ptr == NULL || row_number > PNG_UINT_31_MAX || pass > 7) |
| 180 | return; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 181 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 182 | fprintf(stdout, "w"); |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 183 | } |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 184 | #endif |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 185 | |
| 186 | |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 187 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 188 | /* Example of using user transform callback (we don't transform anything, |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 189 | * but merely examine the row filters. We set this to 256 rather than |
| 190 | * 5 in case illegal filter values are present.) |
| 191 | */ |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 192 | static png_uint_32 filters_used[256]; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 193 | static void PNGCBAPI |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 194 | count_filters(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
| 195 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 196 | if (png_ptr != NULL && row_info != NULL) |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 197 | ++filters_used[*(data - 1)]; |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 198 | } |
| 199 | #endif |
| 200 | |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 201 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 202 | /* Example of using user transform callback (we don't transform anything, |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 203 | * but merely count the zero samples) |
| 204 | */ |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 205 | |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 206 | static png_uint_32 zero_samples; |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 207 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 208 | static void PNGCBAPI |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 209 | count_zero_samples(png_structp png_ptr, png_row_infop row_info, png_bytep data) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 210 | { |
| 211 | png_bytep dp = data; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 212 | if (png_ptr == NULL) |
| 213 | return; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 214 | |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 215 | /* Contents of row_info: |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 216 | * png_uint_32 width width of row |
| 217 | * png_uint_32 rowbytes number of bytes in row |
| 218 | * png_byte color_type color type of pixels |
| 219 | * png_byte bit_depth bit depth of samples |
| 220 | * png_byte channels number of channels (1-4) |
| 221 | * png_byte pixel_depth bits per pixel (depth*channels) |
| 222 | */ |
| 223 | |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 224 | /* Counts the number of zero samples (or zero pixels if color_type is 3 */ |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 225 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 226 | if (row_info->color_type == 0 || row_info->color_type == 3) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 227 | { |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 228 | int pos = 0; |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 229 | png_uint_32 n, nstop; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 230 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 231 | for (n = 0, nstop=row_info->width; n<nstop; n++) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 232 | { |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 233 | if (row_info->bit_depth == 1) |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 234 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 235 | if (((*dp << pos++ ) & 0x80) == 0) |
| 236 | zero_samples++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 237 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 238 | if (pos == 8) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 239 | { |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 240 | pos = 0; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 241 | dp++; |
| 242 | } |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 243 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 244 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 245 | if (row_info->bit_depth == 2) |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 246 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 247 | if (((*dp << (pos+=2)) & 0xc0) == 0) |
| 248 | zero_samples++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 249 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 250 | if (pos == 8) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 251 | { |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 252 | pos = 0; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 253 | dp++; |
| 254 | } |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 255 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 256 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 257 | if (row_info->bit_depth == 4) |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 258 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 259 | if (((*dp << (pos+=4)) & 0xf0) == 0) |
| 260 | zero_samples++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 261 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 262 | if (pos == 8) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 263 | { |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 264 | pos = 0; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 265 | dp++; |
| 266 | } |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 267 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 268 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 269 | if (row_info->bit_depth == 8) |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 270 | if (*dp++ == 0) |
| 271 | zero_samples++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 272 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 273 | if (row_info->bit_depth == 16) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 274 | { |
Glenn Randers-Pehrson | d8eb62f | 2009-05-30 20:19:20 -0500 | [diff] [blame] | 275 | if ((*dp | *(dp+1)) == 0) |
| 276 | zero_samples++; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 277 | dp+=2; |
| 278 | } |
| 279 | } |
| 280 | } |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 281 | else /* Other color types */ |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 282 | { |
Glenn Randers-Pehrson | 896239b | 1998-04-21 15:03:57 -0500 | [diff] [blame] | 283 | png_uint_32 n, nstop; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 284 | int channel; |
| 285 | int color_channels = row_info->channels; |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 286 | if (row_info->color_type > 3)color_channels--; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 287 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 288 | for (n = 0, nstop=row_info->width; n<nstop; n++) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 289 | { |
| 290 | for (channel = 0; channel < color_channels; channel++) |
| 291 | { |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 292 | if (row_info->bit_depth == 8) |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 293 | if (*dp++ == 0) |
| 294 | zero_samples++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 295 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 296 | if (row_info->bit_depth == 16) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 297 | { |
Glenn Randers-Pehrson | d8eb62f | 2009-05-30 20:19:20 -0500 | [diff] [blame] | 298 | if ((*dp | *(dp+1)) == 0) |
| 299 | zero_samples++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 300 | |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 301 | dp+=2; |
| 302 | } |
| 303 | } |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 304 | if (row_info->color_type > 3) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 305 | { |
| 306 | dp++; |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 307 | if (row_info->bit_depth == 16) |
| 308 | dp++; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 309 | } |
| 310 | } |
| 311 | } |
| 312 | } |
Glenn Randers-Pehrson | 38d73af | 1998-03-07 21:30:44 -0600 | [diff] [blame] | 313 | #endif /* PNG_WRITE_USER_TRANSFORM_SUPPORTED */ |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 314 | |
Glenn Randers-Pehrson | dbd4014 | 2009-08-31 08:42:02 -0500 | [diff] [blame] | 315 | #ifndef PNG_STDIO_SUPPORTED |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 316 | /* START of code to validate stdio-free compilation */ |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 317 | /* These copies of the default read/write functions come from pngrio.c and |
| 318 | * pngwio.c. They allow "don't include stdio" testing of the library. |
| 319 | * This is the function that does the actual reading of data. If you are |
| 320 | * not reading from a standard C stream, you should create a replacement |
| 321 | * read_data function and use it at run time with png_set_read_fn(), rather |
| 322 | * than changing the library. |
| 323 | */ |
Glenn Randers-Pehrson | be9de0f | 2001-01-22 08:52:16 -0600 | [diff] [blame] | 324 | |
Glenn Randers-Pehrson | a581556 | 2010-11-20 21:48:29 -0600 | [diff] [blame] | 325 | #ifdef PNG_IO_STATE_SUPPORTED |
| 326 | void |
| 327 | pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, |
| 328 | png_uint_32 io_op); |
| 329 | void |
| 330 | pngtest_check_io_state(png_structp png_ptr, png_size_t data_length, |
| 331 | png_uint_32 io_op) |
| 332 | { |
| 333 | png_uint_32 io_state = png_get_io_state(png_ptr); |
| 334 | int err = 0; |
| 335 | |
| 336 | /* Check if the current operation (reading / writing) is as expected. */ |
| 337 | if ((io_state & PNG_IO_MASK_OP) != io_op) |
| 338 | png_error(png_ptr, "Incorrect operation in I/O state"); |
| 339 | |
| 340 | /* Check if the buffer size specific to the current location |
| 341 | * (file signature / header / data / crc) is as expected. |
| 342 | */ |
| 343 | switch (io_state & PNG_IO_MASK_LOC) |
| 344 | { |
| 345 | case PNG_IO_SIGNATURE: |
| 346 | if (data_length > 8) |
| 347 | err = 1; |
| 348 | break; |
| 349 | case PNG_IO_CHUNK_HDR: |
| 350 | if (data_length != 8) |
| 351 | err = 1; |
| 352 | break; |
| 353 | case PNG_IO_CHUNK_DATA: |
| 354 | break; /* no restrictions here */ |
| 355 | case PNG_IO_CHUNK_CRC: |
| 356 | if (data_length != 4) |
| 357 | err = 1; |
| 358 | break; |
| 359 | default: |
| 360 | err = 1; /* uninitialized */ |
| 361 | } |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 362 | if (err != 0) |
Glenn Randers-Pehrson | a581556 | 2010-11-20 21:48:29 -0600 | [diff] [blame] | 363 | png_error(png_ptr, "Bad I/O state or buffer size"); |
| 364 | } |
| 365 | #endif |
| 366 | |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 367 | static void PNGCBAPI |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 368 | pngtest_read_data(png_structp png_ptr, png_bytep data, png_size_t length) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 369 | { |
Glenn Randers-Pehrson | a0e0c6c | 2010-01-01 18:31:26 -0600 | [diff] [blame] | 370 | png_size_t check = 0; |
| 371 | png_voidp io_ptr; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 372 | |
| 373 | /* fread() returns 0 on error, so it is OK to store this in a png_size_t |
| 374 | * instead of an int, which is what fread() actually returns. |
| 375 | */ |
Glenn Randers-Pehrson | a0e0c6c | 2010-01-01 18:31:26 -0600 | [diff] [blame] | 376 | io_ptr = png_get_io_ptr(png_ptr); |
| 377 | if (io_ptr != NULL) |
| 378 | { |
| 379 | check = fread(data, 1, length, (png_FILE_p)io_ptr); |
| 380 | } |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 381 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 382 | if (check != length) |
| 383 | { |
Glenn Randers-Pehrson | a581556 | 2010-11-20 21:48:29 -0600 | [diff] [blame] | 384 | png_error(png_ptr, "Read Error"); |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 385 | } |
Glenn Randers-Pehrson | a581556 | 2010-11-20 21:48:29 -0600 | [diff] [blame] | 386 | |
| 387 | #ifdef PNG_IO_STATE_SUPPORTED |
| 388 | pngtest_check_io_state(png_ptr, length, PNG_IO_READING); |
| 389 | #endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 390 | } |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 391 | |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 392 | #ifdef PNG_WRITE_FLUSH_SUPPORTED |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 393 | static void PNGCBAPI |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 394 | pngtest_flush(png_structp png_ptr) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 395 | { |
Glenn Randers-Pehrson | 8fb550c | 2009-03-21 08:15:32 -0500 | [diff] [blame] | 396 | /* Do nothing; fflush() is said to be just a waste of energy. */ |
Glenn Randers-Pehrson | d546f43 | 2010-12-04 20:41:36 -0600 | [diff] [blame] | 397 | PNG_UNUSED(png_ptr) /* Stifle compiler warning */ |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 398 | } |
| 399 | #endif |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 400 | |
Glenn Randers-Pehrson | 8686fff | 1998-05-21 09:27:50 -0500 | [diff] [blame] | 401 | /* This is the function that does the actual writing of data. If you are |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 402 | * not writing to a standard C stream, you should create a replacement |
| 403 | * write_data function and use it at run time with png_set_write_fn(), rather |
| 404 | * than changing the library. |
| 405 | */ |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 406 | static void PNGCBAPI |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 407 | pngtest_write_data(png_structp png_ptr, png_bytep data, png_size_t length) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 408 | { |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 409 | png_size_t check; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 410 | |
Glenn Randers-Pehrson | 526a6ad | 2010-03-11 05:42:20 -0600 | [diff] [blame] | 411 | check = fwrite(data, 1, length, (png_FILE_p)png_get_io_ptr(png_ptr)); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 412 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 413 | if (check != length) |
| 414 | { |
| 415 | png_error(png_ptr, "Write Error"); |
| 416 | } |
Glenn Randers-Pehrson | a581556 | 2010-11-20 21:48:29 -0600 | [diff] [blame] | 417 | |
| 418 | #ifdef PNG_IO_STATE_SUPPORTED |
| 419 | pngtest_check_io_state(png_ptr, length, PNG_IO_WRITING); |
| 420 | #endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 421 | } |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 422 | #endif /* !PNG_STDIO_SUPPORTED */ |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 423 | |
| 424 | /* This function is called when there is a warning, but the library thinks |
| 425 | * it can continue anyway. Replacement functions don't have to do anything |
| 426 | * here if you don't want to. In the default configuration, png_ptr is |
| 427 | * not used, but it is passed in case it may be useful. |
| 428 | */ |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 429 | typedef struct |
| 430 | { |
| 431 | PNG_CONST char *file_name; |
| 432 | } pngtest_error_parameters; |
| 433 | |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 434 | static void PNGCBAPI |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 435 | pngtest_warning(png_structp png_ptr, png_const_charp message) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 436 | { |
| 437 | PNG_CONST char *name = "UNKNOWN (ERROR!)"; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 438 | pngtest_error_parameters *test = |
| 439 | (pngtest_error_parameters*)png_get_error_ptr(png_ptr); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 440 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 441 | ++warning_count; |
John Bowler | ad5a993 | 2012-08-10 13:15:07 -0500 | [diff] [blame] | 442 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 443 | if (test != NULL && test->file_name != NULL) |
| 444 | name = test->file_name; |
| 445 | |
| 446 | fprintf(STDERR, "%s: libpng warning: %s\n", name, message); |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 447 | } |
| 448 | |
| 449 | /* This is the default error handling function. Note that replacements for |
| 450 | * this function MUST NOT RETURN, or the program will likely crash. This |
| 451 | * function is used by default, or if the program supplies NULL for the |
| 452 | * error function pointer in png_set_error_fn(). |
| 453 | */ |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 454 | static void PNGCBAPI |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 455 | pngtest_error(png_structp png_ptr, png_const_charp message) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 456 | { |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 457 | ++error_count; |
| 458 | |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 459 | pngtest_warning(png_ptr, message); |
Glenn Randers-Pehrson | 8686fff | 1998-05-21 09:27:50 -0500 | [diff] [blame] | 460 | /* We can return because png_error calls the default handler, which is |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 461 | * actually OK in this case. |
| 462 | */ |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 463 | } |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 464 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 465 | /* END of code to validate stdio-free compilation */ |
| 466 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 467 | /* START of code to validate memory allocation and deallocation */ |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 468 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 469 | |
| 470 | /* Allocate memory. For reasonable files, size should never exceed |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 471 | * 64K. However, zlib may allocate more then 64K if you don't tell |
| 472 | * it not to. See zconf.h and png.h for more information. zlib does |
| 473 | * need to allocate exactly 64K, so whatever you call here must |
| 474 | * have the ability to do that. |
| 475 | * |
| 476 | * This piece of code can be compiled to validate max 64K allocations |
| 477 | * by setting MAXSEG_64K in zlib zconf.h *or* PNG_MAX_MALLOC_64K. |
| 478 | */ |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 479 | typedef struct memory_information |
| 480 | { |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 481 | png_alloc_size_t size; |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 482 | png_voidp pointer; |
John Bowler | baeb6d1 | 2011-11-26 18:21:02 -0600 | [diff] [blame] | 483 | struct memory_information *next; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 484 | } memory_information; |
John Bowler | baeb6d1 | 2011-11-26 18:21:02 -0600 | [diff] [blame] | 485 | typedef memory_information *memory_infop; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 486 | |
| 487 | static memory_infop pinformation = NULL; |
| 488 | static int current_allocation = 0; |
| 489 | static int maximum_allocation = 0; |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 490 | static int total_allocation = 0; |
| 491 | static int num_allocations = 0; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 492 | |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 493 | png_voidp PNGCBAPI png_debug_malloc PNGARG((png_structp png_ptr, |
| 494 | png_alloc_size_t size)); |
| 495 | void PNGCBAPI png_debug_free PNGARG((png_structp png_ptr, png_voidp ptr)); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 496 | |
| 497 | png_voidp |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 498 | PNGCBAPI png_debug_malloc(png_structp png_ptr, png_alloc_size_t size) |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 499 | { |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 500 | |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 501 | /* png_malloc has already tested for NULL; png_create_struct calls |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 502 | * png_debug_malloc directly, with png_ptr == NULL which is OK |
| 503 | */ |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 504 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 505 | if (size == 0) |
Glenn Randers-Pehrson | 3f54925 | 2001-10-27 07:35:13 -0500 | [diff] [blame] | 506 | return (NULL); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 507 | |
| 508 | /* This calls the library allocator twice, once to get the requested |
| 509 | buffer and once to get a new free list entry. */ |
| 510 | { |
Glenn Randers-Pehrson | dff799e | 2004-08-07 21:42:49 -0500 | [diff] [blame] | 511 | /* Disable malloc_fn and free_fn */ |
Glenn Randers-Pehrson | 36d7bc7 | 2004-08-10 06:55:02 -0500 | [diff] [blame] | 512 | memory_infop pinfo; |
Glenn Randers-Pehrson | dff799e | 2004-08-07 21:42:49 -0500 | [diff] [blame] | 513 | png_set_mem_fn(png_ptr, NULL, NULL, NULL); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 514 | pinfo = (memory_infop)png_malloc(png_ptr, |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 515 | (sizeof *pinfo)); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 516 | pinfo->size = size; |
| 517 | current_allocation += size; |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 518 | total_allocation += size; |
| 519 | num_allocations ++; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 520 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 521 | if (current_allocation > maximum_allocation) |
| 522 | maximum_allocation = current_allocation; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 523 | |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 524 | pinfo->pointer = png_malloc(png_ptr, size); |
Glenn Randers-Pehrson | dff799e | 2004-08-07 21:42:49 -0500 | [diff] [blame] | 525 | /* Restore malloc_fn and free_fn */ |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 526 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 527 | png_set_mem_fn(png_ptr, |
| 528 | NULL, png_debug_malloc, png_debug_free); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 529 | |
Glenn Randers-Pehrson | 272489d | 2004-08-04 06:34:52 -0500 | [diff] [blame] | 530 | if (size != 0 && pinfo->pointer == NULL) |
| 531 | { |
| 532 | current_allocation -= size; |
| 533 | total_allocation -= size; |
Glenn Randers-Pehrson | dff799e | 2004-08-07 21:42:49 -0500 | [diff] [blame] | 534 | png_error(png_ptr, |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 535 | "out of memory in pngtest->png_debug_malloc"); |
Glenn Randers-Pehrson | 272489d | 2004-08-04 06:34:52 -0500 | [diff] [blame] | 536 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 537 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 538 | pinfo->next = pinformation; |
| 539 | pinformation = pinfo; |
| 540 | /* Make sure the caller isn't assuming zeroed memory. */ |
John Bowler | baeb6d1 | 2011-11-26 18:21:02 -0600 | [diff] [blame] | 541 | memset(pinfo->pointer, 0xdd, pinfo->size); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 542 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 543 | if (verbose != 0) |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 544 | printf("png_malloc %lu bytes at %p\n", (unsigned long)size, |
Glenn Randers-Pehrson | 6bc53be | 2006-06-16 07:52:03 -0500 | [diff] [blame] | 545 | pinfo->pointer); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 546 | |
Glenn Randers-Pehrson | 0f881d6 | 1998-02-07 10:20:57 -0600 | [diff] [blame] | 547 | return (png_voidp)(pinfo->pointer); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 548 | } |
| 549 | } |
| 550 | |
| 551 | /* Free a pointer. It is removed from the list at the same time. */ |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 552 | void PNGCBAPI |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 553 | png_debug_free(png_structp png_ptr, png_voidp ptr) |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 554 | { |
| 555 | if (png_ptr == NULL) |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 556 | fprintf(STDERR, "NULL pointer to png_debug_free.\n"); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 557 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 558 | if (ptr == 0) |
| 559 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 560 | #if 0 /* This happens all the time. */ |
| 561 | fprintf(STDERR, "WARNING: freeing NULL pointer\n"); |
| 562 | #endif |
| 563 | return; |
| 564 | } |
| 565 | |
| 566 | /* Unlink the element from the list. */ |
| 567 | { |
John Bowler | baeb6d1 | 2011-11-26 18:21:02 -0600 | [diff] [blame] | 568 | memory_infop *ppinfo = &pinformation; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 569 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 570 | for (;;) |
| 571 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 572 | memory_infop pinfo = *ppinfo; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 573 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 574 | if (pinfo->pointer == ptr) |
| 575 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 576 | *ppinfo = pinfo->next; |
| 577 | current_allocation -= pinfo->size; |
| 578 | if (current_allocation < 0) |
| 579 | fprintf(STDERR, "Duplicate free of memory\n"); |
| 580 | /* We must free the list element too, but first kill |
Glenn Randers-Pehrson | 8686fff | 1998-05-21 09:27:50 -0500 | [diff] [blame] | 581 | the memory that is to be freed. */ |
John Bowler | baeb6d1 | 2011-11-26 18:21:02 -0600 | [diff] [blame] | 582 | memset(ptr, 0x55, pinfo->size); |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 583 | if (pinfo != NULL) |
Glenn Randers-Pehrson | 83b132f | 2013-11-28 14:00:04 -0600 | [diff] [blame] | 584 | free(pinfo); |
Glenn Randers-Pehrson | 895a9c9 | 2008-07-25 08:51:18 -0500 | [diff] [blame] | 585 | pinfo = NULL; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 586 | break; |
| 587 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 588 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 589 | if (pinfo->next == NULL) |
| 590 | { |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 591 | fprintf(STDERR, "Pointer %p not found\n", ptr); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 592 | break; |
| 593 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 594 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 595 | ppinfo = &pinfo->next; |
| 596 | } |
| 597 | } |
| 598 | |
| 599 | /* Finally free the data. */ |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 600 | if (verbose != 0) |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 601 | printf("Freeing %p\n", ptr); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 602 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 603 | if (ptr != NULL) |
Glenn Randers-Pehrson | 83b132f | 2013-11-28 14:00:04 -0600 | [diff] [blame] | 604 | free(ptr); |
Glenn Randers-Pehrson | 895a9c9 | 2008-07-25 08:51:18 -0500 | [diff] [blame] | 605 | ptr = NULL; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 606 | } |
Glenn Randers-Pehrson | d029a75 | 2004-08-09 21:50:32 -0500 | [diff] [blame] | 607 | #endif /* PNG_USER_MEM_SUPPORTED && PNG_DEBUG */ |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 608 | /* END of code to test memory allocation/deallocation */ |
| 609 | |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 610 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 611 | #ifdef PNG_READ_USER_CHUNKS_SUPPORTED |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 612 | /* Demonstration of user chunk support of the sTER and vpAg chunks */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 613 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 614 | /* (sTER is a public chunk not yet known by libpng. vpAg is a private |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 615 | chunk used in ImageMagick to store "virtual page" size). */ |
| 616 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 617 | static struct user_chunk_data |
| 618 | { |
| 619 | png_const_infop info_ptr; |
| 620 | png_uint_32 vpAg_width, vpAg_height; |
| 621 | png_byte vpAg_units; |
| 622 | png_byte sTER_mode; |
| 623 | int location[2]; |
| 624 | } |
| 625 | user_chunk_data; |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 626 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 627 | /* Used for location and order; zero means nothing. */ |
| 628 | #define have_sTER 0x01 |
| 629 | #define have_vpAg 0x02 |
| 630 | #define before_PLTE 0x10 |
| 631 | #define before_IDAT 0x20 |
| 632 | #define after_IDAT 0x40 |
| 633 | |
| 634 | static void |
| 635 | init_callback_info(png_const_infop info_ptr) |
| 636 | { |
| 637 | MEMZERO(user_chunk_data); |
| 638 | user_chunk_data.info_ptr = info_ptr; |
| 639 | } |
| 640 | |
| 641 | static int |
| 642 | set_location(png_structp png_ptr, struct user_chunk_data *data, int what) |
| 643 | { |
| 644 | int location; |
| 645 | |
| 646 | if ((data->location[0] & what) || (data->location[1] & what)) |
| 647 | return 0; /* already have one of these */ |
| 648 | |
Glenn Randers-Pehrson | 6cae24c | 2014-10-13 11:11:21 -0500 | [diff] [blame] | 649 | /* Find where we are (the code below zeroes info_ptr to indicate that the |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 650 | * chunks before the first IDAT have been read.) |
| 651 | */ |
| 652 | if (data->info_ptr == NULL) /* after IDAT */ |
| 653 | location = what | after_IDAT; |
| 654 | |
| 655 | else if (png_get_valid(png_ptr, data->info_ptr, PNG_INFO_PLTE)) |
| 656 | location = what | before_IDAT; |
| 657 | |
| 658 | else |
| 659 | location = what | before_PLTE; |
| 660 | |
| 661 | if (data->location[0] == 0) |
| 662 | data->location[0] = location; |
| 663 | |
| 664 | else |
| 665 | data->location[1] = location; |
| 666 | |
| 667 | return 1; /* handled */ |
| 668 | } |
John Bowler | 3c1f698 | 2012-08-16 20:47:34 -0500 | [diff] [blame] | 669 | |
Glenn Randers-Pehrson | 24afd07 | 2014-03-05 16:55:19 -0600 | [diff] [blame] | 670 | static int PNGCBAPI |
Glenn Randers-Pehrson | c978642 | 2014-03-05 17:14:16 -0600 | [diff] [blame] | 671 | read_user_chunk_callback(png_struct *png_ptr, png_unknown_chunkp chunk) |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 672 | { |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 673 | struct user_chunk_data *my_user_chunk_data = |
| 674 | (struct user_chunk_data*)png_get_user_chunk_ptr(png_ptr); |
| 675 | |
| 676 | if (my_user_chunk_data == NULL) |
| 677 | png_error(png_ptr, "lost user chunk pointer"); |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 678 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 679 | /* Return one of the following: |
| 680 | * return (-n); chunk had an error |
| 681 | * return (0); did not recognize |
| 682 | * return (n); success |
| 683 | * |
| 684 | * The unknown chunk structure contains the chunk data: |
| 685 | * png_byte name[5]; |
| 686 | * png_byte *data; |
| 687 | * png_size_t size; |
| 688 | * |
| 689 | * Note that libpng has already taken care of the CRC handling. |
| 690 | */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 691 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 692 | if (chunk->name[0] == 115 && chunk->name[1] == 84 && /* s T */ |
| 693 | chunk->name[2] == 69 && chunk->name[3] == 82) /* E R */ |
| 694 | { |
| 695 | /* Found sTER chunk */ |
| 696 | if (chunk->size != 1) |
| 697 | return (-1); /* Error return */ |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 698 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 699 | if (chunk->data[0] != 0 && chunk->data[0] != 1) |
| 700 | return (-1); /* Invalid mode */ |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 701 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 702 | if (set_location(png_ptr, my_user_chunk_data, have_sTER)) |
| 703 | { |
| 704 | my_user_chunk_data->sTER_mode=chunk->data[0]; |
| 705 | return (1); |
| 706 | } |
| 707 | |
| 708 | else |
| 709 | return (0); /* duplicate sTER - give it to libpng */ |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 710 | } |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 711 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 712 | if (chunk->name[0] != 118 || chunk->name[1] != 112 || /* v p */ |
| 713 | chunk->name[2] != 65 || chunk->name[3] != 103) /* A g */ |
| 714 | return (0); /* Did not recognize */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 715 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 716 | /* Found ImageMagick vpAg chunk */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 717 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 718 | if (chunk->size != 9) |
| 719 | return (-1); /* Error return */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 720 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 721 | if (!set_location(png_ptr, my_user_chunk_data, have_vpAg)) |
| 722 | return (0); /* duplicate vpAg */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 723 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 724 | my_user_chunk_data->vpAg_width = png_get_uint_31(png_ptr, chunk->data); |
| 725 | my_user_chunk_data->vpAg_height = png_get_uint_31(png_ptr, chunk->data + 4); |
| 726 | my_user_chunk_data->vpAg_units = chunk->data[8]; |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 727 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 728 | return (1); |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 729 | } |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 730 | |
| 731 | #ifdef PNG_WRITE_SUPPORTED |
| 732 | static void |
| 733 | write_sTER_chunk(png_structp write_ptr) |
| 734 | { |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 735 | png_byte sTER[5] = {115, 84, 69, 82, '\0'}; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 736 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 737 | if (verbose != 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 738 | fprintf(STDERR, "\n stereo mode = %d\n", user_chunk_data.sTER_mode); |
| 739 | |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 740 | png_write_chunk(write_ptr, sTER, &user_chunk_data.sTER_mode, 1); |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 741 | } |
| 742 | |
| 743 | static void |
| 744 | write_vpAg_chunk(png_structp write_ptr) |
| 745 | { |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 746 | png_byte vpAg[5] = {118, 112, 65, 103, '\0'}; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 747 | |
| 748 | png_byte vpag_chunk_data[9]; |
| 749 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 750 | if (verbose != 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 751 | fprintf(STDERR, " vpAg = %lu x %lu, units = %d\n", |
| 752 | (unsigned long)user_chunk_data.vpAg_width, |
| 753 | (unsigned long)user_chunk_data.vpAg_height, |
| 754 | user_chunk_data.vpAg_units); |
| 755 | |
| 756 | png_save_uint_32(vpag_chunk_data, user_chunk_data.vpAg_width); |
| 757 | png_save_uint_32(vpag_chunk_data + 4, user_chunk_data.vpAg_height); |
| 758 | vpag_chunk_data[8] = user_chunk_data.vpAg_units; |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 759 | png_write_chunk(write_ptr, vpAg, vpag_chunk_data, 9); |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 760 | } |
| 761 | |
| 762 | static void |
| 763 | write_chunks(png_structp write_ptr, int location) |
| 764 | { |
| 765 | int i; |
| 766 | |
| 767 | /* Notice that this preserves the original chunk order, however chunks |
| 768 | * intercepted by the callback will be written *after* chunks passed to |
| 769 | * libpng. This will actually reverse a pair of sTER chunks or a pair of |
| 770 | * vpAg chunks, resulting in an error later. This is not worth worrying |
| 771 | * about - the chunks should not be duplicated! |
| 772 | */ |
| 773 | for (i=0; i<2; ++i) |
| 774 | { |
| 775 | if (user_chunk_data.location[i] == (location | have_sTER)) |
| 776 | write_sTER_chunk(write_ptr); |
| 777 | |
| 778 | else if (user_chunk_data.location[i] == (location | have_vpAg)) |
| 779 | write_vpAg_chunk(write_ptr); |
| 780 | } |
| 781 | } |
| 782 | #endif /* PNG_WRITE_SUPPORTED */ |
| 783 | #else /* !PNG_READ_USER_CHUNKS_SUPPORTED */ |
| 784 | # define write_chunks(pp,loc) ((void)0) |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 785 | #endif |
| 786 | /* END of code to demonstrate user chunk support */ |
| 787 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 788 | /* START of code to check that libpng has the required text support; this only |
| 789 | * checks for the write support because if read support is missing the chunk |
| 790 | * will simply not be reported back to pngtest. |
| 791 | */ |
| 792 | #ifdef PNG_TEXT_SUPPORTED |
| 793 | static void |
| 794 | pngtest_check_text_support(png_const_structp png_ptr, png_textp text_ptr, |
| 795 | int num_text) |
| 796 | { |
| 797 | while (num_text > 0) |
| 798 | { |
| 799 | switch (text_ptr[--num_text].compression) |
| 800 | { |
| 801 | case PNG_TEXT_COMPRESSION_NONE: |
| 802 | break; |
| 803 | |
| 804 | case PNG_TEXT_COMPRESSION_zTXt: |
| 805 | # ifndef PNG_WRITE_zTXt_SUPPORTED |
| 806 | ++unsupported_chunks; |
| 807 | # endif |
| 808 | break; |
| 809 | |
| 810 | case PNG_ITXT_COMPRESSION_NONE: |
| 811 | case PNG_ITXT_COMPRESSION_zTXt: |
| 812 | # ifndef PNG_WRITE_iTXt_SUPPORTED |
| 813 | ++unsupported_chunks; |
| 814 | # endif |
| 815 | break; |
| 816 | |
| 817 | default: |
| 818 | /* This is an error */ |
| 819 | png_error(png_ptr, "invalid text chunk compression field"); |
| 820 | break; |
| 821 | } |
| 822 | } |
| 823 | } |
| 824 | #endif |
| 825 | /* END of code to check that libpng has the required text support */ |
| 826 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 827 | /* Test one file */ |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 828 | static int |
Glenn Randers-Pehrson | 7cd899c | 1998-03-07 16:17:42 -0600 | [diff] [blame] | 829 | test_one_file(PNG_CONST char *inname, PNG_CONST char *outname) |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 830 | { |
Glenn Randers-Pehrson | 316f97a | 2000-07-08 13:19:41 -0500 | [diff] [blame] | 831 | static png_FILE_p fpin; |
| 832 | static png_FILE_p fpout; /* "static" prevents setjmp corruption */ |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 833 | pngtest_error_parameters error_parameters; |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 834 | png_structp read_ptr; |
| 835 | png_infop read_info_ptr, end_info_ptr; |
| 836 | #ifdef PNG_WRITE_SUPPORTED |
| 837 | png_structp write_ptr; |
| 838 | png_infop write_info_ptr; |
| 839 | png_infop write_end_info_ptr; |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 840 | int interlace_preserved = 1; |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 841 | #else |
| 842 | png_structp write_ptr = NULL; |
| 843 | png_infop write_info_ptr = NULL; |
| 844 | png_infop write_end_info_ptr = NULL; |
| 845 | #endif |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 846 | png_bytep row_buf; |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 847 | png_uint_32 y; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 848 | png_uint_32 width, height; |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 849 | int num_pass = 1, pass; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 850 | int bit_depth, color_type; |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 851 | |
Glenn Randers-Pehrson | 3f54925 | 2001-10-27 07:35:13 -0500 | [diff] [blame] | 852 | row_buf = NULL; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 853 | error_parameters.file_name = inname; |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 854 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 855 | if ((fpin = fopen(inname, "rb")) == NULL) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 856 | { |
| 857 | fprintf(STDERR, "Could not find input file %s\n", inname); |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 858 | return (1); |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 859 | } |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 860 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 861 | if ((fpout = fopen(outname, "wb")) == NULL) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 862 | { |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 863 | fprintf(STDERR, "Could not open output file %s\n", outname); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 864 | FCLOSE(fpin); |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 865 | return (1); |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 866 | } |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 867 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 868 | pngtest_debug("Allocating read and write structures"); |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 869 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 870 | read_ptr = |
| 871 | png_create_read_struct_2(PNG_LIBPNG_VER_STRING, NULL, |
Glenn Randers-Pehrson | d7da8bb | 2010-03-13 20:30:10 -0600 | [diff] [blame] | 872 | NULL, NULL, NULL, png_debug_malloc, png_debug_free); |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 873 | #else |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 874 | read_ptr = |
| 875 | png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 876 | #endif |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 877 | png_set_error_fn(read_ptr, &error_parameters, pngtest_error, |
| 878 | pngtest_warning); |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 879 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 880 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 881 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 882 | write_ptr = |
| 883 | png_create_write_struct_2(PNG_LIBPNG_VER_STRING, NULL, |
| 884 | NULL, NULL, NULL, png_debug_malloc, png_debug_free); |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 885 | #else |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 886 | write_ptr = |
| 887 | png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL); |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 888 | #endif |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 889 | png_set_error_fn(write_ptr, &error_parameters, pngtest_error, |
| 890 | pngtest_warning); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 891 | #endif |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 892 | pngtest_debug("Allocating read_info, write_info and end_info structures"); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 893 | read_info_ptr = png_create_info_struct(read_ptr); |
Glenn Randers-Pehrson | 1fd5fb3 | 2001-05-06 05:34:26 -0500 | [diff] [blame] | 894 | end_info_ptr = png_create_info_struct(read_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 895 | #ifdef PNG_WRITE_SUPPORTED |
| 896 | write_info_ptr = png_create_info_struct(write_ptr); |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 897 | write_end_info_ptr = png_create_info_struct(write_ptr); |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 898 | #endif |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 899 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 900 | #ifdef PNG_READ_USER_CHUNKS_SUPPORTED |
| 901 | init_callback_info(read_info_ptr); |
| 902 | png_set_read_user_chunk_fn(read_ptr, &user_chunk_data, |
| 903 | read_user_chunk_callback); |
| 904 | #endif |
| 905 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 906 | #ifdef PNG_SETJMP_SUPPORTED |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 907 | pngtest_debug("Setting jmpbuf for read struct"); |
Glenn Randers-Pehrson | 520a764 | 2000-03-21 05:13:06 -0600 | [diff] [blame] | 908 | if (setjmp(png_jmpbuf(read_ptr))) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 909 | { |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 910 | fprintf(STDERR, "%s -> %s: libpng read error\n", inname, outname); |
Glenn Randers-Pehrson | 895a9c9 | 2008-07-25 08:51:18 -0500 | [diff] [blame] | 911 | png_free(read_ptr, row_buf); |
| 912 | row_buf = NULL; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 913 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 914 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 915 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 916 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 917 | #endif |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 918 | FCLOSE(fpin); |
| 919 | FCLOSE(fpout); |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 920 | return (1); |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 921 | } |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 922 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 923 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 924 | pngtest_debug("Setting jmpbuf for write struct"); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 925 | |
Glenn Randers-Pehrson | 520a764 | 2000-03-21 05:13:06 -0600 | [diff] [blame] | 926 | if (setjmp(png_jmpbuf(write_ptr))) |
Guy Schalnat | b2e01bd | 1996-01-26 01:38:47 -0600 | [diff] [blame] | 927 | { |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 928 | fprintf(STDERR, "%s -> %s: libpng write error\n", inname, outname); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 929 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 930 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 931 | #ifdef PNG_WRITE_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 932 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 933 | #endif |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 934 | FCLOSE(fpin); |
| 935 | FCLOSE(fpout); |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 936 | return (1); |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 937 | } |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 938 | #endif |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 939 | #endif |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 940 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 941 | if (strict != 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 942 | { |
| 943 | /* Treat png_benign_error() as errors on read */ |
| 944 | png_set_benign_errors(read_ptr, 0); |
| 945 | |
| 946 | #ifdef PNG_WRITE_SUPPORTED |
| 947 | /* Treat them as errors on write */ |
| 948 | png_set_benign_errors(write_ptr, 0); |
| 949 | #endif |
| 950 | |
| 951 | /* if strict is not set, then app warnings and errors are treated as |
| 952 | * warnings in release builds, but not in unstable builds; this can be |
| 953 | * changed with '--relaxed'. |
| 954 | */ |
| 955 | } |
| 956 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 957 | else if (relaxed != 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 958 | { |
| 959 | /* Allow application (pngtest) errors and warnings to pass */ |
| 960 | png_set_benign_errors(read_ptr, 1); |
| 961 | |
| 962 | #ifdef PNG_WRITE_SUPPORTED |
| 963 | png_set_benign_errors(write_ptr, 1); |
| 964 | #endif |
| 965 | } |
| 966 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 967 | pngtest_debug("Initializing input and output streams"); |
Glenn Randers-Pehrson | dbd4014 | 2009-08-31 08:42:02 -0500 | [diff] [blame] | 968 | #ifdef PNG_STDIO_SUPPORTED |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 969 | png_init_io(read_ptr, fpin); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 970 | # ifdef PNG_WRITE_SUPPORTED |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 971 | png_init_io(write_ptr, fpout); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 972 | # endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 973 | #else |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 974 | png_set_read_fn(read_ptr, (png_voidp)fpin, pngtest_read_data); |
Glenn Randers-Pehrson | 8b6a889 | 2001-05-18 04:54:50 -0500 | [diff] [blame] | 975 | # ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 976 | png_set_write_fn(write_ptr, (png_voidp)fpout, pngtest_write_data, |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 977 | # ifdef PNG_WRITE_FLUSH_SUPPORTED |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 978 | pngtest_flush); |
Glenn Randers-Pehrson | 8b6a889 | 2001-05-18 04:54:50 -0500 | [diff] [blame] | 979 | # else |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 980 | NULL); |
Glenn Randers-Pehrson | 8b6a889 | 2001-05-18 04:54:50 -0500 | [diff] [blame] | 981 | # endif |
| 982 | # endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 983 | #endif |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 984 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 985 | if (status_dots_requested == 1) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 986 | { |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 987 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 988 | png_set_write_status_fn(write_ptr, write_row_callback); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 989 | #endif |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 990 | png_set_read_status_fn(read_ptr, read_row_callback); |
| 991 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 992 | |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 993 | else |
| 994 | { |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 995 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 996 | png_set_write_status_fn(write_ptr, NULL); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 997 | #endif |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 998 | png_set_read_status_fn(read_ptr, NULL); |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 999 | } |
| 1000 | |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1001 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1002 | { |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1003 | int i; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1004 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1005 | for (i = 0; i<256; i++) |
| 1006 | filters_used[i] = 0; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1007 | |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1008 | png_set_read_user_transform_fn(read_ptr, count_filters); |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1009 | } |
| 1010 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1011 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1012 | zero_samples = 0; |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1013 | png_set_write_user_transform_fn(write_ptr, count_zero_samples); |
| 1014 | #endif |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1015 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1016 | #ifdef PNG_SET_UNKNOWN_CHUNKS_SUPPORTED |
| 1017 | /* Preserve all the unknown chunks, if possible. If this is disabled then, |
| 1018 | * even if the png_{get,set}_unknown_chunks stuff is enabled, we can't use |
| 1019 | * libpng to *save* the unknown chunks on read (because we can't switch the |
| 1020 | * save option on!) |
| 1021 | * |
| 1022 | * Notice that if SET_UNKNOWN_CHUNKS is *not* supported read will discard all |
| 1023 | * unknown chunks and write will write them all. |
| 1024 | */ |
| 1025 | #ifdef PNG_SAVE_UNKNOWN_CHUNKS_SUPPORTED |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1026 | png_set_keep_unknown_chunks(read_ptr, PNG_HANDLE_CHUNK_ALWAYS, |
| 1027 | NULL, 0); |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1028 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1029 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1030 | png_set_keep_unknown_chunks(write_ptr, PNG_HANDLE_CHUNK_ALWAYS, |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1031 | NULL, 0); |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1032 | #endif |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1033 | #endif |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1034 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1035 | pngtest_debug("Reading info struct"); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1036 | png_read_info(read_ptr, read_info_ptr); |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1037 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1038 | #ifdef PNG_READ_USER_CHUNKS_SUPPORTED |
| 1039 | /* This is a bit of a hack; there is no obvious way in the callback function |
| 1040 | * to determine that the chunks before the first IDAT have been read, so |
| 1041 | * remove the info_ptr (which is only used to determine position relative to |
| 1042 | * PLTE) here to indicate that we are after the IDAT. |
| 1043 | */ |
| 1044 | user_chunk_data.info_ptr = NULL; |
| 1045 | #endif |
| 1046 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1047 | pngtest_debug("Transferring info struct"); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1048 | { |
| 1049 | int interlace_type, compression_type, filter_type; |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1050 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1051 | if (png_get_IHDR(read_ptr, read_info_ptr, &width, &height, &bit_depth, |
| 1052 | &color_type, &interlace_type, &compression_type, &filter_type)) |
| 1053 | { |
| 1054 | png_set_IHDR(write_ptr, write_info_ptr, width, height, bit_depth, |
| 1055 | color_type, interlace_type, compression_type, filter_type); |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 1056 | #ifndef PNG_READ_INTERLACING_SUPPORTED |
| 1057 | /* num_pass will not be set below, set it here if the image is |
| 1058 | * interlaced: what happens is that write interlacing is *not* turned |
| 1059 | * on an the partial interlaced rows are written directly. |
| 1060 | */ |
| 1061 | switch (interlace_type) |
| 1062 | { |
| 1063 | case PNG_INTERLACE_NONE: |
| 1064 | num_pass = 1; |
| 1065 | break; |
| 1066 | |
| 1067 | case PNG_INTERLACE_ADAM7: |
| 1068 | num_pass = 7; |
| 1069 | break; |
| 1070 | |
| 1071 | default: |
| 1072 | png_error(read_ptr, "invalid interlace type"); |
| 1073 | /*NOT REACHED*/ |
| 1074 | } |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1075 | #endif |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1076 | } |
| 1077 | } |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1078 | #ifdef PNG_FIXED_POINT_SUPPORTED |
| 1079 | #ifdef PNG_cHRM_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1080 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1081 | png_fixed_point white_x, white_y, red_x, red_y, green_x, green_y, blue_x, |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1082 | blue_y; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1083 | |
Glenn Randers-Pehrson | e3f3c4e | 2010-02-07 18:08:50 -0600 | [diff] [blame] | 1084 | if (png_get_cHRM_fixed(read_ptr, read_info_ptr, &white_x, &white_y, |
| 1085 | &red_x, &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1086 | { |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1087 | png_set_cHRM_fixed(write_ptr, write_info_ptr, white_x, white_y, red_x, |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1088 | red_y, green_x, green_y, blue_x, blue_y); |
| 1089 | } |
| 1090 | } |
| 1091 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1092 | #ifdef PNG_gAMA_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1093 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1094 | png_fixed_point gamma; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1095 | |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1096 | if (png_get_gAMA_fixed(read_ptr, read_info_ptr, &gamma)) |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1097 | png_set_gAMA_fixed(write_ptr, write_info_ptr, gamma); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1098 | } |
| 1099 | #endif |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1100 | #else /* Use floating point versions */ |
Glenn Randers-Pehrson | dbd4014 | 2009-08-31 08:42:02 -0500 | [diff] [blame] | 1101 | #ifdef PNG_FLOATING_POINT_SUPPORTED |
| 1102 | #ifdef PNG_cHRM_SUPPORTED |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1103 | { |
| 1104 | double white_x, white_y, red_x, red_y, green_x, green_y, blue_x, |
| 1105 | blue_y; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1106 | |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1107 | if (png_get_cHRM(read_ptr, read_info_ptr, &white_x, &white_y, &red_x, |
| 1108 | &red_y, &green_x, &green_y, &blue_x, &blue_y)) |
| 1109 | { |
| 1110 | png_set_cHRM(write_ptr, write_info_ptr, white_x, white_y, red_x, |
| 1111 | red_y, green_x, green_y, blue_x, blue_y); |
| 1112 | } |
| 1113 | } |
| 1114 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1115 | #ifdef PNG_gAMA_SUPPORTED |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1116 | { |
| 1117 | double gamma; |
| 1118 | |
| 1119 | if (png_get_gAMA(read_ptr, read_info_ptr, &gamma)) |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1120 | png_set_gAMA(write_ptr, write_info_ptr, gamma); |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1121 | } |
| 1122 | #endif |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 1123 | #endif /* Floating point */ |
| 1124 | #endif /* Fixed point */ |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1125 | #ifdef PNG_iCCP_SUPPORTED |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1126 | { |
| 1127 | png_charp name; |
Glenn Randers-Pehrson | 31aee0d | 2010-07-29 17:39:14 -0500 | [diff] [blame] | 1128 | png_bytep profile; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1129 | png_uint_32 proflen; |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1130 | int compression_type; |
| 1131 | |
| 1132 | if (png_get_iCCP(read_ptr, read_info_ptr, &name, &compression_type, |
| 1133 | &profile, &proflen)) |
| 1134 | { |
| 1135 | png_set_iCCP(write_ptr, write_info_ptr, name, compression_type, |
| 1136 | profile, proflen); |
| 1137 | } |
| 1138 | } |
| 1139 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1140 | #ifdef PNG_sRGB_SUPPORTED |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 1141 | { |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1142 | int intent; |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 1143 | |
| 1144 | if (png_get_sRGB(read_ptr, read_info_ptr, &intent)) |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 1145 | png_set_sRGB(write_ptr, write_info_ptr, intent); |
Glenn Randers-Pehrson | b6ce43d | 1998-01-01 07:13:13 -0600 | [diff] [blame] | 1146 | } |
| 1147 | #endif |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1148 | { |
| 1149 | png_colorp palette; |
| 1150 | int num_palette; |
| 1151 | |
| 1152 | if (png_get_PLTE(read_ptr, read_info_ptr, &palette, &num_palette)) |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1153 | png_set_PLTE(write_ptr, write_info_ptr, palette, num_palette); |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1154 | } |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1155 | #ifdef PNG_bKGD_SUPPORTED |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1156 | { |
| 1157 | png_color_16p background; |
| 1158 | |
| 1159 | if (png_get_bKGD(read_ptr, read_info_ptr, &background)) |
| 1160 | { |
| 1161 | png_set_bKGD(write_ptr, write_info_ptr, background); |
| 1162 | } |
| 1163 | } |
| 1164 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1165 | #ifdef PNG_hIST_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1166 | { |
| 1167 | png_uint_16p hist; |
| 1168 | |
| 1169 | if (png_get_hIST(read_ptr, read_info_ptr, &hist)) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1170 | png_set_hIST(write_ptr, write_info_ptr, hist); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1171 | } |
| 1172 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1173 | #ifdef PNG_oFFs_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1174 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1175 | png_int_32 offset_x, offset_y; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1176 | int unit_type; |
| 1177 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1178 | if (png_get_oFFs(read_ptr, read_info_ptr, &offset_x, &offset_y, |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1179 | &unit_type)) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1180 | { |
| 1181 | png_set_oFFs(write_ptr, write_info_ptr, offset_x, offset_y, unit_type); |
| 1182 | } |
| 1183 | } |
| 1184 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1185 | #ifdef PNG_pCAL_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1186 | { |
| 1187 | png_charp purpose, units; |
| 1188 | png_charpp params; |
| 1189 | png_int_32 X0, X1; |
| 1190 | int type, nparams; |
| 1191 | |
| 1192 | if (png_get_pCAL(read_ptr, read_info_ptr, &purpose, &X0, &X1, &type, |
| 1193 | &nparams, &units, ¶ms)) |
| 1194 | { |
| 1195 | png_set_pCAL(write_ptr, write_info_ptr, purpose, X0, X1, type, |
| 1196 | nparams, units, params); |
| 1197 | } |
| 1198 | } |
| 1199 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1200 | #ifdef PNG_pHYs_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1201 | { |
| 1202 | png_uint_32 res_x, res_y; |
| 1203 | int unit_type; |
| 1204 | |
| 1205 | if (png_get_pHYs(read_ptr, read_info_ptr, &res_x, &res_y, &unit_type)) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1206 | png_set_pHYs(write_ptr, write_info_ptr, res_x, res_y, unit_type); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1207 | } |
| 1208 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1209 | #ifdef PNG_sBIT_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1210 | { |
| 1211 | png_color_8p sig_bit; |
| 1212 | |
| 1213 | if (png_get_sBIT(read_ptr, read_info_ptr, &sig_bit)) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1214 | png_set_sBIT(write_ptr, write_info_ptr, sig_bit); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1215 | } |
| 1216 | #endif |
Glenn Randers-Pehrson | 9c1bb20 | 2009-09-17 10:55:49 -0500 | [diff] [blame] | 1217 | #ifdef PNG_sCAL_SUPPORTED |
Glenn Randers-Pehrson | 8d9e494 | 2013-04-18 07:23:59 -0500 | [diff] [blame] | 1218 | #if defined(PNG_FLOATING_POINT_SUPPORTED) && \ |
| 1219 | defined(PNG_FLOATING_ARITHMETIC_SUPPORTED) |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1220 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1221 | int unit; |
Glenn Randers-Pehrson | 4766a24 | 2000-07-17 06:17:09 -0500 | [diff] [blame] | 1222 | double scal_width, scal_height; |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1223 | |
Glenn Randers-Pehrson | 4766a24 | 2000-07-17 06:17:09 -0500 | [diff] [blame] | 1224 | if (png_get_sCAL(read_ptr, read_info_ptr, &unit, &scal_width, |
| 1225 | &scal_height)) |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1226 | { |
Glenn Randers-Pehrson | 4766a24 | 2000-07-17 06:17:09 -0500 | [diff] [blame] | 1227 | png_set_sCAL(write_ptr, write_info_ptr, unit, scal_width, scal_height); |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1228 | } |
| 1229 | } |
| 1230 | #else |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1231 | #ifdef PNG_FIXED_POINT_SUPPORTED |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1232 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1233 | int unit; |
Glenn Randers-Pehrson | 4766a24 | 2000-07-17 06:17:09 -0500 | [diff] [blame] | 1234 | png_charp scal_width, scal_height; |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1235 | |
Glenn Randers-Pehrson | 4766a24 | 2000-07-17 06:17:09 -0500 | [diff] [blame] | 1236 | if (png_get_sCAL_s(read_ptr, read_info_ptr, &unit, &scal_width, |
| 1237 | &scal_height)) |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1238 | { |
Glenn Randers-Pehrson | e3f3c4e | 2010-02-07 18:08:50 -0600 | [diff] [blame] | 1239 | png_set_sCAL_s(write_ptr, write_info_ptr, unit, scal_width, |
| 1240 | scal_height); |
Glenn Randers-Pehrson | 166c5a3 | 1999-12-10 09:43:02 -0600 | [diff] [blame] | 1241 | } |
| 1242 | } |
| 1243 | #endif |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1244 | #endif |
| 1245 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1246 | #ifdef PNG_TEXT_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1247 | { |
| 1248 | png_textp text_ptr; |
| 1249 | int num_text; |
| 1250 | |
| 1251 | if (png_get_text(read_ptr, read_info_ptr, &text_ptr, &num_text) > 0) |
| 1252 | { |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1253 | pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); |
Glenn Randers-Pehrson | 15ea1fa | 2011-11-23 15:28:01 -0600 | [diff] [blame] | 1254 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1255 | pngtest_check_text_support(read_ptr, text_ptr, num_text); |
| 1256 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1257 | if (verbose != 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1258 | { |
| 1259 | int i; |
| 1260 | |
| 1261 | printf("\n"); |
| 1262 | for (i=0; i<num_text; i++) |
| 1263 | { |
| 1264 | printf(" Text compression[%d]=%d\n", |
| 1265 | i, text_ptr[i].compression); |
| 1266 | } |
| 1267 | } |
Glenn Randers-Pehrson | 15ea1fa | 2011-11-23 15:28:01 -0600 | [diff] [blame] | 1268 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1269 | png_set_text(write_ptr, write_info_ptr, text_ptr, num_text); |
| 1270 | } |
| 1271 | } |
| 1272 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1273 | #ifdef PNG_tIME_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1274 | { |
| 1275 | png_timep mod_time; |
| 1276 | |
| 1277 | if (png_get_tIME(read_ptr, read_info_ptr, &mod_time)) |
| 1278 | { |
| 1279 | png_set_tIME(write_ptr, write_info_ptr, mod_time); |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1280 | #ifdef PNG_TIME_RFC1123_SUPPORTED |
John Bowler | 40b2603 | 2011-12-22 08:09:15 -0600 | [diff] [blame] | 1281 | if (png_convert_to_rfc1123_buffer(tIME_string, mod_time)) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1282 | tIME_string[(sizeof tIME_string) - 1] = '\0'; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1283 | |
John Bowler | 40b2603 | 2011-12-22 08:09:15 -0600 | [diff] [blame] | 1284 | else |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1285 | { |
| 1286 | strncpy(tIME_string, "*** invalid time ***", (sizeof tIME_string)); |
| 1287 | tIME_string[(sizeof tIME_string) - 1] = '\0'; |
| 1288 | } |
John Bowler | 40b2603 | 2011-12-22 08:09:15 -0600 | [diff] [blame] | 1289 | |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1290 | tIME_chunk_present++; |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1291 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
Glenn Randers-Pehrson | c944229 | 1999-01-06 21:50:16 -0600 | [diff] [blame] | 1292 | } |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1293 | } |
| 1294 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1295 | #ifdef PNG_tRNS_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1296 | { |
Glenn Randers-Pehrson | 6abea75 | 2009-08-08 16:52:06 -0500 | [diff] [blame] | 1297 | png_bytep trans_alpha; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1298 | int num_trans; |
Glenn Randers-Pehrson | 56f6396 | 2008-10-06 10:16:17 -0500 | [diff] [blame] | 1299 | png_color_16p trans_color; |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1300 | |
Glenn Randers-Pehrson | 6abea75 | 2009-08-08 16:52:06 -0500 | [diff] [blame] | 1301 | if (png_get_tRNS(read_ptr, read_info_ptr, &trans_alpha, &num_trans, |
Glenn Randers-Pehrson | 56f6396 | 2008-10-06 10:16:17 -0500 | [diff] [blame] | 1302 | &trans_color)) |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1303 | { |
Glenn Randers-Pehrson | d29033f | 2009-11-07 10:46:42 -0600 | [diff] [blame] | 1304 | int sample_max = (1 << bit_depth); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1305 | /* libpng doesn't reject a tRNS chunk with out-of-range samples */ |
Glenn Randers-Pehrson | d29033f | 2009-11-07 10:46:42 -0600 | [diff] [blame] | 1306 | if (!((color_type == PNG_COLOR_TYPE_GRAY && |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1307 | (int)trans_color->gray > sample_max) || |
Glenn Randers-Pehrson | d29033f | 2009-11-07 10:46:42 -0600 | [diff] [blame] | 1308 | (color_type == PNG_COLOR_TYPE_RGB && |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1309 | ((int)trans_color->red > sample_max || |
| 1310 | (int)trans_color->green > sample_max || |
| 1311 | (int)trans_color->blue > sample_max)))) |
Glenn Randers-Pehrson | 6abea75 | 2009-08-08 16:52:06 -0500 | [diff] [blame] | 1312 | png_set_tRNS(write_ptr, write_info_ptr, trans_alpha, num_trans, |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1313 | trans_color); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1314 | } |
| 1315 | } |
| 1316 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1317 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1318 | { |
| 1319 | png_unknown_chunkp unknowns; |
Glenn Randers-Pehrson | 67439c4 | 2010-08-19 07:01:09 -0500 | [diff] [blame] | 1320 | int num_unknowns = png_get_unknown_chunks(read_ptr, read_info_ptr, |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1321 | &unknowns); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1322 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1323 | if (num_unknowns != 0) |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1324 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1325 | png_set_unknown_chunks(write_ptr, write_info_ptr, unknowns, |
| 1326 | num_unknowns); |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1327 | #if PNG_LIBPNG_VER < 10600 |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 1328 | /* Copy the locations from the read_info_ptr. The automatically |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1329 | * generated locations in write_end_info_ptr are wrong prior to 1.6.0 |
| 1330 | * because they are reset from the write pointer (removed in 1.6.0). |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1331 | */ |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1332 | { |
| 1333 | int i; |
| 1334 | for (i = 0; i < num_unknowns; i++) |
| 1335 | png_set_unknown_chunk_location(write_ptr, write_info_ptr, i, |
| 1336 | unknowns[i].location); |
| 1337 | } |
| 1338 | #endif |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1339 | } |
| 1340 | } |
| 1341 | #endif |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1342 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1343 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1344 | pngtest_debug("Writing info struct"); |
Glenn Randers-Pehrson | 5379b24 | 1999-11-27 10:22:33 -0600 | [diff] [blame] | 1345 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1346 | /* Write the info in two steps so that if we write the 'unknown' chunks here |
| 1347 | * they go to the correct place. |
| 1348 | */ |
| 1349 | png_write_info_before_PLTE(write_ptr, write_info_ptr); |
| 1350 | |
| 1351 | write_chunks(write_ptr, before_PLTE); /* before PLTE */ |
| 1352 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1353 | png_write_info(write_ptr, write_info_ptr); |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 1354 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1355 | write_chunks(write_ptr, before_IDAT); /* after PLTE */ |
Glenn Randers-Pehrson | d120996 | 2006-06-21 19:40:52 -0500 | [diff] [blame] | 1356 | #endif |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1357 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1358 | #ifdef SINGLE_ROWBUF_ALLOC |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1359 | pngtest_debug("Allocating row buffer..."); |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 1360 | row_buf = (png_bytep)png_malloc(read_ptr, |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1361 | png_get_rowbytes(read_ptr, read_info_ptr)); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1362 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1363 | pngtest_debug1("\t0x%08lx", (unsigned long)row_buf); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1364 | #endif /* SINGLE_ROWBUF_ALLOC */ |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1365 | pngtest_debug("Writing row data"); |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1366 | |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 1367 | #ifdef PNG_READ_INTERLACING_SUPPORTED |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1368 | num_pass = png_set_interlace_handling(read_ptr); |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 1369 | if (png_set_interlace_handling(write_ptr) != num_pass) |
| 1370 | png_error(write_ptr, "png_set_interlace_handling: inconsistent num_pass"); |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1371 | #endif |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1372 | |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1373 | #ifdef PNGTEST_TIMING |
| 1374 | t_stop = (float)clock(); |
| 1375 | t_misc += (t_stop - t_start); |
| 1376 | t_start = t_stop; |
| 1377 | #endif |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1378 | for (pass = 0; pass < num_pass; pass++) |
| 1379 | { |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1380 | pngtest_debug1("Writing row data for pass %d", pass); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1381 | for (y = 0; y < height; y++) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1382 | { |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1383 | #ifndef SINGLE_ROWBUF_ALLOC |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1384 | pngtest_debug2("Allocating row buffer (pass %d, y = %u)...", pass, y); |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1385 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1386 | row_buf = (png_bytep)png_malloc(read_ptr, |
| 1387 | png_get_rowbytes(read_ptr, read_info_ptr)); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1388 | |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1389 | pngtest_debug2("\t0x%08lx (%lu bytes)", (unsigned long)row_buf, |
| 1390 | (unsigned long)png_get_rowbytes(read_ptr, read_info_ptr)); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1391 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1392 | #endif /* !SINGLE_ROWBUF_ALLOC */ |
Glenn Randers-Pehrson | beb572e | 2006-08-19 13:59:24 -0500 | [diff] [blame] | 1393 | png_read_rows(read_ptr, (png_bytepp)&row_buf, NULL, 1); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1394 | |
| 1395 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1396 | #ifdef PNGTEST_TIMING |
| 1397 | t_stop = (float)clock(); |
| 1398 | t_decode += (t_stop - t_start); |
| 1399 | t_start = t_stop; |
| 1400 | #endif |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 1401 | png_write_rows(write_ptr, (png_bytepp)&row_buf, 1); |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1402 | #ifdef PNGTEST_TIMING |
| 1403 | t_stop = (float)clock(); |
| 1404 | t_encode += (t_stop - t_start); |
| 1405 | t_start = t_stop; |
| 1406 | #endif |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1407 | #endif /* PNG_WRITE_SUPPORTED */ |
| 1408 | |
| 1409 | #ifndef SINGLE_ROWBUF_ALLOC |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1410 | pngtest_debug2("Freeing row buffer (pass %d, y = %u)", pass, y); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1411 | png_free(read_ptr, row_buf); |
Glenn Randers-Pehrson | 895a9c9 | 2008-07-25 08:51:18 -0500 | [diff] [blame] | 1412 | row_buf = NULL; |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1413 | #endif /* !SINGLE_ROWBUF_ALLOC */ |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1414 | } |
| 1415 | } |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1416 | |
Glenn Randers-Pehrson | b372175 | 2013-09-30 13:56:44 -0500 | [diff] [blame] | 1417 | #ifdef PNG_STORE_UNKNOWN_CHUNKS_SUPPORTED |
| 1418 | # ifdef PNG_READ_UNKNOWN_CHUNKS_SUPPORTED |
| 1419 | png_free_data(read_ptr, read_info_ptr, PNG_FREE_UNKN, -1); |
| 1420 | # endif |
| 1421 | # ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
| 1422 | png_free_data(write_ptr, write_info_ptr, PNG_FREE_UNKN, -1); |
| 1423 | # endif |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1424 | #endif |
| 1425 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1426 | pngtest_debug("Reading and writing end_info data"); |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1427 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1428 | png_read_end(read_ptr, end_info_ptr); |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1429 | #ifdef PNG_TEXT_SUPPORTED |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 1430 | { |
| 1431 | png_textp text_ptr; |
| 1432 | int num_text; |
| 1433 | |
| 1434 | if (png_get_text(read_ptr, end_info_ptr, &text_ptr, &num_text) > 0) |
| 1435 | { |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1436 | pngtest_debug1("Handling %d iTXt/tEXt/zTXt chunks", num_text); |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1437 | |
| 1438 | pngtest_check_text_support(read_ptr, text_ptr, num_text); |
| 1439 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1440 | if (verbose != 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1441 | { |
| 1442 | int i; |
| 1443 | |
| 1444 | printf("\n"); |
| 1445 | for (i=0; i<num_text; i++) |
| 1446 | { |
| 1447 | printf(" Text compression[%d]=%d\n", |
| 1448 | i, text_ptr[i].compression); |
| 1449 | } |
| 1450 | } |
| 1451 | |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 1452 | png_set_text(write_ptr, write_end_info_ptr, text_ptr, num_text); |
| 1453 | } |
| 1454 | } |
| 1455 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1456 | #ifdef PNG_tIME_SUPPORTED |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 1457 | { |
| 1458 | png_timep mod_time; |
| 1459 | |
| 1460 | if (png_get_tIME(read_ptr, end_info_ptr, &mod_time)) |
| 1461 | { |
| 1462 | png_set_tIME(write_ptr, write_end_info_ptr, mod_time); |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1463 | #ifdef PNG_TIME_RFC1123_SUPPORTED |
John Bowler | 40b2603 | 2011-12-22 08:09:15 -0600 | [diff] [blame] | 1464 | if (png_convert_to_rfc1123_buffer(tIME_string, mod_time)) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1465 | tIME_string[(sizeof tIME_string) - 1] = '\0'; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1466 | |
John Bowler | 40b2603 | 2011-12-22 08:09:15 -0600 | [diff] [blame] | 1467 | else |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1468 | { |
| 1469 | strncpy(tIME_string, "*** invalid time ***", sizeof tIME_string); |
| 1470 | tIME_string[(sizeof tIME_string)-1] = '\0'; |
| 1471 | } |
John Bowler | 40b2603 | 2011-12-22 08:09:15 -0600 | [diff] [blame] | 1472 | |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 1473 | tIME_chunk_present++; |
| 1474 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1475 | } |
| 1476 | } |
| 1477 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1478 | #ifdef PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1479 | { |
| 1480 | png_unknown_chunkp unknowns; |
Glenn Randers-Pehrson | 67439c4 | 2010-08-19 07:01:09 -0500 | [diff] [blame] | 1481 | int num_unknowns = png_get_unknown_chunks(read_ptr, end_info_ptr, |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1482 | &unknowns); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1483 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1484 | if (num_unknowns != 0) |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1485 | { |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1486 | png_set_unknown_chunks(write_ptr, write_end_info_ptr, unknowns, |
| 1487 | num_unknowns); |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1488 | #if PNG_LIBPNG_VER < 10600 |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 1489 | /* Copy the locations from the read_info_ptr. The automatically |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1490 | * generated locations in write_end_info_ptr are wrong prior to 1.6.0 |
| 1491 | * because they are reset from the write pointer (removed in 1.6.0). |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1492 | */ |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1493 | { |
| 1494 | int i; |
| 1495 | for (i = 0; i < num_unknowns; i++) |
| 1496 | png_set_unknown_chunk_location(write_ptr, write_end_info_ptr, i, |
| 1497 | unknowns[i].location); |
| 1498 | } |
| 1499 | #endif |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1500 | } |
| 1501 | } |
| 1502 | #endif |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1503 | |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1504 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1505 | #ifdef PNG_WRITE_CUSTOMIZE_ZTXT_COMPRESSION_SUPPORTED |
| 1506 | /* Normally one would use Z_DEFAULT_STRATEGY for text compression. |
| 1507 | * This is here just to make pngtest replicate the results from libpng |
| 1508 | * versions prior to 1.5.4, and to test this new API. |
| 1509 | */ |
| 1510 | png_set_text_compression_strategy(write_ptr, Z_FILTERED); |
| 1511 | #endif |
| 1512 | |
| 1513 | /* When the unknown vpAg/sTER chunks are written by pngtest the only way to |
| 1514 | * do it is to write them *before* calling png_write_end. When unknown |
| 1515 | * chunks are written by libpng, however, they are written just before IEND. |
| 1516 | * There seems to be no way round this, however vpAg/sTER are not expected |
| 1517 | * after IDAT. |
| 1518 | */ |
| 1519 | write_chunks(write_ptr, after_IDAT); |
| 1520 | |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 1521 | png_write_end(write_ptr, write_end_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1522 | #endif |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 1523 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1524 | #ifdef PNG_EASY_ACCESS_SUPPORTED |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1525 | if (verbose != 0) |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1526 | { |
| 1527 | png_uint_32 iwidth, iheight; |
| 1528 | iwidth = png_get_image_width(write_ptr, write_info_ptr); |
| 1529 | iheight = png_get_image_height(write_ptr, write_info_ptr); |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1530 | fprintf(STDERR, "\n Image width = %lu, height = %lu\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1531 | (unsigned long)iwidth, (unsigned long)iheight); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1532 | } |
| 1533 | #endif |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1534 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1535 | pngtest_debug("Destroying data structs"); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1536 | #ifdef SINGLE_ROWBUF_ALLOC |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1537 | pngtest_debug("destroying row_buf for read_ptr"); |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1538 | png_free(read_ptr, row_buf); |
Glenn Randers-Pehrson | 895a9c9 | 2008-07-25 08:51:18 -0500 | [diff] [blame] | 1539 | row_buf = NULL; |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1540 | #endif /* SINGLE_ROWBUF_ALLOC */ |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1541 | pngtest_debug("destroying read_ptr, read_info_ptr, end_info_ptr"); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1542 | png_destroy_read_struct(&read_ptr, &read_info_ptr, &end_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1543 | #ifdef PNG_WRITE_SUPPORTED |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1544 | pngtest_debug("destroying write_end_info_ptr"); |
Glenn Randers-Pehrson | 6d8f3b0 | 1999-10-23 08:39:18 -0500 | [diff] [blame] | 1545 | png_destroy_info_struct(write_ptr, &write_end_info_ptr); |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1546 | pngtest_debug("destroying write_ptr, write_info_ptr"); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1547 | png_destroy_write_struct(&write_ptr, &write_info_ptr); |
Glenn Randers-Pehrson | 3097f61 | 2001-05-07 14:52:45 -0500 | [diff] [blame] | 1548 | #endif |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1549 | pngtest_debug("Destruction complete."); |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1550 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1551 | FCLOSE(fpin); |
| 1552 | FCLOSE(fpout); |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1553 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1554 | /* Summarize any warnings or errors and in 'strict' mode fail the test. |
| 1555 | * Unsupported chunks can result in warnings, in that case ignore the strict |
| 1556 | * setting, otherwise fail the test on warnings as well as errors. |
| 1557 | */ |
| 1558 | if (error_count > 0) |
| 1559 | { |
| 1560 | /* We don't really expect to get here because of the setjmp handling |
| 1561 | * above, but this is safe. |
| 1562 | */ |
| 1563 | fprintf(STDERR, "\n %s: %d libpng errors found (%d warnings)", |
| 1564 | inname, error_count, warning_count); |
| 1565 | |
| 1566 | if (strict != 0) |
| 1567 | return (1); |
| 1568 | } |
| 1569 | |
| 1570 | # ifdef PNG_WRITE_SUPPORTED |
| 1571 | /* If there we no write support nothing was written! */ |
| 1572 | else if (unsupported_chunks > 0) |
| 1573 | { |
| 1574 | fprintf(STDERR, "\n %s: unsupported chunks (%d)%s", |
| 1575 | inname, unsupported_chunks, strict ? ": IGNORED --strict!" : ""); |
| 1576 | } |
| 1577 | # endif |
| 1578 | |
| 1579 | else if (warning_count > 0) |
| 1580 | { |
| 1581 | fprintf(STDERR, "\n %s: %d libpng warnings found", |
| 1582 | inname, warning_count); |
| 1583 | |
| 1584 | if (strict != 0) |
| 1585 | return (1); |
| 1586 | } |
| 1587 | |
Glenn Randers-Pehrson | 31f92b0 | 2010-03-09 16:47:59 -0600 | [diff] [blame] | 1588 | pngtest_debug("Opening files for comparison"); |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1589 | if ((fpin = fopen(inname, "rb")) == NULL) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1590 | { |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 1591 | fprintf(STDERR, "Could not find file %s\n", inname); |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 1592 | return (1); |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1593 | } |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1594 | |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1595 | if ((fpout = fopen(outname, "rb")) == NULL) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1596 | { |
Guy Schalnat | e5a3779 | 1996-06-05 15:50:50 -0500 | [diff] [blame] | 1597 | fprintf(STDERR, "Could not find file %s\n", outname); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1598 | FCLOSE(fpin); |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 1599 | return (1); |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1600 | } |
Andreas Dilger | 47a0c42 | 1997-05-16 02:46:07 -0500 | [diff] [blame] | 1601 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1602 | #ifdef PNG_WRITE_SUPPORTED /* else nothing was written */ |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1603 | if (interlace_preserved != 0) /* else the files will be changed */ |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1604 | { |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1605 | for (;;) |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1606 | { |
John Bowler | 81dfd00 | 2013-12-01 15:07:09 -0600 | [diff] [blame] | 1607 | static int wrote_question = 0; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1608 | png_size_t num_in, num_out; |
| 1609 | char inbuf[256], outbuf[256]; |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1610 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1611 | num_in = fread(inbuf, 1, sizeof inbuf, fpin); |
| 1612 | num_out = fread(outbuf, 1, sizeof outbuf, fpout); |
| 1613 | |
| 1614 | if (num_in != num_out) |
Glenn Randers-Pehrson | cbe52d8 | 1998-02-28 07:00:24 -0600 | [diff] [blame] | 1615 | { |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1616 | fprintf(STDERR, "\nFiles %s and %s are of a different size\n", |
| 1617 | inname, outname); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1618 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1619 | if (wrote_question == 0 && unsupported_chunks == 0) |
| 1620 | { |
| 1621 | fprintf(STDERR, |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1622 | " Was %s written with the same maximum IDAT chunk size (%d bytes),", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1623 | inname, PNG_ZBUF_SIZE); |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1624 | fprintf(STDERR, |
| 1625 | "\n filtering heuristic (libpng default), compression"); |
| 1626 | fprintf(STDERR, |
| 1627 | " level (zlib default),\n and zlib version (%s)?\n\n", |
| 1628 | ZLIB_VERSION); |
| 1629 | wrote_question = 1; |
| 1630 | } |
| 1631 | |
| 1632 | FCLOSE(fpin); |
| 1633 | FCLOSE(fpout); |
| 1634 | |
| 1635 | if (strict != 0 && unsupported_chunks == 0) |
| 1636 | return (1); |
| 1637 | |
| 1638 | else |
| 1639 | return (0); |
Glenn Randers-Pehrson | cbe52d8 | 1998-02-28 07:00:24 -0600 | [diff] [blame] | 1640 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1641 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1642 | if (num_in == 0) |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1643 | break; |
Glenn Randers-Pehrson | 8e25a61 | 2011-09-26 20:57:33 -0500 | [diff] [blame] | 1644 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1645 | if (memcmp(inbuf, outbuf, num_in)) |
| 1646 | { |
| 1647 | fprintf(STDERR, "\nFiles %s and %s are different\n", inname, |
| 1648 | outname); |
Glenn Randers-Pehrson | 8e25a61 | 2011-09-26 20:57:33 -0500 | [diff] [blame] | 1649 | |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1650 | if (wrote_question == 0 && unsupported_chunks == 0) |
| 1651 | { |
| 1652 | fprintf(STDERR, |
| 1653 | " Was %s written with the same maximum IDAT chunk size (%d bytes),", |
| 1654 | inname, PNG_ZBUF_SIZE); |
| 1655 | fprintf(STDERR, |
| 1656 | "\n filtering heuristic (libpng default), compression"); |
| 1657 | fprintf(STDERR, |
| 1658 | " level (zlib default),\n and zlib version (%s)?\n\n", |
| 1659 | ZLIB_VERSION); |
| 1660 | wrote_question = 1; |
| 1661 | } |
| 1662 | |
| 1663 | FCLOSE(fpin); |
| 1664 | FCLOSE(fpout); |
| 1665 | |
| 1666 | /* NOTE: the unsupported_chunks escape is permitted here because |
| 1667 | * unsupported text chunk compression will result in the compression |
| 1668 | * mode being changed (to NONE) yet, in the test case, the result |
| 1669 | * can be exactly the same size! |
| 1670 | */ |
| 1671 | if (strict != 0 && unsupported_chunks == 0) |
| 1672 | return (1); |
| 1673 | |
| 1674 | else |
| 1675 | return (0); |
| 1676 | } |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1677 | } |
| 1678 | } |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1679 | #endif /* PNG_WRITE_SUPPORTED */ |
Guy Schalnat | 0f71645 | 1995-11-28 11:22:13 -0600 | [diff] [blame] | 1680 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1681 | FCLOSE(fpin); |
| 1682 | FCLOSE(fpout); |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1683 | |
Glenn Randers-Pehrson | b212002 | 1998-01-31 20:07:59 -0600 | [diff] [blame] | 1684 | return (0); |
Guy Schalnat | 0d58058 | 1995-07-20 02:43:20 -0500 | [diff] [blame] | 1685 | } |
Guy Schalnat | 51f0eb4 | 1995-09-26 05:22:39 -0500 | [diff] [blame] | 1686 | |
Glenn Randers-Pehrson | 4bb4d01 | 2009-05-20 12:45:29 -0500 | [diff] [blame] | 1687 | /* Input and output filenames */ |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1688 | #ifdef RISCOS |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1689 | static PNG_CONST char *inname = "pngtest/png"; |
| 1690 | static PNG_CONST char *outname = "pngout/png"; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1691 | #else |
Glenn Randers-Pehrson | 983ec16 | 1998-03-07 11:24:03 -0600 | [diff] [blame] | 1692 | static PNG_CONST char *inname = "pngtest.png"; |
| 1693 | static PNG_CONST char *outname = "pngout.png"; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1694 | #endif |
| 1695 | |
| 1696 | int |
| 1697 | main(int argc, char *argv[]) |
| 1698 | { |
| 1699 | int multiple = 0; |
| 1700 | int ierror = 0; |
| 1701 | |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1702 | fprintf(STDERR, "\n Testing libpng version %s\n", PNG_LIBPNG_VER_STRING); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1703 | fprintf(STDERR, " with zlib version %s\n", ZLIB_VERSION); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1704 | fprintf(STDERR, "%s", png_get_copyright(NULL)); |
Glenn Randers-Pehrson | 5379b24 | 1999-11-27 10:22:33 -0600 | [diff] [blame] | 1705 | /* Show the version of libpng used in building the library */ |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1706 | fprintf(STDERR, " library (%lu):%s", |
| 1707 | (unsigned long)png_access_version_number(), |
Glenn Randers-Pehrson | 1ef65b6 | 2000-05-12 06:19:53 -0500 | [diff] [blame] | 1708 | png_get_header_version(NULL)); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1709 | |
Glenn Randers-Pehrson | 5379b24 | 1999-11-27 10:22:33 -0600 | [diff] [blame] | 1710 | /* Show the version of libpng used in building the application */ |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1711 | fprintf(STDERR, " pngtest (%lu):%s", (unsigned long)PNG_LIBPNG_VER, |
Glenn Randers-Pehrson | 1ef65b6 | 2000-05-12 06:19:53 -0500 | [diff] [blame] | 1712 | PNG_HEADER_VERSION_STRING); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1713 | |
| 1714 | /* Do some consistency checking on the memory allocation settings, I'm |
Glenn Randers-Pehrson glennrp@comcast.net | b1c0d33 | 2009-05-15 20:39:34 -0500 | [diff] [blame] | 1715 | * not sure this matters, but it is nice to know, the first of these |
| 1716 | * tests should be impossible because of the way the macros are set |
| 1717 | * in pngconf.h |
| 1718 | */ |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 1719 | #if defined(MAXSEG_64K) && !defined(PNG_MAX_MALLOC_64K) |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1720 | fprintf(STDERR, " NOTE: Zlib compiled for max 64k, libpng not\n"); |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 1721 | #endif |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1722 | /* I think the following can happen. */ |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 1723 | #if !defined(MAXSEG_64K) && defined(PNG_MAX_MALLOC_64K) |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1724 | fprintf(STDERR, " NOTE: libpng compiled for max 64k, zlib not\n"); |
Glenn Randers-Pehrson | ea3bcd7 | 1998-03-07 14:33:00 -0600 | [diff] [blame] | 1725 | #endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1726 | |
| 1727 | if (strcmp(png_libpng_ver, PNG_LIBPNG_VER_STRING)) |
| 1728 | { |
| 1729 | fprintf(STDERR, |
| 1730 | "Warning: versions are different between png.h and png.c\n"); |
| 1731 | fprintf(STDERR, " png.h version: %s\n", PNG_LIBPNG_VER_STRING); |
| 1732 | fprintf(STDERR, " png.c version: %s\n\n", png_libpng_ver); |
| 1733 | ++ierror; |
| 1734 | } |
| 1735 | |
| 1736 | if (argc > 1) |
| 1737 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1738 | if (strcmp(argv[1], "-m") == 0) |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1739 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1740 | multiple = 1; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1741 | status_dots_requested = 0; |
| 1742 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1743 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1744 | else if (strcmp(argv[1], "-mv") == 0 || |
| 1745 | strcmp(argv[1], "-vm") == 0 ) |
| 1746 | { |
| 1747 | multiple = 1; |
| 1748 | verbose = 1; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1749 | status_dots_requested = 1; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1750 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1751 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1752 | else if (strcmp(argv[1], "-v") == 0) |
| 1753 | { |
| 1754 | verbose = 1; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1755 | status_dots_requested = 1; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1756 | inname = argv[2]; |
| 1757 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1758 | |
Glenn Randers-Pehrson | 8e25a61 | 2011-09-26 20:57:33 -0500 | [diff] [blame] | 1759 | else if (strcmp(argv[1], "--strict") == 0) |
| 1760 | { |
| 1761 | status_dots_requested = 0; |
| 1762 | verbose = 1; |
| 1763 | inname = argv[2]; |
| 1764 | strict++; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1765 | relaxed = 0; |
| 1766 | } |
| 1767 | |
| 1768 | else if (strcmp(argv[1], "--relaxed") == 0) |
| 1769 | { |
| 1770 | status_dots_requested = 0; |
| 1771 | verbose = 1; |
| 1772 | inname = argv[2]; |
| 1773 | strict = 0; |
| 1774 | relaxed++; |
Glenn Randers-Pehrson | 8e25a61 | 2011-09-26 20:57:33 -0500 | [diff] [blame] | 1775 | } |
| 1776 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1777 | else |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1778 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1779 | inname = argv[1]; |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1780 | status_dots_requested = 0; |
| 1781 | } |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1782 | } |
| 1783 | |
Glenn Randers-Pehrson | ebba074 | 2014-10-25 12:22:39 -0500 | [diff] [blame] | 1784 | if (multiple == 0 && argc == 3 + verbose) |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1785 | outname = argv[2 + verbose]; |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1786 | |
Glenn Randers-Pehrson | ebba074 | 2014-10-25 12:22:39 -0500 | [diff] [blame] | 1787 | if ((multiple == 0 && argc > 3 + verbose) || |
| 1788 | (multiple != 0 && argc < 2)) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1789 | { |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1790 | fprintf(STDERR, |
| 1791 | "usage: %s [infile.png] [outfile.png]\n\t%s -m {infile.png}\n", |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1792 | argv[0], argv[0]); |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1793 | fprintf(STDERR, |
| 1794 | " reads/writes one PNG file (without -m) or multiple files (-m)\n"); |
| 1795 | fprintf(STDERR, |
| 1796 | " with -m %s is used as a temporary file\n", outname); |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1797 | exit(1); |
| 1798 | } |
| 1799 | |
Glenn Randers-Pehrson | 0567015 | 2014-03-08 12:39:52 -0600 | [diff] [blame] | 1800 | if (multiple != 0) |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1801 | { |
| 1802 | int i; |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 1803 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1804 | int allocation_now = current_allocation; |
| 1805 | #endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1806 | for (i=2; i<argc; ++i) |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1807 | { |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1808 | int kerror; |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1809 | fprintf(STDERR, "\n Testing %s:", argv[i]); |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1810 | #if PNG_DEBUG > 0 |
| 1811 | fprintf(STDERR, "\n"); |
| 1812 | #endif |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1813 | kerror = test_one_file(argv[i], outname); |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 1814 | if (kerror == 0) |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1815 | { |
Glenn Randers-Pehrson | e3f3c4e | 2010-02-07 18:08:50 -0600 | [diff] [blame] | 1816 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED |
| 1817 | int k; |
| 1818 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1819 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 6bc53be | 2006-06-16 07:52:03 -0500 | [diff] [blame] | 1820 | fprintf(STDERR, "\n PASS (%lu zero samples)\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1821 | (unsigned long)zero_samples); |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1822 | #else |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1823 | fprintf(STDERR, " PASS\n"); |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 1824 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1825 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1826 | for (k = 0; k<256; k++) |
| 1827 | if (filters_used[k]) |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1828 | fprintf(STDERR, " Filter %d was used %lu times\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1829 | k, (unsigned long)filters_used[k]); |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1830 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1831 | #ifdef PNG_TIME_RFC1123_SUPPORTED |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1832 | if (tIME_chunk_present != 0) |
| 1833 | fprintf(STDERR, " tIME = %s\n", tIME_string); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1834 | |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1835 | tIME_chunk_present = 0; |
| 1836 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1837 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1838 | |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1839 | else |
| 1840 | { |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1841 | fprintf(STDERR, " FAIL\n"); |
| 1842 | ierror += kerror; |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1843 | } |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 1844 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1845 | if (allocation_now != current_allocation) |
| 1846 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1847 | current_allocation - allocation_now); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1848 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1849 | if (current_allocation != 0) |
| 1850 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1851 | memory_infop pinfo = pinformation; |
| 1852 | |
| 1853 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", |
| 1854 | current_allocation); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1855 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1856 | while (pinfo != NULL) |
| 1857 | { |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1858 | fprintf(STDERR, " %lu bytes at %p\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1859 | (unsigned long)pinfo->size, |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1860 | pinfo->pointer); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1861 | pinfo = pinfo->next; |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1862 | } |
Glenn Randers-Pehrson | 2687fcc | 1998-01-07 20:54:20 -0600 | [diff] [blame] | 1863 | } |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1864 | #endif |
| 1865 | } |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 1866 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 1867 | fprintf(STDERR, " Current memory allocation: %10d bytes\n", |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1868 | current_allocation); |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 1869 | fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1870 | maximum_allocation); |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 1871 | fprintf(STDERR, " Total memory allocation: %10d bytes\n", |
| 1872 | total_allocation); |
| 1873 | fprintf(STDERR, " Number of allocations: %10d\n", |
| 1874 | num_allocations); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1875 | #endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1876 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1877 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1878 | else |
| 1879 | { |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1880 | int i; |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1881 | for (i = 0; i<3; ++i) |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1882 | { |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1883 | int kerror; |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 1884 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1885 | int allocation_now = current_allocation; |
| 1886 | #endif |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1887 | if (i == 1) |
| 1888 | status_dots_requested = 1; |
| 1889 | |
| 1890 | else if (verbose == 0) |
| 1891 | status_dots_requested = 0; |
| 1892 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1893 | if (i == 0 || verbose == 1 || ierror != 0) |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1894 | { |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1895 | fprintf(STDERR, "\n Testing %s:", inname); |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1896 | #if PNG_DEBUG > 0 |
| 1897 | fprintf(STDERR, "\n"); |
| 1898 | #endif |
| 1899 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1900 | |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1901 | kerror = test_one_file(inname, outname); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1902 | |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1903 | if (kerror == 0) |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1904 | { |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1905 | if (verbose == 1 || i == 2) |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1906 | { |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1907 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1908 | int k; |
Glenn Randers-Pehrson | 6942d53 | 2000-05-01 09:31:54 -0500 | [diff] [blame] | 1909 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1910 | #ifdef PNG_WRITE_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 6bc53be | 2006-06-16 07:52:03 -0500 | [diff] [blame] | 1911 | fprintf(STDERR, "\n PASS (%lu zero samples)\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1912 | (unsigned long)zero_samples); |
Glenn Randers-Pehrson | 08a3343 | 1998-03-07 06:06:55 -0600 | [diff] [blame] | 1913 | #else |
| 1914 | fprintf(STDERR, " PASS\n"); |
| 1915 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1916 | #ifdef PNG_READ_USER_TRANSFORM_SUPPORTED |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1917 | for (k = 0; k<256; k++) |
| 1918 | if (filters_used[k]) |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1919 | fprintf(STDERR, " Filter %d was used %lu times\n", |
Glenn Randers-Pehrson | e3f3c4e | 2010-02-07 18:08:50 -0600 | [diff] [blame] | 1920 | k, (unsigned long)filters_used[k]); |
Glenn Randers-Pehrson | 4393a9a | 1999-09-17 12:27:26 -0500 | [diff] [blame] | 1921 | #endif |
Glenn Randers-Pehrson | e26c095 | 2009-09-23 11:22:08 -0500 | [diff] [blame] | 1922 | #ifdef PNG_TIME_RFC1123_SUPPORTED |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1923 | if (tIME_chunk_present != 0) |
| 1924 | fprintf(STDERR, " tIME = %s\n", tIME_string); |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 1925 | #endif /* PNG_TIME_RFC1123_SUPPORTED */ |
| 1926 | } |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1927 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1928 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1929 | else |
| 1930 | { |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1931 | if (verbose == 0 && i != 2) |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1932 | { |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1933 | fprintf(STDERR, "\n Testing %s:", inname); |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1934 | #if PNG_DEBUG > 0 |
| 1935 | fprintf(STDERR, "\n"); |
| 1936 | #endif |
| 1937 | } |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1938 | |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1939 | fprintf(STDERR, " FAIL\n"); |
| 1940 | ierror += kerror; |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1941 | } |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 1942 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1943 | if (allocation_now != current_allocation) |
| 1944 | fprintf(STDERR, "MEMORY ERROR: %d bytes lost\n", |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1945 | current_allocation - allocation_now); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1946 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1947 | if (current_allocation != 0) |
| 1948 | { |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1949 | memory_infop pinfo = pinformation; |
Glenn Randers-Pehrson | 5c6aeb2 | 1998-12-29 11:47:59 -0600 | [diff] [blame] | 1950 | |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1951 | fprintf(STDERR, "MEMORY ERROR: %d bytes still allocated\n", |
| 1952 | current_allocation); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1953 | |
Glenn Randers-Pehrson | 61c32d9 | 2000-02-04 23:40:16 -0600 | [diff] [blame] | 1954 | while (pinfo != NULL) |
| 1955 | { |
Glenn Randers-Pehrson | 7f68263 | 2014-10-28 10:22:37 -0500 | [diff] [blame] | 1956 | fprintf(STDERR, " %lu bytes at %p\n", |
| 1957 | (unsigned long)pinfo->size, pinfo->pointer); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1958 | pinfo = pinfo->next; |
| 1959 | } |
| 1960 | } |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1961 | #endif |
Glenn Randers-Pehrson | c4a2ae6 | 1998-01-16 22:06:18 -0600 | [diff] [blame] | 1962 | } |
Glenn Randers-Pehrson | 37f116a | 2004-08-15 07:15:39 -0500 | [diff] [blame] | 1963 | #if defined(PNG_USER_MEM_SUPPORTED) && PNG_DEBUG |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 1964 | fprintf(STDERR, " Current memory allocation: %10d bytes\n", |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1965 | current_allocation); |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 1966 | fprintf(STDERR, " Maximum memory allocation: %10d bytes\n", |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1967 | maximum_allocation); |
Glenn Randers-Pehrson | 104622b | 2000-05-29 08:58:03 -0500 | [diff] [blame] | 1968 | fprintf(STDERR, " Total memory allocation: %10d bytes\n", |
| 1969 | total_allocation); |
| 1970 | fprintf(STDERR, " Number of allocations: %10d\n", |
| 1971 | num_allocations); |
Glenn Randers-Pehrson | 46f61e2 | 1998-01-30 21:45:12 -0600 | [diff] [blame] | 1972 | #endif |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1973 | } |
| 1974 | |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1975 | #ifdef PNGTEST_TIMING |
| 1976 | t_stop = (float)clock(); |
| 1977 | t_misc += (t_stop - t_start); |
| 1978 | t_start = t_stop; |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1979 | fprintf(STDERR, " CPU time used = %.3f seconds", |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1980 | (t_misc+t_decode+t_encode)/(float)CLOCKS_PER_SEC); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1981 | fprintf(STDERR, " (decoding %.3f,\n", |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1982 | t_decode/(float)CLOCKS_PER_SEC); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1983 | fprintf(STDERR, " encoding %.3f ,", |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1984 | t_encode/(float)CLOCKS_PER_SEC); |
Glenn Randers-Pehrson | 145f5c8 | 2008-07-10 09:13:13 -0500 | [diff] [blame] | 1985 | fprintf(STDERR, " other %.3f seconds)\n\n", |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 1986 | t_misc/(float)CLOCKS_PER_SEC); |
| 1987 | #endif |
| 1988 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1989 | if (ierror == 0) |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1990 | fprintf(STDERR, " libpng passes test\n"); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1991 | |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1992 | else |
Glenn Randers-Pehrson | a93c942 | 2009-04-13 11:41:33 -0500 | [diff] [blame] | 1993 | fprintf(STDERR, " libpng FAILS test\n"); |
Glenn Randers-Pehrson | f24daf2 | 2010-05-06 09:44:04 -0500 | [diff] [blame] | 1994 | |
Glenn Randers-Pehrson | 0f881d6 | 1998-02-07 10:20:57 -0600 | [diff] [blame] | 1995 | return (int)(ierror != 0); |
Glenn Randers-Pehrson | 70e3f54 | 1998-01-03 22:40:55 -0600 | [diff] [blame] | 1996 | } |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 1997 | #else |
| 1998 | int |
| 1999 | main(void) |
| 2000 | { |
| 2001 | fprintf(STDERR, |
| 2002 | " test ignored because libpng was not built with read support\n"); |
John Bowler | e4413a7 | 2013-04-17 21:27:47 -0500 | [diff] [blame] | 2003 | /* And skip this test */ |
John Bowler | a847247 | 2013-12-29 10:50:51 -0600 | [diff] [blame] | 2004 | return PNG_LIBPNG_VER < 10600 ? 0 : 77; |
Glenn Randers-Pehrson | 871b1d0 | 2013-03-02 14:58:22 -0600 | [diff] [blame] | 2005 | } |
| 2006 | #endif |
Glenn Randers-Pehrson | f7d1a17 | 1998-06-06 15:31:35 -0500 | [diff] [blame] | 2007 | |
Glenn Randers-Pehrson | bcfd15d | 1999-10-01 14:22:25 -0500 | [diff] [blame] | 2008 | /* Generate a compiler error if there is an old png.h in the search path. */ |
Glenn Randers-Pehrson | 6b9a20e | 2014-10-29 09:10:15 -0500 | [diff] [blame^] | 2009 | typedef png_libpng_version_1_6_15beta02 Your_png_h_is_not_version_1_6_15beta02; |